Axially chiral thioethers and sulfoxides emerge as two pivotal classes of ligands and organocatalysts, which have remarkable features in the stereoinduction of various asymmetric transformations. However, the lack of easy methods to access such molecules with diverse structures has hampered their broader utilization. Herein, an oxidative kinetic resolution for sulfides using a chiral bifunctional squaramide as the catalyst with cumene hydroperoxide as the terminal oxidant is established.
View Article and Find Full Text PDFcircRNADisease v2.0 is an enhanced and reliable database that offers experimentally verified relationships between circular RNAs (circRNAs) and various diseases. It is accessible at http://cgga.
View Article and Find Full Text PDFThe Escherichia coli-produced human papillomavirus (HPV) 16/18 bivalent vaccine (Cecolin) has received prequalification by the World Health Organization based on its high efficacy and good safety profile. We aimed to evaluate the immunogenicity and safety of the second-generation nonavalent HPV 6/11/16/18/31/33/45/52/58 vaccine (Cecolin 9) through the randomized, blinded phase 2 clinical trial. Eligible healthy women aged 18-45Â years were randomly (1:1) allocated to receive three doses of 1.
View Article and Find Full Text PDFBackground: A safe and highly efficacious ()-produced HPV 16/18 bivalent vaccine has been prequalified by the World Health Organization. Here, we conducted a single-center, open-label, dose-escalation phase 1 clinical trial to evaluate the safety and immunogenicity of the second-generation nonavalent HPV 6/11/16/18/31/33/45/52/58 vaccine.
Method: Twenty-four eligible volunteers aged 18-45 years were enrolled in January 2019 in Dongtai, China and received 0.
Chiral α-amino ketones are common structural motifs in natural products and pharmaceuticals, as well as important synthons in organic synthesis. Thus, establishing efficient methods for preparing compounds with these privileged scaffolds is an important endeavor in synthetic chemistry. Herein we disclose a new catalytic asymmetric approach for the synthesis of chiral α-amino ketones through a chiral palladium-catalyzed arylation reaction of generated challenging α-keto imines from previously unreported -acyl -sulfonyl-,-aminals, with arylboronic acids.
View Article and Find Full Text PDFObjectives: No large sample studies have been designed to evaluate the efficacy of glucagon-like peptide-1 receptor agonists (GLP1RAs) in the primary and secondary prevention of respiratory disorders. We aimed at evaluating the relationship between use of GLP1RAs and occurrence of 12 kinds of respiratory disorders.
Methods: Large randomized placebo-controlled trials of GLP1RAs were included.
Aqueous electrochemical energy storage systems (AEESS) are considered as the most promising energy storage devices for large-scale energy storage. AEESSs, including batteries and supercapacitors, have received extensive attention due to their low cost, eco-friendliness, and high safety. However, the insufficient energy densities of the state-of-the-art AEESSs limit their practical applications which are mainly dominated by the electrochemical performances of individual electrode materials.
View Article and Find Full Text PDFBackground: Metabolic syndrome (MetS) is relatively common worldwide and an important risk factor for cardiovascular diseases. It is closely linked to arterial stiffness of the carotid artery. However, the association of MetS with the safety of carotid revascularization has been rarely studied.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2015
Objective: To explore the strategy of intestinal nematodiasis control in Dongtai City, Jiangsu Province.
Methods: The strategy of mass drug administration assisted with health education was applied in Dongtai City, which was a high endemic area of intestinal nematodiasis, and then the health education and promotion assisted with drug administration of focus population and other integrated control measures, such as the improvement of drinking water, lavatories, and environment, was applied to consolidate the achievement.
Results: The infection rate of intestinal nematodes reduced from 79.
Background: This study aimed to investigate the dosage, immunogenicity and safety profile of a novel human papillomavirus (HPV) types 16 and 18 bivalent vaccine produced by E. coli.
Methods: This randomized, double-blinded, controlled phase 2 trial enrolled women aged 18-25 years in China.
