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Articles by V. Mudgal
Total Records ( 3 ) for V. Mudgal
  V. Mudgal , N. Madaan , A. Mudgal and S. Mishra
  Polyphenols are substances of plant origin that occur in numerous fruits and vegetables, wine, tea, olive oil, chocolate and other cocoa products. They show antioxidant properties in vitro and many of their biological actions have been attributed to their intrinsic reducing capabilities. Research on the effects of dietary polyphenols on human health has developed considerably in the past 10 years. It strongly supports a role for polyphenols in the prevention of degenerative diseases, particularly cardiovascular diseases, osteoporosis, neurodegenerative, diabetes mellitus and cancers. The antioxidant properties of polyphenols have been widely studied, but it has become clear that the mechanisms of action of polyphenols go beyond the modulation of oxidative stress. Polyphenols are currently sold as nutritional supplements. Yet the scientific basis for the health claims for polyphenols is mostly weak. Results from in vitro studies are often directly translated into possible beneficial health effects in humans. However, in the body, polyphenols are quickly and easily converted into polyphenol metabolites. Presented review on Polyphenols and Health, offers an overview of the experimental, clinical and epidemiologic evidence of the effects of polyphenols on health.
  V. Mudgal , N. Madaan and A. Mudgal
  Among abiotic stresses, high salinity stress is the most severe environmental stress, which impairs crop production on at least 20% of irrigated land worldwide. Understanding the mechanism of stress tolerance along with genes involved in stress signaling network is important for crop improvement. The growth reduction is recorded as a main morphological effect of salinity. This is due to many biochemical mechanisms of the plant. It is thought that excess of salts retards the absorption of water and reduce the growth through osmotic effect. Detrimental effects of salts on growth may be due to the toxicity of specific ions, elevation of osmotic pressure or the increase in alkalinity which may restrict the availability of water or influence cellular physiology and metabolic path ways. Salinity stress response is multigenic, as a number of processes involved in the tolerance mechanism. It affected various compatible solutes/osmolytes, polyamines, reactive oxygen species, antioxidant defense mechanism, ion transport and compartmentalization of injurious ions. Various strategies to improve salinity stress tolerance have been discussed in the present review.
  N. Madaan and V. Mudgal
  Selenium (Se) is a metalloid and now becomes dietary important for human. The genotoxic potentiality and genetics of tolerance for this heavy metal is more or less lacking. The present communication deals with the cytological response of wheat (Tritium aestivum) and safflower (Carthamus tinctorius) to Se treatment. The 10-3 M concentration of SeO2 and 10-4 M concentration of SeO2 was used as a source of Se for treating wheat and safflower respectively. Control experiments were also conducted using Hoagland’s solution and normal mitotic pattern was observed. Tritium aestivum had 2n = 42 and C. tinctorius had 2n = 24. The accessions exhibited differential cytological response to Se. Although, this heavy metal was mito-toxic to both wheat and safflower but genotoxicity was more pronounced in the accessions of wheat. In response to the Se treatment, both wheat and safflower were displaying more or less similar types of mitotic anomalies. Presented data will help to understand tolerance and effects of Se in plants.
 
 
 
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