Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A series of human multinucleate giant cells (MGCs) of the endocytotic type were studied using enzyme histochemical methods for dehydrogenases, glycosidases, phosphatases, and peptidases. Several enzyme patterns were found. The subgroup of MGCs associated with inflammatory granulomatous processes (sarcoidosis, granulomatous myositis, familial granulomatosis, lymphogranuloma, granulomatous cholangitis) was characterized by high activities of nonspecific esterase (NE) and tartrate-sensitive acid phosphatase (AcPase-Ts). There was no detectable activity of peptidases or tartrate-resistant isoenzyme of acid phosphatase (AcPase-Tr). This enzyme equipment was indistinguishable from that in mononuclear precursors in the granulomas. The other MGCs of the series displayed enzyme patterns substantially different from their monocytic precursors (blood monocytes and Langerhans cells). The subgroup of foreign body associated MGCs (resorption of fat, keratin, and suture material) was characterized by high activities of NE, AcPase-Tr, and greatly variable activities of both peptidases studied. The latter lacked predilection for certain subcellular regions. The subgroup of osteoclasts and so-called giant cell tumours (osteoclastoma, giant cell tumour of soft parts, giant cell epulis of peripheral, and central types) displayed very low activity of NE, high activity of AcPase-Tr, and strong activities of peptidases. The latter were localized near the surface membrane of the polykarya. MGCs in histiocytosis X (HX) differed from the previous group by higher values of NE in average. All MGC types had common denominator in the absence of alkaline phosphatase activity, on average intense dehydrogenase activities, mostly low beta-glucuronidase and highly variable alpha-mannosidase activities. The enzyme pattern heterogeneity is discussed with regard to the phenomenon of enzyme induction and depression occurring in course of polykaryon production. The variability of phenomenon may reflect reactive adaptation to varying functional demands imposed on MGCs under different conditions.
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PMID:Enzyme patterns in human endocytotic multinucleate giant cells--a histochemical study. 287 82

We have evaluated the effects of dextrofenfluramine treatment on body weight control during a 90 day period, in obese patients on a calorie-restricted diet. The weight loss in dextrofenfluramine-treated patients was significantly higher than in placebo group. The rate of weight loss was linear up to the end of the trial in d-fenfluramine patients. Neural disturbances (vertigo, headache, depression) were the most frequent side effects observed in both the d-fenfluramine and in the placebo-treated groups, without significant differences between the groups. A total number of 23 patients in the dextrofenfluramine group and 20 patients in the placebo group complained side effects. Six patients (five in the d-fenfluramine group and one in the placebo group) discontinued the treatment, due to the side effects. No modifications of the biochemical parameters considered (fasting blood glucose, bilirubin, alkaline phosphatase, creatinine, blood cell counts, asparate-amino transferase (AST), alanine-amino transferase (ALT), total plasma and HDL cholesterol, and triglycerides) were observed at the end of the trial. A significant reduction of total serum cholesterol was observed in both groups at the end of the period of treatment. In conclusion, dextrafenfluramine was proved to be in short term trials an effective and safe tool in overweight control in obese patients.
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PMID:Efficacy and safety of dexfenfluramine in obese patients: a multicenter study. 305 15

The activities were studied in five kinds of enzymes (aspartate aminotransferase - AST, alanine aminotransferase - ALT, lactate dehydrogenase - LD, the thermally stable fraction of lactate dehydrogenase - LD-1, and alkaline phosphatase - ALP) of 30 male dogs. The dogs, divided into two age categories, were studied during a long-continued training (130 days). Both transaminases exhibit characteristic changes in the activity, with a depression at the beginning between the 30th and 40th days of training, followed by a slow increase in AST and by a rapid increase in ALT, continuing until the end of the training period. A statistically significant activity pattern was recorded in LD: the activity declined continuously in both age groups of dogs. LD-1 exhibited an activity depression continuing until the 70th day of training, followed by an increase which reached statistical significance towards the end of the training. ALP activity varied regularly, but always remained significantly below the starting values. The enzymatic activities can be used as partial tests during the scientific management of the training of dogs in relation to the physiological and pathophysiological processes in the bodies of the dogs subjected to the training stress.
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PMID:[The effect of training stress on enzyme activity in working dogs]. 312 61

