Browsing by Author "Gautam, Rupesh K."

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Chemopreventive Potential of Dietary Nanonutraceuticals for
(Daffodil International University, 2022-07-12) Chopra, Hitesh; Bibi, Shabana; Goyal, Rajat; Gautam, Rupesh K.; Trivedi, Rashmi; Upadhyay, Tarun Kumar; Mujahid, Mohd Hasan; Shah, Mohammad Ajmal; Haris, Muhammad; Khot, Kartik Bhairu; Gopan, Gopika; Singh, Inderbir; Kim, Jin Kyu; Jose, Jobin; Abdel-Daim, Mohamed M.; Alhumaydhi, Fahad A.; Emran, Talha Bin; Kim, Bonglee
There are more than two hundred fifty different types of cancers, that are diagnosed around the world. Prostate cancer is one of the suspicious type of cancer spreading very fast around the world, it is reported that in 2018, 29430 patients died of prostate cancer in the United State of America (USA), and hence it is expected that one out of nine men diagnosed with this severe disease during their lives. Medical science has identified cancer at several stages and indicated genes mutations involved in the cancer cell progressions. Genetic implications have been studied extensively in cancer cell growth. So most efficacious drug for prostate cancer is highly required just like other severe diseases for men. So nutraceutical companies are playing major role to manage cancer disease by the recommendation of best natural products around the world, most of these natural products are isolated from plant and mushrooms because they contain several chemoprotective agents, which could reduce the chances of development of cancer and protect the cells for further progression. Some nutraceutical supplements might activate the cytotoxic chemotherapeutic effects by the mechanism of cell cycle arrest, cell differentiation procedures and changes in the redox states, but in other, it also elevate the levels of effectiveness of chemotherapeutic mechanism and in results, cancer cell becomes less reactive to chemotherapy. In this review, we have highlighted the prostate cancer and importance of nutraceuticals for the control and management of prostate cancer, and the significance of nutraceuticals to cancer patients during chemotherapy.
Comparative Highlights on MERS-Cov, SARS-Cov-1, SARS-Cov-2, and Neo-Cov
(Daffodil International University, 2022-09-29) Goyal, Rajat; Gautam, Rupesh K.; Chopra, Hitesh; Dubey, Ankit Kumar; Singla, Rajeev K.; Rayan, Rehab A.; Kamal, Mohammad Amjad
The severe acute respiratory syndrome (SARS-CoV, now SARS-CoV-1), middle east respiratory syndrome (MERS-CoV), Neo-CoV, and 2019 novel coronavirus (SARS-CoV-2/COVID-19) are the most notable coronaviruses, infecting the number of people worldwide by targeting the respiratory system. All these viruses are of zoonotic origin, predominantly from bats which are one of the natural reservoir hosts for coronaviruses. Thus, the major goal of our review article is to compare and contrast the characteristics and attributes of these coronaviruses. The SARS-CoV-1, MERS-CoV, and COVID-19 have many viral similarities due to their classification, they are not genetically related. COVID-19 shares approximately 79 % of its genome with SARS-CoV-1 and about 50 % with MERS-CoV. The shared receptor protein, ACE2 exhibit the most striking genetic similarities between SARS-CoV-1 and SARS-CoV-2. SARS-CoV primarily replicates in the epithelial cells of the respiratory system, but it may also affect macrophages, monocytes, activated T cells, and dendritic cells. MERS-CoV not only infects and replicates inside the epithelial and immune cells, but it may lyse them too, which is one of the common reasons for MERS's higher mortality rate. The details of infections caused by SARS-CoV-2 and lytic replication mechanisms in host cells are currently mysterious. In this review article, we will discuss the comparative highlights of SARS-CoV-1, MERS-CoV, SARS-CoV-2, and Neo-CoV, concerning their structural features, morphological characteristics, sources of virus origin and their evolutionary transitions, infection mechanism, computational study approaches, pathogenesis and their severity towards several diseases, possible therapeutic approaches, and preventive measures.
Insights on aspects of apoptosis in neurodegenerative disorders: a comprehensive review
(2024-02-15) Goyal, Mr. Rajat; Wilson, Kashish; Saharan, Anjali; Gautam, Rupesh K.; Chopra, Hitesh; Gupta, Sumeet; Amjad Kamal, Mohammad
Nerve cell death is the central aspect of human neurodegenerative disorders. Neuronal death in results leads to the onset of various human neurological disorders such as Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, amyotrophic lateral sclerosis, and stroke. In developing neurons, apoptosis is assumed to provide a counterbalance to overexuberant cell replication. Numerous signals may induce apoptosis in neurons, such as the absence of neurotrophic factor support, increased levels of metabolic and oxidative stress, and overstimulation of glutamate receptors (leading to the calcium influx). Cell death and neurological disorders have been related to oxidative stress, which creates an imbalance between antioxidant defenses and free radical production. In this paper, a summary of the engrossment of oxidative stress, neuronal apoptosis, and mitochondrial dysfunction in neurodegenerative disorders has been discussed. Antioxidant therapy’s potential assistance for neurodegenerative illnesses in human beings is still up for dispute, despite encouraging pre-clinical research findings. One elucidation for this disparity could be the non-existence of an accurate way to assess oxidative stress in the brain. The explosion in research on apoptosis in neurodegeneration has stemmed from the conception that persuading neuronal apoptotic death may be crucial to the progression of a disease and that anti-apoptotic approaches may be useful in the prevention of neurodegenerative processes. A deeper understanding of the role that apoptosis plays in neurodegenerative processes will serve as the foundation for future research into the development of focused, effective treatment modalities.
