Przeglądanie według Autor "Rajashekaraiah, Vani"

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Drug-induced thrombocytopenia – etiology and alternative therapeutic approaches
(Publishing Office of the University of Rzeszow, 2023-09) Rajashekaraiah, Vani; Berikai Ananthakrishna, Anusha
Introduction and aim. The cumulative incidence of drug-induced thrombocytopenia (DIT) is 10 cases per one million people per year with a prevalence of approximately 25% in critically ill patients. This review provides a comprehensive view of drug-induced thrombocytopenia, diagnosis, underlying mechanisms, common strategies in therapeutics, and potential alternatives. Material and methods. Databases such as “Google Scholar”, “PubMed”, “Medline” and “MDPI” was used for literature review with the keywords, “platelets”, “platelet disorders”, “thrombocytopenia”, “drug-induced”, “oxidative stress” “plant extracts”, “phytochemicals”, “antioxidants”, for the articles published between 2013-2023 and written in the English language. Analysis of the literature. Several antimicrobials, anti-cancer drugs, and antivirals are often reported to cause adverse effects during treatment, such as thrombocytopenia. A thorough understanding of the underlying pathophysiology is important for appropriate treatment. Even though an improvement in platelet count is observed after the discontinuation of the causative drug, there is a dire need for treatment in some cases due to associated complications. There are various pitfalls with conventional treatments which include clinical complications and lack of effectiveness. Conclusion. Interventions in therapeutics through antioxidants can aid in faster recovery. Various plant extracts and phytochemicals have been employed as therapeutics in platelet disorders due to their exceptional antioxidant activity. It is imperative to explore the bioactive components of natural products and their influence on platelet efficacy. Also, it highlights how antioxidants can be used as a safe, yet effective option as therapeutics for treating a complicated disorder such as DIT or be used as supplements to prevent adverse effects of existing treatments involving antibiotics and chemotherapeutics.
p-Coumaric acid as a potent additive in blood storage solution
(Publishing Office of the University of Rzeszow, 2023-06) Rajanand, Magdaline Christina; Hsieh, Carl; Pallavi, Masannagari; Nayak, Ashabaree; John, Maria Shilpa; Malik, Shivangi; Vempati, Vaishnavi; Thacker, Yasmin; Rajashekaraiah, Vani
Introduction and aim. Stored erythrocytes develop lesions involving changes in their structure and function reducing their efficacy. Oxidative Stress (OS) being one of the main causes of storage lesion, can be attenuated by antioxidants as additives in the storage solution. This study aims to evaluate the effect of p-Coumaric acid (CA) on erythrocytes during whole blood storage. Material and methods. Blood collected from Male Wistar rats was stored at 4°C in CPDA-1 solution for 21 days. Blood samples were stored with and without 1mM CA (CA 1) and 10 mM CA (CA 10). The erythrocytes were isolated every week during storage and the biomarkers for OS and antioxidant status were analysed. Results. Superoxide dismutase and catalase elevated on day 14. Conjugate dienes decreased in CA 10 on day 14. Thiobarbituric acid reactive substances increased on day 7 and decreased on day 14 in CA groups. Protein sulfhydryls decreased in controls and CA 1 on day 14 whereas, it was maintained in CA 10. Conclusion. Coumaric acid upregulated the antioxidant enzymes and protected the cells from oxidative damage. Thus, coumaric acid can be employed as a potent additive during storage and opens new avenues of employing it in similar OS situations in erythrocytes.