scholarly journals Association between Micronutrients (Vitamin A, D, Iron) and Schistosome-Specific Cytokine Responses in Zimbabweans Exposed toSchistosoma haematobium

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Liam Reilly ◽  
Norman Nausch ◽  
Nicholas Midzi ◽  
Takafira Mduluza ◽  
Francisca Mutapi
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Immune Responses ◽  
Retinol Binding Protein ◽  
C Reactive Protein ◽  
Schistosome Infection ◽  
Reactive Protein ◽  
Normal Ranges ◽  
Ifn Γ ◽  
The Relationship

Micronutrients play an important role in the development of effective immune responses. This study characterised a populations exposed to schistosome infections in terms of the relationship between micronutrients and immune responses. Levels of retinol binding protein (RBP; vitamin A marker), vitamin D, ferritin and soluble transferrin receptor (sTfR), and C reactive protein (CRP) were related to levels of schistosome specific cytokines (IFN-γ, IL-4/5/10) in 40 Zimbabweans (7–54 years) exposed toSchistosoma haematobiuminfection. 67.2% of the participants were deficient in vitamin D. RBP levels were within normal ranges but declined with age. The two indicators of iron levels suggested that although levels of stored iron were within normal levels (normal ferritin levels), levels of functional iron (sTfR levels) were reduced in 28.6% of the population. Schistosome infection alone was not associated with levels of any of the micronutrients, but altered the relationship between parasite-specific IL-4 and IL-5 and levels of ferritin and sTfR.

scholarly journals The Relationship between Vitamin D and Coronary Artery Ectasia in Subjects with a Normal C-Reactive Protein Level

2017 ◽  
Vol 47 (2) ◽  
pp. 231 ◽  
Author(s):  
Goksel Cagirci ◽  
Selcuk Kucukseymen ◽  
Isa Oner Yuksel ◽  
Nermin Bayar ◽  
Erkan Koklu ◽  
...  
Keyword(s):  
Vitamin D ◽  
Coronary Artery ◽  
Protein Level ◽  
Coronary Artery Ectasia ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
The Relationship

scholarly journals Retinol-binding protein 4 (RBP4) and high sensitivity C-reactive protein (hs-CRP) levels in patients with diminished ovarian reserve (DOR): a cross-sectional study

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Wen Zou ◽  
Zehao Wang ◽  
Jing Xia ◽  
Jing Yang
Keyword(s):  
Oxidative Stress ◽  
Vitamin A ◽  
Ovarian Reserve ◽  
High Sensitivity ◽  
Diminished Ovarian Reserve ◽  
Retinol Binding Protein ◽  
C Reactive Protein ◽  
Retinol Binding Protein 4 ◽  
Reactive Protein ◽  
Hs Crp

Abstract Background Antioxidant/oxidant imbalance has been reported to be related to diminished ovarian reserve (DOR). Vitamin A (retinol), a kind of antioxidant, plays a role in restoring ovarian oxidative damage, while C-reactive protein (CRP) is the classical marker of oxidative stress and has recently been identified as an independent variable that is associated with low anti-Mullerian hormone (AMH) levels in young women with DOR. Additionally, retinol binding protein 4 (RBP4) can be considered a substitute for retinol in healthy, nonobese women. The study aim was to determine the relationship between serum RBP4, high sensitivity C-reactive protein (hs-CRP) concentrations and ovarian reserve in nonobese DOR patients. Methods This study included 24 DOR women and 48 normal ovarian reserve (NOR) women from the reproductive medical center of Renmin Hospital of Wuhan University. The serum RBP4 and high-sensitivity CRP (hs-CRP) levels were measured with ELISA kits. Results RBP4 levels (20,648.36 ± 5475.16 ng/ml vs 23,986.48 ± 5995.64 ng/ml, p = 0.025) were decreased, and hs-CRP levels (695.08 ± 1090.19 ng/ml vs 364.32 ± 786.29 ng/ml, p = 0.012) were increased in the DOR group. Serum RBP4 was positively related to AMH (Pearson r = 0.518, p = 0.000), while hs-CRP was negatively correlated with AMH (Spearman r = − 0.345, p = 0.005). after adjustments were made for the covariables, multiple line regression analysis showed that positive association between RBP4 and AMH still existed (β = 0.450, p < 0.001). Conclusion Decreased serum RBP4 levels and increased serum hs-CRP were observed in DOR patients in our study, and the strong correlation between RBP4 and AMH supports the notion that oxidative stress plays a role in DOR, and that appropriate levels of antioxidant vitamin A may be protective against ovarian reserve dysfunction.

