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Articles by Anoop Kumar
Total Records ( 2 ) for Anoop Kumar
  Omesh Bajpai , Anoop Kumar , Ashish K. Mishra , Nayan Sahu , Soumit K. Behera and Lal Babu Chaudhary
  The phenological studies of two tree species Shorea robusta Gaertn. f. and Ficus hispida L.f. occurring in Katerniaghat Wildlife Sanctuary (KWS), a tropical moist deciduous forest in Northern India along Indo-Nepal border has been carried out to gather information about the different phenophases of the plants. Both the candidate species are the co-dominant constituents of the sanctuary area. For each species ten trees were selected and a total of 160 twigs were tagged to collect phenological data. The initiation and completion of different phenophases such as leaf bud initiation, leaf emergence, young leaf formation, leaf fall, flower bud development, formation of flowers and fruits were recorded at monthly basis. In addition, the number of leaf buds, young leaves, matured leaves and total leaves has also been recorded. The individual leaf area was measured by using graph paper once they became stable in their growth and ultimately average leaf area was obtained. In both the species leaf bud busting and flowering/figing initiate in post winter (March to April) and maximum leaf fall was recorded in the post monsoon season (November to February). In Shorea robusta the young fruits start to appear in dry season (May) and get matured before the arrival of the monsoon (June) so that the seeds get proper moist condition to germinate.
  Deepak Divakar , Dinakar Sasmal , Anoop Kumar , Abhishek Kumar and Neelima Sharma
  Background: Over the years, pyrethroids, including allethrin, are widely used for domestic and agricultural purposes and are found to be neurotoxic. However, effects on hematological and biochemical parametersare not elucidated. Thus, the first objective of the present study was to investigate the effect of allethrin on the hematological and biochemical parameters of Swiss albino mice. Further, for the amelioration of its effect, two different bioactive herbal extracts piperine (alkaloid) and curcumin (polyphenols) were evaluated. Methods: Animals were divided into six groups; the first group was used as a control. Groups 2, 3, 4, 5 and 6 were orally treated with allethrin (15 mg kg-1 b.wt.), allethrin+curcumin (100 mg kg-1 b.wt.), allethrin+piperine (100 mg kg-1 b.wt.), piperine (100 mg kg-1 b.wt.) and curcumin (100 mg kg-1 b.wt.), respectively for 28 days. Results: Administration of allethrin brought about a significant decrease in leukocytes, polymorphs, serum albumin, HDL, glucose and CPK and whereas, lymphocytes, haemoglobin, ALT, AST, serum creatinine, blood urea, total cholesterol, LDL, VLDL, triglycerides was found to be significantly increased following allethrin treatment. Gravimetric indices (body weight and organ weight) slightly declined following allethrin treatment. Further, the histopathological observations in allethrin treated mice showed the damage in all vital organs (kidney, liver, lungs, brain and heart) of Swiss albino mice. Administration of piperine and curcumin exhibited signi cant reversal of allethrin altered hematological and biochemical parameters. ALT, AST, serum creatinine, blood urea, serum albumin, HDL, glucose found to be comparable to that of the control group after piperine and curcumin administration. The presence of piperine and curcumin with allethrin preserved the normal histological architecture of the liver, kidney, lungs, brain and heart. Conclusion: These results indicate that piperine and curcumin can be a potent protective agent against allethrinalteredbiochemical and hematological alterations in mice.
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