Evaluation of Serum Zinc and Antioxidant Vitamins in Adolescent Homozygous Sickle Cell Patients in Wardha, District of Central India.

Introduction: Sickle cell anaemia is a condition characterized by haemolytic and vaso-occlusive crisis. Previous studies in different part of the world have reported deficiency of zinc, vitamin C and E but the role of their supplementation in sickle cell disease remains question. Nutritional factors may contribute to clinical manifestation in rural population of developing countries specially in adolescent age group.

Apical extrusion of debris and irrigant using hand and rotary systems: A comparative study.

Aim: To evaluate and compare the amount of debris and irrigant extruded quantitatively by using two hand and rotary nickel-titanium (Ni-Ti) instrumentation techniques.

Materials And Methods: Eighty freshly extracted mandibular premolars having similar canal length and curvature were selected and mounted in a debris collection apparatus. After each instrument change, 1 ml of distilled water was used as an irrigant and the amount of irrigant extruded was measured using the Meyers and Montgomery method.

A simple, cost-effective quality assurance model for measurement of lipids in a large epidemiological study.

Background: Laboratory measurements are an integral part of epidemiological studies in cardiovascular disease. Standardization and quality assurance is of utmost importance in the context of multicentre studies.

Methods: We evaluated a simple and cost-effective method of quality assurance for measurement of total cholesterol, high density lipoprotein (HDL) cholesterol and triglycerides in a study involving 10 centres.