Zhongguo Zhong Yao Za Zhi
December 2014
To study the effect of steaming and baking process on contents of alkaloids in Aconite Lateralis Radix (Fuzi), 13 alkaloids were analyzed by UPLC-MS/MS equipped with ESI ion source in MRM mode. In steaming process, the contents of diester-diterpenoid alkaloids decreased rapidly, the contents of monoester-diterpenoid alkaloids firstly increased, reached the peak at 40 min, and then deceased gradually. The contents of aconine alkaloids (mesaconine, aconine and hypaconine) increased all the time during processing, while the contents of fuziline, songorine, karacoline, salsolionl were stable or slightly decreased.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
October 2014
Objective: To understand the characteristics of malaria endemic situation in Dongtai City, from 1999 to 2013.
Methods: The data of diagnosed malaria cases and related information of prevention and treatment were collected and analyzed with the epidemiological method.
Results: From 1999 to 2013, there were 27 malaria cases in total, and among which 2 cases were local-infected with Plasmodium vivax, 10 cases were imported P.
Background: Hepatitis E virus (HEV) is a leading cause of acute hepatitis. The long-term efficacy of a hepatitis E vaccine needs to be determined.
Methods: In an initial efficacy study, we randomly assigned healthy adults 16 to 65 years of age to receive three doses of either a hepatitis E vaccine (vaccine group; 56,302 participants) or a hepatitis B vaccine (control group; 56,302 participants).
Background: Hepatitis E is caused by two viral genotype groups: human types and zoonotic types. Current understanding of the epidemiology of the zoonotic hepatitis E disease is founded largely on hospital-based studies.
Methods: The epidemiology of hepatitis E was investigated in a community-based surveillance study conducted over one year in a rural city in eastern China with a registered population of 400,162.
An Escherichia coli-expressed recombinant bivalent human papillomavirus (types 16 and 18) vaccine candidate has been shown to be safe and immunogenic in preclinical trials. The safety of this vaccine was analyzed in an open-label phase I clinical trial in Jiangsu province, China. Thirty-eight healthy women from 18 to 55 y of age were enrolled and vaccinated at 0, 1, and 6 mo.
View Article and Find Full Text PDFA recombinant hepatitis E vaccine, Hecolin, has been proven safe and effective in healthy adults. As hepatitis B surface antigen (HBsAg) positive individuals have a higher risk of poor prognosis after super-infection with hepatitis E virus (HEV), the safety and immunogenicity of Hecolin in this population should be assessed. The present study is an extending analysis of data from a large randomized controlled clinical trial of Hecolin.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2011
The surveillance after schistosomiasis transmission interrupted in sandy areas showed that the schistosomiasis endemic did not occur locally, but the factors of transmission still existed. Therefore, we should continue to enhance the management of mobile population and snail control, and explore appropriate measures for schistosomiasis monitoring.
View Article and Find Full Text PDFBackground: Seroprevalence data suggest that a third of the world's population has been infected with the hepatitis E virus. Our aim was to assess efficacy and safety of a recombinant hepatitis E vaccine, HEV 239 (Hecolin; Xiamen Innovax Biotech, Xiamen, China) in a randomised, double-blind, placebo-controlled, phase 3 trial.
Methods: Healthy adults aged 16-65 years in, Jiangsu Province, China were randomly assigned in a 1:1 ratio to receive three doses of HEV 239 (30 microg of purified recombinant hepatitis E antigen adsorbed to 0.
Objective: To explore the possible effects of nutritional supplements on brain function as reflected by Water Maze test performance in mice after +Gz exposure.
Method: Mice were arranged into control group (group A), +Gz group without nutritional supplementation (group B) and +Gz plus nutritional supplementation group (group C). Each group contains 12 mice.
Space Med Med Eng (Beijing)
February 2003
Objective: To study the effects of nutritional intervention on changes of monoamines in rats brain, certain amino acids in rats serum and maze behaviors caused by high +Gy exposure.
Method: The mice were arranged into control group (Group A), +Gy group (Group B) and +Gy nutritional intervention group (group C). Group A was not exposed to +Gy.