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At least 883 records · Page 49Linked to original sources
PubMed1990

[Acute hepatic lesion caused by Giardia lamblia].

A study was made of 20 rats infested by Giardia muris in which a histologic study was made of the liver, as well as of 25 patients with giardiasis and elevated alanine-aminotransferase levels. Patients with positive A or B hepatitis markers, cholelithiasis or history of drug or alcohol use were excluded. Tests of liver function and liver biopsy were performed and antiparasite therapy was given during three months of follow-up, after which the liver biopsy was repeated. Humoral alterations were compared to those of 30 patients with acute viral hepatitis (15 type A and 15 type B) over the same periods of time. In 20% of the rats, nonspecific liver lesions were found. In the patients liver enzymes and the thymol test normalized a month after treatment and serum bile acids became normal in the third month. The liver biopsy demonstrated hepatic damage in 94% of the patients (in 20 cases cell lesions and in 12 cases inflammatory lesions) which regressed in the third month, the follow-up biopsy being normal after eradication of the parasite was confirmed. The comparative study with viral hepatitis showed highly significant differences in all the variables studied during the follow-up stage. Emphasis is placed on the importance of this lesion and its differential diagnosis to prevent its progression to chronic liver disease.

Acute Disease↗
PubMed1989

The effect of storage media and duration of storage of extracted teeth on the shear bond strength of Scotchbond 2/Silux to dentin.

The objective was to determine the effect of storage media and the duration of storage of extracted teeth on the shear bond strength (SBS) of Scotchbond 2/Silux to dentin. Extracted human mandibular and maxillary first permanent molars were stored in buffered formalin (A), 1% chloramine (B), 70% ethanol (C), physiological saline (D), or 0.05% thymol (E). Fifteen test specimens were prepared on teeth stored in each medium two days after extraction (Procedures A1 to E1) or after six months storage (Procedures A2 to E2). The teeth were embedded in brass tooth cups and the occlusal surfaces ground wet on 180 and then 600 grit SiC immediately prior to the preparation of a test specimen. The Scotchprep Primer and the Scotchbond 2 Adhesive were applied to the dentin surfaces as directed by the manufacturer. Cylinders of Silux Composite were bonded to the treated dentin surfaces in a special device. The specimens were removed 15 minutes after cure and stored in distilled water at 37 degrees C for 24 hours. A shear load was applied to the bonded cylinders in an Instron machine at a crosshead speed of 0.02 inch.min-1. The SBS were calculated and expressed in MN.m-2. The data were analyzed by ANOVA and Duncan's multiple range test at the 5% level of significance.2+e mean SBS + SD

Bisphenol A-Glycidyl Methacrylate↗
PubMedDate not supplied

[Use of a microfluorometric method for measuring free calcium in the cytoplasm of isolated cultured rat cardiomyocytes].

Dual wavelength microfluorometry was used to measure the cytoplasmic free calcium concentration [( Ca2+]in) in single cultured cells from ventricular myocytes of neonatal rats loaded with the indicator fura-2. At 2.5 nmol/l extracellular Ca2+ in the resting cells [Ca2+]in was between 80 and 110 nmol/l. Sometimes, spontaneous low-frequency (approximately 0.1 Hz) [Ca2+]in oscillations were observed. High-potassium depolarization led to a Ca2+-antagonists-sensitive rise of [Ca2+]in. Both caffeine++ (5-10 mmol/l) and thymol (lmmol/l) initialized transient increase of [Ca2+]in. Mechanisms of [Ca2+]in homeostasis in heart muscle cells were discussed.

Animals↗
PubMedDate not supplied

[Biochemical indices of the blood in patients with tuberculosis combined with chronic opisthorchiasis].

The paper presents the results of a combined biochemical study of 111 patients suffering from recently diagnosed pulmonary tuberculosis combined with chronic opisthorchiasis (main group) and 36 tuberculosis patients without infestation (control group). It was established that the mixed abnormality was significantly more often accompanied by hypoproteinemia and hypoalbuminemia. The thymol and mercury-chloride sublimate tests produced positive results in 22.5 and 9.0% of the main group patients, respectively. Increased bilirubin content and alanine and aspartate aminotransferase activities were registered in both groups of patients only during medical treatment. Thus, the fact of altered protein forming function of liver in patients with tuberculosis combined with chronic opisthorchiasis has been established, which may be due both to tuberculosis infection and the Opisthorchis invasion. Insignificant hepatic protein-forming dysfunctions are not contraindications for long-term tuberculosis therapy.

Adult↗
PubMed1989

[Free fatty acids in the serum of patients with alcoholism].

