Department Of Human Genetics And Molecular Medicine

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Author: search.filters.author.Kaur, Harpreet

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    Targeting mitochondria in the regulation of neurodegenerative diseases: A comprehensive review
    (John Wiley and Sons Inc, 2022-07-20T00:00:00) Maurya, Shashank Kumar; Gupta, Suchi; Bakshi, Amrita; Kaur, Harpreet; Jain, Arushi; Senapati, Sabyasachi; Baghel, Meghraj Singh
    Mitochondria are one of the essential cellular organelles. Apart from being considered as the powerhouse of the cell, mitochondria have been widely known to regulate redox reaction, inflammation, cell survival, cell death, metabolism, etc., and are implicated in the progression of numerous disease conditions including neurodegenerative diseases. Since brain is an energy-demanding organ, mitochondria and their functions are important for maintaining normal brain homeostasis. Alterations in mitochondrial gene expression, mutations, and epigenetic modification contribute to inflammation and neurodegeneration. Dysregulation of reactive oxygen species production by mitochondria and aggregation of proteins in neurons leads to alteration in mitochondria functions which further causes neuronal death and progression of neurodegeneration. Pharmacological studies have prioritized mitochondria as a possible drug target in the regulation of neurodegenerative diseases. Therefore, the present review article has been intended to provide a comprehensive understanding of mitochondrial role in the development and progression of neurodegenerative diseases mainly Alzheimer's, Parkinson's, multiple sclerosis, and amyotrophic lateral sclerosis followed by possible intervention and future treatment strategies to combat mitochondrial-mediated neurodegeneration. � 2022 Wiley Periodicals LLC.
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    Assessment of soybean inhibitor as a biopesticide against melon fruit fly, Bactrocera cucurbitae (Coquillett)
    (Springer Berlin Heidelberg, 2017) Kaur, Harpreet; Kaur, Amandeep; Kaur, Amrit Pal; Rup, Pushpinder J.; Sohal, Satwinder K.
    In the current study, the soybean trypsin?chymotrypsin inhibitor (Bowman?Birk Inhibitor, SBBI) was tested against Bactrocera cucurbitae (Coquillett), a major pest of cucurbit crops. Bioassays conducted using different concentrations (12.5, 25, 50, 100 and 200?ppm) revealed a detrimental effect of the inhibitor on the growth and development of the second instar larvae of the melon fruit fly. SBBI prolonged the larval and total development period and reduced the percentage pupation and emergence. Enzymatic assays of proteases conducted at three time intervals using the LC40 (59?ppm) concentration of SBBI showed an inhibitory effect on trypsin activity, whereas an increase was observed in the activity of chymotrypsin, elastase and leucine aminopeptidase. Among the enzymes involved in detoxification, antioxidant and general metabolism, an increase was observed in the activity of catalases, and acid and alkaline phosphatases at most treatment intervals. The activity of esterases was induced only with prolonged treatment whereas that of glutathione S-transferases was suppressed in larvae treated with SBBI. The findings revealed the potential of SBBI to disrupt the growth of the melon fruit fly. ? 2017, Deutsche Phythomedizinische Gesellschaft.