Marco Solmi1, Nicola Veronese2, Enzo Manzato2, Giuseppe Sergi2, Angela Favaro1, Paolo Santonastaso1, Christoph U Correll3,4,5,6. 1. Department of Neurosciences, University of Padova, via Giustiniani, Padova, Italy. 2. Department of Medicine- DIMED, University of Padova, Geriatrics Section, via Giustiniani, Padova, Italy. 3. Department of Psychiatry, the Zucker Hillside Hospital, Glen Oaks, New York. 4. Hofstra North Shore LIJ School of Medicine, Hempstead, New York. 5. The Feinstein Institute for Medical Research, Manhasset, New York. 6. Albert Einstein College of Medicine, Bronx, New York.
Abstract
OBJECTIVE: To systematically review and meta-analyze oxidative stress and antioxidant markers in anorexia nervosa (AN). METHODS: Electronic PubMed search from database inception until 12/31/2013. Out of 1062 hits, 29 studies comparing oxidative stress/antioxidant markers between patients with AN and healthy controls (HCs) with a total of 1,729 participants (AN = 895, HCs = 834) were eligible. Data about oxidative stress and antioxidant markers, independent of their source, were extracted. We calculated random effects standardized mean differences (SMDs) as effect size measures for outcomes reported in ≥5 studies; others were summarized descriptively. RESULTS: Compared to HCs, AN patients showed significantly higher apolipoprotein B (ApoB) levels (studies = 7; n = 551; SMD = 0.75; p = .0003, I(2) = 74%), with higher age being associated with higher ApoB (Coefficient: 0.61 ± 0.15, p < .0001), whereas BMI (p = .15) and measurement method (p = .70) did not moderate the results. Serum albumin levels were similar between AN and HCs (studies = 13; n = 509; SMD =-0.19; 95%CI: -0.62 to 0.24; p = .38; I(2) = 81%), with neither age (p = .84) nor BMI (p = .52) being significant moderators. Lower superoxide dismutase levels were reported in 2 studies, while findings for vitamin A and its metabolites were inconclusive. In single studies, patients with AN had significantly higher catalase and nitric oxide (NO) parameter levels (platelet NO, exhaled NO and nitrites), such as lower glutathione and free cysteine levels, compared to HCs. DISCUSSION: AN appears to be associated with some markers of increased oxidative stress. Additional research is needed to discern whether oxidative stress is a potential cause or effect of AN, and whether treatments improving oxidative stress could be useful in AN.
OBJECTIVE: To systematically review and meta-analyze oxidative stress and antioxidant markers in anorexia nervosa (AN). METHODS: Electronic PubMed search from database inception until 12/31/2013. Out of 1062 hits, 29 studies comparing oxidative stress/antioxidant markers between patients with AN and healthy controls (HCs) with a total of 1,729 participants (AN = 895, HCs = 834) were eligible. Data about oxidative stress and antioxidant markers, independent of their source, were extracted. We calculated random effects standardized mean differences (SMDs) as effect size measures for outcomes reported in ≥5 studies; others were summarized descriptively. RESULTS: Compared to HCs, AN patients showed significantly higher apolipoprotein B (ApoB) levels (studies = 7; n = 551; SMD = 0.75; p = .0003, I(2) = 74%), with higher age being associated with higher ApoB (Coefficient: 0.61 ± 0.15, p < .0001), whereas BMI (p = .15) and measurement method (p = .70) did not moderate the results. Serum albumin levels were similar between AN and HCs (studies = 13; n = 509; SMD =-0.19; 95%CI: -0.62 to 0.24; p = .38; I(2) = 81%), with neither age (p = .84) nor BMI (p = .52) being significant moderators. Lower superoxide dismutase levels were reported in 2 studies, while findings for vitamin A and its metabolites were inconclusive. In single studies, patients with AN had significantly higher catalase and nitric oxide (NO) parameter levels (platelet NO, exhaled NO and nitrites), such as lower glutathione and free cysteine levels, compared to HCs. DISCUSSION: AN appears to be associated with some markers of increased oxidative stress. Additional research is needed to discern whether oxidative stress is a potential cause or effect of AN, and whether treatments improving oxidative stress could be useful in AN.
Authors: Anna Svedlund; Cecilia Pettersson; Bojan Tubic; Lars Ellegård; Anders Elfvin; Per Magnusson; Diana Swolin-Eide Journal: J Bone Miner Metab Date: 2022-08-12 Impact factor: 2.976
Authors: Kinga Toboła-Wróbel; Marek Pietryga; Piotr Dydowicz; Marta Napierała; Jacek Brązert; Ewa Florek Journal: Oxid Med Cell Longev Date: 2020-09-15 Impact factor: 6.543