Blood free fatty acids and their composition were investigated in 25 alcohol abusers hospitalized for detoxication. Blood samples were collected at the admission to the hospital and following detoxication therapy. Free fatty acids were assayed with Dole's technique whereas their composition with gas chromatography. Liver functioning was evaluated with the aid of the following tests: AspAT, AlAT, AP, bilirubin concentration, and thymol test. An increase in free fatty acids concentration was seen in 12 out of 25 patients prior to detoxication. Blood serum free fatty acids were within normal limits in all except one patient after detoxication. A decrease in linoleic acid levels was seen in both total fatty acids and free fatty acids before detoxication. It is more marked in total fatty acids than in free fatty acids and persists after detoxication. Linoleic acid content in free fatty acids returns to the normal values following detoxication. An increase in oleic acid level accompanying a decrease in linoleic acid concentration is probably secondary to the stimulation with hydrogen excess formed during alcohol fermentation.

Adult↗
PubMed1989

[Clinico-laboratory characteristics of the cholestatic form of acute alcoholic hepatitis].

Altogether 108 patients with acute alcoholic hepatitis (AAH) were examined. Of these, 14 patients (13%) presented with the cholestatic pattern of AAH, 45 with extrahepatic cholestasis, and 45 were healthy. As compared with the total patients' group with AAH, the patients with the cholestatic form consumed alcohol in greater amounts. Due to intensive jaundice, 50% of the patients were admitted by error to the infectious clinic and 32% to the surgical one. The disease runs a comparatively grave course, the general conditions gets deteriorated, the body temperature rises, the patient senses pains in the right hypochondrium, skin pruritus is lacking. As compared with other patterns of cholestasis, cholestatic AAH is characterized by a higher thymol test, higher levels of cholesterol, low density lipoproteins, activation of gamma-glutamyl transpeptidase and aspartate aminotransferase and by a lower level of leukocytes, bilirubin, free fatty acids and alkaline phosphatase. Verification of the diagnosis demands the use of certain up-to-date instrumental methods. To identify the cause of cholestasis, great diagnostic significance is attached to echography.

Acute Disease↗
PubMed1989

[Clinical and ultrasonic diagnosis of diseases of the hepatobiliary system in chronic alcoholics].

Functional and structural changes of the hepato-biliary system were assessed in 56 persons with different forms of chronic alcoholism. In patients with prenosological forms of chronic alcoholism despite the absence of clinical manifestations and functional disorders of the liver, phenomena of fatty infiltration of the liver were revealed by means of ultrasound examination. Patients with chronic alcoholism of grade II and III showed an increase of the activity of aminotransferases, increased values of the thymol test, hypoalbuminemia, disorders of lipid metabolism. Phenomena of chronic hepatitis and liver cirrhosis were revealed by ultrasound examination in these patients.

Alcoholism↗
PubMed1977

Natural history of acute hepatitis B in previously healthy patients: A prospective study.

A prospective study of the natural history of acute hepatitis B was performed in 38 patients. Fatigue started median 4 weeks, abdominal symptoms median 3 weeks and signs of cholestasis median 2.5 weeks before peak SGPT values were reached. Extrahepatic manifestations occurred throughout the prodromal stage, the presence of arthropathy, urticaria or skin rashes was not related to the biochemical severity of liver disease. The higher the the maximal values of serum bilirubin and/or the older the patient, the longer the period of bilirubin elevation; a maximal bilirubin elevation less than 20 X the upper limit of normal was associated with normalisation of serum bilirubin within 6 weeks. No such correlations were found between the height of serum glutamic pyruvic transaminase, alkaline phosphatase, thymol turbidity and cholesterol levels and the subsequent duration of their abnormality. The elevation of alkaline phosphatase as well as the abdominal complaints might partly be caused by gastro-intestinal involvement. Immobilisation before peak SGPT was attained was associated with normalisation of serum glutamic pyruvic transaminase levels within 8 weeks after peak levels. 37 patients recovered completely. In one HBs-antigenemia and slight SGPT elevation persisted. Long term follow up was possible in 33 patients for 4 to 7 years, median 5 years.

Acute Disease↗
PubMed1987

[Evaluation of the functional status of hepatic microsomal enzymes in workers exposed to carbon dioxide and vinyl chloride by using the antipyrine test].

Examined were 42 CS2-exposed subjects, 34 CV-exposed subjects and 14 healthy people (control group) with no exposure to chemicals that might change the hepatic microsomal enzymes activity. All the subjects underwent antipyrine test (clearance and plasma half-time). The activities of AspAT and AlAT aminotransferases, alkaline phosphatase, gamma-glutamyl-transferase, and the value of thymol test and BSP were determined. Furthermore, in CV-exposed subjects, the organic clearance for N 2,4-dimethyl-acetanilide-iminodiacetic acid was determined. It was demonstrated that the mean value of antipyrine clearance was significantly reduced in CS2-exposed group, whereas in CV-exposed subjects the mean clearance value differed significantly from the control group value. The pathological values of antipyrine clearance were found in 12 CS2-exposed and only in 3 CV-exposed subjects. Pathological findings of the Hepida test were found in 3 CV-exposed subjects who exhibited normal antipyrine clearance values. This would imply that the Hepida test detects disturbances of different type in hepatic cells functioning, as compared to the antipyrine test. The studies confirmed that the antipyrine test performed in a simplified version (a single biological sampling) bears the same reference value for the detection of disturbances in hepatic microsomal enzymes as the traditional version of the test calling for repeated collection of blood or saliva.

