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Depression: all studies

Page 992 of 1,034: studies 9,911 to 9,920 of 10,336, newest first. Back to the depression overview

Research

Cannabisinduzierte psychische Störungen im Jugendalter

Das Gesundheitswesen March 1, 2008 Yehonala Gudlowski

Psychosen sind Störungen der Neurotransmission im Gehirn. Bestimmte Neurotransmitter (z.B. Dopamin, Serotonin und Glutamat) werden in bestimmten Hirnregionen zu viel, in anderen zu wenig ausgeschüttet, so dass es zu Störungen des Denkens, der Handlungsplanung und der sensorischen Wahrnehmung (Halluzinationen) kommt oder bestimmte Ereignisse in bizarrer Weise interpretiert werden. So kann beim...

Sleep and Quality of Life in REM Sleep Parasomnia

Humana Press eBooks February 19, 2008 Luigi Ferini-Strambi, María Livia Fantini 4 citations

Parasomnias are abnormal behavioral or physiological events that intrude into the sleep process disrupting its continuity. Parasomnia associated to REM sleep include REM sleep behavior disorder, nightmare disorders, recurrent isolated sleep paralysis (SP), and sleep-related painful erections. The quality of life of patients suffering from parasomnias may vary according to the disorder. REM...

Cellular mechanisms underlying the antidepressant effects of ketamine: role of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptors.

Biological Psychiatry February 15, 2008 Sungho Maeng, Carlos A. Zarate, Jing Du et al.

Ketamine exerts a robust, rapid, and relatively sustained antidepressant effect in patients with major depression. Understanding the mechanisms underlying the intriguing effects of N-methyl d-aspartate (NMDA) antagonists could lead to novel treatments with a rapid onset of action. The learned helplessness, forced swim, and passive avoidance tests were used to investigate ketamine's behavioral...

Ecstasy (MDMA) and oral health.

British Dental Journal January 26, 2008 H S Brand, S N Dun, A V Nieuw Amerongen

3,4-methylenedioxymethamphetamine (MDMA), more commonly known as 'ecstasy' or XTC, is frequently used by young adults in the major cities. Therefore, it is likely that dentists might be confronted with individuals who use ecstasy. This review describes systemic and oral effects of ecstasy. Life-threatening complications include hyperthermia, hyponatraemia and liver failure. In addition,...

Secondary metabolites from three Florida sponges with antidepressant activity.

Journal of Natural Products January 25, 2008 Anna J Kochanowska, Karumanchi V Rao, Suzanne Childress et al.

Brominated indole alkaloids are a common class of metabolites reported from sponges of the order Verongida. Herein we report the isolation, structure determination, and activity of metabolites from three Florida sponges, namely, Verongula rigida (order Verongida, family Aplysinidae), Smenospongia aurea, and S. cerebriformis (order Dictyoceratida, family Thorectidae). All three species were...

Increased response to ketamine following treatment at long intervals: implications for intermittent use.

Biological Psychiatry January 15, 2008 Keith A Trujillo, Juan J Zamora, Kathleen P Warmoth

Ketamine has been used for many years as a dissociative anesthetic; however, there is evidence of increasing abuse, especially at dance clubs and raves. In addition, there is increasing interest in the use of subanesthetic doses of ketamine for the treatment of pain and depression, as well as for clinical research on schizophrenia. Despite growing use, relatively little is known about the...

Inactivation of the 5-HT(7) receptor partially blocks phencyclidine-induced disruption of prepulse inhibition.

Biological Psychiatry January 1, 2008 Svetlana Semenova, Mark A. Geyer, J Gregor Sutcliffe et al.

Studies have implicated the serotonin (5-HT)(7) receptor in physiological and pathophysiological phenomena, including thermoregulation, central control of micturition and locomotion, regulation of circadian rhythm, sleep, and depression. Further, several antidepressant and antipsychotic drugs have high affinity for the 5-HT(7) receptor. We examined the role of 5-HT(7) receptors in a rodent...

Dinosaur girls, candy girls, and Trinity: voices of Taiwanese club drug users.

Journal of ethnicity in substance abuse 2008 Kit Sang Leung, Jih-Heng Li, Wen-Ing Tsay et al.

Research among Asian users of methylenedioxy methamphetamine (MDMA), also known as Ecstasy, is rare. To evaluate the feasibility of a study on the abuse of and dependence on Ecstasy, two focus groups of users (n= 12) and health professionals (n=7) were conducted in Taiwan. Major results included blatant human testing with "candy and dinosaur girls" and a specific sequence of drugs called a...

Mindfulness-Based Stress Reduction (MBSR) Program and its Application in Health Psychology

The Japanese Journal of Health Psychology 2008 Yutaka Haruki, Rie Ishikawa, Rika Kouno et al. 4 citations

This paper provides an overview of the Mindfulness-Based Stress Reduction (MBSR) Program developed by Kabat-Zinn. The meaning of mindfulness, Kabat-Zinn's view of mediation, and six techniques of MBSR—eating meditation, breathing, body scan, yoga, walking meditation and sitting meditation—are explained. The effectiveness of MBSR on increased stress tolerance, cognitive change, improved...

Acute administration of ketamine induces antidepressant-like effects in the forced swimming test and increases BDNF levels in the rat hippocampus.

Progress in Neuro-Psychopharmacology and Biological Psychiatry January 1, 2008 Lêda S B Garcia, Clarissa M Comim, Samira S Valvassori et al.

Ketamine is a non-competitive antagonist to the phencyclidine site of N-methyl-d-aspartate (NMDA) receptor. Clinical findings point to a rapid onset of action for ketamine on the treatment of major depression. Considering that classic antidepressants may take long-lasting time to exhibit their main therapeutic effects, the present study aims to compare the behavioral effects and the BDNF...