While viral infections can disturb the host gut microbiome,the dynamic alterations in microbial composition following infection remain poorly characterized.This study identified SRV-8-infected monkeys and classified t...While viral infections can disturb the host gut microbiome,the dynamic alterations in microbial composition following infection remain poorly characterized.This study identified SRV-8-infected monkeys and classified them into five groups based on infection progression.16S rRNA amplicon sequencing revealed significant alterations in the relative and inferred absolute abundance of bacterial genera UCG-002,Agathobacter,Coprococcus,and Holdemanella during the early stage of SRV-8 infection,coinciding with provirus formation.These microbial shifts were accompanied by functional modifications in bacterial communities at the same stage.In contrast,ITS amplicon sequencing indicated no significant differences in fungal composition between healthy wild-type and SRV-8-infected monkeys.Spearman correlation analyses demonstrated close interactions between intestinal bacteria and fungi following SRV-8 infection.Additionally,SRV-8 seropositive groups exhibited significantly elevated mRNA expression levels of pro-inflammatory(TNF-α,IFN-γ,IL-1β,and IL-6)and anti-inflammatory(IL-10)cytokine genes,highlighting close associations between inflammatory cytokines and immune responses.Overall,these findings provide a comprehensive characterization of bacterial and fungal microbiota dynamics and inflammatory cytokine responses associated with SRV-8 infection,clarifying the pathobiological mechanisms underlying SRV-8 infection from the perspective of the gut microbiome.展开更多
Background:Non-human primates(NPHs),such as rhesus macaques,cynomol-gus monkeys,and Assamese macaques,play a crucial role in biomedical research.However,baseline cytokine and electrolyte data for these three species,p...Background:Non-human primates(NPHs),such as rhesus macaques,cynomol-gus monkeys,and Assamese macaques,play a crucial role in biomedical research.However,baseline cytokine and electrolyte data for these three species,particularly data stratified by age and sex,are limited.Therefore,the aim of this study was to establish and analyze age-and sex-specific cytokine and electrolyte profiles in these three species.Methods:This study included 40 rhesus macaques(21 males,19 females),33 cyn-omolgus monkeys(17 males,16 females),and 45 Assamese macaques(25 males,20 females)classified by age(1-5 years,6-12 years,>13 years)and sex.The levels of 23 immune function indicators and 5 electrolyte indicators were measured.Results:Among the three monkey species,the levels of sCD40L,IL-18,MCP-1,MIP-1β,TGFa,K^(+),Na^(+),and Cl^(-)exhibited species-,sex-,and age-related differences.Comparison within the same species,sex had no significant impact on cytokine levels in NHPs but did affect electrolyte levels,particularly Cl^(-)and Na^(+)levels,in cynomol-gus monkeys and Assamese macaques.Electrolyte levels in NHPs were not affected by age,whereas the levels of certain cytokines,particularly sCD40L,GM-CSF,and IL-10,varied with age.The remaining 21 cytokines demonstrated no significant age-related changes.Conclusions:Significant variations in cytokine and electrolyte levels exist among dif-ferent monkey species,sexes,and age groups.This research provides valuable re-sources for NHP researchers and sets the stage for further exploring the impacts of sex and age on NHP physiology and immune function.展开更多
Urban environments expose animals to abundant anthropogenic materials and foods that facilitate foraging innovations in species with oppor-tunistic diets and high behavioral flexibility.Neophilia and exploration tende...Urban environments expose animals to abundant anthropogenic materials and foods that facilitate foraging innovations in species with oppor-tunistic diets and high behavioral flexibility.Neophilia and exploration tendency are believed to be important behavioral traits for animals thriving in urban environments.Vervet monkeys(Chlorocebus pygerythrus)are one of few primate species that have successfully adapted to urban environments,thus making them an ideal species to study these traits.Using a within-species cross-habitat approach,we compared neophilia and exploration of novel objects(jointly referred to as"object curiosity")between semi-urban,wild,and captive monkeys to shed light on the cognitive traits facilitating urban living.To measure"object curiosity:"we exposed monkeys to various types of novel stimuli and compared their approaches and explorative behavior.Our results revealed differences in the number of approaches and explorative behavior toward novel stimuli between the habitat types considered.Captive vervet monkeys were significantly more explorative than both semi-urban and wild troops,sug-gesting that positive experiences with humans and lack of predation,rather than exposure to human materials per se,influence object curiosity.Across habitats,juvenile males were the most explorative age-sex class.This is likely due to males being the dispersing sex and juveniles being more motivated to learn about their environment.Additionally,we found that items potentially associated with human food,elicited stronger explorative responses in semi-urban monkeys than non-food related objects,suggesting that their motivation to explore might be driven by"anthrophilia'that is,their experience of rewarding foraging on similar anthropogenic food sources.We conclude that varying levels of exposure to humans,predation and pre-exposure to human food packaging explain variation in"object curiosity"in our sample of vervet monkeys.展开更多
DNA methylation plays a crucial role in environmental adaptations.Here,using whole-genome bisulfite sequencing,we generated comprehensive genome-wide DNA methylation profiles for the high-altitude Yunnan snub-nosed mo...DNA methylation plays a crucial role in environmental adaptations.Here,using whole-genome bisulfite sequencing,we generated comprehensive genome-wide DNA methylation profiles for the high-altitude Yunnan snub-nosed monkey(Rhinopithecus bieti)and the closely related golden snub-nosed monkey(R.roxellana).Our findings indicated a slight increase in overall DNA methylation levels in golden snub-nosed monkeys compared to Yunnan snub-nosed monkeys,suggesting a higher prevalence of hypermethylated genomic regions in the former.Comparative genomic methylation analysis demonstrated that genes associated with differentially methylated regions were involved in membrane fusion,vesicular formation and trafficking,hemoglobin function,cell cycle regulation,and neuronal differentiation.These results suggest that the high-altitude-related epigenetic modifications are extensive,involving a complete adaptation process from the inhibition of single Ca^(2+)channel proteins to multiple proteins collaboratively enhancing vesicular function or inhibiting cell differentiation and proliferation.Functional assays demonstrated that overexpression or down-regulation of candidate genes,such as SNX10,TIMELESS,and CACYBP,influenced cell viability under stress conditions.Overall,this research suggests that comparing DNA methylation across closely related species can identify novel candidate genomic regions and genes associated with local adaptations,thereby deepening our understanding of the mechanisms underlying environmental adaptations.展开更多
