Identification of mistakes and their correction by a small group discussion as a revision exercise at the end of a teaching module in biochemistry.

Background. Graduate medical students often get less opportunity for clarifying their doubts and to reinforce their concepts after lecture classes. The Medical Council of India (MCI) encourages group discussions among students. We evaluated the effect of identifying mistakes in a given set of wrong statements and their correction by a small group discussion by graduate medical students as a revision exercise. Methods. At the end of a module, a pre-test consisting of multiple-choice questions (MCQs) was conducted. Later, a set of incorrect statements related to the topic was given to the students and they were asked to identify the mistakes and correct them in a small group discussion. The effects on low, medium and high achievers were evaluated by a post-test and delayed post-tests with the same set of MCQs. Results. The mean post-test marks were significantly higher among all the three groups compared to the pre-test marks. The gain from the small group discussion was equal among low, medium and high achievers. The gain from the exercise was retained among low, medium and high achievers after 15 days. Conclusion. Identification of mistakes in statements and their correction by a small group discussion is an effective, but unconventional revision exercise in biochemistry.

Assessment of insulin resistance and lipid bound sialic acid in alcoholic liver disease.

Background: Even though alcoholic liver disease is common disease in India, there are only limited reports about insulin resistance and no reports about lipid bound sialic acid in these cases. The present study was designed to evaluate insulin resistance and lipid bound sialic acid levels in patients with alcoholic liver disease Materials and methods: 50 alcohol liver disease cases groups [Fatty liver (n=18), alcoholic hepatitis (n=19) and cirrhosis (n=13)] and 38 controls were enrolled in the study. Fasting insulin, lipid bound sialic acid and liver function test parameters were analyzed in both the groups Results: Insulin, homeostasis model of insulin resistance and lipid bound sialic acid were significantly increased in alcohol liver disease cases compared to controls. Both insulin and insulin resistance were higher in alcoholic hepatitis and cirrhosis group compared to fatty liver group and controls Conclusion: To conclude, the present study demonstrates increased insulin resistance and lipid bound sialic acid in patients with ALD.

Electrocardiographic and echocardiographic changes in perinatal asphyxia.

OBJECTIVE: To study the usefulness of cardiac enzymes in evaluating myocardial damage in perinatal asphyxia. METHODS: Thirty term babies with perinatal asphyxia and without any congenital malformations were selected as cases. They were compared with thirty healthy term babies without asphyxia. Myocardial dysfunction was evaluated using clinical, electrocardiography, echocardiography and cardiac enzymes i.e, troponin-T and CK-MB levels. RESULTS: Among the 30 cases 23 had evidence of myocardial involvement while one baby in the control group had ECG evidence compatible with cardiac involvement. Cardiac enzymes were significantly increased in babies with perinatal asphyxia. The mean level of C-troponin-T among cases and controls were 0.22+/-0.28 and 0.003+/-0.018 while CK-MB levels were 121+/-77.4 IU/L and 28.8 +/- 20.2 IU/L respectively. C-troponin-T had higher sensitivity and specificity compared to CK-MB levels. Moreover, C troponin-T levels correlated well with severity and outcome in babies with perinatal asphyxia. CONCLUSION: C-Tropopnin assay is useful in evaluating the severity of myocardial damage and outcome in perinatal asphyxia.

Cardiac enzyme levels in myocardial dysfunction in newborns with perinatal asphyxia.

OBJECTIVE: To study the usefulness of cardiac enzymes in evaluating myocardial damage in perinatal asphyxia. METHODS: Thirty term babies with perinatal asphyxia and without any congenital malformations were selected as cases. They were compared with thirty healthy term babies without asphyxia. Myocardial dysfunction was evaluated using clinical, electrocardiography, echocardiography and cardiac enzymes i.e, troponin-T and CK-MB levels. RESULTS: Among the 30 cases 23 had evidence of myocardial involvement while one baby in the control group had ECG evidence compatible with cardiac involvement. Cardiac enzymes were significantly increased in babies with perinatal asphyxia. The mean level of C-troponin-T among cases and controls were 0.22+/-0.28 and 0.003+/-0.018 while CK-MB levels were 121+/-77.4 IU/L and 28.8 +/- 20.2 IU/L respectively. C-troponin-T had higher sensitivity and specificity compared to CK-MB levels. Moreover, C troponin-T levels correlated well with severity and outcome in babies with perinatal asphyxia. CONCLUSION: C-Tropopnin assay is useful in evaluating the severity of myocardial damage and outcome in perinatal asphyxia.

Growth hormone in intra-uterine growth retarded newborns.

OBJECTIVE: To study growth hormone levels in IUGR and healthy controls and its association with birth weight and ponderal index. METHODS: We studied 50 Intra uterine growth retarded (IUGR) and 50 healthy newborns born at term by vaginal delivery in JIPMER, Pondicherry, India. Cord blood was collected at the time of delivery for measurement of growth hormone. RESULTS: When compared with healthy newborns, IUGR newborns had higher growth hormone levels (mean +/- SD, 23.5 +/- 15.6 vs 16.2 +/- 7.61 ngm/ml, P = 0.019). A negative correlation was identified between growth hormone levels and birth weight (r2 = - 0.22, P = 0.03) and ponderal index (r2 = - 0.36, P = 0.008). Correlation of growth hormone levels was much more confident with ponderal index than with birth weight. CONCLUSION: At birth IUGR infants display increased growth hormone levels which correlate with ponderal index much more confidently than with birth weight.

