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John G, Priyadarshini S, Babu A, Mohan H, Oh BT, Navaneethan M, Jesuraj PJ. Unleashing the room temperature boronization: Blooming of Ni-ZIF nanobuds for efficient photo/electro catalysis of water. Chemosphere 2024; 346:140574. [PMID: 37926164 DOI: 10.1016/j.chemosphere.2023.140574] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/18/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Water splitting provides an environmental-friendly and sustainable approach for generating hydrogen fuel. The inherent energetic barrier in two-core half reactions such as the Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER) leads to undesired increased overpotential and constrained reaction kinetics. These challenges pose significant challenges that demand innovative solutions to overcome. One of the efficient ways to address this issue is tailoring the morphology and crystal structure of metal-organic frameworks (MOF). Nickel Zeolite Imidazolate Framework (Ni-ZIF) is a popular MOF and it can be tailored using facile chemical methods to unleash a remarkable bifunctional electro/photo catalyst. This innovative solution holds the capability to address prevailing obstacles such as inadequate electrical conductivity and limited access to active metal centers due to the influence of organic ligands. Thereby, applying boronization to the Ni-ZIF under different duration, one can induce blooming of nanobuds under room temperature and modify oxygen vacancies in order to achieve higher reaction kinetics in electro/photo catalysis. It can be evidenced by the 24-h boronized Ni-ZIF (BNZ), exhibiting lower overpotentials as electrocatalyst (OER-396 mV & HER-174 mV @ 20 mA/cm2) in 1 M KOH electrolyte and augmented gas evolution rates when employed as a photocatalyst (Hydrogen-14.37 μmol g-1min-1 & Oxygen-7.40 μmol g-1min-1). The 24-h boronization is identified as the optimum stage of crystalline to amorphous transformation which provided crystalline/amorphous boundaries as portrayed by X-Ray diffraction (XRD) and High Resolution-Transmission Electron Microscopy (HR-TEM) analysis. The flower-like transformation of 24-BNZ, characterized by crystalline-amorphous boundaries initiates with partial disruption of Ni-N bonds and formation of Ni-B bonds as evident from X-ray Photoelectron Spectroscopy (XPS). Further, the 24-h BNZ exhibit bifunctional catalytic activities with pre-longed stability. Overall, this work presents a comprehensive study of the electrocatalytic and photocatalytic water splitting properties of the tailored Ni-ZIF material.
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Affiliation(s)
- G John
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - S Priyadarshini
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - Anandha Babu
- Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, Tamil nadu, India; Department of Physiology, Saveetha Dental college and hospitals, Saveetha Institute of Medical and Technical sciences, Saveetha University, chennai - 600077, Tamil nadu, India
| | - Harshavardhan Mohan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - M Navaneethan
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - P Justin Jesuraj
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India.
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Moses JS, John S, Monica SJ, Priyadarshini S. Determinants of Malnutrition among Elderly Women Living in Institutional Care. J Midlife Health 2023; 14:139-145. [PMID: 38029033 PMCID: PMC10664058 DOI: 10.4103/jmh.jmh_26_23] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/09/2023] [Accepted: 06/22/2023] [Indexed: 12/01/2023] Open
Abstract
Background Healthy aging and well-being are largely influenced by nutrition. Objective The objective of the study was to evaluate the risk of malnutrition in elderly women residing in institutional care and its contributing factors. Methodology One hundred institutionalized women aged 60 years and above were screened for malnutrition using Mini Nutritional Assessment (MNA) tool. Details on sociodemographic profile, physical activity, medical conditions, and food habits were gathered through researcher administered survey method. Results The study participants had an average height of 149.70 cm (±7.31), weight of 50.72 kg (±9.11), body mass index of 22.77 kg/m2 (±4.68), body fat percentage of 31.30% (±8.99), mid-arm circumference of 27.36 cm (±7.84), calf circumference of 30.11 cm (±7.51), MNA score of 10.42 (±4.06), and hand grip strength score of 18.69 kg/lbs (±3.80). Upon analyzing the MNA scores, it was found that 9% of elderly women were well nourished, 62% were at risk of malnutrition, and 29% were malnourished. A significant difference was observed in the mean MNA scores (P < 0.05). Age, education level, body fat percentage, appetite, and dental problems were significantly associated with malnutrition (P < 0.05). Conclusion Geriatric residents in old-age homes require adequate nutrition to maintain health. This can be achieved by providing individualized meal planning, reducing barriers to eating, and incorporating nutrient-dense foods.
