Chromone-3-carbonitrile has been extensively studied in a panel of high-value transformations. However, existing protocols for the synthesis of this scaffold are often constrained by the structure of the starting materials and harsh conditions. To address these issues, we present a novel strategy that HFIP (hexafluoroisopropanol)-driven strategy, enables chromone-3-carbonitriles synthesis without undesirable side reactions.
View Article and Find Full Text PDFZhongguo Dang Dai Er Ke Za Zhi
May 2024
We sequenced and analyzed the complete mitochondrial genome of and explored the phylogenetic relationships among Sicydiinae based on mitochondrial genome sequences. The complete mitochondrial genome sequence of was determined using the Illumina HiSeq X Ten sequencing platform, and the gene structural characteristics and base composition were analyzed. Based on the mitochondrial genome sequences of 28 Sicydiinae species published in GenBank and mitochondrial protein-coding genes (PCGs), (Gobionellinae) was selected as an outgroup to construct phylogenetic trees of Sicydiinae using the maximum likelihood and Bayesian inference methods.
View Article and Find Full Text PDFWith the improvement of people's quality of life, various cardiovascular diseases are the most common diseases. Therefore, the main site of disease atherosclerosis is blood vessels, so we can see that its flow rate has obvious changes. Through the analysis of coronary heart disease, this paper studies the relationship between coronary artery disease and cardiovascular disease, which is helpful to evaluate the risk of disease, and also provides the best prevention and treatment plan to overcome cardiovascular disease.
View Article and Find Full Text PDFBMC Public Health
December 2022
Background: Growth chart is a valuable clinical tool to monitor the growth and nutritional status of children. A growth chart widely used in China is based on the merged data sets of national surveys in 2005. We aimed to establish an up-to-date, complete growth curve for urban Chinese children and adolescents with a full range of ages.
View Article and Find Full Text PDFObesity (Silver Spring)
September 2022
Objective: This study aimed to analyze a comprehensive set of potential risk factors for obesity and overweight among Chinese children with a full range of ages and with wide geographical coverage.
Methods: In the Prevalence and Risk Factors for Obesity and Diabetes in Youth (PRODY) study (2017-2019), the authors analyzed 193,997 children aged 3 to 18 years from 11 provinces, autonomous regions, and municipalities that are geographically representative of China. All participants underwent physical examinations, and their caregivers completed questionnaires including dietary, lifestyle, familial, and perinatal information of participants.
Background: The real-world exposure levels of non-therapeutic antibiotics and neonicotinoids in type 1 diabetes (T1D) children and their associations as environmental triggers through gut microbiota shifts remained unknown. We thus investigated the antibiotics and neonicotinoids' exposure levels and their associations with gut microbiota in pediatric T1D.
Methods: Fifty-one newly onset T1D children along with 67 age-matched healthy controls were recruited.
Importance: Obesity is a public health challenge in China, but the geographical profiles of overweight and obesity among Chinese children are limited.
Objective: To examine regional disparities in the prevalence of obesity among the heterogeneous population of Chinese children and adolescents to provide a more accurate profile of obesity among children in China.
Design, Setting, And Participants: The Prevalence and Risk Factors for Obesity and Diabetes in Youth (PRODY) study was a cross-sectional survey study conducted from January 1, 2017, to December 31, 2019, among 201 098 children aged 3 to 18 years from 11 provinces, autonomous regions, and municipalities that produced a sample of Chinese children with a full range of ages and wide geographical coverage using a multistage, stratified, cluster-sampling design.
Background: In addition to insulin resistance, impaired insulin secretion has recently been identified as a crucial factor in the pathogenesis of type 2 diabetes mellitus (T2DM). Scarce clinical data exist for pediatric T2DM.
Aim: To investigate the association of β-cell function and insulin resistance with pediatric T2DM in the first Chinese multicenter study.
Objective: This study aimed to explore the clinical value of endoscopic ultrasonography (EUS) in the endoscopic resection of gastrointestinal stromal tumors (GISTs).
Methods: A retrospective study of 92 patients who were confirmed to have GISTs by endoscopic resection after EUS examination was conducted. The preoperative features of the EUS examination, ultrasound diagnosis, endoscopic resection methods, surgical procedures, complications, and complete degree of lesion resection were recorded.
