This cross-sectional study investigated the epidemiology and risk factors associated with orthostatic hypotension (OH) and its severity in older adults residing in the Jizhou community of Tianjin and the Jimei community of Xiamen. The study, conducted from March to September 2019, involved adults aged over 60. A comprehensive questionnaire survey was administered, resulting in the enrolment of 4383 older adults.
View Article and Find Full Text PDFBackground: The prevalence of dementia can vary by region and there is a cluster of more than 10 modifiable risk factors for dementia. Therefore, this study aimed to determine the prevalence of dementia in Xiamen, China, and identify independent risk factors associated with dementia.
Methods: This cluster sampling-based cross-sectional study enrolled elder adults from Xiamen City and conducted face-to-face interviews between April and August 2019.
Purpose: To investigate the epidemiological characteristics of constipation in people aged 65 years and older in several regions of China.
Patients And Methods: A cross-sectional study based on a cluster sampling design was conducted in four cities of China: Tianjin, Xiamen, Cangzhou and Harbin. A total of 5,222 cases (age ≥ 65 years) were recruited, and the survey was conducted centralized and household questionnaires that included the following: basic demographic characteristics such as sex, age, education, marital status, living status and occupation; social activities; duration of sleep at night; duration of menstruation and delivery times (in females); and if the participant had constipation symptoms, the severity of constipation.
In recent years, the increasing incidence of morbidity of brain stroke has made fast and accurate segmentation of lesion areas from brain MRI images important. With the development of deep learning, segmentation methods based on the computer have become a solution to assist clinicians in early diagnosis and treatment planning. Nevertheless, the variety of lesion sizes in brain MRI images and the roughness of the boundary of the lesion pose challenges to the accuracy of the segmentation algorithm.
View Article and Find Full Text PDFFrequent/urgent urination is an event of multifactorial origin where involuntary leakage of urine occurs. Epidemiological study of this condition is of high importance due to its negative impact on the psychological, physical, and social well-being of the victims. This cross-sectional study aimed to investigate the prevalence of frequent/urgent urination in older adults in China.
View Article and Find Full Text PDFBackground: Intracerebral hemorrhage (ICH) is one of the most common strokes, especially in developing countries. Recently, level of non-high-density lipoprotein cholesterol (non-HDL-C) has been implicated to be a better indicator for several lipid-related disorders. However, whether non-HDL-C can be used as an indicator for the risk of cognitive impairment in ICH patients remains to be elucidated.
View Article and Find Full Text PDFActa Neurol Scand
October 2019
Objective: This study primarily aims to explore the value of combining the measurement of plasma α-synuclein oligomer levels with enhanced T2 star-weighted angiography (ESWAN) in the early diagnosis of Parkinson's disease.
Methods: Sixty patients with early Parkinson's disease and 30 normal adults, with similar ages and genders, were enrolled in the study. Their levels of plasma α-synuclein oligomers were measured, and ESWAN was performed.
Sheng Wu Gong Cheng Xue Bao
January 2015
Cell growth profiles were evaluated in shake-flask culture to improve sclareol production by the engineered yeast strain Saccharomyces cerevisiae S7. Product formation was tightly coupled with cell growth. High cell density cultures were performed with different carbon sources using a dissolved oxygen level feedback-control strategy in a 3 L bioreactor.
View Article and Find Full Text PDFWith ever-increasing culture of yeasts for the production of biofuels and other metabolites, spent yeast cell mass exceeds its traditional market demands. Yeast cell mass contains glucose, mannose and other sugars that may be utilized for microbial culture. Here we demonstrated that the oleaginous yeast Lipomyces starkeyi could utilize glucose and mannose simultaneously for lipid production.
View Article and Find Full Text PDFDue to the laborious and scale-up limitation we have developed a simple system named "root absorption" to express foreign proteins in plants successfully. It has been shown that GFP was expressed in tobacco plants by root absorbing the Agrobacterium suspension containing TMV-based P35S-30B-GFP vector. Various factors influencing the gene expression were studied including Agrobacterium cell density, seedling age, plant materials and inoculation conditions.
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