...K. Paulini; W. Mohr; G. Beneke; R. Kulka With autoradiographic and cytophotometric methods, the labelling index and ploidy pattern of the cells of the lacrimal gland, the glandula orbitalis externa and the glandula infraorbitalis of male and female rats of different ages (1,3,6 and 12 months) were...

...J. Löhr With increasing dosage ACTH was applied intramuscularly to old and young rats. The capacities of stain affinity of hepatic nuclei for acridinorange and phenanthrenquinone were analysed cytophotometrically. There were significant differences between the age groups, which might suggest age...

...D. Platt; W. Rühl Synthetic sponge (polyether) was implanted in the subcutis of male albino rats of 3 age groups: 6 weeks old, 9 months old and 20–22 months old. Morphological and biological examinations were made on the granulation tissue which migrated into it. As parameters for the inter...

...K. Paulini; G. Beneke; R. Kulka Lacrimal gland, glandula orbitalis externa and glandula infraorbitalis were investigated in rats of different ages and both sexes with light microscopy and by chemical methods. Cells of the lacrimal gland displayed no sexually-dependent properties. Only the glandula...

... of the cutaneous damage also appears in chronic lathyrism. In the rat, the administration of lathyric toxic agents at weak and prolonged doses caused simultaneous alterations of aortic and cutaneous connective tissues in the eighth week of intoxication. In the aorta, a dislocation of the elastic framework...

..., instructions or products referred to in the content or advertisements. Rat Protein synthesis Genetic regulation Cellular membranes Insulin Irradiation Hydrocortisone Gerontologia 19: 189-202 (1973) Functions of Cells and Biosynthesis of Protein in Aging V. V. F rolkis Institute of Gerontology...

...M.T. Pieraggi; M. Julian; H. Bouissou Electron-microscopic examination of aortas of rat treated orally and chronically with β -aminopropionitrile (BAPN) has shown progressive lesions in the elastic framework. This is associated with modifications of cells in the media which dedifferentiate...

...R. Ghanadian; K. Fotherby The uptake of [ 3 H]-testosterone in vitro by the ventral lobe of the prostate of rats more than 11 months old was significantly less than that of rats 4–5 weeks old. There were significant decreases between young and old rats in the RNA and DNA content of the prostate...

...H. Tauchi; T. Yoshioka; H. Kobayashi Comparative micromeasuring studies have been made on the senile changes of the skeletal muscle tissues of the rats. The senile decrease in weight of the skeletal muscle was observed to be due to decrease in number and in volume of the muscle fibers; in case...

...A. Gommers The concentrations of glucose in blood during fasting and during hyperglycemia induced by intravenous injection (1 g/kg glucose) were determined in 3 groups of adult rats aged 3, 12 and 24 months. The fasting glycemia is remarkably stable independent of the age of the rat (mean 86 mg/l00...

...P.M. Leuenberger Electron microscopic examination of the retinal vascular system in two species of rodents (spiny mice and rats), with subsequent morphometπcal evaluation of capillary basement membrane (BM) thickness and diameter, revealed an age-correlated basement membrane thickening in both...

...V.V. Frolkis; V.V. Bezrukov; Y.K. Duplenko; I.V. Shchegoleva; V.G. Shevtchuk; N.S. Verkhratsky In experiments on adult and old rats, rabbits and cats, the age peculiarities in acetylcholine (ACh) metabolism and realization of cholinergic influences upon the effectors were investigated. In aging...

...Milos Chvapil; Dagmar Bartos; Frantisek Bartos Male Wistar rats, 1.8 and 7.5 months old, were adapted to exercise on the treadmill for a period of 7 weeks. The animals were trained 3 h daily at the treadmill speed of 24 m/min. Wet and dry weights and collagenous hydroxyl-proline content in the lung...

...A. Bass; E. Gutmann; V. Hanzlíková Senile muscles of the rat (28–36 months) show loss of overall activity of glycolytic and aerobic enzymes. However, there is a differential loss and shift of enzyme activity pattern in the three types of muscles. The extensor digitorum longus (EDL) and diaphragm...

...W.B. McCafferty; D.W. Edington Male rats of 90, 150, 300, 450 or 600 days of age were placed into sedentary or physical training experimental groups. Experimental animals ran daily for 20 min at 10–20 m/min on a treadmill set at an 8-degree incline. The experimental period lasted at least 300 days...

...H. Bouissou; M. Julian; M.T. Pieraggi The action of pyridinol carbamate (PDC) was studied in rats during chronic intoxication with β-aminopropio-nate (BAPN), and also during chronic lathyrism associated with a atherogenic diet; (1) a protective effect of PDC on the aortic wall with regard...