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)

In a group of 711 non-clinic individuals, a self-administered questionnaire gave data on the life history of headache of defined severity and psychological states as defined by the Zung SDS and the Bendig-Taylor test. When the population was divided into those with and those without a history of disabling or severe headache, significantly higher scores for the former were found on both 'anxiety' and 'depression' tests--for both sexes, at all ages. Zung SDS scores fell from youth to middle age, then rose in old age. When the frequency and duration of headache were studied in association with psychological tests, the most significant association was found between headache frequency and depression scores.
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PMID:Association of psychological measurements of anxiety and depression with headache history in a non-clinic population. 72 47

The effect of nomifensin (Hoechst 36984), a synthetic psychotropic drug whose structure differs from MAO inhibitors and tricyclics, was studied in a double blind comparative trial with desimipramine in patients with various depressive syndromes. Forty-three patients (23 in the nomifensin group and 20 in the desimipramine group) were studied for 6 weeks. Clinical follow-up was done with the Wittenborn scale (WPRS), Hamilton's rating scale for depression (HRS), Zung's scale (SDS), and the PEN inventory. The average daily dose was nomifensin 84 mg and desimipramine 76 mg. Changes in HRS, WPRS and SDS showed statistically significant improvement with both treatments. A moderate anxiolytic effect was found in the nomifensin group, whereas medication had to be discontinued in two desimipramine-treated patients because of its drive-enhancing effect. Urinary phenylethylamine excretion rose in 2 out of 8 patients after 5 weeks of treatment with nomifensin.
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PMID:A double blind comparative trial of nomifensin and desimipramine in depression. Relationship between treatment and phenylethylamine excretion. 78 70

A partially purified enterotoxin was obtained from the growth medium of Escherichia coli strain 711 (P307), a derivative of E. coli K-12, by ultrafiltration, precipitation with ammonium sulfate, molecular sieving, and anion exchange column chromatography. The active moiety, which is heat-labile, behaved like a protein particle of 180,000 to 200,000 daltons during molecular sieving and ultracentrifugation. During polyacrylamide gel electrophoresis in sodium dodecyl sulfate (SDS-PAGE), it dissociated into two subunits with apparent molecular weights of 68,000 to 70,000 and 14,000 to 15,000. SDS-PAGE after heating in SDS changed the larger subunit to an apparent molecular weight of about 40,000; the smaller subunit did not change. The intact particle induced rounding of the cells in Y-1 mouse adrenal tumor cells used for assay. The detergent-dissociated molecules were not active. Proteolysis of the purified toxin by tolylsulfonyl phenylalanyl chloromethyl ketone-trypsin appeared to enhance its activity. The addition of serum to the assay medium resulted in partial depression of the activity. Activity was also abolished by preincubation of the toxin with either a rabbit antiserum to it or solutions containing GM1 ganglioside. The length of time needed to evoke a response in the assay system by fractions from different stages in the purification of the enterotoxin was a useful parameter in the evaluation of specific activity.
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PMID:Partial purification and characterization of a heat-labile enterotoxin of Escherichia coli. 78 81

The effect was determined of replacing medium inorganic phosphate with thiophosphate on the structure and function of cultured bovine chromaffin cells. Cell cultures were incubated in normal medium containing fetal bovine serum, phosphate free medium or similar medium supplemented with inorganic phosphate or thiophosphate. In contrast to the other media, cells cultured with thiophosphate medium for 3-4 days showed seriously compromised structure and functions. The cells lost 75% of their catecholamine content and their ability to secrete remaining catecholamines in response to nicotine stimulation. Radiolabelled thiophosphate was rapidly taken up by the cells and, in long-term experiments, was incorporated largely into a 97-121 kDa protein band on SDS-PAGE. Additional minor bands were found to a lesser, variable extent. Transmission electron micrographs of cells treated with thiophosphate showed extensive depletion of chromaffin vesicles and disruption of mitochondria, suggesting that the functional damage noted with these cells could be associated with damage to mitochondria. Analysis of general cell metabolic activity by conversion of the dye (3-[3,4-dimethylthiazol-2-yl]-3,5-diphenyltetrazolium bromide) to its formazan derivative indicated increased metabolic activity at early stages of exposure to thiophosphate followed by a decline with continued exposure, supporting the argument for an overall depression of cell metabolism. Uptake of the dye neutral red, which is avidly accumulated by chromaffin cells, was also reduced for cells exposed to thiophosphate. The data suggest that thiophosphate enters chromaffin cells and disrupts energy dependent cell functions, including catecholamine storage and secretion.
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PMID:Inorganic thiophosphate effects on chromaffin cell structure and function. 130 67

