The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0176:pdafso>2.3.co;2
R P Strauss, J U Davis
{"title":"Prenatal detection and fetal surgery of clefts and craniofacial abnormalities in humans: social and ethical issues.","authors":"R P Strauss, J U Davis","doi":"10.1597/1545-1569(1990)027<0176:pdafso>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0176:pdafso>2.3.co;2","url":null,"abstract":"<p><p>Sophisticated prenatal diagnostic imaging has facilitated the progression of fetal surgery from the experimental possibility to a clinical therapy for several life-threatening congenital conditions. Guidelines for such fetal surgery include the expectation that the child will be reasonably healthy as a result and that the in utero approach will improve the outcome or is safer than postnatal intervention. Prenatal ultrasound detection of craniofacial anomalies is now common. Reports of experimental cleft repairs in animal fetuses suggest advantages including diminished scarring, improved health and nursing. While fetal craniofacial surgery has not been attempted in humans, speculations exist about the psychological and social benefits of being born with a repaired defect. Fetal surgery is an emerging technology that may alter experimentation, cleft treatment, and the allocation of scarce resources. This paper examines the social and ethical implications of prenatal diagnosis and fetal surgery, focusing on fetal/maternal rights, and clinical decision making.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"176-82; discussion 182-3"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0176:pdafso>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13490013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0110:eaotma>2.3.co;2
M Bronner-Fraser
{"title":"Experimental analyses of the migration and cell lineage of avian neural crest cells.","authors":"M Bronner-Fraser","doi":"10.1597/1545-1569(1990)027<0110:eaotma>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0110:eaotma>2.3.co;2","url":null,"abstract":"<p><p>Neural crest cells migrate extensively during embryonic development and give rise to numerous and varied derivatives. Two important and unresolved questions are: what controls the migration and differentiation of these cells? This review summarizes recent experiments that address these issues. Specifically, this overview describes the pathways of neural crest cell migration, the functional importance of interactions between neural crest cells and the extracellular matrix for their movement, and studies on neural crest cell lineage in vivo by labelling individual precursor cells.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"110-20"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0110:eaotma>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13340700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0131:xcgiit>2.3.co;2
G E Moore, A Ivens, R Newton, M A Balacs, D J Henderson, O Jensson
{"title":"X chromosome genes involved in the regulation of facial clefting and spina bifida.","authors":"G E Moore, A Ivens, R Newton, M A Balacs, D J Henderson, O Jensson","doi":"10.1597/1545-1569(1990)027<0131:xcgiit>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0131:xcgiit>2.3.co;2","url":null,"abstract":"<p><p>Congenital malformations such as cleft palate and spina bifida may be multifactorial in etiology. They occur as a result of both environmental agents and defective genes. Consequently it is both practically and intellectually difficult to study their effects experimentally. The advent of molecular biology technology has enabled many genes on the human chromosome to be mapped and some to be cloned. Using these techniques and families that display common congenital malformations inherited in a purely genetic manner, the genetic defects can be separated from the environmental components. This report documents our studies of several families that have cleft palate or spina bifida as X-linked disorders. Their phenotype is similar to the more common multifactorial cases but segregates as a single gene in an X-linked fashion. Localization of these genes using different X chromosome DNA probes and linkage analysis is the first step towards our understanding of the genetic contribution to the etiology of congenital malformations.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"131-5"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0131:xcgiit>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13340702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0155:tosocp>2.3.co;2
D M Albert, J Garrett, B Specker, M Ho
{"title":"The otologic significance of cleft palate in a Sri Lankan population.","authors":"D M Albert, J Garrett, B Specker, M Ho","doi":"10.1597/1545-1569(1990)027<0155:tosocp>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0155:tosocp>2.3.co;2","url":null,"abstract":"<p><p>The otologic findings from 197 subjects with repaired and unrepaired clefts and 121 noncleft controls are presented. All data were collected in Sri Lanka during a 3-week period attached to the Sri Lanka Project in 1986. Subjects were examined otoscopically and also tested audiometrically if they were able to perform a pure-tone audiogram, a performance test, or a distraction test. Subjects with clefts of the palate were found to have fewer otoscopically normal ears than the controls. A comparison between subjects with unrepaired and repaired palates revealed a similar rate of otoscopically normal ears in subjects older than 10 years of age. Comparisons for younger ages could not be performed because of a lack of subjects less than 10 years of age who had repaired palates. The impedance data were used to verify the accuracy of otoscopy in detecting effusion.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"155-61; discussion 174-5"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0155:tosocp>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13490010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0101:ridecd>2.3.co;2
H C Slavkin
{"title":"Regulatory issues during early craniofacial development: a summary.","authors":"H C Slavkin","doi":"10.1597/1545-1569(1990)027<0101:ridecd>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0101:ridecd>2.3.co;2","url":null,"abstract":"<p><p>During neurulation, craniofacial structures derived from the first branchial arch are determined to become maxillary, mandibular, and tongue formations. At least four interdependent developmental processes become integrated: (1) allocation of cells into specific lineages (perhaps during gastrulation); (2) regulation of time-dependent differential regulatory and structural gene expressions; (3) positional information resulting in pattern formations; and (4) morphogenesis, histogenesis, and cytodifferentiation. This review highlights progress toward understanding when, where, and how the one-dimensional genetic information encoded within DNA (deoxyribonucleic acid) is sequentially expressed into the embryonic craniofacial complex. Specifically, how might intrinsic autocrine and/or paracrine regulatory factors control the developmental program for early first branchial arch morphogenesis, histogenesis, and cytodifferentiation. Rules learned from normal development should be useful toward advancing the diagnosis, treatment, prognosis, and prevention of congenital craniofacial malformations.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"101-9"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0101:ridecd>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13340699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0136:tnrbut>2.3.co;2
