pulmonary heart disease/glutathione

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COR pulmonale is caused by monocrotaline and dehydromonocrotaline, but not by glutathione or cysteine conjugates of dihydropyrrolizine.

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Monocrotaline (MCT) produces pulmonary hypertension and right ventricular hypertrophy in rats. It is generally believed that MCT must undergo hepatic metabolism to reactive metabolites that are subsequently transported to the lungs to induce a pneumotoxic response. Several studies suggest that

Effects of trimetazidine on lipid peroxidation, antioxidant enzyme activities and plasma brain natriuretic peptide levels in patients with chronic cor pulmonale.

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An oxidant/antioxidant imbalance in favour of oxidants appears to occur in chronic cor pulmonale (CCP). Oxidative stress could also be a critical event in the pathogenesis of this condition. Trimetazidine (TMZ) has antioxidant properties and may affect the utilization of oxygen radicals. We

[Effect of Salvia miltiorrhiza on lipid peroxidation antioxidant enzymes activity in patients with chronic cor pulmonale].

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This paper studied the effect of Salvia miltiorrhiza (SM) on plasma lipid peroxidation (LPO), RBC superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) activity in patients with chronic cor pulmonale. 30 patients were randomly divided into two treatment groups (routine and

Short-term effects of nose-only cigarette smoke exposure on glutathione redox homeostasis, cytochrome P450 1A1/2 and respiratory enzyme activities in mice tissues.

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OBJECTIVE The components of cigarette smoke (CS) have been implicated in the development of cancer as well as in cardiopulmonary diseases. We have previously reported increased oxidative stress in rat tissues induced by tobacco-specific toxins nicotine and

Acute hepatic and renal toxicity from low doses of acetaminophen in the absence of alcohol abuse or malnutrition: evidence for increased susceptibility to drug toxicity due to cardiopulmonary and renal insufficiency.

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A 67-yr-old man with chronic cardiopulmonary disease exhibited severe hepatic and moderately severe renal injury after short-term ingestion of therapeutic doses of acetaminophen (1 to 3 gm/day for 3 days). Drug metabolism and other studies, performed 5 mo after recovery from the acute insult,

Strain differences in antioxidants in rat models of cardiovascular disease exposed to ozone.

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We examined the hypothesis that antioxidant substances and enzymes in lung, heart and in bronchoalveolar lavage fluid (BALF) are altered in response to O3 in cardiovascular disease and/or metabolic syndrome (CVD)-prone rat models. CVD strains [spontaneously hypertensive (SH), SH stroke-prone (SHSP),

Iron homeostasis and oxidative stress in idiopathic pulmonary alveolar proteinosis: a case-control study.

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BACKGROUND Lung injury caused by both inhaled dusts and infectious agents depends on increased availability of iron and metal-catalyzed oxidative stress. Because inhaled particles, such as silica, and certain infections can cause secondary pulmonary alveolar proteinosis (PAP), we tested the

Decreased hepatic selenium content in alcoholic cirrhosis.

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Selenium deficiency has been implicated as contributing to hepatic injury in alcoholics. The mechanism by which this occurs is most likely lipoperoxidation secondary to decreased activity of the selenoenzyme glutathione peroxidase. To further assess this relationship, we measured selenium content in

Combined toxicity of amorphous silica nanoparticles and methylmercury to human lung epithelial cells.

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Exposure to the ambient particulate matters (PM) has been associated with the morbidity and mortality of cardiopulmonary diseases. Compared with coarse particles, ultrafine particles (UFP) absorb or condense higher concentration of toxic air pollutants and are easily inhaled into the lung. However,

Mechanisms and pathology of monocrotaline pulmonary toxicity.

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Monocrotaline (MCT) is an 11-membered macrocyclic pyrrolizidine alkaloid (PA) that causes a pulmonary vascular syndrome in rats characterized by proliferative pulmonary vasculitis, pulmonary hypertension, and cor pulmonale. Current hypotheses of the pathogenesis of MCT-induced pneumotoxicity suggest

Effects of a chronic exercise training protocol on oxidative stress and right ventricular hypertrophy in monocrotaline-treated rats.

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1. In the present study, we investigated the effects of exercise training on cardiac hypertrophy and oxidative stress in a monocrotaline (MCT)-induced cor pulmonale model. Male Wistar rats were assigned to one of three groups: sedentary control (SC); sedentary MCT (SM); or trained MCT (TM). 2. Right

Role of oxidative stress in carbon nanotube-generated health effects.

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The development of products containing carbon nanotubes (CNTs) is a major achievement of nanotechnology, although concerns regarding risk of toxic effects linger if the hazards associated with these materials are not thoroughly investigated. Exposure to CNTs has been associated with depletion of

Rapid and sustainable detoxication of airborne pollutants by broccoli sprout beverage: results of a randomized clinical trial in China.

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Broccoli sprouts are a convenient and rich source of the glucosinolate, glucoraphanin, which can generate the chemopreventive agent, sulforaphane, an inducer of glutathione S-transferases (GST) and other cytoprotective enzymes. A broccoli sprout-derived beverage providing daily doses of 600 μmol

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