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Biomedical subjects

M Sheth

Publications and source records attributed to M Sheth.

9 recordsLinked to original sources
PubMed2000

Hazard analysis and critical control points of weaning foods.

Hazards and critical control points were identified during the preparation, feeding and storage of weaning foods fed to the children (6-24 months) belonging to low income group (LIG) families using survey methods, spot and indepth observations and microbial analysis. High microbial counts were obtained for the weaning food samples procured from the families that were rated as poor for both personal hygiene and environmental sanitation. Food samples that were held at ambient temperature (25-35 degrees C) showed high counts of coliforms, AMCC, yeast and mold, Staphylococcus aureus and Bacillus cereus. Spice mixtures and mop samples also revealed high counts for all these organisms. Coliforms were not isolated from the water samples of all the 10 households. However, a high count of Bacillus cereus (10(3-5)/ml) was observed in water samples of two selected households. The hazards and critical control points identified were high initial contamination of raw foods, poor environmental sanitation and personal hygiene, feeding of overnight moist foods stored at ambient temperature and insufficient steaming of these foods.

Bacillus cereus↗
PubMed1994

Circulatory and catecholamine changes during head-up tilt testing in neurocardiogenic (vasovagal) syncope.

Changes in heart rate, arterial pressure, norepinephrine and epinephrine levels were compared in 19 consecutive patients (10 men and 9 women, mean age 46 +/- 16 years) with neurocardiogenic syncope and 11 age- and sex-matched control subjects (5 men and 6 women, mean age 49 +/- 15 years) during head-up tilt testing. Norepinephrine and epinephrine levels were measured at the baseline supine position, in the initial upright position, every 90 seconds during the 70 degrees upright tilt, at the time of termination due to hypotension and syncope (or at 15 minutes in control subjects), and at 40 seconds and 1 minute and 40 seconds in the supine position after terminating the head-up tilt test. Baseline norepinephrine, epinephrine and heart rate were slightly higher in patients. Despite a significant decrease in mean arterial pressure during head-up tilt testing in patients (51 +/- 20 mm Hg; p < 0.001), norepinephrine levels in patients and control subjects at the time of terminating the head-up tilt test were comparable (459 +/- 204 vs 473 +/- 172 pg/ml). A fivefold increase in epinephrine levels (73 +/- 53 to 345 +/- 260 pg/ml; p < 0.01) were seen in patients, whereas control subjects had insignificant change (38 +/- 16 to 65 +/- 44 pg/ml). It is concluded that diminished neuronal sympathetic activity and enhanced adrenomedullary activity is demonstrated during head-up tilt testing in patients with neurocardiogenic syncope.

Adult↗
PubMed1990

Rosacea and ulcerative colitis: a possible association.

Although rosacea was formerly believed to be associated with gastrointestinal upsets, no one any longer finds a significant association between rosacea and the intestinal tract. We describe four patients with a combination of ulcerative colitis and rosacea. In all four, ulcerative colitis preceded the onset of severe papulopustular rosacea, and we therefore feel that the severity of rosacea could have been due to the associated bowel disorder. In one, the severity and poor initial response of rosacea to treatment was clearly related to the activity of the ulcerative colitis, and the rosacea improved only after proctocolectomy. While it is possible that this purported association is fortuitous, we report these cases in the hope that others may have seen this combination of diseases, to our knowledge previously unreported.

Adult↗
PubMed1980

Optimal timing of surgical intervention in patients with acute pancreatitis associated with cholelithiasis.

In evaluating patients with acute pancreatitis, disproportionately high serum amylase values in comparison to physical findings of peritonitis of the upper part of the abdomen and the rapid return to normal values and the lack of a history of alcohol ingestion should be viewed as findings highly indicative of pancreatitis associated with cholelithiasis. Diagnostic roentgenologic procedures can be initiated soon after admission of the patient, with an intravenous cholangiogram or oral cholecystogram, depending upon the feasibility of oral intake, in patients without jaundice. Expectant treatment is both safe and preferable, so that surgical treatment for disease of the biliary tract is performed after the diagnosis is established in the same hospitalization period.

Acute Disease↗