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34 Results Found

  • Article
  • Open Access
3 Citations
3,913 Views
9 Pages

A Glance into MTHFR Deficiency at a Molecular Level

  • Castrense Savojardo,
  • Giulia Babbi,
  • Davide Baldazzi,
  • Pier Luigi Martelli and
  • Rita Casadio

23 December 2021

MTHFR deficiency still deserves an investigation to associate the phenotype to protein structure variations. To this aim, considering the MTHFR wild type protein structure, with a catalytic and a regulatory domain and taking advantage of state-of-the...

  • Article
  • Open Access
88 Citations
20,891 Views
18 Pages

10 August 2015

Folate deficiency is strongly associated with cardiovascular disease. We aimed to explore the joint effect of the methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C, methionine synthase (MTR) A2756G, and methionine synthase reductase (MTRR)...

  • Article
  • Open Access
4 Citations
7,008 Views
14 Pages

Contribution of Genetic Test to Early Diagnosis of Methylenetetrahydrofolate Reductase (MTHFR) Deficiency: The Experience of a Reference Center in Southern Italy

  • Ferdinando Barretta,
  • Fabiana Uomo,
  • Simona Fecarotta,
  • Lucia Albano,
  • Daniela Crisci,
  • Alessandra Verde,
  • Maria Grazia Fisco,
  • Giovanna Gallo,
  • Daniela Dottore Stagna and
  • Maria Rosaria Pricolo
  • + 7 authors

26 April 2023

Background: the deficiency of 5,10-Methylenetetrahydrofolate reductase (MTHFR) constitutes a rare and severe metabolic disease and is included in most expanded newborn screening (NBS) programs worldwide. Patients with severe MTHFR deficiency develop...

  • Case Report
  • Open Access
1,382 Views
9 Pages

Psychotic Disorder Secondary to Cerebral Venous Thrombosis Caused by Primary Thrombophilia in a Pediatric Patient with Protein S Deficiency and an MTHFR p.Ala222Val Variant: A Case Report

  • Darío Martínez-Pascual,
  • Alejandra Dennise Solis-Mendoza,
  • Jacqueline Calderon-García,
  • Bettina Sommer,
  • Eduardo Calixto,
  • María E. Martinez-Enriquez,
  • Arnoldo Aquino-Gálvez,
  • Hector Solis-Chagoyan,
  • Luis M. Montaño and
  • Bianca S. Romero-Martinez
  • + 2 authors

Background and Clinical Significance: Herein, we describe the clinical case of a 17-year-old patient with psychotic disorder secondary to cerebral venous thrombosis due to primary thrombophilia, which was related to protein S deficiency and a heteroz...

  • Systematic Review
  • Open Access
5 Citations
3,385 Views
11 Pages

The Proper Diagnosis of Thrombophilic Status in Preventing Fetal Growth Restriction

  • Bianca-Margareta Mihai,
  • Teodor Salmen,
  • Ana-Maria Cioca and
  • Roxana-Elena Bohîlțea

Fetal growth restriction is an important part of monitoring a pregnancy. Because guidelines or diagnostic criteria for either minor or major thrombophilia are scarce, this systematic review aims to summarize the present knowledge in the field. We per...

  • Article
  • Open Access
54 Citations
6,955 Views
15 Pages

Osteoporosis is an age-related bone disease, affecting mainly postmenopausal women, characterized by decreased bone mineral density (BMD) and consequent risk of fractures. Homocysteine (Hcy), a sulfur-aminoacid whose serum level is regulated by methy...

  • Article
  • Open Access
34 Citations
14,195 Views
18 Pages

Folate Insufficiency Due to MTHFR Deficiency Is Bypassed by 5-Methyltetrahydrofolate

  • Maša Vidmar Golja,
  • Alenka Šmid,
  • Nataša Karas Kuželički,
  • Jurij Trontelj,
  • Ksenija Geršak and
  • Irena Mlinarič-Raščan

2 September 2020

Adequate levels of folates are essential for homeostasis of the organism, prevention of congenital malformations, and the salvage of predisposed disease states. They depend on genetic predisposition, and therefore, a pharmacogenetic approach to indiv...

  • Review
  • Open Access
27 Citations
11,105 Views
25 Pages

23 December 2021

Impaired folate-mediated one-carbon metabolism (FOCM) is associated with many pathologies and developmental abnormalities. FOCM is a metabolic network of interdependent biosynthetic pathways that is known to be compartmentalized in the cytoplasm, mit...