scholarly journals Vitamin D status affects the relationship between lipid profile and high-sensitivity C-reactive protein

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Dan Jin ◽  
Dao-Min Zhu ◽  
Hong-Lin Hu ◽  
Meng-Nan Yao ◽  
Wan-Jun Yin ◽  
...  
Keyword(s):  
Vitamin D ◽  
Lipid Profile ◽  
High Sensitivity ◽  
Vitamin D Status ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
The Relationship

scholarly journals Rapid diagnostic testing platform for iron and vitamin A deficiency

2017 ◽  
Vol 114 (51) ◽  
pp. 13513-13518 ◽  
Author(s):  
Zhengda Lu ◽  
Dakota O’Dell ◽  
Balaji Srinivasan ◽  
Elizabeth Rey ◽  
Ruisheng Wang ◽  
...  
Keyword(s):  
Vitamin A ◽  
Binding Protein ◽  
Vitamin A Deficiency ◽  
Work Capacity ◽  
Diagnostic Methods ◽  
Retinol Binding Protein ◽  
Micronutrient Deficiencies ◽  
C Reactive Protein ◽  
Laptop Computer ◽  
Reactive Protein

Micronutrient deficiencies such as those of vitamin A and iron affect a third of the world’s population with consequences such as night blindness, higher child mortality, anemia, poor pregnancy outcomes, and reduced work capacity. Many efforts to prevent or treat these deficiencies are hampered by the lack of adequate, accessible, and affordable diagnostic methods that can enable better targeting of interventions. In this work, we demonstrate a rapid diagnostic test and mobile enabled platform for simultaneously quantifying iron (ferritin), vitamin A (retinol-binding protein), and inflammation (C-reactive protein) status. Our approach, enabled by combining multiple florescent markers and immunoassay approaches on a single test, allows us to provide accurate quantification in 15 min even though the physiological range of the markers of interest varies over five orders of magnitude. We report sensitivities of 88%, 100%, and 80% and specificities of 97%, 100%, and 97% for iron deficiency (ferritin <15 ng/mL or 32 pmol/L), vitamin A deficiency (retinol-binding protein <14.7 μg/mL or 0.70 μmol/L) and inflammation status (C-reactive protein >3.0 μg/mL or 120 nmol/L), respectively. This technology is suitable for point-of-care use in both resource-rich and resource-limited settings and can be read either by a standard laptop computer or through our previously developed NutriPhone technology. If implemented as either a population-level screening or clinical diagnostic tool, we believe this platform can transform nutritional status assessment and monitoring globally.

scholarly journals Vitamin A and systemic inflammation as protective factors in multiple sclerosis

2013 ◽  
Vol 19 (8) ◽  
pp. 1046-1051 ◽  
Author(s):  
Jonatan Salzer ◽  
Göran Hallmans ◽  
Maria Nyström ◽  
Hans Stenlund ◽  
Göran Wadell ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Vitamin A ◽  
Surrogate Marker ◽  
High Sensitivity ◽  
Retinol Binding Protein ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Young Subjects ◽  
Hs Crp

