User profiles for Philip R. Wyatt

Philip Wyatt

Discipline Director, Biochemical Genetics
Verified email at labcorp.com
Cited by 4914

Association of neural tube defects and folic acid food fortification in Canada

JG Ray, C Meier, MJ Vermeulen, S Boss, PR Wyatt… - The Lancet, 2002 - thelancet.com
Many women do not receive folic acid supplements before conception. In response, most of
Canada's cereal grain products were being fortified with folic acid by January, 1998, thereby …

Vitamin B12 and the risk of neural tube defects in a folic-acid-fortified population

JG Ray, PR Wyatt, MD Thompson, MJ Vermeulen… - …, 2007 - journals.lww.com
Background: Low maternal vitamin B 12 status may be a risk factor for neural tube defects (NTDs).
Prior studies used relatively insensitive measures of B 12, did not adjust for folate …

Greater maternal weight and the ongoing risk of neural tube defects after folic acid flour fortification

JG Ray, PR Wyatt, MJ Vermeulen, C Meier… - Obstetrics & …, 2005 - journals.lww.com
OBJECTIVE: Maternal obesity is likely a risk factor for neural tube defects (NTDs). By late
1997, it became mandatory in Canada that all refined wheat flour be fortified with folic acid. …

Age-specific risk of fetal loss observed in a second trimester serum screening population

PR Wyatt, T Owolabi, C Meier, T Huang - American journal of obstetrics and …, 2005 - Elsevier
OBJECTIVE: The purpose of this study was to investigate age-specific spontaneous fetal
loss rates of pregnancies without known chromosomal or structural abnormalities from mid-…

Investigation of NRXN1 deletions: Clinical and molecular characterization

…, K Siefkas, PR Wyatt, L Hughes, R Smith… - American Journal of …, 2013 - Wiley Online Library
Deletions at 2p16.3 involving exons of NRXN1 are associated with susceptibility for autism
and schizophrenia, and similar deletions have been identified in individuals with …

Association between folic acid food fortification and congenital orofacial clefts

JG Ray, C Meier, MJ Vermeulen, PR Wyatt… - The Journal of …, 2003 - Elsevier
By January 1998, most of Canada's cereal grain products were being fortified with folic acid.
Among 336,963 women who underwent antenatal maternal serum screening, the …

Extending the phenotypes associated with TRIO gene variants in a cohort of 25 patients and review of the literature

…, ES Angelovska, C McWilliam, PR Wyatt… - American Journal of …, 2023 - Wiley Online Library
The TRIO gene encodes a rho guanine exchange factor, the function of which is to exchange
GDP to GTP, and hence to activate Rho GTPases, and has been described to impact …

Maternal ethnicity and risk of neural tube defects: a population-based study

JG Ray, MJ Vermeulen, C Meier, DEC Cole, PR Wyatt - CMAJ, 2004 - Can Med Assoc
Background: Maternal body mass and the presence of diabetes mellitus are probable risk
factors for neural tube defects (NTDs). The association between maternal ethnicity and the risk …

The implications of a false positive second-trimester serum screen for Down syndrome

…, T Huang, C Meier, PR Wyatt - Obstetrics & …, 2003 - journals.lww.com
OBJECTIVE To investigate the genetic and obstetric implications of false positive Down
syndrome serum screening results. METHODS The study population comprised 162,774 women …

[HTML][HTML] Metabolic syndrome features and risk of neural tube defects

…, MJ Vermeulen, C Meier, PR Wyatt… - BMC Pregnancy and …, 2007 - Springer
Background Maternal obesity and pre-pregnancy diabetes mellitus, features of the metabolic
syndrome (MetSyn), are individual risk factors for neural tube defects (NTD). Whether they, …