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Affiliation(s)
- Jessica Subashini Moses
- Department of Home Science, Women’s Christian College (Autonomous), Chennai, Tamil Nadu, India
| | - Sheila John
- Department of Home Science, Women’s Christian College (Autonomous), Chennai, Tamil Nadu, India
| | - Sarah Jane Monica
- Department of Food Science, M.O.P Vaishnav College for Women (Autonomous), Chennai, Tamil Nadu, India
| | - S. Priyadarshini
- Department of Food Science, M.O.P Vaishnav College for Women (Autonomous), Chennai, Tamil Nadu, India
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Stamm B, Yu M, Adrissi J, Brooker SM, Hac NE, Priyadarshini S, Dixit K. Clinical Problem-Solving: Lower Extremity Weakness & Paresthesia in an Immunocompromised Patient With a Complex Cancer History. Neurohospitalist 2022; 12:183-187. [PMID: 34950411 PMCID: PMC8689523 DOI: 10.1177/19418744211017396] [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: 01/03/2023] Open
Abstract
We present a case of new onset bilateral lower extremity weakness, paresthesia, urinary retention and bowel incontinence in a 51-year-old man. He had a complicated history of acute myelogenous leukemia with known central nervous system (CNS) and leptomeningeal involvement status post allogenic stem cell transplant complicated by chronic graft versus host disease (GVHD). We review the differential diagnosis as the physical exam and diagnostic results evolved. We also provide a review of the relevant literature supporting our favored diagnosis, as well as other competing diagnoses in this complicated case. The ultimate differential diagnosis included viral myelitis, treatment-related myelopathies, and CNS GVHD. The case provides a sobering reminder that even with an appropriate diagnostic workup, some cases remain refractory to therapeutic efforts. It also underscores the importance of a sensitive neurologic exam, given the significant clinico-radiological delay, and reviews the complex differential diagnosis for myelopathy.
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Affiliation(s)
- Brian Stamm
- Department of Neurology, Northwestern University, Chicago, IL, USA,Brian Stamm, Department of Neurology, Northwestern University, 251 E Huron St, Chicago, IL 60611, USA.
| | - Margaret Yu
- Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Jennifer Adrissi
- Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Sarah M. Brooker
- Department of Neurology, Northwestern University, Chicago, IL, USA
| | | | | | - Karan Dixit
- Department of Neurology, Northwestern University, Chicago, IL, USA
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Gopinath V, Kamath SM, Priyadarshini S, Chik Z, Alarfaj AA, Hirad AH. Multifunctional applications of natural polysaccharide starch and cellulose: An update on recent advances. Biomed Pharmacother 2021; 146:112492. [PMID: 34906768 DOI: 10.1016/j.biopha.2021.112492] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [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: 07/25/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
The emergence of clinical complications and therapeutic challenges for treating various diseases necessitate the discovery of novel restorative functional materials. Polymer-based drug delivery systems have been extensively reported in the last two decades. Recently, there has been an increasing interest in the progression of natural biopolymers based controlled therapeutic strategies, especially in drug delivery and tissue engineering applications. However, the solubility and functionalisation due to their complex network structure and intramolecular bonding seem challenging. This review explores the current advancement and prospects of the most promising natural polymers such as cellulose, starch and their derivatives-based drug delivery vehicles like hydrogels, films and composites, in combating major ailments such as bone infections, microbial infections, and cancers. In addition, selective drug targeting using metal-drug (MD) and MD-based polymeric missiles have been exciting but challenging for its application in cancer therapeutics. Owing to high biocompatibility of starch and cellulose, these materials have been extensively evaluated in biomedical and pharmaceutical applications. This review presents a detailed impression of the current trends for the construction of biopolymer-based tissue engineering, drug/gene/protein delivery vehicles.
