Knowledge, Attitude, And Practices Of General Practitioners And Homeopaths Regarding Food Allergy And Anaphylaxis In India- A Comparative Study

Food allergy (FA) is a growing health problem in India and worldwide with notable prevalence in infants when compared with children and adults. Multiple genetic and nutritional factors play an important role in etiology of FA leading to morbidity and mortality. As general practitioners (GPs) and homeopaths are the first persons to be approached by patients with possible FA, the need for evaluating their Knowledge, Attitude and Practices (KAP) towards the same are essential to be studied.A total of 214 participants- 107 GPs with or without specialization in Internal Medicine and 107 homeopaths participated in the study. A validated questionnaire was adopted to assess their KAP. The questionnaire had 31 parameters (demographic details-5, knowledge-21 and attitude and practices-5) regarding symptoms, severity, risk factors, diagnosis and treatment of FA. The score was recorded and results with p-value ≤0.05 were considered statistically significant.A significant difference in the perception of FA was observed between GPs (42.1%) and homeopaths (10.3%) regarding the safety of administering influenza vaccines in children with egg allergy (p=0.003). 80.4% of GPs and 23.3% homeopaths believed that epinephrine is the 1st line choice for treatment of anaphylaxis (p=0.035). 64.5% GPs and 28.1% homeopaths opined that timely administration of epinephrine prevents fatal anaphylaxis which was statistically significant. (p=0.046). However no statistically significant difference (p=0.112) was found between GPs (65.4%) and homeopaths (58.9%) in their opinion regarding the reliability of positive skin prick test or radioallergosorbent test (RAST) as sufficient FA diagnostic tool. The total scores obtained regarding the knowledge in FA and anaphylaxis by GPs and homeopaths was 66.4% and 46.8% respectively which was not found to be statistically significant (p=0.172).Overall knowledge of FA in GPs and homeopaths was comparable with strengths and weakness in each domain. GPs had more precise knowledge than homeopaths, regarding the treatment schedule, in case of anaphylaxis, which in turn reflects the differences in attitude and approach in treating FA among the two groups. Periodic educational programs focused at improving the knowledge regarding food allergy and treatment options is a prerequisite among GPs and homeopaths help them to understand better as well as treat the adverse effects of FA

Pre-clinical toxicity & immunobiological evaluation of DNA rabies vaccine & combination rabies vaccine in rhesus monkeys (Macaca mulatta).

Background & objectives: Pre-clinical toxicology evaluation of biotechnology products is a challenge to the toxicologist. The present investigation is an attempt to evaluate the safety profile of the first indigenously developed recombinant DNA anti-rabies vaccine [DRV (100 μg)] and combination rabies vaccine [CRV (100 μg DRV and 1.25 IU of cell culture-derived inactivated rabies virus vaccine)], which are intended for clinical use by intramuscular route in Rhesus monkeys. Methods: As per the regulatory requirements, the study was designed for acute (single dose - 14 days), sub-chronic (repeat dose - 28 days) and chronic (intended clinical dose - 120 days) toxicity tests using three dose levels, viz. therapeutic, average (2x therapeutic dose) and highest dose (10 x therapeutic dose) exposure in monkeys. The selection of the model i.e. monkey was based on affinity and rapid higher antibody response during the efficacy studies. An attempt was made to evaluate all parameters which included physical, physiological, clinical, haematological and histopathological profiles of all target organs, as well as Tiers I, II, III immunotoxicity parameters. Results: In acute toxicity there was no mortality in spite of exposing the monkeys to 10XDRV. In sub chronic and chronic toxicity studies there were no abnormalities in physical, physiological, neurological, clinical parameters, after administration of test compound in intended and 10 times of clinical dosage schedule of DRV and CRV under the experimental conditions. Clinical chemistry, haematology, organ weights and histopathology studies were essentially unremarkable except the presence of residual DNA in femtogram level at site of injection in animal which received 10X DRV in chronic toxicity study. No Observational Adverse Effects Level (NOAEL) of DRV is 1000 ug/dose (10 times of therapeutic dose) if administered on 0, 4, 7, 14, 28th day. Interpretation & conclusions: The information generated by this study not only draws attention to the need for national and international regulatory agencies in formulating guidelines for pre-clinical safety evaluation of biotech products but also facilitates the development of biopharmaceuticals as safe potential therapeutic agents.

Effect of maternal undernutrition on human foetal pancreas morphology in second trimester of pregnancy.

Background & objectives: Maternal undernutrition and hyperglycaemia during pregnancy, as well as foetal undernutrition affecting the development of foetal endocrine pancreas structure and function, especially that of β-cells is well known. This study was undertaken to look into the changes in pancreatic islets morphology of aborted normal human foetuses (16-20 wk old) of undernourished and adequately nourished mothers. Methods: Foetuses were collected over a 24 month period from medically terminated pregnancies of six undernourished mothers (BMI <18.5 kg/m2) and eight adequately nourished mothers (BMI >18.5 kg/m2). The sections were stained with haematoxylin & eosin as well as Masson trichrome for morphometric estimates such as islet count, area, volume, etc. and immunohistochemistry analysis of β-cells for insulin presence was done. Results: Significant correlations between maternal and foetal parameters were seen. However, there were no statistically significant differences in the number, size or density and beta cell counts of the pancreas among foetal pancreas of mothers with BMI <18.5 and >18.5 kg/m2. Interpretation & conclusions: Our findings indicate that nutritional status of the mother may not have profound influence on the morphology of beta cells of foetal pancreas in second trimester of pregnancy. Further studies need to be done to confirm these findings.

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.

Meshed split skin graft for extensive vitiligo.

A 30 year old female presented with generalized stable vitiligo involving large areas of the body. Since large areas were to be treated it was decided to do meshed split skin graft. A phototoxic blister over recipient site was induced by applying 8 MOP solution followed by exposure to UVA. The split skin graft was harvested from donor area by Padgett dermatome which was meshed by an ampligreffe to increase the size of the graft by 4 times. Significant pigmentation of the depigmented skin was seen after 5 months. This procedure helps to cover large recipient areas, when pigmented donor skin is limited with minimal risk of scarring. Phototoxic blister enables easy separation of epidermis thus saving time required for dermabrasion from recipient site.