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Biomedical subjects

G Arapakis

Publications and source records attributed to G Arapakis.

14 recordsLinked to original sources
PubMed1986

Low dominance and high intropunitiveness in ulcerative colitis and irritable bowel syndrome.

Two experimental groups of patients with ulcerative colitis (UC) and irritable bowel syndrome (IBS) were compared for hostile personality characteristics and dysthymic states with physically ill patients. Both experimental groups were found to be less dominant, more intropunitive, more anxious and more depressed than the control group. IBS patients, however, were more dominant and less intropunitive than UC patients. Low dominance has been associated with psychosomatic illnesses, and high intropunitiveness with neurotic formation. Both UC and IBS patients have been found to be severely neurotic, a fact reflecting the concurrence of the psychosomatic and neurotic defences in these diseases. More IBS patients had premorbid psychiatric symptoms in comparison with controls and UC patients.

Adult↗
PubMed1979

Rapid diagnosis of anaerobic infections by gas-liquid chromatography.

It was postulated that the short chain fatty acids (SCFA) produced by anaerobic bacteria might serve as microbial markers in purulent material. Eighteen pus specimens from various sources were analysed by gas-liquid chromatography (GLC), and the SCFA detected were compared with the microorganisms isolated by conventional methods. It was found that the detection of propionic, isobutyric, butyric, or isovaleric acids by direct GLC of pus specimens is strong evidence for anaerobic infection but not specific for Bacteroides fragilis. It was also shown that the presence of succinic acid in pus specimens does not necessarily indicate infection by anaerobes. It can be concluded that direct GLC of purulent material provides a rapid and reliable presumptive method for the differentiation between anaerobic and aerobic infections.

Bacterial Infections↗
PubMed1979

Globin chain synthesis in sickle beta-thalassaemic bone marrow and reticulocytes.

Globin chain synthesis was studied in reticulocytes and bone marrow erythroid precursors in four sickle beta-thalassaemic Greek patients. Significant globin chain imbalance was found in reticulocytes (alpha/gamma + beta A + beta S = 2.20 +/- SD 0.16) and bone marrow (alpha/gamma + beta A + beta S = 1.58 +/- SD 0.11) after two hours' incubation. There was evidence of contamination of the gamma, beta A, and, to a lesser extent, of the beta S chain by non-haem proteins. The contamination was more obvious in chromatograms obtained from whole cell bone marrow samples and could partially explain the lower alpha/non-alpha ratio found in bone marrow.

Anemia, Sickle Cell↗
PubMed1977

Postoperative platelet function in patients on small subcutaneous doses of heparin.

Several platelet function tests were performed on 31 patients undergoing major operations, who recieved prophylactically small subcutaneous doses of heparin. A group of 15 similar patients without heparin served as controls. It was found that postoperatively in both groups (a) the platelet retention in glass bead column was significantly increased (p less than 0.001), (b) the platelet aggregation by ADP 1 micronM was slightly increased, (c) the collagen-induced aggregation, ADP release and the bleeding time remained unchanged and (d) the platelet counts decreased in the first 2 postoperative days and increased thereafter. There was no difference between patients on heparin and controls.

Adenosine Diphosphate↗
PubMedDate not supplied

Variegate porphyria with unusual neurologic manifestations.

A 62-year-old man with variegate porphyria is reported. This is the first case to be described in Greece. Apart from the common features of the disease this patient exhibited sensory loss of the syringomyelic type. Though variegate prophyria with neurologic manifestations is not uncommon syringomyelic type of sensory loss is most unusual.

Diagnosis, Differential↗