Adult↗
PubMed1988

Examination of the substrate specificity of cloned rat kidney phenol UDP-glucuronyltransferase expressed in COS-7 cells.

A cDNA encoding a rat kidney UDP-glucuronyltransferase (UDPGT) was subcloned into the vector pKCRH2. Expression driven by the SV40 promoter produced enzymatically active UDPGT in COS-7 cells cultured in vitro. The appearance of enzyme activity was associated with an immunodetectable glycosylated UDPGT protein (Mr 53 kDa) in the cells. The expressed enzyme rapidly catalyzed the glucuronidation of 1-naphthol, 4-methylumbelliferone, and 4-nitrophenol. Studies using more than 20 compounds showed that the cloned UDPGT exhibited a restricted specificity towards planar phenols. A crude description of the molecular conformation of 4-alkylphenols accepted within the active site of the protein was obtained. The glucuronidation of morphine, thymol, menthol, testosterone, androsterone, or estrone was not catalyzed by this enzyme.

Animals↗
PubMedDate not supplied

Studies concerning the ergogenic value of protein supply and 1-carnitine in elite junior cyclists.

The effects of protein supply and 1-carnitine were recorded in a group of junior elite cyclists by a prospective double blind placebo controlled trial for six weeks (Refit milk powder containing about 90% proteins and 5% mineral salts-Ca, P, K, Na and 1-carnitine tablets). Seven top junior cyclists received orally 1 g protein/kg.d as supplement of food for six weeks and 2 g 1-carnitine, also orally, per day, 10 days before an important competition; other 7 cyclists received the same regimen as placebo. Significant and favourable changes were recorded in the treated group for the strength index, lean body mass, fat mass, TWP (total work-kgm, performed on cycloergometer 1', serum proteins, serum Hb, serum calcium) changes which did not appear in the control group. Serum cholesterol, creatinine, thymol test and serum GPT did not change significantly in either group. All athletes were under medical supervision, had a controlled training programme and food and received daily only vitamins and mineral salts. The treated group supported better the stress-induced efforts and obtained higher performances in the international competition which took place at the end of the experiment. Based on these data the authors recommend a supply of protein ratio up to 3.2 g/kg.d, six weeks before competition and 2 g 1-carnitine daily, also orally, 10 to 14 days before competition, including the day of competition, for cyclists, in order to improve the biological potential of the body.

Bicycling↗
PubMed1988

[Evaluation of the health status of dry cleaning plant workers exposed to tetrachloroethylene].

Among 133 chemical laundries workers and 107 persons from a control group internal medical examinations together with electrocardiography record and laboratory investigation were performed. For the assessment of liver functions designations AlAT, AspAT, FA, prothrombin index, bilirubin and iron content in serum, proteinogram and thymol turbility test were prepared and carried out. No statistically remarkable differences between the group of women exposed to PER and the control group were found. In the study group of males statistically noticeable differences were related to mean values and the number of deviations connected with aminotransferases. An increased activity of these enzymes was observed in persons exposed to high instantaneous concentrations of PER. The author reflects upon the usefulness of performing biochemical investigation of the liver function during prophylactic examination of laundry workers exposed to PER.

Adult↗
PubMed1987

[Correlation of pathologic laboratory values in patients with cardiovascular diseases--consequences for diagnosis in general practice].

Coincident pathological parameters were selected from 24 laboratory-diagnostic parameters of a second stage of diagnostics after x-rays screening concerning heart and vessel diseases tested by a check representative constellation in the shape of relative frequency was determined. For the parameters cholesterol, uric acid and glucose, belonging to the metabolic syndrome, it was possible to demonstrate relations to the erythrocyte sedimentation rate. The transaminases ASAT and ALAT especially showed correlations of pathological values among one another. There were found out one-sided relations for instance concerning the proportion of transaminases, thymol turbidity test as well as creatinine to the erythrocyte sedimentation rate. The connections as has been proved appeared in female cardiac patients in a more distinct way. The results, which were interpreted in the context of a further mathematic-statistical analysis, allow the conclusions for an efficient indicational application of clinical chemical research methods in chronic heart and vessel diseases in practice.

Adolescent↗
PubMed1987

[Use of hemosorption in the treatment of patients with chronic liver diseases].

