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Jilcott Pitts SB, Johnson NS, Wu Q, Firnhaber GC, Preet Kaur A, Obasohan J. A meta-analysis of studies examining associations between resonance Raman spectroscopy-assessed skin carotenoids and plasma carotenoids among adults and children. Nutr Rev 2021; 80:230-241. [PMID: 33822186 PMCID: PMC8754254 DOI: 10.1093/nutrit/nuab016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/25/2021] [Accepted: 02/23/2021] [Indexed: 12/20/2022] Open
Abstract
CONTEXT No meta-analyses appeared to have been conducted to examine overall correlations between resonance Raman spectroscopy (RRS)-assessed skin carotenoids and plasma/serum carotenoids. OBJECTIVE To review the available literature and quantify the association between RRS-assessed skin carotenoids and plasma/serum carotenoids via a meta-analysis of observational studies. DATA SOURCES To identify relevant publications, we searched the PubMed, Embase, CINAHL, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, ProQuest, and Scopus databases in April 2020 for items combining 3 concepts: Raman spectroscopy, skin, and plasma or serum. DATA EXTRACTION Criteria for inclusion were publication in a peer-reviewed journal between 1990 and 2020, available in English language, and results reported as a baseline Pearson correlation coefficient. In teams of 2, the researchers independently reviewed titles and abstracts of 2212 nonduplicate papers with initial screening yielding 62 papers for full-text review, of which 15 were deemed eligible for inclusion. DATA ANALYSIS A random-effects model in R (version 4.0.0) "meta" package was used to analyze the correlation between RRS-assessed skin and plasma/serum carotenoids. A subgroup analysis was conducted for studies involving adults and children, respectively. CONCLUSIONS The 15 studies included 1155 individuals: 963 adults and 192 children. One study included children and adults. The random-effects model yielded an overall correlation of 0.68 (95%CI, 0.61-0.74; I2 = 74%; P < 0.01). The results were similar when grouped by adults and children. Among 963 adults, the correlation in the random-effects model was 0.69 (95%CI, 0.61-0.75; I2 = 78%; P < 0.01). Among 192 children, the correlation in the random-effects model was 0.66 (95%CI, 0.52- 0.77; I2 = 55%; P = 0.06). Overall, there was a positive, statistically significant correlation between RRS-assessed skin carotenoids and plasma/serum carotenoids in a pooled meta-analysis of 15 studies. SYSTEMATIC REVIEW REGISTRATION PROSPERO (record number 178835).
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Affiliation(s)
- Stephanie B Jilcott Pitts
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
| | - Nevin S Johnson
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
| | - Qiang Wu
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
| | - Gina C Firnhaber
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
| | - Archana Preet Kaur
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
| | - Justice Obasohan
- S.B. Jilcott Pitts, N.S. Johnson, and A.P. Kaur are with the Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA. Q. Wu is with the Department of Biostatistics, East Carolina University, East Carolina Heart Institute, Greenville, North Carolina, USA. G. Cahoon Firnhaber is with the Nurse Anesthesia Program, East Carolina University College of Nursing, Greenville, North Carolina, USA. J. Obasohan is with the National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Bethesda, Maryland, USA
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