Background: Vitamin A is important for the immune system, and might suppress inflammatory activity in multiple sclerosis (MS). Objectives: We aimed to examine if vitamin A levels were associated with MS risk in samples collected prospectively and during gestation. Methods: We measured Retinol Binding Protein (RBP – a surrogate marker for vitamin A) and high-sensitivity C-reactive protein (hs-CRP) levels, in (1) prospectively collected biobank blood samples from MS cases and controls, and (2) gestational samples where the offspring had later developed MS, and gestational control samples. The risk of MS was calculated using matched multivariable logistic regression adjusted for confounders. Results: In prospective samples, RBP levels within the second quintile (vs. the first) were associated with a lower MS risk (OR = 0.38, 95% CI 0.19–0.74). No effect on MS risk in the offspring by gestational RBP levels was found. In young subjects hs-CRP levels ≥10 mg/l in prospective samples were associated with a lower MS risk (OR = 0.36, 95% CI 0.14–0.95). Conclusions: Our results suggest that sub-optimal vitamin A levels may be associated with MS risk. The association between hs-CRP levels and MS risk in young subjects may support the role of the hygiene hypothesis in MS aetiology.

scholarly journals Retinol-binding protein 4 (RBP4) and high sensitivity C-reactive protein (hs-CRP) levels in patients with diminished ovarian reserve (DOR): a cross-sectional study

2020 ◽  
Author(s):  
Wen Zou ◽  
Zehao Wang ◽  
Jing Xia ◽  
Jing Yang
Keyword(s):  
Oxidative Stress ◽  
Vitamin A ◽  
Ovarian Reserve ◽  
High Sensitivity ◽  
Diminished Ovarian Reserve ◽  
Retinol Binding Protein ◽  
C Reactive Protein ◽  
Retinol Binding Protein 4 ◽  
Reactive Protein ◽  
Hs Crp

Abstract Background: Antioxidant/oxidant imbalance has been reported to be related to diminished ovarian reserve (DOR). Vitamin A (retinol), a kind of antioxidant, plays a role in restoring ovarian oxidative damage, while C-reactive protein (CRP) is the classical marker of oxidative stress and has recently been identified as an independent variable that is associated with low anti-Mullerian hormone (AMH) levels in young women with DOR. Additionally, retinol binding protein 4 (RBP4) can be considered a substitute for retinol in healthy, nonobese women. The study aim was to determine the relationship between serum RBP4, high sensitivity C-reactive protein (hs-CRP) concentrations and ovarian reserve in nonobese DOR patients.Methods: This study included 24 DOR women and 48 normal ovarian reserve (NOR) women from the reproductive medical center of Renmin Hospital of Wuhan University. The serum RBP4 and high-sensitivity CRP (hs-CRP) levels were measured with ELISA kits.Results: RBP4 levels (20,648.36 ± 5475.16 ng/ml vs 23,986.48 ± 5995.64 ng/ml, p = 0.025) were decreased, and hs-CRP levels (695.08 ± 1090.19 ng/ml vs 364.32 ± 786.29 ng/ml, p = 0.012) were increased in the DOR group. Serum RBP4 was positively related to AMH (Pearson r = 0.518, p = 0.000), while hs-CRP was negatively correlated with AMH (Spearman r = -0.345, p = 0.005). after adjustments were made for the covariables, multiple line regression analysis showed that positive association between RBP4 and AMH still existed (β = 0.450, p ˂ 0.001).Conclusion: Decreased serum RBP4 levels and increased serum hs-CRP were observed in DOR patients in our study, and the strong correlation between RBP4 and AMH supports the notion that oxidative stress plays a role in DOR, and that appropriate levels of antioxidant vitamin A may be protective against ovarian reserve dysfunction.

scholarly journals Maternal and cord blood parameters are associated with placental and newborn outcomes in indigenous mothers: A case study in the MINDI cohort

2021 ◽  
Vol 52 (3) ◽  
pp. e2054600
Author(s):  
Doris González-Fernández ◽  
Yining An ◽  
Hugues Plourde ◽  
Emérita Del Carmen Pons ◽  
Odalis Teresa Sinisterra ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Cord Blood ◽  
Plasma Volume ◽  
Head Circumference ◽  
Placental Weight ◽  
Nutrient Deficiencies ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Cell Counts

