Results 51 to 60 of about 5,133,102 (254)

Validation of [22,23-3H]cholic acid as a stable tracer through conversion to deoxycholic acid in human subjects

Journal of Lipid Research, 1996
Bile acids labeled with 3H on the sterol nucleus lose a substantial fraction of label during enterohepatic cycling and conversion to secondary bile acids. We tested the isotopic stability of a side-chain 3H label, [22,23-3H]cholic acid in humans.
W C Duane, C D Schteingart, H T Ton-Nu, A F Hofmann   +3 more
doaj   +1 more source

Influence of Bile Acids in Hydrogel Pharmaceutical Formulations on Dissolution Rate and Permeation of Clindamycin Hydrochloride

Gels, 2022
Clindamycin hydrochloride is a widely used antibiotic for topical use, but its main disadvantage is poor skin penetration. Therefore, new approaches in the development of clindamycin topical formulations are of great importance.
Nebojša Pavlović, Isidora Anastasija Bogićević, Dragana Zaklan, Maja Đanić, Svetlana Goločorbin-Kon, Hani Al-Salami, Momir Mikov   +6 more
doaj   +1 more source

Competitive inhibition of side chain oxidation of 3 alpha, 7 alpha-dihydroxy-5 beta-cholestan-26-oic acid by 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestan-26-oic acid in the hamster.

Journal of Lipid Research, 1980
3 alpha,7 alpha-dihydroxy-5 beta-cholestan-26-oic acid (DHCA) and 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestan-26-oic acid (THCA) are metabolized into chenodeoxycholic acid and cholic acid, respectively, through oxidation and cleavage of the ...
O W Cass, G C Williams, R F Hanson
doaj   +1 more source

Sex differences in gallbladder bile acid composition and hepatic steroid 12 alpha-hydroxylase activity in hamsters.

Journal of Lipid Research, 1983
The gallbladder bile acid composition and the activity of the hepatic steroid 12 alpha-hydroxylase were determined in male and female hamsters. Cholic acid, chenodeoxycholic acid, and deoxycholic acid were the major bile acids in both sexes; in addition,
S Kuroki, S Muramoto, T Kuramoto, T Hoshita   +3 more
doaj   +1 more source

Taurocholic Acid Is Associated With Disturbed Functional Connectivity in the Hippocampus of Patients With Depression

Advanced Science, EarlyView.
This study identifies elevated taurocholic acid (TCA) in Major Depressive Disorder patients. Gut microbiome‐associated TCA impairs hippocampal neurogenesis, triggers microglia activation, and elicits depression‐like behavior in mice via the S1PR2. In patients, functional neuroimaging reveals that serum TCA levels correlate with altered functional ...
Xiaoying Cai, Taipeng Sun, Mengzhen Feng, Gang Chen, Junchi Zhou, Hong Zhuang, Dan Wang, Ying Chen, Zhen Cheng, Zhi Xu, Xiao Zheng, Xueli Zhang, Yonggui Yuan   +12 more
wiley   +1 more source

Bile acid synthesis in HepG2 cells: effect of cyclosporin

Journal of Lipid Research, 1994
The hypothesis that cyclosporin specifically affects the pathway of bile acid synthesis that begins with 27-hydroxylation of cholesterol was evaluated in HepG2 cells, which synthesize chenodeoxycholic acid and cholic acid from endogenous 7 alpha ...
J Levy, K Budai, N B Javitt
doaj   +1 more source

Variants in AKR1D1 and Infant Mortality: Should Bile Acid Screening be a Routine Part of Newborn Screening?

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Biallelic pathogenic variants in AKR1D1 cause Δ4‐3‐oxosteroid 5β‐reductase deficiency, disrupt bile acid synthesis, and result in Congenital Bile Acid Synthesis defect type 2 (CBAS2). CBAS2 presents in infancy with cholestasis, coagulopathy, and failure to thrive.
Jade Hudson, Stephanie Hyunh, Bojana Rakic, Cornelius Boerkoel   +3 more
wiley   +1 more source

Deciphering the catalytic and pharmacological mechanisms of Coptis chinensis herbzymes to renovate intestinal microenvironment for colitis alleviation

BMEMat, EarlyView.
The synthesized CCzymes possess both antioxidant enzyme activity and pharmacological properties inherent to Coptis chinensis. By their antioxidant enzyme activity, CCzymes can attenuate oxidative stress within the inflammatory region of ulcerative colitis (UC), while their pharmacological activity acts on macrophage polarization and the intestinal ...
Zhichao Deng, Can Li, Yujie Zhang, Yuanyuan Zhu, Chenxi Xu, Bowen Gao, Mingxin Zhang, Martina H. Stenzel, Kelong Fan, Mingzhen Zhang, Yanyan Jiang   +10 more
wiley   +1 more source

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

BMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao, Rui Qu, Zan Dai, Xiqun Jiang, Xu Zhen   +4 more
wiley   +1 more source

Cofactor requiremets for 7 alpha-dehydroxylation of cholic and chenodeoxycholic acid in cell extracts of the intestinal anaerobic bacterium, Eubacterium species V.P.I. 13708.

Journal of Lipid Research, 1981
The characteristics of 7 alpha-dehydroxylase, a bile acid-biotransforming enzyme, were determined using dialyzed cell extracts of Eubacterium sp. V.P.I. 12708. 7 alpha-Dehydroxylase was induced by cholic acid in this organism.
B A White, A F Cacciapuoti, R J Fricke, T R Whitehead, E H Mosbach, P B Hylemon   +5 more
doaj   +1 more source