...H. Igarashi; K. Inomata The effect of low-power gallium aluminium arsenide diode laser irradiation on the development of synapses was studied in the radiatum layer and the lacunosum-moleculare layer of field CA3 of the neonatal rat hippocampus. Neonatal rats were irradiated with a low-power diode...

.... One hundred and twenty-nine offspring from Fisher 344 rats received 14% v/v alcohol in tap water from conception to weaning or 3 months of age followed by dietary calcium supplements (230 mg/kg/day) to 6 months of age. Significant group effects (p < 0.001) were noted for all 12 dental and skeletal...

...Y. Satoh; K. Ishikawa; Y. Oomori; S. Takede; K. Ono We studied the morphological changes in rat Harderian glands 30 min after injection of cholinergic secretagogues. In controls, the glands exhibited a tubuloalveolar structure with relatively wide lumina, in which some osmiophilic dense droplets...

...Yutaka Taniguchi; Masataka Shiino The ultrastructural changes of rat corticotrophs were studied with the protein-A-gold immunocytochemistry. The number of secretory granules per square micrometer of cytoplasm decreased after adrenalectomy and remained low. This change was mainly due to the decrease...

...R. Padmanabhan Exencephaly was induced in Wistar rat fetuses by the administration of a single dose of cyclophosphamide (15 mg/kg) in saline after neural tube closure. The neuroepithelium (NE) and the choroid plexus were studied electron-microscopically in sections taken from a few hours after...

... in male and female Wistar rats that have been subjected to a programme of moderate physical exercise throughout their period of growth. In the trained rats a significant increase in the juxtaglomerular granulation index and a significant decrease in plasma renin concentration has been observed...

...Alphonse Riesenfeld Inbred Buffalo and Fisher rats were submitted to daily treatment with alcohol and nicotine for a period of 6 months. Alcohol treatment was pre- and postnatal, nicotine treatment postnatal only. All parameters of bone length and weight were depressed in both experiments in spite...

...Ian S. Zagon; Patricia J. McLaughlin; William E. Rogers Migrating cells from the external germinal layer of the newborn rat cerebellum were studied by light and electron microscopy. Each migrating cell possessed a single, broad, leading process oriented perpendicular to the pial surface. These cell...

...Mark R. Simon; Kenneth R. Holmes Groups of weanling and newborn Sprague-Dawley rats were each subjected to a specific 10% simulated increase in body weight to a maximum of a doubling of body weight, using constant centrifugation, to study the effects of quantified, increased, intermittent...

...María C. Semino; César L.A. Gómez Dumm; Oscar R. Rebolledo; Rodolfo E. Hernández; Juan J. Gagliardino Calcium distribution in pancreatic B cells was studied, with the aid of the pyroantimonate technique, at different times of glucose-induced secretory activity in the perfused rat pancreas...

...Mark R. Simon; Kenneth R. Holmes; Aar M. Olsen The purpose of this study was to subject groups of newborn male and female Sprague-Dawley rats each to a specific 10% simulated increase in body weight, to a maximum of a doubling of body weight, to study the effects of quantified, increased...

...Mark R. Simon; Kenneth R. Holmes; Aart M. Olsen The purpose of this study was to subject groups of hypophysectomized male and female rats each to a simulated specific 10% increase in body weight, to a maximum of a doubling of body weight, in order to study the effects of quantified, increased...

...Mark R. Simon; Kenneth R. Holmes; Aart M. Olsen The purpose of this study was to subject groups of male rats each to a specific 10% simulated increase in body weight, ranging from 1.1 to 2.0 g. Constant centrifugation was employed. After 30 and 60 days, rats were sacrificed and perfused with 10...

...S. Chen; D.R. Eisenmann; A.E. Zaki; S.H. Ashrafi Calcium distribution in secretory ameloblasts was studied in rat incisor enamel in which mineralization was temporarily disturbed by injection of either fluoride or cobalt. Pyroantimonate precipitates of calcium were analysed morphometrically...

...C.S. Wink This study compared SEM appearances of endosteal and periosteal surfaces of anorganic femoral diaphyses from three groups of adult male rats: (1) control; (2) castrate (osteoporotic), and (3) castrate + injections of dichloromethylene biphosphonate (Cl 2 entrances; (2) area of vascular...

...Toshiko Ishibashi; Masataka Shiino Anterior pituitary glands were homografted into the anterior chamber of the eye in female rats. The pituitary grafts survived and were well vascularized three weeks after the transplantation.The prolactin cells were morphologically active as shown by their well...

...Mark R. Simon Bone robustness of the major limb bones of 2-year-old and 3-year-old male Sprague-Dawley rats was determined and compared to that of 3-month-old male Sprague-Dawley rats. The results were compared to the published data on two different breeds of laboratory rats to ascertain...

...Charles R. Noback; Yoko I. Takahashi This study describes some effects of marginal vitamin A deficiency on the light-microscopic morphology of the placentas of rats. The placentas obtained were from rat dams reared on a basal vitamin-A-deficient diet supplemented with retinyl ester and other dams...

...Mark R. Simon; Kenneth R. Holmes; Aart M. Olsen The purpose of this study was to subject groups of rats each to a specific 10% increase in body weight, to a maximum of a doubling of body weight, to study the effects of quantified, increased, intermittent, compressive forces on limb bone growth...

...Alphonse Riesenfeld Absolute sacral dimensions of the rat are influenced by muscular, ovarian and testicular action, and all affect absolute sacral length more than absolute width. However, relative to trunk-length dimensions are rather stable and drop with a higher level of significance only...