Vitamin D and COVID papers - top authors and organizations - Dec 2021

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Covid-19 and Vitamin D Deficiency: A Scientometric Assessment of Global Publications during 2020-21

J Young Pharm, 2021; 13(3) Suppl: s89-s94 DOI: 10.5530/jyp.2021.13s.77
   A multifaceted peer reviewed journal in the field of Pharmacy www.jyoungpharm.org | www.phcog.net
Devi Dayal1,J BM Gupta 2, M Surulinathi 3, Pamali Mahasweta Nanda1
1 Postgraduate Institute of Medical Education and Research, Department of Pediatrics, Chandigarh, INDIA.
2 Formerly with CSIR-National Institute of Science, Technology and Development Studies, New Delhi, INDIA.
3 Bharathidasan University, Department of LIS, Tiruchirappalli, Tamil Nadu, INDIA.

Background: Several studies have examined Vitamin D deficiency (VDD) and the effects of vitamin D therapy in patients with coronavirus disease 2019 (Covid-19). However, a bibliometric assessment of research output on VDD in relation to Covid-19 is unavailable.

Materials and Methods: We searched Elsevier's Scopus database for publications on VDD in Covid-19 using a defined search strategy. Data pertaining to the growth of publications, citation metrics, the most active countries, institutions, authors, journals, and the most cited articles, were analyzed using appropriate bibliometric tools. Mapping of keywords was done to identify the research trends.

Results: Of 435 global publications on VDD in Covid-19, 187 (42.9%) were original articles. The total and average citations per paper (CPP) were 5664 and 13.0, respectively.
Eighty-eight (20.2%) publications were funded; the National Institute of Health, USA, was the leading funding agency (n=18).
Seventy-four countries participated in research on this theme; the USA and Italy with 18.3% and 16.5% led in productivity, whereas Ireland and the USA were the most impactful.
The most dominant research topic was "

• Risk Factors" with 29.6% share, followed by
• "Epidemiology" (27.3%),
• "Complications" (26.4%),
• "Clinical studies" (24.8%), and
• "Pathophysiology" (17.2%),
• only 14.0% studies were on "Treatment".

The research patient populations were "Adults", "Aged," and "Middle-Aged," with 24.1%, 21.6%, and 17.7% share, respectively; only 6.4% studies involved children.
The organizations and authors numbered 254 and 383, respectively; Trinity College, Dublin, Ireland, and Harvard Medical School, USA, were the most productive, whereas St. James's Hospital, Ireland, and University Hospital Brigham, UK were the most impactful.
Belgium's Delanghe and Ireland's Kenny were the top productive authors, and
Grant (USA) and Laird (Ireland) were the most influential.
Journal of Medical Virology and Endocrine lead productivity while
Aging Clinical and Experimental Research and Diabetes and Metabolic Syndrome: Clinical Research and Review lead in impact.

Conclusion: The research on VDD in relation to Covid-19 has primarily been conducted in high-income countries, with the USA, Italy, and UK accounting for almost 50% of total publication output. The research gaps appear to be treatment- related aspects and VDD in children with Covid-19. Our assessment of the current status of research on VDD in Covid-19 may help the research community and policy-makers to prioritize research needs in this field.
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REFERENCES

