Results 61 to 70 of about 227,189 (359)

Effect of dietary fluorine from Araxá rock phosphate on the hepatic production of cyclic-adenosine monophosphate in broilers

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 1999
The cyclic adenosine 3’, 5’-monophosphate (cAMP) production was evaluated in liver thin sections of broiler chicks fed on a experimental diet containing bicalcium phosphate or Araxá rock phosphate (ARP) as source of P, with a high content of fluorine, at
M.J.M. Rezende   +2 more
doaj   +1 more source

Photoactivation of trans diamine platinum complexes in aqueous solution and effect on reactivity towards nucleotides [PDF]

open access: yes, 2010
We show that UVA irradiation (365 nm) of the Pt-IV complex trans,trans,trans-[(PtCl2)-Cl-IV(OH)(2)(dimethylamine) (isopropylamine)] (1), induces reduction to Pt-II photoproducts.
Cubo, Leticia   +5 more
core   +1 more source

Mechanism of Activation of AMPK by Cordycepin [PDF]

open access: yes, 2020
Cordycepin (3′-deoxyadenosine) is a major bioactive agent in Cordyceps militaris, a fungus used in traditional Chinese medicine. It has been proposed to have many beneficial metabolic effects by activating AMP-activated protein kinase (AMPK), but the ...
Atrih, Abdelmadjid   +5 more
core   +2 more sources

Life Factors and Melanoma: From the Macroscopic State to the Molecular Mechanism

open access: yesAdvanced Science, EarlyView.
Melanoma, an aggressive skin cancer, arises from dynamic interactions between genetic, environmental, and lifestyle factors. This review explores how age, gender, obesity, diet, exercise, smoking, alcohol, UV exposure, circadian rhythms, and medications influence melanoma risk and progression.
Hanbin Wang   +4 more
wiley   +1 more source

Streptococcus suis synthesizes deoxyadenosine and adenosine by 5’-nucleotidase to dampen host immune responses

open access: yesVirulence, 2018
Streptococcus suis is a major porcine bacterial pathogen and emerging zoonotic agent. S. suis 5ʹ-nucleotidase is able to convert adenosine monophosphate to adenosine, resulting in inhibiting neutrophil functions in vitro and it is an important virulence ...
Jiao Dai   +8 more
doaj   +1 more source

Hypoxanthine-guanine phosphoribosyltransferase and inosine 5’-monophosphate dehydrogenase activities in three mammalian species: aquatic (Mirounga angustirostris), semiaquatic (Lontra longicaudis annectens) and terrestrial (Sus scrofa)

open access: yesFrontiers in Physiology, 2015
Aquatic and semiaquatic mammals have the capacity of breath hold (apnea) diving. Northern elephant seals (Mirounga angustirostris) have the ability to perform deep and long duration dives; during a routine dive, adults can hold their breath for 25 min ...
Myrna eBarjau Perez-Milicua   +3 more
doaj   +1 more source

Role of AMPK Throughout Meiotic Maturation in the Mouse Oocyte: Evidence for Promotion of Polar Body Formation and Suppression of Premature Activation [PDF]

open access: yes, 2010
This study was conducted to assess the role of AMPK in regulating meiosis in mouse oocytes from the germinal vesicle stage to metaphase II. Exposure of mouse cumulus cell-enclosed oocytes (CEO) and denuded oocytes (DO) during spontaneous maturation in ...
Davis, Christopher C.   +2 more
core   +2 more sources

Cinobufagin Directly Targets PDE4D to Disrupt Fibroblast–Dendritic Cell Crosstalk in Atopic Dermatitis

open access: yesAdvanced Science, EarlyView.
Single‐cell RNA sequencing revealed that MIF signaling drives inflammatory fibroblastmyeloid cell crosstalk in atopic dermatitis. Cinobufagin, a potent PDE4D inhibitor, suppresses MIF and reduces inflammation by restoring the cAMP/PKA/CREB pathway. Genetic knockout validates PDE4D as a key driver and promising therapeutic target for atopic dermatitis ...
Shicong Li   +14 more
wiley   +1 more source

The cGAS-STING-interferon regulatory factor 7 pathway regulates neuroinflammation in Parkinson’s disease

open access: yesNeural Regeneration Research
Interferon regulatory factor 7 plays a crucial role in the innate immune response. However, whether interferon regulatory factor 7-mediated signaling contributes to Parkinson’s disease remains unknown.
Shengyang Zhou   +10 more
doaj   +1 more source

Expanding a fluorescent RNA alphabet: synthesis, photophysics and utility of isothiazole-derived purine nucleoside surrogates. [PDF]

open access: yes, 2017
A series of emissive ribonucleoside purine mimics, all comprised of an isothiazolo[4,3-d]pyrimidine core, was prepared using a divergent pathway involving a key Thorpe-Ziegler cyclization.
Fin, Andrea   +2 more
core   +1 more source

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