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Quaranto D, Kopec K, DeSouza N, Jarboe T, Camazza M, Gagliardi T, Conti J, Geliebter J, Tiwari R, Hurwitz MD. Hyperthermic Enhancement of Immunotherapy: Findings of In Vitro Modeling. Int J Radiat Oncol Biol Phys 2023; 117:e255-e256. [PMID: 37784985 DOI: 10.1016/j.ijrobp.2023.06.1203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Despite advancement in understanding and manipulation of immune checkpoint molecules in immunotherapeutic design, limitations in treatment efficacy persist. Strategies to enhance effectiveness include use of multiple immunotherapeutic agents or combination with radiation therapy. Prior studies have also shown potential for hyperthermia to augment response to both of these therapeutic modalities. We hypothesized that in vitro assessment of moderate hyperthermia effects on the anti-tumor immune response will aid in development of targeted strategies that best combine hyperthermia with other immune manipulating therapies. MATERIALS/METHODS To understand the consequences of temperature on carcinogenic phenotypes in vitro, B16-F10 melanoma cells were grown at 37°C or 41°C and biochemical profiles including protein expression were evaluated. Impact of hyperthermia on cell migration and proliferation were also assessed as were changes in the immune milieu including cytokine expression in response to heat. Data obtained was used to define ongoing in vivo experiments in which B16-F10 cells are implanted into C57BL/6 mice, grown to palpable tumors than treated with infrared radiation in combination with either anti-PDL1, anti-PD-1, or IL-15. Future studies based on these initial in vivo studies will explore integration of radiotherapy with hyperthermia and immunotherapy. RESULTS B16-F10 cells grown at 41°C decreased cell migration by 70% in 24 hours, and decreased proliferation by 62% at 48 hours and 94% at 72 hours. To assess biochemical orchestrations exemplified by these data, protein expression profiles were evaluated. Expression of pERK and ERK decreased by 86% and 50% and caspase-3 increased by 31% at 41°C. Activation of sphingomyelinase and caspase-3 both rely on caspase-8. Sphingomyelinase activation results in CD95 receptor translocation, leading to cell death initiation in melanoma cells. Cell stress can induce death pathways and the heat shock protein response simultaneously. Of note, Hsp70 has an established role in fostering a tumor specific immune response. Thus, we investigated inducible hsp70 expression. Hsp70 expression increased by 188% at 41°C vs. 37°C. To evaluate the immune milieu, cytokine array data from conditioned media showed that at 41°C, TNFa expression was increased and IL-4 expression was decreased, suggesting a proinflammatory shift in cytokine profiles at hyperthermic temperatures. In support of our data, hyperthermia-induced TNFa apoptotic responses have been reported. In direct relation to clinical practice, we observed that hyperthermic potentiation decreased PDL1 expression in B16-F10 by 35%. CONCLUSION Our work to date supports the hypothesis that hyperthermia can enhance immunotherapy via several mechanisms. In vivo study of the ability of hyperthermia to augment immune modulating therapies such as checkpoint blockade and radiation therapy is warranted.
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Affiliation(s)
| | - K Kopec
- New York Medical College, Valhalla, NY
| | - N DeSouza
- New York Medical College, Valhalla, NY
| | - T Jarboe
- New York Medical College, Valhalla, NY
| | - M Camazza
- New York Medical College, Valhalla, NY
| | | | - J Conti
- New York Medical College, Valhalla, NY
| | | | - R Tiwari
- New York Medical College, Valhalla, NY
| | - M D Hurwitz
- New York Medical College, Valhalla, NY; Westchester Medical Center, Valhalla, NY
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Gurushankar K, Jeyaseelan SC, Grishina M, Siswanto I, Tiwari R, Puspaningsih NNT. Density Functional Theory, Molecular Dynamics and AlteQ Studies Approaches of Baimantuoluoamide A and Baimantuoluoamide B to Identify Potential Inhibitors of M pro Proteins: a Novel Target for the Treatment of SARS COVID-19. JETP Lett 2023; 117:1-10. [PMID: 37360903 PMCID: PMC10184967 DOI: 10.1134/s0021364023600039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 06/28/2023]
Abstract
COVID-19 has resulted in epidemi conditions over the world. Despite efforts by scientists from all over the world to develop an effective va ine against this virus, there is presently no recognized cure for COVID-19. The most succeed treatments for various ailments come from natural components found in medicinal plants, which are also rucial for the development of new medications. This study intends to understand the role of the baimantuoluoamide A and baimantuoluoamide B molecules in the treatment of Covid19. Initially, density functional theory (DFT) used to explore their electronic potentials along with the Becke3-Lee-Yang-Parr (B3LYP) 6-311 + G(d, p) basis set. A number of characteristics, including the energy gap, hardness, local softness, electronegativity, and electrophilicity, have also been calculated to discuss the reactivity of mole ules. Using natural bond orbital, the title compound's bioactive nature and stability were investigated. Further, both compounds potential inhibitors with main protease (Mpro) proteins, molecular dynamics simulations and AlteQ investigations also studied. Supplementary Information The online version contains supplementary material available at 10.1134/S0021364023600039.
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Affiliation(s)
- K. Gurushankar
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, 454080 Chelyabinsk, Russia
- Department of Physics, Kalasalingam Academy of Research and Education, 626126 Krishnankoil, Tamilnadu India
| | - S. Ch. Jeyaseelan
- Post Graduate & Research Department of Physics, N.M.S.S.V.N. College, 625019 Madurai, Tamilnadu India
- Post Graduate Department of Physics, Mannar Thirumalai Naciker College, 625004 Madurai, Tamilnadu India
| | - M. Grishina
- Laboratory of Computational Modeling of Drugs, Higher Medical and Biological School, South Ural State University, 454080 Chelyabinsk, Russia
| | - I. Siswanto
- Bioinformati Laboratory, UCoE Research Center for Bio-Molecule Engineering Universitas Airlangga, 60115 Surabaya, Indonesia
| | - R. Tiwari
- Department of Physics, Coordinator Research and Development Cell, Dr CV Raman University, 495113 Kargi Kota, Bilaspur CG India
| | - N. N. T. Puspaningsih
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, 60115 Surabaya, Indonesia
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Tiwari R, Grobbelaar HW, Vermaak C, Chikte U. Strengthening the biokinetics workforce for improved services: A human resources for health review from 2000 to 2020. S Afr J Sports Med 2023; 35:v35i1a14184. [PMID: 38249776 PMCID: PMC10798608 DOI: 10.17159/2078-516x/2023/v35i1a14184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
Background Biokinetics is a South African (SA) health profession within the private health care sector. Biokineticists register with the Health Professions Council of SA (HPCSA). Objectives To describe the demographic trends of HPCSA registered biokineticists from 2000 to 2020 to understand the supply and status of human resources for health within the profession. Methods The following data were collected and analysed: i) health personnel category, ii) geographical location, iii) age, iv) sex, and v) population category. Results The number of HPCSA registered biokineticists grew from 136 in 2000, to 1831 in January 2020 (67.8% women, 32.2% men). There was a sharp decline in numbers after the age of 45 years. The Western Cape (5.8) and Gauteng (5.1) provinces had the most biokineticists per 100 000 of the population, whilst smaller provinces like Kwazulu-Natal (1.6), Mpumalanga (1.6), North-West (1.6) and Limpopo (0.9) lagged. The demographic profile of registered Biokineticists changed steadily from 2000 to 2020. Registered biokineticists classified as White decreased from 91.6% to 80.4%, whilst substantial increases were observed among Black (5.0% to 8.3%), Coloured (0.02% to 5.3%) and Indian/Asian (0.02% to 6.0%) biokineticists. Thirteen tertiary institutions offered Biokinetics programmes in 2022. Seven offered the 3+1-year (Honours) programme and six have migrated to a 4-year professional degree. Conclusion The profession is well established, growing, and dominated by women. The demographic profile has transformed steadily; however, the need to transform the profession remains strong. Strengthening investments aimed at the employment of biokineticists in the public health sector may serve as a key turning point for healthcare workforce planning.
