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He L, Cai Y, Du H, Shu M, Zhu C. Adipose stem cell‑derived exosomes promote high glucose-induced wound healing by regulating the TRIM32/STING axis. Arch Dermatol Res 2024; 316:323. [PMID: 38822901 DOI: 10.1007/s00403-024-03065-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 01/16/2024] [Accepted: 04/26/2024] [Indexed: 06/03/2024]
Abstract
Refractory diabetic wounds are still a clinical challenge that can cause persistent inflammation and delayed healing. Exosomes of adipose stem cells (ADSC-exos) are the potential strategy for wound repair; however, underlying mechanisms remain mysterious. In this study, we isolated ADSC-exos and identified their characterization. High glucose (HG) stimulated human umbilical vein endothelial cells (HUVECs) to establish in vitro model. The biological behaviors were analyzed by Transwell, wound healing, and tube formation assays. The underlying mechanisms were analyzed using quantitative real-time PCR, co-immunoprecipitation (Co-IP), IP, and western blot. The results showed that ADSC-exos promoted HG-inhibited cell migration and angiogenesis. In addition, ADSC-exos increased the levels of TRIM32 in HG-treated HUVECs, which promoted the ubiquitination of STING and downregulated STING protein levels. Rescue experiments affirmed that ADSC-exos promoted migration and angiogenesis of HG-treated HUVECs by regulating the TRIM32/STING axis. In conclusion, ADSC-exos increased the levels of TRIM32, which interacted with STING and promoted its ubiquitination, downregulating STING levels, thus promoting migration and angiogenesis of HG-treated HUVECs. The findings suggested that ADSC-exos could promote diabetic wound healing and demonstrated a new mechanism of ADSC-exos.
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Affiliation(s)
- Lin He
- Department of Plastic, Aesthetic and Maxillofacial Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Ying Cai
- Department of Orthopedics, Huanggang Central Hospital of Yangtze University, Huanggang, 438000, P. R. China
| | - Huicong Du
- Department of Plastic, Aesthetic and Maxillofacial Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Maoguo Shu
- Department of Plastic, Aesthetic and Maxillofacial Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Chan Zhu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, Changle West Road, 127#, Xi'an city, Shaanxi Province, 710032, P. R. China.
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Gupta HP, Pandey R, Ravi Ram K. Altered sperm fate in the reproductive tract milieu due to oxidative stress leads to sub-fertility in type 1 diabetes females: A Drosophila-based study. Life Sci 2023; 313:121306. [PMID: 36543282 DOI: 10.1016/j.lfs.2022.121306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
AIMS Female sub-fertility, a prominent complication due to Type 1 diabetes (T1D), is generally attributed to disturbances in menstrual cycles and/or ovarian defects/disorders. T1D women, however, are high in oxidative stress, although the impact of the same on their reproduction and associated events remains unknown. Therefore, we assessed the repercussions of elevated oxidative stress on the sperm fate (storage/utilization) in the reproductive tract milieu of T1D females and their fertility using the Drosophila T1D model (Df[dilp1-5]), which lacks insulin-like peptides and displays reduced female fertility. MAIN METHODS We mated Df[dilp1-5] females to normal males and thereafter examined sperm storage and/or utilization in conjunction with oxidative stress parameters in mated Df[dilp1-5] females at different time points. Also, the impact of antioxidant (Amla or Vitamin C) supplementation on the above oxidative stress parameters in Df[dilp1-5] females and the consequences on their sperm and fertility levels were examined. KEY FINDINGS Df[dilp1-5] females showed elevated oxidative stress parameters and a few of their reproductive tract proteins are oxidatively modified. Also, these females stored significantly fewer sperm and also did not utilize sperm as efficiently as their controls. Surprisingly, amelioration of the oxidative stress in Df[dilp1-5] females' milieu through antioxidant (Amla or vitamin C) supplementation enhanced sperm storage and improved fertility. SIGNIFICANCE Hyperglycemia coupled with elevated oxidative stress within the female reproductive tract environment affects the sperm fate, thereby reducing female fertility in T1D. In addition, these findings suggest that antioxidant supplementation may substantially aid in the mitigation of sub-fertility in T1D females.
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Affiliation(s)
- Himanshu Pawankumar Gupta
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Richa Pandey
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India
| | - Kristipati Ravi Ram
- Embryotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India.