A quantitative analysis of the molecular weight (MW) profile of urinary protein by SDS-PAGE was performed in streptozotocin (STZ)-injected, non-ketotic diabetic rats (DM group), diabetic rats receiving dipyridamole (DM-DIP group), normal rats (C group) and STZ-injected rats with near-normal glycemia due to insulin treatment (DM-INSULIN group). In the DM group, decrease of a small MW protein (SMWP) (MW 19.5 k) was found at 2.5 weeks, and an increase of larger MW proteins (LMWP) (MW 68 [albumin], 55 and 29 k) together with a decrease of SMWPs (MW 19.5 and 15 k) was found at 15 weeks, as compared to the C group: the MW profile of urinary protein in the DM-INSULIN and C groups was indistinguishable. At 15 weeks, creatinine clearance (Ccr) was significantly depressed and an increase in the mesangial matrix with electron dense deposits was evident in the DM group. The urinary protein abnormalities were partially corrected and the reduction of Ccr was absent in the DM-DIP group with no effect on glomerular morphology. STZ-induced diabetes in rats is accompanied by a reduction of urinary SMWP, and a subsequent increase of LMWP and depression of Ccr: dipyridamole ameliorates urinary protein abnormalities and prevents the reduction of Ccr.
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PMID:Abnormal molecular weight profile of urinary protein in rats with streptozotocin-induced diabetes. 144 72

The aim of this study was to show psychopathological and especially psychophysiological data of depressed inpatients which were collected during a 28-day double-blind study with 68 depressed inpatients given clomipramine 150 mgr/die) or maprotiline/oxaprotiline 150 mgr/die). Using Hamilton-Depression-Scale, Self-depression-scale (SDS by Zung), Beschwerdeliste (BL) and Befindlichkeitsskala (Bf-S) by v. Zerssen an impressive reduction of depression scores was observed in all rating scales with some superiority of clomipramine. But at the end of the study at treatment day 28 both groups - clomipramine and maprotiline/oxaprotilin - had similar results. During treatment each patient was part of a weekly habituation experiment using electrodermal activity in an orientation reaction as measure. Contrary to other studies (Lader 1975 or Heimann 1976, 1980) there was no difference in the course of psychophysiological data (EDA) between both treatment groups or between depressive agitation and psychomotor retardation. There was also no relationship between reactivity in EDA at study begin and treatment results.
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PMID:[Psychopathologic and psychophysiologic follow-up of inpatient depressed patients with standardized treatment with clomipramine and oxaprotiline]. 171 52

Patients with type II diabetes mellitus were assessed for symptoms of depression using the Zung Self-Rated Depression Scale (Zung SDS) and the Beck Depression Inventory (BDI). The patients were classified according to the presence or absence of diabetic complications, and they were compared with a group of demographically matched, nonmedically ill control subjects. The patients with diabetic complications scored significantly higher on the depression inventories than did the patients without complications and the control subjects. Factor analysis of BDI responses revealed that cognitive symptoms of depression were prominent in the diabetic patients with complications. In this group, 74% of patients scored within the range of clinical depression on the BDI; 35% scored within the range of severe depression. Symptoms of sexual dysfunction were significantly correlated with symptoms of depression in diabetic women but not in diabetic men. The findings are discussed within the context of other research in the behavioral aspects of diabetes mellitus.
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PMID:Symptoms of depression in patients with type II diabetes mellitus. 188 19

