RESUMEN
Objective To investigate the current situation of treatment and control of hypertension among the elderly in Jiang’an District of Wuhan, and to analyze the relationship between body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR) and the treatment and control of hypertension. Methods A random sampling method was used to recruit 17,749 hypertension patients aged 65 and above who participated in free physical examinations for the elderly in Jiangan District. Relevant information was collected through questionnaire surveys and physical examinations in 2018. Logistic regression analysis was conducted to analyze the correlation between BMI, WC, WHtR and the treatment and control rate of hypertension. Results Among all elderly hypertension patients included in this study, 12,379 (69.74%) reported the treatment of hypertension, of which 6,055(48.91%) had their high blood pressure under control. After adjusting factors such as gender, age, and education level, etc., obesity (OR=1.698), central obesity (OR=1.445), and abnormal WHtR (OR=1.421) were the protective factors of the treatment of hypertension. Overweight (OR=0.843), obesity (OR=0.762) and high WHtR（OR=0.889）reduced the control rate of hypertension. There was no significant relationship between abdominal obesity and blood pressure control. Conclusion Overweight，obesity and high WHtR are the risk factors of hypertension control in the elderly. Weight management can therefore be a takeaway as a key intervention measure for hypertension management in the elderly.
RESUMEN
Objective Observe the fine distribution and morphologic feature of the intramural lymphatics in rats' rectum and to provide the morphological evidence for studying the mechanism of lymphous metastasis of rectum carcinoma.Methods The intramural lymphatics of rectum in rats were studied by light and electron microscopy to obtain some data regarding their fine distribution.Results The intramural capillary lymphatics of rats' rectum were observed in deep lamina propria of tunica membrane and the dermal papilla layer of anal pectin. The intramural capillary lymphatics and lymphatics were both observed in tela submucosa, reticular layer, hypodermis and intermuscular and serosa. The capillary lymphatics in rectums' wall have the similar ultrastructure feature to normal ones. Three kinds of endothelial cells junctions are overlapping-junctions, embedding-junctions and end-to-end-type junctions. About 21% of cell-junctions are opening types. There are normal organelles and many vesicals in the endothelial of capillary lymphatics. Conclusion The distribution of lymphatics in every layer of dentate line upwards are similar to other digestive tubes'. The distribution of lymphatics in anal pecten of rats' rectum are similar to cutis. The results show that big molecule substance and tissue hydrolysate are transporting mainly by opening-junction of endothelial cells and the vesicle system.