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Pagina 1 a partire dal 33 risultati
Respiratory tract lesions induced in rabbits by short-term exposure to N-hexane.
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New Zealand rabbits were exposed in inhalation chambers to 3,000 ppm of n-hexane 8h/d for 8 d, and the acute respiratory effects were studied by light and electron microscopy. Animals intoxicated showed morphological changes in the lung parenchyma characterized by centriacinar emphysema and
Ex-vivo antihypertensive and calcium channel blocking activity of Androsace foliosa n-hexane leaves fraction on isolated rabbit aorta.
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Hypertension is persistent elevation in blood pressure for 3-4 weeks. Estimated global prevalence of hypertension suggested that by the Year 2025 (29%) of adult worldwide are suffering from hypertension (1.56 billion). Hypertension complications are hemorrhage, atherosclerosis, renal artery
Pulmonary Toxicity Induced by N-Hexane in Wistar Male Rats After Oral Subchronic Exposure.
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Studies of pulmonary toxicity induced by oral exposure to n-hexane are very few, in contrast to those studying the exposure by inhalation. This research tackles the oral toxic effect of n-hexane solvent on the lungs after subchronic exposure of Wistar male rats at 300, 600, and 1200 mg/kg,
Evaluation of nitrobenzenes and chlorobenzenes levels in samples of sediments from Italy: a rapid and simple method by automatic extractor and GC/MS ion trap.
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Ninety-six marine sediment samples from an Italian harbour were analysed by GC/MS ion trap for the residues of nitrobenzenes and chlorobenzenes. The significance of these compounds in the investigated matrix was discussed. In order to determine the simultaneous presence of chlorobenzenes and
Quantitative analysis of benzodiazepines in vitreous humor by high-performance liquid chromatography.
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OBJECTIVE
Benzodiazepines are frequently screened drugs in emergency toxicology, drugs of abuse testing, and in forensic cases. As the variations of benzodiazepines concentrations in biological samples during bleeding, postmortem changes, and redistribution could be biasing forensic medicine
An evaluation of the hemostatic effects of hydrophilic, alcohol, and lipophilic extracts of notoginseng.
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OBJECTIVE
To compare the hemostatic effects of hydrophilic, alcohol, or lipophilic extract of notoginseng with those of the control and placebo.
METHODS
Hemorrhagic rat model.
METHODS
Hartford Hospital, Hartford, Connecticut; animals were housed at the Hartford Hospital animal
Analytical aspects of volatile substance abuse (VSA).
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Through a case report, the authors illustrate the volatile substance abuse (VSA) toxicological investigation difficulties mainly due to evaporation of the compounds from postmortem samples and to the lack of reference data for interpretation. A 17-year-old man, student in a chemistry institute, was
Comparison of atmospheric pressure photoionization and atmospheric pressure chemical ionization for normal-phase LC/MS chiral analysis of pharmaceuticals.
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In this work, we compared APPI and APCI for normal-phase LC/MS chiral analysis of five pharmaceuticals. Performance was compared both by FIA and by on-column analysis using a ChiralPak AD-H column under optimized conditions. By comparison, APPI generated more reproducible signals and was less
Larvicidal activity of Ottonia anisum metabolites against Aedes aegypti: A potential natural alternative source for mosquito vector control in Brazil.
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OBJECTIVE
Aedes aegypti mosquito is the principal vector of the viruses responsible for urban yellow fever, dengue, dengue haemorrhagic fever, as well as Zika and chikungunya in Brazil. The present study was aimed to investigate the insecticidal potential of the extract and fractions of Ottonia
Acute and 28-Day Repeated-Dose Oral Toxicity Assessment of Abelmoschus moschatus Medik. in Healthy Wistar Rats
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Abelmoschus moschatus Medik. (family: Malvaceae) has a long history of being used as a folk medicine in Sri Lanka. Despite the therapeutic use of this plant in traditional medicine, leaves of A. moschatus have not been subjected to scientific evaluation of toxicity/adverse effects
Potentials of leaves of Aspilia africana (Compositae) in wound care: an experimental evaluation.
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BACKGROUND
The potentials of the leaves of the haemorrhage plant, Aspilia africana C. D Adams (Compositae) in wound care was evaluated using experimental models. A. africana, which is widespread in Africa, is used in traditional medicine to stop bleeding from wounds, clean the surfaces of sores, in
In vitro and in vivo Neutralizing Activity of Uvaria chamae Leaves Fractions on the Venom of Naja nigricollis in albino rat and bovine blood
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Snakebite envenomation is a global priority ranked top among other neglected tropical diseases. There is a folkloric claim that Uvaria chamae is beneficial for the management of snakebite and wounds in African ethnobotanical surveys. Besides, there are many registered patents asserting the health
Gastroprotective activity and pharmacological safety evaluation of Eupatorium aschenbornianum.
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Eupatorium aschenbornianum has been widely used in traditional Mexican and folk medicine for the treatment of wounds, skin lesions, hemorrhages and gastric ulcers in humans. Phytochemical studies have indicated that hexane extracts of E. aschenbornianum have anti-microbial and
Modulation of Blood Coagulation and Hematological Parameters by Crassocephalum crepidioides Leaf Methanol Extract and Fractions in STZ-Induced Diabetes in the Rat
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Diabetes affects the homeostasis of the circulatory system. Crassocephalum crepidioides Benth S. Moore (Asteraceae) is an edible plant locally used in the treatment of wounds, stomach ulcer, and skin-related conditions in Africa and some other parts of the world. This study investigated the
A fatal case of oral ingestion of benzine.
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A young woman committed suicide by ingesting benzine. We report the findings obtained at autopsy and the chemical analyses of the gastric contents, blood, and tissues in this case. Fatal concentrations of n-hexane, benzene, toluene and m-, p-xylene were detected. Pulmonary edema and hemorrhage were
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