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Serum Folate

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121. Association between blood folate concentrations and depression in reproductive aged U.S. women, NHANES (2011-2012). (PubMed)

Association between blood folate concentrations and depression in reproductive aged U.S. women, NHANES (2011-2012). Blood folate concentrations have been linked to an increased risk of depression in adults. Depression is particularly pronounced among women; however, the association between folate concentration and depression is not well-examined among women of reproductive age. The purpose of our study was to assess the association between low serum and red blood cell folate concentration (...) and the risk of moderate to severe depression among non-pregnant women of reproductive age in the United States (U.S.).We used data from nationally representative, population-based U.S. National Health and Nutrition Examination Survey (NHANES) (2011-2012) examining non-pregnant women of reproductive age (20-44 years). We compared serum and red blood cell (RBC) folate concentrations between women with and without self-reported depression based on Patient Health Questionnaire-9 (PHQ-9) scores, and examined

2017 Journal of Affective Disorders

122. The association of folate and depression: A meta-analysis. (PubMed)

-analytic procedures were conducted in accordance with PRISMA guidelines. Studies evaluating folate levels in individuals with and without depression via red blood cell folate, serum folate, or dietary intake of folate methods were identified via PsycINFO and PubMed. Random-effects meta-analysis was conducted using Hedge's g, and moderation analysis was used for both folate measurement method and population type. Study heterogeneity was assessed with I2 and publication bias was qualitatively assessed (...) via funnel plot and quantitatively assessed with the trim-and-fill method and Begg's adjusted rank test.We found a significant, small effect size, such that individuals with depression had lower folate levels than those without depression, Hedge's g = -0.24 (95% CI = -0.31, -0.16), p < 0.001. Study heterogeneity was high (I2 = 84.88%), and neither folate measurement method nor population accounted for study heterogeneity.Individuals with depression have lower serum levels of folate and dietary

2017 Journal of psychiatric research

123. Correspondence of folate dietary intake and biomarker data. (PubMed)

examined usual dietary intakes of folate by using the National Cancer Institute method to adjust two 24-h dietary recalls (including dietary supplements) for within-person variation and then compared these intakes with serum and red blood cell (RBC) folate among 4878 men and nonpregnant, nonlactating women aged ≥19 y in NHANES 2011-2012, a nationally representative, cross-sectional survey, with respect to consistency across prevalence estimates and rank order comparisons.Results: There was a very low (...) prevalence (<1%) of folate deficiency when serum (<7 nmol/L) and RBC (<305 nmol/L) folate were considered, whereas a higher proportion of the population reported inadequate total dietary folate intakes (6%). Similar patterns of change occurred between intakes and biomarkers of folate status when distributions were examined (i.e., dose response), particularly when diet was expressed in μg. Intakes greater than the Tolerable Upper Intake Level greatly increased the odds of having high serum folate

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2017 American Journal of Clinical Nutrition

124. Primary care requests for anaemia chemistry tests in Spain: potential iron, transferrin and folate over-requesting. (PubMed)

exceeding €16.5 million. The serum iron test was the most often requested, and the ferritin test was the most costly (over €7 million). Close to €4.5 million could potentially have been saved if iron, transferrin and folate had been appropriately requested (€6 million when extrapolated to the whole Spanish population).The demand for and expenditure on anaemia chemistry tests in primary care in Spain is high, with significant regional differences between different AACCs.Published by the BMJ Publishing (...) Primary care requests for anaemia chemistry tests in Spain: potential iron, transferrin and folate over-requesting. To study the regional variability of requests for anaemia chemistry tests in primary care in Spain and the associated economic costs of potential over-requesting.Requests for anaemia tests were examined in a cross-sectional study. Clinical laboratories from different autonomous communities (AACCs) were invited to report on primary care anaemia chemistry tests requested during 2014