  • Article
  • Open Access
1,029 Views
12 Pages

Low Dietary Folate Increases Developmental Delays in the Litters of Mthfr677TT Mice

  • Karen E. Christensen,
  • Marie-Lou Faquette,
  • Vafa Keser,
  • Alaina M. Reagan,
  • Aaron T. Gebert,
  • Teodoro Bottiglieri,
  • Gareth R. Howell and
  • Rima Rozen

1 August 2025

Background/Objectives: Low folate intake before and during pregnancy increases the risk of neural tube defects and other adverse outcomes. Gene variants such as MTHFR 677C>T (rs1801133) may increase risks associated with suboptimal folate intake....

  • Article
  • Open Access
13 Citations
5,022 Views
27 Pages

MTHFR Knockdown Assists Cell Defense against Folate Depletion Induced Chromosome Segregation and Uracil Misincorporation in DNA

  • Ming-Tsung Wu,
  • Wei-Ting Ye,
  • Yi-Cheng Wang,
  • Po-Ming Chen,
  • Jun-You Liu,
  • Chien-Kuo Tai,
  • Feng-Yao Tang,
  • Jian-Rong Li,
  • Chun-Chi Liu and
  • En-Pei Isabel Chiang

30 August 2021

Folate depletion causes chromosomal instability by increasing DNA strand breakage, uracil misincorporation, and defective repair. Folate mediated one-carbon metabolism has been suggested to play a key role in the carcinogenesis and progression of hep...

  • Article
  • Open Access
6 Citations
3,858 Views
16 Pages

Ischemic heart disease (IHD) is among the leading causes of death worldwide. Methylenetetrahydrofolate reductase (MTHFR) polymorphisms have been associated with IHD risk, but the findings presented with heterogeneity. The purpose of the present meta-...

  • Article
  • Open Access
4 Citations
3,334 Views
15 Pages

Co-Occurring Methylenetetrahydrofolate Reductase (MTHFR) rs1801133 and rs1801131 Genotypes as Associative Genetic Modifiers of Clinical Severity in Rett Syndrome

  • Jatinder Singh,
  • Georgina Wilkins,
  • Ella Goodman-Vincent,
  • Samiya Chishti,
  • Ruben Bonilla Guerrero,
  • Leighton McFadden,
  • Zvi Zahavi and
  • Paramala Santosh

Aim: Remethylation disorders such as 5,10-methylenetetrahydrofolate reductase (MTHFR) deficiency reduce the remethylation of homocysteine to methionine. The resulting hyperhomocysteinemia can lead to serious neurological consequences and multisystem...

  • Case Report
  • Open Access
2,841 Views
9 Pages

The Role of Folate Deficiency as a Potential Risk Factor for Nontraumatic Anterior Spinal Artery Syndrome in an Adolescent Girl

  • Chun-Chieh Hu,
  • Yung-Yu Yang,
  • G. W. Gant Luxton,
  • Yu-Pang Lin,
  • Kuo-Sheng Hung and
  • Chih-Fen Hu

29 October 2022

Nontraumatic anterior spinal artery syndrome (ASAS) is an extremely rare clinical condition in pediatric populations with a mostly unknown underlying etiology. Here we discuss the case of a previously healthy 14-year-old girl presenting with sudden o...

  • Article
  • Open Access
15 Citations
1,597 Views
6 Pages

Genetic variations of MTHFR gene and their association with preterm birth in Korean women

  • In Wook Hwang,
  • Yun Dan Kang,
  • Bit Na Kwon,
  • Jun Ho Hong,
  • Seung Hun Han,
  • Jong Soo Kim,
  • Jin Wan Park and
  • Han Jun Jin

3 February 2018

Background and objective: The MTHFR gene encodes the methylenetetrahydrofolate reductase known to be involved in the homocysteine–methionine pathway. It has been reported that the deficiency of MTHFR activity may cause hyperhomocysteinemia which resu...

  • Article
  • Open Access
13 Citations
4,325 Views
15 Pages

Methylenetetrahydrofolate Reductase (MTHFR) Gene Polymorphism and Infant’s Anthropometry at Birth

  • Sofía Aguilar-Lacasaña,
  • Inmaculada López-Flores,
  • Beatriz González-Alzaga,
  • María José Giménez-Asensio,
  • F. David Carmona,
  • Antonio F. Hernández,
  • María Felicidad López Gallego,
  • Desirée Romero-Molina and
  • Marina Lacasaña

3 March 2021

Identification of causal factors that influence fetal growth and anthropometry at birth is of great importance as they provide information about increased risk of disease throughout life. The association between maternal genetic polymorphism MTHFR(67...

  • Article
  • Open Access
10 Citations
3,078 Views
10 Pages

18 May 2022

Background: To investigate relationships between five single nucleotide polymorphisms (SNP) in four maternal genes involved in one carbon metabolism and adverse pregnancy outcomes, including preterm birth (PTB), low birth weight (LBW), and small-for-...

