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H B Greizerstein

Publications and source records attributed to H B Greizerstein.

24 records · Page 2Linked to original sources

Tolerance to ethanol: effect of congeners present in bourbon.

Fish were exposed to water and to ethanol or bourbon solutions of the same ethanol concentration (0.1, 0.2, 0.4, 0.6, or 0.8 g/100 ml) during 6 h and then tested in 3.1 g/100 ml ethanol for loss of righting reflex or overturn point. The content of ethanol in the brain at overturn was determined for each fish. Although the ethanol brain levels at overturn of bourbon-exposed fish were higher than those of the ethanol group, no significant differences were observed between the two groups. Moreover, there was a tendency for the bourbon fish to take longer times to overturn than the ethanol fish. These findings indicate that the congeners present in bourbon did not affect significantly the development of tolerance to ethanol in goldfish.

Acetaldehyde↗

Standardization of a method for the routine analysis of polychlorinated biphenyl congeners and selected pesticides in human serum and milk.

A methodology is presented for the routine determination of specific polychlorinated biphenyl (PCB) congeners in serum and milk samples. The procedures include standardized extraction, cleanup and quantitation by high-resolution gas chromatography (GC) and comprehensive quality assurance program to minimize systematic and erratic errors. The analyses of 68 PCB congeners and three pesticides, p,p1-dichloro diphenyl dichloro ethylene (DDE), hexachlorobenzene (HCB), and Mirex, at part-per-billion levels include the addition of surrogate congener standards (IUPAC isomers #46 and #142), extraction with hexane after protein precipitation, cleanup with Florisil, and analysis by GC with capillary column and electron capture detection. Quantitation is based on calibration standards and response factors using isomers #30 and #204 as internal standards. The quality control activities consist of analyses of samples in batches of 6 to 10 simultaneously with quality control (QC) samples. The quality assurance program checks that the procedures are under control by the use of control charts and set the criteria for data acceptability. The detection limits for the congeners and pesticides associated with the analyses of 500 serum samples and of 100 milk samples are reported. In addition, typical profiles of congener distribution in both matrices are illustrated.

Calibration↗

Alcohol consumption and systolic blood pressure in the general population.

Survey data was analyzed to examine the relationship between alcohol consumption and systolic blood pressure (SBP) in the general population. Among older people, SBP is higher for heavier drinkers. Among females, SBP is slightly lower for the light drinkers than for abstainers.. These effects are measured with obesity, race, and menopause, use of birth control pills, smoking, and anxiousness held constant. The reasons for these effects are not clear.

Adult↗