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)

The activity of alkaline phosphatase was determined in a lot of Wistar white rats which had received during 8 days therapeutical doses of chloramphenicol hemisuccinate, the enzyme being investigated in the circulating granulocytes and the liver. In the neutrophil granulocytes evidence was found of a marked decrease in alkaline phosphatase activity (40% presented a positive activity in the injected animals as against 70% in the controls). In the liver the histochemical test used did not allow for a discrimination between the experimental and control animals. The biochemical test, however, showed depression of alkaline phosphatase activity in the liver of rats receiving chloramphenicol (216.72 muM PO4 mean value as against 267.36 muM PO4).
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PMID:[Interference of chloramphenicol with some cytoplasmatic enzyme systems]. 12 94

Two siblings, female 10 years old, and male 15 years old, with the diagnosis of vitamin D-dependent rickets were studied. Another sibling, also with the same diagnosis, died of bronchopnemonia at about 7 months of age. Both patients developed rachitic manifestations since the first year of life, which persisted despite the administration of massive doses of vitamin D intermitently. Severe hypocalcemia, moderate hypophosphatemia and elevated serum alkaline phosphatase were the most characteristic biochemical findings. Both patients showed diminished renal tubular reabsorption of amino acids and phosphates. These alterations were reversible during I.V. calcium gluconate administration. The clinical biochemical and X-ray manifestations disappeared completely after one year of treatment with dihydrotaquisterol. Vitamin D-dependent rickets is an autosomal recessive disease, characterized by a hydroxylation defect of 25 hydroxycholecalciferol at the carbon 1 level, due to abscence of 25 hydroxy-D1-hydroxylase. Thus 1-25 Dihydroxycholecalciferol, the active form of vitamin D3 is not formed, resulting in depression of intestinal calcium absorption and reabsorption from the bones.
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PMID:[Hypocalcemic vitamin D-dependent renal rickets]. 18 33

This study was an attempt to compare psychological and biological variables in 43 obese patients after intestinal bypass surgery. The difficulties in expressing the psychological variables quantitatively are discussed on the basis of the concept of transferability. By use of an expanded version of the Beck Depression Inventory and the Marke-Nyman Temperament Scale we could demonstrate that items concerning asthenia (self-dislike, irritability, work retardation, insomnia, fatigability, somatic preoccupation about aches and pains, loss of libido, headache, vertigo, palpitations, dryness of the mouth, thirst or increased liquid intake) had, when summed up, a score distribution indicating bimodality. The asthenic group of patients (n = 19) when compared with the non-asthenic patients (n = 24) showed metabolic deficiencies related to the vitamin D complex with no response to oral vitamin D3 administration measured by plasma levels of 25-hydroxyvitamin D3. The lack of response was associated with low calcium excretion in the urine, higher plasma alkaline phosphatase, and a tendency to higher blood levels of parathyroid hormone.
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PMID:Depression or asthenia related to metabolic disturbances in obese patients after intestinal bypass surgery. 46 85

The protective and curative effects of high levels of dietary iron and ascorbic acid on moderately long-term toxicity in rats were examined. In rats fed a diet containing 500 ppm of lead for 56 days, growth retardation, reduction of food consumption, anemia, hypertrophy of the kidney and accumulation of lead in the bone and kidney were observed, however, activities of alkaline phosphatase and GOT in the plasma did not change. Addition of 400 ppm of iron and 1% of ascorbic acid to the lead containing diet prevented the growth depression, reduction of food consumption, anemia and decreased the accumulation of lead in tissues. When these compounds were added to the lead containing diet for 18 days after feeding the lead diet alone for 38 days, almost no curative effects on lead toxicity were observed. In contrast to cadmium toxicity, dietary iron and ascorbic acid have no curative effect on established lead toxicity.
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PMID:Effectiveness of dietary iron and ascorbic acid in the prevention and cure of moderately long-term lead toxicity in rats. 50 45

The prenyl-transfer reaction catalyzed by porcine farnesyl pyrophosphate synthetase has been studied using (E)- and (Z)-3-trifluoromethyl-2-buten-1-yl pyrophosphates as substrates and inhibitors. The rate of condensation between isopentenyl pyrophosphate (IPP) and the allylic fluoro analogues is drastically depressed relative to the normal catalytic rate observed with dimethylallyl pyrophosphate (DMAPP) or geranyl pyrophosphate (GPP). A similar depression is found in the rates of solvolysis for methanesulfonate derivatives of the fluoro analogues in aqueous actone under typical SN1 reaction conditions. Prolonged incubation of [14C] IPP and (E)- or (Z)-CF3-DMAPP with the enzyme, followed by treatment with alkaline phosphatase, gave a product that comigrated with geranylgeraniol on a polystyrene column. Both fluoro analogues showed mixed linear inhibition patterns with DMAPP or GPP as the variable substrate. We interpret these results in terms of an ionization-condensation-elimination mechanism for the prenyl-transfer reaction.
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PMID:Mechanism of the prenyl-transfer reaction. Studies with (E)- and (Z)-3-trifluoromethyl-2-buten-1-yl pyrophosphate. 56 73

