Effects Of Psychotropic Drugs In The Brain At The Neural Level

Recent findings indicate that NSCs (specifically, in the dentate gyrus of the hippocampus and in the SVC of the anterior lateral ventricles) divide throughout life and give rise to new neurons. This observation has provided a new theoretical framework for understanding processes regulating brain plasticity. The factors that regulate neurogenesis overlap with those that are altered as alcohol use becomes alcoholism (e. g. , stress, activity, learning, and other unknown environmental and genetic factors).

Although the mechanisms involved are not well understood, it is possible that modulation of neurogenesis contributes significantly to alcoholic pathology. In animal models, high doses of alcohol have been shown to disrupt neurogenesis, and may underlie long-term deficits in hippocampal structure and function. More moderate but chronic alcohol consumption also affects neurogenesis, suggesting that inhibition of neurogenesis may contribute to the neurodegeneration associated with chronic alcoholism.

Alcohol may lead to disruptions in neurogenesis in several ways: through increased levels of glucocorticoids triggered by stress, direct inhibition of glutamate–NMDA receptors, serotonin dysregulation, and inhibition of growth factor-mediated cell proliferation. Research is needed to more directly determine the function of adult neurogenesis and how alcohol-induced inhibition of neurogenesis might contribute both to the pathology and the behavioral changes associated with alcohol abuse.

In the last thirty years, the number of patients diagnosed with depression has doubled. (doubled from what? What percentage) The sharp increase in these diagnoses is due to the fact that the medical community has blurred the distinction between everyday …

Drugs either therapeutic or psychoactive affect the brain system. This discussion limits itself to the effects of psychoactive drugs in the various cognitive and motor functions of the brain and how it influence the biological and psychological make up of …

Traumatic brain injury or TBI is a serious condition that could affect people of all ages from all walks of life. Trauma is attributed to a number of causes, but the most relevant aspect concerning this kind of health problem …

The physiological and psychological effects of illegal drugs or illicit drugs depend on the substance or drug that is used or taken in by an individual. (Yoslow, 1992) Marijuana has the following physiological and psychological effects: increased heart rate, bloodshot …

According to the authors of the British Journal of Clinical Pharmacology, 12 healthy volunteers who gave oral and written consent participated in a survey on the effects alcohol has on the Central Nervous System for duration of 2 days. There …

The patient is a 38-year-old Caucasian female who presented to the emergency room involuntarily by ambulance after police were summoned to a service station, where the patient was reportedly threatening to kill the service attendant with a banana she believed …

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