Objective To investigate the effect of FTY720-treated immature bone marrow-derived dendritic cells（BMDCs） on the embryo resorption rate in the CBA/J× DBA/2 abortion mouse model.Methods The dendritic cells（DCs...Objective To investigate the effect of FTY720-treated immature bone marrow-derived dendritic cells（BMDCs） on the embryo resorption rate in the CBA/J× DBA/2 abortion mouse model.Methods The dendritic cells（DCs） were derived from bone marrow of DBA/2 mice, and then co-cultured with FTY720. The abortion mouse models were established by mating female CBA/J mice with DBA/2 mice. Via the CBA/J×DBA/2 abortion mouse model, six groups were established, group A： normal pregnancy model; group B： abortion mouse model with no treatment; group C： abortion mouse model injected with DC culture medium（DCCM）; group D： abortion mouse model injected with DC; group E： abortion mouse model injected with FTY720; group F： abortion model mouse injected with FTY720-DC. The differences were compared in the embryo resorption rates of the CBA/J ×DBA/2 abortion mouse model treated with FTY720-DC or different controls observed on gestation day 12 to 14, and then the microenvironment in murine pregnancy was investigated.Results The embryo resorption rate was statistically significantly decreased in group D and group E when they compared with group B and group C（P〈0.05, respectively）.Furthermore, the embryo resorption rate in group F showed a statistically significant decrease when compared with the other groups except group A（P〈0.01）. These resultssuggest that FTY720-DCs possess a notable advantage over DCs or FTY720 in reducing the embryo resorption rate of the abortion mouse model. The percentage of Th17（IL-17＋CD4＋T cells） in peripheral blood mononuclear cell（PBMC） in the abortion mouse model was 4.35%±0.34% before treated with FTY720-DC, and was1.34%±0.28% after treated with FTY720-DC（P〈0.01）. The percentage of Tregs（CD4~＋CD25~＋Foxp3~＋T cells） in PBMC was significantly increased in group F（8.35%±1.80%） as compared with group B（2.68%±0.65%）（P〈0.01）.Conclusion Adoptive transfer of FTY720-DC can statistically significantly reduce the embryo resorption rate in the CBA/J×DBA/2 abortion mouse model. The lower embryo resorption rate in the FTY720-DC treated abortion mouse model may be caused by the imbalance of Treg/Th17.展开更多
A series of copolymers of thiazoloisoindigo (Tzll) with different chalcogenophene trimers were synthesized to systematicllyinvestigate the chalcogen effect on their charge transport propertes.When only the middlethiop...A series of copolymers of thiazoloisoindigo (Tzll) with different chalcogenophene trimers were synthesized to systematicllyinvestigate the chalcogen effect on their charge transport propertes.When only the middlethiophene ring of terthiphene(T-T-T)is replaced byheavier chalcogenophenes,a preference(expressed by the ratio of μe/μh)towards electron transport was observed descending from T-T-Tto T-Se-Tthen to T-Te-T(Se and Te stand for selenophene and tellurophene,respectively).On the other hand,with the increased number of heavierchalcogenophenes,a preference toward hole transport was observed descending from Se-T-Se to Se-Se-se then to Se-Te-Se.This phenomenon iswellexplained by the balance between the aromatic resonance energy of the chalcogenophenes and the electronegativity of the chalcogens.Specifically,P(TZll-T-Se-T)displayed relatively balanced ambipolar property(μh^(max)andμe^(max) of 3.77 and 1.59 cm^(2)·v^(-1)·s^(-1)with aμe/μh of 0.42).while P(Tll-Se-Te-Se)exhibited the best preference to hole transfer with a u.u,of 0.09.P(Tzll-T-Te-T)exhibited the best preference to electrontransfer with aμe/μl,of 16 and theμe^(max)of 0.64 cm^(2)·v^(-).s^(-1)which is the highest electron mobility among the known conjugated polymerscontaining tellurophenes.展开更多
目的探讨结晶紫中性红胆盐琼脂(violet red bile agar,VRBA)配制时,用高压灭菌法代替煮沸法的可行性。方法将大肠菌群的5种标准菌株用煮沸3次、121℃高压灭菌15min和115℃高压灭菌15min后,在VRBA分别培养,观察菌株成长的差异性;同时做...目的探讨结晶紫中性红胆盐琼脂(violet red bile agar,VRBA)配制时,用高压灭菌法代替煮沸法的可行性。方法将大肠菌群的5种标准菌株用煮沸3次、121℃高压灭菌15min和115℃高压灭菌15min后,在VRBA分别培养,观察菌株成长的差异性;同时做目标菌生长率定量测试和非目标菌的定性测试。结果两种温度高压灭菌后,VRBA培养基和煮沸法处理的VRBA培养基培养的菌株成长、目标菌生长率P_R差异均无统计学意义(P值均>0.05)。肺炎克雷伯菌的生长率P_R<0.70,其余菌株的生长率P_R均>0.70。非目标菌的生长指数G均为0。结论 121℃、15min灭菌处理VRBA更方便实验室批量配制培养基和简化实验操作,提高工作效率。推荐配制VRBA时使用高压灭菌法代替煮沸法。VRBA不适用于分离肺炎克雷伯菌。展开更多
