ABSTRACT
Se evaluó el efecto del ejercio físico agudo sobre la distribución y el metabolismo de la vitamina A en un modelo experimental animal. Se estudiaron las concentraciones plasmáticas, hepaticas, renales, testiculares y de glándulas suprarrenales de la vitamina A y de sus principales formas moleculares: retinol y ésteres de retinol, en animales sometidos a ejercicio físico durante 2 h sin previo entrenamiento. Se observó una disminución en la concentración hepática y testicular de la vitamina A y un incremento de ésta en los riñones de los animales ejercitados. Se demostró, además, el incremento del catabolismo hepático del retinol bajo las condiones experimentales
Subject(s)
Rats , Animals , Male , Exercise , Adrenal Glands/analysis , Liver/analysis , Plasma/analysis , Rats, Inbred Strains/metabolism , Kidney/analysis , Testis/analysis , Vitamin A/metabolism , Chromatography, High Pressure LiquidABSTRACT
La lesión bilateral de los núcleos anterodorsales talámicos produjo un aumento significativo en la concentración de corticosterona adrenal y plasmatica, mientras que las catecolaminas adrenales disminuyeron en respuesta a la lesión de los núcleos
Subject(s)
Rats , Animals , Female , Adrenal Glands/physiology , Adrenocorticotropic Hormone/metabolism , Thalamic Nuclei , Adrenal Glands/analysis , Corticosterone/analysis , Epinephrine/analysis , Norepinephrine/analysisABSTRACT
Effect of graded distension of urinary bladder has been observed on the circulating level of catecholamine, cortisol and serotonin along with arterial blood pressure in rabbits. Simultaneously adrenal catecholamine has been also investigated. Similar pattern of increase has been observed in the levels of catecholamine, cortisol, serotonin and arterial blood pressure after bladder distension at 20 ml, 40 ml and 60 ml volumes. On this basis, it may be inferred that there is some role of the vasoconstrictor humors released during bladder distension in pressor response. At the same time, decrease in adrenal catecholamine level also supports this.
Subject(s)
Adrenal Glands/analysis , Animals , Blood Pressure , Catecholamines/analysis , Hydrocortisone/blood , Male , Organ Size , Rabbits , Serotonin/blood , Urinary Bladder/physiologyABSTRACT
5-Hydroxytryptamine and histamine were estimated in lungs, liver, spleen and adrenals of chicken. A substantial amount of both the amines was found in all the organs. The highest level of both the amines was found in adrenals followed by spleen, lungs and liver. The level of 5-hydroxytryptamine was, however, higher than histamine in all the tissues except adrenals.
Subject(s)
Adrenal Glands/analysis , Animals , Chickens/metabolism , Female , Histamine/analysis , Liver/analysis , Lung/analysis , Male , Myocardium/analysis , Serotonin/analysis , Spleen/analysisSubject(s)
Adrenal Glands/analysis , Aging , Animals , Biogenic Amines/analysis , Brain Chemistry , Male , Myocardium/analysis , RatsSubject(s)
Adrenal Glands/analysis , Animals , Ascorbic Acid/analysis , Cyclic AMP/pharmacology , Female , Male , Ovary/analysis , Prostaglandins/pharmacology , Rats , Testis/analysisABSTRACT
Intraventricular injection of histamine and normal saline in rats caused a marked fall in adrenal ascorbic acid indicating a stimulatory effect of both on pituitary adrenal axis. Intraventricularly injected histamine caused significant hypoglycaemia also in rats as compared to control series.