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Fernandes TFDC, Conde PDS, Brasil FDB, Oliveira MRD. Impact of Maternal Folic Acid Supplementation on Descendants' Kidney in Adulthood. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2023; 45:207-214. [PMID: 37224843 PMCID: PMC10208730 DOI: 10.1055/s-0043-1769001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Supplementation with folic acid (FA) during gestation has been recommended by medical society all over the world, but some studies have shown that intake of high folic acid diet may unleash damages to the descendants. OBJECTIVES Describing the effects of maternal supplementation with FA during gestation on offspring's kidney at late life stages. DATA SOURCE It is a systematic review by which were consulted the following databases: Medline, through Pubmed, Lilacs, and SciELO. The research was performed using the keywords "Folic acid", "Gestation" and "Kidney". STUDY SELECTION Eight studies were regarded for this systematic review. DATA COLLECTION Only studies that evaluated folic acid consumption during gestation and its effects exclusively on descendants' kidney at several phases of life were regarded. RESULTS Gestational FA intake did not change the renal volume, glomerular filtration rate and the expression of some essential genes in the kidney of puppies whose dams were supplemented with FA. Maternal consumption of double FA plus selenium diet was effective in preserving antioxidant enzymes activity in the kidney of descendants from mothers exposed to alcohol. FA supplementation decreased some gross anomalies in the puppies caused by teratogenic drug despite of had not been effective in preventing some renal architectural damages. CONCLUSION FA supplementation did not cause renal toxicity; it exerted an antioxidant protective effect and mitigated some renal disorders caused by severe aggressions.
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Naz N, Moshkdanian G, Miyan S, Eljabri S, James C, Miyan J. A Paternal Methylation Error in the Congenital Hydrocephalic Texas (H-Tx) Rat Is Partially Rescued with Natural Folate Supplements. Int J Mol Sci 2023; 24:1638. [PMID: 36675153 PMCID: PMC9860872 DOI: 10.3390/ijms24021638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
Folate deficiencies, folate imbalance and associated abnormal methylation are associated with birth defects, developmental delays, neurological conditions and diseases. In the hydrocephalic Texas (H-Tx) rat, 10-formyl tetrahydrofolate dehydrogenase (FDH) is reduced or absent from the CSF and the nuclei of cells in the brain and liver and this is correlated with decreased DNA methylation. In the present study, we tested whether impaired folate metabolism or methylation exists in sexually mature, unaffected H-Tx rats, which may explain the propagation of hydrocephalus in their offspring. We compared normal Sprague Dawley (SD, n = 6) rats with untreated H-Tx (uH-Tx, n = 6 and folate-treated H-Tx (TrH-Tx, n = 4). Structural abnormalities were observed in the testis of uH-Tx rats, with decreased methylation, increased demethylation, and cell death, particularly of sperm. FDH and FRα protein expression was increased in uH-Tx males but not in folate-treated males but tissue folate levels were unchanged. 5-Methylcytosine was significantly reduced in untreated and partially restored in treated individuals, while 5-hydroxymethylcytosine was not significantly changed. Similarly, a decrease in DNA-methyltransferase-1 expression in uH-Tx rats was partially reversed with treatment. The data expose a significant germline methylation error in unaffected adult male H-Tx rats from which hydrocephalic offspring are obtained. Reduced methylation in the testis and sperm was partially recovered by treatment with folate supplements leading us to conclude that this neurological disorder may not be completely eradicated by maternal supplementation alone.