1. Kumar R, Bharti N, Kumar S, Prakash G. Multidimensional impact of Covid-19 pandemic in India-Challenges and future direction. J Family Med Prim Care. 2020;9(12):5892-5. doi: 10.4103/jfmpc.jfmpc_1625_20, PMID 33681014.
2. Dayal D, Gupta S, Raithatha D, Jayashree M. Missing during Covid-19 lockdown: children with onset of type 1 diabetes. Acta Paediatr. 2020;109(10):2144-6. doi: 10.1111/apa.15443, PMID 32575149.
3. Dayal D. We urgently need guidelines for managing Covid-19 in children with comorbidities. Acta Paediatr. 2020;109(7):1497-8. doi: 10.1111/apa.15304, PMID 32279351.
4. Dayal D, Yadav A. Covid-19: Considerations for children and adolescents with diabetes. J Diabetol. 2020;11(3):126-30. doi: 10.4103/J0D.J0D_40_20.
5. Park SC, Won SY, Kim NH, Choi H, Youk TM, Lee HJ, Jeon HH. Risk factors for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections: a nationwide population-based study. Ann Transl Med. 2021 ;9(3):211. doi: 10.21037/atm-20-5958, PMID 33708838.
6. Pinarlik F, Geng Z, Kapmaz M, Tekin S, Ergonul 0. Risk groups for SARS-CoV-2 infection among healthcare workers: community versus hospital transmission. Infect Dis Rep. 2021;13(3):724-9. doi: 10.3390/idr13030067, PMID 34449648.
7. Dayal D, Gupta S. Connecting BCG vaccination and Covid-19: additional data. MedRxiv. 2020. doi: 10.1101/2020.04.07.20053272 [preprint].
8. Basak P Sachdeva N, Dayal D. Can BCG vaccine protect against Covid-19 via trained immunity and tolerogenesis? BioEssays. 2021;43(3):e2000200. doi: 10.1002/bies.202000200, PMID 33169410.
9. Dayal D. Possible role of vitamin D supplementation in coronavirus disease 2019. Int J Sci Rep. 2020;6(9):376-8. doi: 10.18203/issn.2454-2156.IntJSci- Rep20203554.
10. Crafa A, Cannarella R, Condorelli RA, Mongioi LM, Barbagallo F, Aversa A, La Vignera S, Calogero AE. Influence of 25-hydroxy-cholecalciferol levels on SARS- CoV-2 infection and Covid-19 severity: A systematic review and meta-analysis. EClinicalmedicine. 2021;37:100967 doi: 10.1016/j.eclinm.2021.100967.
11. Kazemi A, Mohammadi V, Aghababaee SK, Golzarand M, Clark CCT, Babajafari S. Association of vitamin D status with SARS-CoV-2 infection or Covid-19 severity: A systematic review and meta-analysis. Adv Nutr. 2021 Mar 5:nmab012. doi: 10.1093/advances/nmab012 [Epub ahead of print]. PMID 33751020.
12. Reis BZ, Fernandes AL, Sales LP Santos MD, Dos Santos CC, Pinto AJ, et al. Influence of vitamin D status on hospital length of stay and prognosis in hospitalized patients with moderate to severe Covid-19: a multicenter prospective cohort study. Am J Clin Nutr. 2021;114(2):598-604. doi: 10.1093/ajcn/nqab151, PMID 34020451.
13. Cooper ID. Bibliometrics basics. J Med Libr Assoc. 2015;103(4):217-8. doi: 10.3163/1536-5050.103.4.013, PMID 26512226.
14. Dayal D, Gupta BM. Pediatric hyperthyroidism research: A scientometric assessment of global publications during 1990-2019. Thyroid Res Pract. 2020;17(3):134-40. doi: 10.4103/trp.trp_67_20.
15. Moran-Marinos C, Toro-Huamanchumo CJ, Pacheco-Mendoza J. Bibliometric profile and collaborative networks in scientific research on systemic lupus erythematosus in Latin America, 1982-2018. Reumatol Clin (Engl Ed). 2021;17(7):404-7. doi: 10.1016/j.reumae.2020.01.004, PMID 34301384.
16. Gupta B, Dhawan S, Mueen Ahmed K, Mamdapur GM. Global Research on Covid-19 Disease: A Scientific Assessment of Publications during 2020-21. IJMEDPH. 2021;11(2):76-84. doi: 10.5530/ijmedph.2021.2.14.
17. 17 Klingelhofer D, Braun M, Bruggmann D, Groneberg DA. The Pandemic Year 2020: World Map of Coronavirus Research. J Med Internet Res. 2021 Jul 8;23(9):e30692. doi: 10.2196/30692 [Epub ahead of print]. PMID 34346891.
18. Gupta R, Gupta BM, Baidwani K, Kaur J. A Scientometric assessment of Indian publications on vitamin D deficiency during 2006-15. J Young Pharm. 2016;8(4):302-9. doi: 10.5530/jyp.2016.4.3.
19. Bruggmann D, Alafi A, Jaque J, Klingelhofer D, Bendels MH, 0hlendorf D, Quarcoo D, Louwen F, Ingles SA, Wanke EM, Groneberg DA. World-wide research architecture of vitamin D research: density-equalizing mapping studies and socio-economic analysis. Nutr J. 2018;17(1):3. doi: 10.1186/s12937-018-0313-6, PMID 29306332.
20. Yang A, Lv Q, Chen F, Wang D, Liu Y, Shi W. Identification of recent trends in research on vitamin D: A quantitative and co-word analysis. Med Sci Monit. 2019;25:643-55. doi: 10.12659/MSM.913026, PMID 30668558.
21. Gupta BM, Dayal D. Pediatric type 1 diabetes research in the 21st century: a scientometric review. Pediatr Endocrinol Diabetes Metab. 2020;26(3):132-9. doi: 10.5114/pedm.2020.98165, PMID 32901470.