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Affiliation(s)
- V Gopinath
- University of Malaya Centre for Proteomics Research, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - S Manjunath Kamath
- Department of Translational Medicine and Research, SRM Medical College Hospital and Research, SRMIST, Kattankulathur 603203, India.
| | - S Priyadarshini
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Zamri Chik
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Abdullah A Alarfaj
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Abdurahman H Hirad
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
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Priyadarshini S. The case of a 29-year-old woman with headaches and diplopia. Ann Clin Transl Neurol 2021; 8:1569-1570. [PMID: 34148305 PMCID: PMC8283167 DOI: 10.1002/acn3.51361] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 11/21/2022] Open
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Priyadarshini S, Sonsudin F, Mainal A, Yahya R, Gopinath V, Vadivelu J, Alarjani KM, Al Farraj DA, Yehia HM. Phytosynthesis of biohybrid nano-silver anchors enhanced size dependent photocatalytic, antibacterial, anticancer properties and cytocompatibility. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Rathore SK, Pati P, Priyadarshini S, Dwibedi B. Association of G84A and C276T polymorphism in neuronal nitric oxide synthase (nNOS) gene with herpes simplex encephalitis in eastern Indian population. Nitric Oxide 2020; 108:8-11. [PMID: 33347982 DOI: 10.1016/j.niox.2020.12.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/22/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
In this study, a hypothesis that genetic variations in neuronal nitric oxide synthase (nNOS) could influence the susceptibility and outcome of herpes simplex encephalitis was investigated. Polymorphic loci of nNOS gene, G84A and C276T were genotyped in 132 HSE cases (Age 8.2 ± 1.3yr) and 143 in healthy individuals (Age-9.2 ± 1.6yr) of the same ethnic background from Odisha. A significantly increased risk for HSVE was associated with the AG genotype (OR = 1.73, 95%CI = 1.03-2.9, P = 0.03) and AA genotype (OR = 2.96, 95%CI = 1.04-8.4, P = 0.04) of nNOS 84G →A locus. In case of nNOS 276C→T variation, HSVE risk was linked to CT genotype (OR = 1.79, 95%CI = 1.07-3.0, P = 0.03) and TT genotype (OR = 3.6, 95%CI = 1.2-10.8, P = 0.02). Patients with poor outcome either had homo or heterozygous genotype for both SNPs, but separate genotype analysis could not show significance. But combined genotype analysis of both SNPs confirmed that GG + CC was a risk factor for development of poor outcome. (OR = 6.3, CI-1.9-20.7, P = 0.0033). Haplotype analysis of both SNP did show that "at" haplotype was significantly higher and associated with HSVE cases (OR = 2.322,CI: 1.43-3.77, P = 0.00070). The result observed in this study suggested that variation at these loci of nNOS may have decreased its expression and caused low production of NO, which have resulted in risk of HSVE but provided good outcome in these patients.
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Affiliation(s)
- S K Rathore
- ICMR-Regional Medical Research Centre, Bhubneswar, India; School of Biotechnology, KIIT University, Bhubaneswar, India
| | - P Pati
- ICMR-Regional Medical Research Centre, Bhubneswar, India; School of Biotechnology, KIIT University, Bhubaneswar, India
| | | | - B Dwibedi
- ICMR-Regional Medical Research Centre, Bhubneswar, India; Dept of Pediatrics, AIIMS, Bhubaneswar, India.
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Yu M, Brooker S, Priyadarshini S. The case of a 61-year-old man with unusual headaches. Ann Clin Transl Neurol 2020; 8:523-524. [PMID: 33338330 PMCID: PMC7886044 DOI: 10.1002/acn3.51179] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A 61‐year‐old man with past medical history significant for prediabetes, hyperlipidemia and high‐grade prostate intraepithelial neoplasia presents with headaches for one month. Imaging of his brain reveals hydrocephalus and spine imaging reveals a cord lesion. These findings are discussed further in the case.