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Affiliation(s)
- R Tiwari
- Division of Health Systems and Public Health, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg,
South Africa
| | - HW Grobbelaar
- Division of Sport Science, Department of Exercise, Sport and Lifestyle Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch,
South Africa
| | - C Vermaak
- Division of Movement Science and Exercise Therapy, Department of Exercise, Sport and Lifestyle Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch,
South Africa
| | - U Chikte
- Division of Health Systems and Public Health, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg,
South Africa
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Querfurth H, Marshall J, Parang K, Rioult-Pedotti MS, Tiwari R, Kwon B, Reisinger S, Lee HK. A PDK-1 allosteric agonist neutralizes insulin signaling derangements and beta-amyloid toxicity in neuronal cells and in vitro. PLoS One 2022; 17:e0261696. [PMID: 35061720 PMCID: PMC8782417 DOI: 10.1371/journal.pone.0261696] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 12/08/2021] [Indexed: 01/09/2023] Open
Abstract
The Alzheimer’s brain is affected by multiple pathophysiological processes, which include a unique, organ-specific form of insulin resistance that begins early in its course. An additional complexity arises from the four-fold risk of Alzheimer’s Disease (AD) in type 2 diabetics, however there is no definitive proof of causation. Several strategies to improve brain insulin signaling have been proposed and some have been clinically tested. We report findings on a small allosteric molecule that reverses several indices of insulin insensitivity in both cell culture and in vitro models of AD that emphasize the intracellular accumulation of β-amyloid (Aβi). PS48, a chlorophenyl pentenoic acid, is an allosteric activator of PDK-1, which is an Akt-kinase in the insulin/PI3K pathway. PS48 was active at 10 nM to 1 μM in restoring normal insulin-dependent Akt activation and in mitigating Aβi peptide toxicity. Synaptic plasticity (LTP) in prefrontal cortical slices from normal rat exposed to Aβ oligomers also benefited from PS48. During these experiments, neither overstimulation of PI3K/Akt signaling nor toxic effects on cells was observed. Another neurotoxicity model producing insulin insensitivity, utilizing palmitic acid, also responded to PS48 treatment, thus validating the target and indicating that its therapeutic potential may extend outside of β-amyloid reliance. The described in vitro and cell based-in vitro coupled enzymatic assay systems proved suitable platforms to screen a preliminary library of new analogs.
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Affiliation(s)
- Henry Querfurth
- Department of Neurology, Tufts Medical Center, Boston, MA, United States of America
- * E-mail:
| | - John Marshall
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, RI, United States of America
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Chapman University, School of Pharmacology, Irvine, CA United States of America
| | - Mengia S. Rioult-Pedotti
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, RI, United States of America
- Department of Neurology, Clinical Neurorehabilitation, University of Zurich, Zurich, Switzerland
| | - Rakesh Tiwari
- Center for Targeted Drug Delivery, Chapman University, School of Pharmacology, Irvine, CA United States of America
| | - Bumsup Kwon
- Department of Neurology, Rhode Island Hospital, Providence, RI, United States of America
| | | | - Han-Kyu Lee
- Department of Neurology, Tufts Medical Center, Boston, MA, United States of America
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Mendonca S, Rao A, Dogra M, Sood V, Prakash S, Batta G, Dua A, Joshi A, Sharma UK, Tiwari R. Plasma cell rich acute rejection: Risk factors, treatment and outcomes. Saudi J Kidney Dis Transpl 2022; 32:387-397. [PMID: 35017333 DOI: 10.4103/1319-2442.335451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Plasma cell-rich rejection is a rare and poorly defined entity. Its treatment is not clearly defined and has universally poor prognosis. More data should be published from various transplant centers around the world to identify the treatment that has the best outcomes and to formulate treatment guidelines for these cases. It is a retrospective analysis of kidney biopsies form 2008 to 2018. Four hundred biopsied were screened and 55 were found to have features of rejection and among them, 13 had plasma cell-rich rejection. Data of treatment given and the graft survival outcomes in these cases were retrieved by medical records. One patient had complete recovery, three had graft loss and the remaining nine had permanent decline in glomerular filtration rate. Decrease in immunosuppression and presence of infection are risk factors for plasma cell-rich acute rejection (PCAR). It can be acute cell-mediated rejection (ACR)/antibody-mediated rejection (AMR)/ACR+AMR. Resistant rejection, ACR+AMR, C4d positivity, and severe interstitial inflammation are poor prognostic factors. Overzealous decrease in immunosuppression should not be done. Management of immunosuppression during infection is most critical for the development of PCAR. Bortezomib is emerging as a therapeutic modality for the treatment of PCAR.
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Affiliation(s)
- Satish Mendonca
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - Ananth Rao
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - Manu Dogra
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - Vivek Sood
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - S Prakash
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - G Batta
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - A Dua
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - A Joshi
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - U K Sharma
- Department of Nephrology, Army Hospital (Research and Referral), New Delhi, India
| | - R Tiwari
- Department of Pathology, Army Hospital (Research and Referral), New Delhi, India
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Mozaffari S, Salehi D, Mahdipoor P, Beuttler R, Tiwari R, Aliabadi HM, Parang K. Design and application of hybrid cyclic-linear peptide-doxorubicin conjugates as a strategy to overcome doxorubicin resistance and toxicity. Eur J Med Chem 2021; 226:113836. [PMID: 34537446 DOI: 10.1016/j.ejmech.2021.113836] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/19/2021] [Accepted: 09/05/2021] [Indexed: 12/15/2022]
Abstract
Doxorubicin (Dox) is used for breast cancer, leukemia, and lymphoma treatment as an effective chemotherapeutic agent. However, Dox use is restricted due to inherent and acquired resistance and an 8-fold increase in the risk of potentially fatal cardiotoxicity. Hybrid cyclic-linear peptide [R5K]W7A and linear peptide R5KW7A were conjugated with Dox through a glutarate linker to afford [R5K]W7A-Dox and R5KW7A-Dox conjugates to generate Dox derivatives. Alternatively, [R5K]W7C was conjugated with Dox via a disulfide linker to generate [R5K]W7C-S-S-Dox conjugate, where S-S is a disulfide bond. Comparative antiproliferative assays between conjugates [R5K]W7A-Dox, [R5K]W7C-S-S-Dox, linear R5KW7A-Dox, the corresponding physical mixtures of the peptides, and Dox were performed in normal and cancer cells. [R5K]W7A-Dox conjugate was 2-fold more efficient than R5KW7A-Dox, and [R5K]W7C-S-S-Dox conjugates in inhibiting the cell proliferation of human leukemia cells (CCRF-CEM). Therefore, hybrid cyclic-linear [R5K]W7A-Dox conjugate was selected for further studies and inhibited the cell viability of CCRF-CEM (84%), ovarian adenocarcinoma (SK-OV-3, 39%), and gastric carcinoma (AGS, 73%) at a concentration of 5 μM after 72 h of incubation, which was comparable to Dox (5 μM) efficacy (CCRF-CEM (85%), SK-OV-3 (33%), and AGS (87%)). While [R5K]W7A-Dox had a significant effect on the viability of cancer cells, it exhibited minimal cytotoxicity to normal kidney (LLC-PK1, 5-7%) and heart cells (H9C2, <9%) at concentrations of 5-10 μM (compared to free Dox at 5 μM that reduced the viability of kidney and heart cells by 85% and 44%, respectively). The fluorescence microscopy images were consistent with the cytotoxicity studies, indicating minimal uptake of the cyclic-linear [R5K]W7A-Dox (5 μM) in H9C2 cells. In comparison, Dox (5 μM) showed significant uptake, reduced cell viability, and changed the morphology of the cells after 24 h. [R5K]W7A-Dox showed 16-fold and 9.5-fold higher activity against Dox-resistant cells MDA231R and MES-SA/MX2 (lethal dose for 50% cell death or LC50 of 2.3 and 4.3 μM, respectively) compared to free Dox (LC50 of 36-41 μM, respectively). These data, along with the results obtained from the cell viability tests, indicate comparable efficiency of [R5K]W7A-Dox to free Dox in leukemia, ovarian, and gastric cancer cells, significantly reduced toxicity in normal kidney LLC-PK1 and heart H9C2 cells, and significantly higher efficiency in Dox-resistant cells. A number of endocytosis inhibitors did not affect the cellular uptake of [R5K]W7A-Dox.
