Abstract:
:The time of origin of motor neurons and their distribution in the spinal cord was studied in rat embryos by combining whole-embryo culture and the Islet-1 immunostaining technique. Cells immunostained for Islet-1 appeared in the trunk neural tube by 27 hours (corresponding to E10.625) in culture of E9.5 embryos, at which time the cell number of the neural tube in a transverse section was about 200. When the neural tube retarded developmentally by lithium treatment, the time of appearance of the motor neurons was delayed to 33 hours in culture (corresponding to E10.875), but the cell number of the neural tube was about 200. After the initial appearance of motor neurons in the ventral aspect of the neural tube, they distributed in a group in the periphery of the basal plate by 48 hours (corresponding to E11.5) in culture, although in the retarded neural tube the number of motor neurons was small and they did not form a cluster. The percentage of Islet-1-positive cells at the point of the same cell number of the trunk neural tube in the transverse section was higher in the retarded embryos than in controls. These results suggest that motor neurons begin to appear when the cell number of the neural tube in the transverse section becomes about 200 and their initial development is more stable than overall neural tube development.
journal_name
Congenit Anom (Kyoto)journal_title
Congenital anomaliesauthors
Matsuda Mdoi
10.1111/j.1741-4520.2002.tb00862.xsubject
Has Abstractpub_date
2002-06-01 00:00:00pages
130-4issue
2eissn
0914-3505issn
1741-4520journal_volume
42pub_type
杂志文章abstract::Deletion of TWIST on 7p21 leads to Saethre-Chotzen syndrome, whereas deletion of the HOXA cluster on 7p15.2 leads to hand-foot-genital syndrome. We report here a patient with 46,XY,del(7)(p15.2p21) who had craniosynostosis, maxillary hypoplasia, prominent ear crus, rectoperineal fistula, and hypoplastic fifth fingers....
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2005.00059.x
更新日期:2005-03-01 00:00:00
abstract::To investigate the abnormalities that are specific to administration of flucytosine at one time point during embryonic organogenesis, flucytosine was administered orally to pregnant Sprague Dawley (SD) rats in a single dose on day 11 of pregnancy at 25 or 35 mg/kg. Fetuses on day 20 of pregnancy were externally, visce...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12282
更新日期:2019-03-01 00:00:00
abstract::The human genome harbors approximately 2000 genes that encode microRNAs (miRNAs), small non-coding RNAs of approximately 20-22 nt that mediate post-transcriptional gene silencing. MiRNAs are generated from long transcripts through stepwise processing by the Drosha/DGCR8, Exportin-5/RanGTP and Dicer/TRBP complexes. Giv...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12043
更新日期:2014-02-01 00:00:00
abstract::A 32-year-old gravida 2, para 1 woman, with a previous uneventful pregnancy, underwent first trimester ultrasound screening for Down syndrome at 13 weeks according to the Fetal Medicine Foundation guidelines (http://www.fetalmedicine.com/pdf/11-14/english/FMF-English.pdf). The ultrasound showed increased nuchal transl...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2007.00146.x
更新日期:2007-06-01 00:00:00
abstract::Down syndrome (DS) is the most common cause of mental retardation. Several DS mouse models with partial trisomy 16 homologous to human chromosome 21 have been developed, and our research group has been studying those mouse models. We have shown a dosage-dependent overexpression of genes in the trisomic region of the m...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/j.1741-4520.2012.00367.x
更新日期:2012-06-01 00:00:00
abstract::Recent development of biomedical engineering as well as basic biology and medicine has enabled us to induce cell-based regeneration of body tissue to self-repair defective tissue or substitute biological functions of damaged organs. For successful tissue regeneration, it is indispensable to give cells an environment s...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/j.1741-4520.2004.00024.x
更新日期:2004-09-01 00:00:00
abstract::Monitoring in Ishikawa Prefecture (mean population; 1,150,000), during the 20-year period from 1981 to 2000, involved monitoring the prevalence of congenital anomalies starting at gestational week 22. The main objectives of the present study were (1) to investigate the trend over the past 20 years in the prevalence of...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2003.tb01015.x
更新日期:2003-12-01 00:00:00
abstract::Even though from preclinical testing to drug risk labeling, the situation with drugs in pregnancy has improved substantially since the thalidomide scandal, there is still an increasing need to provide healthcare professionals and patients with updated individualized risk information for clinical decision making. For t...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/j.1741-4520.2010.00308.x