The influence of hemosorption in multimodality therapy of 71 patients with chronic liver diseases was studied. Together with clinical improvement of the health status hemosorption was followed by a decrease in the concentration of bilirubin, cholesterol and gamma-globulins, ALT activity, the level of the thymol test, IgA, IgG and CIC. The content of T-lymphocytes and their subpopulation changed very little. Hemosorption efficacy was more marked in chronic active hepatitis and at initial stages of biliary cirrhosis than at the dystrophic stage of biliary cirrhosis. The use of hemosorption in multimodality therapy of patients with chronic liver diseases contributed to faster clinical improvement, return of biochemical and immunological indices to normal.

Adult↗
PubMedDate not supplied

[Lecithin-cholesterol-acyltransferase activity in chronic liver diseases].

Activity of lecithin-cholesterol-acyl transferase (LCAT) was distinctly decreased in chronic impairments of liver tissue, especially under conditions of liver cirrhosis and hepatocellular cancer. After treatment with "essentiale forte" the enzymatic activity was elevated only in the patients with chronic hepatitis. The LCAT activity correlated with content of albumins, gamma-globulins and the data of thymol test. Estimation of the LCAT activity might serve as a diagnostic test in chronic liver tissue diseases.

Adult↗
PubMed1979

[Clinical chemical parameter changes in patients with liver metastases].

Certain biochemical serum parameters: GOT, GPT, LAP, HK, AP and Regan isoenzyme, GGTP, CE, ESR, Weltman test, thymol test, serum bilirubin and urine urobilogen were determined in 39 patients with different localization of malignant processes in the abdominal cavity (stomach, large intestines, pancreas, ovaries). The patients were subdivided into two groups, depending on the presence or absence of liver metastases, confirmed at laparatomy, laparascopy or necropsy material examination. The results revealed that in patients with liver metastases AP, CE, GOT, GGTP, ESR and Weltman test are most commonly and simultaneously abnormal. In patients without liver metastases, those indices are also changed but to a lesser degree, whereas LAP and Regan isoenyzme are with elevated activity in a higher per cent of these cases, than in the patients with liver metastases, being in unison with literature data. The determination of the above biochemical parameters could direct the clinicist to the presence of liver metastases but the more reliable diagnostic methods as laparascopy and laparatomy cannot be substituted for.

Alanine Transaminase↗
PubMed1986

[Effect of carsil and legalon in treating chronic liver diseases].

The clinical effect from the treatment of 48 patients with carsil and 24 patients with legalon is studied. The patients were subdivided into three groups in the base of the clinical, laboratory-chemical and instrumental examination: light hepatic lesions--hepatic steatosis, chronic persisting hepatitis (ChPH), post-hepatitis states, chronic active hepatitis (ChAN) and cirrhosis of the liver (CL). Both preparations were administered 3 three times, 2 tablets daily for 3 months. The results obtained revealed that the bioflavonoid preparation carsil did not much differ in its clinical effect from the preparation legalon. The preparations carsil and legalon had a good effect, but not with statistical significance, on the subjective symptoms--pain, sense of heaviness and upper dyspeptic syndrome in the patients studied. Both preparations had a good effect on the biochemical indices: thymol test, SGOT, gamma-globulins, immunoglobulin G, blood bilirubin. The three month administration of carsil and legalon did not essentially change the histological findings in liver. The preparations carsil and legalon are indicated in light and moderate hepatic affections--hepatic steatosis, ChPH, post-hepatitis states. No contraindications have been reported for the administration of those preparations even in advanced hepatic disorders where they could be included as "basis" therapy.

Adult↗
PubMed1979

[Late sequels EPH gestosis (author's transl)].

The courses of the following three groups of pregnancies were studied in the context of 146 women, with twelve years, on average, having elapsed from their first pregnancies: 1. Normal pregnancies without EPH gestosis (58 cases); 2. Pregnancies with EPH gestosis (58 cases); 3. Pregnancies with eclampsia (30 cases). - All clinical findings and statistical calculations were evaluated by means of electronic data processing. - Average systolic and diastolic blood pressures were established in follow-up checks, usually twelve years from pregnancy. They were normal, following normal pregnancies. Statistically secured blood pressures measured from patients with gestosis or eclampsia during their first pregnancy were higher than those recorded from patients in a control group, but pathological values were established in but few cases. - The following, more specialised checks proved or particular importance for an evaluation of EPH gestosis and its effects on liver function following pregnancy: serum electrophoresis, thymol test, SGOT, SGPT, direct and indirect bilirubin, blood and urinary sugar, serum cholesterol, and total fats. - The above results are likely to show that EPH gestosis and its effects are relatively well tolerated by the liver. However, discrete disorders characterised by dysproteinaemia without cellular decay and icterus may occur in certain instances.

Cardiovascular Diseases↗