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Affiliation(s)
- Saghar Mozaffari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA
| | - David Salehi
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA
| | - Parvin Mahdipoor
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA
| | - Richard Beuttler
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA
| | - Rakesh Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA.
| | - Hamidreza Montazeri Aliabadi
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA.
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, 92618, USA.
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Rabaan AA, Mutair AA, Alawi ZA, Alhumaid S, Mohaini MA, Aldali J, Tirupathi R, Sule AA, Koritala T, Adhikari R, Bilal M, Dhawan M, Mohapatra RK, Tiwari R, Sami SA, Mitra S, Pandey MK, Harapan H, Emran TB, Dhama K. Comparative pathology, molecular pathogenicity, immunological features, and genetic characterization of three highly pathogenic human coronaviruses (MERS-CoV, SARS-CoV, and SARS-CoV-2). Eur Rev Med Pharmacol Sci 2021; 25:7162-7184. [PMID: 34859882 DOI: 10.26355/eurrev_202111_27270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The last two decades have witnessed the emergence of three deadly coronaviruses (CoVs) in humans: severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). There are still no reliable and efficient therapeutics to manage the devastating consequences of these CoVs. Of these, SARS-CoV-2, the cause of the currently ongoing coronavirus disease 2019 (COVID-19) pandemic, has posed great global health concerns. The COVID-19 pandemic has resulted in an unprecedented crisis with devastating socio-economic and health impacts worldwide. This highlights the fact that CoVs continue to evolve and have the genetic flexibility to become highly pathogenic in humans and other mammals. SARS-CoV-2 carries a high genetic homology to the previously identified CoV (SARS-CoV), and the immunological and pathogenic characteristics of SARS-CoV-2, SARS-CoV, and MERS contain key similarities and differences that can guide therapy and management. This review presents salient and updated information on comparative pathology, molecular pathogenicity, immunological features, and genetic characterization of SARS-CoV, MERS-CoV, and SARS-CoV-2; this can help in the design of more effective vaccines and therapeutics for countering these pathogenic CoVs.
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Affiliation(s)
- A A Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia.
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Rabaan AA, Al Mutair A, Alhumaid S, Al Alawi Z, Al Mohaini M, Alsalman AJ, Fawzy M, Al-Tawfiq JA, Almahmoud S, Alfouzan W, Bilal M, Dhawan M, Mohapatra RK, Tiwari R, Khan Z, Mitra S, Emran TB, Dhama K. Modulation of host epigenome by coronavirus infections and developing treatment modalities for COVID-19 beyond genetics. Eur Rev Med Pharmacol Sci 2021; 25:5947-5964. [PMID: 34661254 DOI: 10.26355/eurrev_202110_26872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The recent Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) outbreak has resulted in coronavirus disease 2019 (COVID-19) pandemic worldwide, affecting millions of lives. Although vaccines are presently made available, and vaccination drive is in progress to immunize a larger population; still the risk of SARS-CoV-2 infection and related mortality is persistent amid threats of the third wave of the ongoing pandemic. In the scenario of unavailability of robust and efficient treatment modalities, it becomes essential to understand the mechanism of action of the virus and deeply study the molecular mechanisms (both at the virus level and the host level) underlying the infection processes. Recent studies have shown that coronaviruses (CoVs) cause-specific epigenetic changes in the host cells to create a conducive microenvironment for replicating, assembling, and spreading. Epigenetic mechanisms can contribute to various aspects of the SARS-CoV-2 multiplication cycle, like expressing cytokine genes, viral receptor ACE2, and implicating different histone modifications. For SARS-CoV-2 infection, viral proteins are physically associated with various host proteins resulting in numerous interactions between epigenetic enzymes (i.e., histone deacetylases, bromodomain-containing proteins). The involvement of epigenetic mechanisms in the virus life cycle and the host immune responses to control infection result in epigenetic factors recognized as emerging prognostic COVID-19 biomarkers and epigenetic modulators as robust therapeutic targets to curb COVID-19. Therefore, this narrative review aimed to summarize and discuss the various epigenetic mechanisms that control gene expression and how these mechanisms are altered in the host cells during coronavirus infection. We also discuss the opportunities to exploit these epigenetic changes as therapeutic targets for SARS-CoV-2 infection. Epigenetic alterations and regulation play a pivotal role at various levels of coronavirus infection: entry, replication/transcription, and the process of maturation of viral proteins. Coronaviruses modulate the host epigenome to escape the host immune mechanisms. Therefore, host epigenetic alterations induced by CoVs can be considered to develop targeted therapies for COVID-19.
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Affiliation(s)
- A A Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia.
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Gulia S, Kaur S, Mendiratta S, Tiwari R, Goyal SK, Gargava P, Kumar R. Performance evaluation of air pollution control device at traffic intersections in Delhi. Int J Environ Sci Technol (Tehran) 2021; 19:785-796. [PMID: 34548875 PMCID: PMC8447116 DOI: 10.1007/s13762-021-03641-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/09/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED Urban air pollution and exposure-related health impacts are being noticed and discussed very intensely in India. On the other hand, source-specific control is the primary focus for policymakers; however, diverse and complex sources make it difficult to immediately see the action and consequent impacts on better air quality. Many cities across the world have witnessed high air pollution levels at traffic junctions, more so in all Indian cities. Site-specific air pollution reduction can be a promising solution for managing the pollution level at highly polluted locations. CSIR-National Environmental Engineering Research Institute, India, has designed and developed Wind Augmentation and purifYing Unit (WAYU) to remove particulate and gaseous pollutants from urban hot spots such as traffic locations. In the present study, the authors attempted to evaluate the performance of two different designs of WAYU for the removal of particulate matters from polluted air at different traffic locations in Delhi City, the national capital territory of India. The performance analyses show that the current design of WAYU removes PM10 and PM2.5 concentrations in the range of 34-49% and 19-25%, respectively from the inlet air. The total PM collected from all WAYU devices was 34.19 kg from 120,557 operating hours' at all the sampling sites. The PM removal rate depends on the size-segregated particulate matter pollution load in the ambient air. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13762-021-03641-3.
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Affiliation(s)
- S. Gulia
- CSIR-National Environmental Engineering Research Institute Delhi Zonal Centre, Naraina, New Delhi, India
| | - S. Kaur
- CSIR-National Environmental Engineering Research Institute Mumbai Zonal Centre, Worli, Mumbai India
| | - S. Mendiratta
- CSIR-National Environmental Engineering Research Institute Delhi Zonal Centre, Naraina, New Delhi, India
| | - R. Tiwari
- CSIR-National Environmental Engineering Research Institute Delhi Zonal Centre, Naraina, New Delhi, India
| | - S. K. Goyal
- CSIR-National Environmental Engineering Research Institute Delhi Zonal Centre, Naraina, New Delhi, India
| | - P. Gargava
- Central Pollution Control Board, East Arjun Nagar, New Delhi, India
| | - R. Kumar
- CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, India
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Tiwari R, Gloor E, da Cruz WJA, Schwantes Marimon B, Marimon-Junior BH, Reis SM, de Souza IA, Krause HG, Slot M, Winter K, Ashley D, Béu RG, Borges CS, Da Cunha M, Fauset S, Ferreira LDS, Gonçalves MDA, Lopes TT, Marques EQ, Mendonça NG, Mendonça NG, Noleto PT, de Oliveira CHL, Oliveira MA, Pireda S, Dos Santos Prestes NCC, Santos DM, Santos EB, da Silva ELS, de Souza IA, de Souza LJ, Vitória AP, Foyer CH, Galbraith D. Photosynthetic quantum efficiency in south-eastern Amazonian trees may be already affected by climate change. Plant Cell Environ 2021; 44:2428-2439. [PMID: 32339294 DOI: 10.1111/pce.13770] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Tropical forests are experiencing unprecedented high-temperature conditions due to climate change that could limit their photosynthetic functions. We studied the high-temperature sensitivity of photosynthesis in a rainforest site in southern Amazonia, where some of the highest temperatures and most rapid warming in the Tropics have been recorded. The quantum yield (Fv /Fm ) of photosystem II was measured in seven dominant tree species using leaf discs exposed to varying levels of heat stress. T50 was calculated as the temperature at which Fv /Fm was half the maximum value. T5 is defined as the breakpoint temperature, at which Fv /Fm decline was initiated. Leaf thermotolerance in the rapidly warming southern Amazonia was the highest recorded for forest tree species globally. T50 and T5 varied between species, with one mid-storey species, Amaioua guianensis, exhibiting particularly high T50 and T5 values. While the T50 values of the species sampled were several degrees above the maximum air temperatures experienced in southern Amazonia, the T5 values of several species are now exceeded under present-day maximum air temperatures.
