Results 41 to 50 of about 20,520 (283)

The role of gut microbiota‐derived metabolites in neuroinflammation

Neuroprotection, EarlyView.
Gut microbiota‐derived metabolites accumulate in the brain, activating or inhibiting microglia and astrocytes, which affects neuroinflammatory progression. The gut microbiota converts the diet into a variety of metabolites, including bile acid, trimethylamine N‑oxide (TMAO), and indole.
Lingjie Mu, Yijie Wang
wiley   +1 more source

Meteoritic Abundances of Fatty Acids and Potential Reaction Pathways in Planetesimals [PDF]

Icarus, 2019, 319, 685-700, 2018
The origin of fatty acids on the prebiotic Earth is important as they likely formed the encapsulating membranes of the first protocells. Carbon-rich meteorites (i.e., carbonaceous chondrites) such as Murchison and Tagish Lake are well known to contain these molecules, and their delivery to the early planet by intense early meteorite bombardments ...
arxiv   +1 more source

Integrated Photo‐Rechargeable Batteries: Configurations, Design Principles, and Energy Loss Mechanisms

Small Science, EarlyView.
This review explores integrated photo‐rechargeable battery architectures that unify solar energy conversion with electrochemical storage. By analyzing two‐terminal, three‐terminal, and four‐terminal designs, this study reveals how the working mechanisms, materials, and energy loss pathways govern efficiency and propose design strategies. These insights
Tianyun Qiu, Wei Zhang, Xiaojing Hao, Kaiwen Sun   +3 more
wiley   +1 more source

Deciphering the panvascular immune landscape of atherosclerosis

VIEW, EarlyView.
Atherosclerosis (AS) involves inflammation in major arteries and can cause severe cardiovascular events like heart attacks and strokes, yet disease patterns vary significantly between arteries, complicating diagnosis and treatment. In this study, we integrated transcriptomic and single‐cell RNA sequencing data from AS plaques across five key arterial ...
Yiming Zhong, Yifan Chen, Yuehong Wang, Wenhai Pan, Honghao Huang, Lin Lin Cao, Yili Wang, Jiawen Zhang, Yunyi Liang, Xiangyue Qian, Chenxi Shi, Xiyuan Lu, Jun Pu   +12 more
wiley   +1 more source

Formation of ursodeoxycholic acid from chenodeoxycholic acid in the human colon: studies of the role of 7-ketolithocholic acid as an intermediate.

Journal of Lipid Research, 1983
The formation of ursodeoxycholic acid from chenodeoxycholic acid and the role of 7-ketolithocholic acid as an intermediate in this biotransformation were studied in vitro in fecal incubations as well as in vivo in the human colon.
H Fromm, R P Sarva, F Bazzoli
doaj  

Minihepcidins are rationally designed small peptides that mimic hepcidin activity in mice and may be useful for the treatment of iron overload [PDF]

, 2011
Iron overload is the hallmark of hereditary hemochromatosis and a complication of iron-loading anemias such as β-thalassemia. Treatment can be burdensome and have significant side effects, and new therapeutic options are needed.
Alan Waring, Bo Qiao, Elizabeta Nemeth, Emilio Ramos, Fujita, Gloria C. Preza, Gualdi, Kearney, Lyskov, Michael A. Peralta, Nemeth, Piotr Ruchala, Porter, Rogelio Pinon, Sham, Shantanu Sharma, Tomas Ganz   +16 more
core   +2 more sources

Gut Microbiota Regulate Lipid Metabolism via the Bile Acid Pathway: Resistance to Hypoxia in Gansu Zokor (Eospalax cansus)

Integrative Zoology, EarlyView.
The gut microbiota regulates lipid metabolism of Gansu zokor (Eospalax cansus) through the bile acid pathway in hypoxic environments, reflecting the unique survival strategy of subterranean rodents to maintain lipid metabolism homeostasis and flexible energy metabolism in hypoxic environments.
Maohong Yang, Yingying Zhang, Zhuohang Li, Tianyi Liu, Jianping He, Jingang Li   +5 more
wiley   +1 more source

Metabolism of 7 beta-alkyl chenodeoxycholic acid analogs and their effect on cholesterol metabolism in hamsters.

Journal of Lipid Research, 1990
The metabolism of 7-ethyl- and 7-propyl-chenodeoxycholic acids was studied in hamsters. Both bile acid analogs were absorbed efficiently by the intestine and secreted into the bile at rates similar to those of chenodeoxycholic acid.
M Une, K Yamanaga, EH Mosbach, K Tsujimura, T Hoshita   +4 more
doaj  

Applying sterols and bile acids as biomarkers for identifying human versus wild animals' faecal traces in cave sediments at archaeological sites

Archaeometry, EarlyView.
Abstract Faecal biomarkers are used to trace and identify the source of faecal matter at various types of archaeological sites. Until now, the focus has been centred on humans and domesticated animals. However, in caves, it's wild animals that play a role in the deposition of organic matter.
Natalia Gryczewska, Marcin Sulwiński, Piotr Chibowski, Maciej T. Krajcarz, Marcin Zegarek, Małgorzata Kot, Andrea Pereswiet‐Soltan, Karol Szymczak, Małgorzata Suska‐Malawska   +8 more
wiley   +1 more source

Geometric-algebraic approach to aqueous solutions of diprotic acids and its buffer mixtures [PDF]

arXiv, 2023
A closed-form analytical expression for $\ce{[H3O+]}$ has been obtained for aqueous solutions of diprotic acids and its soluble salts. This formula allows to calculate the pH of aqueous solutions of diprotic acids, their buffer solutions, and the titrations of these two by a strong base, from the values of p$K_1$, p$K_2$, and the effective ...
arxiv