Browsing by Author "Chaturvedi, Pragya"

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    Advanced molecular therapies for neurological diseases: focus on stroke, alzheimer's disease, and parkinson's disease
    (Springer-Verlag Italia s.r.l., 2022-09-06T00:00:00) Katta, Madhumitha; Mathew, Blessy Aksa; Chaturvedi, Pragya; Ludhiadch, Abhilash; Munshi, Anjana
    Neurological diseases (NDs) are one of the leading causes of disability and the second leading cause of death globally. Among these stroke, Alzheimer's disease (AD), and Parkinson's disease (PD) are the most common NDs. A rise in the absolute number of individuals affected with these diseases indicates that the current treatment strategies in management and prevention of these debilitating diseases are not effective sufficiently. Therefore, novel treatment strategies are being explored to cure these diseases by addressing the causative mechanisms at the molecular level. Advanced therapies like gene therapy (gene editing and gene silencing) and stem cell therapies aim to cure diseases by gene editing, gene silencing and tissue regeneration, respectively. Gene editing results in the deletion of the aberrant gene or insertion of the corrected gene which can be executed using the CRISPR/Cas gene editing tool a promising treatment strategy being explored for many other prevalent diseases. Gene silencing using siRNA silences the gene by inhibiting protein translation, thereby silencing its expression. Stem cell therapy aims to regenerate damaged cells or tissues because of their ability to divide into any type of cell in the human body. Among these approaches, gene editing and gene silencing have currently been applied in vitro and to animal models, while stem cell therapy has reached the clinical trial stage for the treatment of NDs. The current status of these strategies suggests a promising outcome in their clinical translation. � 2022, Fondazione Societ� Italiana di Neurologia.
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    Potential environmental toxicant exposure, metabolizing gene variants and risk of PCOS-A systematic review
    (Elsevier Inc., 2021-06-11T00:00:00) Sharma, Priya; Bilkhiwal, Nisha; Chaturvedi, Pragya; Kumar, Sachin; Khetarpal, Preeti
    Exposure of environmental toxicants such as potentially toxic metals and pesticides have largely been attributed to produce adverse effects on general women's health and to be more precise on the reproductive system. In order to explore exposure of toxicants and metabolizing gene variants as risk factor for polycystic ovarian syndrome (PCOS), literature search was carried out using the databases PubMed, Central Cochrane Library, Google Scholar, Science Direct with appropriate keywords upto 6 December 2020. While most of the studies indicate higher serum Cu concentration and lower concentration of Mn as risk factor, studies also report presence of higher pesticide concentration in PCOS women. Genes such as MTHFR, CYPs participate in the metabolism of toxicants and may show different response due to underlying genetic variants. Thus, toxicant exposure are to some extent responsible for the pathogenesis of syndrome through oxidative stress and endocrine disruption, but the susceptibility may vary due to the underlying genetic polymorphism of the exposed population. � 2021 Elsevier Inc.
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    Role of Omics in Migraine Research and Management: A Narrative Review
    (Springer, 2022-07-07T00:00:00) Chaturvedi, Pragya; Khan, Rahul; Sahu, Prachi; Ludhiadch, Abhilash; Singh, Gagandeep; Munshi, Anjana
    Migraine is a neurological disorder defined by episodic attacks of chronic pain associated with nausea, photophobia, and phonophobia. It is known to be a complex disease with several environmental and genetic factors contributing to its susceptibility. Risk factors for migraine include head or neck injury (Arnold, Cephalalgia 38(1):1�211, 2018). Stress and high temperature are known to trigger migraine, while sleep disorders and anxiety are considered to be the comorbid conditions with migraine. Studies have reported various biomarkers, including genetic variants, proteins, and metabolites implicated in migraine�s pathophysiology. Using the �omics� approach, which deals with genetics, transcriptomics, proteomics, and metabolomics, more specific biomarkers for various migraine can be identified. On account of its multifactorial nature, migraine is an ideal study model focusing on integrated omics approaches, including genomics, transcriptomics, proteomics, and metabolomics. The current review has been compiled with an aim to focus on the genomic alterations especially involved in the regulation of glutamatergic neurotransmission, cortical excitability, ion channels, solute carrier proteins, or receptors; their expression in migraine patients and also specific proteins and metabolites, including some inflammatory biomarkers that might represent the migraine phenotype at the molecular level. The systems biology approach holds the promise to understand the pathophysiology of the disease at length and also to identify the specific therapeutic targets for novel interventions. � 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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    Targeting Redox Homeostasis of Tumor Cells by Therapeutic Compounds in Cancer: An Indian Perspective
    (Springer Singapore, 2022-09-28T00:00:00) Vasudeva, Kanika; Chaturvedi, Pragya; Khan, Rahul; Sahu, Prachi; Munshi, Anjana
    Cancer is one of the significant causes of morbidity and mortality in the world. The role of oxidative stress in tumor progression and metastasis has been under focus since the last two decades, suggesting the importance of redox balance upon which cancer cells thrive to promote oncogenic phenotype. Therefore, it is highly warranted to develop therapies that can disrupt the fine-tuned intracellular reactive oxygen species (ROS) balance of tumor cells. Even though classical chemotherapy, radiotherapy, and many FDA-approved chemotherapeutic drugs modulate ROS levels, the associated side effects make it worthwhile to explore alternative options. Various compounds of natural origin have high efficacy and minimum side effects and pose a low risk of recurrence. This chapter has been compiled to give a thorough account of medicinal plants of Indian origin that have been implicated in ROS modulation and their potential applications in clinical settings. � Springer Nature Singapore Pte Ltd. 2022.
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    Translation and Validation of ID.Migraine Questionnaire to North-Indian Vernacular Languages
    (Wolters Kluwer Medknow Publications, 2023-09-11T00:00:00) Sahu, Prachi; Chaturvedi, Pragya; Khan, Rahul; Singla, Monika; Munshi, Anjana; Singh, Gagandeep
    Background: ID-Migraine is an established screening tool for migraine. Translation and validation in more languages can increase its reach and scope. Aim: To translate and validate ID-Migraine for screening migraine patients in two North-Indian vernacular languages, that is, Hindi and Punjabi. Methods: ID Migraine was translated into Hindi and Punjabi. Subjects with headaches in outpatient clinics were administered the questionnaire according to their preferred language of choice and referenced clinical evaluations, performed by an experienced neurologist, based on current the ICHD-3 diagnostic criteria. Results: One hundred subjects with complaints of headaches and 60 healthy controls were recruited after informed consent. Of the 100 subjects with headaches, 73 (73%) screened positive with a translated version of ID-Migraine, and 60 (60%) were eventually diagnosed with migraine without aura. The sensitivity of the Hindi version of ID-Migraine was 94% (95% confidence intervals, 79% to 99%); specificity, 56% (95% CI, 31% to 78%); positive predictive value, 79% (95% CI, 69% to 86%) and negative predictive value, 83% (95% CI, 55% to 95%). The Punjabi version demonstrated a sensitivity of 86% (95% CI, 68% to 96%); specificity, 43% (95% CI, 23% to 66%); PPV, 68% (95% CI, 58% to 76%); and NPV, 69% (95% CI, 44% to 86%). Conclusion: The translated versions of ID-Migraine demonstrated high sensitivity and fair specificity for screening migraine in Indian subjects who speak and understand Hindi and Punjabi. � 2023 Annals of Indian Academy of Neurology.