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Affiliation(s)
| | | | | | | | - Ben Hur Marimon-Junior
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Simone M Reis
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Igor Araújo de Souza
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Heinrich G Krause
- Smithsonian Tropical Research Institute, Panama City, Panama
- Institute of Plant Biochemistry, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Martijn Slot
- Smithsonian Tropical Research Institute, Panama City, Panama
| | - Klaus Winter
- Smithsonian Tropical Research Institute, Panama City, Panama
| | - David Ashley
- School of Geography, University of Leeds, Leeds, UK
| | - Raiane G Béu
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Camila S Borges
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Maura Da Cunha
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos Dos Goytacazes, Brazil
| | - Sophie Fauset
- Faculty of Science and Engineering, School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, UK
| | - Laura D S Ferreira
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | | | - Thaynara T Lopes
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Eduardo Q Marques
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Natalia G Mendonça
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Natana G Mendonça
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Pedro T Noleto
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | | | - Milene A Oliveira
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Saulo Pireda
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos Dos Goytacazes, Brazil
| | | | - Denilson M Santos
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Eduarda B Santos
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | | | - Izabel A de Souza
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Luciana J de Souza
- Universidade do Estado de Mato Grosso, Laboratório de Ecologia Vegetal, Nova Xavantina, Brazil
| | - Angela P Vitória
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos Dos Goytacazes, Brazil
| | - Christine H Foyer
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
- School of Biosciences, University of Birmingham, Birmingham, UK
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Fowler NH, Dickinson M, Martinez‐Lopez J, Kolstad A, Schuster SJ, Dreyling M, Ghosh M, Harigae H, Kersten MJ, Bachy E, Popplewell L, Chavez JC, Ho PJ, Butler J, Kato K, Tresckow B, Ferreri AJM, Simón JAP, Patten PEM, Andreadis C, Riedell PA, McGuirk JP, Nastoupil LJ, Teshima T, Offner F, Petzer A, Viardot A, Zinzani PL, Malladi R, Zhang J, Tiwari R, Bollu V, Masood A, Thieblemont C. PATIENT‐REPORTED QUALITY OF LIFE (QOL) FOLLOWING TISAGENLECLEUCEL (TISA‐CEL) INFUSION IN ADULT PATIENTS (PTS) WITH RELAPSED/REFRACTORY FOLLICULAR LYMPHOMA (R/R FL). Hematol Oncol 2021. [DOI: 10.1002/hon.178_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- N. H. Fowler
- The University of Texas MD Anderson Cancer Center Department of Lymphoma‐Myeloma Houston Texas USA
| | - M. Dickinson
- Royal Melbourne Hospital Peter MacCallum Cancer Centre Melbourne Australia
| | | | - A. Kolstad
- Oslo University Hospital Department of Oncology Oslo Norway
| | - S. J. Schuster
- University of Pennsylvania Lymphoma Program Philadelphia Pennsylvania USA
| | - M. Dreyling
- LMU Klinikum Medizinische Klinik III Munich Germany
| | - M. Ghosh
- University of Michigan Michigan Medicine Ann Arbor Michigan USA
| | - H. Harigae
- Tohoku University Hospital Department of Hematology and Rheumatology Sendai Japan
| | - M. José Kersten
- Amsterdam UMC University of Amsterdam on behalf of HOVON/LLPC Department of Hematology Amsterdam Netherlands
| | - E. Bachy
- Université Claude Bernard Lyon 1 Hospices Civils de Lyon Lyon France
| | - L. Popplewell
- City of Hope National Medical Center Department of Hematology & Hematopoietic Cell Transplantation Duarte California USA
| | - J. C. Chavez
- Moffitt Cancer Center Department of Malignant Hematology Tampa Florida USA
| | - P. J. Ho
- Royal Prince Alfred Hospital and University of Sydney Institute of Haematology Camperdown Australia
| | - J. Butler
- Royal Brisbane Hospital Haematology and Bone Marrow Transplant Unit Herston Australia
| | - K. Kato
- Kyushu University Hospital Hematology, Oncology, & Cardiovascular Medicine Fukuoka Japan
| | - B. Tresckow
- University Hospital Essen University of Duisburg‐Essen Clinic for Hematology and Stem Cell Transplantation West German Cancer Center Essen Germany
| | - A. J. M. Ferreri
- IRCCS Ospedale San Raffaele Department of Onco‐hematology Milan Italy
| | - J. A. P. Simón
- University Hospital Virgen del Rocío Instituto de Biomedicina de Sevilla (IBIS / CSIC / CIBERONC) Universidad de Sevilla Department of Hematology Sevilla Spain
| | - P. E. M. Patten
- King’s College Hospital and King’s College London Division of Cancer Studies London UK
| | - C. Andreadis
- University of California San Francisco Helen Diller Family Comprehensive Cancer Center San Francisco California USA
| | - P. A. Riedell
- University of Chicago Medical Center Department of Medicine Chicago Illinois USA
| | - J. P. McGuirk
- University of Kansas Medical Center Division of Hematologic Malignancies and Cellular Therapeutics Kansas City Kansas USA
| | - L. J. Nastoupil
- The University of Texas MD Anderson Cancer Center Department of Lymphoma‐Myeloma Houston Texas USA
| | - T. Teshima
- Hokkaido University Hospital Department of Hematology Sapporo Japan
| | - F. Offner
- UZ Gent Department of Hematology Gent Belgium
| | - A. Petzer
- Ordensklinikum Linz GmbH Elisabethinen Internal Medicine I Linz Austria
| | - A. Viardot
- University Hospital of Ulm Department of Internal Medicine III Ulm Germany
| | - P. L. Zinzani
- University of Bologna Institute of Hematology “Seràgnoli” Bologna Italy
| | - R. Malladi
- Cambridge University Hospitals NHS Foundation Trust Centre for Clinical Haematology Cambridge UK
| | - J. Zhang
- Novartis Pharmaceuticals Corporation Global Value and Access East Hanover New Jersey USA
| | - R. Tiwari
- Novartis Healthcare Pvt. Ltd Biostatistics Hyderabad India
| | - V. Bollu
- Novartis Pharmaceuticals Corporation Health Economics and Outcomes Research East Hanover New Jersey USA
| | - A. Masood
- Novartis Pharmaceuticals Corporation Clinical Development East Hanover New Jersey USA
| | - C. Thieblemont
- Hôpital Saint‐Louis‐Université de Paris Service d'Hématologie‐Oncologie Paris France
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Lee A, Tiwari R, Chua M, Kanesvaran R, Lee L. Our initial experience with running a urological-oncology Multi-Disciplinary Team (MDT) clinic - A new model of care. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00592-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Ganapathy S, Gill M, Maheshwari V, Lingaraju T, Debnath C, Tiwari R. Subependymal giant cell astrocytoma (SEGA) in a mother & son with tuberous sclerosis complex (TS): A rare case report & review of literature. Interdisciplinary Neurosurgery 2021. [DOI: 10.1016/j.inat.2020.101047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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14
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Tiwari R, Pandey SK, Goel S, Bhatia V, Shukla S, Jing X, Dhanasekaran SM, Ateeq B. Correction: SPINK1 promotes colorectal cancer progression by downregulating Metallothioneins expression. Oncogenesis 2021; 10:16. [PMID: 33619267 PMCID: PMC7900126 DOI: 10.1038/s41389-021-00305-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- R Tiwari
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - S K Pandey
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - S Goel
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - V Bhatia
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India
| | - S Shukla
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
| | - X Jing
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
| | - S M Dhanasekaran
- Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA.,Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - B Ateeq
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, India.
