Adenohypophyseal Cytology of Chemically and Surgically Thyroidectomized Cockerels

Fertility of rat epididymal sperm after chemically and surgically induced sympathectomy.

Guanethidine, a chemical that selectively blocks sympathetic noradrenergic neurons, was used to investigate the role of sympathetic innervation in the fertility of rat epididymal sperm, using both natural mating and in utero insemination protocols. This animal model correlates, at least in part, with spinal cord injury (SCI) in men. Adult male rats were treated daily by i.p. injections, for 21 ...

Synthesis of Sulfomucopolysaccharides in Thyroidectomized Rats

The thyroid glands of rats were made non-functional by a single dose of iodine-131 on the 1st day after birth or by surgical removal on the 28th day. The incorporation of sulfate-sulfur into the sulfomucopolysaccharides of skeletons and pelts was found to be significantly depressed by thyroidectomy. Daily supplements of 5 or 10 gamma of L-thyroxine, started on the 28th day, increased the uptake...

ACTH synthesizing and releasing activities of adenohypophyseal acidophils differentiating from the isolated chromophobes in a chemically defined medium supplemented with CRF.

Fine Needle Aspiration Cytology of Intraocular, Orbital and Eyelid Lesions

Background: Fine-Needle Aspiration Cytology (FNAC) is used for diagnosis of intraocular, orbital and eyelid lesions. In this study we evaluated the outcome and the accuracy of using this technique in diagnosis of benign or malignant behavior of lesions. Methods: FNAC was performed on 26 specimens obtained from 25 patients with intraocular, orbital and eyelid tumors and the results were compared...

Production of ulcerated atherosclerotic lesions in cockerels.

• Atherosclerosis, the lipid-containing intimal lesion with marked fibrosis and calcification, morphologically similar to the human lesion, has been produced consistently in numerous animal species, mostly by feeding diets high in cholesterol and fat, with and without hormonal or other dietary manipulations. However, ulceration and thrombosis, the so-called "complicated" lesions so frequent in ...