Developing new polymeric semiconductors with excellent device performance is essential for organic electronics. Herein, we synthesized two new thiazoloisoindigo(Tz II)-based polymers, namely, P(Tz II-d Th-d Th) and P(...Developing new polymeric semiconductors with excellent device performance is essential for organic electronics. Herein, we synthesized two new thiazoloisoindigo(Tz II)-based polymers, namely, P(Tz II-d Th-d Th) and P(Tz II-d Th-d Tz), by copolymerizing thiophene-flanked Tz II with bithiophene and bithiazole, respectively. Owing to the more electron-deficient nature of bithiazole than bithiophene, P(Tz II-d Th-d Tz)possesses deeper LUMO/HOMO levels of-3.45/-5.47 e V than P(Tz II-d Th-d Th)(-3.34/-5.32 e V). The organic field-effect transistor(OFET) devices based on P(Tz II-d Th-d Th) exhibited p-type behaviors with an average hole mobility value as high as 1.43 cm^(2)·V^(-1)·s^(-1), while P(Tz II-d Th-d Tz)showed typical ambipolar characteristics with average hole and electron mobilities of 0.38 and 0.56 cm^(2)·V^(-1)·s^(-1). In addition, we compared the performances of both polymers with other Tz II-based polymers reported in our previous work, and showed that the charge carrier polarity can be manipulated by adjusting the number of the thiophene units between the acceptor unit. As the increase of the number of thiophene rings,charge carrier polarity shifts from electron-dominated ambipolar transport to hole-dominated ambipolar transport and then to unipolar hole transport in OFETs, which provides an effective molecular design strategy for further optimization of polymer OFET performance.展开更多
Objective: To investigate the risk factors of macrosomia and to predict the risk of macrosomia so as to reduce the incidence of macrosomia. Methods: A total of 2063 pregnant women who met the inclusion criteria were s...Objective: To investigate the risk factors of macrosomia and to predict the risk of macrosomia so as to reduce the incidence of macrosomia. Methods: A total of 2063 pregnant women who met the inclusion criteria were selected as the subjects from February 2016 to April 2017 in Jiading District Maternal and Child Health Hospital of Shanghai and Pudong New Area Maternal and Child Health Hospital. According to the birth weight of the neonates, the neonates were divided into the macrosomia group (neonatal weight > 4000 g, n=125) and the normal infant group (2500 g < neonatal weight < 4000 g, n=1938).The general data of age, number of pregnant women, BMI before pregnancy, gestational diabetes mellitus, glucose tolerance, weight gain during pregnancy, birth weight and gestational week were compared between the two groups. Multivariate logistic regression was used to analyze the risk factors of macrosomia. Results: ①There were significant differences in BMI, glucose tolerance, fasting blood sugar, weight gain in the second trimester, weight gain in the third trimester, birth weight and gestational week between the two groups (P<0.05). ②Single factor analysis showed that pre-pregnancy BMI, gestational week at first diagnosis, fasting blood glucose tolerance, weight gain in the second trimester, weight gain in the third trimester, gestational week and birth weight were the influencing factors of macrosomia (P<0.05). ③Multi-factor analysis showed that gestational weeks, gestational diabetes, fasting glucose tolerance and weight growth in the second trimester were the main factors affecting the production of macrosomia, among which gestational diabetes was the protective factor, while gestational weeks, fasting glucose tolerance and weight growth in the second trimester were the risk factors. Conclusion: The high risk factors for macrosomia are gestational weeks, glucose tolerance, fasting blood sugar and weight gain in the second trimester of pregnancy.We should strengthen regular obstetric examination, health care during pregnancy, reasonable diet and proper exercise, and strictly control the weight gain during the second trimester of pregnancy. At the same time, we should monitor blood sugar in time so as to reduce the incidence of macrosomia.展开更多