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Hertiš Petek T, Petek T, Močnik M, Marčun Varda N. Systemic Inflammation, Oxidative Stress and Cardiovascular Health in Children and Adolescents: A Systematic Review. Antioxidants (Basel) 2022; 11:894. [PMID: 35624760 PMCID: PMC9137597 DOI: 10.3390/antiox11050894] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/16/2022] [Accepted: 04/24/2022] [Indexed: 12/02/2022] Open
Abstract
Recent studies indicate that cerebrovascular diseases and processes of atherosclerosis originate in the childhood era and are largely influenced by chronic inflammation. Some features of vascular dysfunction in adulthood may even be programmed prenatally via genetic influences and an unfavorable intrauterine milieu. Oxidative stress, defined by an imbalance between the production and generation of reactive oxygen species (ROS) in cells and tissues and the capability of an organism to scavenge these molecules via antioxidant mechanisms, has been linked to adverse cardiovascular health in adults, yet has not been systematically reviewed in the pediatric population. We performed a systematic search as per the PRISMA guidelines in PubMed/Medline and Cochrane Reviews and detected, in total, 1228 potentially eligible pediatric articles on systemic inflammation, oxidative stress, antioxidant use, cardiovascular disease and endothelial dysfunction. The abstracts and full-text manuscripts of these were screened for inclusion and exclusion criteria, and a total of 160 articles were included. The results indicate that systemic inflammation and oxidative stress influence cardiovascular health in many chronic pediatric conditions, including hypertension, obesity, diabetes mellitus types 1 and 2, chronic kidney disease, hyperlipidemia and obstructive sleep apnea. Exercise and diet may diminish ROS formation and enhance the total serum antioxidant capacity. Antioxidant supplementation may, in selected conditions, contribute to the diminution of the oxidative state and improve endothelial function; yet, in many areas, studies provide unsatisfactory results.
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Affiliation(s)
- Tjaša Hertiš Petek
- Department of Paediatrics, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia; (T.H.P.); (M.M.); (N.M.V.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Tadej Petek
- Department of Paediatrics, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia; (T.H.P.); (M.M.); (N.M.V.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Mirjam Močnik
- Department of Paediatrics, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia; (T.H.P.); (M.M.); (N.M.V.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
| | - Nataša Marčun Varda
- Department of Paediatrics, University Medical Centre Maribor, Ljubljanska 5, 2000 Maribor, Slovenia; (T.H.P.); (M.M.); (N.M.V.)
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia
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Kim HW, Li H, Kim HS, Shin SE, Jung WK, Ha KS, Han ET, Hong SH, Choi IW, Firth AL, Bang H, Park WS. The anti-diabetic drug repaglinide induces vasorelaxation via activation of PKA and PKG in aortic smooth muscle. Vascul Pharmacol 2016; 84:38-46. [PMID: 27435474 DOI: 10.1016/j.vph.2016.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 07/06/2016] [Accepted: 07/15/2016] [Indexed: 12/19/2022]
Abstract
We investigated the vasorelaxant effect of repaglinide and its related signaling pathways using phenylephrine (Phe)-induced pre-contracted aortic rings. Repaglinide induced vasorelaxation in a concentration-dependent manner. The repaglinide-induced vasorelaxation was not affected by removal of the endothelium. In addition, application of a nitric oxide synthase inhibitor (L-NAME) and a small-conductance Ca(2+)-activated K(+) (SKCa) channel inhibitor (apamin) did not alter the vasorelaxant effect of repaglinide on endothelium-intact arteries. Pretreatment with an adenylyl cyclase inhibitor (SQ 22536) or a PKA inhibitor (KT 5720) effectively reduced repaglinide-induced vasorelaxation. Also, pretreatment with a guanylyl cyclase inhibitor (ODQ) or a PKG inhibitor (KT 5823) inhibited repaglinide-induced vasorelaxation. However, pretreatment with a voltage-dependent K(+) (Kv) channel inhibitor (4-AP), ATP-sensitive K(+) (KATP) channel inhibitor (glibenclamide), large-conductance Ca(2+)-activated K(+) (BKCa) channel inhibitor (paxilline), or the inwardly rectifying K(+) (Kir) channel inhibitor (Ba(2+)) did not affect the vasorelaxant effect of repaglinide. Furthermore, pretreatment with a Ca(2+) inhibitor (nifedipine) and a sarco-endoplasmic reticulum Ca(2+)-ATPase (SERCA) inhibitor (thapsigargin) did not affect the vasorelaxant effect of repaglinide. The vasorelaxant effect of repaglinide was not affected by elevated glucose (50mM). Based on these results, we conclude that repaglinide induces vasorelaxation via activation of adenylyl cyclase/PKA and guanylyl cyclase/PKG signaling pathways independently of the endothelium, K(+) channels, Ca(2+) channels, and intracellular Ca(2+) ([Ca(2+)]i).
