Results 21 to 30 of about 514 (159)

Geochemical features of fossil fuel contaminants found in urban wastes (Siemianowice Śląskie, Poland) [PDF]

open access: yes, 2011
In sludge samples collected in the "Centrum" wastewater treatment plant in Siemianowice Śląskie, Poland, the composition of aliphatic- and aromatic hydrocarbons and polar compound fractions were investigated by gas chromatography-mass spectrometry (GC ...
Fabiańska, Monika, Wojtoń, Anna
core   +1 more source

Zinc Treatment Reverses and anti-Zn-Regulated miRs Suppress Esophageal Carcinomas In Vivo [PDF]

open access: yes, 2023
Esophageal squamous cell carcinoma (ESCC) is a deadly disease with few prevention or treatment options. ESCC development in humans and rodents is associated with Zn deficiency (ZD), inflammation, and overexpression of oncogenic microRNAs: miR-31 and miR ...
Brydges, Christopher R   +7 more
core   +1 more source

Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur [PDF]

open access: yes, 2018
Ichthyosaurs are extinct marine reptiles that display a notable external similarity to modern toothed whales. Here we show that this resemblance is more than skin deep.
Ahlberg, Per E.   +22 more
core   +1 more source

Ancient steroids establish the Ediacaran fossil Dickinsonia as one of the earliest animals [PDF]

open access: yes, 2020
The enigmatic Ediacara biota (571 million to 541 million years ago) represents the first macroscopic complex organisms in the geological record and may hold the key to our understanding of the origin of animals.
Bobrovskiy, Ilya   +5 more
core   +1 more source

High cholesterol absorption efficiency interferes with bile acid metabolism and cholesterol elimination from the body

open access: yesJournal of Internal Medicine, EarlyView.
Abstract Background Elevated low‐density lipoprotein (LDL) cholesterol causes atherosclerotic cardiovascular diseases. Variables of whole‐body cholesterol metabolism, for example, high cholesterol absorption efficiency, might also be atherogenic, whereas the role of bile acids is controversial.
Piia Simonen   +4 more
wiley   +1 more source

The Carbon Number‐specific Impact of Mineral Oil Saturated Hydrocarbons on Inducing Colonic Inflammation in Female and Male Fischer 344 Rats

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
MOSH‐induced colonic alterations and sex‐specific metabolic pathways in female and male F344 rats. ABSTRACT This study investigated the effects of mineral oil saturated hydrocarbon (MOSH) sub‐fractions (C20‐30 and C30‐50) on the colon of male and female F344 rats and the underlying mechanisms.
Lin Zhu   +6 more
wiley   +1 more source

Marine Natural Products from the Yucatan Peninsula [PDF]

open access: yes, 2020
[Abstract] Mexico is one of the three areas of the world with the greatest terrestrial and cultural biological diversity. The diversity of Mexican medicinal flora has been studied for a long time and several bioactive compounds have been isolated.
Jiménez, Carlos   +4 more
core   +1 more source

Reconstructing Environmental and Microbial Ecosystem Changes Across the Permian–Triassic Mass Extinction at Lusitaniadalen, Svalbard

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract The Permian–Triassic environmental crisis triggered fundamental changes in marine ecosystems, culminating in the most severe biodiversity crisis of the Phanerozoic. Yet, the environmental and geochemical conditions governing the crisis and ecosystem recovery remain debated.
S. Z. Buchwald   +17 more
wiley   +1 more source

Polyomic characterisation of polyene drug resistance in Leishmania spp. [PDF]

open access: yes, 2020
Amphotericin B is the compound of choice for the treatment of leishmaniasis, however a definitive mode of action and full knowledge of causes of resistance to this polyene are still poor.
Alpizar Sosa, Edubiel Arturo
core  

Geochemical markers and polycyclic aromatic hydrocarbons in solvent extracts from diesel engine particulate matter [PDF]

open access: yes, 2016
Exhaust particulate from compression ignition (CI) engines running on engine and chassis dynamometers was studied. Particulate dichloromethane extracts were qualitatively and quantitatively analyzed for polycyclic aromatic hydrocarbons (PAHs) and ...
Bielaczyc, Piotr   +4 more
core   +2 more sources

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