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Affiliation(s)
- Margaret Yu
- Northwestern University, Chicago, Illinois, USA
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Priyadarshini S, Gnanam A, Sasikala B, Elavenil P, Raja Sethupathy Cheeman S, Mrunalini R, Krishna Kumar Raja VB. Evaluation of prolotherapy in comparison with occlusal splints in treating internal derangement of the temporomandibular joint - A randomized controlled trial. J Craniomaxillofac Surg 2020; 49:24-28. [PMID: 33279397 DOI: 10.1016/j.jcms.2020.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 02/12/2020] [Revised: 09/23/2020] [Accepted: 11/07/2020] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The aim of this study was to compare the efficacy of dextrose prolotherapy with that of occlusal splints in treating internal derangement of the temporomandibular joint. PATIENTS AND METHODS A total of 34 patients with temporomandibular joint internal derangement classed as Wilkes stages II or III were recruited for the study, and were randomly divided into study and control groups with 17 patients each. The patients in these control and study groups were treated with splints and prolotherapy, respectively. Outcome parameters, such as pain, mouth opening, clicking and deviation, were assessed using the Helkimo clinical dysfunction index for a review period of 1 year. RESULTS Nine patients in the study group had complete absence of pain, compared with only one patient in the control group. The results showed that patients who received prolotherapy demonstrated improvement in pain (p < 0.001), mouth opening (p = 0.032), and clicking (p < 0.001), but no significant difference in deviation was observed between the groups after 1 year (p = 0.862). CONCLUSION Prolotherapy was found to be superior in providing long-term clinical relief, with reduction in pain and clicking along with improved mouth opening.
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Affiliation(s)
- S Priyadarshini
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
| | - A Gnanam
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
| | - B Sasikala
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India.
| | - P Elavenil
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
| | - S Raja Sethupathy Cheeman
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
| | - R Mrunalini
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
| | - V B Krishna Kumar Raja
- Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, 600089, Tamil Nadu, India
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Priyadarshini S, Mainal A, Sonsudin F, Yahya R, Alyousef AA, Mohammed A. Biosynthesis of TiO2 nanoparticles and their superior antibacterial effect against human nosocomial bacterial pathogens. Res Chem Intermed 2019. [DOI: 10.1007/s11164-019-03857-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Priyadarshini S, Guru PS, DS R, Dash S. Cr(VI) Oxidation of Cholesterol—A Kinetic Study Using N-Cetylpicolinium Dichromates, A Class of Novel Phase Transfer Oxidants. Kinet Catal 2019. [DOI: 10.1134/s0023158419020083] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gopinath V, Priyadarshini S, MubarakAli D, Loke MF, Thajuddin N, Alharbi NS, Yadavalli T, Alagiri M, Vadivelu J. Anti-Helicobacter pylori, cytotoxicity and catalytic activity of biosynthesized gold nanoparticles: Multifaceted application. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.02.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Gopinath V, Priyadarshini S, Loke MF, Arunkumar J, Marsili E, MubarakAli D, Velusamy P, Vadivelu J. Biogenic synthesis, characterization of antibacterial silver nanoparticles and its cell cytotoxicity. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2015.11.011] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Affiliation(s)
- P. J. Amal Joseph
- Department
of Chemistry, St. Albert’s College, Ernakulam, Kerala 682018, India
| | - S. Priyadarshini
- Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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Lagisetty PA, Priyadarshini S, Terrell S, Hamati M, Landgraf J, Chopra V, Heisler M. Culturally Targeted Strategies for Diabetes Prevention in Minority Population. Diabetes Educ 2017; 43:54-77. [PMID: 28118127 PMCID: PMC5408505 DOI: 10.1177/0145721716683811] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Purpose The purpose of this study is to (a) assess the effectiveness of culturally tailored diabetes prevention interventions in minority populations and (b) develop a novel framework to characterize 4 key domains of culturally tailored interventions. Prevention strategies specifically tailored to the culture of ethnic minority patients may help reduce the incidence of diabetes. Methods We searched PubMed, EMBASE, and CINAHL for English-language, randomized controlled trials (RCTs) or quasi-experimental (QE) trials testing culturally tailored interventions to prevent diabetes in minority populations. Two reviewers independently extracted data and assessed risk of bias. Inductive thematic analysis was used to develop a framework with 4 domains (FiLLM: Facilitating [ie, delivering] Interventions Through Language, Location, and Message). The framework was used to assess the overall effectiveness of culturally tailored interventions. Results Thirty-four trials met eligibility criteria. Twelve studies were RCTs, and 22 were QE trials. Twenty-five out of 34 studies (74%) that used cultural tailoring demonstrated significantly improved A1C, fasting glucose, and/or weight loss. Of the 25 successful interventions, 21 (84%) incorporated at least 3 culturally targeted domains. Seven studies used all 4 domains and were all successful. The least utilized domain was delivery (4/34) of the intervention's key educational message. Conclusions Culturally tailoring interventions across the 4 domains of facilitators, language, location, and messaging can be effective in improving risk factors for progression to diabetes among ethnic minority groups. Future studies should evaluate how specific tailoring approaches work compared to usual care as well as comparative effectiveness of each tailoring domain.
