[structure: see text] The highly stereocontrolled hydroboration of an alkene, a subsequent Suzuki-Miyaura cross-coupling reaction, a silylcupration on a nonterminal acetylene, and an iododesilylation were the key steps in a convergent total synthesis of (-)-ebelactone A.
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http://dx.doi.org/10.1021/ol020058d | DOI Listing |
Biol Trace Elem Res
January 2025
Hebei Key Laboratory of Reproductive Medicine, Hebei Reproductive Health Hospital, Shijiazhuang 050071, Hebei, China.
Male infertility is a common complication of diabetes. Diabetes leads to the decrease of zinc (Zn) content, which is a necessary trace element to maintain the normal structure and function of reproductive organs and spermatogenesis. The purpose of this study was to investigate the effect of metformin combined with zinc on testis and sperm in diabetic mice.
View Article and Find Full Text PDFEur Arch Paediatr Dent
January 2025
Qatar University Health, College of Dental Medicine, Qatar University, Doha, Qatar.
Purpose: To review the current evidence on the association between salivary protein profile and dental caries in children during mixed dentition stage.
Methods: This systematic review followed the PRISMA 2020 guidelines. Searches were run in PubMed, Scopus and Embase along with gray literature.
Fam Cancer
January 2025
Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Multiple endocrine neoplasia type 1 (MEN1) syndrome is an autosomal dominant disorder caused by a germline pathogenic variant in the MEN1 tumor suppressor gene. Patients with MEN1 have a high risk for primary hyperparathyroidism (PHPT) with a penetrance of nearly 100%, pituitary adenomas (PitAd) in 40% of patients, and neuroendocrine neoplasms (NEN) of the pancreas (40% of patients), duodenum, lung, and thymus. Increased MEN1-related mortality is mainly related to duodenal-pancreatic and thymic NEN.
View Article and Find Full Text PDFSleep Breath
January 2025
Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, No.1 Da Hua Road, Dong Dan, Dongcheng District, Beijing, 100730, PR China.
Purpose: To investigate the relationship between obstructive sleep apnea hypopnea syndrome (OSAHS) severity and fat, bone, and muscle indices.
Methods: This study included 102 patients with OSAHS and retrospectively reviewed their physical examination data. All patients underwent polysomnography, body composition analysis, dual-energy X-ray absorptiometry, computed tomography (CT) and blood test.
J Nat Prod
January 2025
Department of Chemical and Biological engineering, School of Engineering and Technology, National University of Mongolia, Ulaanbaatar 14201, Mongolia.
A chemical examination of a root extract of led to the isolation and identification of 23 compounds, including oxazole-type alkaloids and isoflavonoid derivatives. Notably, three oxazole-type alkaloids (, , and ) and two isoflavonoid derivatives ( and ) were obtained from a natural source for the first time. In addition, derived 2,5-diphenyloxazoles and their derivatives were synthesized.
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