منابع مشابه
Hormones and sexual behaviour.
Despite new technological advances and improved assay methods, the relationship between hormones and human sexual behavior is still poorly understood. Sex drive and responsiveness, gender identification, and sexual preference are all influenced by hormones. Endocrine studies of impotent men have produced conflicting results. Exogenous androgens seem to produce some results with impotent men....
متن کاملPathological and immunological effects of ingesting L-tryptophan and 1,1'-ethylidenebis (L-tryptophan) in Lewis rats.
The eosinophilia-myalgia syndrome (EMS) has been associated with ingestion of L-tryptophan (L-TRP) produced by a single manufacturer. Epidemiological data implicated 1,1'-ethylidenebis (L-tryptophan) (EBT) (peak 97 or peak E) as a possible etiologic agent. We showed previously that Lewis rats treated with the L-TRP implicated in EMS develop fasciitis and perimyositis similar to those seen in hu...
متن کاملL-tryptophan and scleroderma: significance of nutritional supplements containing L-tryptophan.
A 28-year-old female patient, housewife, presented to our outpatient department with a history of gradually increasing thickening and tightness of skin mainly over the extremities and face of three months duration. The patient had her first delivery five months earlier. There was no history of any significant co-morbidities or associated symptoms. Patient did not give a history of dysphagia, ex...
متن کاملInduction by L-tryptophan and an analogue, alpha-methyl-DL-tryptophan, of the enzymes catabolizing L-tryptophan in Pseudomonas.
An investigation was made of the pattern of induction of the enzymes that metabolize l-tryptophan through kynurenic acid (the quinoline pathway) in Pseudomonas fluorescens. The first four enzymes in the pathway were not induced in the same proportions or in the same time courses. This lack of coordinate induction excludes a mechanism of regulation of these enzymes at a single site as proposed i...
متن کاملSexual behaviour: Secrets and flies
Recent studies of Drosophila courtship mutants provide a molecular foundation for sexual orientation and behaviour.
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ژورنال
عنوان ژورنال: BMJ
سال: 1977
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.6052.51-c