To examine an inhibitory mechanism of Cd on bone formation, the effects of Cd on calcification were investigated in a culture of a clonal osteogenic cell line, MC3T3-E1. At 3 days after inoculation, Cd was added to the medium containing 7 mM beta-glycerophosphate, and culture was continued for 8 days. Cd at 1.78 microM and above caused a significant decrease in 45Ca accumulation. The decrease in mineralization by Cd was similar to that in collagen content or alkaline phosphatase (ALP) activity. Histologically, the cell density and the mineralization degree were lower than those of the controls. Ultrastructurally, degenerated cells were observed with undifferentiated cells which had fewer rough-surfaced endoplasmic reticulum and many mitochondria. This suggests that Cd may inhibit the differentiation into osteoblasts as well as the cell function. On the other hand, calcification of cells at 8 days after inoculation was inhibited by Cd at 1.78 microM and above. The decrease in collagen content and ALP activity by Cd was much lower than that in calcification. Cd-treated cells were well differentiated into osteoblasts morphologically, but the mineralization degree was lower than that of the controls. Ultrastructurally, cell damage was not recognized so strongly compared with long-term Cd treatment. The mineralization of osteoblasts was also inhibited by Zn levels which left both collagen content and ALP activity unaffected. From these results, it was suggested that the inhibitory effect of Cd on in vitro calcification of MC3T3-E1 cells may be due to both a depression of cell-mediated calcification and a decrease in physiochemical mineral deposition.
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PMID:Inhibitory effects of cadmium on in vitro calcification of a clonal osteogenic cell, MC3T3-E1. 318 26

Pancreatic abscess was diagnosed by exploratory celiotomy in 6 dogs. The most common clinical signs included acute onset of lethargy (n = 5), anorexia (n = 6), vomiting (n = 5), and diarrhea (n = 2). Physical examination revealed pain response to abdominal palpation (n = 5), depression (n = 5), icterus (n = 3), fever (n = 3), and cranial abdominal mass (n = 2). Consistent preoperative clinicopathologic abnormalities included leukocytosis with left shift, observance of toxic neutrophils on the blood smear, hyperlipasemia, hyperamylasemia, hyperbilirubinemia, and increased serum alkaline phosphatase activity. In 5 of 6 dogs, abdominal radiography revealed increased soft tissue density in the cranial portion of the abdomen. Ultrasonography performed on 4 dogs confirmed pancreatic mass. In all dogs, exploratory celiotomy revealed a cavitary pancreatic mass that contained sterile, mucopurulent material. Histopathologic diagnoses included acute necrotizing or chronic-active pancreatitis and steatitis. Two dogs were euthanatized at the time of diagnosis, and the remaining 4 were treated by use of pancreatic debridement(s), open abdominal drainage, and intensive administration of fluids and antibiotics. One dog was euthanatized 4 days after surgery, because of progressive pancreatic abscessation. Three dogs recovered and were discharged.
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PMID:Pancreatic abscess in dogs: six cases (1978-1986). 319 66

We arbitrarily define "isolated weight loss" as the loss of at least 10 p. 100 of body weight over less than one year, without any single cause being disclosed by questioning, physical examination and such paraclinical examinations as blood electrolytes, blood count and differential, routine dipstick urinalysis and X-ray of the chest. Among the 105 patients we studied, the causes of isolated weight loss were: (1) psychic disorders (chiefly depression) in 60 p. 100 of the cases; (2) a variety of organic diseases in 29 p. 100, including gastrointestinal diseases (8 p. 100), cardiovascular and respiratory diseases (6 p. 100), Horton's disease (4 p. 100), Portuguese amyloidosis (1 p. 100), unexplained inflammatory syndrome (1 p. 100), endocrine disease (hyperthyroidism, 4 p. 100) and intoxication with medicines, alcohol or heroin (5 p. 100); (3) no definite cause could be found in 11 p. 100 of the cases. We suggest a diagnostic approach involving a limited number of examinations, viz.: erythrocyte sedimentation rate, measurement of transaminases, gamma GT and alkaline phosphatase enzymes, abdominal ultrasonography and ultra-sensitive TSH assay. We consider it important to switch from useless paraclinical tests to the detection and management of psychic disorders. Weight loss is a frequent motive of consultation, but its diagnostic value is often misunderstood. The purpose of this study was to provide data for the artiological diagnosis of isolated weight loss--a relatively frequent problem in internal medicine.
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PMID:[Clinical study of 105 cases of isolated weight loss in internal medicine]. 322 12

