Results 111 to 120 of about 311,690 (329)

Abiotic synthesis of purine and pyrimidine ribonucleosides in aqueous microdroplets

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
Significance Discovery of an improved prebiotic method for the synthesis of ribonucleosides provides support to theories that posit a central role for RNA in the origin of life. It has been assumed that ribonucleosides arose through an abiotic process in
Inho Nam, H. Nam, R. Zare
semanticscholar   +1 more source

Proteogenomic Characterization Reveals Metabolic Vulnerabilities and Aberrant Phosphorylation in Colorectal Metastasis to Liver

open access: yesAdvanced Science, EarlyView.
This study provides a multi‐omics landscape of treatment‐naïve colorectal liver metastasis and reveals dysregulated molecules and cellular pathways. SHMT1 and NDRG1 Ser330 phosphorylation are demonstrated to display crucial roles in tumorigenesis and liver metastasis. Two proteomics subtypes (metabolism and RNA function) with distinct clinical outcomes
Wensi Zhao   +20 more
wiley   +1 more source

Probiotics in Alleviating Hyperuricemia: Research Status, Mechanism of Action and Challenges

open access: yesShipin gongye ke-ji
Hyperuricemia (HUA) is a chronic metabolic disease, characterized by excessive uric acid in the blood, caused by purine metabolism disorders. Studies show that conventional clinical treatment methods have certain limitations, while probiotics have the ...
Xinru YANG   +5 more
doaj   +1 more source

Purine and pyrimidine bases as growth substances for lactic acid bacteria [PDF]

open access: yes, 1941
In 1936 Richardson (1) showed that uracil was essential for the anaerobic growth of Staphylococcus aureus, but not for aerobic growth of the same organism.
Mitchell, Herschel K., Snell, Esmond E.
core  

Activation of USP30 Disrupts Endothelial Cell Function and Aggravates Acute Lung Injury Through Regulating the S‐Adenosylmethionine Cycle

open access: yesAdvanced Science, EarlyView.
USP30 deubiquitinates and stabilizes MAT2A, thereby regulating DNA methylation and miRNA expression, which ultimately leads to disruption of lung endothelial barrier and inflammation. Abstract Microvascular dysfunction is a key contributor to the development of acute inflammatory diseases, characterized by heightened vascular hyperpermeability and ...
Baoyinna Baoyinna   +11 more
wiley   +1 more source

Nucleoside Analogues for Chagas Disease and Leishmaniasis Therapy: Current Status and Future Perspectives

open access: yesMolecules
Chagas disease and leishmaniasis are two neglected tropical diseases that affect millions of people in low- and middle-income tropical countries. These diseases caused by protozoan parasites pose significant global health challenges, which have been ...
Emmanuel Awucha Nwoke   +4 more
doaj   +1 more source

Alkyne modified purines for assessment of activation of Plasmodium vivax hypnozoites and growth of pre-erythrocytic and erythrocytic stages in Plasmodium spp.

open access: hybrid, 2022
Alona Botnar   +12 more
openalex   +1 more source

Purine metabolism controls innate lymphoid cell function and protects against intestinal injury

open access: yesImmunology and Cell Biology, 2018
Inflammatory bowel disease (IBD) is a condition of chronic inflammatory intestinal disorder with increasing prevalence but limited effective therapies. The purine metabolic pathway is involved in various inflammatory processes including IBD. However, the
Siobhan Crittenden   +13 more
semanticscholar   +1 more source

Distinct Phage‐Encoded Enzymes for Substitution of Deoxythymidine by Deoxyuridine in Phage Genomes

open access: yesAdvanced Science, EarlyView.
Distinct enzymes including dCTP deaminases (Dcds), dTMP phosphatases (Dtms), and dTTP pyrophosphatases (Dtt) are found to be responsible for dU‐DNA biosynthesis in the phages PBS1, DSS3_VP1, and PhiR1‐37. Both PhiR1‐37‐derived and synthetic dU‐DNA are resistant to cleavage by restriction enzymes and Cas12a nuclease targeting dT‐containing sites.
Yating Li   +7 more
wiley   +1 more source

Probiotics administration alleviates cognitive impairment and circadian rhythm disturbance induced by sleep deprivation

open access: yesFood Science and Human Wellness
Gut microbiome is indispensable for maintaining normal brain function. Specifically, gut microbiota plays a causal role in sleep deprivation (SD)-induced cognitive impairment.
Peijun Tian   +8 more
doaj   +1 more source

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