Natural products in the management of neurodegenerative diseases
(2024-05-16) Rajat, Goyal; Mittal, Pooja; Gautam, Rupesh K.; Kamal, Mohammad Amjad; Perveen, Asma; Garg, Vandana; Alexiou, Athanasios; Saboor, Muhammad; Haque, Shafiul; Farhana, Aisha; Papadakis, Marios; Ashraf, Ghulam Md
Neurodegenerative diseases represent one of the utmost imperative well-being health issues and apprehensions due to their escalating incidence of mortality. Natural derivatives are more efficacious in various preclinical models of neurodegenerative illnesses. These natural compounds include phytoconstituents in herbs, vegetables, fruits, nuts, and marine and freshwater flora, with remarkable efficacy in mitigating neurodegeneration and enhancing cognitive abilities in preclinical models. According to the latest research, the therapeutic activity of natural substances can be increased by adding phytoconstituents in nanocarriers such as nanoparticles, nanogels, and nanostructured lipid carriers. They can enhance the stability and specificity of the bioactive compounds to a more considerable extent. Nanotechnology can also provide targeting, enhancing their specificity to the respective site of action. In light of these findings, this article discusses the biological and therapeutic potential of natural products and their bioactive derivatives to exert neuroprotective effects and some clinical studies assessing their translational potential to treat neurodegenerative disorders.
Natural Products in the Management of Neurodegenerative Diseases
(Springer Nature, 2024-05-16) Goyal, Rajat; Mittal, Pooja; Gautam, Rupesh K.; Kamal, Mohammad Amjad; Perveen, Asma; Garg, Vandana; Alexiou, Athanasios; Saboor, Muhammad; Haque, Shafiul; Farhana, Aisha; Papadakis, Marios; Ashraf, Ghulam Md
"Neurodegenerative diseases represent one of the utmost imperative well-being health issues and apprehensions due to their escalating incidence of mortality. Natural derivatives are more efficacious in various preclinical models of neurodegenerative illnesses. These natural compounds include phytoconstituents in herbs, vegetables, fruits, nuts, and marine and freshwater flora, with remarkable efficacy in mitigating neurodegeneration and enhancing cognitive abilities in preclinical models. According to the latest research, the therapeutic activity of natural substances can be increased by adding phytoconstituents in nanocarriers such as nanoparticles, nanogels, and nanostructured lipid carriers. They can enhance the stability and specificity of the bioactive compounds to a more considerable extent. Nanotechnology can also provide targeting, enhancing their specificity to the respective site of action. In light of these findings, this article discusses the biological and therapeutic potential of natural products and their bioactive derivatives to exert neuroprotective effects and some clinical studies assessing their translational potential to treat neurodegenerative disorders. Graphical Abstract Common mechanisms, therapeutic targets, and molecular pathogenesis of neurodegeneration. It is focused on the biological and therapeutic potential of natural products and their bioactive derivatives to exert a neuroprotective effect on the pathologies of neurodegenerative diseases."
.Unlocking the Immunomodulatory Potential of Rosmarinic Acid Isolated from Punica granatum L. using Bioactivity-Guided Approach: In Silico, In Vitro, and In Vivo Approaches
(Scopus, 2024-03-05) Gautam, Rupesh K.; Tripathi, Shailesh Mani; Akash, Shopnil; Sharma, Sanjay; Sharma, Komal; Goyal, Swapnil; Behzad, Sahar; Gundamaraju, Rohit; Mishra, Dinesh Kumar; Zhang, Yingbo; Shen, Bairong; Sundriyal, Sandeep; Singla, Rajeev K.
Background: Punica granatum L. is well-known for its multifaceted therapeutic potential, including anti-inflammatory and immunomodulatory activities. Aim: This study aimed to characterize an immunomodulatory compound isolated from Punica granatum L. using a bioactivity-guided approach. Methods: Chromatographic techniques were adopted for isolation and purification of secondary metabolites. In silico, in vitro, and in vivo methods were performed to characterize the therapeutic potential of the isolated compound. Results: Using preparative thin-layer chromatography, rosmarinic acid was isolated from F4 (column chromatography product obtained from a butanolic fraction of the extract). The impact of rosmarinic acid was assessed in rats using the neutrophil adhesion test, DTH response, and phagocytic index. In immunized rats, rosmarinic acid demonstrated significant immunomodulatory potential. Computational experiments, like molecular docking and molecular dynamics, were also conducted against two targeted receptors, Cereblon (PDB ID: 8AOQ) and human CD22 (PDB ID: 5VKM). Computational studies suggested that an increase in phagocytic index by rosmarinic acid could be attributed to inhibiting Cereblon and CD22. Pharmacokinetics and toxicity prediction also suggested the drug-likeness of rosmarinic acid. Conclusion: Rosmarinic acid is a potential candidate, but extensive research needs to be done to translate this molecule from bench to bedside