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Affiliation(s)
- Hye Won Kim
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Hongliang Li
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Han Sol Kim
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Sung Eun Shin
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Won-Kyo Jung
- Department of Biomedical Engineering, Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan 608-737, South Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea
| | - Il-Whan Choi
- Department of Microbiology, Inje University College of Medicine, Busan 614-735, South Korea
| | - Amy L Firth
- Department of Pulmonary, Critical Care and Sleep Medicine, University of Southern California, Keck School of Medicine, Los Angeles, CA 90033, USA
| | - Hyoweon Bang
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, South Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon 200-701, South Korea.
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Abstract
AbstractThe endothelium, a thin single sheet of endothelial cells, is a metabolically active layer that coats the inner surface of blood vessels and acts as an interface between the circulating blood and the vessel wall. The endothelium through the secretion of vasodilators and vasoconstrictors serves as a critical mediator of vascular homeostasis. During the development of the vascular system, it regulates cellular adhesion and vessel wall inflammation in addition to maintaining vasculogenesis and angiogenesis. A shift in the functions of the endothelium towards vasoconstriction, proinflammatory and prothrombic states characterise improper functioning of these cells, leading to endothelial dysfunction (ED), implicated in the pathogenesis of many diseases including diabetes. Major mechanisms of ED include the down-regulation of endothelial nitric oxide synthase levels, differential expression of vascular endothelial growth factor, endoplasmic reticulum stress, inflammatory pathways and oxidative stress. ED tends to be the initial event in macrovascular complications such as coronary artery disease, peripheral arterial disease, stroke and microvascular complications such as nephropathy, neuropathy and retinopathy. Numerous strategies have been developed to protect endothelial cells against various stimuli, of which the role of polyphenolic compounds in modulating the differentially regulated pathways and thus maintaining vascular homeostasis has been proven to be beneficial. This review addresses the factors stimulating ED in diabetes and the molecular mechanisms of natural polyphenol antioxidants in maintaining vascular homeostasis.
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Noonan JE, Ward GM, Sarossy M, Man REK, Nguyen TT, Jenkins AJ, Dusting GJ, Lamoureux EL. Retinal neuronal and vascular function in type 1 diabetes adults during glycaemic clamps. Clin Exp Pharmacol Physiol 2016; 43:382-4. [PMID: 26748565 DOI: 10.1111/1440-1681.12540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Jonathan E Noonan
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Glenn M Ward
- Departments of Endocrinology and Diabetes, and Clinical Biochemistry, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Department of Pathology, University of Melbourne, Melbourne, Victoria, Australia
| | - Marc Sarossy
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia.,RMIT University, Melbourne, Victoria, Australia
| | - Ryan E K Man
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Singapore Eye Research Institute and Department of Ophthalmology, National University of Singapore, Singapore City, Singapore
| | - Thanh T Nguyen
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Alicia J Jenkins
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,NHMRC Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia.,Queen's University, Belfast, UK
| | - Gregory J Dusting
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Ecosse L Lamoureux
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Singapore Eye Research Institute and Department of Ophthalmology, National University of Singapore, Singapore City, Singapore.,Duke-NUS Graduate Medical School, Singapore City, Singapore
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Cazeau RM, Huang H, Bauer JA, Hoffman RP. Effect of Vitamins C and E on Endothelial Function in Type 1 Diabetes Mellitus. J Diabetes Res 2016; 2016:3271293. [PMID: 26783536 PMCID: PMC4689966 DOI: 10.1155/2016/3271293] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/14/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/OBJECTIVES Endothelial dysfunction due to hyperglycemia-induced oxidative damage is an important predictor of future cardiovascular risk in patients with type 1 diabetes mellitus (T1DM) and is present in adolescent T1DM. We hypothesized that combined treatment with the antioxidant vitamins C and E might improve endothelial function (EF) and other biochemical risk factors in adolescents with T1DM. SUBJECTS/METHODS Open-label antioxidant supplementation was given for six weeks with endpoint measurements collected at baseline and study completion. Endpoints measured included EF and plasma measurements of biochemical endothelial risk. RESULTS Two males and 7 females were studied. Mean age was 12.9 ± 0.9 yrs; mean T1DM duration was 5.5 ± 2.5 yrs; mean BMI was 22.1 ± 3.8 kg/m(2); and mean hemoglobin A1c was 9.3 ± 1.1%. No differences were found for EF, high sensitivity CRP, total antioxidant capacity, adiponectin, or endothelial progenitor cells (EPCs) between before and after combined vitamin C and E therapy. CONCLUSIONS Our negative study results do not support previous findings of decreased oxidative damage, improved endothelial function, and increased vascular repair capacity with antioxidant therapy. Longer term studies may be needed to determine the effects, if any, of combined antioxidant therapy on EPCs, EF, and markers of micro- and macrovascular complications in T1DM.