Complex brain diseases seriously endanger human health,and early diagnostic biomarkers and effective treatments are currently lacking.Due to ethical constraints on human research,establishing monkey models is crucial ...Complex brain diseases seriously endanger human health,and early diagnostic biomarkers and effective treatments are currently lacking.Due to ethical constraints on human research,establishing monkey models is crucial to address these issues.With the rapid development of technology,transgenic monkey models of a range of brain diseases,especially autism spectrum disorder(ASD),have been successfully established.However,to establish practical and effective brain disease models and subsequently apply them to disease mechanism and treatment studies,there is still a lack of a standard tool,i.e.,a system for collecting and analyzing the daily behaviors of brain disease model monkeys.Therefore,with the goal of undertaking a comprehensive and quantitative study of behavioral phenotypes,we established a standard daily behavior collection and analysis system,including behavioral data collection protocols and a monkey daily behavior ethogram(MDBE)for rhesus and cynomolgus monkeys,which are the most commonly used non-human primates in model construction.Then,we used ASD as an application example after referring to the Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition,Text Revision(DSM-5-TR),which is widely used in clinical disease diagnosis to obtain ASD core clinical symptoms.We then established a sub-ethogram(ASD monkey core behavior ethogram(MCBE-ASD))specifically for quantitative assessment of the core clinical symptoms of an ASD monkey model based on MDBE.Subsequently,we demonstrated the high reproducibility of the system.展开更多
Retrograde adeno-associated viruses(AAVs)are capable of infecting the axons of projection neurons and serve as a powerful tool for the anatomical and functional characterization of neural networks.However,few retro-gr...Retrograde adeno-associated viruses(AAVs)are capable of infecting the axons of projection neurons and serve as a powerful tool for the anatomical and functional characterization of neural networks.However,few retro-grade AAV capsids have been shown to offer access to cor-tical projection neurons across different species and enable the manipulation of neural function in non-human primates(NHPs).Here,we report the development of a novel retro-grade AAV capsid,AAV-DJ8R,which efficiently labeled cortical projection neurons after local administration into the striatum of mice and macaques.In addition,intrastriatally injected AAV-DJ8R mediated opsin expression in the mouse motor cortex and induced robust behavioral alterations.Moreover,AAV-DJ8R markedly increased motor cortical neuron firing upon optogenetic light stimulation after viral delivery into the macaque putamen.These data demonstrate the usefulness of AAV-DJ8R as an efficient retrograde tracer for cortical projection neurons in rodents and NHPs and indicate its suitability for use in conducting functional interrogations.展开更多
Guizhou golden monkey(Rhinopithecus brelichi)was a unique,endangered and endemic primate species in Guizhou Province.It was an isolated population caused by habitat loss and fragmentation due to the human disturbance ...Guizhou golden monkey(Rhinopithecus brelichi)was a unique,endangered and endemic primate species in Guizhou Province.It was an isolated population caused by habitat loss and fragmentation due to the human disturbance in the recently 30 years in China,only distributed in Fanjingshan National Natural Reserve,Guizhou Province.To know the background with demonic population structure,we sequenced 867 bp of the mitochondrial DNA D-loop from 312 fresh fecal samples,results showed there 11 haplotypes among these samples,h was 0.517,πwas 0.00413.It indicated that this species had the lowest genetic diversity among four golden monkeys in China and need strengthen the conversation concern for this species immediately.展开更多
The objective of this study was to set up a rhesus monkey model of polycystic ovary syndrome（PCOS）,which is globally prevalent among reproductive-aged human women,and to understand the reproductive traits of PCOS fe...The objective of this study was to set up a rhesus monkey model of polycystic ovary syndrome（PCOS）,which is globally prevalent among reproductive-aged human women,and to understand the reproductive traits of PCOS female monkeys.Six adult female rhesus monkeys aged 6-10 a,were divided into a PCOS group and a control group.The PCOS group were given two cycles of subcutaneous injections of propionic acid testosterone（PAT）,3.5 mg/kg body weight,on day 1,day 3,and day 5 of the menstrual cycle,respectively,and then given muscle injections of human chorionic gonadotropin（HCG）,350 IU/kg body wtight,on day 7,day 9,and day 11,respectively.Results showed that high levels of serum LH and T [（5.35±0.17） IU/L and（7.58±0.14） ng/mL,respectively],and a high ratio value of LH/FSH（5.35/1.30=4.12） were observed in the PCOS group.No significant differences were found in serum FSH,E2,and P in the PCOS group compared with those of the control.Polycystic ovaries in the PCOS monkeys were recorded by live ultrasound.The blastocysts rates of the PCOS vs.the control were 23.53% vs.66.67%,and there was a significant difference between the two groups.This study shows that PAT coupled with HCG can induce PCOS in rhesus monkeys in the short term.The reproductive features of PCOS monkeys were similar to those of PCOS patients.展开更多
Hypobaric hypoxia (HH) exposure can cause serious brain injury as well as life-threatening cerebral edema in severe cases. Previous studies on the mechanisms of HH-induced brain injury have been conducted primarily us...Hypobaric hypoxia (HH) exposure can cause serious brain injury as well as life-threatening cerebral edema in severe cases. Previous studies on the mechanisms of HH-induced brain injury have been conducted primarily using non-primate animal models that are genetically distant to humans, thus hindering the development of disease treatment. Here, we report that cynomolgus monkeys (Macaca fascicularis) exposed to acute HH developed human-like HH syndrome involving severe brain injury and abnormal behavior. Transcriptome profiling of white blood cells and brain tissue from monkeys exposed to increasing altitude revealed the central role of the HIF-1 and other novel signaling pathways, such as the vitamin D receptor (VDR) signaling pathway, in co-regulating HH-induced inflammation processes. We also observed profound transcriptomic alterations in brains after exposure to acute HH, including the activation of angiogenesis and impairment of aerobic respiration and protein folding processes, which likely underlie the pathological effects of HH-induced brain injury. Administration of progesterone (PROG) and steroid neuroprotectant 5α-androst-3β,5,6β-triol (TRIOL) significantly attenuated brain injuries and rescued the transcriptomic changes induced by acute HH. Functional investigation of the affected genes suggested that these two neuroprotectants protect the brain by targeting different pathways, with PROG enhancing erythropoiesis and TRIOL suppressing glutamate-induced excitotoxicity. Thus, this study advances our understanding of the pathology induced by acute HH and provides potential compounds for the development of neuroprotectant drugs for therapeutic treatment.展开更多
