Background Increased backfat thickness of sows in early gestation is negative to reproductive performance.Endometrial receptivity is an important determinant of reproductive success,but it is unclear whether the effec...Background Increased backfat thickness of sows in early gestation is negative to reproductive performance.Endometrial receptivity is an important determinant of reproductive success,but it is unclear whether the effect of sow backfat thickness on litter size is associated with endometrial receptivity and whether melatonin treatment may have benefits.The present study seeks to answer these questions through in vitro and in vivo investigations.Results Excessive lipid deposition and lower melatonin levels in the uterus are detrimental to endometrial receptivity and embryo implantation in high backfat thickness sows.In cells treated with melatonin,the MT2/PI3K/LIF axis played a role in reducing lipid accumulation in porcine endometrial epithelium cells and improved endometrial receptivity.Furthermore,we found a reduction of lipids in the uterus after eight weeks of intraperitoneal administration of melatonin to HFD mice.Notably,melatonin treatment caused a significant reduction in the deposition of endometrial collagen,an increase in the number of glands,and repair of the pinopode structure,ultimately improving endometrial receptivity,promoting embryo implantation,and increasing the number of litter size of mice.Conclusions Collectively,the finding reveals the harmful effects of high backfat thickness sows on embryo implantation and highlight the role of melatonin and the MT2/PI3K/LIF axis in improving endometrial receptivity by enhancing metabolism and reducing the levels of uterine lipids in obese animals.展开更多
目的:分析577nm微脉冲激光(SML)光凝联合玻璃体腔注射康柏西普治疗增殖性糖尿病视网膜病变(PDR)患者玻璃体切除术后发生糖尿病性黄斑水肿(DME)的临床效果。方法:回顾性分析2019-01/2021-06就诊于我院经玻璃体切除治疗的PDR患者,术后发生...目的:分析577nm微脉冲激光(SML)光凝联合玻璃体腔注射康柏西普治疗增殖性糖尿病视网膜病变(PDR)患者玻璃体切除术后发生糖尿病性黄斑水肿(DME)的临床效果。方法:回顾性分析2019-01/2021-06就诊于我院经玻璃体切除治疗的PDR患者,术后发生DME患者29例30眼。根据治疗方式不同分为两组,单纯注射组患者14例14眼行玻璃体腔注射康柏西普,联合治疗组患者15例16眼行黄斑区577nm微脉冲激光光凝联合玻璃体腔注射康柏西普。比较两组患者治疗前及治疗6、12mo最佳矫正视力(BCVA)、黄斑中心凹视网膜厚度(CMT)的变化,以及治疗前、治疗12mo多焦视网膜电流图(mfERG)的变化。结果:两组患者治疗6、12mo BCVA(LogMAR)均较术前改善,CMT均较术前下降(均P<0.001)。单纯注射组治疗前及治疗6、12mo BCVA(LogMAR)、CMT与联合治疗组比较均无差异(均P>0.05)。治疗12mo单纯注射组较联合治疗组振幅略低(23.02±3.13 vs 26.50±3.33μV/deg2),潜伏期延长(38.75±1.62 vs 34.21±3.06ms)(均P≤0.001)。随访12mo,单纯注射组注射康柏西普8.14±1.46次,联合治疗组5.05±1.51次(P<0.05)。结论:577nm微脉冲激光光凝联合玻璃体腔注射康柏西普可有效缓解玻璃体切除术后DME患者的黄斑水肿、提高BCVA,并能改善黄斑区视功能,有效减少康柏西普注射次数。展开更多
BACKGROUND The application of perioperative disinfection and isolation measures to patients undergoing gastrointestinal surgery with postoperative infection can provide a data reference for reducing the postoperative ...BACKGROUND The application of perioperative disinfection and isolation measures to patients undergoing gastrointestinal surgery with postoperative infection can provide a data reference for reducing the postoperative infection rate,improving post-operative biochemical markers,and enhancing postoperative recovery outcomes.AIM To explore the effectiveness of perioperative disinfection and isolation measures in controlling postoperative infection following gastrointestinal surgery.It also sought to compare infection rates and biochemical markers between the obser-vation and control groups and evaluate the impact of disinfection and isolation measures on reducing postoperative complications.METHODS A retrospective analysis was conducted.Ninety-six patients who underwent gastrointestinal surgery between January 2022 and December 2023 were selected and divided into an observation group and a control group,with 48 cases in each.The observation group received disinfection and isolation measures during the perioperative period,whereas the control group received standard nursing care.The incidence of infection,white blood cell count,C-reactive protein levels,hemoglobin levels,and liver function markers(alanine aminotransferase,aspartate aminotransferase,creatinine,and blood urea nitrogen)were monitored postoperatively in both groups.RESULTS The postoperative infection rate in the observation