ABSTRACT
To compare the invasive and non-invasive tests for gastric acid secretion, 30 appearently healthy Myanmar male volunteers (25-45 years) were studied. After overnight fasting, they ingested 150 mg of Mg++ metal suspended in 3 mlof glucose and 100 ml of 7
ethanol on the first day and alcohol without Mg++ onthe second day. Basal gastric juice (by Ryle's tube), urine and breath H2 were collected. Another 11 samples of gastric juice and breath H2 were collected aftermeal for 180 minutes at 15 minute intervals. Hourly urine collection was also done for three hours. Acid contents of gastric juice aand urine were determined byconventional titraton method. Breath H2 was analyzed by microanalyzer (Quintron,Model 12 microlyzer). Correlation coefficients: between maximal acid output (15-60 minutes) and 2nd hour urine acid output-0.50(p<0.05); peak acid output (15-60minutes),0.44(p<0.05); and maximal acid output and breath hydrogen test (75-90 minutes), 0.40 (p<0.05). Thus non-invasive tests (Oral Magnesium Breath Hydrogen Test and urine acid output determination) may also be used as alternative tests in studying the gastric acid secretion.
Subject(s)
MyanmarABSTRACT
To explore the reaction and attitude of preclinical lady students towards certain aspects of female reproduction, custom-made questionnaires were group-administered to two batches of Second MBBS students (mean age + or - SD: 20.3 + or - 0.5 yr; n=443) of Yangon Institutes of Medicine, and to the First and Second Year students (19.9 + or - 1.0 yr; n=114) of Yangon Institutes of Pharmacy and Paramedical Sciences. Menarche alarmed or upset about half (47.03
) of therespondents while 42.9
reported indifference. Almost 80
of the respondents hadprior knowledge about menarche. The proportion of respondents who accepted menstrual periods as natural (32.9
) was about the same as those distressed by the periods (32.7
). Those expressing positive attitudes towards marriage, childbearing and womanhood outnumbered those expressing negative ones (30
vs 12.2
, 43.6
vs 11.1
, 41.4
vs 20.8
respectively). Certain differences in the responses amongthese groups of Myanmar students and a group of Japanes students (n=28, exposed to the same question-naires) were highlighted and the implications discussed.
Subject(s)
Menstruation , Reproductive MedicineABSTRACT
To study the acute cardiovascular effects of coffee drinking, 37 apparently healthy Myanmar volunteers of both sexes (25-45 years) were administered a cup of coffee (after 5 day abstinence from caffeine-containing beverages) or a cup of milk (vehicle control) on two separate days. the order of administration was randomized. Coffee was freshly prepared by adding 2.5 g of instant Nescoffee (approximately equivalent to 2 teaspoonfuls) to a cup of milk (10 g milk powder + 8 g sugar in 150 ml of hot boiled water). The heart rate and rhythm (by 3 minute-auscultations and ECG recordings at various time points), supine brachial arterial bolld pressures (indirect sphygmomanometry) and the respiratory rate (by auscultation) were determined before and every 15 minutes for a total of 90 minutes after administering coffee or mild, Both the systolic and diastolic blood pressures rose progressively and significantly after drinking coffee (SBP: from 103.7 to 113.2 mmHg and DBP: 65.2 to 75.3 mmHg; mean values; p<0.001, Student's paired t test)but not after drinking milk (SBP: from 104.3 to 105.9 mmHg and DBP: 65.3 to 67.2 mmHg; NS). There were no significant changes in the heart rate, or the respiratory rate after drinking coffee or milk. Forty per cent of subjects gave the subjective feeling of palpitation after drinking coffee but none gave this complaint after drinking milk. It was concluded that with this dose of coffee, there was no apparent dysrhythmogenic effect, but the hypertensive effect was appreciable.