Most of the Pleurotus eryngii(PE)are consumed after cooking.The aim of this study was to investigate the metabolites and flavour changes of PE under four cooking methods,namely,air frying,boiling,frying and steaming,b...Most of the Pleurotus eryngii(PE)are consumed after cooking.The aim of this study was to investigate the metabolites and flavour changes of PE under four cooking methods,namely,air frying,boiling,frying and steaming,by using metabolomics techniques,and to screen the components for network prediction of components that have the potential to prevent obesity,and to explore the underlying mechanisms.We used the UHPLC-Q-Exactive-MS/MS metabolomics method to identify and screen 35 metabolites as the major chemical components of PE,including lipids and lipid-like molecules,organic acids and derivatives,nucleosides,nucleotides,analogues,and other small molecules.In addition,a network pharmacology approach was used to identify targets such as STAT3,CASP3,and JUN were identified as playing important roles in the network.The results were validated by molecular docking.This study provides a basis for the optimization of cooking methods for PE and offers new insights for future research.展开更多
Thermal processing significantly impacts the quality and characteristics of shrimp meat.In this study,we employed essential physicochemical composition determination,texture analysis,sensory evaluation,an electronic t...Thermal processing significantly impacts the quality and characteristics of shrimp meat.In this study,we employed essential physicochemical composition determination,texture analysis,sensory evaluation,an electronic tongue assay,and UHPLC-Q Exactive-MS/MS metabolomics to investigate changes in the edible quality and metabolites of the meat of Metapenaeus ensis meat subjected to different thermal processing procedures(air frying,boiling,frying,drying).A total of 79 key differentially abundant metabolites affecting the eating quality of shrimp were identified.The different metabolites were significantly correlated with the color,meat quality,pH value,and nutritional components of the shrimp(p<0.05).The primary metabolites affecting shrimp flavour were AMP,D-pyroglutamic acid,succinic acid,and benzoic acid.The flavour richness and sensory evaluation scores of shrimp e-tongues subjected to air frying were the highest.Purines and heterocyclic amines produced in the boiling treatment group are the least harmful and healthiest heat treatment methods.Drying treatment is the most nutritious heat treatment method for ensuring flavour.This study clarified the molecular mechanism of the quality change in shrimp meat after heat treatment.This study provides a theoretical basis for optimizing and selecting Metapenaeus ensis processing technology.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.81200477)
文摘Objective To investigate the effect of FTY720-treated immature bone marrow-derived dendritic cells（BMDCs） on the embryo resorption rate in the CBA/J× DBA/2 abortion mouse model.Methods The dendritic cells（DCs） were derived from bone marrow of DBA/2 mice, and then co-cultured with FTY720. The abortion mouse models were established by mating female CBA/J mice with DBA/2 mice. Via the CBA/J×DBA/2 abortion mouse model, six groups were established, group A： normal pregnancy model; group B： abortion mouse model with no treatment; group C： abortion mouse model injected with DC culture medium（DCCM）; group D： abortion mouse model injected with DC; group E： abortion mouse model injected with FTY720; group F： abortion model mouse injected with FTY720-DC. The differences were compared in the embryo resorption rates of the CBA/J ×DBA/2 abortion mouse model treated with FTY720-DC or different controls observed on gestation day 12 to 14, and then the microenvironment in murine pregnancy was investigated.Results The embryo resorption rate was statistically significantly decreased in group D and group E when they compared with group B and group C（P〈0.05, respectively）.Furthermore, the embryo resorption rate in group F showed a statistically significant decrease when compared with the other groups except group A（P〈0.01）. These resultssuggest that FTY720-DCs possess a notable advantage over DCs or FTY720 in reducing the embryo resorption rate of the abortion mouse model. The percentage of Th17（IL-17＋CD4＋T cells） in peripheral blood mononuclear cell（PBMC） in the abortion mouse model was 4.35%±0.34% before treated with FTY720-DC, and was1.34%±0.28% after treated with FTY720-DC（P〈0.01）. The percentage of Tregs（CD4~＋CD25~＋Foxp3~＋T cells） in PBMC was significantly increased in group F（8.35%±1.80%） as compared with group B（2.68%±0.65%）（P〈0.01）.Conclusion Adoptive transfer of FTY720-DC can statistically significantly reduce the embryo resorption rate in the CBA/J×DBA/2 abortion mouse model. The lower embryo resorption rate in the FTY720-DC treated abortion mouse model may be caused by the imbalance of Treg/Th17.