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Sharun K, Jose B, Tiwari R, Natesan S, Dhama K. Biodetection dogs for COVID-19: an alternative diagnostic screening strategy. Public Health 2021; 197:e10-e12. [PMID: 33618893 PMCID: PMC7817409 DOI: 10.1016/j.puhe.2020.12.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 12/28/2020] [Indexed: 12/17/2022]
Affiliation(s)
- K Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India.
| | - B Jose
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Bareilly, Uttar Pradesh, India
| | - R Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan (DUVASU), Mathura 281001, India
| | - S Natesan
- Department of Infectious Diseases, Indian Institute of Public Health Gandhinagar, Lekawada, Ganghinagar, Gujarat 382042, India
| | - K Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243 122, Uttar Pradesh, India.
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Tiwari R, Singhal P, Verma N, Sehra R, Yadav R, Agarwal S, Prasad B. Is It Wise to Wait for Ear to Become Dry in Indian Scenario? Indian J Otolaryngol Head Neck Surg 2020; 72:448-452. [PMID: 33088773 DOI: 10.1007/s12070-020-01896-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/04/2020] [Indexed: 11/26/2022] Open
Abstract
Tympanoplasty is the standard and well-established procedure for closure of tympanic membrane perforations. Tympanoplasty in wet ear is still a topic of debate among ENT surgeons. This study discusses the balance between wait and watch policy and early intervention in wet ear. It also compares the rate of graft uptake and hearing improvement in Type I tympanoplasty in dry and wet ears. This is a hospital based, observational, descriptive and comparative study. Total 246 patients enrolled in the study. Two groups were created with 123 patients in each group. One included dry ears and another included wet ears. All patients had mucosal type of chronic otitis media. They all underwent Type I tympanoplasty. Graft uptake rate and hearing was compared between both groups. The overall success rate (graft uptake) was 91.06% (224). The success rate in dry ear group was 93.50% (115) and in wet ear group it was 88.62% (109). This study concluded that there is no added advantage of drying the ear rather the delay in treatment increases morbidity and drop outs in Indian scenario.
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Affiliation(s)
| | - Pawan Singhal
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
| | - Namita Verma
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
| | - Ritu Sehra
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
| | - Rajeev Yadav
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
- Department of Preventive and Social Medicine, SMS Medical College, Jaipur, Rajasthan India
| | - Sunita Agarwal
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
| | - Beni Prasad
- Department of Otorhinolaryngology, SMS Medical College, 78 A, Lipi Clinics, Vishnupuri, Durgapura, Jaipur, Rajasthan 302018 India
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Roghmans F, Evdochenko E, Martí-Calatayud M, Garthe M, Tiwari R, Walther A, Wessling M. On the permselectivity of cation-exchange membranes bearing an ion selective coating. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.117854] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Gandhi A, Rastogi M, Tiwari R, Khurana R, Hadi R, Sapru S, Rath S, Nanda S, Srivastva A, Bharati A, Mishra S. Prospective Evaluation of Definitive Chemoradiotherapy with Volumetric Modulated Arc Therapy (VMAT) in Patients of Muscle Invasive Carcinoma of Urinary Bladder Unsuitable for Radical Surgery. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Jaeger U, Tam C, Borchmann P, McGuirk J, Holte H, Waller E, Jaglowski S, Andreadis C, Foley S, Fleury I, Westin J, Teshima T, Mielke S, Salles G, Ho P, Izutsu K, Schuster S, Bachanova V, Maziarz R, Van Besien K, Kersten M, Wagner-Johnston N, Kato K, Corradini P, Tiwari R, Forcina A, Pacaud L, Bishop M. INTRAVENOUS IMMUNOGLOBULIN THERAPY USE IN PATIENTS WITH RELAPSED/REFRACTORY DIFFUSE LARGE B-CELL LYMPHOMA TREATED WITH TISAGENLECLEUCEL IN THE JULIET TRIAL. Hematol Oncol 2019. [DOI: 10.1002/hon.189_2631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- U. Jaeger
- Hematology and Hemostaseology; and Comprehensive Cancer Center, Medical University of Vienna; Vienna Austria
| | - C. Tam
- Department of Hematology; Peter MacCallum Cancer Centre; Melbourne Australia
| | - P. Borchmann
- Department of Hematology/Oncology; University Hospital of Cologne; Cologne Germany
| | - J. McGuirk
- Division of Hematologic Malignancies and Cellular Therapeutics; Kansas Hospital and Medical Center; Kansas City United States
| | - H. Holte
- Lymphoma Section; University of Oslo, Oslo
| | - E. Waller
- Hematology and Medical Oncology; Medicine and Pathology, Emory University School of Medicine; Atlanta United States
| | - S. Jaglowski
- Department of Hematology; Ohio State University, Columbus
| | - C. Andreadis
- Department of Hematology and Blood and Marrow Transplant; University of California San Francisco; San Francisco United States
| | - S.R. Foley
- Division of Clinical Pathology; McMaster University; Hamilton Canada
| | - I. Fleury
- Department of Hematology; Hôpital Maisonneuve-Rosemont; Montreal Canada
| | - J. Westin
- Department of Lymphoma & Meyloma; MD Anderson Cancer Center; Houston United States
| | - T. Teshima
- Department of Hematology; Hokkaido University Hospital; Sapporo Japan
| | - S. Mielke
- Department of Internal Medicine; University Hospital Wuerzburg; Wuerzburg Germany
| | - G. Salles
- Department of Hematology/Oncology; Hospital Center Lyon-Sud; Pierre-Benite France
| | - P.J. Ho
- Department of Haematology; Royal Prince Alfred Hospital; Camperdown Australia
| | - K. Izutsu
- Department of Hematology; National Cancer Center Hospital; Tokyo Japan
| | - S. Schuster
- Division of Hematology Oncology; University of Pennsylvania; Philadelphia United States
| | - V. Bachanova
- Division of Hematology; Oncology and Transplantation, University of Minnesota; Minneapolis United States
| | - R. Maziarz
- Department of Hematology; Oregon Health and Science University; Portland United States
| | - K. Van Besien
- Department of Medical Oncology; Weill Cornell Medicine; New York United States
| | - M.J. Kersten
- Department of Hematology; Academic Medical Center; Amsterdam Netherlands
| | - N. Wagner-Johnston
- Department of Hematology/Oncology; Johns Hopkins Sidney Kimmel Comprehensive Cancer Center; Baltimore United States
| | - K. Kato
- Department of Haematology; Kyushu University Hospital; Fukuoka Prefecture Japan
| | - P. Corradini
- Department of Oncology and Hemato-oncology; University of Milan; Milan Italy
| | - R. Tiwari
- Global Medical Affaris; Novartis Pharmaceuticals Corporation; Hyderabad India
| | - A. Forcina
- Novartis Oncology; Novartis Pharma AG; Basel Switzerland
| | - L. Pacaud
- Novartis Oncology; Novartis Pharmaceuticals Corporation; East Hanover United States
| | - M. Bishop
- Section of Hematology/Oncology; University of Chicago; Chicago United States
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Raghunath S, Tiwari R, Narayanan G, Vishwanathan B, Sultana R. PO-0803 Endoluminal brachytherapy with induction chemotherapy and definitive chemoradiation in Ca.Esophagus. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31223-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Raghunath S, Tiwari R, Narayanan G, Vishwanathan B, Sultana R. OC-0432 Endoluminal brachytherapy with induction chemotherapy and definitive chemoradiation in Ca.Esophagus. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30852-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rakibe U, Tiwari R, Rane V, Wakte P. UPLC, HR-MS, and in-silico tools for simultaneous separation, characterization, and in-silico toxicity prediction of degradation products of atorvastatin and olmesartan. ACTA CHROMATOGR 2019. [DOI: 10.1556/1326.2017.00333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- U. Rakibe
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
| | - R. Tiwari
- Department of Pharmaceutical Sciences, SVKM's NMIMS, Shirpur, Dist. Dhule, Maharashtra, India
| | - V. Rane
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
| | - P. Wakte
- Department of Chemical Technology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, India
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Limbachiya D, Shah S, Gandhi P, Kenkre M, Tiwari R. Laparoscopic Management of Obstetric Haemorrhage. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Darwish S, Noreddin A, Tiwari R, Elkhatib WF. In Silico Design, Synthesis, and In Vitro Evaluation of Novel Amphipathic Short Linear Peptides Against Clinically Relevant Bacterial Biofilms. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9755-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Saxena S, Kanaujia B, Dwari S, Kumar S, Tiwari R. MIMO antenna with built‐in circular shaped isolator for sub‐6 GHz 5G applications. Electron lett 2018; 54:478-480. [DOI: 10.1049/el.2017.4514] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Affiliation(s)
- S. Saxena
- Department of Electronics EngineeringIndian Institute of Technology (ISM)DhanbadJharkhandIndia
| | | | - S. Dwari
- Department of Electronics EngineeringIndian Institute of Technology (ISM)DhanbadJharkhandIndia
| | - S. Kumar
- Department of ECESRM UniversityChennaiTamil NaduIndia
| | - R. Tiwari
- Department of ECE, Faculty of Technology (SCRIET)CCS UniversityMeerutUttar PradeshIndia
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Singh AK, Fulton Z, Tiwari R, Zhang X, Lu L, Altmeyer WB, Tantiwongkosi B. Basion-Cartilaginous Dens Interval: An Imaging Parameter for Craniovertebral Junction Assessment in Children. AJNR Am J Neuroradiol 2017; 38:2380-2384. [PMID: 28982790 DOI: 10.3174/ajnr.a5400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/03/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Widening of the basion-dens interval is an important sign of cranioverterbral junction injury. The current literature on basion-dens interval in children is sparse and based on bony measurements with variable values. Our goal was to establish the normal values of a recently described new imaging parameter, the basion-cartilaginous dens interval in children. MATERIALS AND METHODS Three hundred healthy pediatric patients (0-10 years of age) were selected retrospectively. These patients were divided into 3 different groups: A (0-3 years), B (3-6 years), and C (6-10 years). The basion-cartilaginous dens interval was calculated on the sagittal MPR image of cervical spine CT in a soft-tissue window. The mean, SD, and the upper limit of normal (mean +2 SDs) of the 3 groups were calculated, and statistical tests were used to check for significant differences of the basion-cartilaginous dens interval among these 3 groups. RESULTS The upper limits of the basion-cartilaginous dens interval for the 3 groups were 5.34 mm in group A, 5.64 mm in group B, and 7.24 mm in group C. There were statistically significant differences in the basion-cartilaginous dens interval values among the 3 groups. There was no statistically significant difference in basion-cartilaginous dens interval values between groups A and B; however, values in group C were significantly different from those in both A and B. There was no statistically significant difference in the basion-cartilaginous dens interval values between males and females. CONCLUSIONS The basion-cartilaginous dens interval is a novel imaging parameter to assess cranioverterbral junction integrity in children, which includes the nonossified cartilage in the measurement.