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Affiliation(s)
- Pooja A Lagisetty
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
- VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan (Dr Lagisetty, Dr Heisler)
| | - Shubadra Priyadarshini
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Stephanie Terrell
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Mary Hamati
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Jessica Landgraf
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Vineet Chopra
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
| | - Michele Heisler
- Department of General Internal Medicine, University of Michigan, Ann Arbor, Michigan (Dr Lagisetty, Ms Priyadarshini, Ms Terrell, Ms Hamati, Ms Landgraf, Dr Chopra, Dr Heisler)
- VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan (Dr Lagisetty, Dr Heisler)
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Gopinath V, Priyadarshini S, Al-Maleki AR, Alagiri M, Yahya R, Saravanan S, Vadivelu J. In vitro toxicity, apoptosis and antimicrobial effects of phyto-mediated copper oxide nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra13871c] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, copper oxide nanoparticles (CuONPs) are proposed for widespread use in emerging biomedical applications.
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Affiliation(s)
- V. Gopinath
- Department of Medical Microbiology
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - S. Priyadarshini
- Department of Medical Microbiology
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - A. R. Al-Maleki
- Department of Medical Microbiology
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
| | - M. Alagiri
- Center for Material Science and Nanodevices
- Department of Physics and Nanotechnology
- SRM University
- India
| | - Rosiyah Yahya
- Department of Chemistry
- University of Malaya
- Kuala Lumpur
- Malaysia
| | - S. Saravanan
- Department of Physiology and Pathophysiology
- St-Boniface Hospital Albrechtsen Research Centre
- University of Manitoba
- Winnipeg
- Canada
| | - Jamuna Vadivelu
- Department of Medical Microbiology
- Faculty of Medicine
- University of Malaya
- Kuala Lumpur – 50603
- Malaysia
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Vellingiri B, Kathanan S, Subramaniam M, Shanmugam S, Meyyazhagan A, Balasubramanian B, Shanawaz D, Priyadarshini S, Keshavarao S. P206: A case control study of cytogenetic and genotypic alterations in Rett syndrome (RTT) male patients. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50338-0] [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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Priyadarshini S, Amal Joseph P, Kantam ML, Sreedhar B. Copper MOF: scope and limitation in catalytic hydroxylation and nitration of aryl halides. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.102] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Priyadarshini S, Gopinath V, Meera Priyadharsshini N, MubarakAli D, Velusamy P. Synthesis of anisotropic silver nanoparticles using novel strain, Bacillus flexus and its biomedical application. Colloids Surf B Biointerfaces 2013; 102:232-7. [DOI: 10.1016/j.colsurfb.2012.08.018] [Citation(s) in RCA: 230] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 08/13/2012] [Indexed: 11/28/2022]
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Priyadarshini S, Joseph PJA, Kantam ML. Copper catalyzed cross-coupling reactions of carboxylic acids: an expedient route to amides, 5-substituted γ-lactams and α-acyloxy esters. RSC Adv 2013. [DOI: 10.1039/c3ra41000e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Gopinath V, MubarakAli D, Priyadarshini S, Priyadharsshini NM, Thajuddin N, Velusamy P. Biosynthesis of silver nanoparticles from Tribulus terrestris and its antimicrobial activity: A novel biological approach. Colloids Surf B Biointerfaces 2012; 96:69-74. [DOI: 10.1016/j.colsurfb.2012.03.023] [Citation(s) in RCA: 355] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 03/30/2012] [Indexed: 11/16/2022]
