Tobacco use is a major economic and health problem. It is particularly concerning that women consume more tobacco products, have a more difficult time quitting smoking, and are less likely to benefit from smoking cessation therapy than men. As a result, women are at higher risk of developing tobacco-related diseases. Clinical evidence suggests that women are more susceptible to anxiety disorders, and are more likely to smoke in order to cope with stress than men. During smoking abstinence, women experience more intense anxiety than men and report that the anxiety-reducing effects of smoking are the main reason for their continued tobacco use and relapse. Consistent with this, pre-clinical studies using rodent models suggest that females display more intense stress during nicotine withdrawal than males. This review posits that in women, stress is a principal factor that promotes the initiation of tobacco use and relapse behavior during abstinence. Studies are reviewed at both the clinical and pre-clinical levels to provide support for our hypothesis that stress plays a central role in promoting tobacco use vulnerability in females. The clinical implications of this work are also considered with regard to treatment approaches and the need for more research to help reduce health disparities produced by tobacco use in women.
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http://dx.doi.org/10.1016/j.pnpbp.2015.04.005 | DOI Listing |
Methamphetamine (METH) is a highly addictive and dangerous drug that mainly affects neurotransmitters in the brain and leads to feelings of alertness and euphoria. The METH use can lead to addiction, which has become a worldwide problem, resulting in a slew of public health and safety issues. Recent studies showed that chronic METH use can lead to neurotoxicity, neuro-inflammation and oxidative stress which can lead to neuronal injury.
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December 2024
Department of Plant Production and Genetics, School of Agriculture, Shiraz University, Shiraz, Iran.
Salinity and lead are two important abiotic stresses that limit crop growth and yield. In this study, we assayed the effect of these stresses on tolerant and sensitive maize genotypes. Four-week-old maize plants were treated with 250 mM sodium chloride (NaCl) and 250 µM lead (Pb).
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
October 2024
College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
To select the mycorrhizal seedlings of with excellent Cd-resistance and explore the mechanism of promoting the resistance to Cd stress of , nine species of isolated from different hosts infected to form mycorrhizal seedlings, were cultured in Cd-contaminated soil for three months. We conducted the principal component analysis (PCA) on biomass, root structure, and photosynthesis, and evaluated the Cd tolerance of mycorrhizal seedlings by membership function. The results showed that dry and fresh weight of mycorrhizal seedlings under Cd stress were 1.
View Article and Find Full Text PDFNeuroscience
December 2024
Laboratorio de Mecanismos de Neurodegeneración y Neuroprotección, Departamento de Neurobiología y Neuropatología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; Neuroactive Natural Compounds UNESCO Chair, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay. Electronic address:
Neurodegenerative diseases are a group of disorders characterized by progressive degeneration of discrete groups of neurons causing severe disability. The main risk factor is age, hence their incidence is rapidly increasing worldwide due to the rise in life expectancy. Although the causes of the disease are not identified in about 90% of the cases, in the last decades there has been great progress in understanding the basis for neurodegeneration.
View Article and Find Full Text PDFEnviron Sci Technol
December 2024
Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China.
Anaerobic ammonium oxidation (anammox) represents an energy-efficient process for the removal of biological nitrogen from ammonium-rich wastewater. However, the susceptibility of anammox bacteria to coexisting heavy metals considerably restricts their use in engineering practices. Here, we report that acyl-homoserine lactone (AHL), a signaling molecule that mediates quorum sensing (QS), significantly enhances the nitrogen removal rate by 24% under Cu stress.
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