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Liu H, Li Q, Liu T, Tang Y, Yu F. Trimester-specific reference intervals of serum homocysteine levels for pregnant women: a longitudinal study in China. Gynecol Endocrinol 2023; 39:2242974. [PMID: 37553809 DOI: 10.1080/09513590.2023.2242974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 07/17/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023] Open
Abstract
OBJECTIVE To investigate the physiological changes of serum homocysteine (Hcy) levels and to establish trimester-specific reference intervals of serum Hcy levels for Chinese pregnant women. METHOD According to the guideline of the Clinical and Laboratory Standards Institute (CLSI) C28-A3 document, 476 healthy women were recruited in West China Second University Hospital, Sichuan University from January 2021 to October 2021. Among them, 120 were non-pregnant, 118 were in the first trimester, 120 were in the second and 118 were in the third trimester of gestation. The enzymatic cycling method was performed to detect serum Hcy levels. Non-parametric percentiles (2.5th percentile and 97.5th percentile) were calculated to establish the reference intervals for non-pregnant women and pregnant women in different trimester of gestation. RESULTS There was a significant statistical difference for serum Hcy levels between non-pregnant women and pregnant women (p < 0.05), and serum Hcy levels in the first, second, and third trimesters of gestation were statistically different (p < 0.05). The trimester-specific reference intervals of serum Hcy levels were 4.35 ∼ 10.16 μmol/L, 3.38 ∼ 8.60 μmol/L, and 3.75 ∼ 11.17 μmol/L for pregnant women in the first, second, and third trimester of gestation, respectively. CONCLUSIONS Compared to non-pregnant women, serum Hcy levels physiologically decreased after pregnancy, and the physiological changes in serum Hcy levels during pregnancy were also found. Establishing trimester-specific reference intervals of serum Hcy levels for pregnant women was valuable for clinical practice.
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Affiliation(s)
- Hai Liu
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Qing Li
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Ting Liu
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Yuanting Tang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Fan Yu
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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The role of lactoferrin in atherosclerosis. Biometals 2022; 36:509-519. [PMID: 36053470 DOI: 10.1007/s10534-022-00441-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/24/2022] [Indexed: 11/02/2022]
Abstract
Atherosclerosis (AS) is a common pathological basis for many cardiovascular diseases (CVDs) and result in high mortality and immense health and economic burdens worldwide. Early prevention, diagnosis, and treatment are promising approaches for stemming the development and progression of AS. Lactoferrin (Lf) is an iron-binding glycoprotein belonging to the transferrin family. It is widely found in body fluids such as digestive tract fluids, tears, and milk. Lf possesses anti-inflammatory, antibacterial, immunoregulatory, antioxidant and many other physiological functions. The serum Lf level is reportedly associated with the risk of AS and AS-related CVDs. Lf administration is closely involved in several mechanisms, including cholesterol metabolism, foam cell formation, ICAM-1 expression, homocysteine and leptin levels, anti-inflammatory and antioxidant function. Moreover, Lf has also been applied in the sythesis of magnetic resonance imaging (MRI) contrast agents to detect AS. Lf plays an important role in AS and may therefore be used in its diagnosis and treatment. Thus, this article aims to review the association between Lf and the risk of AS and AS-related CVDs, the mechanisms of Lf administration on AS, and its potential application in AS diagnosis.
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Hou J, Lin L, Guo W, Luo D, Lan L. Association of methylenetetrahydrofolate reductase C677T polymorphism with the pre-eclampsia risk in Hakka pregnant women in Southern China. Gynecol Endocrinol 2020; 36:322-326. [PMID: 31452430 DOI: 10.1080/09513590.2019.1658188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The aim of this study is to clarify the possible association between methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and pre-eclampsia in Hakka pregnant women in southern China. Pre-eclampsia and normal pregnant women were consecutively collected and MTHFR C677T genotypes were determined by the DNA sequencing method. One hundred and thirteen pre-eclampsia patients were CC homozygote (113 of 191, 59.2%), 68 of 191 (35.6%) were CT heterozygote, and 10 of 191 (5.2%) were TT homozygote, with the frequency of the T allele equal to 0.77. This is in comparison with the normal control group where 106 of 202 (52.5%) were CC homozygote, 83 of 202 (41.1%) were CT heterozygote, and 13 of 202 (6.4%) were TT homozygote, with the frequency of the T allele equal to 0.27. No statistically significant differences were observed in genotype or allele frequencies between the pre-eclampsia and normal control for the C677T polymorphism of MTHFR gene (p > .05). The findings of this study suggest that polymorphisms of MTHFR C677T genes were not associated with pre-eclampsia in Hakka pregnant women from southern China, but additional studies are necessary to explore the mechanisms involving it.