Postpartum depression （PPD） is a modified form of major depressive disorders （MDD） that can exert profound negative effects on both mothers and infants than MDD. Within the postpartum period, both mothers and infa...Postpartum depression （PPD） is a modified form of major depressive disorders （MDD） that can exert profound negative effects on both mothers and infants than MDD. Within the postpartum period, both mothers and infants are susceptible; but because PPD typically occurs for short durations and has moderate symptoms, there exists challenges in exploring and addressing the underlying cause of the depression. This fact highlights the need for relevant animal models. In the present study, postpartum adult female cynomolgus monkeys （Macaca fascicularis） living in breeding groups were observed for typical depressive behavior. The huddle posture behavior was utilized as an indicator of behavioral depression postpartum （BDP） as it has been established as the core depressive-like behavior in primates. Monkeys were divided into two groups： A t3DP group （n=6）, which were found to spend more time huddling over the first two weeks postpartum than other individuals that formed a non-depression control group （n=4）. The two groups were then further analyzed for locomotive activity, stressful events, hair cortisol levels and for maternal interactive behaviors. No differences were found between the BDP and control groups in locomotive activity, in the frequencies of stressful events experienced and in hair cortisol levels. These findings suggested that the postpartum depression witnessed in the monkeys was not related to external factors other than puerperium period. Interestingly, the BDP monkeys displayed an abnormal maternal relationship consisting of increased infant grooming. Taken together, these findings suggest that the adult female cynomolgus monkeys provide a natural model of behavioral postpartum depression that holds a number of advantages over commonly used rodent systems in PPD modeling. The cynomolgus monkeys have a highly-organized social hierarchy and reproductive characteristics without seasonal restriction--similar to humans--as well as much greater homology to humans than rodents. As such, this model may provide a greater translational efficiency and research platform for systematically investigating the etiology, treatment, prevention of PPD.展开更多
Most extant nonhuman primates occasionally prey on fast-moving, warm-blooded animals; however, Indriidae, Lepilemuridae, and Colobinae either scavenged for meat or did not eat meat at all. Here we report six cases of ...Most extant nonhuman primates occasionally prey on fast-moving, warm-blooded animals; however, Indriidae, Lepilemuridae, and Colobinae either scavenged for meat or did not eat meat at all. Here we report six cases of animal consumption by the snub-nosed monkey Rhinopithecus bieti in a wild, habituated group between 2004 and 2009 in Yunnan, China. At present, only males in an all-male unit within the study group were involved in active hunting. Such a male-biased activity may be related to the group structure and spatial spread of R. bieti. Two females were observed eating freshly killed birds. The findings confirmed that R. bieti engaged in scavenging and, when hunting, employed a cranio-cervical bite to kill their prey. Meat eating is likely a nutrient maximization feeding strategy in R. bieti, especially in males. A begging behavior occurred after successful prey capture. Although begging was observed, no sharing of the meat was seen. The present findings illuminate the dietary diversity of R. bieti and their ability to expand their dietary spectrum.展开更多
In this study, we developed a systemic PD model in middle-aged cynomolgus monkeys using individualized low-dose MPTP, to explore effective indicators for the early prediction of clinical outcomes. MPTP was not stopped...In this study, we developed a systemic PD model in middle-aged cynomolgus monkeys using individualized low-dose MPTP, to explore effective indicators for the early prediction of clinical outcomes. MPTP was not stopped until the animals showed typical PD motor symptoms on days 10 to 13 after MPTP administration when the Kurlan score reached 10; this abrogated the dif- ferences in individual susceptibility to MPTP. The clinical symptoms persisted, peaking on days 3 to 12 after MPTP withdrawal （rapid progress stage）, and then the Kurlan score plateaued. A Kurlan score at the end of the rapid progress stage 〉15 reflected stable or slowly-progressive PD, while a score 〈15 indicated spontaneous recovery. The entire clinical evolution and outcome of the systemic PD model was characterized in this study, thus providing options for therapeutic and translational research.展开更多
We examined time allocation by Sichuan snub-nosed monkeys Rhinopithecus roxellana in the montane, temperate and highly seasonal forests of the Shennongjia Nature Reserve in China, in order to improve our understanding...We examined time allocation by Sichuan snub-nosed monkeys Rhinopithecus roxellana in the montane, temperate and highly seasonal forests of the Shennongjia Nature Reserve in China, in order to improve our understanding of the ecological and social influences on monkey behavior. We collected data on activity budgets in relation to food availability in a group of monkeys from July 2003 to September 2004 （except February 2004）, using instantaneous scan samples. The monkeys spent 36.21% of daytime moving （ n = 21, 269 records）, 24.39% foraging, 9.33% inactive, 11,7% performing social behaviors, and 18.38% performing other behaviors. There were seasonal and annual variations in the proportions of time devoted to some activities. These variations were largely attributed to seasonal or annual fluctuations in the distribution and quality of food resources. Adult males spent more time moving, searching, and displaying other behaviors, but less time feeding and performing social behaviors than adult females. Adults performed other behaviors more often and moving less often than juveniles. These differences in activity budgets may reflect fundamental differences in reproductive biology, parental investment, and development among the different age/sex classes [ Current Zoology 55 （3） ： 173 - 179, 2009] .展开更多
DEAR EDITOR,Major depressive disorder (MDD), commonly known as depression, is a mental disease characterized by a core symptom of low mood. It lasts at least two weeks (Badamasi et al., 2019;Wang et al., 2019) and is ...DEAR EDITOR,Major depressive disorder (MDD), commonly known as depression, is a mental disease characterized by a core symptom of low mood. It lasts at least two weeks (Badamasi et al., 2019;Wang et al., 2019) and is frequently accompanied by low self-esteem, loss of interest in routinely enjoyable activities, low energy, and unexplained pain (Huey et al., 2018;Park et al., 2012;Post & Warden, 2018;Rice et al., 2019;Xiao et al., 2018). Approximately 2%–8% of adults with MDD commit suicide (Richards & O'Hara, 2014;Strakowski & Nelson, 2015), and around half of suicidal individuals suffer depression or other mood disorders (Bachmann, 2018).展开更多
Fluoxetine(Prozac^(TM))is the only antidepressant approved by the US Food and Drug Administration(FDA)for the treatment of major depressive disorder(MDD)in children.Despite its considerable efficacy as a selective ser...Fluoxetine(Prozac^(TM))is the only antidepressant approved by the US Food and Drug Administration(FDA)for the treatment of major depressive disorder(MDD)in children.Despite its considerable efficacy as a selective serotonin reuptake inhibitor,the possible long-term effects of fluoxetine on brain development in children are poorly understood.In the current study,we aimed to delineate molecular mechanisms and protein biomarkers in the brains of juvenile rhesus macaques(Macaca mulatta)one year after the discontinuation of fluoxetine treatment using proteomic and phosphoproteomic profiling.We identified several differences in protein expression and phosphorylation in the dorsolateral prefrontal cortex(DLPFC)and cingulate cortex(CC)that correlated with impulsivity in animals,suggesting that the GABAergic synapse pathway may be affected by fluoxetine treatment.Biomarkers in combination with the identified pathways contribute to a better understanding of the mechanisms underlying the chronic effects of fluoxetine after discontinuation in children.展开更多