2017 Journal of Clinical Pathology

125. Associations between Folate and Vitamin B12 Levels and Inflammatory Bowel Disease: A Meta-Analysis. (PubMed)

Associations between Folate and Vitamin B12 Levels and Inflammatory Bowel Disease: A Meta-Analysis. Inflammatory bowel disease (IBD) patients may be at risk of vitamin B12 and folate insufficiencies, as these micronutrients are absorbed in the small intestine, which is affected by IBD. However, a consensus has not been reached on the association between IBD and serum folate and vitamin B12 concentrations.In this study, a comprehensive search of multiple databases was performed to identify (...) studies focused on the association between IBD and serum folate and vitamin B12 concentrations. Studies that compared serum folate and vitamin B12 concentrations between IBD and control patients were selected for inclusion in the meta-analysis.The main outcome was the mean difference in serum folate and vitamin B12 concentrations between IBD and control patients. Our findings indicated that the average serum folate concentration in IBD patients was significantly lower than that in control patients

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2017 Nutrients

126. Folate Deficiency Is Prevalent in Women of Childbearing Age in Belize and Is Negatively Affected by Coexisting Vitamin B-12 Deficiency: Belize National Micronutrient Survey 2011. (PubMed)

, vitamin B-12 deficiency, and anemia among women of childbearing age (WCBA) in Belize.Methods: In 2011, a national probability-based survey was completed among Belizean nonpregnant WCBA aged 15-49 y. Blood samples for determination of hemoglobin, folate (RBC and serum), and vitamin B-12 (plasma) and sociodemographic and health information were collected from 937 women. RBC and serum folate concentrations were measured by microbiologic assay (MBA). Folate status was defined based on both the WHO (...) -recommended radioproteinbinding assay and the assay adjusted for the MBA.Results: The national prevalence estimates for folate deficiency in WCBA, based on serum and RBC folate concentrations by using the assay-matched cutoffs, were 11.0% (95% CI: 8.6%, 14.0%) and 35.1% (95% CI: 31.3%, 39.2%), respectively. By using the assay-matched compared with the WHO-recommended cutoffs, a substantially higher prevalence of folate deficiency was observed based on serum (6.9% absolute difference) and RBC folate (28.9

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2017 Journal of Nutrition

127. Folate deficiency and utilization of folic acid fortified flour among pregnant women attending antenatal clinic at Pumwani Maternity Hospital, Kenya, 2015 (PubMed)

, 2015.we conducted a cross-sectional survey at Pumwani Maternity Hospital between October and November 2014. We enrolled pregnant women who received ANC and interviewed them using a semi-structured questionnaire after obtaining informed consent. Blood samples were collected from all study participants and serum folate level was analyzed by electrochemiluminescence immunoassay. Folate deficiency was defined as serum folate of < 10nmols/L and borderline folate deficiency was defined as serum folate (...) Folate deficiency and utilization of folic acid fortified flour among pregnant women attending antenatal clinic at Pumwani Maternity Hospital, Kenya, 2015 in 2012, the Government of Kenya amended the Food, Drug and Chemical Substances Act to make the fortification of maize and wheat flour with folic acid mandatory. We assessed folate deficiency, awareness and use of folic acid fortified flour among pregnant women receiving antenatal care (ANC) at a clinic at Pumwani Maternity Hospital, Kenya

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2017 The Pan African medical journal

128. Correspondence of Folate Dietary Intake and Biomarker Data

of Health and Nutrition Study Details Study Description Go to Brief Summary: This NHANES analysis compares self-reported dietary folate with serum and red blood cell folate status in U.S. adults. Condition or disease Intervention/treatment Folate Deficiency Other: No intervention Detailed Description: Background: Public health concerns of both low and high folate status exist in the U.S. Recent publications have questioned the utility of self-reported dietary intake data in research and monitoring (...) . Objective: The purpose of this analysis was to examine the relationship between self-reported folate intakes and folate status biomarkers, and to evaluate their usefulness for several types of applications. Design: Usual dietary intakes of folate were examined using the National Cancer Institute (NCI) method to adjust 2, 24-hour dietary recalls (including dietary supplements) for within-person variation and compared these intakes with serum and red blood cell (RBC) folate among 4,878 non-pregnant, non