更新日期:2011-03-01 00:00:00
abstract::Certain studies previously pointed out that treating pregnant women with antidepressants may increase risks of congenital anomalies in their children. However, to date, the study results are not conclusive. Furthermore, most studies have been performed using data from Western countries; therefore, we examined this ass...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12386
更新日期:2020-11-01 00:00:00
abstract::Many of the effects of dioxins, which are potent environmental pollutants and teratogens, are mediated through the aryl hydrocarbon receptor, also known as the dioxin receptor. The purpose of the present study was to characterize dioxin-responsive genes in a comprehensive manner using two complementary approaches: bio...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2006.00116.x
更新日期:2006-09-01 00:00:00
abstract::The most common form of male infertility is a low sperm count, known as oligozoospermia. Studies suggest that oligozoospermia is associated with epigenetic alterations. Epigenetic alterations in sperm, which may arise due to the exposure of gametes to environmental factors or those that pre-exist in the sperm of infer...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12113
更新日期:2015-08-01 00:00:00
abstract::Cerebro-costo-mandibular syndrome (CCMS) is a very rare syndrome characterized by micrognathia and posterior rib gap, with a poor prognosis. To date, only 75 cases have been reported worldwide. The overall survival rate for patients with this disorder has not been reported, and a classification of the patients on the ...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2010.00281.x
更新日期:2010-09-01 00:00:00
abstract::Hydroxyprogesterone, a synthetic progestin, was used for the treatment of pregnant women with threatened abortion and preterm delivery. Previous studies showed some association between hydroxyprogesterone use during early pregnancy and some specific congenital abnormalities. The population-based large Hungarian data s...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2006.00128.x
更新日期:2006-12-01 00:00:00
abstract::Molecular pathogenesis of human cerebral malformations is briefly reviewed from a neuropathologic viewpoint, with emphasis on holoprosencephaly and neuronal migration disorders. Immunopathologic approaches are useful in elucidating the essential pathomechanism of these anomalies. In alobar holoprosencephaly, for insta...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/j.1741-4520.2003.tb01023.x
更新日期:2003-03-01 00:00:00
abstract::Wolf-Hirschhorn syndrome (WHS) is a subtelomeric deletion syndrome affecting the short arm of chromosome 4. The main clinical features are a typical craniofacial appearance, growth deficiency, developmental delays, and seizures. Previous genotype-phenotype correlation analyses showed some candidate regions for each cl...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12318
更新日期:2019-09-01 00:00:00
abstract::Microdeletion of 2q31 involving the HOXD gene cluster is a rare syndrome. The deletion of the HOXD gene cluster is thought to result in skeletal anomalies in these patients. HOX genes encode highly conserved transcription factors that control cell fate and the regional identities along the primary body and limb axes. ...
journal_title:Congenital anomalies
pub_type:
doi:10.1111/cga.12212
更新日期:2017-11-01 00:00:00
abstract::Galectins are β-galactoside-binding lectins that participate in a wide range of biological processes. Galectins are distributed both inside and outside cells and are believed to have roles in both intra- and extracellular milieus. One of the well-recognized functions of galectins is stabilization of glycoproteins on t...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12055
更新日期:2014-05-01 00:00:00
abstract::Thoracolumbar supernumerary ribs (TSRs) are classified as less severe skeletal anomalies in rat developmental toxicity studies, although their incidence is relatively high in rodent studies. To investigate the characteristics of the critical window for chemically-induced TSR, in this study, rats were administered 5-fl...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12320
更新日期:2019-11-01 00:00:00
abstract::Craniofrontonasal syndrome (CFNS) is characterized by craniosynostosis, hypertelorism, a broad nasal tip and occasionally cleft lip and palate, and is caused by a mutation in the ephrin-B1 gene (EFNB1). The study of naturally occurring human EFNB1 mutations offers a unique opportunity to better define the critical por...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2006.00140.x
更新日期:2007-03-01 00:00:00
abstract::Lissencephaly is one of the central nervous system anomalies of Miller-Dieker Syndrome (MDS). Fetuses with lissencephaly have an abnormal smooth brain with fewer folds and grooves that will be detected by ultrasounds or fetal magnetic resonance imaging (MRI) after 30 weeks of gestation. We report a fetus with lissence...