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Affiliation(s)
- A K Singh
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas.
| | - Z Fulton
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - R Tiwari
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - X Zhang
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - L Lu
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - W B Altmeyer
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - B Tantiwongkosi
- From the Department of Radiology, University of Texas Health Science Center San Antonio, San Antonio, Texas
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Tripathi P, Tiwari R, Kamath R. Workplace Violence and Gender Bias in Unorganized Fisheries of Udupi, India. Int J Occup Environ Med 2017; 7:181-5. [PMID: 27393325 PMCID: PMC6818085 DOI: 10.15171/ijoem.2016.788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/17/2016] [Indexed: 11/09/2022]
Abstract
Fisheries industry in India is an unorganized sector of occupation where considerable proportionof workers is female. However, the prevalent gender inequality in terms of task allocation,wages, and other welfare facilities makes the men as dominant workforce. Furthermore,there are occasions when incidents of workplace violence take place. The present study wasconducted to find the prevalence of workplace violence at worksite and study gender bias insuch events. In a cross-sectional study 171 fishermen and fisherwomen were interviewed tocollect information about workplace violence. The overall prevalence of workplace violencereported was 14.6%. This included 2 (8%) cases of physical assault, 1 (4%) case of sexualharassment of fisherwoman by her colleague and 22 (88%) cases of verbal abuse. A significant(p=0.002) association was found between gender and verbal abuse at the workplace. Inconclusion, this study highlighted the occurrence of workplace violence among fishery workersin India. There was a gender bias towards females that can be attributed to male dominancein this occupation.
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Darwish S, Parang K, Marshall J, Goebel DJ, Tiwari R. Efficient synthesis of CN2097 using in situ activation of sulfhydryl group. Tetrahedron Lett 2017; 58:3053-3056. [PMID: 28824209 DOI: 10.1016/j.tetlet.2017.06.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
CN2097 (R7Cs-sCYK[KTE(β-Ala)]V) is a rationally designed peptidomimetic that shows effectiveness in preclinical models for the treatment of neurological disorders, such as Angelman syndrome, traumatic brain injury (TBI) and stroke. Because of its therapeutic activity for the treatment of human CNS disorders, there was an urgent need to develop an efficient strategy for large-scale synthesis of CN2097. The synthesis of CN2097 was accomplished using Fmoc/tBu solid phase chemistry in multiple steps. Two different peptide fragments (activated polyarginine peptide Npys-sCR7 and CYK[KTE(β-Ala)]V) were synthesized, followed by solution phase coupling in water. Activation of the polyarginine (CR7) was achieved in situ during cleavage of protected peptide (C(Trt)R(Pbf)7) from the Rink amide resin using 5 equiv. of 2,2-dithopyridine in TFA:TIS:H2O (95:2.5:2.5, v/v/v) for 4 h. The disulfide coupling was efficient which provided a 60% yield.
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Affiliation(s)
- Shaban Darwish
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, USA.,Organometallic and Organometalloid Chemistry Department, National Research Centre, El Bohouth st., Dokki, Giza, Egypt
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, USA
| | - John Marshall
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, RI, USA
| | - Dennis J Goebel
- Department of Anatomy and Cell Biology, Wayne State University, Detroit, Michigan, USA
| | - Rakesh Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, USA
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Riahifard N, Tavakoli K, Yamaki J, Parang K, Tiwari R. Synthesis and Evaluation of Antimicrobial Activity of [R₄W₄K]-Levofloxacin and [R₄W₄K]-Levofloxacin-Q Conjugates. Molecules 2017; 22:E957. [PMID: 28594345 PMCID: PMC6152667 DOI: 10.3390/molecules22060957] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/06/2017] [Accepted: 06/06/2017] [Indexed: 11/16/2022] Open
Abstract
The development of a new class of antibiotics to fight bacterial resistance is a time-consuming effort associated with high-cost and commercial risks. Thus, modification, conjugation or combination of existing antibiotics to enhance their efficacy is a suitable strategy. We have previously reported that the amphiphilic cyclic peptide [R₄W₄] had antibacterial activity with a minimum inhibitory concentration (MIC) of 2.97 µg/mL against Methicillin-resistant Staphylococcus aureus (MRSA). Herein, we hypothesized that conjugation or combination of the amphiphilic cyclic peptide [R₄W₄] with levofloxacin or levofloxacin-Q could improve the antibacterial activity of levofloxacin and levofloxacin-Q. Fmoc/tBu solid-phase chemistry was employed to synthesize conjugates of [R₄W₄K]-levofloxacin-Q and [R₄W₄K]-levofloxacin. The carboxylic acid group of levofloxacin or levofloxacin-Q was conjugated with the amino group of β-alanine attached to lysine in the presence of 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) and N,N-diisopropylethylamine (DIPEA) for 3 h to afford the products. Antibacterial assays were conducted to determine the potency of conjugates [R₄W₄K]-levofloxacin-Q and [R₄W₄K]-levofloxacin against MRSA and Klebsiella pneumoniae. Although levofloxacin-Q was inactive even at a concentration of 128 µg/mL, [R₄W₄K]-levofloxacin-Q conjugate and the corresponding physical mixture showed MIC values of 8 µg/mL and 32 µg/mL against MRSA and Klebsiella pneumonia, respectively, possibly due to the activity of the peptide. On the other hand, [R₄W₄K]-levofloxacin conjugate (MIC = 32 µg/mL and MIC = 128 µg/mL) and the physical mixture (MIC = 8 µg/mL and 32 µg/mL) was less active than levofloxacin (MIC = 2 µg/mL and 4 = µg/mL) against MRSA and Klebsiella pneumoniae, respectively. The data showed that the conjugation of levofloxacin with [R₄W₄K] significantly reduced the antibacterial activity compared to the parent analogs, while [R₄W₄K]-levofloxacin-Q conjugate was more significantly potent than levofloxacin-Q alone.
