The relationship between physical activity and the severity of menopausal symptoms: a cross-sectional study.

Objective: To investigate the relationship between physical activity and the severity of menopausal symptoms in middle-aged women in northwest China.

Methods: This was a cross-sectional online survey study. Using a snowball sampling method, 468 women aged 45 to 60 were recruited from northwest China and their demographic information was collected.

HER2-targeted regimens after prior trastuzumab for patients with HER2-positive unresectable, locally advanced or metastatic breast cancer: a network meta-analysis of randomized controlled trials.

Background: Several human epidermal growth factor receptor 2 (HER2)-targeted regimens (anti-HER2 target agent combined chemotherapy) have been introduced for the treatment of HER2-positive locally advanced or metastatic breast cancer progressed after trastuzumab. We therefore conducted a network meta-analysis to compare and rank HER2-targeted regimens in this population after trastuzumab therapy.

Methods: The electronic databases of PubMed, EmBase, Cochrane Central Register of Controlled Trials, and the websites of http://clinicaltrials.

Microbiota Analysis of Eggshells in Different Areas and During Different Storage Time by Non-cultural Methods.

This study is to investigate and characterize the microbiota composition on eggshells from 3 different areas of Shaanxi province (Yulin, Hanzhong and Xi'an). The eggs were stored at 25 °C for 56 days and bacterial samples were collected from eggshells on day 0, 14, 28, 42 and 56. Denaturing gradient gel electrophoresis and high-throughput sequencing of 16S rRNA hypervariable region V3-V4 were performed.

Impaired ghrelin response after high-fat meals is associated with decreased satiety in obese and lean Chinese young adults.

Ghrelin and peptide tyrosine tyrosine (PYY) are known to affect appetite and body weight, but the acute effects of fat-rich and carbohydrate-rich meals on plasma ghrelin, PYY response, and appetite remain unclear. We hypothesized that obese individuals had impaired postprandial ghrelin and PYY response based on macronutrient content of meals, affecting appetite and energy intake. We conducted a randomized crossover trail comparing fasting ghrelin and PYY concentrations, postprandial ghrelin and PYY responses, and subjective appetite in 15 obese and 12 lean Chinese young adults after they consumed isocaloric high-carbohydrate [HC; 88% energy carbohydrate, 4% energy fat, 8% energy protein] and high-fat (HF; 25% energy carbohydrate, 71% energy fat, 4% energy protein) meals.

[Relationship of ghrelin and obesity induced by high-fat diet in rats].

Objective: To explore the effects of expression and secretion of ghrelin on high-fat diet induced obesity in rats.

Methods: Forty male SD rats were randomly divided into high-fat diet group (n = 30) and chow fed control group (n = 10), and given either high-fat diet or chow for twelve weeks. Then the high-fat diet group was subdivided into dietary induced obesity (DIO) and dietary induced obesity resistant (DIR) group according to the final body weight.

[Relation between peptide YY 3-36 and dietary induced obesity resistant rats].

Objective: To study the plasma concentration of peptide YY3 - 36 (PYY3-36) and the expression levels of PYY mRNA of ileum and colon in dietary induced obesity (DIO) and dietary induced obesity resistant (DIO-R) rats and the relation between PYY3-36 and DIO-R rats.

Methods: Thirty-six female SD rats were randomly divided into high-fat diet group (n = 27) and chow fed control group (n = 9), after 13 weeks of either a high-fat diet or chew fed diet, the high-fat diet group was subdivided into DIO and DIO-R group according to the final body weight. Weight gain, caloric intake, the concentration of PYY3-36 and the expression levels of PYY mRNA were measured and compared.