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Amal Joseph P, Priyadarshini S, Lakshmi Kantam M, Maheswaran H. Copper catalyzed ipso-nitration of iodoarenes, bromoarenes and heterocyclic haloarenes under ligand-free conditions. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.056] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [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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Amal Joseph PJ, Priyadarshini S, Lakshmi Kantam M, Maheswaran H. Sulfonic acid resin and copper salts: a novel heterogeneous catalytic system for direct hydroxylation of haloarenes. Catal Sci Technol 2011. [DOI: 10.1039/c0cy00090f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Amal Joseph PJ, Priyadarshini S, Lakshmi Kantam M, Maheswaran H. Sulfonic acid containing cation-exchanger resin “INDION-770” and copper(i) salts: a novel reusable catalyst for N-arylation of NH-heterocycles with haloarenes. Catal Sci Technol 2011. [DOI: 10.1039/c0cy00074d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Maheswaran H, Joseph PA, Prasanth KL, Priyadarshini S, Satyanarayana P, Likhar PR, Kantam ML. Investigations of enantioreversal in both direct and directed enantioselective aldol reactions catalyzed by CuCl2[(−)-sparteine] and NiCl2[(−)-sparteine] complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Priyadarshini S, Ashadevi JS, Nagarjun V, Prasanna KS. Increase in Drosophila melanogaster longevity due to rasayana diet: Preliminary results. J Ayurveda Integr Med 2010; 1:114-9. [PMID: 21836798 PMCID: PMC3151378 DOI: 10.4103/0975-9476.65085] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 03/25/2010] [Accepted: 04/05/2010] [Indexed: 11/08/2022] Open
Abstract
We report preliminary results from an ongoing series of experiments on lifespan extension by appropriately modified Ayurvedic rasayanas in animal models. Here data are presented indicating lifespan extensions of 51-55% (up to 70-95% in the pilot experiment) in a standard strain of Drosophila melanogaster (Oregon-K) using a standard rasayana (Ayurvedic herbal formulation for life-extension) suitably adapted for insects. In a first experiment, two groups of 20 unmated D. melanogaster strain Oregon-K kept at 22°C received either rasayana or standard yeast diet; days of death were recorded. Another experiment investigated possible sex differences; equal sized (N = 30) groups of similar males, females, and controls were compared. Life lengths of all controls were in the strain's usual range: in Experiment 1, control life lengths were minimum 40 to maximum 53 days; experimental group figures were 81-91 days; groups were completely separated, experimental group minimum life length being 28 days more than control group maximum life length, i.e., about 2.5 full distribution widths - a sign test for the null hypothesis yields p < 2(-20), i.e., 10(-6) as maximum p. Experiment 2 found no differences between life lengths of males and females; but the maximum life length of 30 controls (60 days in males and 66 days in females) was once again far shorter than the minimum life length of the 60 in the two experimental groups, strengthening the findings of Experiment 1. Despite group sizes being relatively small, results are conclusive: the rasayanas in question increase D. melanogaster strain Oregon-K life length. The complexity of the formulation suggests that multiple mechanisms are involved - worth further investigation.
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Priyadarshini S, Ashadevi JS, Nagarjun V, Prasanna KS. Authors' reply. J Ayurveda Integr Med 2010; 1:172-3. [PMID: 21547042 PMCID: PMC3087356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- S. Priyadarshini
- Government Ayurveda Medical College, Mysore, Karnataka, India. E-mail:
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