RESUMEN
Gut microbiota is composed of trillions of microorganisms inhabiting in the human gastrointestinal tract,profoundly influences many aspects of host physiology.The roles of gut microbiota have been investigated extensively in the gastrointestinal,endocrine,neurological,cardiovascular and immune systems.This article reviews the recent research progress on the function of microbes in healthy organisms,the common research methods for microbiota,and the roles of microbiota in rheumatic immune diseases.It is expected that gut microbiota would be a novel target of clinical diagnosis and treatment for rheumatic immune diseases.
RESUMEN
Objective To investigate the effect of abnormality Y chromosome and sperm quality on the clinical result of insisted reproductive technique (ART). Methods We retrospectively analyzed the effect of ab-normality Y chromosome and sperm quality on embryo quality/result of pregnancy of patients undergoing ART. In-fertile men with normality Y chromosome (n=436) and with abnormality Y chromosome (n =146) from Jan 2010 to Dec 2010 were enrolled in this study. The infertile men were divided into four groups: the normality Y chromo-some plus teratozoospermia group , the normality Y chromosome plus normal sperm quality group , the abnormality Y chromosome plus teratozoospermia group, the abnormality Y chromosome plus normal sperm quality group. Embryo quality and the results of clinic pregnancy outcome were analyzed among the four groups. Results Fertilization rate of the four groups was 73.4%, 69.0%, 70.9% and 68%, respectively (P < 0.05). No significant differences were found in thecleavage rate, optimal embryo rate and pregnancy outcome among the four groups. Conclusions Both abnormality Y chromosome length and teratozoospermia may be affect the fertility rate of the infertile men undergoing IVF/ICSI.