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Página 1 desde 244 resultados
Prenatal exposure to nicotine attenuates stress-induced hyperthermia in 7- to 8-week-old rats upon exposure to a novel environment.
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Given that approximately 25% of women in the United States continue to smoke cigarettes during pregnancy, it is important to know if exposure to nicotine during development alters the physiological response of the adult to the "stressors" of everyday life. Our current experiments were carried out to
Hyperthermia-induced apoptosis and the inhibition of DNA laddering by zinc supplementation and withdrawal of calcium and magnesium in suspension culture of tobacco cells.
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In the present paper we report examination of stereotypic hallmarks of apoptosis in heat-treated tobacco cells. Hyperthermia (44 °C, 4 h) caused apoptosis in 53.6% of cells when assayed 24 h after heat treatment. The induction of apoptosis by heat treatment was confirmed by flow cytometric assay.
Effect of Mild Hyperthermia on Transdermal Absorption of Nicotine from Patches.
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Application of heat (hyperthermic conditions) on skin is known to enhance drug transfer and facilitate skin penetration of molecules. The aim of this work was to study the effect of hyperthermia on the drug release and skin permeation from nicotine transdermal patches. The drug release and skin
Influence of developmental nicotine exposure on the ventilatory and metabolic response to hyperthermia.
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To determine whether developmental nicotine exposure (DNE) alters the ventilatory and metabolic response to hyperthermia in neonatal rats (postnatal age 2-4 days), pregnant dams were exposed to nicotine (6 mg kg(-1) of nicotine tartrate daily) or saline with an osmotic mini-pump implanted
Expression of Rift Valley fever virus N-protein in Nicotiana benthamiana for use as a diagnostic antigen.
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The expression of classical swine fever virus structural protein E2 gene in tobacco chloroplasts for applying chloroplasts as bioreactors.
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It has been reported that genes encoding antigens of bacterial and viral pathogens can be expressed in plants and are shown to induce protection antibodies. The structural protein E2 of classical swine fever virus (CSFV), which has been shown to carry critical epitopes, has been expressed in
Chimaeric Rift Valley fever virus-like particle vaccine candidate production in Nicotiana benthamiana.
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Rift valley fever virus (RVFV) is an emerging mosquito borne virus and haemorrhagic fever agent, which causes abortion storms in farmed small ruminants and potentially causes miscarriages in humans. Although live-attenuated vaccines are available for animals, they can only be used in endemic areas
Development of Recombinant Protein-Based Vaccine Against Classical Swine Fever Virus in Pigs Using Transgenic Nicotiana benthamiana.
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Classical swine fever virus (CSFV) is highly contagious, and fatal to infected pigs. Vaccines against CSFV have been developed from attenuated or modified live viruses. These vaccines are effective for immunization of animals, but they are associated with problems such as the accidental spreading of
DNA staining with the fluorochromes EtBr, DAPI and YOYO-1 in the comet assay with tobacco plants after treatment with ethyl methanesulphonate, hyperthermia and DNase-I.
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We applied the alkaline version of the single-cell gel electrophoresis (comet) assay to roots and leaves of tobacco (Nicotiana tabacum var. xanthi) seedlings or isolated leaf nuclei treated with: (1) the alkylating agent ethyl methanesulphonate, (2) necrotic heat treatments at 50 degrees C, and (3)
Medicine-Action of Tobacco-Treatment of Typhoid Fever-Tinea Versicolor-Iodide of Mercury Hæmol.
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Stress-induced hyperthermia is reduced by rapid-acting anxiolytic drugs independent of injection stress in rats.
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BACKGROUND
Stress-induced hyperthermia (SIH) is the transient rise in body temperature after encountering a stressor. The SIH response can be blocked by administration of various anxiolytic drugs prior to inducing stress. However, a drug injection involves handling and injection stress and therefore
Nutritional effects of marijuana, heroin, cocaine, and nicotine.
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Use of addictive drugs, such as cocaine, marijuana, and nicotine, affects food and liquid intake behavior, taste preference, and body weight. Changes in specific nutrient status and metabolism can also develop; heroin addiction can cause hyperkalemia and morphine use can result in calcium
Vanishing Lung Syndrome: Compound Effect of Tobacco and Marijuana Use on the Development of Bullous Lung Disease - A Joint Effort.
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Marijuana use has been increasing across the United States due to its legalization as both a medicinal and recreational product. A small number of case reports have described a pathological entity called vanishing lung syndrome (VLS), which is a rare bullous lung disease usually caused by tobacco
Tobacco smoke exposure and respiratory morbidity in young children.
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Secondhand smoke exposure is a potentially preventable cause of significant respiratory morbidity in young children. Our study aimed to quantify respiratory morbidity in young children exposed to secondhand smoke to identify potentially modifiable factors.
This study was embedded in a prospective
Variation in sensitivity to environmental tobacco smoke among adult non-smokers.
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This study evaluated the extent to which acute reactions to environmental tobacco smoke (ETS) among 723 adult non-smokers differ between those who report a medical history indicative of atopy and those with no such history. Study subjects were divided into three risk groups, based on their medical
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