2017 Clinical Trials

129. Polymorphism C677T MTHFR and Folate Intake in Inflammatory Biomarkers

Vanessa de Carvalho Lisboa, Federal University of Paraíba Study Details Study Description Go to Brief Summary: The C677T polymorphism of the MTHFR gene is associated to several biochemicals imbalances, as changes in folic acid serum levels and some inflammatory markers, elevating the oxidative stress and increasing the risk of developing non communicable diseases (NCDs). Thus, a diet containing folate as a main antioxidant nutrient, could reduce not only the oxidative stress, but also has many others (...) benefits for individuals with this genetic alteration, like the anti-inflammatory function, which could help restore the altered serum levels and minimizing or avoiding the development of future diseases. The aim of this study was to evaluate the influence of the C677T polymorphism of the MTHFR gene and the effect of a diet containing folate in the inflammatory markers levels, such as homocysteine, Tumor Necrosis Factor alpha (TNF-α) and interleukins in women with overweight or obesity

2017 Clinical Trials

130. OTL38 for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer

OTL38 for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer OTL38 for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more (...) . OTL38 for Intra-operative Imaging of Folate Receptor Positive Ovarian Cancer The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier: NCT03180307 Recruitment Status : Recruiting First Posted : June 8, 2017 Last Update Posted

2017 Clinical Trials

131. Differential expression of folate receptor 1 in medulloblastoma and the correlation with clinicopathological characters and target therapeutic potential (PubMed)

Differential expression of folate receptor 1 in medulloblastoma and the correlation with clinicopathological characters and target therapeutic potential Medulloblastoma is the most common malignant brain tumor in children. Folate receptor 1 (Folr1) was abundantly expressed in some epithelial malignancies. However the expression profile and the role of clinicopathological significance and therapeutic target potential in medulloblastoma still remain elusive. Currently we detected the expression (...) of Folr1 in medulloblastoma and identified the diagnostic application by evaluating the clinical, pathological and neuroimaging values. Then we developed a target therapeutic compound with Folr1, which exhibited promising efficiency in treatment of medulloblastoma. Folr1 expression was up-regulated in medulloblastoma and positively correlated with percentage of Ki-67 and MMP9 labeling, pathological subtypes, serum Folr1 levels and CSF spreading on MRI. The level of serum Folr1 showed rational

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2017 Oncotarget

132. Validity of the Food Frequency Questionnaire Assessing the Folate Intake in Women of Reproductive Age Living in a Country without Food Fortification: Application of the Method of Triads (PubMed)

Validity of the Food Frequency Questionnaire Assessing the Folate Intake in Women of Reproductive Age Living in a Country without Food Fortification: Application of the Method of Triads The study aimed to examine the external validity of the Folate Food Frequency Questionnaire (F-FFQ) designed for assessing the folate intake in Serbian women of reproductive age. The F-FFQ was tested against repeated 24 h dietary recalls and correspondent nutritional biomarkers (red blood cells (RBC) and serum (...) folate concentrations) using the method of triads. In a cross sectional study, 503 women aged 18-49 years completed dietary questionnaires and representative validation subsample (n = 50) provided fasting blood samples for biomarker analyses. Correlation coefficients were calculated between each of the dietary methods and three pair-wise correlations were applied for the calculation of validity coefficients. Correlation coefficients observed between F-FFQ and three 24 h recalls were r = 0.56 (p

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2017 Nutrients

133. Rapid and Selective Determination of Folate Receptor α with Sensitive Resonance Rayleigh Scattering Signal (PubMed)

Rapid and Selective Determination of Folate Receptor α with Sensitive Resonance Rayleigh Scattering Signal A rapid, simple, and novel method for folate receptor α (FRα) determination is reported here. A probe of gold nanoparticles (Au NPs) modified with anti-FRα antibody was synthesized under the optimized conditions first. The antibody-modified Au NPs would aggregate when FRα was added to the probe for the specific interaction between antibody and antigen, resulting in the enhancement (...) of resonance Rayleigh scattering (RRS) intensity. There is a linear relationship between the change of RRS intensity (ΔIRRS) and the concentration of FRα, with the detecting range of 0.50-37.50 ng·mL-1 and the limit of determination of 0.05 ng·mL-1. The determination of FRα in serum samples was realized with the advantages of high selectivity, high sensitivity, and easy operation.

