the effects of steroid hormones, glucagon and insulin on rat liver phosphatidate phosphohydrolase (pap) activity were studied both in vitro and in vivo. incubation of rat hepatocytes with each hormone showed that dehydroepiandrosterone (dhea), progesterone and testosterone increase pap activity by 44.6, 37 and 36.9%, respectively. estradiol, however, decreased enzyme activity by 13.6% under the...

7 Peptide Honnone Production in Cell Culture . . . . . . . . . . . . . . . . . . . 151 8 Calcitonin and ACTH Prohonnones in Lung Cancer. . . . . . . . . . . . . . . 152 9 Circulating Immune Complexes and Proteohonnones. . . . . . . . . . . . . . 154 10 Influence of Peptide Honnones on Tumor Cell Proliferation. . . . . . . . . 156 11 Cytogenetic Studies. . . . . . . . . . . . . . . . . . . . . ....

Athletes, like others, use recreational and lorillicit psychoactive drugs. However, many athletes also use drugs to enhance their training or performance, including an array of bizarre and exotic substances. Although the majority of these substances are not psychoactive, they may be abused by athletes. Some of these substances, such as anabolic steroids and human growth honnone, are referred to...

In view ofdenrographic trends, andrologl,will increasingly be concerned with problens ofthe aging nale, especially with aspecîs of fertility. While there is considerable interindividual variation, fertility in nen usualll, persists weII itrto old age. Hàwever, inueased occurrence of spontaneous nutations ,,rcans a higher genetic riskfor children of older fathers. Dinûnished androgen levels itt ...

to determine the prognostic value of response to treatment in patients with focal segmental glomerulo-sclerosis. fsgs includes 10-15% of idiopathic nephrotic syndrome in children. bulk of evidence supports disease relationship with immune system. unfortunately, responses to immunosuppressive drugs are not desirable and progression to end-stage renal disease is common. we analyzed 62 out of 99 c...

myelography is a diagnostic procedure to indicate spinal defects. after the inception of new means of spinal cord imaging, use of myelography has been limited. since there are contraindications for other modalities in some patients, we have to use myelography. the most common complication of myelography is post myelography headache (pmh). many methods have been proposed to alleviate the pain. i...

introduction: there are controversies regarding treatment of peritonsillar abscess as a common infection of head and neck, especially for prescription of corticosteroids. according to review of articles, use of corticosteroids in management of this abscess is increasing, but more controlled and comparative studies are needed. in this clinical trial study, we evaluated corticosteroid as an adjut...

Isolated shoots of Cotrur btumei and isolated leaves from this species and from Impaliens Jut/ani were fed zeatin for different periods. High doses of the bonnone (100 ~g/rnJ ) caused a measurable effect on lipid fatty acid composition after a two-hour feeding period in uolated leaves of <AInu. The maximum effects were at 20-30 }Jg zeatin taken up per g fresh weight. With the leaves of Impatimr...

When administered to humans the pineal honnone me\atonin can phase shift a number of circadian rhythms. This property has prompted the investigation of exogenous melatonin in sleep disorders known to have an underlying chronophysiological basis (i.e. circadian rhythm sleep disorders). Both in field and simulated studies of jet lag and shift work suitably timed melatonin improved sleep and, in s...

background: endometrial remodeling occurs during each menstrual cycle in women. reports have shown that, in a variety of cell types, processes such as proliferation, signaling complex formation and extra cellular matrix remodeling require a cytoplasmic tyrosine kinase, focal adhesion kinase (fak). the present study has focused on the expression pattern of fak in human endometrium during the men...