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Affiliation(s)
- Neda Riahifard
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA.
| | - Kathy Tavakoli
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA.
| | - Jason Yamaki
- Department of Pharmacy Practice, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA.
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA.
| | - Rakesh Tiwari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA.
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Banerjee A, Sayeh N, Nasrolahi Shirazi A, Tiwari R, Parang K, Yadav A. Arginine-rich Cyclic Peptides Enhance Cellular Delivery of Anticancer Agents: Molecular Insights. LETT DRUG DES DISCOV 2016. [DOI: 10.2174/1570180813999160429113034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mishra P, Kumar A, Nagireddy A, Mani DN, Shukla AK, Tiwari R, Sundaresan V. DNA barcoding: an efficient tool to overcome authentication challenges in the herbal market. Plant Biotechnol J 2016; 14:8-21. [PMID: 26079154 DOI: 10.1111/pbi.12419] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/28/2015] [Accepted: 05/16/2015] [Indexed: 05/21/2023]
Abstract
The past couple of decades have witnessed global resurgence of herbal-based health care. As a result, the trade of raw drugs has surged globally. Accurate and fast scientific identification of the plant(s) is the key to success for the herbal drug industry. The conventional approach is to engage an expert taxonomist, who uses a mix of traditional and modern techniques for precise plant identification. However, for bulk identification at industrial scale, the process is protracted and time-consuming. DNA barcoding, on the other hand, offers an alternative and feasible taxonomic tool box for rapid and robust species identification. For the success of DNA barcode, the barcode loci must have sufficient information to differentiate unambiguously between closely related plant species and discover new cryptic species. For herbal plant identification, matK, rbcL, trnH-psbA, ITS, trnL-F, 5S-rRNA and 18S-rRNA have been used as successful DNA barcodes. Emerging advances in DNA barcoding coupled with next-generation sequencing and high-resolution melting curve analysis have paved the way for successful species-level resolution recovered from finished herbal products. Further, development of multilocus strategy and its application has provided new vistas to the DNA barcode-based plant identification for herbal drug industry. For successful and acceptable identification of herbal ingredients and a holistic quality control of the drug, DNA barcoding needs to work harmoniously with other components of the systems biology approach. We suggest that for effectively resolving authentication challenges associated with the herbal market, DNA barcoding must be used in conjunction with metabolomics along with need-based transcriptomics and proteomics.
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Affiliation(s)
- Priyanka Mishra
- Department of Biology & Systematics, CSIR - Central Institute of Medicinal and Aromatic Plants, Research Centre, Bangalore, Karnataka, India
| | - Amit Kumar
- Department of Biology & Systematics, CSIR - Central Institute of Medicinal and Aromatic Plants, Research Centre, Bangalore, Karnataka, India
| | - Akshitha Nagireddy
- Department of Biology & Systematics, CSIR - Central Institute of Medicinal and Aromatic Plants, Research Centre, Bangalore, Karnataka, India
| | - Daya N Mani
- Herbal Medicinal Products Department, CSIR - Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Ashutosh K Shukla
- Biotechnology Division, CSIR - Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Rakesh Tiwari
- Publication Division, CSIR - Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh, India
| | - Velusamy Sundaresan
- Department of Biology & Systematics, CSIR - Central Institute of Medicinal and Aromatic Plants, Research Centre, Bangalore, Karnataka, India
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Marshall J, Wong KY, Rupasinghe CN, Tiwari R, Zhao X, Berberoglu ED, Sinkler C, Liu J, Lee I, Parang K, Spaller MR, Hüttemann M, Goebel DJ. Inhibition of N-Methyl-D-aspartate-induced Retinal Neuronal Death by Polyarginine Peptides Is Linked to the Attenuation of Stress-induced Hyperpolarization of the Inner Mitochondrial Membrane Potential. J Biol Chem 2015; 290:22030-48. [PMID: 26100636 DOI: 10.1074/jbc.m115.662791] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Indexed: 02/02/2023] Open
Abstract
It is widely accepted that overactivation of NMDA receptors, resulting in calcium overload and consequent mitochondrial dysfunction in retinal ganglion neurons, plays a significant role in promoting neurodegenerative disorders such as glaucoma. Calcium has been shown to initiate a transient hyperpolarization of the mitochondrial membrane potential triggering a burst of reactive oxygen species leading to apoptosis. Strategies that enhance cell survival signaling pathways aimed at preventing this adverse hyperpolarization of the mitochondrial membrane potential may provide a novel therapeutic intervention in retinal disease. In the retina, brain-derived neurotrophic factor has been shown to be neuroprotective, and our group previously reported a PSD-95/PDZ-binding cyclic peptide (CN2097) that augments brain-derived neurotrophic factor-induced pro-survival signaling. Here, we examined the neuroprotective properties of CN2097 using an established retinal in vivo NMDA toxicity model. CN2097 completely attenuated NMDA-induced caspase 3-dependent and -independent cell death and PARP-1 activation pathways, blocked necrosis, and fully prevented the loss of long term ganglion cell viability. Although neuroprotection was partially dependent upon CN2097 binding to the PDZ domain of PSD-95, our results show that the polyarginine-rich transport moiety C-R(7), linked to the PDZ-PSD-95-binding cyclic peptide, was sufficient to mediate short and long term protection via a mitochondrial targeting mechanism. C-R(7) localized to mitochondria and was found to reduce mitochondrial respiration, mitochondrial membrane hyperpolarization, and the generation of reactive oxygen species, promoting survival of retinal neurons.
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Affiliation(s)
- John Marshall
- From the Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, Rhode Island, 02912
| | - Kwoon Y Wong
- the Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan 48105
| | - Chamila N Rupasinghe
- the Geisel School of Medicine at Dartmouth, Department of Pharmacology and Toxicology, and Norris Cotton Cancer Center, Lebanon, New Hampshire 03756
| | - Rakesh Tiwari
- the Chapman University School of Pharmacy, Irvine, California 92618
| | - Xiwu Zhao
- the Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan 48105
| | | | - Christopher Sinkler
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan 48201, and
| | - Jenney Liu
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan 48201, and
| | - Icksoo Lee
- the College of Medicine, Dankook University, Cheonan-si, Chungcheongnam-do, 330-714, Republic of Korea
| | - Keykavous Parang
- the Chapman University School of Pharmacy, Irvine, California 92618
| | - Mark R Spaller
- the Geisel School of Medicine at Dartmouth, Department of Pharmacology and Toxicology, and Norris Cotton Cancer Center, Lebanon, New Hampshire 03756
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan 48201, and
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Abstract
A fascinating and important arbovirus is Ross River Virus (RRV) which is endemic and epizootic in nature in certain parts of the world. RRV is a member of the genus Alphavirus within the Semliki Forest complex of the family Togaviridae, which also includes the Getah virus. The virus is responsible for causing disease both in humans as well as horses. Mosquito species (Aedes camptorhynchus and Aedes vigilax; Culex annulirostris) are the most important vector for this virus. In places of low temperature as well as low rainfall or where there is lack of habitat of mosquito there is also limitation in the transmission of the virus. Such probability is higher especially in temperate regions bordering endemic regions having sub-tropical climate. There is involvement of articular as well as non-articular cells in the replication of RRV. Levels of pro-inflammatory factors viz., tumor necrosis factor-alpha (TNF-α); interferon-gamma (IFN-γ); and macrophage chemo-attractant protein-1 (MAC-1) during disease pathogenesis have been found to be reduced. Reverse transcription-polymerase chain reaction (RT-PCR) is the most advanced molecular diagnostic tool along with epitope-blocking enzyme-linked immunosorbent assay (ELISA) for detecting RRV infection. Treatment for RRV infection is only supportive. Vaccination is not a fruitful approach. Precise data collection will help the researchers to understand the RRV disease dynamics and thereby designing effective prevention and control strategy. Advances in diagnosis, vaccine development and emerging/novel therapeutic regimens need to be explored to their full potential to tackle RRV infection and the disease it causes.