The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental to...The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental toxicity and developmental immunotoxicity. Harem-mating was used in 96 female and 16 male rhesus monkeys. Pregnancy was confirmed on gestation day(GD)18 by ultrasound. The blood samples of rhesus monkeys were collected at various times(20 days before pregnancy and GD20, 100 and 150). The analyses of blood chemistry, hematology, and lymphocyte subsets were performed. Copmpared with 20 days before pregnancy, Significant decreases(P < 0.05) were observed in HCT and RBC on GD20, GD150 and in HGB on GD150, Significant increases in NEUT and decreases in LYMPH on GD20 were observed. Significant decreases in ALB from GD20 to GD150 were observed, significant decreases in TP was observed on GD100. Significant increases in mean GLU were observed on GD20 and GD150 during pregnancy. Significant decreases(P < 0.05) in CD20+ subsets on GD100, GD150 and CD4+/CD8+ ratio on GD150 were observed, The significant changes of MCV, MCHC, RDW-SD, MCV, MONO, ALT, AST, GLB, ALP, TBIL, DBIL, IBIL, GGT, CR-S, URIC, TC, TG and CK were observed during the pregnant period, but no biologic change were observed, There were no significant changes in MCH, RDW-CV, MPV, BUN, CD3+, CD4+ and CD8+ during pregnancy. These data provide a database for preclinical study in rhesus monkeys. Physiological anemia, hyperglycemia, and immune suppression may occur in pregnant rhesus monkey which is similar to that found in human, and it is essential to distinguish the physiological changes from the pharmacological effects in reproductive and developmental toxicity and developmental immunotoxicity studies of pharmaceuticals.展开更多
During natural viewing,we often recognize multiple objects,detect their motion,and select one object as the target to track.It remains to be determined how such behavior is guided by the integration of visual form and...During natural viewing,we often recognize multiple objects,detect their motion,and select one object as the target to track.It remains to be determined how such behavior is guided by the integration of visual form and motion perception.To address this,we studied how monkeys made a choice to track moving targets with different forms by smooth pursuit eye movements in a two-target task.We found that pursuit responses were biased toward the motion direction of a target with a hole.By computing the relative weighting,we found that the target with a hole exhibited a larger weight for vector computation.The global hole feature dominated other form properties.This dominance failed to account for changes in pursuit responses to a target with different forms moving singly.These findings suggest that the integration of visual form and motion perception can reshape the competition in sensorimotor networks to guide behavioral selection.展开更多
[Objective] The paper was to understand the epidemiology of common diseases of laboratory monkeys in Kunming area. [Method]Through the investigation of sick and dead monkeys in a large-scale laboratory monkey breeding...[Objective] The paper was to understand the epidemiology of common diseases of laboratory monkeys in Kunming area. [Method]Through the investigation of sick and dead monkeys in a large-scale laboratory monkey breeding facility in Kunming area in 2014,the animals were classified depending on the main symptoms,and diseases were classified according to adult and juvenile monkeys. Data were analyzed by Office Excel 2010 software. [Result]Digestive system diseases,respiratory system diseases,trauma,reproductive system diseases,and locomotor system diseases were common disease types of laboratory monkeys in Kunming area,accounting for 47. 45%,13. 06%,12. 10%,11. 46% and 8. 92%,respectively. Common diseases included diarrhea,soft tissue injury,abortion,lobar pneumonia,dysentery,arthritis,bowel gas,chronic colitis,and extremely poor nutrition,and the ratios were 18. 47%,11. 15%,8. 91%,8. 28%,7. 96%,5. 10%,5. 10% and 5. 09%,respectively. [Conclusion]A set of scientific and reasonable measures for prevention and control of diseases is formulated,which is of great significance for improving the quantity and quality of laboratory monkeys and ensuring the accuracy of animal test results.展开更多
Objective: To investigate the curative effect of Zhongyan No. II (ZY II ) in treating SIVmac251 infection in macaques monkeys and evaluate the anti-viral effect of the drug as well as its protection on organism. Metho...Objective: To investigate the curative effect of Zhongyan No. II (ZY II ) in treating SIVmac251 infection in macaques monkeys and evaluate the anti-viral effect of the drug as well as its protection on organism. Methods: Using SIVmac251 infected monkey model to detect the plasma SIVP 27 antigen level by viral isolation and ELISA; determine the T-lymphocyte subsets CD4 and CD8 by indirect immunofluorescence and flow cytometry, and investigate the serum content of neopterin and B2-mi-croglobulin B2-MG)by ELISA. The pathological examination was conducted as well. Results: ZY II展开更多
基金supported by the National Science and Technology Innovation 2030 Major Program(2021ZD0200900)National Key Research and Development Program of China(2022YFF0710901)+3 种基金National Natural Science Foundation of China(82021001,31825018)Biological Resources Program of the Chinese Academy of Sciences(KFJBRP-005)111 Project D18007a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。
文摘While viral infections can disturb the host gut microbiome,the dynamic alterations in microbial composition following infection remain poorly characterized.This study identified SRV-8-infected monkeys and classified them into five groups based on infection progression.16S rRNA amplicon sequencing revealed significant alterations in the relative and inferred absolute abundance of bacterial genera UCG-002,Agathobacter,Coprococcus,and Holdemanella during the early stage of SRV-8 infection,coinciding with provirus formation.These microbial shifts were accompanied by functional modifications in bacterial communities at the same stage.In contrast,ITS amplicon sequencing indicated no significant differences in fungal composition between healthy wild-type and SRV-8-infected monkeys.Spearman correlation analyses demonstrated close interactions between intestinal bacteria and fungi following SRV-8 infection.Additionally,SRV-8 seropositive groups exhibited significantly elevated mRNA expression levels of pro-inflammatory(TNF-α,IFN-γ,IL-1β,and IL-6)and anti-inflammatory(IL-10)cytokine genes,highlighting close associations between inflammatory cytokines and immune responses.Overall,these findings provide a comprehensive characterization of bacterial and fungal microbiota dynamics and inflammatory cytokine responses associated with SRV-8 infection,clarifying the pathobiological mechanisms underlying SRV-8 infection from the perspective of the gut microbiome.