group was significantly lower than that in the control group(P<0.05).White blood cell and C-reactive protein levels decreased significantly after surgery in the observation group and were significantly lower than those in the control group(P<0.05).Alanine aminotransferase,aspartate aminotransferase,creatinine,and blood urea nitrogen levels in the observation group were lower than those in the control group on postoperative days 1 and 3,showing a significant difference(P<0.05).CONCLUSION Perioperative disinfection and isolation measures effectively reduce postoperative infection rates in gastrointestinal surgery patients and improve biochemical markers,thereby enhancing recovery outcomes.This study provides a valuable basis for postoperative infection control and has significant clinical applications.展开更多
Cronobacter spp.has strong resistance to desiccation and high permeability in Enterobacteriaceae,and powdered infant formula(PIF)is one of the main contamination routes.In recent years,the contamination of Cronobacter...Cronobacter spp.has strong resistance to desiccation and high permeability in Enterobacteriaceae,and powdered infant formula(PIF)is one of the main contamination routes.In recent years,the contamination of Cronobacter spp.in PIF incidents occurs from time to time,causing infant serious diseases or death.In this investigation,matrix-assisted laser desorption/ionization time of flight mass spectrometry was used to identify the phenotypes of 35 Cronobacter strains isolated from PIF and its processing environment.Subsequently,the isolates were evaluated for drying and osmotic pressure tolerance.The results showed that the deactivation rate of the strains ranged from 9.01%to 77.57%,and the highest osmotic pressure condition the strains could tolerate was 6 g/100 mL Na Cl.In addition,there was a positive correlation between biofilm formation ability and desiccation resistance.Combined with transcriptomics,Cronobacter spp.could activate biofilm synthesis,produce more trehalose,accumulate betaine and electrolytes to stabilize intracellular structure under the two treatment conditions.A total of 31 and 43 genes were found related to desiccation and permeability resistance,respectively.And some genes(cysM,thuF,ycjO,etc.)were found to be associated with two tolerances for the first time.展开更多
基金supported by the China Agriculture Research System(CARS-35-PIG)the National Natural Science Foundation of China(32272847,U22A20516)+1 种基金the National Key Research and Development Program of China(No.2021YFF1000602)the Key Research and Development Program of Shaanxi Province(No.2022ZDLNY01–04)。
文摘Background Increased backfat thickness of sows in early gestation is negative to reproductive performance.Endometrial receptivity is an important determinant of reproductive success,but it is unclear whether the effect of sow backfat thickness on litter size is associated with endometrial receptivity and whether melatonin treatment may have benefits.The present study seeks to answer these questions through in vitro and in vivo investigations.Results Excessive lipid deposition and lower melatonin levels in the uterus are detrimental to endometrial receptivity and embryo implantation in high backfat thickness sows.In cells treated with melatonin,the MT2/PI3K/LIF axis played a role in reducing lipid accumulation in porcine endometrial epithelium cells and improved endometrial receptivity.Furthermore,we found a reduction of lipids in the uterus after eight weeks of intraperitoneal administration of melatonin to HFD mice.Notably,melatonin treatment caused a significant reduction in the deposition of endometrial collagen,an increase in the number of glands,and repair of the pinopode structure,ultimately improving endometrial receptivity,promoting embryo implantation,and increasing the number of litter size of mice.Conclusions Collectively,the finding reveals the harmful effects of high backfat thickness sows on embryo implantation and highlight the role of melatonin and the MT2/PI3K/LIF axis in improving endometrial receptivity by enhancing metabolism and reducing the levels of uterine lipids in obese animals.
