Results 61 to 70 of about 124,162 (316)

Regulation of Microglial Functions by Purinergic Mechanisms in the Healthy and Diseased CNS

open access: yesCells, 2020
Microglial cells, the resident macrophages of the central nervous system (CNS), exist in a process-bearing, ramified/surveying phenotype under resting conditions.
Peter Illes   +4 more
doaj   +1 more source

Intestinal Inflammation as a Dysbiosis of Energy Procurement: New Insights into an Old Topic

open access: yesGut Microbes, 2021
Inflammatory bowel disease (IBD) coincides with profound shifts in microbiota and host metabolic energy supply and demand. The gastrointestinal epithelium is anatomically positioned to provide a selective barrier between the anaerobic luminal microbiota ...
J. Scott Lee   +3 more
doaj   +1 more source

The vanishing of self-extensions over n-symmetric algebras of quasitilted type [PDF]

open access: yesarXiv, 2014
A ring R satisfies the Generalized Auslander-Reiten Condition if any R-module M with no self-extensions in degrees higher than m must have projective dimension at most m. We prove that this condition is satisfied by all n-symmetric algebras of quasitilted type- a broad class of self-injective algebras where every module is periodic under the Nakayama ...
arxiv  

Targeting miRNA‐1a and miRNA‐15b: A Novel Combinatorial Strategy to Drive Adult Cardiac Regeneration

open access: yesAdvanced Science, EarlyView.
The article explores a novel therapeutic strategy for cardiac regeneration by targeting miRNA‐1a and miRNA‐15b. Combinatorial inhibition of miR‐1a and miR‐15b enhances cardiomyocyte proliferation, improves heart function, and reduces fibrosis in myocardial infarction models.
Ting Yuan   +16 more
wiley   +1 more source

Solution of the Crow-Kimura and Eigen models for alphabets of arbitrary size by Schwinger spin coherent states [PDF]

open access: yes, 2009
To represent the evolution of nucleic acid and protein sequence, we express the parallel and Eigen models for molecular evolution in terms of a functional integral representation with an $h$-letter alphabet, lifting the two-state, purine/pyrimidine assumption often made in quasi-species theory. For arbitrary $h$ and a general mutation scheme, we obtain
arxiv   +1 more source

Dimethyl Itaconate Alleviates Escherichia coli‐Induced Endometritis Through the Guanosine‐CXCL14 Axis via Increasing the Abundance of norank_f_Muribaculaceae

open access: yesAdvanced Science, EarlyView.
The research findings indicate that dimethyl itaconate (DI) alleviates Escherichia coli (E. coli) induced endometritis by modulating the gut microbiota and enriching the abundance of norank_f_Muribaculaceae, thereby increasing the production of guanosine.
Yuhang He   +6 more
wiley   +1 more source

Lie Markov models with purine/pyrimidine symmetry [PDF]

open access: yesarXiv, 2012
Continuous-time Markov chains are a standard tool in phylogenetic inference. If homogeneity is assumed, the chain is formulated by specifying time-independent rates of substitutions between states in the chain. In applications, there are usually extra constraints on the rates, depending on the situation.
arxiv  

DISORDERS OF PURIN METABOLISM [PDF]

open access: yesJournal of the American Medical Association, 1912
The old time term "uric acid diathesis" was an elastic expression, embracing such different conditions as gout, chronic rheumatism, uratic calculus, obesity and certain nephritides. In the light of more recent knowledge, the meaning of the term has been gradually narrowed until at the present time it includes only those diseases or clinical syndromes ...
Alfred C. Reed, George B. Wallace
openaire   +3 more sources

Metabolomic and Cellular Mechanisms of Drug‐Induced Ototoxicity and Nephrotoxicity: Therapeutic Implications of Uric Acid Modulation

open access: yesAdvanced Science, EarlyView.
Drug‐induced renal damage impairs uric acid excretion, causing its accumulation in the serum, which subsequently infiltrates the cochlea. Xanthine oxidase and the ABCG2 transporter, critical in uric acid metabolism and excretion, undergo pathological changes in renal tubular and cochlear stria vascularis cells.
Suhan Guo   +11 more
wiley   +1 more source

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