Haya Zaltzberg MSc, Yoram Kanter MD, PhD, Michael Aviram DSc and Yishai Levy MD
Background: Atherosclerosis and microvascular complications in patients with non-insulin-dependent diabetes have been linked to increased oxidative stress. The glutathione redox cycle is a major determinant of the antioxidative capacity of plasma and its constituents.
Methods: We attempted to investigate plasma oxidation and plasma and erythrocyte glutathione and glutathione enzymes in 20 patients with NIDDM, compared with euglycemic matched controls. Plasma oxidation was analyzed both basally (without) and as induced by 2,2'-azobis,2-amidopropane hydrochloride measured by the generation of thiobarbituric acid reactive substances and lipid peroxides.
Results: There was a significant increase in oxidation both basally (without) and as induced by AAPH. Plasma glutathione was lowered by 50% (P<0.01) and erythrocyte glutathione peroxidase, glutathione s-transferase and glutathione reductase activities were lower by 30%, 27% and 46%, respectively (P<0.01) in the patients with NIDDM.
Conclusions: Confronted by increased oxidation, patients with NIDDM show an abnormal plasma and erythrocyte antioxidative capacity, which may result in an accelerated rate of complications.
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NIDOM= non-insulin-dependent diabetes mellitus
Zvi Fireman MD, Victor Gurevich MD, Daniel Coscas MD, Yael Kopelman MD, Arie Segal MD and Amos Sternberg MD
Background: Chronic occult blood loss from the gastrointestinal tract is widely accepted as a major cause of iron deficiency anemia.
Objectives: To evaluate the diagnostic yield of gastroscopy, colonoscopy and fecal occult blood testing of hospitalized IDA patients, plus follow-up.
Methods: IDA was defined as hemoglobin <12.5 g/dl (men) and 11 g/dl (women), and serum iron <50 g/dl. The study group comprised 90 patients (42% male) with a mean age of 65±15 years and mean Hb 8.1 g/dl.
Results: Gastroscopy and colonoscopy revealed a bleeding source in 28.8% and 14.4% respectively. Gastrointestinal symptoms were found in 23% of patients with diseases of the upper gastrointestinal tract and in 15.3% of the lower. The sensitivity of fecal occult blood tests in detecting lesions in the lower and upper GI tracts was 100% and 30.7% respectively. Forty-four patients (48.9%) were discharged from the hospital with IDA of unknown origin. Over the following year, 20 of the 44 patients required further hospitalization, and of these, 13 were found to have anemia. Of the remaining 24 patients who were not hospitalized again, 15 had anemia. Four patients (9%) had significant gastrointestinal lesions and two died during the follow-up.
Conclusions: Fecal occult blood is a sensitive examination for lower but not for upper GI tract lesions.
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IDA= iron deficiency anemia
Sophia Zlatkin MD, Suhail Aamar MD, MSc, Galia Specter MD, David Leibowitz MD, Natalia Simanovsky MD, Dror Yeshurun MD and Samuel N Heyman MD
Background: Takayasu's arteritis is a rare, probably underdiagnosed disorder in Israel.
Objective: To evaluate the contribution of computerized tomography to the diagnosis of Takayasu's arteritis.
Methods: A retrospective analysis of the diagnostic process was recently conducted in three consecutive patients diagnosed over the last 3 years.
Results: Three females of Arab origin with Takayasu's arteritis were recently identified by CT. In two of the three patients the imaging procedure was performed for different working hypotheses, and the radiological findings (wall thickening, perivascular edema, and segmental intraluminal obliteration of the aorta and its major branches) were unexpected. In these two patients, repeated physical examination following the imaging procedure disclosed initially missed findings that could have led to an earlier consideration of Takayasu's arteritis (bruits above the epigastrium, subclavian and carotid arteries, and absent brachial pulses). Retrospective analysis of the patients' symptoms following CT revealed the true nature of the patients' misinterpreted complaints (e.g., typical abdominal angina replaced a faulty obtained history compatible with renal colic or dyspepsia). In the third patient CT was performed for the evaluation of an epigastric bruit associated with constitutional complaints. The diagnosis of aortitis, based upon the presence of diffuse aortic wall thickening and edema of the surrounding fat, without intraluminal narrowing, could have been missed by angiography, the traditional "gold standard" diagnostic procedure. All three patients complained of ill-defined epigastric abdominal pain and had epigastric tenderness during examination.
Conclusions: CT has the potential for detecting Takayasu's disease and may be superior to angiography, particularly at the early non-obliterative stage. Since the diagnosis of Takayasu's disease is rarely considered, the expanding use of CT and MRI technologies may reveal missed cases that are evaluated for other plausible diagnoses. The true incidence of Takayasu's arteritis in Israel may be much higher than reported, particularly in the Arab population. Our findings suggest that epigastric tenderness, originating from active inflammatory reaction in the abdominal aortic wall, should be considered as a diagnostic criterion of Takayasu's aortitis.
Yona Amitai MD, Daniel Katz MD, Matityahu Lifshitz MD, Rosa Gofin MD, Maya Tepferberg MSc and Shlomo Almog PhD, published in IMAJ.
Background: Prenatal lead exposure (umbilical cord blood lead concentration 10 (μg/dl) may impair cognitive development. Childhood lead poisoning is infrequent in Israel, and there are no data on lead exposure in immigrants to Israel from the former Soviet Union.
Objectives: To evaluate prenatal blood lead concentrations in Israeli newborns whose mothers were born in Israel and in those whose mothers recently immigrated from Russia, and to compare data of prenatal lead exposure in Israel with those reported from other countries.
Methods: We compared the UCBLC of 35 newborns of new immigrants from Russia with a group of 35 newborns whose mothers were born in Israel. Venous BLC was also measured in 50 mothers. Data are compared with similar reports on prenatal lead exposure internationally.
Results: The UCBLC in all 70 newborns (mean±SD) was 3.53±1.6 μg/dl, and mothers' BLC (mean±SD) was 3.90±1.39 μg/dl. UCBLC and BLC in the 50 mother-newborn pairs correlated (γ=0.36, P<0.01). All newborns except one had UCBLC<8.0 μg/dl. There was no significant difference between UCBLC in the two groups.
Conclusions: Prenatal lead exposure among the study subjects in both groups was low. In this sample the newborns of mothers born in Israel and those whose mothers recently immigrated from Russia were not found to be at risk for lead poisoning. Prenatal lead exposure in this sample was low compared to that reported from various parts of the world.