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Affiliation(s)
| | | | | | | | | | - Jaleel Miyan
- Division of Neuroscience, Faculty of Biology, Medicine and Health, The University of Manchester, 3.540 Stopford Building, Oxford Road, Manchester M13 9PT, UK
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Afifi HH, Gaber KR, Thomas MM, Taher MB, Tosson AMS. Genetic Implications in High-Risk Pregnancy and Its Outcome: A 2-Year Study. Am J Perinatol 2022; 39:1659-1667. [PMID: 33636738 DOI: 10.1055/s-0041-1724002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this study is to evaluate high-risk pregnant females' offspring as regard the presence of any medical condition, hereditary disorder, or major anomaly as well as to document parental sociodemographic characteristics and compliance with follow-up schedules of fetal medicine and clinical genetic clinics. STUDY DESIGN This prospective 2-year cohort study of neonates and infants reported the referral indications, investigations, and diagnoses obtained through prenatal and postnatal examinations. It also reported their parental follow-up vigilance. RESULTS Of the 811 infants of high risk females referred 460 (56.7%) came for assessment. Mean parental consanguinity and endogamy were 67 and 71.3%, respectively. All pregnant mothers underwent first-trimester biochemical testing (plasma protein-A, α-fetoprotein [AFP], human chorionic gonadotropin [hCG]) and serial ultrasound examinations. Seventy mothers needed second-trimester biochemical testing (AFP, hCG, and estriol). Sixty-two mothers underwent amniocentesis where G-banding karyotype, fluorescence in situ hybridization and targeted molecular testing for the specific gene mutation of single gene disorders were conducted according to suspected disorders. High quality fetal ultrasound was performed when brain malformations were suspected, while 16 fetuses required brain MRI examination. Mean age of newborns at first examination was 26.5 days. They were grouped according to the maternal indication for referral. Upon examination, 18 neonates had confirmed congenital malformations/genetic disorders. Five of them were diagnosed prenatally. In four other fetuses with single gene disorder, the molecular diagnosis of their affected siblings was not established prior to this pregnancy; thus, prenatal diagnosis was not possible. The remaining nine cases were diagnosed postnatally. CONCLUSION Parental consanguinity and endogamy were increased among high-risk pregnancies. Public awareness about potential adverse effects of consanguineous marriages and the importance of genetic testing are imperative. A structured multidisciplinary team of specialists in fetal medicine, clinical genetics, and neonatology provides good genetic services. Expansion and financial support of these services are urgently required. KEY POINTS · A multidisciplinary team provides good genetic services in high-risk pregnancies.. · Parental consanguinity and endogamy are increased among high-risk pregnancies.. · Increased public awareness about genetic testing importance and financial support are imperative..
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Affiliation(s)
- Hanan H Afifi
- Division of Human Genetics and Genome Research, Department of Clinical Genetics, Developmental Assessment and Genetic Disorders Clinic, National Research Centre, Cairo, Egypt
| | - Khaled R Gaber
- Division of Human Genetics and Genome Research, Department of Prenatal Diagnosis and Fetal Medicine, National Research Centre, Cairo, Egypt
| | - Manal M Thomas
- Division of Human Genetics and Genome Research, Department of Clinical Genetics, Developmental Assessment and Genetic Disorders Clinic, National Research Centre, Cairo, Egypt
| | - Mohamed B Taher
- Division of Human Genetics and Genome Research, Department of Clinical Genetics, Developmental Assessment and Genetic Disorders Clinic, National Research Centre, Cairo, Egypt
| | - Angie M S Tosson
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
