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The noncoding SNP rs7205289, located in the microRNA-140 gene has been associated with cleft palate risk. MiR-140 was found to regulate zebrafish palatal development in vivo and its expression level be reduced by environmental smoke exposure in vitro. Therefore, we sought to investigate whether the A allele of rs7205289 and maternal smoke exposure during(More)
BACKGROUND Nonsyndromic oral clefts are complex in cause and have multiple genetic and environmental risk factors. This retrospective, questionnaire-based, case-control study investigated the relationship between oral clefts and parental mental and physical health and social support. METHODS Three hundred forty-seven parents of children with nonsyndromic(More)
Excessive dexamethasone (Dex) administrated into pregnant mice during critical periods of palatal development can produce a high incidence of cleft palate. Its mechanisms remain unknown. Vitamin B12 has been shown to antagonize the teratogenic effects of Dex, which, however, remains controversial. In this study, we investigated the effects of Dex and(More)
Small ubiquitin-like modifier 1 (SUMO1) has been shown to be associated with cleft lip and palate in animal models. However, rarely studies have linked SUMO1 to nonsyndromic cleft lip with or without cleft palate in humans. The purpose of this study was to confirm the contribution of SUMO1 to nonsyndromic orofacial clefts in western Han Chinese. Four(More)
B vitamins rescue cleft palate induced by glucocorticoids in rodents; however, the mechanism of this effect remains largely unknown. The objective of our study was to assess the effect of dexamethasone and Vitamin B12 on cell proliferation and apoptosis during palatogenesis. In our study, mesenchymal cell proliferation in mouse embryonic palates decreased(More)
Twist1 is a basic helix-loop-helix-containing transcription factor that is expressed in the dental mesenchyme during the early stages of tooth development. To better delineate its roles in tooth development, we generated Twist1 conditional knockout embryos (Twist2(Cre) (/+);Twist1(fl/fl)) by breeding Twist1 floxed mice (Twist1(fl/fl)) with Twist2-Cre(More)
OBJECTIVE To evaluate the parental craniofacial morphology in Chinese patients with sporadic nonsyndromic cleft lip with or without palate. METHODS A total of 98 parental pairs of nonsyndromic unilateral incomplete cleft lip children, 207 parental pairs of nonsyndromic complete cleft lip and palate children, and 206 normal persons from Sichuan University(More)
BACKGROUND Twist1 and Twist2 are highly homologous bHLH transcription factors that exhibit extensive highly overlapping expression profiles during development. While both proteins have been shown to inhibit osteogenesis, only Twist1 haploinsufficiency is associated with the premature synostosis of cranial sutures in mice and humans. On the other hand,(More)
OBJECTIVES To study the prevalence of drug-resistant HBV in patients with therapy failure in a Chinese tertiary referral liver centre. METHODS 1223 HBV-infected patients who underwent genotypic resistance testing between 2010-2014 were studied. RESULTS 3TC genotypic resistance was the most common (46.5%), followed by LdT resistant (46.2%), ETV(More)
BACKGROUND/PURPOSE The Fgf10 signaling pathway plays an important role in early stages of mouse embryonic palatal development, which is associated with cell proliferation and differentiation. The objective of this study was to assess whether dexamethasone and vitamin B(12) affected the Fgf10 signal pathway of mouse embryonic palate. MATERIALS AND METHODS(More)