基金National Resources Center for Non Human PrimatesNational Key R&D Project of China,Grant/Award Number:2021YFF0702804。
文摘Background:Non-human primates(NPHs),such as rhesus macaques,cynomol-gus monkeys,and Assamese macaques,play a crucial role in biomedical research.However,baseline cytokine and electrolyte data for these three species,particularly data stratified by age and sex,are limited.Therefore,the aim of this study was to establish and analyze age-and sex-specific cytokine and electrolyte profiles in these three species.Methods:This study included 40 rhesus macaques(21 males,19 females),33 cyn-omolgus monkeys(17 males,16 females),and 45 Assamese macaques(25 males,20 females)classified by age(1-5 years,6-12 years,>13 years)and sex.The levels of 23 immune function indicators and 5 electrolyte indicators were measured.Results:Among the three monkey species,the levels of sCD40L,IL-18,MCP-1,MIP-1β,TGFa,K^(+),Na^(+),and Cl^(-)exhibited species-,sex-,and age-related differences.Comparison within the same species,sex had no significant impact on cytokine levels in NHPs but did affect electrolyte levels,particularly Cl^(-)and Na^(+)levels,in cynomol-gus monkeys and Assamese macaques.Electrolyte levels in NHPs were not affected by age,whereas the levels of certain cytokines,particularly sCD40L,GM-CSF,and IL-10,varied with age.The remaining 21 cytokines demonstrated no significant age-related changes.Conclusions:Significant variations in cytokine and electrolyte levels exist among dif-ferent monkey species,sexes,and age groups.This research provides valuable re-sources for NHP researchers and sets the stage for further exploring the impacts of sex and age on NHP physiology and immune function.
基金the funding agencies behind this research,the Finnish KONE Foundation,the Wenner Gren Foundation,and the Swiss National Science Foundation(CRSK-3_220769)awarded to SE.
文摘Urban environments expose animals to abundant anthropogenic materials and foods that facilitate foraging innovations in species with oppor-tunistic diets and high behavioral flexibility.Neophilia and exploration tendency are believed to be important behavioral traits for animals thriving in urban environments.Vervet monkeys(Chlorocebus pygerythrus)are one of few primate species that have successfully adapted to urban environments,thus making them an ideal species to study these traits.Using a within-species cross-habitat approach,we compared neophilia and exploration of novel objects(jointly referred to as"object curiosity")between semi-urban,wild,and captive monkeys to shed light on the cognitive traits facilitating urban living.To measure"object curiosity:"we exposed monkeys to various types of novel stimuli and compared their approaches and explorative behavior.Our results revealed differences in the number of approaches and explorative behavior toward novel stimuli between the habitat types considered.Captive vervet monkeys were significantly more explorative than both semi-urban and wild troops,sug-gesting that positive experiences with humans and lack of predation,rather than exposure to human materials per se,influence object curiosity.Across habitats,juvenile males were the most explorative age-sex class.This is likely due to males being the dispersing sex and juveniles being more motivated to learn about their environment.Additionally,we found that items potentially associated with human food,elicited stronger explorative responses in semi-urban monkeys than non-food related objects,suggesting that their motivation to explore might be driven by"anthrophilia'that is,their experience of rewarding foraging on similar anthropogenic food sources.We conclude that varying levels of exposure to humans,predation and pre-exposure to human food packaging explain variation in"object curiosity"in our sample of vervet monkeys.
基金supported by the National Natural Science Foundation of China(32330015,31821001)Strategic Priority Research Program of the Chinese Academy of Sciences(XDB31000000)。
文摘DNA methylation plays a crucial role in environmental adaptations.Here,using whole-genome bisulfite sequencing,we generated comprehensive genome-wide DNA methylation profiles for the high-altitude Yunnan snub-nosed monkey(Rhinopithecus bieti)and the closely related golden snub-nosed monkey(R.roxellana).Our findings indicated a slight increase in overall DNA methylation levels in golden snub-nosed monkeys compared to Yunnan snub-nosed monkeys,suggesting a higher prevalence of hypermethylated genomic regions in the former.Comparative genomic methylation analysis demonstrated that genes associated with differentially methylated regions were involved in membrane fusion,vesicular formation and trafficking,hemoglobin function,cell cycle regulation,and neuronal differentiation.These results suggest that the high-altitude-related epigenetic modifications are extensive,involving a complete adaptation process from the inhibition of single Ca^(2+)channel proteins to multiple proteins collaboratively enhancing vesicular function or inhibiting cell differentiation and proliferation.Functional assays demonstrated that overexpression or down-regulation of candidate genes,such as SNX10,TIMELESS,and CACYBP,influenced cell viability under stress conditions.Overall,this research suggests that comparing DNA methylation across closely related species can identify novel candidate genomic regions and genes associated with local adaptations,thereby deepening our understanding of the mechanisms underlying environmental adaptations.