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McAlpine A, Robinson JL, Barton M, Balamohan A, Davies HD, Skar G, Lefebvre MA, Almadani A, Freire D, Le Saux N, Bowes J, Srigley JA, Passarelli P, Bradley J, Khan S, Purewal R, Viel-Thériault I, Ranger A, Hawkes MT. Cerebrospinal Fluid Shunt Infections: A Multicenter Pediatric Study. Pediatr Infect Dis J 2022; 41:449-454. [PMID: 35389956 DOI: 10.1097/inf.0000000000003513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Infections complicate 5%-10% of cerebrospinal fluid (CSF) shunts. We aimed to describe the characteristics and contemporary pathogens of shunt infections in children in Canada and the United States. METHODS Descriptive case series at tertiary care hospitals in Canada (N = 8) and the United States (N = 3) of children up to 18 years of age with CSF shunt infections from July 1, 2013, through June 30, 2019. RESULTS There were 154 children (43% female, median age 2.7 years, 50% premature) with ≥1 CSF shunt infections. Median time between shunt placement and infection was 54 days (interquartile range, 24 days-2.3 years). Common pathogens were coagulase-negative staphylococci (N = 42; 28%), methicillin-susceptible Staphylococcus aureus (N = 24; 16%), methicillin-resistant S. aureus (N = 9; 5.9%), Pseudomonas aeruginosa (N = 9; 5.9%) and other Gram-negative bacilli (N = 14; 9.0%). Significant differences between pathogens were observed, including timing of infection (P = 0.023) and CSF leukocyte count (P = 0.0019); however, differences were not sufficient to reliably predict the causative organism based on the timing of infection or discriminate P. aeruginosa from other pathogens based on clinical features. Empiric antibiotic regimens, which included vancomycin (71%), cefotaxime or ceftriaxone (29%) and antipseudomonal beta-lactams (33%), were discordant with the pathogen isolated in five cases. There was variability between sites in the distribution of pathogens and choice of empiric antibiotics. Nine children died; 4 (44%) deaths were attributed to shunt infection. CONCLUSIONS Staphylococci remain the most common cause of CSF shunt infections, although antibiotic resistant Gram-negative bacilli occur and cannot be reliably predicted based on clinical characteristics.
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Affiliation(s)
- Alastair McAlpine
- From the Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joan L Robinson
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Michelle Barton
- Department of Pediatrics, London, Health Sciences Centre, Western University, London, Ontario, Canada
| | - Archana Balamohan
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - H Dele Davies
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska
| | - Gwenn Skar
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska
| | | | - Ahmed Almadani
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Dolores Freire
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Nicole Le Saux
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | - Jennifer Bowes
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | - Jocelyn A Srigley
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Patrick Passarelli
- Department of Pediatrics UC San Diego School of Medicine, San Diego, California
| | - John Bradley
- Department of Pediatrics UC San Diego School of Medicine, San Diego, California
| | - Sarah Khan
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Rupeena Purewal
- Department of Pediatrics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | | | - Adrianna Ranger
- Department of Clinical Neurological Sciences (Neurosurgery), London, Health Sciences Centre, Western University, London, Ontario, Canada
| | - Michael T Hawkes
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
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Gili JA, López-Camelo JS, Nembhard WN, Bakker M, de Walle HEK, Stallings EB, Kancherla V, Contiero P, Dastgiri S, Feldkamp ML, Nance A, Gatt M, Martínez L, Canessa MA, Groisman B, Hurtado-Villa P, Källén K, Landau D, Lelong N, Morgan M, Arteaga-Vázquez J, Pierini A, Rissmann A, Sipek A, Szabova E, Wertelecki W, Zarante I, Canfield MA, Mastroiacovo P. Analysis of early neonatal case fatality rate among newborns with congenital hydrocephalus, a 2000-2014 multi-country registry-based study. Birth Defects Res 2022; 114:631-644. [PMID: 35633200 DOI: 10.1002/bdr2.2045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/05/2022] [Accepted: 04/29/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Congenital hydrocephalus (CH) comprises a heterogeneous group of birth anomalies with a wide-ranging prevalence