Liver mitochondria from rats fed ethanol chronically demonstrate an impaired ability to incorporate [35S]methionine into polypeptide products in vitro. This ethanol-induced effect on mitochondrial translation in vitro could not be attributed to significant differences in the methionine precursor pool sizes of ethanol and control mitochondria or to the acute effects of residual ethanol. The observed reduction of radiolabeled methionine incorporation into mitochondrial gene products of ethanol mitochondria in vitro reflects a decrease in the synthesis of all the mitochondrial gene products. However, the percentage of total radiolabel incorporated into each gene product is unaffected by ethanol, suggesting an ethanol-induced coordinate depression of mitochondrial protein synthesis. Moreover, SDS-PAGE and densitometry of submitochondrial particles from ethanol-fed and control rats demonstrated that the steady-state concentration of each of the mitochondrial gene products is decreased in ethanol-fed rats. This reduction of the steady-state concentration of the mitochondrial gene products may be related to the observed depressions of oxidative phosphorylation activities associated with hepatic mitochondria from ethanol-fed rats.
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PMID:Effects of chronic ethanol consumption on the synthesis of polypeptides encoded by the hepatic mitochondrial genome. 216 77

In order to delineate the molecular pathogenesis of the increased susceptibility to CMV disease in HIV infection, the patterns of antigen responsiveness in HIV-infected and non-infected individuals were investigated. CMV was fractionated by SDS-PAGE and electroblotted onto nitrocellulose. Lymphoproliferative responses of healthy HIV-, CMV+ individuals and HIV+, CMV+ asymptomatic patients to a whole CMV antigen preparation and to 20 fractions of nitrocellulose-bound CMV were then compared. Three fractions of approximate molecular weight of 130-165, 65-75, and 55-65 kD appeared to contain the major T cell stimulating antigens for HIV-, CMV+ individuals. A statistically significant depression of responses to fractions containing antigens in the ranges of 130-165 kD and 55-65 kD but not to whole CMV was seen in HIV+ individuals compared with controls. In healthy controls, the sum of the proliferative responses as measured by 3H-thymidine uptake to these three major fractions was approximately equal to the response to a whole CMV antigen preparation, whereas it was less than half of this response in five out of six HIV+ subjects. When antibody activities to CMV antigens were analysed by immunoblotting of sera from the two subject groups and also sera of ARC and AIDS patients, a selective loss of reactivity was revealed in 10 out of 19 HIV+ subjects to a band of 26-28 kD whereas all 15 HIV-, CMV+ controls recognized this band. Serum IgG and IgM values were both significantly higher in HIV+ individuals than in controls. These findings suggest that specific lesions in the repertoire of immune responsiveness to CMV antigens occur in HIV+ individuals.
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PMID:Immune responses to fractionated cytomegalovirus (CMV) antigens after HIV infection. Loss of cellular and humoral reactivity to antigens recognized by HIV-, CMV+ individuals. 217 40

This paper: (1) reviewed and integrated the small body of cross-cultural literature on Zung SDS scores among college students and (2) reported new SDS data on students in four countries. Its purpose was to facilitate the development of population- and culture-specific norms for the measurement of depression and to identify patterns in the data available at this time. The results indicated considerable culture and gender specificity. Females had higher SDS scores in all but one group. There was a slight tendency for scores to increase over time. The pattern of mean scores across cultural groups was somewhat inconsistent. Korean and Philippine students had the highest scores, Caucasian Americans the lowest. There was moderate concordance of ranked symptoms across eleven samples. This concordance increased within cultural groups and especially within nations. Finally, two specific methodological problems were discussed. First, nine of ten of the highest ranked symptoms were stated in negative form, which suggests that negative wording biases symptom means. Second, there appear to be additional problems in the specific wording of the libido and diurnal variation items as applied to college students.
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PMID:Towards culture- and population-specific norms for self-reported depressive symptomatology. 222 88


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