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Affiliation(s)
- Rachel-Marie Cazeau
- Section of Endocrinology, Metabolism and Diabetes, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA
- Division of Pediatric Endocrinology, Metabolism and Diabetes, Department of Pediatrics, The Clinical Research Center, The Ohio State University College of Medicine and Public Health, Columbus, OH 43205, USA
- *Rachel-Marie Cazeau:
| | - Hong Huang
- Department of Pediatrics, University of Kentucky, Lexington, KY 40506, USA
| | - John A. Bauer
- Department of Pediatrics, University of Kentucky, Lexington, KY 40506, USA
| | - Robert P. Hoffman
- Section of Endocrinology, Metabolism and Diabetes, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA
- Division of Pediatric Endocrinology, Metabolism and Diabetes, Department of Pediatrics, The Clinical Research Center, The Ohio State University College of Medicine and Public Health, Columbus, OH 43205, USA
- The Research Institute, Nationwide Children's Hospital, Columbus, OH 43205, USA
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Hoffman RP. Hyperglycemic endothelial dysfunction: does it happen and does it matter? J Thorac Dis 2015; 7:1693-5. [PMID: 26623085 DOI: 10.3978/j.issn.2072-1439.2015.10.24] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Robert P Hoffman
- Section of Endocrinology, Department of Pediatrics, The Ohio State University College of Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA
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Chambial S, Dwivedi S, Shukla KK, John PJ, Sharma P. Vitamin C in disease prevention and cure: an overview. Indian J Clin Biochem 2013; 28:314-28. [PMID: 24426232 DOI: 10.1007/s12291-013-0375-3] [Citation(s) in RCA: 209] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Accepted: 08/20/2013] [Indexed: 12/13/2022]
Abstract
The recognition of vitamin C is associated with a history of an unrelenting search for the cause of the ancient haemorrhagic disease scurvy. Isolated in 1928, vitamin C is essential for the development and maintenance of connective tissues. It plays an important role in bone formation, wound healing and the maintenance of healthy gums. Vitamin C plays an important role in a number of metabolic functions including the activation of the B vitamin, folic acid, the conversion of cholesterol to bile acids and the conversion of the amino acid, tryptophan, to the neurotransmitter, serotonin. It is an antioxidant that protects body from free radical damage. It is used as therapeutic agent in many diseases and disorders. Vitamin C protects the immune system, reduces the severity of allergic reactions and helps to fight off infections. However the significance and beneficial effect of vitamin C in respect to human disease such as cancer, atherosclerosis, diabetes, neurodegenerative disease and metal toxicity however remains equivocal. Thus further continuous uninterrupted efforts may open new vistas to understand its significance in disease management.
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Affiliation(s)
- Shailja Chambial
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, 342005 Rajasthan India
| | - Shailendra Dwivedi
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, 342005 Rajasthan India
| | - Kamla Kant Shukla
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, 342005 Rajasthan India
| | - Placheril J John
- Department of Zoology, Centre for Advanced Studies, University of Rajasthan, Jaipur, 302004 India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, 342005 Rajasthan India
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