across geographic regions and registry type. The aim of the present study was to analyze the early neonatal case fatality rate (CFR) and total birth prevalence of newborns diagnosed with CH. METHODS Data were provided by 25 registries from four continents participating in the International Clearinghouse for Birth Defects Surveillance and Research (ICBDSR) on births ascertained between 2000 and 2014. Two CH rates were calculated using a Poisson distribution: early neonatal CFR (death within 7 days) per 100 liveborn CH cases (CFR) and total birth prevalence rate (BPR) per 10,000 births (including live births and stillbirths) (BPR). Heterogeneity between registries was calculated using a meta-analysis approach with random effects. Temporal trends in CFR and BPR within registries were evaluated through Poisson regression modeling. RESULTS A total of 13,112 CH cases among 19,293,280 total births were analyzed. The early neonatal CFR was 5.9 per 100 liveborn cases, 95% confidence interval (CI): 5.4-6.8. The CFR among syndromic cases was 2.7 times (95% CI: 2.2-3.3) higher than among non-syndromic cases (10.4% [95% CI: 9.3-11.7] and 4.4% [95% CI: 3.7-5.2], respectively). The total BPR was 6.8 per 10,000 births (95% CI: 6.7-6.9). Stratified by elective termination of pregnancy for fetal anomalies (ETOPFA), region and system, higher CFR were observed alongside higher BPR rates. The early neonatal CFR and total BPR did not show temporal variation, with the exception of a CFR decrease in one registry. CONCLUSIONS Findings of early neonatal CFR and total BPR were highly heterogeneous among registries participating in ICBDSR. Most registries with higher CFR also had higher BPR. Differences were attributable to type of registry (hospital-based vs. population-based), ETOPFA (allowed yes or no) and geographical regions. These findings contribute to the understanding of regional differences of CH occurrence and early neonatal deaths.
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Affiliation(s)
- Juan Antonio Gili
- ECLAMC, Centro de Educación Médica e Investigaciones Clínicas (CEMIC-CONICET), Buenos Aires, Argentina.,Instituto Académico Pedagógico de Ciencias Humanas, Universidad Nacional de Villa María, Córdoba, Argentina
| | | | - Wendy N Nembhard
- Department of Epidemiology, Arkansas Center for Birth Defects Research and Prevention and Arkansas Reproductive Health Monitoring System, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Marian Bakker
- Department of Genetics, University of Groningen, University Medical Center Groningen, EUROCAT Northern Netherlands, Groningen, The Netherlands
| | - Hermien E K de Walle
- Department of Genetics, University of Groningen, University Medical Center Groningen, EUROCAT Northern Netherlands, Groningen, The Netherlands
| | - Erin B Stallings
- Metro Atlanta Congenital Defects Program (MACDP), Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, Georgia, USA
| | - Vijaya Kancherla
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, Georgia, USA
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- As listed in http://www.fundacion1000.es/Estructura-del-ECEMC for year 2021, Spain
| | - Paolo Contiero
- Lombardy Congenital Anomalies Registry, Cancer Registry Unit, Fondazione IRCCS, Istituto Nazionale Tumori, Milan, Italy
| | - Saeed Dastgiri
- Health Services Management Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marcia L Feldkamp
- Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Amy Nance
- Utah Birth Defect Network, Bureau of Children with Special Health Care Needs, Division of Family Health and Preparedness, Utah Department of Health, Salt Lake City, Utah, USA
| | - Miriam Gatt
- Malta Congenital Anomalies Registry, Directorate for Health Information and Research, Tal-Pietà, Malta
| | - Laura Martínez
- Genetics Department, Hospital Universitario Dr. José E. González, Universidad Autonóma de Nuevo León, San Nicolás de los Garza, Mexico
| | - María Aurora Canessa
- Regional Register Congenital Malformation Maule Health Service (RRMC-SSM), Maule, Chile
| | - Boris Groisman
- National Network of Congenital Anomalies of Argentina (RENAC), National Center of Medical Genetics, National Administration of Laboratories and Health Institutes (ANLIS), National Ministry of Health and Social Development, Buenos Aires, Argentina