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2017 International Journal of Analytical Chemistry

134. Influence of Folate-Related Gene Polymorphisms on High-Dose Methotrexate-Related Toxicity and Prognosis in Turkish Children with Acute Lymphoblastic Leukemia (PubMed)

Influence of Folate-Related Gene Polymorphisms on High-Dose Methotrexate-Related Toxicity and Prognosis in Turkish Children with Acute Lymphoblastic Leukemia High-dose methotrexate (HD-MTX) is widely used in the consolidation phase of childhood acute lymphoblastic leukemia (ALL), but the roles that polymorphisms in folate-related genes (FRGs) play in HD-MTX toxicity and prognosis in children with ALL are not understood. The aims of this study were to investigate the frequencies of polymorphisms (...) as follows: TS 2R 41.0%, 3R 57.0%, and 4R 2.0%; MTRR 66A 42.4% and 66G 57.6%; MTHFR 677C 59.3% and 677T 40.7%; and MTHFR 1298A 58.1% and 1298C 41.9%. At the 48th hour of HD-MTX infusion, serum MTX was significantly higher in patients who had TS 2R/3R/4R variants as compared to those with wild-type TS (p<0.05). No significant differences were detected with respect to event-free survival or toxicity between wild-type and other FRG variants.The frequencies of FRG polymorphisms in Turkish children with ALL

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2017 Turkish Journal of Hematology

135. Genetic polymorphisms and folate status (PubMed)

in folate transport and uptake, the folate pathway, and homocysteine (Hcy) metabolism, and various polymorphisms have been documented in these enzymes. Serum folate and total Hcy (tHcy) levels are influenced by folate intake and genetic polymorphisms in 5,10-methylenetertahydrofolate reductase (MTHFR) such as C677T. The prevalence of the MTHFR 677TT genotype varies across ethnic groups and regions, with a frequency of approximately 15% in Japanese populations. Individuals with the TT genotype have (...) significantly higher tHcy levels and lower folate levels in serum than those with the CT and TT genotypes. However, administration of folic acid has been shown to eliminate these differences. Moreover, data have suggested that interventions based on genotype may be effective for motivating individuals to change their lifestyle and improve their nutrition status. Accordingly, in this review, we discuss the effects of MTHFR C677T polymorphisms on serum tHcy and folate levels with folic acid intervention

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2017 Congenital anomalies

136. Cell to rodent: toxicological profiling of folate grafted thiomer enveloped nanoliposomes (PubMed)

Cell to rodent: toxicological profiling of folate grafted thiomer enveloped nanoliposomes Polymeric nanomaterials, hybridized with lipid components, e.g. phosphocholine or fatty acids, are currently being explored for efficient nano-platforms for hydrophobic drugs. However, their toxicology and toxicokinetics need to be established before enabling their clinical potential. The aim of this study was to investigate the toxicological profile of thiomer enveloped hybrid nanoliposomes (ENLs (...) a high level of biocompatibility and safety of ENLs. In vivo acute oral toxicity showed slight changes in serum biochemistry and haematology but no significant toxicities were observed referring to the safety of DTX loaded hybrid ENLs. On histological examination, no lesions were determined on the liver, heart and kidney. These studies showed that hybrid ENLs can serve as a safe and biocompatible platform for oral delivery of hydrophobic drugs.