Clin Exp Pharmacol Physiol
January 2021
Purpose: Keratin 18 (KRT18) is a cytoskeleton protein that plays a key role in multiple cancers. The present study aims to further investigate the roles of KRT18 in gastric cancer (GC) tissues and cells.
Methods: The KRT18 protein expression levels of GC tissues and cells were detected using immunohistochemistry and western blot.
Background: Castleman disease, also known as giant lymph node hyperplasia, was first reported in 1956. It is a rare benign proliferative pathological change of the lymph nodes.
Case Summary: The patient, a 33-year-old woman, had epigastric distension for half a year.
Due to both the hidden nature and the irreversibility of Alzheimers disease (AD), it has become the killer of the elderly and is thus the focus of much attention in the medical field. Radiologists compare the predicted brain age with the ground truth in order to provide a preliminary analysis of AD, which helps doctors diagnose AD as early in its development as possible. In this paper, a transfer learning-based method of predicting brain age using MR images and dataset of a public brain was proposed.
View Article and Find Full Text PDFThe present study examined the association between residential indoor remodeling and poor semen quality. Sperm donors aged 18-45 years old were recruited in Shanghai, China. Semen specimens were collected and analyzed.
View Article and Find Full Text PDFZhongguo Dang Dai Er Ke Za Zhi
September 2014
Compound K (CK) is a final intestinal metabolite of protopanaxadiol-type ginsenosides from Panax ginseng and shows various bioactivities. Although it has also been found to have the property of anti-diabetes, the long-term effect of CK on insulin secretion in β-cells is still unclear. In this study, CK was prepared from ginsenoside Rd by snailase hydrolysis and its effect on the insulin secretion activity in MIN6 pancreatic β-cell lines in vitro was assessed.
View Article and Find Full Text PDFA rapid, sensitive and selective liquid chromatography-tandem mass spectrometry (HPLC-MS-MS) method has been developed for the rapid separation and structural identification of constituents in Astragali Radix (AR) The analysis was conducted on an ACQUITY HPLC chromatographic instrument and a mass spectrometer using positive electrospray ionization. Using a fast HPLC system with an ACQUITY HPLC BEH C18 column, the total analysis time for this complex herb was less than 30 min. The method used a column with 1.
View Article and Find Full Text PDFObjective: To explore the association between blood pressure and blood glucose levels and carotid atherosclerosis in elderly patients with essential hypertension and type 2 diabetes mellitus (T2DM).
Methods: A total of 670 patients aged 60 years or over with hypertension and T2DM were recruited and categorized by their systolic blood pressure (SBP): tight control, < 130 mm Hg, usual control, 130 - 139 mm Hg, or uncontrolled, ≥ 140 mm Hg; and by their HbA1c level: tight control < 6.5%, usual control 6.
Zhonghua Nan Ke Xue
May 2012
Objective: To analyze the distribution characteristics of the main semen parameters of healthy semen donors and normal fertile men in Shanghai, compare the semen quality between the two groups, and investigate the normal reference values of the semen parameters of the fertile population in Shanghai.
Methods: We obtained semen samples from 100 healthy donors and 41 fertile men, performed semen analyses according to the WHO (2010) guidelines, and determined the semen volume, sperm concentration, sperm progressive motility, total sperm count and total progressively motile sperm count. We analyzed the distribution of the semen parameters of the normal fertile men, and obtained the lower limits of their normal reference values.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao
April 2011
The number of new cases of hypophyseal tumor increases along with the advances in neuroimaging technology in recent years. The common treatment models include surgical treatment, radiotherapy, and medical therapies. This article discusses the application of long-term follow-up in non-operative hypophyseal tumor patients and its influence on the prognosis.
View Article and Find Full Text PDFBackground: Numerous studies have confirmed the effectiveness of slowing the progression of atherosclerosis by blood pressure (Bp) control in patients with hypertension and several studies also showed the efficacy of intensive glycemic control in decreasing progression of carotid intima-media thickness (CIMT) in patients with type 1 and type 2 diabetes. However, few studies have compared the relative importance of glycemic vs. Bp control in patients with diabetes and hypertension.
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