基金supported by the Key-Area Research and Development Program of Guangdong Province(No.2019B030335001)the STI2030-Major Projects(No.2021ZD0200900)+9 种基金the National Key Research and Development Program of China(Nos.2021YFF0702700 and 2018YFA0801403)the National Natural Science Foundation of China(Nos.81960422,32100801,82101241,82360226,82160923,82260929,82374425,and 32460194)the Strategic Priority Research Program of the Chinese Academy of Sciences(CAS)(No.XDB32060200)the STI2030-Major Projects(Nos.2022ZD0205200 and 2022ZD0212700)the Science and Technology Department of Yunnan Province(Nos.202305AH340006 and 202305AH340007)the Yunnan Fundamental Research Projects(Nos.202201AT070153 and 202201AT070139)the Science and Technology Project of Yunnan Province(No.202101AY070001-001)the Yunnan Revitalization Talent Support Program(No.YNWR-QNBJ2019-043)the CAS“Light of West China”Programthe Yunnan Revitalization Talents Support Plan。
文摘Complex brain diseases seriously endanger human health,and early diagnostic biomarkers and effective treatments are currently lacking.Due to ethical constraints on human research,establishing monkey models is crucial to address these issues.With the rapid development of technology,transgenic monkey models of a range of brain diseases,especially autism spectrum disorder(ASD),have been successfully established.However,to establish practical and effective brain disease models and subsequently apply them to disease mechanism and treatment studies,there is still a lack of a standard tool,i.e.,a system for collecting and analyzing the daily behaviors of brain disease model monkeys.Therefore,with the goal of undertaking a comprehensive and quantitative study of behavioral phenotypes,we established a standard daily behavior collection and analysis system,including behavioral data collection protocols and a monkey daily behavior ethogram(MDBE)for rhesus and cynomolgus monkeys,which are the most commonly used non-human primates in model construction.Then,we used ASD as an application example after referring to the Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition,Text Revision(DSM-5-TR),which is widely used in clinical disease diagnosis to obtain ASD core clinical symptoms.We then established a sub-ethogram(ASD monkey core behavior ethogram(MCBE-ASD))specifically for quantitative assessment of the core clinical symptoms of an ASD monkey model based on MDBE.Subsequently,we demonstrated the high reproducibility of the system.
基金supported by Ministry of Science and Technology of China(2019YFA0903803 and 2018YFA0801404)National Natural Science Foundation of China(31871090,32000730,81961128019,and 81901397)+7 种基金Shenzhen Science and Technology Innovation Commission(JCYJ20190809171003698,JCYJ202103243001018,JCYJ20180507182505475,and JCYJ20180504165804015)Shenzhen Technological Research Center for Primate Translational Medicine(F-2021-Z99-504979)Youth Innovation Promotion Association(CAS 2017120)Chinese Academy of Sciences International Partnership Program(172644KYSB20170004)China Postdoctoral Science Foundation(2019M653115.)CAS Key Laboratory of Brain Connectome and Manipulation(2019DP173024)Guangdong Provincial Key Laboratory of Brain Connectome and Behavior(2017B030301017)International Science and Technology Cooperation Base of Guangdong Province(2019A050505008).
文摘Retrograde adeno-associated viruses(AAVs)are capable of infecting the axons of projection neurons and serve as a powerful tool for the anatomical and functional characterization of neural networks.However,few retro-grade AAV capsids have been shown to offer access to cor-tical projection neurons across different species and enable the manipulation of neural function in non-human primates(NHPs).Here,we report the development of a novel retro-grade AAV capsid,AAV-DJ8R,which efficiently labeled cortical projection neurons after local administration into the striatum of mice and macaques.In addition,intrastriatally injected AAV-DJ8R mediated opsin expression in the mouse motor cortex and induced robust behavioral alterations.Moreover,AAV-DJ8R markedly increased motor cortical neuron firing upon optogenetic light stimulation after viral delivery into the macaque putamen.These data demonstrate the usefulness of AAV-DJ8R as an efficient retrograde tracer for cortical projection neurons in rodents and NHPs and indicate its suitability for use in conducting functional interrogations.
文摘Guizhou golden monkey(Rhinopithecus brelichi)was a unique,endangered and endemic primate species in Guizhou Province.It was an isolated population caused by habitat loss and fragmentation due to the human disturbance in the recently 30 years in China,only distributed in Fanjingshan National Natural Reserve,Guizhou Province.To know the background with demonic population structure,we sequenced 867 bp of the mitochondrial DNA D-loop from 312 fresh fecal samples,results showed there 11 haplotypes among these samples,h was 0.517,πwas 0.00413.It indicated that this species had the lowest genetic diversity among four golden monkeys in China and need strengthen the conversation concern for this species immediately.
基金supported by Yunnan Key Laboratory of Animal Reproductive Biology(2010-03)
文摘The objective of this study was to set up a rhesus monkey model of polycystic ovary syndrome（PCOS）,which is globally prevalent among reproductive-aged human women,and to understand the reproductive traits of PCOS female monkeys.Six adult female rhesus monkeys aged 6-10 a,were divided into a PCOS group and a control group.The PCOS group were given two cycles of subcutaneous injections of propionic acid testosterone（PAT）,3.5 mg/kg body weight,on day 1,day 3,and day 5 of the menstrual cycle,respectively,and then given muscle injections of human chorionic gonadotropin（HCG）,350 IU/kg body wtight,on day 7,day 9,and day 11,respectively.Results showed that high levels of serum LH and T [（5.35±0.17） IU/L and（7.58±0.14） ng/mL,respectively],and a high ratio value of LH/FSH（5.35/1.30=4.12） were observed in the PCOS group.No significant differences were found in serum FSH,E2,and P in the PCOS group compared with those of the control.Polycystic ovaries in the PCOS monkeys were recorded by live ultrasound.The blastocysts rates of the PCOS vs.the control were 23.53% vs.66.67%,and there was a significant difference between the two groups.This study shows that PAT coupled with HCG can induce PCOS in rhesus monkeys in the short term.The reproductive features of PCOS monkeys were similar to those of PCOS patients.
基金supported by the National Natural Science Foundation of China(81773711)to W.Y.Strategic Priority Research Program of the Chinese Academy of Sciences(XDB13000000)+6 种基金Lundbeck Foundation Grant(R190-2014-2827)Carlsberg Foundation Grant(CF16-0663)to G.J.Z.Science and Technology Program of Guangzhou,China(201704020103)to W.Y.Introduction of Innovative R&D Team Program of Guangdong Province(2013Y104)Leading Talent Project in Science and Technology of Guangzhou Development District(2019-L002)National Major Scientific and Technological Special Project for “Significant New Drugs Development”(2016ZX09101026)to S.Z.L.Key Projects of the Military Science and Technology PLA(AWS14C007 and AWS16J023)to Y.Q.G
文摘Hypobaric hypoxia (HH) exposure can cause serious brain injury as well as life-threatening cerebral edema in severe cases. Previous studies on the mechanisms of HH-induced brain injury have been conducted primarily using non-primate animal models that are genetically distant to humans, thus hindering the development of disease treatment. Here, we report that cynomolgus monkeys (Macaca fascicularis) exposed to acute HH developed human-like HH syndrome involving severe brain injury and abnormal behavior. Transcriptome profiling of white blood cells and brain tissue from monkeys exposed to increasing altitude revealed the central role of the HIF-1 and other novel signaling pathways, such as the vitamin D receptor (VDR) signaling pathway, in co-regulating HH-induced inflammation processes. We also observed profound transcriptomic alterations in brains after exposure to acute HH, including the activation of angiogenesis and impairment of aerobic respiration and protein folding processes, which likely underlie the pathological effects of HH-induced brain injury. Administration of progesterone (PROG) and steroid neuroprotectant 5α-androst-3β,5,6β-triol (TRIOL) significantly attenuated brain injuries and rescued the transcriptomic changes induced by acute HH. Functional investigation of the affected genes suggested that these two neuroprotectants protect the brain by targeting different pathways, with PROG enhancing erythropoiesis and TRIOL suppressing glutamate-induced excitotoxicity. Thus, this study advances our understanding of the pathology induced by acute HH and provides potential compounds for the development of neuroprotectant drugs for therapeutic treatment.