Serum pepsinogen I and II levels in various gastric disorders with special reference to their use as a screening test for carcinoma stomach.

INTRODUCTION: The role of serum pepsinogen in the diagnosis of gastric carcinoma is well established. Its role in other common upper alimentary disorders has not been widely studied. The aim of this study was to describe the effect of various gastric disorders on the levels of pepsinogen I, pepsinogen II and pepsinogen I/II ratio, with an emphasis on the diagnosis of carcinoma stomach in the South Indian population. METHODS: A total of 210 patients in seven groups, including one control group, were studied. The groups included patients with carcinoma stomach, Helicobacter pylori gastritis, peptic ulcer, portal hypertensive gastropathy, non-ulcer dyspepsia and erosive gastritis. Serum pepsinogen I, pepsinogen II and pepsinogen I/II ratio were estimated using an enzyme-linked immunosorbent assay technique. RESULTS: Patients with carcinoma of the stomach, when compared with controls, had a significantly lower pepsinogen I level (87.2 microg/L vs. 158.1 microg/L, p=0.0002) and pepsinogen I/II ratio (4.3 vs. 7.2, p = 0.0001). No significant change in pepsinogen levels occurred in the other groups. The cut-off levels of pepsinogen I (115.3 microg/L) and pepsinogen I/II ratio (6.2), determined by THE ROC curve, when applied in parallel provided a sensitivity of 97% and a negative predictive value of 91.4% for the diagnosis of carcinoma stomach. When the tests were applied in parallel, the likelihood ratio of a negative test was 0.06, indicating that individuals without carcinoma stomach were 16 times more likely to have a negative test than those with carcinoma. This fulfilled the essential prerequisites of an ideal screening test. CONCLUSION: Serum pepsinogen estimation is a useful diagnostic tool in the diagnosis of carcinoma stomach. The significance of serum pepsinogen level in portal hypertensive gastropathy, non-ulcer dyspepsia, peptic ulcer, Helicobacter pylori gastritis and erosive gastritis was not established.

Association of lipid profile and body mass index (bmi) in hypertensive patients of Eastern Nepal.

Dyslipidemia is closely associated with hypertension. Out of different fractions of lipoprotein, definite association of elevated LDL-Cholesterol (LDLc) and other lipid parameters has been well observed in hypertensive patients. The present cross sectional study was undertaken at BP Koirala Institute of Health Sciences with the aim to find out association of different lipid parameters and Body Mass Index (BMI) among newly diagnosed hypertension without any medications in Eastern Nepal. 80 hypertensive patients fulfilling JNC-7 criteria and 80 healthy controls were enrolled in this study. Lipid parameters (TC, TG, LDLc, VLDLc, HDLc) were estimated by Enzymatic Colorimetric test. Quetlet's formula was used to calculate BMI. Results were analyzed with student's 't' test and Pearson correlation analysis. Mean age of patients and controls were 36.30 +/- 7.73 yrs & 32.13 +/- 7.21 yrs respectively. There was significant increase in different lipid parameters namely TC (170.18 22.53 vs 145.23 21.13,P<0.005), TG (146.60 53.87 vs 119.77 35.61, P<0.005), LDLc (100.71 23.74 vs 79.25 20.10,P<0.05) and VLDLc (29.32 1077 vs 23.92 7.12, P<0.05) in patients as compared to the healthy controls. However there was no any significant difference in HDLc value. Pearson correlation analysis shows positive correlation of BMI with all the four lipid parameters even though it was not statistically significant. Thus this study shows direct association of BMI, dyslipidemia in hypertensive patients of the Eastern Nepal.

Congenital erythropoietic porphyria.

A case of congenital erythropoietic porphyria born out of consanguineous marriage with features of red coloured urine, photosensitivity, hypertrichosis of face and extremities, erythrodontia and haemolytic anaemia is reported.

Growth hormone levels in relation to birth weight and gestational age.

Growth hormone levels were measured in 33 umbilical cord blood samples collected from babies born at JIPMER Hospital during April and May-1998. The study was done to evaluate the growth hormone profile in relation to birth weight and gestational age. There was statistically significant difference in the cord blood growth hormone levels between babies weighing > 2500 gms (28.1 +/- 12.83 ng/dl) and low birth weight babies (76.8 +/- 55.7 ng/dl). The difference in growth hormone levels between term babies weighing > 2500 gms and preterm babies (72.5 +/- 29.4 ng/dl) was also statistically significant. However, there was no significant difference in the cord blood growth hormone levels between term low birth weight and preterm babies. Growth hormone levels were higher in preterm babies and low birth weight babies as compared to term babies weighing > 2500 gms indicating that growth hormone has an important role to play in intrauterine growth along with other growth promoting factors.