Results 251 to 260 of about 156,706 (322)

Why we age

open access: yesBiological Reviews, EarlyView.
ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Michael S. Ringel
wiley   +1 more source

RNA m1A methyltransferase TRMT61A promotes colorectal tumorigenesis by enhancing ONECUT2 mRNA stability and is a potential therapeutic target

open access: yesCancer Communications, EarlyView.
Abstract Background The role of N1‐methyladenosine (m1A) in cancer is poorly understood. Here we explored the function of RNA methyltransferase TRNA methyltransferase 61A (TRMT61A) in colorectal cancer (CRC) and its potential as a therapeutic target. Methods RNA m1A levels were assessed through liquid chromatography‐mass spectrometry.
Xiaoting Zhang   +18 more
wiley   +1 more source

Chemical Composition, Antioxidant, and Antibacterial Activities of Mezilaurus duckei (Lauraceae)

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Mezilaurus duckei, a Brazilian endemic tree species found exclusively in the Amazon Rainforest, is primarily exploited for timber in construction. Due to its endangered status, this study aimed to investigate the chemical profile and biological properties of the ethanolic extract and its phases derived from M. duckei leaves. Chemical profiling
Bruna S. Moroto   +7 more
wiley   +1 more source

Could the Biological Potency of Porcelia macrocarpa R.E. Fries (Annonaceae) be Linked to Its Diverse Metabolite Profile?

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Porcelia macrocarpa is a Brazilian plant species belonging to the Annonaceae family. To date, more than 190 compounds have been identified and/or isolated from this species, with terpenoids comprising the majority (62%). Alkaloids represent the second most abundant class (11%), followed by steroids (4%), acetogenins (4%), fatty acids (4 ...
Fernanda Thevenard   +4 more
wiley   +1 more source

Unraveling colorectal cancer prevention: The vitamin D - gut flora - immune system nexus. [PDF]

open access: yesWorld J Gastrointest Oncol
Zhan ZS   +5 more
europepmc   +1 more source

The signature of the gut bacterial and fungal flora structure in Chinese children with Down’s syndrome

open access: gold
Qing Mu   +7 more
openalex   +1 more source

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