Antioxidant levels at diagnosis in childhood acute lymphoblastic leukemia.

OBJECTIVE: To measure serum zinc, selenium, retinol and tocoferol levels at diagnosis of pediatric acute lymphoblastic leukemia (ALL) and to compare it to that of a control population. Correlation was made with episodes of febrile neutropenia during the first 8 wk of therapy. METHODS: Fasting levels of serum zinc, selenium, retinol and tocoferol were measured in 45 children diagnosed with acute lymphoblastic leukemia and in 20 healthy controls. RESULTS: Lower levels of baseline selenium and tocoferol were noted in patients who developed febrile neutropenia compared to the patients who did not (p = 0.022 and 0.026 respectively). Serum retinol was also lower in patients who developed sepsis when compared to those who did not. CONCLUSIONS: Supplementation of antioxidants may be considered in clinical trials aiming at reducing infection related morbidity and mortality.

Aflatoxin contamination in stored rice variety PAU 201 collected from Punjab, India.

BACKGROUND & OBJECTIVES: The present study was carried out on stored rice variety PAU 201 in Punjab that was not permitted for milling and public distribution due to the presence of damaged grains at levels exceeding the regulatory limits of 4.75 per cent. The aim of the study was to determine fungal and aflatoxin contamination in the rice samples to assess hazard from the presence of damaged grains. Presence of iron in discoloured rice grains was also assessed. METHODS: Stored samples of paddy of PAU 201 rice variety were collected from six districts of Punjab, milled and analysed for presence of fungal and aflatoxin contamination. Scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis and Prussian blue staining was used to determine fungal spores and presence of iron, respectively. RESULTS: Aflatoxin analysis of rice samples indicated that none exceeded the Food Safety and Standards (Contaminants, Toxins and Residues) Regulations, 2011 tolerance limit of 30 µg/kg and majority of the samples had levels <15 µg/kg. The proportion of damaged grains exceeding the limit of 5 per cent was observed in 85.7 per cent of the samples. SEM and Prussian blue staining and EDX analysis of black tipped and pin point damaged rice grains did not show presence of fungal structures and presence of iron. INTERPRETATION & CONCLUSIONS: The results of the study indicated that the stored rice samples did not pose any health concern with respect to aflatoxin contamination as per the criteria laid down by the Food Safety and Standards Authority of India.

Zinc deficiency amongst adolescents in Delhi.

A cross sectional study was conducted in 260 adolescent schoolchildren (114 males) in the age group of 11-18 years to estimate the prevalence of zinc deficiency in the National Capital Territory of Delhi. Serum zinc was estimated using Inductively coupled plasma mass spectrometer. Overall, 49.4% children (50.8% males, 48.2% females) were found to have a deficient zinc nutriture.