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Affiliation(s)
- Jingyuan Hou
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
| | - Lifang Lin
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Wei Guo
- Clinical Core Laboratory, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
- Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou, P. R. China
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Dandan Luo
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
| | - Liubing Lan
- Prenatal Diagnosis Center, Meizhou People's Hospital (Huangtang Hospital), Meizhou Hospital Affiliated to Sun Yat-Sen University, Meizhou, P. R. China
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Cornet D, Clement A, Clement P, Menezo Y. High doses of folic acid induce a pseudo-methylenetetrahydrofolate syndrome. SAGE Open Med Case Rep 2019; 7:2050313X19850435. [PMID: 31205715 PMCID: PMC6537060 DOI: 10.1177/2050313x19850435] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/23/2019] [Indexed: 12/14/2022] Open
Abstract
A 41-year-old Caucasian woman with a history of infertility dating from 2011 was
identified as wild-type (no mutations) for methylenetetrahydrofolate reductase
single nucleotide polymorphisms (MTHFR-SNPs). Previous treatment included three
failed in vitro fertilization/intracytoplasmic sperm injection cycles as well as
one failed cycle of in vitro fertilization/intracytoplasmic sperm injection with
donated oocytes. Counseling for a further oocyte donation cycle included advice
to take high doses of folic acid (5 mG per day). Prior to initiation of this
cycle, in October 2017 she attended our unit for general gynecological
assessment and was found to have a slightly increased level of homocysteine,
12.2 µmol/L. A further test in February 2018 showed an increase to 17.2 µmol/L.
Folic acid was stopped, and she was treated with 5-MTHF (500 µG daily), which
supports the one-carbon cycle. After 5 days of treatment, her homocysteine level
dropped to a baseline level of 8.2 µmol/L. As previously described in mice, high
doses of folic acid can induce a “pseudo MTHFR” syndrome in wild-type patients,
leading to an elevated unmetabolized folic acid syndrome which results in
increased serum levels of homocysteine.
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Affiliation(s)
| | | | | | - Yves Menezo
- Laboratoire Clement, Paris, France.,London Fertility Associates, London, UK
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Nozari S, Fathi Maroufi N, Nouri M, Paytakhti Oskouei M, Shiralizade J, Yekani F, Mamipour M, Faridvand Y. Decreasing serum homocysteine and hypocholesterolemic effects of Bovine lactoferrin in male rat fed with high-cholesterol diet. J Cardiovasc Thorac Res 2018; 10:203-208. [PMID: 30680078 PMCID: PMC6335985 DOI: 10.15171/jcvtr.2018.35] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 09/30/2018] [Indexed: 12/23/2022] Open
Abstract
Introduction:
Lipid metabolism disorder or hyperlipidemia is known as a risk factor for
cardiovascular disease, the increase in serum homocysteine and leptin are associated with
atherosclerotic disease. The purpose of the present study was to examine the effects of bovine
lactoferrin (bLF) on serum homocysteine (Hcy), apolipoproteinA-I (ApoA-I) and B (ApoB),
leptin and lipid profile changes in high-cholesterol-diet (HCD) fed rats.
Methods: The Healthy Adult Sprague-Dawley (SD) male rats were randomly assigned into three
experimental groups. Each group consisted of eleven male rats including control group, HCD
rats and hypercholesterolemic rats, which were treated with bLF (HCD+bLF). bLF was given by
gavage (200 mg/kg/d). After 4 weeks of feeding and overnight fasting, total blood samples were
collected.
Results: The results showed the elevated level of Hcy, leptin, total cholesterol, low density
lipoprotein cholesterol (LDL-C), ApoB and decrease in ApoA-I in non-treated HCD group
compared to the control rats. Administration of bLF significantly ameliorated the Hcy and
leptin levels with decrease in LDL-C and total cholesterol in rats fed with a high-cholesterol diet.
bLF also tended to increase low serum concentration of ApoA-I and high density lipoprotein
cholesterol (HDL-C) in HCD rats. Meanwhile, upon bLF-treated rats, there was a significant
decrease in ApoB in HCD group.
Conclusion: The findings indicated that bLF can improve the alteration of serum Hcy, leptin,
apolipproteins and lipid changes in male rats fed with high-cholesterol diet. So, bLF can counteract
with HCD elicited hyper-homocysteinemia and hyper-leptinemia, suggesting it to have the useful
therapeutic potential in patients with atherosclerosis and lipid disorder.