  • Review
  • Open Access
4 Citations
2,794 Views
18 Pages

Relevance of Plasma Homocysteine and Methylenetetrahydrofolate Reductase 677TT Genotype in Sickle Cell Disease: A Systematic Review and Meta-Analysis

  • Paul R. J. Ames,
  • Alessia Arcaro,
  • Matilde Caruso,
  • Maria Graf,
  • Vincenzo Marottoli and
  • Fabrizio Gentile

24 November 2022

We evaluated the relevance of plasma homocysteine (HC) and the TT genotype of the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism (rs1801133) in sickle cell disease (SCD) and associated vaso-occlusive crisis (VOC) and ischemic stroke (...

  • Review
  • Open Access
72 Citations
19,894 Views
15 Pages

DNA methylation and other epigenetic factors are important in the pathogenesis of late-onset Alzheimer’s disease (LOAD). Methylenetetrahydrofolate reductase (MTHFR) gene mutations occur in most elderly patients with memory loss. MTHFR is critic...

  • Article
  • Open Access
2 Citations
3,756 Views
14 Pages

(1) Background. One of the causes of myocardial infarction (MI) with nonobstructive coronary arteries (MINOCA) is thrombus formation in situ followed by lysis, resulting in a morphologically normal angiogram but with an underlying prothrombotic state...

  • Article
  • Open Access
2,874 Views
14 Pages

Synergistic Effects of MTHFR, MTRR, and MTR Gene Variants on Serum Folate Levels and Cognitive Function in Chinese Preschoolers: A Cross-Sectional Study

  • Lingling Ou,
  • Luolan Peng,
  • Jingbo Wang,
  • Chao Han,
  • Xiayu Zhao,
  • Mengyao Wang,
  • Mengtian Wang,
  • Zhaolong Gong and
  • Yan Li

18 August 2025

Background/Objectives: Subnormal folate levels have a detrimental impact on the growth and development of preschoolers. We aimed to investigate the association between independent/synergistic effects of the gene polymorphisms (methyltetrahydrofolate...

  • Review
  • Open Access
43 Citations
11,488 Views
13 Pages

Does Folic Acid Protect Patients with Inflammatory Bowel Disease from Complications?

  • Alicja Ewa Ratajczak,
  • Aleksandra Szymczak-Tomczak,
  • Anna Maria Rychter,
  • Agnieszka Zawada,
  • Agnieszka Dobrowolska and
  • Iwona Krela-Kaźmierczak

12 November 2021

Folic acid, referred to as vitamin B9, is a water-soluble substance, which participates in the synthesis of nucleic acids, amino acids, and proteins. Similarly to B12 and B6, vitamin B9 is involved in the metabolism of homocysteine, which is associat...

  • Article
  • Open Access
7 Citations
3,021 Views
12 Pages

Impact of Thrombophilic Polymorphisms in Antenatal Women on Perinatal Health: A Single-Center Prospective Study

  • Vesna Sokol Karadjole,
  • Antonio D’Amato,
  • Milan Milošević,
  • Mislav Herman,
  • Mislav Mikuš,
  • Antonio Simone Laganà,
  • Vito Chiantera and
  • Andrea Etrusco

19 April 2024

Background: Despite pregnancy’s hypercoagulable state, the correlation between inherited thrombophilia and thrombotic adverse pregnancy outcomes remains uncertain. The objective of this study was to determine the prevalence of inherited thrombo...

  • Abstract
  • Open Access
2 Citations
1,819 Views
2 Pages

Riboflavin Status in Pregnancy and Its Relationship with Blood Pressure, Heart Rate and Risk of Hypertension: Findings from the OptiPREG Observational Study

  • Bethany Duffy,
  • Helene McNulty,
  • Mary Ward,
  • Elina Psara,
  • Emma O’Sullivan,
  • Geraldine Horigan and
  • Kristina Pentieva

Clinical riboflavin deficiency is common in low- and middle-income countries, whilst sub-optimal riboflavin status may be much more prevalent globally than generally recognized, including in high-income countries. Riboflavin biomarkers are rarely ass...

  • Article
  • Open Access
8 Citations
7,463 Views
18 Pages

For personalized healthcare, the purpose of this study was to examine the key genes and metabolites in the one-carbon metabolism (OCM) pathway and their interactions as predictors of colorectal cancer (CRC) in multi-ethnic families. In this proof-of-...

  • Review
  • Open Access
4 Citations
5,401 Views
22 Pages

Methylation is a biochemical process involving the addition of a methyl group (-CH3) to various chemical compounds. It plays a crucial role in maintaining the homeostasis of the endothelium, which lines the interior surface of blood vessels, and has...

  • Review
  • Open Access
114 Citations
17,591 Views
29 Pages

Causes, Consequences and Public Health Implications of Low B-Vitamin Status in Ageing

  • Kirsty Porter,
  • Leane Hoey,
  • Catherine F. Hughes,
  • Mary Ward and
  • Helene McNulty

16 November 2016

The potential protective roles of folate and the metabolically related B-vitamins (vitamins B12, B6 and riboflavin) in diseases of ageing are of increasing research interest. The most common cause of folate and riboflavin deficiencies in older people...

