Results 181 to 190 of about 156,271 (269)

Amphibian‐Derived Peptide OA‐AL14 Alleviates UVB‐Induced Skin Photoaging via Autophagy Activation Mediated by the AMPK/mTOR Pathway

open access: yesIntegrative Zoology, EarlyView.
The schematic diagram illustrates that the amphibian‐derived peptide OA‐AL14 protects against UVB‐induced skin photoaging through a dual mechanism: activating the Nrf2 pathway to counteract oxidative stress and modulating the AMPK/mTOR axis to induce protective autophagy. ABSTRACT Skin photoaging, primarily driven by ultraviolet B (UVB) radiation, is a
Ying Peng   +16 more
wiley   +1 more source

Parasites at the Summit: Unexpected Geographic Distribution of the Blood Parasite Lineage Found in the Endangered Giant Lizard of Tenerife

open access: yesIntegrative Zoology, EarlyView.
We combined microscopic screening and molecular phylogenetic analyses to characterize blood parasites infecting Gallotia intermedia from the coastal cliffs of Montaña de Guaza and to place these infections in a broader biogeographic context. We detected apicomplexan parasites of the genus Karyolysus infecting 53.6% of G.
Rodrigo Megía‐Palma   +8 more
wiley   +1 more source

Seasonal Gut Microbiome Variation Associated With Both Climate and Wildlife Tourism in Asian Elephants (Elephas maximus)

open access: yesIntegrative Zoology, EarlyView.
We provide an early description of the gut microbiome of wild, free‐ranging Asian elephants (Elephas maximus). Using 16S rRNA gene amplicon data from 123 fecal samples collected across 6 months in two Sri Lankan national parks, we found that gut microbiome composition varied significantly by sampling month and, to a lesser extent, by park.
Katherine R. Amato   +7 more
wiley   +1 more source

Contrasting Responses of Rodents With Different Habitat Associations to Rapid Urbanization in a Chinese Megacity

open access: yesIntegrative Zoology, EarlyView.
Rapid urbanization reshaped rodent populations, morphology, and gut microbiota along an urban–rural gradient. The synanthropic rat (Rattus norvegicus) increased in abundance toward the urban core and exhibited reduced ear and tail length, whereas the farmland mouse (Apodemus agrarius) and woodland rat (Niviventer confucianus) declined.
Chao Zhang   +8 more
wiley   +1 more source

Seasonal Difference of Gut Microbiota at a Stopover Site in Five Passerines of Different Migratory Behavior

open access: yesIntegrative Zoology, EarlyView.
Seasonal variation significantly reshaped gut microbiota composition in migratory passerine species, whereas the resident species Suthora webbiana showed no clear seasonal shift. Species with similar migratory behaviors exhibited consistent seasonal patterns in their core gut microbiota.
Jundong Duan   +11 more
wiley   +1 more source

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