1.Effects of probiotics on intestinal microflora in very low birth weight infants on the 14th postnatal day
Hongping LI ; Liya MA ; Bin XIAO ; Duan MA ; Chunli ZHANG ; Chuanrui ZHU ; Yan HUANG ; Kelin XIAO
Chinese Journal of Neonatology 2017;32(4):264-268
Objective To establish the theoretical basis of the probiotic application among very low birth weight(VLBW) infants,the efficacy of probiotics on the gut microbiota of VLBW infants on the 14th postnatal day was studied.Method The VLBW infants admitted to BaoAn Maternal and Child Care Hospital from January 2015 to December 2015 were randomly assigned into probiotics group and placebo group.From the first feeding to corrected gestational age of 36 weeks,probiotics group was treated with a combination of Bifidobacterium and Lactobacillus while placebo group with placebo.Fecal samples were collected on the 1st and 14th postnatal day.Total bacterial DNA was extracted and sequenced using high-throughput 16S rRNA gene sequencing on MiSeq sequencing platform.Result A total of 21 VLBW infants were enrolled,9 in probiotics group and other 12 placebo group.No significant differences of clinical data existed between the two group (P > 0.05),The abundance and diversity of microflora (P > 0.05) on the first day between the two group were similar.Compared with placebo group,the relative abundance of Bifidobacterium and Lactobacillales in stool samples on the 14th day was significantly increased,while the Halomonas was significantly decreased.The relative abundance of the Shannon-index was increased,but without significant difference (P =0.16).Conclusion Enteral supplementation of probiotics in VLBW infants may increase probiotic bacterium and microflora diversity.
2.Quality of life and related factors among family members of tuberculosis patients.
Wei FENG ; Furong LIU ; Chuanrui MA ; Shengjie JU ; Liang SUN ; Lizhang CHEN
Journal of Central South University(Medical Sciences) 2013;38(10):1075-1079
OBJECTIVE:
To understand the quality of life and related factors among family members of tuberculosis patients and provide a reference for the improvement of their quality of life.
METHODS:
A total of 222 family members of tuberculosis patients at 4 tuberculosis hospitals in Changsha and 327 healthy controls were surveyed with structured questionnaire, the short version of the WHO quality of life scale (WHOQOL-BREF).
RESULTS:
The mean score of the family members of tuberculosis patients in the psychological domain, physical domain and environmental domains was lower than that of the control group (P<0.01). Multiple linear regression showed that gender, age, monthly income, educational level, patient condition and knowledge of tuberculosis prevention and treatment were the factors affecting their quality of life.
CONCLUSION
The quality of life of the family members of tuberculosis patients is lower than that of the control group.
Family Health
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Humans
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Quality of Life
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Surveys and Questionnaires
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Tuberculosis
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psychology
3.SUMO1 regulates post-infarct cardiac repair based on cellular heterogeneity
Zhihao LIU ; Xiaozhi LIU ; Li LIU ; Ying WANG ; Jie ZHENG ; Lan LI ; Sheng LI ; Han ZHANG ; Jingyu NI ; Chuanrui MA ; Xiumei GAO ; Xiyun BIAN ; Guanwei FAN
Journal of Pharmaceutical Analysis 2023;13(2):170-186
Small ubiquitin-related modifier(SUMOylation)is a dynamic post-translational modification that maintains cardiac function and can protect against a hypertrophic response to cardiac pressure overload.However,the function of SUMOylation after myocardial infarction(MI)and the molecular details of heart cell responses to SUMO1 deficiency have not been determined.In this study,we demonstrated that SUMO1 protein was inconsistently abundant in different cell types and heart regions after MI.However,SUMO1 knockout significantly exacerbated systolic dysfunction and infarct size after myocardial injury.Single-nucleus RNA sequencing revealed the differential role of SUMO1 in regulating heart cells.Among cardiomyocytes,SUMO1 deletion increased the Nppa+Nppb+Ankrd1+cardiomyocyte subcluster pro-portion after MI.In addition,the conversion of fibroblasts to myofibroblasts subclusters was inhibited in SUMO1 knockout mice.Importantly,SUMO1 loss promoted proliferation of endothelial cell subsets with the ability to reconstitute neovascularization and expressed angiogenesis-related genes.Computational analysis of ligand/receptor interactions suggested putative pathways that mediate cardiomyocytes to endothelial cell communication in the myocardium.Mice preinjected with cardiomyocyte-specific AAV-SUMO1,but not the endothelial cell-specific form,and exhibited ameliorated cardiac remodeling following MI.Collectively,our results identified the role of SUMO1 in cardiomyocytes,fibroblasts,and endothelial cells after Ml.These findings provide new insights into SUMO1 involvement in the patho-genesis of MI and reveal novel therapeutic targets.