  • Review
  • Open Access
29 Citations
10,228 Views
20 Pages

Lactoferrin—The Health-Promoting Properties and Contemporary Application with Genetic Aspects

  • Anna Jańczuk,
  • Aneta Brodziak,
  • Tomasz Czernecki and
  • Jolanta Król

23 December 2022

The aim of the study is to present a review of literature data on lactoferrin’s characteristics, applications, and multiple health-promoting properties, with special regard to nutrigenomics and nutrigenetics. The article presents a new approach...

  • Review
  • Open Access
18 Citations
22,212 Views
15 Pages

Folate–Methionine Cycle Disruptions in ASD Patients and Possible Interventions: A Systematic Review

  • Melissa Roufael,
  • Tania Bitar,
  • Yonna Sacre,
  • Christian Andres and
  • Walid Hleihel

13 March 2023

Autism Spectrum Disorder (ASD) has become a major public health concern due to its rapidly rising incidence over the past few years. Disturbances in folate or methionine metabolism have been identified in many individuals with ASD, suggesting that th...

  • Article
  • Open Access
4 Citations
5,076 Views
14 Pages

Folate and Vitamin B12 Levels in Chilean Women with PCOS and Their Association with Metabolic Outcomes

  • Matías Carrasco-Cabezas,
  • Taís Silveira Assmann,
  • Paz Martínez,
  • Leslie Cerpa,
  • Susan Calfunao,
  • Bárbara Echiburú,
  • Manuel Maliqueo,
  • Nicolás Crisosto and
  • Francisca Salas-Pérez

19 June 2024

Polycystic ovary syndrome (PCOS) is a common endocrine disorder that affects women of reproductive age. Many women with PCOS have been found to have an unbalanced diet and deficiencies in essential nutrients. This study aimed to assess the levels of...

  • Article
  • Open Access
2 Citations
2,594 Views
14 Pages

The Effect of Dietary Methyl-Donor Intake and Other Lifestyle Factors on Cancer Patients in Hungary

  • Eva Kiss,
  • Anett Hajdu,
  • Gertrud Forika,
  • Magdolna Dank,
  • Tibor Krenacs and
  • Zsuzsanna Nemeth

13 September 2022

Background: Nutrition is essential to life and can have an indisputable influence on health and prevention of disease development including cancer. Methyl-donors are macronutrients that are important in achieving a healthy balance of metabolic proces...

  • Article
  • Open Access
12 Citations
7,644 Views
16 Pages

Absorption and Tissue Distribution of Folate Forms in Rats: Indications for Specific Folate Form Supplementation during Pregnancy

  • Natasha Bobrowski-Khoury,
  • Jeffrey M. Sequeira,
  • Erland Arning,
  • Teodoro Bottiglieri and
  • Edward V. Quadros

9 June 2022

Food fortification and folic acid supplementation during pregnancy have been implemented as strategies to prevent fetal malformations during pregnancy. However, with the emergence of conditions where folate metabolism and transport are disrupted, suc...

  • Review
  • Open Access
11 Citations
7,962 Views
16 Pages

Biomarker-Guided Dietary Supplementation: A Narrative Review of Precision in Personalized Nutrition

  • Evgeny Pokushalov,
  • Andrey Ponomarenko,
  • Evgenya Shrainer,
  • Dmitry Kudlay and
  • Richard Miller

25 November 2024

Background: Dietary supplements (DS) are widely used to address nutritional deficiencies and promote health, yet their indiscriminate use often leads to reduced efficacy, adverse effects, and safety concerns. Biomarker-driven approaches have emerged...

  • Article
  • Open Access
1 Citations
2,408 Views
24 Pages

Background: Parkinson’s disorder (PD) affects around 1:500 individuals and is associated with enlarged ventricles and symptoms of normal pressure hydrocephalus (NPH). These features suggest disrupted cerebrospinal fluid (CSF) dynamics and folat...

  • Article
  • Open Access
1 Citations
2,341 Views
19 Pages

The Inhibitory Effects of NCT503 and Exogenous Serine on High-Selenium Induced Insulin Resistance in Mice

  • Shuo Zhan,
  • Jianrong Wang,
  • Mingyu Zhu,
  • Yiqun Liu,
  • Feng Han,
  • Licui Sun,
  • Qin Wang and
  • Zhenwu Huang

16 January 2025

Objective: This study aims to identify whether the development of insulin resistance (IR) induced by high selenium (Se) is related to serine deficiency via the inhibition of the de novo serine synthesis pathway (SSP) by the administrations of 3-phosp...