Background: Multiple infections, nutrient deficiencies and inflammation (MINDI) occur in indigenous communities, but their associations with perinatal outcomes have not been described. Objective: To assess maternal and cord blood micronutrient and inflammation status in peripartum mothers from the Ngäbe-Buglé comarca in Panama, and their associations with placental and infant outcomes. Methods: In 34 mother-newborn dyads, placental weight and diameter were measured, and maternal and cord blood were processed for complete cell counts, serum C-reactive protein, ferritin, serum transferrin receptor (sTfR), vitamins A and D. Blood volumes were calculated using Nadler’s formula. Results: Mothers had low plasma volume (<2.8 L, 96%), vitamin A (52.9%), vitamin D (29.4%), iron (58.8%) and hemoglobin (23.5%), but high hematocrit (>40%, 17.6%) and inflammation (C-reactive protein >8.1 mg/L, 85.3%). Birthweights were normal, but the low placental weight (35.3%), low head circumference Z-scores (17.6%), and low cord hemoglobin (5.9%), iron (79.4%), vitamin A (14.7%) and vitamin D (82.3%) were identified. Maternal and cord vitamin D were highly correlated. Higher maternal plasma volume was associated with heavier placentae (β= 0.57), and higher cord D (β= 0.43) and eosinophils (β= 0.43) with larger placentae. Hemoconcentration (higher cord hematocrit) was associated with lower newborn weight (β= -0.48) and head circumference (β= -0.56). Inflammation [higher maternal neutrophils (β= -0.50), and cord platelets (β= -0.32)] was associated with the lower newborn length and head circumference. Conclusion: Maternal-newborn hemoconcentration, subclinical inflammation and multiple nutrient deficiencies, particularly neonatal vitamin D deficiency, were identified as potential targets for interventions to improve pregnancy outcomes in vulnerable communities.

scholarly journals Retinol-Binding Protein 4 (RBP4) and High Sensitivity C-Reactive Protein (hs-CRP) Levels in Patients with Diminished Ovarian Reserve (DOR): A Cross-Sectional Study

2020 ◽  
Author(s):  
Wen Zou ◽  
Zehao Wang ◽  
Jing Xia ◽  
Jing Yang
Keyword(s):  
Oxidative Stress ◽  
Vitamin A ◽  
Ovarian Reserve ◽  
High Sensitivity ◽  
Diminished Ovarian Reserve ◽  
Retinol Binding Protein ◽  
C Reactive Protein ◽  
Retinol Binding Protein 4 ◽  
Reactive Protein ◽  
Hs Crp

Abstract Background: Antioxidant/oxidant imbalance has been reported to be related to diminished ovarian reserve (DOR). Vitamin A (retinol), a kind of antioxidant, plays a role in restoring ovarian oxidative damage, while C-reactive protein (CRP) is the classical marker of oxidative stress and has recently been identified as an independent variable that is associated with low anti-Mullerian hormone (AMH) levels in young women with DOR. Additionally, retinol binding protein 4 (RBP4) can be considered a substitute for retinol in healthy, nonobese women. The study aim was to determine the relationship between serum RBP4, high sensitivity C-reactive protein (hs-CRP) concentrations and ovarian reserve in nonobese DOR patients.Methods: This study included 24 DOR women and 48 normal ovarian reserve (NOR) women from the reproductive medical center of Renmin Hospital of Wuhan University. The serum RBP4 and high-sensitivity CRP (hs-CRP) levels were measured with ELISA kits.Results: RBP4 levels (20,648.36 ± 5475.16 vs 23,986.48 ± 5995.64, p = 0.025) were decreased, and hs-CRP levels (695.08 ± 1090.19 vs 364.32 ± 786.29, p = 0.012) were increased in the DOR group. Serum RBP4 was positively related to AMH (Pearson r = 0.518, p = 0.000), while hs-CRP was negatively correlated with AMH (Spearman r = -0.345, p = 0.005). after adjustments were made for the covariables, multiple line regression analysis showed that positive association between RBP4 and AMH still existed (β = 0.450, p ˂ 0.001). Conclusion: Decreased serum RBP4 levels and increased serum hs-CRP were observed in DOR patients in our study, and the strong correlation between RBP4 and AMH supports the notion that oxidative stress plays a role in DOR, and that appropriate levels of antioxidant vitamin A may be protective against ovarian reserve dysfunction.