Osteocalcin is a vitamin K-dependent protein that is synthesized by osteoblasts and present in circulation. We measured serum osteocalcin concentrations in nine asthmatics before and during treatment with high IV dosages of glucocorticoids, betamethasone 0.65 mg/h. This treatment induced within 13 +/- 1.5 (SEM) hours a reduction of serum osteocalcin form 2.6 +/- 0.3 (SEM) to 1.2 +/- 0.3 microgram/L (P less than .001). During the following 24-hour period the osteocalcin levels further declined and reached a level about 30% of the pretreatment level. Continued treatment did not induce a further reduction of serum osteocalcin. A positive correlation was seen between the pretreatment osteocalcin concentration and the steady-state osteocalcin value during steroid therapy. The corticosteroids did not influence the serum calcium and phosphate concentrations but induced a minor, significant (P less than .001) decrease of serum alkaline phosphatase. After completion of steroid therapy, the osteocalcin values remained depressed for another 24 hours but had reached the pretreatment levels after another three days. Our data suggest osteocalcin as a sensitive marker of the corticosteroid induced depression of osteoblast activity.
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PMID:The acute effect of high dose corticosteroid treatment on serum osteocalcin. 325 42

A case of prolonged diarrhoea following Escherichia coli 0111 gastroenteritis is reported. Electron microscopy of the jejunal biopsy revealed effacement of the brush border and attachment of bacteria by pedestal formation. Specific activities of brush border enzymes showed marked depression of disaccharidases, zinc-resistant alpha-glucosidase, and alkaline phosphatase. In contrast, marker enzymes for basolateral membranes and endoplasmic reticulum were unaffected. The biochemical changes support the pathogenic mechanism suggested by ultrastructural studies previously reported.
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PMID:Ultrastructural and biochemical changes in human jejunal mucosa associated with enteropathogenic Escherichia coli (0111) infection. 351 Dec 12

The effects of intra-articular injection of small amounts of E. coli lipopolysaccharide (LPS) into the intercarpal joint of 5 ponies were studied. The LPS induced predictable changes all of which were analogous to acute bacterial infection, except that the development of signs occurred sooner after the LPS injection, and subsided within 36 hours. Fever was monophasic and peaked at 5-7 hours. The ponies exhibited depression, reduced or absent appetite, increased pulse and respiration rates, and lameness. The lameness became evident between 1 and 2 hours after injection, at which time warmth, articular effusion, and resentment to palpation of joint flexion were evident. Hematological changes included neutrophilic leucocytosis, and changes in copper, iron and zinc serum concentrations. The synovial fluid total protein, leucocyte, and alkaline phosphatase levels increased within 2 hours. The mucin precipitation, total protein and leucocyte counts in synovial fluid remained elevated long after clinical and hematological changes had subsided. The model is useful for the study of some aspects of infectious joint disease.
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PMID:An induced synovitis disease model in ponies. 355 39

Clarified slurry oil (CSO), the heavy residual fraction from the fluidized catalytic cracker, was applied to the shaven backs of groups of 10 male and 10 female Sprague-Dawley rats 5 days/week for 13 weeks at doses of 8, 30, 125, or 500 mg/kg/day, and to another group for 2 weeks at doses of 2000 mg/kg/day. The rats were fitted with cardboard Elizabethan collars to minimize the ingestion of the test material, which was applied undiluted and remained uncovered on the skin. A similar group of rats served as controls; they were treated in the same manner except that no CSO was applied to their skin. There was a dose-related mortality and depression of body weight gain in the rats treated with CSO at doses of 30 mg/kg/day or greater; none of the rats dosed at 2000 mg/kg/day survived more than 2 weeks. The primary target organs of CSO toxicity were the liver, thymus, and bone marrow. The effects on the liver included increased weight (250% at 500 mg/kg/day), cholangiolitis, diffuse liver cell degeneration and hypertrophy, necrosis, fibrosis, decreased serum glucose, increased levels of alkaline phosphatase, aspartate aminotransferase, alanine amino transferase, bilirubin, and triglycerides. The thymus was found to be small and upon microscopic examination to be atrophic or hypoplastic. Erythroid hypoplasia was found in the bone marrow of some of the rats dosed at 30 mg/kg/day and increased in severity with increasing dose. The erythroid hypoplasia was accompanied by a dose-related anemia. Even in the rats dosed at 8 mg/kg/day, very slight abnormalities in the bile ducts were observed upon microscopic examination of the liver. Chromatographic separation and analyses demonstrated that CSO contains about 58% 3- to 5-ring polycyclic aromatic hydrocarbons (PAHs) and approximately 8-10% carbazole derivatives. In vitro and in vivo skin penetration studies demonstrated that the carbazole materials penetrate through the skin to a considerable extent (about 44%); less penetration was observed with 2- or 3-ring (8-13%) or 5-ring PAHs (3%).
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PMID:Systemic toxicity from subchronic dermal exposure, chemical characterization, and dermal penetration of catalytically cracked clarified slurry oil. 359 Jan 98


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