基金the National Natural Science Foundation of China(Nos.22075105 and 51573204)National Science Foundation of Shandong Province(No.ZR2018ZB0315)+1 种基金H.Zhang thanks the financial support from the National Natural Science Foundation of China(No.51803230)Prof.J.Wang thanks the financial support from the Opening Project of Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education,Jianghan University.The authors thank Dr.Chunming Yang for GIWAXS tests and beamline BL16B1(Shanghai Synchrotron Radiation Facility)for providing beam time.
文摘A series of copolymers of thiazoloisoindigo (Tzll) with different chalcogenophene trimers were synthesized to systematicllyinvestigate the chalcogen effect on their charge transport propertes.When only the middlethiophene ring of terthiphene(T-T-T)is replaced byheavier chalcogenophenes,a preference(expressed by the ratio of μe/μh)towards electron transport was observed descending from T-T-Tto T-Se-Tthen to T-Te-T(Se and Te stand for selenophene and tellurophene,respectively).On the other hand,with the increased number of heavierchalcogenophenes,a preference toward hole transport was observed descending from Se-T-Se to Se-Se-se then to Se-Te-Se.This phenomenon iswellexplained by the balance between the aromatic resonance energy of the chalcogenophenes and the electronegativity of the chalcogens.Specifically,P(TZll-T-Se-T)displayed relatively balanced ambipolar property(μh^(max)andμe^(max) of 3.77 and 1.59 cm^(2)·v^(-1)·s^(-1)with aμe/μh of 0.42).while P(Tll-Se-Te-Se)exhibited the best preference to hole transfer with a u.u,of 0.09.P(Tzll-T-Te-T)exhibited the best preference to electrontransfer with aμe/μl,of 16 and theμe^(max)of 0.64 cm^(2)·v^(-).s^(-1)which is the highest electron mobility among the known conjugated polymerscontaining tellurophenes.
文摘目的探讨结晶紫中性红胆盐琼脂(violet red bile agar,VRBA)配制时,用高压灭菌法代替煮沸法的可行性。方法将大肠菌群的5种标准菌株用煮沸3次、121℃高压灭菌15min和115℃高压灭菌15min后,在VRBA分别培养,观察菌株成长的差异性;同时做目标菌生长率定量测试和非目标菌的定性测试。结果两种温度高压灭菌后,VRBA培养基和煮沸法处理的VRBA培养基培养的菌株成长、目标菌生长率P_R差异均无统计学意义(P值均>0.05)。肺炎克雷伯菌的生长率P_R<0.70,其余菌株的生长率P_R均>0.70。非目标菌的生长指数G均为0。结论 121℃、15min灭菌处理VRBA更方便实验室批量配制培养基和简化实验操作,提高工作效率。推荐配制VRBA时使用高压灭菌法代替煮沸法。VRBA不适用于分离肺炎克雷伯菌。
基金supported by the National Natural Science Foundation of China (Nos.22102086 and 22075105)the start-up funding from Jianghan University。
文摘Developing new polymeric semiconductors with excellent device performance is essential for organic electronics. Herein, we synthesized two new thiazoloisoindigo(Tz II)-based polymers, namely, P(Tz II-d Th-d Th) and P(Tz II-d Th-d Tz), by copolymerizing thiophene-flanked Tz II with bithiophene and bithiazole, respectively. Owing to the more electron-deficient nature of bithiazole than bithiophene, P(Tz II-d Th-d Tz)possesses deeper LUMO/HOMO levels of-3.45/-5.47 e V than P(Tz II-d Th-d Th)(-3.34/-5.32 e V). The organic field-effect transistor(OFET) devices based on P(Tz II-d Th-d Th) exhibited p-type behaviors with an average hole mobility value as high as 1.43 cm^(2)·V^(-1)·s^(-1), while P(Tz II-d Th-d Tz)showed typical ambipolar characteristics with average hole and electron mobilities of 0.38 and 0.56 cm^(2)·V^(-1)·s^(-1). In addition, we compared the performances of both polymers with other Tz II-based polymers reported in our previous work, and showed that the charge carrier polarity can be manipulated by adjusting the number of the thiophene units between the acceptor unit. As the increase of the number of thiophene rings,charge carrier polarity shifts from electron-dominated ambipolar transport to hole-dominated ambipolar transport and then to unipolar hole transport in OFETs, which provides an effective molecular design strategy for further optimization of polymer OFET performance.