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Laudadio V, Lorusso V, Lastella N, Dhama K, Karthik K, Tiwari R, Alam GM, Tufarelli V. Enhancement of Nutraceutical Value of Table Eggs Through Poultry Feeding Strategies. INT J PHARMACOL 2015. [DOI: 10.3923/ijp.2015.201.212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dhama K, Kesavan M, Karthik K, . A, Tiwari R, Sunkara LT, Singh R. Neuroimmunomodulation Countering Various Diseases, Disorders, Infections, Stress and Aging. INT J PHARMACOL 2015. [DOI: 10.3923/ijp.2015.76.94] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pandey V, Verma RS, Chauhan A, Tiwari R. Compositional characteristics of the volatile oils of threeArtemisiaspp. from western Himalaya. Journal of Essential Oil Research 2014. [DOI: 10.1080/10412905.2014.987927] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Sayeh N, Shirazi A, Oh D, Sun J, Rowley D, Banerjee A, Yadav A, Tiwari R, Parang K. Amphiphilic Triazolyl Peptides: Synthesis and Evaluation as Nanostructures. CURR ORG CHEM 2014. [DOI: 10.2174/138527281820141028110625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pandey V, Verma RS, Chauhan A, Tiwari R. Compositional variation in the leaf, flower and stem essential oils of Hyssop (Hyssopus officinalis L.) from Western-Himalaya. J Herb Med 2014. [DOI: 10.1016/j.hermed.2013.12.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dhama K, Rajagunalan S, Chakraborty S, Verma AK, Kumar A, Tiwari R, Kapoor S. Food-borne pathogens of animal origin-diagnosis, prevention, control and their zoonotic significance: a review. Pak J Biol Sci 2014; 16:1076-85. [PMID: 24506006 DOI: 10.3923/pjbs.2013.1076.1085] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The term food borne diseases or food-borne illnesses or more commonly food poisoning are used to denote gastrointestinal complications that occur following recent consumption of a particular food or drink. Millions of people suffer worldwide every year and the situation is quiet grave in developing nations creating social and economic strain. The food borne pathogens include various bacteria viz., Salmonella, Campylobacter, Escherichia coli, Listeria monocytogenes, Yersinia enterocolitica, Staphylococcus, Arcobacter, Clostridium perfringens, Cl. botulinum and Bacillus cereus and helminths viz., Taenia. They also include protozoa viz., Trichinella, Sarcocystis, Toxoplasma gondii and Cryptosporidium parvum. The zoonotic potential and the ability to elaborate toxins by many of the microbes causing fatal intoxication are sufficient to understand the seriousness of the situation. The viral agents being host specific their transmission to humans through food of animal origin is not yet confirmed although these animal viruses are similar to that of viruses infecting human. Food-borne bacteria; protozoa and helminthes have complex distribution pattern in the environment and inside the host system. This along with complexity of the maintenance chain and life cycle (of parasites) has made it difficult for epidemiologist and diagnostician to undertake any immediate safety measures against them. Serological and molecular diagnostic tests viz. ELISA, Latex agglutination test, Lateral flow assays, Immunomagnetic separation assays, molecular assays viz. Polymerase Chain Reaction (PCR), multiplex PCR, immuno-PCR, Realtime PCR, Random Amplified Polymorphic DNA (RAPD)-PCR, DNA microarrays and probes are widely used. Along with these LAMP assays, Capillary Electrophoresis-Single Strand Confirmation polymorphism (CE-SSCP); Flow cytometry, FISH, Biosensors, Direct epifluorescent filter technique, nanotechnology based methods and sophisticated tools (ultrasonography, magnetic resonance imaging and chlonangio-pancreatography) have aided in the diagnosis greatly. Most of the food-borne illnesses are self-limiting but in many instances antibiotics are recommended. With the increased drug resistance however use of chicken immunoglobulin, bacteriophage therapy, probiotics and herbs are gaining much importance these days. Adoption of proper prevention and control measures (including cooking procedures; hygiene, strict adherence to HACCP principles, public awareness and disease surveillance and monitoring) are the need of hour. All these have been discussed vividly in this review to help epidemiologists, diagnosticians, clinicians and above all common people so as to enable them avoid negligence regarding such serious issue.
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Affiliation(s)
- K Dhama
- Division of Pathology, Indian Veterinary Research Institute, Izatnagar, Bareilly (U.P.)-243122, India
| | - S Rajagunalan
- Division of Veterinary Public Health, Indian Veterinary Research Institute, Izatnagar, Bareilly (U.P.)-243122, India
| | - S Chakraborty
- Animal Resource Development Department, Pt. Nehru Complex, Agartala, Tripura-799001, India
| | - A K Verma
- Department of Veterinary Epidemiology and Preventive Medicine, Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evum Go-Anusandhan Sansthan (DUVASU), Mathura (U.P.)-281001, India
| | - A Kumar
- Department of Veterinary Microbiology and Immunology, Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evum Go-Anusandhan Sansthan (DUVASU), Mathura (U.P.)-281001, India
| | - R Tiwari
- Department of Veterinary Microbiology and Immunology, Uttar Pradesh Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwa Vidyalaya Evum Go-Anusandhan Sansthan (DUVASU), Mathura (U.P.)-281001, India
| | - S Kapoor
- Department of Veterinary Microbiology, LLRUVAS, Hisar, Haryana, India
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Pemmaraju B, Agarwal HK, Oh D, Buckheit KW, Buckheit RW, Tiwari R, Parang K. Synthesis and Biological Evaluation of 5'- O-Dicarboxylic Fatty Acyl Monoester Derivatives of Anti-HIV Nucleoside Reverse Transcriptase Inhibitors. Tetrahedron Lett 2014; 55:1983-1986. [PMID: 24791029 PMCID: PMC4001930 DOI: 10.1016/j.tetlet.2014.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A number of 5'-O-dicarboxylic fatty acyl monoester derivatives of 3'-azido-3'-deoxythymidine (zidovudine, AZT), 2',3'-didehydro-2',3'-dideoxythymidine (stavudine, d4T), and 3'-fluoro-3'-deoxythymidine (alovudine, FLT) were synthesized to improve the lipophilicity and potentially the cellular delivery of parent polar 2', 3'-dideoxynucleoside (ddN) analogues. The compounds were evaluated for their anti-HIV activity. Three different fatty acids with varying chain length of suberic acid (octanedioic acid), sebacic acid (decanedioic acid), and dodecanedioic acid were used for the conjugation with the nucleosides. The compounds were evaluated for anti-HIV activity and cytotoxicity. All dicarboxylic ester conjugates of nucleosides exhibited significantly higher anti-HIV activity than that of the corresponding parent nucleoside analogs. Among all the tested conjugates, 5'-O-suberate derivative of AZT (EC50 = 0.10 nM) was found to be the most potent compound and showed 80-fold higher anti-HIV activity than AZT without any significant toxicity (TC50 > 500 nM).
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Affiliation(s)
- Bhanu Pemmaraju
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, United States
| | - Hitesh K Agarwal
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, United States
| | - Donghoon Oh
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, United States
| | - Karen W. Buckheit
- ImQuest BioSciences Inc. 7340 Executive Way, Suite R, Frederick, MD, 21704, United States
| | - Robert W. Buckheit
- ImQuest BioSciences Inc. 7340 Executive Way, Suite R, Frederick, MD, 21704, United States
| | - Rakesh Tiwari
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, United States
- School of Pharmacy, Chapman University, Orange, CA, 92618, United States
| | - Keykavous Parang
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, United States
- School of Pharmacy, Chapman University, Orange, CA, 92618, United States
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Dhama K, Singh R, Karthik K, Chakrabort S, Tiwari R, Wani M, Mohan J. Artificial Insemination in Poultry and Possible Transmission of Infectious
Pathogens: A Review. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/ajava.2014.211.228] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kumar A, Singh S, Srivastava A, Gangwar N, Singh P, Gupta S, Chaubey K, Tiwari R, Chakrabort S, Dhama K. Comparative Evaluation of ‘Indigenous’ and Commercial Vaccines in Double Challenge Model for the Control of Caprine Paratuberculosis in India. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/jbs.2014.169.182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tiwari R, Bonde C, Bothara K. LC-MS/TOF and MSnstudies on forced degradation behavior of flucloxacillin and development of a validated stability indicating LC method. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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48
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50
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Pundir R, Singh P, Neelkant, Sharma D, Kumar S, Tiwari R, Singh C, Prakash B. Characterization and evaluation of hill cattle of Garhwal region of Uttarakhand, India. INDIAN J ANIM RES 2014. [DOI: 10.5958/0976-0555.2014.00450.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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