Abstract:
BACKGROUND:The role of folate in pregnancy is well established, with most prenatal vitamins (PNVs) on the market containing at least 800 μg of folic acid. Folic acid must be converted in the body to L-methylfolate, the natural and biologically active form of folate. The role of vitamin B(12) in pregnancy is less characterized, and most PNV formulations contain only 0 to 12 μg. The present study was undertaken to evaluate whether taking a prenatal medical food containing L-methylfolate and much higher doses of vitamin B(12) results in higher hemoglobin levels and thus, a lower incidence of anemia during pregnancy. OBJECTIVE:The objective of this exploratory study was to evaluate the effects of the prenatal medical food versus standard PNVs on hemoglobin levels and adverse outcomes throughout pregnancy. METHODS:For this retrospective analysis, we reviewed the charts of female patients taking either a prenatal medical food or standard PNV during pregnancy. Hemoglobin levels measured at initiation of prenatal care, end of second trimester, and delivery were recorded. Patients who had received additional iron supplementation, beyond that contained in the prenatal medical food or PNV they were taking and before anemia screening at the end of the second trimester, were excluded from the study. Fisher exact test, χ(2) test, student t test, and ANOVA were used to evaluate differences between the treatment groups. RESULTS:Data were analyzed from 112 charts: 58 patients (51.8%) were taking the prenatal medical food; 54 patients (48.2%) were taking standard PNVs. Mean (SD) age at first prenatal visit was 27 (4.6) years in the medical food group and 28.8 (3.5) years in the PNV group (P = 0.024). Mean (SD) body mass indices were 29.1 (6.5) and 31.7 (8.9) in the medical food and PNV groups, respectively (P = NS). In the medical food group, 35 women (60.3%) were white/Caucasian, 17 (29.3%) were African American, and 6 (10.4%) were of other races. In the PNV group, 24 women (44.4%) were white/Caucasian, 25 (46.3%) were African American, and 5 (9.3%) were of other races. However, race was not significantly different between the two groups. At end of second trimester and at delivery, mean (SD) hemoglobin levels were higher in the prenatal medical food group (11.8 [1.1] g/dL and 11.8 [1.3] g/dL, respectively) than in the PNV group (11.3 [1.2] g/dL and 10.7 [1.2] g/dL, respectively) (P = 0.011 and P = 0.001, respectively). Significantly fewer cases of anemia were reported at end of second trimester in the prenatal medical food group than in the PNV group (39.7% vs 74.1%; P = 0.001). CONCLUSIONS:In the present study, supplementation with a prenatal medical food containing L-methylfolate and high-dose vitamin B(12) may maintain hemoglobin levels and decrease rates of anemia in pregnancy more effectively than standard prenatal vitamins; however, prospective, controlled studies are warranted. ClinicalTrials.gov identifier: NCT01193192.
journal_name
Clin Therjournal_title
Clinical therapeuticsauthors
Bentley S,Hermes A,Phillips D,Daoud YA,Hanna Sdoi
10.1016/j.clinthera.2011.02.010subject
Has Abstractpub_date
2011-02-01 00:00:00pages
204-10issue
2eissn
0149-2918issn
1879-114Xpii
S0149-2918(11)00134-2journal_volume
33pub_type
杂志文章,多中心研究abstract:BACKGROUND:In this era of evidence-based medicine, clinicians require a comprehensive range of well-designed studies to support prescribing decisions and patient management. In recent years, data from observational studies have become an increasingly important source of evidence because of improvements in observational...
journal_title:Clinical therapeutics
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doi:10.1016/j.clinthera.2007.07.004
更新日期:2007-06-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2011.01.016
更新日期:2011-01-01 00:00:00
abstract::The medical records for 174 patients who underwent cholecystectomy (n = 52) or hip/knee replacement (n = 122) at four community-based medical centers were retrospectively reviewed to determine if using a nonnarcotic alternative to morphine sulfate and/or meperidine as a primary postoperative analgesic could reduce res...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究
doi:
更新日期:1993-09-01 00:00:00
abstract:PURPOSE:Our aim was to develop and validate the extrapolative performance of a regression model using a limited sampling strategy for accurate estimation of the area under the plasma concentration versus time curve for saroglitazar. METHODS:Healthy subject pharmacokinetic data from a well-powered food-effect study (fa...
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pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2018.01.016
更新日期:2018-03-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1989-05-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2013-08-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章
doi:10.1016/s0149-2918(97)80141-5
更新日期:1997-05-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2010.07.016
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journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2006.10.015
更新日期:2006-10-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
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更新日期:1998-01-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2010.06.022
更新日期:2010-07-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1994-07-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1016/s0149-2918(02)80005-4
更新日期:2002-06-01 00:00:00
abstract::The effect of leuprorelin acetate depot on the endocrine system and on lipid metabolism was evaluated in a multicentre, noncomparative study. During the first month of treatment, suppression of serum oestradiol levels to below 20 pg/ml was achieved and luteinising hormone and follicle-stimulating hormone levels were r...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1992-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/s0149-2918(97)80120-8
更新日期:1997-03-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验,收录出版
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更新日期:2010-08-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2010.06.011
更新日期:2010-06-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章
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更新日期:2020-10-01 00:00:00
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更新日期:1997-07-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2012-07-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2012.05.007
更新日期:2012-07-01 00:00:00
abstract::Twenty men, aged 50 to 75 years (mean, 67 years), suffering from benign prostatic hypertrophy received 160 mg of a lyposterolic extract of Serenoa repens, twice daily for 30 days. Before and at the end of treatment, plasma levels of testosterone, follicle-stimulating hormone, and luteinizing hormone were determined. N...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2016-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-10-01 00:00:00
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pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:Clarithromycin is a semisynthetic macrolide that exhibits broad-spectrum activity against gram-positive, gram-negative, and atypical respiratory tract and skin/skin structure pathogens, Mycobacterium species, and Helicobacter pylori. It is indicated for the treatment of a wide variety of respiratory and derm...
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pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2001-04-01 00:00:00
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journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
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更新日期:2008-11-01 00:00:00
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更新日期:2012-07-01 00:00:00