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tect astrocytes from hypoxia-induced cytotoxicity, possibly by inhibiting mitochondrial dysfunction and the expression of proinflammatory cytokines. Gas6 may also participate in these protective effects.

To investigate the possible protective mechanisms of piperine against acetaminophen (APAP)-induced hepatotoxicity in mice.

Mice were given APAP (650 mg/kg i.p. once) with or without pretreatment with piperine (50 mg/kg/day orally for 3 days).

APAP caused liver toxicity as indicated by increased serum alanine aminotransferase and liver microscopic pathology, decreased hepatic superoxide dismutase and glutathione reductase activities, without affecting nuclear factor erythroid 2-related factor 2 (Nrf2) expression. APAP administration induced inflammation and apoptosis manifested as increased NF-κB p65 and dysregulation of caspase 3/Bcl2 expression, respectively. In addition, APAP increased the expression of transforming growth factor-β receptor-associated binding protein 1 (TGFBRAP1). On the other hand, pretreatment with piperine improved liver function and structure, reserved hepatic antioxidative defense, and attenuated inflammatory and apoptotic markers. Interestingly, piperine administration enhanced hepatic TGFBRAP1 expression compared to APAP alone.

The hepatoprotective effects of piperine against APAP are mediated via its antioxidant, anti-inflammatory, and anti-apoptotic effects, in addition to regulation of TGFBRAP1.

The hepatoprotective effects of piperine against APAP are mediated via its antioxidant, anti-inflammatory, and anti-apoptotic effects, in addition to regulation of TGFBRAP1.

To explore the correlations between inflammatory response, oxidative stress, intestinal pathological damage, and intestinal flora variation in rats with type 2 diabetes mellitus (T2DM).

A total of 80 specific pathogen-free (SPF) male Sprague-Dawley (SD) rats purchased from Beijing Vital River Laboratory Animal Technology Co., Ltd. (Beijiing, China) were randomly divided into two groups, namely T2DM group (n=40) and normal group (n=40). Then, the contents of inflammatory factors [high-sensitivity C-reactive protein (hs-CRP) and tumor necrosis factor-α (TNF-α)] and oxidative stress indicators [malondialdehyde (MDA) and superoxide dismutase (SOD)] were detected. Meanwhile, the distributions of intestinal florae Bifidobacteria, Escherichia coli, Lactobacilli and Enterococcocci and the variation of endotoxin were compared between the two groups. Besides, colon specimens were pathologically examined to observe the occurrence of chronic inflammation variation, intestinal mucosal erosion, intestinal mucosal wall inflammation variation, mucosal erosion, mucosal wall thickening and mucosal fibrosis in intestinal mucosal tissues, were worse in T2DM group than those in the normal group (p<0.05). In T2DM rats, the level of glycosylated hemoglobin was positively correlated with changes in the levels of hs-CRP, MDA and endotoxin (p<0.05), and negatively associated with changes in colonization ability of intestinal florae (p<0.05). Aggravated inflammatory response, decreased antioxidant capacity, increased endotoxin level and weakened colonization ability of intestinal florae were independent risk factors for T2DM in rats.

Rats with T2DM have significantly aggravated inflammatory response, weakened antioxidant capacity, imbalanced intestinal florae and markedly pathological changes of intestinal mucosa.

Rats with T2DM have significantly aggravated inflammatory response, weakened antioxidant capacity, imbalanced intestinal florae and markedly pathological changes of intestinal mucosa.

The aim of this study was to investigate the changes in intestinal flora in preeclampsia rats and the effects of probiotics on their inflammation and blood pressure.

A total of 40 Specific Pathogen Free (SPF) Wistar rats were randomly selected in this study. Abdominal operation was performed to reduce uterine blood perfusion, so as to establish the model of preeclampsia in rats. All rats were randomly divided into two groups, namely, observation group (treated with probiotics, n=20) and control group (not treated with probiotics, n=20). Heparan 3C-Like Protease inhibitor Subsequently, the changes in serum endotoxin level during intervention, the 24-h urinary 99mTc-diethylene triamine pentaacetic acid (DTPA) excretion rate, and intestinal flora colonization ability after intervention were compared between the two groups. The distribution of intestinal flora after intervention was recorded in the two groups. Meanwhile, vascular endothelial function and blood pressure following intervention were compared between the two groups as well. In addblood pressure and the body's inflammatory responses.

This study aims to characterize in vitro D-chiro-inositol intestinal absorption and identify factors able to improve its bioavailability. D-chiro-inositol, one of the natural occurring stereoisomer of myo-inositol, acts as a second messenger in insulin-regulated glucose metabolism in complementary mode with myo-inositol. Because of their insulin-mimetic activities and safety, both myo-inositol and D-chiro-inositol are often employed as supplements in insulin-resistance treatment.

Trans-epithelial passage of D-chiro-inositol was evaluated in the human intestinal Caco-2 cell line differentiated on filter, a widely established in vitro model to study intestinal absorption. D-chiro-inositol transport was assayed in a concentration range corresponding to an estimated in vivo concentration following oral supplementation. α-Lactalbumin peptides, obtained by in vitro simulated gastrointestinal digestion, were tested as possible modulators of the intestinal permeability of D-chiro-inositol.

The absorption of this stereoisomer was relatively low and presumably due to passive diffusion, while it was greatly enhanced by the presence of α-Lactalbumin digest. α-Lactalbumin peptides induced an increase in paracellular permeability that was completely reversible, indicating lack of cytotoxicity. This effect involved temporary rearrangement of F-actin apical cytoskeleton and of the tight junction protein ZO-1.

Although further studies are required to identify and characterize the most effective peptides, the ability of α-Lactalbumin digest to act as absorption enhancers may have very interesting and promising applications in the fields of nutritional supplements and pharmacology.

Although further studies are required to identify and characterize the most effective peptides, the ability of α-Lactalbumin digest to act as absorption enhancers may have very interesting and promising applications in the fields of nutritional supplements and pharmacology.

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