22. Dayal D, Gupta BM, Gupta S. Quantitative and qualitative assessment of Indian research yield in type 1 diabetes during 1996-2019. J Diabetol. 2021;12(1):28-35. doi:10.4103/jod.jod_46_20.
23. Gupta BM, Pal R, Rohilla L, Dayal D. Bibliometric analysis of diabetes research in relation to the Covid-19 pandemic. J Diabetol. 2021;12(3):350-6.doi:10.4103/JOD.JOD_30_21.
24. Dayal D, Jayaraman D. Vitamin D deficiency: dealing with the current epidemic. In: Singhi S, Mathew J, editors. Current pediatrics practice. 3rd ed. New Delhi, India: Peepee Publishers; 2015. p. 69-75.
25. Vaghari-Tabari M, Mohammadzadeh I, Qujeq D, Majidinia M, Alemi F, Younesi S, Mahmoodpoor A, Maleki M, Yousefi B, Asemi Z. Vitamin D in respiratory viral infections: a key immune modulator? Crit Rev Food Sci Nutr. 2021 Sep 2:1-16. doi: 10.1080/10408398.2021.1972407 [Epub ahead of print]. PMID 34470511.
26. Borkar VV, Devidayal VS, Verma S, Bhalla AK. Low levels of vitamin D in North Indian children with newly diagnosed type 1 diabetes. Pediatr Diabetes. 2010;11(5):345-50. doi: 10.1111/j.1399-5448.2009.00589.x, PMID 19906128.
27. Dayal D, Jayashree M. Vitamin D levels in newly detected Type 2 diabetes. Indian J Endocrinol Metab. 2015;19(2):308. doi: 10.4103/2230-8210.149333, PMID 25729703.
28. Dupuis ML, Pagano MT, Pierdominici M, Ortona E. The role of vitamin D in autoimmune diseases: could sex make the difference? Biol Sex Differ. 2021;12(1):12. doi: 10.1186/s13293-021-00358-3, PMID 33436077.
29. Ponnarmeni S, Kumar Angurana S, Singhi S, Bansal A, Dayal D, Kaur R, Patial A, Verma Attri S. Vitamin D deficiency in critically ill children with sepsis. Paediatr Int Child Health. 2016;36(1):15-21. doi: 10.1179/2046905515Y0000000042, PMID 26120004.
30. Dayal D, Kumar S, Sachdeva N, Kumar R, Singh M, Singhi S. Fall in vitamin D levels during hospitalization in children. Int J Pediatr. 2014;2014:291856. doi: 10.1155/2014/291856.
31. Dayal D, Gupta BM, Gupta A. Thyroid disorders in children and adolescents: systematic mapping of global research over the past three decades. Thyroid Res Pract. 2021;18(1):23-30. doi: 10.4103/trp.trp_5_21.
32. Gupta BM, Mamdapur GM, Gupta S, Rohilla L, Dayal D. Global mucormycosis research: A bibliometric assessment based on Scopus database (1998-2021). J Young Pharm. 2021;13(4).
33. Fradkin JE, Wallace JA, Akolkar B, Rodgers GP Type 1 diabetes--reaping the rewards of a targeted research investment. Diabetes. 2016;65(2):307-13. doi: 10.2337/db15-1030, PMID 26798117.
34. Lakhotia SC. Research fund crunch, real or created, is hitting India's Academia on the Wrong Side. Proc Indian Natl Sci Acad. 2018;98(3):545-7 doi: 10.16943/ ptinsa/2018/49475.
35. Vaudano E. Research collaborations and quality in research: foes or friends? Handb Exp Pharmacol. 2020;257:383-98. doi: 10.1007/164_2019_293, PMID 31628602.
36. Haregu TN, Byrnes A, Singh K, Sathish T, Pasricha N, Wickramasinghe K, et al. A scoping review of non-communicable disease research capacity strengthening initiatives in low and middle-income countries. Glob Health Res Policy. 2019;4:31. doi: 10.1186/s41256-019-0123-1, PMID 31799408.
37. Grant WB, Lahore H, McDonnell SL, Baggerly CA, French CB, Aliano JL, et al. Evidence that vitamin D supplementation could reduce risk of influenza and Covid-19 infections and deaths. Nutrients. 2020;12(4):988. doi: 10.3390/ nu12040988, PMID 32252338.
38. Ludvigsson JF Systematic review of Covid-19 in children shows milder cases and a better prognosis than adults. Acta Paediatr. 2020;109(6):1088-95. doi: 10.1111/apa.15270, PMID 32202343.
39. Panovska-Griffiths J, Kerr CC, Stuart RM, Mistry D, Klein DJ, Viner RM, et al. Determining the optimal strategy for reopening schools, the impact of test and trace interventions, and the risk of occurrence of a second Covid-19 epidemic wave in the UK: a modelling study. Lancet Child Adolesc Health. 2020;4(11):817-27 doi: 10.1016/S2352-4642(20)30250-9, PMID 32758453.
40. Younis NK, Zareef RO, Fakhri G, Bitar F, Eid AH, Arabi M. Covid-19: potential therapeutics for pediatric patients. Pharmacol Rep. 2021 Aug 30. doi: 10.1007/ s43440-021 -00316-1 [Epub ahead of print]. PMID 34458951.
41. Baas J, Schotten M, Plume A, Côté G, Karimi R. Scopus as a curated, high- quality bibliometric data source for academic research in quantitative science studies. Quant Sci Stud. 2020;1(1):377-86. doi: 10.1162/qss_a_00019.
42. Kokol P Vosner HB. Discrepancies among Scopus, Web of Science, and PubMed coverage of funding information in medical journal articles. J Med Libr Assoc. 2018;106(1):81-6. doi: 10.5195/jmla.2018.181, PMID 29339937.

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