基金supported by National Natural Science Foundation of China(31271167,81271495,31070963,30921064)the Yunnan Provincial Project to attract ore-hundred exceptional talents from Overseas
文摘Postpartum depression （PPD） is a modified form of major depressive disorders （MDD） that can exert profound negative effects on both mothers and infants than MDD. Within the postpartum period, both mothers and infants are susceptible; but because PPD typically occurs for short durations and has moderate symptoms, there exists challenges in exploring and addressing the underlying cause of the depression. This fact highlights the need for relevant animal models. In the present study, postpartum adult female cynomolgus monkeys （Macaca fascicularis） living in breeding groups were observed for typical depressive behavior. The huddle posture behavior was utilized as an indicator of behavioral depression postpartum （BDP） as it has been established as the core depressive-like behavior in primates. Monkeys were divided into two groups： A t3DP group （n=6）, which were found to spend more time huddling over the first two weeks postpartum than other individuals that formed a non-depression control group （n=4）. The two groups were then further analyzed for locomotive activity, stressful events, hair cortisol levels and for maternal interactive behaviors. No differences were found between the BDP and control groups in locomotive activity, in the frequencies of stressful events experienced and in hair cortisol levels. These findings suggested that the postpartum depression witnessed in the monkeys was not related to external factors other than puerperium period. Interestingly, the BDP monkeys displayed an abnormal maternal relationship consisting of increased infant grooming. Taken together, these findings suggest that the adult female cynomolgus monkeys provide a natural model of behavioral postpartum depression that holds a number of advantages over commonly used rodent systems in PPD modeling. The cynomolgus monkeys have a highly-organized social hierarchy and reproductive characteristics without seasonal restriction--similar to humans--as well as much greater homology to humans than rodents. As such, this model may provide a greater translational efficiency and research platform for systematically investigating the etiology, treatment, prevention of PPD.
基金granted by the key project of NSFC (No.30630016)the 973 Program (2007CB411600)+1 种基金the project of NSFC (No.30970442) China Program of TNC
文摘Most extant nonhuman primates occasionally prey on fast-moving, warm-blooded animals; however, Indriidae, Lepilemuridae, and Colobinae either scavenged for meat or did not eat meat at all. Here we report six cases of animal consumption by the snub-nosed monkey Rhinopithecus bieti in a wild, habituated group between 2004 and 2009 in Yunnan, China. At present, only males in an all-male unit within the study group were involved in active hunting. Such a male-biased activity may be related to the group structure and spatial spread of R. bieti. Two females were observed eating freshly killed birds. The findings confirmed that R. bieti engaged in scavenging and, when hunting, employed a cranio-cervical bite to kill their prey. Meat eating is likely a nutrient maximization feeding strategy in R. bieti, especially in males. A begging behavior occurred after successful prey capture. Although begging was observed, no sharing of the meat was seen. The present findings illuminate the dietary diversity of R. bieti and their ability to expand their dietary spectrum.
基金supported by grants from the National High-Tech Development Project of Ministry of Sciences and Technology of China(2012AA020703)the National Natural Science Foundation of China(31472056)+1 种基金Scientific Project of the Science and Technology Department of Guangxi Zhuang Autonomous Region,China(1598025-31)Scientific Project of the Science and Technology Bureau of Nanning Municipality,Guangxi Zhuang Autonomous Region,China(20145194,20155192)
文摘In this study, we developed a systemic PD model in middle-aged cynomolgus monkeys using individualized low-dose MPTP, to explore effective indicators for the early prediction of clinical outcomes. MPTP was not stopped until the animals showed typical PD motor symptoms on days 10 to 13 after MPTP administration when the Kurlan score reached 10; this abrogated the dif- ferences in individual susceptibility to MPTP. The clinical symptoms persisted, peaking on days 3 to 12 after MPTP withdrawal （rapid progress stage）, and then the Kurlan score plateaued. A Kurlan score at the end of the rapid progress stage 〉15 reflected stable or slowly-progressive PD, while a score 〈15 indicated spontaneous recovery. The entire clinical evolution and outcome of the systemic PD model was characterized in this study, thus providing options for therapeutic and translational research.
基金supported by grants from the"973"program(code:2007CB411600)the National Science Foundation(code:30670354)
文摘We examined time allocation by Sichuan snub-nosed monkeys Rhinopithecus roxellana in the montane, temperate and highly seasonal forests of the Shennongjia Nature Reserve in China, in order to improve our understanding of the ecological and social influences on monkey behavior. We collected data on activity budgets in relation to food availability in a group of monkeys from July 2003 to September 2004 （except February 2004）, using instantaneous scan samples. The monkeys spent 36.21% of daytime moving （ n = 21, 269 records）, 24.39% foraging, 9.33% inactive, 11,7% performing social behaviors, and 18.38% performing other behaviors. There were seasonal and annual variations in the proportions of time devoted to some activities. These variations were largely attributed to seasonal or annual fluctuations in the distribution and quality of food resources. Adult males spent more time moving, searching, and displaying other behaviors, but less time feeding and performing social behaviors than adult females. Adults performed other behaviors more often and moving less often than juveniles. These differences in activity budgets may reflect fundamental differences in reproductive biology, parental investment, and development among the different age/sex classes [ Current Zoology 55 （3） ： 173 - 179, 2009] .