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Affiliation(s)
- Samira Nozari
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Stem Cell and Regenerative Medicine Institute (SCARM), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazila Fathi Maroufi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Stem Cell and Regenerative Medicine Institute (SCARM), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mirhamid Paytakhti Oskouei
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Shiralizade
- Department of Biochemistry, Faculty of Biology, Payam-e-Noor University of Mashhad, Mashhad, Iran
| | - Farshid Yekani
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Mina Mamipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yousef Faridvand
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Stem Cell and Regenerative Medicine Institute (SCARM), Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Yang Y, Jiang H, Tang A, Xiang Z. Changes of serum homocysteine levels during pregnancy and the establishment of reference intervals in pregnant Chinese women. Clin Chim Acta 2018; 489:1-4. [PMID: 30468714 DOI: 10.1016/j.cca.2018.11.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/17/2018] [Accepted: 11/19/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUD Reference intervals (RIs) of clinical laboratory indexes are important basis for interpretation of corresponding test results. While elevated homocysteine (HCY) level is a risk factor of some severe gestational diseases, HCY RIs for pregnant women have not been reported so far. The current use of HCY RIs established for general population in pregnant women may challenge clinicians' judgment. This study aims to investigate the changes of serum HCY levels during pregnancy and establish the RIs of serum HCY in healthy pregnant Chinese women to provide valuable data to clinicians and enable the provision of more appropriate therapy. METHODS 354 healthy pregnant Chinese women were randomly selected and divided into three groups according to gestational age: 114 in first trimester (1-13 week), 120 in second trimester (14-27 week) and 120 in third trimester (≥28 week). 120 healthy non-pregnant Chinese women were randomly selected as the non-pregnant control group. Serum HCY levels were determined on automatic biochemical analyzer with enzymatic cycling method. The RIs of serum HCY for healthy pregnant women were established using a nonparametric method. RESULTS the RIs of serum HCY for healthy pregnant women is 5.79-11.86 μmol/L in first and second trimester (combined) and 6.13-16.75 μmol/L in third trimester. Besides, the RIs of serum HCY for healthy non-pregnant women is 8.25-22.92 μmol/L. CONCLUSIONS Rigorously according to CLSI C28-A3 guidelines, the authoritative document of RIs establishment, the RIs of serum HCY for healthy pregnant Chinese women were established, which will provide a valuable reference for clinical work and laboratory researches.
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Affiliation(s)
- Yuanqing Yang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongmin Jiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Aiguo Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhongyuan Xiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Shiralizadeh J, Barmaki H, Haiaty S, Faridvand Y, Mostafazadeh M, Mokarizadeh N, Kamrani A, Isazadeh A, Maroufi NF. The effects of high and low doses of folic acid on oxidation of protein levels during pregnancy: a randomized double-blind clinical trial. Horm Mol Biol Clin Investig 2018; 33:/j/hmbci.ahead-of-print/hmbci-2017-0039/hmbci-2017-0039.xml. [DOI: 10.1515/hmbci-2017-0039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/17/2017] [Indexed: 12/31/2022]
Abstract
AbstractObjectiveOxidants include important active molecules which are created in the body and attack biological molecules especially lipids, carbohydrates, nucleic acids and proteins, and cause oxidation and various diseases in the body. Antioxidants existing in the body help to avoid the incidence of these injuries. Pregnant women are among those where oxidation of biological molecules may do irreparable damage to them and their embryos. So, the purpose of this study was to review the effect of folic acid with both high (5 mg/day) and low (0.5 mg/day) doses on the changes of oxidative protein in reducing plasma homocystein concentration during pregnancy.Materials and methodsForty-five pregnant women participated in this study. They were divided into two groups: group 1 included 23 women who received 5 mg/day folic acid and group 2 included 23 women who took 0.5 mg/day folic acid before pregnancy till the 36th week pregnancy. We measured the biochemical variables in the serum of pregnant women at the beginning and at the end of the study.ResultsFolic acid reduced plasma homocytein in both low and high dose groups (p = 0.035, p = 0.012, respectively). Also, the results showed that folic acid prescription led to reduce plasma level of carbonyl groups in both low and high dose groups (p = 0.01, p = 0.03, respectively). Furthermore, the results showed that there is no significant difference between two groups and folic acid affects both groups equally.ConclusionIt is possible that folic acid administration can reduce plasma homocysteine and carbonyl levels during pregnancy in dose independent manner
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The effect of oxidative stress induced by tert-butylhydroperoxide under distinct folic acid conditions: An in vitro study using cultured human trophoblast-derived cells. Reprod Toxicol 2018; 77:33-42. [PMID: 29425713 DOI: 10.1016/j.reprotox.2018.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 12/14/2022]
Abstract
Preeclampsia is a pregnancy disorder characterized by high maternal blood pressure, fetal growth restriction and intrauterine hypoxia. Folic acid is a vitamin required during pregnancy. In this work, we investigated the relationship between preeclampsia and the intake of distinct doses of folic acid during pregnancy. Considering that preeclampsia is associated with increased placental oxidative stress levels, we investigated the effect of oxidative stress induced by tert-butylhydroperoxide (TBH) in human trophoblast-derived cells cultured upon deficient/low, physiological and supra-physiological folic acid levels. The negative effect of TBH upon thiobarbituric acid reactive substances (TBARS), total, reduced and oxidized glutathione, cell viability, cell proliferation, culture growth and cell migration was more marked under folic acid excess. This study suggests more attention on the dose administered, and ultimately, on the overall folic acid levels during pregnancy, in the context of preeclampsia risk.
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