| | - Paula Hurtado-Villa
- Department of Basic Sciences of Health, School of Health, Pontificia Universidad Javeriana, Cali, Colombia
| | - Karin Källén
- National Board of Health and Welfare, Stockholm, Sweden
| | - Danielle Landau
- Department of Neonatology, Soroka Medical Center, Beer-Sheva, Israel
| | - Nathalie Lelong
- Université de Paris, CRESS Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), INSERM, INRA, Paris, France
| | - Margery Morgan
- CARIS, The Congenital Anomaly Register for Wales, Singleton Hospital, Swansea, Wales, UK
| | - Jazmín Arteaga-Vázquez
- Department of Genetics, RYVEMCE, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, Mexico
| | - Anna Pierini
- Institute of Clinical Physiology, National Research Council and Fondazione Toscana Gabriele Monasterio, Tuscany Registry of Congenital Defects, Pisa, Italy
| | - Anke Rissmann
- Medical Faculty, Malformation Monitoring Centre Saxony-Anhalt, Otto-von-Guericke University, Magdeburg, Germany
| | - Antonin Sipek
- Department of Medical Genetics, Thomayer University Hospital, Prague, Czech Republic
| | - Elena Szabova
- Slovak Teratologic Information Centre (FPH), Slovak Medical University, Bratislava, Slovak Republic
| | | | - Ignacio Zarante
- Human Genetics Institute, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Mark A Canfield
- Birth Defects Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas, USA
| | - Pierpaolo Mastroiacovo
- International Center on Birth Defects, International Clearinghouse for Birth Defects Surveillance and Research, Rome, Italy
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Mulugeta B, Seyoum G, Mekonnen A, Ketema E. Assessment of the prevalence and associated risk factors of pediatric hydrocephalus in diagnostic centers in Addis Ababa, Ethiopia. BMC Pediatr 2022; 22:145. [PMID: 35303805 PMCID: PMC8932009 DOI: 10.1186/s12887-022-03212-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 03/06/2022] [Indexed: 12/02/2022] Open
Abstract
Background Hydrocephalus (HCP) is a common disorder of cerebral spinal fluid (CSF) physiology resulting in abnormal expansion of the cerebral ventricles. Infants commonly present with progressive macrocephaly whereas children older than 2 years generally present with signs and symptoms of intracranial hypertension. Neither qualitatively nor quantitatively are there adequate data to determine the prevalence and incidence of HCP in the developing world. HCP is a treatable condition that when left untreated, has fatal consequences. Objective The objective of this study was to assess the prevalence of pediatric HCP and associated risk factors in diagnostic centers in Addis Ababa, Ethiopia. Methods This study was conducted using a cross-sectional facility-based study design over a two-time period, i.e. a 2-year retrospective data collection from January 2018 to January 2020 included 1101 patients and a prospective data collection from May 2019 to February 2020 included 99 patients. Children aged 5 years and below who came to the selected diagnostic centers for MRI/CT examination were studied. The collected data were analyzed using binary logistic regression. Result The retrospective study included 639(58%) males and 462 (42%) females. The mean age calculated was 22.3 months. Infants aged younger than 24 months 753 (68.4%) were significantly associated with HCP development (P < 0.05). In the retrospective study, HCP etiologies; Aqueductal stenosis (17.9%), Neural Tube defects (NTDs) (35.7%), post-infectious (10.1%) were identified. In the prospective study, the gender and age distribution was 57(57.6%) males, 42 (42.4%) females, 60.6% infants aged younger than 24 months with a mean age of 24.9 months. Inadequate consumption of folic acid and development of HCP was found to be statistically significant (P < 0.05). In the prospective study, HCP etiologies; Aqueductal stenosis (26.1%), Neural Tube defects (26.08%), and post-infectious (8.69%) were identified. The 3 years prevalence of HCP calculated in both studies was 22% (223 per 1000 live births). Conclusion The results of this study suggest that the high prevalence of HCP was due to the high prevalence of aqueductal stenosis and neural tube defects; with a small contribution of post-infectious causes. The majority of infants who present with HCP were aged younger than 24 months.