M C Jones
{"title":"The neurocristopathies: reinterpretation based upon the mechanism of abnormal morphogenesis.","authors":"M C Jones","doi":"10.1597/1545-1569(1990)027<0136:tnrbut>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0136:tnrbut>2.3.co;2","url":null,"abstract":"<p><p>This review sets forth a broadened interpretation of the neurocristopathies based on the current understanding of the role of neural crest cells in normal development. Two general types of cristopathies are defined predicated on the abnormal mechanism involved in production of the defect or condition. Defects and disorders which constitute the originally defined neurocristopathies including pheochromocytoma, neurofibromatosis, and the multiple endocrine adenomatoses are best explained as dysplasias of neural crest derivatives. Affected individuals rarely exhibit true malformation of structure but do carry a lifetime risk for disordered growth of crest derived tissue. On the other hand, defects and disorders which derive from migrational abnormalities primarily of cranial neural crest cells such as frontonasal dysplasia, the DiGeorge sequence, and Waardenberg syndrome represent true malformations. The spectrum of involvement is usually definable at the time of diagnosis and disordered growth of crest derived tissue does not occur. The clinical implications of this distinction are discussed.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"136-40"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0136:tnrbut>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13340703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0184:aotmic>2.3.co;2
K Mølsted, E Dahl
{"title":"Asymmetry of the maxilla in children with complete unilateral cleft lip and palate.","authors":"K Mølsted, E Dahl","doi":"10.1597/1545-1569(1990)027<0184:aotmic>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0184:aotmic>2.3.co;2","url":null,"abstract":"<p><p>Craniofacial asymmetry was analyzed in 31 children with unilateral cleft lip and palate (UCLP) and compared to a group of 24 children with incomplete clefts of the lip (CL). Symmetry was evaluated from 32 variables on posteroanterior cephalometric radiographs. Two types of asymmetry were identified: In the first, there was a positional deviation and a change of arch shape of the maxillary segment on the cleft side. The basal maxillary width was similar in the two groups. At the dentoalveolar level a decrease in width was localized to the cleft side in the UCLP group. Maxillary height of the cleft segment was reduced. The second type was related to the anterior part of the maxilla and the nasal septum. The inferior border of the bony part of the nasal septum deviated towards the cleft side. The anterior nasal spine and the midpoint between the upper central incisors deviated toward the noncleft side, but to a different degree indicating a vertical tilting of the premaxillary region.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"184-90; discussion 190-2"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0184:aotmic>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13490014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Incidence and prevalence of cleft lip and palate.","authors":"R B Sayetta","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"203"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13526768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0095:eiicb>2.3.co;2
B K Hall
{"title":"Evolutionary issues in craniofacial biology.","authors":"B K Hall","doi":"10.1597/1545-1569(1990)027<0095:eiicb>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0095:eiicb>2.3.co;2","url":null,"abstract":"<p><p>This overview discusses evolution in the context of craniofacial development and developmental processes. It begins with a discussion of the origins of the craniofacial tissues in the dentine and bone of the dermal denticles of the Ordovician jawless vertebrates, followed by a brief discussion of the mechanisms responsible for the evolution of the jaws and the origin of vertebrate dentition. Then the unique neural crest cell origin of the craniofacial skeletogenic and odontogenic tissues is discussed with emphasis on the constancy of rostrocaudal polarization of the skeletogenic cranial neural crest. Given this constancy, the variation in the craniofacial region that occurs across the vertebrates must arise because of epigenetic interactions that evoke the differentiation of craniofacial tissues. These are discussed in the context of epigenetic cascades of epithelial-mesenchymal interactions and how such epigenetic control has itself evolved. Although several mechanisms are considered, emphasis is placed on variation of the timing of development processes (heterochrony).</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"95-100"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0095:eiicb>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13340704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Cleft palate journalPub Date : 1990-04-01DOI: 10.1597/1545-1569(1990)027<0162:srflps>2.3.co;2
D A Sell, P Grunwell
{"title":"Speech results following late palatal surgery in previously unoperated Sri Lankan adolescents with cleft palate.","authors":"D A Sell, P Grunwell","doi":"10.1597/1545-1569(1990)027<0162:srflps>2.3.co;2","DOIUrl":"https://doi.org/10.1597/1545-1569(1990)027<0162:srflps>2.3.co;2","url":null,"abstract":"<p><p>The speech of 18 Sinhala speaking patients over 11 years of age with previously unrepaired palatal clefts is presented preoperatively, 8 months postoperatively, and after two brief courses of speech therapy (8 and 12 months postoperatively). Speech was usually severely disordered in the unoperated patient. The postoperative results show that speech often remains disordered following surgery, but there is the potential for change in some patients when supported by intensive goal directed therapy.</p>","PeriodicalId":76622,"journal":{"name":"The Cleft palate journal","volume":"27 2","pages":"162-8; discussion 174-5"},"PeriodicalIF":0.0,"publicationDate":"1990-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1597/1545-1569(1990)027<0162:srflps>2.3.co;2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13490011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}