journal_title:Congenital anomalies
pub_type:
doi:10.1111/cga.12193
更新日期:2017-03-01 00:00:00
abstract::Maternal diabetes mellitus is associated with increased fetal teratogenesis, including cardiovascular defects. Non-specific maternal immune stimulation with Freund's complete adjuvant (FCA) or interferon gamma (IFNgamma) has been associated with protection against birth malformations. Using a diabetic mouse model, lat...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2008.00213.x
更新日期:2009-03-01 00:00:00
abstract::With the high cost and the long-term assessment of developmental toxicity testing in mammals, the vertebrate zebrafish has become a useful alternative model organism for high-throughput developmental toxicity testing. Zebrafish is also very favorable for the 3R perspective in toxicology; however, the methodologies use...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12142
更新日期:2016-01-01 00:00:00
abstract::Choroid plexus, a fetal organ developing approximately from the sixth week of gestation, plays a fundamental role in developing fetal brain organization. As relatively little is known about the relationship between anomalies of choroid plexuses structure and their role in brain function, we examined cases of bifid cho...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12006
更新日期:2013-06-01 00:00:00
abstract::The WDR62 gene encodes a scaffold protein of the c-Jun N-terminal kinase (JNK) pathway. It plays a critical role in laying out various cellular layers in the cerebral cortex during embryogenesis, and hence the dramatic clinical features resulting from WDR62 mutations. These mutations are associated with autosomal rece...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12144
更新日期:2016-05-01 00:00:00
abstract::We describe a novel de novo heterozygous variant in SYNGAP1 (c.1741C>T, p.R581W), identified through targeted resequencing in an 8-year-old boy with intellectual disability, autism spectrum disorder, distinctive dysmorphic features, and no seizures. Our data strongly suggest that the SYNGAP1 variant is causative of in...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12273
更新日期:2018-11-01 00:00:00
abstract::For the last 25 years, it has been proven that the occurrence or recurrence of neural tube defects can be prevented with the administration of folic acid before and early pregnancy. At present, over 80 countries in the world, except Japan, have mandated the fortification of wheat flour and/or rice with folic acid, whi...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12227
更新日期:2017-09-01 00:00:00
abstract::Many new microdeletion syndromes have been characterized in the past decade, including 2p15-p16.1 microdeletion syndrome. More than 10 patients with this syndrome have been described. Recently, we encountered two additional patients with 2p15-p16.1 microdeletion syndrome. All patients showed variable degrees of intell...
journal_title:Congenital anomalies
pub_type: 杂志文章,评审
doi:10.1111/cga.12112
更新日期:2015-08-01 00:00:00
abstract::Omphalocele-exstrophy of the bladder (cloaca)-imperforate anus-spinal defects (OEIS) complex describes a rare grouping of more commonly occurring component malformations. We report two cases of OEIS complex diagnosed prenatally by ultrasound and magnetic resonance imaging (MRI). In both cases, OEIS complex was suspect...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2011.00342.x
更新日期:2012-09-01 00:00:00
abstract::We determined the overall prevalence of typical orofacial clefts and the potential risks for nonsyndromic cleft lip with or without cleft palate in a university hospital from West México. For the prevalence, 227 liveborn infants with typical orofacial clefts were included from a total of 81,193 births occurred during ...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/cga.12276
更新日期:2018-07-01 00:00:00
abstract::Non-invasive prenatal diagnostic methods posing no danger to the embryo have been desired for many years in the field of prenatal medicine. We are in the process of improving the lectin method that we developed for recovering fetus-derived nucleated red blood cells (NRBC) in the maternal peripheral blood. We previousl...
journal_title:Congenital anomalies
pub_type: 杂志文章
doi:10.1111/j.1741-4520.2004.00040.x
更新日期:2004-12-01 00:00:00