Cooperative Effects of FOXL2 with the Members of TGF-β Superfamily on FSH Receptor mRNA Expression and Granulosa Cell Proliferation from Hen Prehierarchical Follicles.

Forkhead box L2 (FOXL2) is a member of the forkhead nuclear factor 3 gene family and plays an essential role in ovarian growth and maturation in mammals. However, its potential effects and regulative mechanism in development of chicken ovarian prehierarchical follicles remain unexplored. In this study, the cooperative effects of FOXL2 with activin A, growth differentiation factor-9 (GDF9) and follistatin, three members of the transforming growth factor beta (TGF-β) superfamily that were previously suggested to exert a critical role in follicle development was investigated.

[Risk factors of irritable bowel syndrome in adolescents in China].

Objective: To explore the risk factors for irritable bowel syndrome (IBS) among school adolescents in China.

Method: A stratified, randomized study by cluster sampling was conducted, which recruited 51,956 students from high and primary schools in Chinese cities. All students were requested to fill in a questionnaire.

[Meta-analysis of energetic nutritional intervention for stable chronic obstructive pulmonary disease patients].

Objective: To conduct a meta-analysis of randomized controlled trials (RCTs) to clarify whether nutritional intervention (caloric supplementation for at least 2 weeks) can improve the nutritional status and the pulmonary functions, while reduce the frequency of acute exacerbation or mortality of patients with stable COPD.

Methods: RCTs were identified from databases including Medline and Embase, and a hand search for references was also conducted. Two reviewers independently selected the trials for inclusion, assessed the methodological quality of each study, and extracted the data Within each trial and for each outcome, an effect size was calculated.

[An epidemiologic study of functional bowel disorders in adolescents in China].

Objective: To explore the most common bowel frequency and the prevalence rates of functional bowel disorders among adolescents in China.

Methods: A questionnaire survey was conducted among 51,956 students from high and primary schools in 6 Chinese cities distributed in the whole China collected by stratified, randomized, cluster sampling to study the epidemiology of functional bowel disorders.

Results: (1) 88.

[An epidemiologic study of irritable bowel syndrome among adolescents in China].

Objective: To explore the prevalence of irritable bowel syndrome (IBS) and its distribution characteristics among adolescents in China.

Methods: A stratified and randomized study by cluster sampling was employed, the study recruited 51 956 students from high and primary schools in different Chinese cities. All students were requested to fill in a questionnaire.