Scientific Studies

L-Theanine Boosts Alpha Waves, Promotes Alert Relaxation

Interferon-α (IFN) is widely used in the treatment of certain cancers and viral infections, including hepatitis C (HCV). Unfortunately, depression is a common side effect of IFN therapy, affecting approximately a third of HCV patients receiving IFN therapy. Studies have shown that selective serotonin reuptake inhibitors (SSRIs) can effectively treat IFN-induced depression in only 63–75% of cases. For the...

5-Hydroxytryptophan (5-HTP) is the intermediate metabolite of the essential amino acid L-tryptophan (LT) in the biosynthesis of serotonin. Intestinal absorption of 5-HTP does not require the presence of a transport molecule, and is not affected by the presence of other amino acids; therefore it may be taken with meals without reducing its effectiveness. Unlike LT, 5-HTP cannot be shunted...

AbstractOBJECTIVE:Adrafinil and modafinil have received wide publicity and have become controversial in the sporting world when several athletes were discovered allegedly using these drugs as doping agents. By acknowledging the facts, the World Anti-Doping Agency (WADA) banned these drugs in sports since 2004. The present study explores the possibility of differentiating adrafinil and modafinil and their major metabolites under...

AbstractCONTEXT:Stress is a state of mental or emotional strain or tension, which can lead to underperformance and adverse clinical conditions. Adaptogens are herbs that help in combating stress. Ayurvedic classical texts, animal studies and clinical studies describe Ashwagandha as a safe and effective adaptogen.AIMS:The aim of the study was to evaluate the safety and efficacy of a high-concentration full-spectrum...

AbstractModafinil, a medication for the excessive sleepiness associated with narcolepsy, has been hypothesized to improve not just alertness but mood as well. The purpose of this study was to determine how treatment with modafinil affects mood in healthy volunteers. Normal healthy volunteers (n = 12, 10 men and 2 women; 30-44 years) underwent a 3-day, counterbalanced, randomized, crossover, inpatient...

"A pervasive feature of natural decision environments... is the fact that people are potentially accountable for the judgement and decisions they express..."

The cholinergic hypothesis claims that the decline in cognitive functions in dementia is predominantly related to a decrease in cholinergic neurotransmission. This hypothesis has led to great interest in the putative involvement of the cholinergic neurotransmission in learning and memory processes. This review aims to assess the data of studies in which the role of acetylcholine (ACh) in cognitive...

AbstractAIMS OF THE STUDY:Asthenic symptoms such as weakness accompany illness. This study investigates whether the centrally acting cholinergic agent, vitamin B analogue (sulbutiamine), is effective and acceptable in relieving these symptoms in infectious disease when combined with specific anti-infective treatment. METHODOLOGY:In a prospective uncontrolled, non-randomised, commercial, observational study, 1772 patients with an infectious disease and asthenic symptoms,...

The author reports his results of parenteral piracetam treatment in 193 patients admitted to the Psychiatric Department of Semmelweis Hospital with alcohol withdrawal delirium. Alcohol withdrawal delirium is a complex metabolic disorder, the disturbance of the highest cerebral integrative functions, which is caused by the impairment of cerebral oxidative metabolism. Piracetam is effective on most neurotransmitter systems, without a...