Fried dietary oils often cause adverse health effects due to altered chemical and nutritional properties. In the present study with mustard oil, the effect of repeated frying (180°C for 10 min, three times) on chemical characteristics and oral intake of raw and fried mustard oil (5 g/kg for 5 weeks) in Wistar rats were investigated. Repeated frying caused oxidation reactions and free fatty acid content in mustard oil. This fried oil feeding to rats increased serum LDL cholesterol and triglycerides and decreased HDL leading to nonalcoholic fatty liver disease accounted by significant increment of liver enzymes (ALT, AST, ALP) compared with raw oil‐fed group. Higher level of serum CK‐MB and creatinine in fried oil‐fed rats indicate disrupted kidney function. Histological findings of the respective organs ascertained metabolic abnormalities due to fried oil intake. Thus, the study suggests avoidance of using repeatedly fried oils in food products for better consumer health.
Practical applications
Vegetable oil is a common ingredient of food products. Mustard oil is used in many countries both as raw and fried forms for various food preparations. When it is being fried at elevated temperatures in the presence of air, both thermal and oxidative decomposition take place which alter the nutritional and functional bioactive properties of the oil. The findings of the current study revealed the repeatedly fried mustard oil‐induced detrimental effects on various organs of Wistar rats. Human beings consuming repeatedly fried mustard oil regularly might also face these acute problems. Thus in context to the public health issue, it is a message to avoid in taking repeated fried oils at household cooking or food industry to maintain better health.
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Echigoshirayukidake is an edible mushroom found in Uonuma, Japan in 1994. It was assigned to a new species of
Basidiomycetes
(BDM-X) but is uniquely defect of forming bashidium. The high antioxidant activity and β-glucan content of BDM-X suggest possible functions preventing type 2 diabetes. In the present study, anti-obesity and insulin resistance preventive functions of BDM-X were examined using genetically defined obese model rat, OLETF (Otsuka Long Evans Tokushima Fatty) by feeding regular diet with and without supplementation of 5% dried BDM-X powder (BDMP) for 15 weeks. BDMP supplementation to the diet significantly (p < 0.01) suppressed the body weight gain and also visceral fat accumulation during the feeding period compared to control diet. Simultaneously, the insulin resistance and the plasma levels of adiponectin and triglycerides were significantly (p = 0.003) ameliorated in the BDMP supplemented diet group. A statistical multivariate analysis showed the weight of three types of adipose tissue (epididymal, retroperirenal, and mesenteric fat) positively correlated with HOMA-IR (Homeostasis Model Assessment of Insulin Resistance), and negatively correlated with plasma adiponectin. These results indicate BDM-X is a new resource applicable to the functional foods or the complementary biomedicines to prevent metabolic syndromes leading to type 2 diabetes.
To explore a suitable biochemical marker to predict the future development of preeclampsia (PE), total 119 pregnant women at their 10-14 weeks of pregnancy were selected. Urinary albumin was measured in these subjects and they were followed up to the term for the possible development of PE. The data were analyzed by grouping the subjects into the PE group and control group. Out of 119 subjects 56 were primigravida and 63 were multigravida. From the total subjects 10 developed PE (04 primigravida and 06 multigravida), which shows a prevalence of about 8.4%. The PE group showed a relatively higher value of Albumin Creatinine Ratio (ACR) as compared to control. 63 subjects had microalbuminuria out of which 8 developed PE. The sensitivity of ACR in predicting the development of PE was 80%, specificity 49.54%, Positive pridictive value (PPV) 12.69% and Negitive pridictive value (NPV) 96.42%. It may be concluded that early pregnancy levels of microalbuminuria can be used as predictors of preeclampsia with high negative predictive value.
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