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Affiliation(s)
- Blein Mulugeta
- Department of Medical Radiologic Technology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Girma Seyoum
- Department of Anatomy, Addis Ababa University, Addis Ababa, Ethiopia.
| | - Abebe Mekonnen
- Department of Radiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Elbet Ketema
- Departmetn of Pediatrics, Addis Ababa University, Addis Ababa, Ethiopia
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Long-term trends in the incidence of congenital anomalies in Central China from 1997 to 2019. Public Health 2022; 203:47-52. [PMID: 35032914 DOI: 10.1016/j.puhe.2021.12.007] [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: 05/24/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim of the study was to investigate the incidence of, and trends in, congenital anomalies in Central China from 1997 to 2019. STUDY DESIGN This was a descriptive study. METHODS We collected data describing 4,134,098 births from 75 hospital monitoring sites in Henan Province, Central China, from 1997 to 2019. A joinpoint regression model was used to analyze the continuous changes. RESULTS There were 4,134,098 births recorded from 1997 to 2019, of which 50,646 noted the presence of congenital anomalies (incidence: 122.5 per 10,000). The incidence of congenital anomalies was found to have increased over time (P-trend <0.05). Congenital anomaly incidence in urban areas was higher than that in rural areas (155.3 per 10,000 vs 100.7 per 10,000; P < 0.001). Moreover, incidence was higher in males than in females (129.1 per 10,000 vs 112.9 per 10,000; P < 0.001). The incidence of neural tube defects significantly reduced from 1997 to 2019 (39.3 per 10,000 in 1997 vs 0.92 per 10,000 in 2019, P-trend <0.001), whereas the incidence of congenital heart disease (CHD) increased (5.56 per 10,000 in 2010 to 136.46 per 10,000 in 2019), which meant that CHD was the most common congenital anomaly post-2013. CONCLUSION In Henan province, the incidence of congenital anomalies increased by 115% from 1997 to 2019. Notably, the incidence of CHD is rising.
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Wilson R, O'Connor D. Maternal folic acid and multivitamin supplementation: International clinical evidence with considerations for the prevention of folate-sensitive birth defects. Prev Med Rep 2021; 24:101617. [PMID: 34976673 PMCID: PMC8684027 DOI: 10.1016/j.pmedr.2021.101617] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 12/17/2022] Open
Abstract
More evidence is available for maternal intake, absorption, distribution, tissue specific concentrations, and pregnancy outcomes with folic acid (fortification/supplementation) during preconception - first trimester. This Quality Improvement prevention review used expert guidelines/opinions, systematic reviews, randomized control trials/controlled clinical trials, and observational case control/case series studies, published in English, from 1990 to August 2021. Optimization for an oral maternal folic acid supplementation is difficult because it relies on folic acid dose, type of folate supplement, bio-availability of the folate from foods, timing of supplementation initiation, maternal metabolism/genetic factors, and many other factors. There is continued use of high dose pre-food fortification 'RCT evidenced-based' folic acid supplementation for NTD recurrence pregnancy prevention. Innovation requires preconception and pregnancy use of 'carbon one nutrient' supplements (folic acid, vitamin B12, B6, choline), using the appropriate evidence, need to be considered. The consideration and adoption of directed personalized approaches for maternal complex risk could use serum folate testing for supplementation dosing choice. Routine daily folic acid dosing for low-risk women should consider a multivitamin with 0.4 mg of folic acid starting 3 months prior to conception until completion of breastfeeding. Routine folic acid dosing or preconception measurement of maternal serum folate (after 4-6 weeks of folate supplementation) could be considered for maternal complex risk group with genetic/medical/surgical co-morbidities. These new approaches for folic acid oral supplementation are required to optimize benefit (decreasing folate sensitive congenital anomalies; childhood morbidity) and minimizing potential maternal and childhood risk.