文摘目的:分析577nm微脉冲激光(SML)光凝联合玻璃体腔注射康柏西普治疗增殖性糖尿病视网膜病变(PDR)患者玻璃体切除术后发生糖尿病性黄斑水肿(DME)的临床效果。方法:回顾性分析2019-01/2021-06就诊于我院经玻璃体切除治疗的PDR患者,术后发生DME患者29例30眼。根据治疗方式不同分为两组,单纯注射组患者14例14眼行玻璃体腔注射康柏西普,联合治疗组患者15例16眼行黄斑区577nm微脉冲激光光凝联合玻璃体腔注射康柏西普。比较两组患者治疗前及治疗6、12mo最佳矫正视力(BCVA)、黄斑中心凹视网膜厚度(CMT)的变化,以及治疗前、治疗12mo多焦视网膜电流图(mfERG)的变化。结果:两组患者治疗6、12mo BCVA(LogMAR)均较术前改善,CMT均较术前下降(均P<0.001)。单纯注射组治疗前及治疗6、12mo BCVA(LogMAR)、CMT与联合治疗组比较均无差异(均P>0.05)。治疗12mo单纯注射组较联合治疗组振幅略低(23.02±3.13 vs 26.50±3.33μV/deg2),潜伏期延长(38.75±1.62 vs 34.21±3.06ms)(均P≤0.001)。随访12mo,单纯注射组注射康柏西普8.14±1.46次,联合治疗组5.05±1.51次(P<0.05)。结论:577nm微脉冲激光光凝联合玻璃体腔注射康柏西普可有效缓解玻璃体切除术后DME患者的黄斑水肿、提高BCVA,并能改善黄斑区视功能,有效减少康柏西普注射次数。
文摘BACKGROUND The application of perioperative disinfection and isolation measures to patients undergoing gastrointestinal surgery with postoperative infection can provide a data reference for reducing the postoperative infection rate,improving post-operative biochemical markers,and enhancing postoperative recovery outcomes.AIM To explore the effectiveness of perioperative disinfection and isolation measures in controlling postoperative infection following gastrointestinal surgery.It also sought to compare infection rates and biochemical markers between the obser-vation and control groups and evaluate the impact of disinfection and isolation measures on reducing postoperative complications.METHODS A retrospective analysis was conducted.Ninety-six patients who underwent gastrointestinal surgery between January 2022 and December 2023 were selected and divided into an observation group and a control group,with 48 cases in each.The observation group received disinfection and isolation measures during the perioperative period,whereas the control group received standard nursing care.The incidence of infection,white blood cell count,C-reactive protein levels,hemoglobin levels,and liver function markers(alanine aminotransferase,aspartate aminotransferase,creatinine,and blood urea nitrogen)were monitored postoperatively in both groups.RESULTS The postoperative infection rate in the observation group was significantly lower than that in the control group(P<0.05).White blood cell and C-reactive protein levels decreased significantly after surgery in the observation group and were significantly lower than those in the control group(P<0.05).Alanine aminotransferase,aspartate aminotransferase,creatinine,and blood urea nitrogen levels in the observation group were lower than those in the control group on postoperative days 1 and 3,showing a significant difference(P<0.05).CONCLUSION Perioperative disinfection and isolation measures effectively reduce postoperative infection rates in gastrointestinal surgery patients and improve biochemical markers,thereby enhancing recovery outcomes.This study provides a valuable basis for postoperative infection control and has significant clinical applications.
基金supported by the Joint Funds of the National Natural Science Foundation of China(U21A20272)。
文摘Cronobacter spp.has strong resistance to desiccation and high permeability in Enterobacteriaceae,and powdered infant formula(PIF)is one of the main contamination routes.In recent years,the contamination of Cronobacter spp.in PIF incidents occurs from time to time,causing infant serious diseases or death.In this investigation,matrix-assisted laser desorption/ionization time of flight mass spectrometry was used to identify the phenotypes of 35 Cronobacter strains isolated from PIF and its processing environment.Subsequently,the isolates were evaluated for drying and osmotic pressure tolerance.The results showed that the deactivation rate of the strains ranged from 9.01%to 77.57%,and the highest osmotic pressure condition the strains could tolerate was 6 g/100 mL Na Cl.In addition,there was a positive correlation between biofilm formation ability and desiccation resistance.Combined with transcriptomics,Cronobacter spp.could activate biofilm synthesis,produce more trehalose,accumulate betaine and electrolytes to stabilize intracellular structure under the two treatment conditions.A total of 31 and 43 genes were found related to desiccation and permeability resistance,respectively.And some genes(cysM,thuF,ycjO,etc.)were found to be associated with two tolerances for the first time.