基金Key Medical Speciality (Obstetrics) of Jiading District, Shanghai (JDYXZDZK-8)
文摘Objective: To investigate the risk factors of macrosomia and to predict the risk of macrosomia so as to reduce the incidence of macrosomia. Methods: A total of 2063 pregnant women who met the inclusion criteria were selected as the subjects from February 2016 to April 2017 in Jiading District Maternal and Child Health Hospital of Shanghai and Pudong New Area Maternal and Child Health Hospital. According to the birth weight of the neonates, the neonates were divided into the macrosomia group (neonatal weight > 4000 g, n=125) and the normal infant group (2500 g < neonatal weight < 4000 g, n=1938).The general data of age, number of pregnant women, BMI before pregnancy, gestational diabetes mellitus, glucose tolerance, weight gain during pregnancy, birth weight and gestational week were compared between the two groups. Multivariate logistic regression was used to analyze the risk factors of macrosomia. Results: ①There were significant differences in BMI, glucose tolerance, fasting blood sugar, weight gain in the second trimester, weight gain in the third trimester, birth weight and gestational week between the two groups (P<0.05). ②Single factor analysis showed that pre-pregnancy BMI, gestational week at first diagnosis, fasting blood glucose tolerance, weight gain in the second trimester, weight gain in the third trimester, gestational week and birth weight were the influencing factors of macrosomia (P<0.05). ③Multi-factor analysis showed that gestational weeks, gestational diabetes, fasting glucose tolerance and weight growth in the second trimester were the main factors affecting the production of macrosomia, among which gestational diabetes was the protective factor, while gestational weeks, fasting glucose tolerance and weight growth in the second trimester were the risk factors. Conclusion: The high risk factors for macrosomia are gestational weeks, glucose tolerance, fasting blood sugar and weight gain in the second trimester of pregnancy.We should strengthen regular obstetric examination, health care during pregnancy, reasonable diet and proper exercise, and strictly control the weight gain during the second trimester of pregnancy. At the same time, we should monitor blood sugar in time so as to reduce the incidence of macrosomia.
基金supported by the Applied Basic Research Foundation of Yunnan Province(202201AW070017,202401 AS070091)Yunnan Province-City Integration Project(202302AN360002)+1 种基金Yunnan Ten Thousand People Plan for Young Top Talents Project(YNWR-QNBJ-2018-378,YNWRQNBJ-2020-131)Yunnan Innovation Team of Food and Drug Homologous Functional Food(202305AS350025)。
文摘Most of the Pleurotus eryngii(PE)are consumed after cooking.The aim of this study was to investigate the metabolites and flavour changes of PE under four cooking methods,namely,air frying,boiling,frying and steaming,by using metabolomics techniques,and to screen the components for network prediction of components that have the potential to prevent obesity,and to explore the underlying mechanisms.We used the UHPLC-Q-Exactive-MS/MS metabolomics method to identify and screen 35 metabolites as the major chemical components of PE,including lipids and lipid-like molecules,organic acids and derivatives,nucleosides,nucleotides,analogues,and other small molecules.In addition,a network pharmacology approach was used to identify targets such as STAT3,CASP3,and JUN were identified as playing important roles in the network.The results were validated by molecular docking.This study provides a basis for the optimization of cooking methods for PE and offers new insights for future research.
基金supported the Applied Basic Research Foundation of Yunnan Province(202001AT070103 and 202201AW070017)the Yunnan Province-City Integration Project(202302AN360002)+1 种基金the Yunnan Ten Thousand People’s Plan for Young Top Talents Project(YNWR-QNBJ-2018-378 and YNWR-QNBJ-2020-131)the Yunnan Innovation Team of Food and Drug Homologous Functional Food(202305AS350025).
文摘Thermal processing significantly impacts the quality and characteristics of shrimp meat.In this study,we employed essential physicochemical composition determination,texture analysis,sensory evaluation,an electronic tongue assay,and UHPLC-Q Exactive-MS/MS metabolomics to investigate changes in the edible quality and metabolites of the meat of Metapenaeus ensis meat subjected to different thermal processing procedures(air frying,boiling,frying,drying).A total of 79 key differentially abundant metabolites affecting the eating quality of shrimp were identified.The different metabolites were significantly correlated with the color,meat quality,pH value,and nutritional components of the shrimp(p<0.05).The primary metabolites affecting shrimp flavour were AMP,D-pyroglutamic acid,succinic acid,and benzoic acid.The flavour richness and sensory evaluation scores of shrimp e-tongues subjected to air frying were the highest.Purines and heterocyclic amines produced in the boiling treatment group are the least harmful and healthiest heat treatment methods.Drying treatment is the most nutritious heat treatment method for ensuring flavour.This study clarified the molecular mechanism of the quality change in shrimp meat after heat treatment.This study provides a theoretical basis for optimizing and selecting Metapenaeus ensis processing technology.
