The effects of acute and chronic uremia in rats on their hepatic microsomal enzyme activity. 1978

U K Terner, and L I Wiebe, and A A Noujaim, and J B Dssetor, and E J Sanders

The activity of the hepatic microsomal enzymes hexabarbital oxidase, aminopyrine demethylase, and p-nitrobenzoic acid reductase were determined in the chronically uremic rats, acutely uremic rats and controls. Plasma corticoid levels (corticosterone) were also measured in all groups. A significant reduction in the hepatic microsomal enzyme activity as compared to controls was observed in both groups, with the chronic group showing slightly greater reduction. Furthermore, while plasma corticoid levels were significantly elevated in both groups, the acute uremic group had plasma corticoid levels which were almost twice the levels found in the chronically uremic animals. The significance of these observations are discussed.

UI MeSH Term Description Entries
D008297 Male Males
D008862 Microsomes, Liver Closed vesicles of fragmented endoplasmic reticulum created when liver cells or tissue are disrupted by homogenization. They may be smooth or rough. Liver Microsomes,Liver Microsome,Microsome, Liver
D009579 Nitrobenzoates Benzoic acid or benzoic acid esters substituted with one or more nitro groups. Nitrobenzoic Acids,Acids, Nitrobenzoic
D010088 Oxidoreductases The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9) Dehydrogenases,Oxidases,Oxidoreductase,Reductases,Dehydrogenase,Oxidase,Reductase
D011506 Proteins Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein. Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D001806 Blood Urea Nitrogen The urea concentration of the blood stated in terms of nitrogen content. Serum (plasma) urea nitrogen is approximately 12% higher than blood urea nitrogen concentration because of the greater protein content of red blood cells. Increases in blood or serum urea nitrogen are referred to as azotemia and may have prerenal, renal, or postrenal causes. (From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984) BUN,Nitrogen, Blood Urea,Urea Nitrogen, Blood
D002908 Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2). Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic
D006591 Hexobarbital A barbiturate that is effective as a hypnotic and sedative. Evipan,Hexenal,Hexobarbitone,Sodium Hexobarbital,Hexobarbital, Sodium
D000208 Acute Disease Disease having a short and relatively severe course. Acute Diseases,Disease, Acute,Diseases, Acute
D000305 Adrenal Cortex Hormones HORMONES produced by the ADRENAL CORTEX, including both steroid and peptide hormones. The major hormones produced are HYDROCORTISONE and ALDOSTERONE. Adrenal Cortex Hormone,Corticoid,Corticoids,Corticosteroid,Corticosteroids,Cortex Hormone, Adrenal,Hormone, Adrenal Cortex,Hormones, Adrenal Cortex

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