Comparison of PCB intoxication in animals with human symptoms.
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Animals↗
Biomedical subjects
F Komatsu
Publications and source records attributed to F Komatsu.
Abnormal electrocardiographic findings in apheresis donors.
Electrocardiographic (ECG) monitoring was performed on 291 donors during apheresis. Twenty-one donors (7.2%) had clinical symptoms such as discomfort, nausea, chill, numbness, and paresthesia, and 13 of this group exhibited ECG abnormalities, such as tachycardia, bradycardia, and other abnormal wave patterns. The donors with tachycardia and slight bradycardia had no symptoms. Ten donors had moderate to severe bradycardia with pulse rates less than 50 beats per minute; four of them had severe bradycardia (less than 45 beats per minute), and three of the four exhibited severe hypotension, vomiting, fainting, or convulsion. Other abnormal ECG changes, such as supraventricular and ventricular premature contractions, right bundle branch block, ST segment elevation or ST segment depression, and tall, flattened, or inverted T waves were observed in 29 donors (10%). These changes were not associated with symptoms. Only three of these donors complained of discomfort or chest heaviness. The abnormal waves appeared more often in granulocytapheresis donors than in plateletapheresis donors.
Adult↗
SHIN, a low frequency red cell antigen, found in two Japanese blood donors.
A low frequency red cell antigen, SHIN, was detected in two Japanese blood donors. Red cells of the first propositus reacted, in pretransfusion tests, with the serum of a previously untransfused male patient. The second propositus was disclosed when anti-SHIN was used to screen red cells from 3,000 random blood donors in Tokyo: a frequency of 0.03% in this population. Family studies showed SHIN to be inherited as an autosomal dominant character and not to be part of the MNS, FY, JK or P1 blood group systems. Anti-SHIN is not a common antibody in normal sera but was found in about 10% of multispecific sera used in investigation of low frequency antigens.
Asian People↗
Leptin resistance conferred by a combination of single nucleotide polymorphism and the adoption of a Western lifestyle in urban areas of Thailand.
OBJECTIVES: An increasing number of lifestyle disorders have emerged in response to the rapid urbanization that has occurred in Thailand. Recently, leptin resistance has been nominated as a possible marker for the onset of metabolic disorders in Asian countries. The research aimed to assess the relationship between leptin-resistance and environmental and/or genetic factors by comparing urban and rural inhabitants in Thailand. METHODS: A total of 212 age- and sex-matched subjects from an urban area (Bangkok) and from rural areas (Sai Noi) participated in the study. Anthropometric measurements, blood biochemistry, single nucleotide polymorphism analyses, and interviews concerning lifestyles and dietary habits were conducted individually. Backward elimination multiple regression analyses and least trimmed sum of square methods were used to estimate the effects of possible factors. RESULTS: A transition of staple food from rice to bread (decreased rice intake; p < 0.01 and increased bread intake; p < 0.05) was significant in urban areas. Leptin levels were higher in urban groups, with a significant difference in women (p < 0.001 in women and p = 0.06 in men), but not in men. Predictors selected for leptin-resistance in women were genotypes of UCP2, PPARg2, bread intake, living area, and smoking habit (r = 0.510); in men, genotypes of UCP2 and UCP3p, smoking habit, and rice intake (r = 0.315). CONCLUSIONS: Urban women with del/del type of UCP2 exhibited significant leptin resistance. A combination of urbanization and UCP2 genotype were considered to be responsible.
Anthropometry↗