Serum- or plasma levels of 102 healthy individuals as well as 78 patients with chronic renal insufficiency of various degrees were tested for parathormon (PTH), calcium, magnesium, anorganic phosphate, alkaline phosphatase, kreatinin, total protein as well as magnesium concentrations of the erythrocytes; attempts were made to correlate these parameters with each other. As most important finding in healthy individuals a significant negative correlation could be observed between serum PTH and magnesium of erythrocytes, whereas patients with renal insufficiency had a marked elevation and significant positive correlation between these two parameters. Since all other correlations were not as striking, if compared to these findings, we concluded that a feedback regulation system may exist in the intracellular magnesium concentration and PTH metabolism, so that an increase of the intracellular magnesium stimulates the PTH secretion, whereas elevated PTH activity causes a decrease of the intracellular magnesium together with a depression of the PTH release.
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PMID:[Correlations between metabolisms of magnesium, calcium and parathormon (author's transl)]. 65 59

The effect of local irradiation of a 50-cm long intestinal segment outside the abdominal cavity in rabbits has been studied. The rabbits were killed at 12, 24, 48 and 72 hours after irradiation. Activities of succinate and lactate dehydrogenase, acid and alkaline phosphatase and thiamine pyrophosphatase were studied histochemically in the irradiated intestinal segment and in the part of the intestine remaining in the abdominal cavity. The same material was studied electron-microscopically. Changes in enterocytes of the intestinal crypts were observed mainly in the mitochondria and in the form of a chaotic distribution of endoplasmic membranes and densely scattered ribosomes. In intestinal crypt cells, irradiation was followed by a depression in the activities of succinate and lactate dehydrogenases and alkaline phosphatase. These changes were related to postradiation damage, not to recovery.
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PMID:Histochemical and ultrastructural changes in locally gamma-irradiated rabbit intestine. 65 66

Trans-1,2-dichloroethylene (t-DCE), an industrial solvent, proved to be moderately toxic when studied in small laboratory animals. In adult female rats brief (8 h) and prolonged (8 h daily, on 5 consecutive days a week, for more than 16 weeks) inhalation of 200 ppm--the current TLV/MAC in various countries--produced histological evidence of slight to severe fatty degeneration of the liver lobules and Kupffer cells. In addition marked pulmonary hyperaemia and alveolar septal distention were noted. Fibrous swelling of the cardiac muscle (with striation) just barely maintained) and hyperaemia remained detectable for as long as 14 h post-exposure, but only occurred at 3000 ppm/8 h. A concentration of 1000 ppm/8 h was required to produce a fall in blood albumin, urea nitrogen, alkaline phosphatase activities and erythrocyte count. The cited concentrations failed to produce prenarcotic symptoms of narcosis (central nervous system (CNS) depression). The LD50 was found to be 6.0 ml/kg i.p. and 1.0 ml/kg p.o. for female rats, and 3.2 ml/kg i;p. for female mice. In some of the rats killed in these experiments the organ changes were found to be identical to those observed after inhalation.
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PMID:Toxicity studies on trans-1,2-dichloroethylene. 85 30

Enflurane anesthesia with thiamylal induction in the dog produced only slight, statistically insignificant, changes in the heart rate and the mean systemic blood pressure. A significant depression of the respiratory rate with an associated significant increase in the arterial partial pressure of CO2 was produced, accompanied by a decrease in the blood pH. Progressive drop of the body temperature occurred throughout anesthesia. Significant hematologic changes included a reduction in the packed cell volume and the erythrocyte and leukocyte counts. The only significant change in the blood chemistry was an increase in alkaline phosphatase at 24 and 48 hours after induction of anesthesia.
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PMID:Physiologic changes in the dog anesthetized with thiamylal and enflurane. 87 63

Urethral obstruction induced in adult male cats caused clinical signs identical with those observed in naturally occurring disease. Central nervous system depression, anorexia, dehydration, vomiting, muscle weakness, and hypothermia occurred. Weight loss (due to water loss and catabolism), metabolic acidosis, mild hyponatremia, hyperkalemia, hypermagnesemia, hypocalcemia, hyperphosphatemia, hyperglycemia, azotemia, and hyperproteinemia were also observed. Serum amylase, alkaline phosphatase, and alanine aminotransferase activities were normal. Ten of 13 cats (group 1), with 72 hours' induced obstruction but not treated with parenteral fluids, died either before the obstruction was relieved or within 8 days afterward. Eight cats (group 2) with induced obstruction for 49 to 98 hours developed severe clinical and biochemical alterations. Treatment with a multiple-electrolyte solution, in addition to relief of urethral obstruction, resulted in favorable clinical and biochemical responses. These cats survived and were clinically healthy at 9 to 10 days after relief of obstruction. It was concluded that use of a multiple-electrolyte solution to correct acidosis, restore circulatory volume, and enhance renal excretion of potassium was effective supportive therapy after urethral obstruction was removed.
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PMID:Characterization and treatment of water, electrolyte, and acid-base imbalances of induced urethral obstruction in the cat. 87 80


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