基金supported by the National Natural Science Foundation of China(31700910)Applied Basic Research Programs of Science and Technology Commission Foundation of Yunnan Province(2017FB109)
文摘DEAR EDITOR,Major depressive disorder (MDD), commonly known as depression, is a mental disease characterized by a core symptom of low mood. It lasts at least two weeks (Badamasi et al., 2019;Wang et al., 2019) and is frequently accompanied by low self-esteem, loss of interest in routinely enjoyable activities, low energy, and unexplained pain (Huey et al., 2018;Park et al., 2012;Post & Warden, 2018;Rice et al., 2019;Xiao et al., 2018). Approximately 2%–8% of adults with MDD commit suicide (Richards & O'Hara, 2014;Strakowski & Nelson, 2015), and around half of suicidal individuals suffer depression or other mood disorders (Bachmann, 2018).
基金supported by the Max Planck Society to C.W.T.and National Institutes of Health USDHHS(R01-HD065826to M.G.,OD011107 to Harris Lewin)。
文摘Fluoxetine(Prozac^(TM))is the only antidepressant approved by the US Food and Drug Administration(FDA)for the treatment of major depressive disorder(MDD)in children.Despite its considerable efficacy as a selective serotonin reuptake inhibitor,the possible long-term effects of fluoxetine on brain development in children are poorly understood.In the current study,we aimed to delineate molecular mechanisms and protein biomarkers in the brains of juvenile rhesus macaques(Macaca mulatta)one year after the discontinuation of fluoxetine treatment using proteomic and phosphoproteomic profiling.We identified several differences in protein expression and phosphorylation in the dorsolateral prefrontal cortex(DLPFC)and cingulate cortex(CC)that correlated with impulsivity in animals,suggesting that the GABAergic synapse pathway may be affected by fluoxetine treatment.Biomarkers in combination with the identified pathways contribute to a better understanding of the mechanisms underlying the chronic effects of fluoxetine after discontinuation in children.
基金supported by the National Science and Technology Major Projects(No.2011ZX09301-110)National Genetically Modified Organisms Breeding Major Projects(No.2012ZX08011-001)
文摘The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental toxicity and developmental immunotoxicity. Harem-mating was used in 96 female and 16 male rhesus monkeys. Pregnancy was confirmed on gestation day(GD)18 by ultrasound. The blood samples of rhesus monkeys were collected at various times(20 days before pregnancy and GD20, 100 and 150). The analyses of blood chemistry, hematology, and lymphocyte subsets were performed. Copmpared with 20 days before pregnancy, Significant decreases(P < 0.05) were observed in HCT and RBC on GD20, GD150 and in HGB on GD150, Significant increases in NEUT and decreases in LYMPH on GD20 were observed. Significant decreases in ALB from GD20 to GD150 were observed, significant decreases in TP was observed on GD100. Significant increases in mean GLU were observed on GD20 and GD150 during pregnancy. Significant decreases(P < 0.05) in CD20+ subsets on GD100, GD150 and CD4+/CD8+ ratio on GD150 were observed, The significant changes of MCV, MCHC, RDW-SD, MCV, MONO, ALT, AST, GLB, ALP, TBIL, DBIL, IBIL, GGT, CR-S, URIC, TC, TG and CK were observed during the pregnant period, but no biologic change were observed, There were no significant changes in MCH, RDW-CV, MPV, BUN, CD3+, CD4+ and CD8+ during pregnancy. These data provide a database for preclinical study in rhesus monkeys. Physiological anemia, hyperglycemia, and immune suppression may occur in pregnant rhesus monkey which is similar to that found in human, and it is essential to distinguish the physiological changes from the pharmacological effects in reproductive and developmental toxicity and developmental immunotoxicity studies of pharmaceuticals.
基金supported by the Beijing Natural Science Foundation(Z210009)the National Science and Technology Innovation 2030 Major Program(STI2030-Major Projects 2022ZD0204800)+1 种基金the National Natural Science Foundation of China(32070987,31722025,31730039)the Chinese Academy of Sciences Key Program of Frontier Sciences(QYZDB-SSW-SMC019).
文摘During natural viewing,we often recognize multiple objects,detect their motion,and select one object as the target to track.It remains to be determined how such behavior is guided by the integration of visual form and motion perception.To address this,we studied how monkeys made a choice to track moving targets with different forms by smooth pursuit eye movements in a two-target task.We found that pursuit responses were biased toward the motion direction of a target with a hole.By computing the relative weighting,we found that the target with a hole exhibited a larger weight for vector computation.The global hole feature dominated other form properties.This dominance failed to account for changes in pursuit responses to a target with different forms moving singly.These findings suggest that the integration of visual form and motion perception can reshape the competition in sensorimotor networks to guide behavioral selection.
基金Supported by Yunnan Technical Innovation Project(2015XA33)Kunming Science and Technology Project(2014-04-A-S-02-3074)Yunnan Technology Innovation Talent Project(2014HB090)
文摘[Objective] The paper was to understand the epidemiology of common diseases of laboratory monkeys in Kunming area. [Method]Through the investigation of sick and dead monkeys in a large-scale laboratory monkey breeding facility in Kunming area in 2014,the animals were classified depending on the main symptoms,and diseases were classified according to adult and juvenile monkeys. Data were analyzed by Office Excel 2010 software. [Result]Digestive system diseases,respiratory system diseases,trauma,reproductive system diseases,and locomotor system diseases were common disease types of laboratory monkeys in Kunming area,accounting for 47. 45%,13. 06%,12. 10%,11. 46% and 8. 92%,respectively. Common diseases included diarrhea,soft tissue injury,abortion,lobar pneumonia,dysentery,arthritis,bowel gas,chronic colitis,and extremely poor nutrition,and the ratios were 18. 47%,11. 15%,8. 91%,8. 28%,7. 96%,5. 10%,5. 10% and 5. 09%,respectively. [Conclusion]A set of scientific and reasonable measures for prevention and control of diseases is formulated,which is of great significance for improving the quantity and quality of laboratory monkeys and ensuring the accuracy of animal test results.
文摘Objective: To investigate the curative effect of Zhongyan No. II (ZY II ) in treating SIVmac251 infection in macaques monkeys and evaluate the anti-viral effect of the drug as well as its protection on organism. Methods: Using SIVmac251 infected monkey model to detect the plasma SIVP 27 antigen level by viral isolation and ELISA; determine the T-lymphocyte subsets CD4 and CD8 by indirect immunofluorescence and flow cytometry, and investigate the serum content of neopterin and B2-mi-croglobulin B2-MG)by ELISA. The pathological examination was conducted as well. Results: ZY II