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2017 Toxicology research

137. High Prevalence of Vitamin B12 Deficiency and No Folate Deficiency in Young Children in Nepal (PubMed)

High Prevalence of Vitamin B12 Deficiency and No Folate Deficiency in Young Children in Nepal Many children in low- and middle-income countries may have inadequate intake of vitamin B12 and folate; data confirming these inadequacies are limited. We used biochemical, demographic, behavioral and anthropometric data to describe the folate and vitamin B12 concentrations among six- to 23-month-old Nepalese children. Vitamin B12 (serum B12 < 150 pmol/L) and folate deficiencies (red blood cell (RBC (...) ) folate < 226.5 nmol/L) were assessed. We used logistic regression to identify predictors of vitamin B12 deficiency. The vitamin B12 geometric mean was 186 pmol/L; 30.2% of children were deficient. The mean RBC folate concentration was 13,612 nmol/L; there was no deficiency. Factors associated with vitamin B12 deficiency included: (a) age six to 11 months (adjusted odds ratio (aOR) 1.51; 95% confidence interval (CI): 1.18, 1.92) or 12-17 months (aOR 1.38; 95% CI: 1.10, 1.72) compared to 18-23 months

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2017 Nutrients

138. Maternal folate deficiency causes inhibition of mTOR signaling, down-regulation of placental amino acid transporters and fetal growth restriction in mice (PubMed)

restriction. Folate deficient mice had lower serum folate (-60%). In late pregnancy, fetal weight in the folate deficient group was decreased (-17%, p < 0.05), whereas placental weight, litter size and crown rump length were unaltered. Maternal folate deficiency inhibited placental mTORC1 and mTORC2 signaling and decreased trophoblast plasma membrane System A and L amino acid transporter activities and transporter isoform expression. Folate deficiency also caused a decrease in phosphorylation of specific (...) Maternal folate deficiency causes inhibition of mTOR signaling, down-regulation of placental amino acid transporters and fetal growth restriction in mice Maternal folate deficiency is linked to restricted fetal growth, however the underlying mechanisms remain to be established. Here we tested the hypothesis that mTOR functions as a folate sensor in vivo in mice and that maternal folate deficiency inhibits placental mTOR signaling and amino acid transporter activity and causes fetal growth

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2017 Scientific reports

139. High levels of circulating folate concentrations are associated with DNA methylation of tumor suppressor and repair genes p16, MLH1, and MGMT in elderly Chileans (PubMed)

studied, by pyrosequencing, the methylation of tumor suppressor gene p16, DNA repair genes MLH1 and MGMT, and the repetitive element LINE-1 (as a surrogate for global DNA methylation), in blood of elderly individuals (n = 249) who had been exposed to folic acid (FA) through FA-fortified wheat flour during the last 12 years.We found that serum folate and to a lesser extent, vitamin B12 concentrations, were significantly correlated with DNA methylation of p16, MLH1, and MGMT, but not with LINE-1. High (...) serum folate concentrations (>45.3 nmol/L) were present in 31.1% of the participants. Although the methylated fraction of CpG sites in p16, MLH1, and MGMT was low (1.17-3.8%), high folate concentrations were significantly associated with methylation at the 3rd tertile of specific CpG sites in all genes with OR between 1.97 and 4.17.This study shows that a public policy, like food fortification with FA that increases circulating serum folate levels, could affect methylation levels of specific genes

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2017 Clinical epigenetics Controlled trial quality: uncertain

140. Folate Insufficiency Due to Celiac Disease in a 49-Year-Old Woman of Southeast Asian-Indian Ethnicity (PubMed)

, we present the case of a 49-year-old woman of Southeast Asian-Indian descent living in the United States who had folate insufficiency, as manifested by low serum and red blood cell (RBC) folate levels. Further investigation, including serologic testing and intestinal biopsy, confirmed a diagnosis of celiac disease and other nutrient deficiencies. Managing the condition of this patient with folate supplements and implementation of a recommended GFD reversed the folate insufficiency. In conclusion (...) , when serum and/or RBC levels are low in a person of Southeast Asian-Indian descent living in a country with folate fortification of the grain supply, such as the United States, the medical team needs to look for an organic cause, as in our patient, to diagnose and manage celiac disease early and, hopefully, forestall complications. © American Society for Clinical Pathology, 2016. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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2016 Laboratory medicine

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