scholarly journals The Relationship between Serum Vitamin D Levels, C-Reactive Protein, and Anxiety Symptoms

2020 ◽  
Vol 17 (4) ◽  
pp. 312-319
Author(s):  
Sun-Young Kim ◽  
Sang-Won Jeon ◽  
Weon-Jeong Lim ◽  
Kang-Seob Oh ◽  
Dong-Won Shin ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Anxiety Symptoms ◽  
C Reactive Protein ◽  
Serum Vitamin D ◽  
Reactive Protein ◽  
Vitamin D Levels ◽  
Korean Adult ◽  
Sufficient Vitamin ◽  
The Relationship

Objective The aim of study is to investigate the relationship between serum vitamin D, c-reactive protein (CRP) levels, and anxiety symptoms.Methods Serum vitamin D and CRP levels of 51,003 Korean adult participants were collected retrospectively. Anxiety symptoms were assessed using the Korean version of Beck Anxiety Inventory. Logistic regression was used to estimate the odds ratio (ORs) of anxiety symptoms by serum vitamin D and CRP levels. The regression was adjusted for covariates, and each model was adjusted mutually for vitamin D and CRP levels.Results Compared with sufficient vitamin D levels (≥20 ng/mL), insufficient (10–19.99 ng/mL) and deficient (<10 ng/mL) vitamin D levels were significantly associated with risk of anxiety symptoms. Also, continuous vitamin D levels were negatively associated with the risk of anxiety symptoms. CRP levels did not affect the relationship between vitamin D levels and risk of anxiety symptoms.Conclusion Insufficient (10–19.99 ng/mL) and deficient (<10 ng/mL) vitamin D levels were significantly associated with risk of anxiety symptoms. After adjusting for CRP levels, the results were not changed, and no evidence of interaction between vitamin D and CRP levels was found. CRP levels did not account for the association between vitamin D levels and risk of anxiety symptoms.

scholarly journals The relationship between serum retinol concentrations and subclinical infection in rural Brazilian children

2018 ◽  
Vol 31 (3) ◽  
pp. 299-310
Author(s):  
Laísla França da Silva TELES ◽  
Adriana de Azevedo PAIVA ◽  
Liania Alves LUZIA ◽  
Flávia Emília Leite de LIMA-FERREIRA ◽  
Cecilia Maria Resende Gonçalves de CARVALHO ◽  
...  
Keyword(s):  
Vitamin A ◽  
High Performance ◽  
Vitamin A Deficiency ◽  
Subclinical Infection ◽  
Rural Settlements ◽  
Serum Retinol ◽  
C Reactive Protein ◽  
Cross Sectional ◽  
Reactive Protein ◽  
The Relationship

ABSTRACT Objective To evaluate the relationship between serum retinol concentrations and subclinical infection in children from rural settlements. Methods A cross-sectional population-based study was carried out in nine rural settlements in the northeastern region of Brazil, involving 118 children aged 6 to 59 months. The relationship between serum retinol and C-Reactive Protein levels, an important marker of infectious and inflammatory processes, was investigated by multiple linear regression, controlling for demographic, socioeconomic and nutritional variables. Serum retinol and C-Reactive Protein were measured, respectively, by High Performance Liquid Chromatography and immunoturbidimetric assay in automated equipment. Results Vitamin A deficiency (retinol <0.70μmol/L) was identified in 9.3% of the children. C-Reactive Protein was the only predictor of retinol concentrations in the final regression model, causing a 0.728μmol/L reduction in retinol concentrations in the studied children (p=0.008). Conclusion Vitamin A deficiency is a problem of mild/moderate severity and measures to control infectious diseases in this population are fundamental to prevent and/or combat this problem.

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