Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 296 for “"Nicotine"”.
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Effects of nicotine on osteogenesis
… inhibiting effects of systemically administered nicotine on osteogenesis and angiogenesis. The orthopedic expansion of a suture is a non-invasive method directly related to orthodontic treatment. This study examined the actions of nicotine related to the vascularly related osteogenic response …
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Investigation of Protein-Protein Interactions among Nicotine Biosynthetic Enzymes and Characterization of a Nicotine Transporter
… Domesticated tobacco, Nicotiana tabacum produces nicotine as the predominant alkaloid. The biosynthesis of nicotine occurs exclusively in the roots of tobacco, yet accumulates in the leaves of tobacco where it is acts as a defense compound to deter insect herbivory. The research detailed in this …
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The Effects of Transdermal Nicotine on Tobacco/Nicotine Withdrawal and Concurrently Administered Cigarettes in Women and Men
Transdermal nicotine (TN) is a smoking cessation pharmacotherapy thought to work by suppressing tobacco/nicotine withdrawal and reducing the effect of a concurrently smoked tobacco cigarette. Clinical trials suggest that TN may be less efficacious for women. This study explored the possibility of …
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Nicotine and its effects on periodontal tissue
Nicotine, the chief active ingredient of tobacco, has been known since the introduction of the plant in Europe in the middle sixteenth century. Nicotine can be found in some vegetables consumed in every-day life such as eggplant, cauliflower, green tomatoes, and potatoes. Tobacco, which is the main …
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The Effects of Nicotine on Attention Orienting
… salient stimuli. It is often reported that nicotine can enhance top-down attention control and reduce distraction. In experiments 1 and 2, the effects of increasing control demands on behavior were assessed using electrophysiological (EEG) and behavioral measures in an auditory number parity …
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Nicotine Addiction and Impulsive Behaviour: Disentangling the Relationship
… This was achieved by exploring the effects of nicotine in two animal paradigms of impulsivity; the delayed reward paradigm which assessed impulsive choice,and the symmetrically reinforced go/no-go visual discrimination task which measured behavioural disinhibition. A series of preliminary …
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Reward responsivity and the development of nicotine dependence
… have been proposed to explain the development of nicotine dependence. Some theories suggest that nicotine has direct reinforcing properties, either positive or negative. That is, nicotine is self-administered because it produces pleasure or positive affect or because it alleviates aversive …
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The release of nicotine from chewing gum formulations
The first clinically proven nicotine replacement product to obtain regulatory approval was Nicorette® gum. It provides a convenient way of delivering nicotine directly to the buccal cavity, thus, circumventing 'first-pass' elimination following gastrointestinal absorption. Since launch, Nicorette® …
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Studies of Low-Nicotine Flue-Cured Tobacco Production
… of high-quality cured leaf while maintaining nicotine levels within a relatively narrow range based on the Regional Minimum Standards Program. Among the 3,000 plus alkaloids found in tobacco, nicotine accounts for greater than 90% of the total alkaloids produced in commercial tobacco …
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The preparation of a nicotine hydrochloride dust insecticide and the economic feasibility of growing high nicotine content tobacco as a cash crop
… was undertaken for the following reasons: 1. Nicotine and its compounds have long been used as insecticides, and are in great demand at the present. 2. Tobacco, the source of nicotine, is such a valuable commodity that only waste has been used as a source of nicotine for years. 3. <i>N. …
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Novel analytical methods for the investigation of nicotine metabolism.
… to tobacco consumption, the metabolism of nicotine and the analytical methods used for the determination of its metabolites. The work described in this current study is related to the use of the Konig reaction for the colorimetric determination of nicotine and its metabolites. Two novel …
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Intracellular Signaling Contributions to Behaviors Relevant to Nicotine Addiction
Nicotine is the primary addictive substance in tobacco, and most smokers who quit will relapse within a year. Evidence shows that cigarette craving increases over time, termed “incubation.” The purpose of these studies was to see if protracted abstinence from chronic nicotine increases rat …
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Nicotine Sensitization in β-Arrestin 2 Knockout Adolescent Mice.
… old BA-2 KO and wild type C57/B6 mice received nicotine tartarate (s.c, 0.5 mg/kg free base) for 7 or 14 consecutive days followed by a drug-free period. An acute nicotine challenge followed the drugfree period. Results indicated that the absence of ß-arrestin-2 reduced sensitization to nicotine …
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Development of nanoparticle based nicotine vaccines for smoking cessation
… loss, in recent decades. In recent years, nicotine vaccines that can induce production of nicotine specific antibodies in human have emerged as a promising medicine to treat tobacco addiction. In the past decade, there have been numerous nicotine vaccine candidates evaluated in human …
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Nitrogen fertilization, nitrogen and nicotine content of burley tobacco
… of nitrogen application on growth, nitrogen and nicotine contents of leaves and stalks of Burley 21. Rates of nitrogen used were 0, 75, 150 and 225 pounds per acre. Nitrogen was applied as preplant and/or as post plant applications. The maximum rate of growth and nitrogen uptake occurred during …
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The Emotional Effects of Warning Labels on Nicotine Pouch Packages
… the emotional effects of warning images on nicotine pouches containers on users and non-users of nicotine pouches. If applicable, similar warning images might be used to affect people’s consumption of nicotine pouches. Participants observed five sets of warning images, with 15 images from …
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