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Affiliation(s)
- R.D. Wilson
- Cumming School of Medicine, Department of Obstetrics and Gynecology, University of Calgary, FMC NT 435, 1403 29 St NW, Calgary, Alberta, Canada
| | - D.L. O'Connor
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
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9
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Abstract
OBJECTIVE We examined whether folic acid (FA) supplementation prevented congenital hydrocephalus (CH) in more than 200 000 births in China. DESIGN A large population-based cohort study. SETTING All births at 20 complete gestational weeks, including live births, stillbirths and pregnancy terminations, and all structural birth defects regardless of gestational week were recorded. The prevalence of births with CH was classified by maternal characteristics and FA supplementation. CH was diagnosed in accordance with code 742.3 of the International Classification of Diseases, Ninth Revision, Clinical Modification, while non-neural tube defect (NTD) CH refers to CH without anencephaly (740), spina bifida (741) or encephalocele (742·0). PARTICIPANTS A total of 247 831 pregnant women who delivered with known outcomes were included. RESULTS A total of 206 cases of CH (0·83 per 1000 births) and 170 cases of non-NTD CH (0·69 per 1000 births) were recorded in the study. The prevalence of CH and non-NTD CH was higher in women in the no supplementation group than those in the FA supplementation group (0·92 and 0·72 v. 0·75 and 0·65 per 1000 births, respectively). FA supplementation during the periconceptional period significantly prevented CH (OR = 0·29, 95 % CI 0·12, 0·69) and non-NTD CH (OR = 0·34, 95 % CI 0·12, 0·97) in northern China, especially in a high-compliance group (≥ 80 %). CONCLUSIONS Periconceptional FA supplementation did not significantly prevent CH overall in the current study. However, in the north of China with common maternal folate insufficiency, there was some evidence.
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10
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Ji J, He Z, Qu P, Gao J, Zhang W, Wu P, Wei J, Zhang T, Ma ZF, Luo X, Mi Y. The Xi'an longitudinal mother-child cohort study: design, study population and methods. Eur J Epidemiol 2021; 36:223-232. [PMID: 33420871 DOI: 10.1007/s10654-020-00704-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 12/03/2020] [Indexed: 12/13/2022]
Abstract
The large-scale Xi'an longitudinal mother-child cohort study has started to enroll pregnant women who attended Northwest Women's and Children's Hospital (NWCH) for antenatal care in early pregnancy (less than 20 weeks' gestation) from January 2013 and the enrollment will be ended in January 2023. We aimed to investigate the role of external factors (i.e., diet and environment) and internal (i.e., biological, genetic and epigenetic) on the short- and long-term outcomes of mothers and children up to at least 12 years. Mothers completed all routine prenatal care during pregnancy and four times of follow-up at 42 days, 3, 6 and 12 years after delivery, respectively. For children, birth information were obtained from routine medical records and the follow-up information were obtained from child health care clinics of NWCH at age 42 days, 6, 12 and 24 months, then by interviewing mothers every two years until 12 years old. A range of data (including biological, demographic, birth outcomes/birth defects and nutritional factors from both maternal and off-spring) were collected by both interviews and laboratory tests. By June 30th 2019, a total of 114,946 mothers and 124,454 live births had been recruited.
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Affiliation(s)
- Jing Ji
- Department of Obstetrics and Gynecology, Northwest Women's and Children's Hospital, Xi'an, 710061, China
| | - Zhangya He
- Department of Nutrition and Food Safety, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Pengfei Qu
- Department of Obstetrics and Gynecology, Northwest Women's and Children's Hospital, Xi'an, 710061, China
| | - Jiayi Gao
- Department of Nutrition and Food Safety, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Wanyu Zhang
- Department of Nutrition and Food Safety, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Pei Wu
- Department of Nutrition and Food Safety, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Junxiang Wei
- Department of Obstetrics and Gynecology, Northwest Women's and Children's Hospital, Xi'an, 710061, China
| | - Tianxiao Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Zheng Feei Ma
- Department of Health and Environmental Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Xiaoqin Luo
- Department of Nutrition and Food Safety, School of Public Health, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Yang Mi
- Department of Obstetrics and Gynecology, Northwest Women's and Children's Hospital, Xi'an, 710061, China.
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