Gene/Protein Disease Symptom Drug Enzyme Compound
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 11,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Rubinstein-Taybi syndrome is a rare multiple congenital anomaly (MCA) syndrome comprising mental and growth retardation, broad thumbs and big toes, and unusual face. The classical appearance is easy to recognize. It includes downslant of the palpebral fissures, epicanthal folds, ptosis, strabismus, highly arched palate, and apparently low-set angulated ears with thickened helices. The nose has a beaked appearance, broad fleshy bridge, deviated septum that is long, protruding below the level of the nasal alae with an associated short columella. Since the typical facial phenotype may not be obvious until late childhood, I have evaluated more than 40 cases of Rubinstein-Taybi syndrome, seen at varying ages from the newborn period through infancy, childhood, and adulthood, in order to learn more about the early facial appearance.
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PMID:Rubinstein-Taybi syndrome: the changing face. 211 76

Rubinstein-Taybi syndrome (RTS) is a rare multiple congenital anomaly syndrome comprising mental and growth retardation, broad thumbs and great toes, and an unusual face. The classical facial appearance is well-established, striking and easy to recognize. It includes downslant of the palpebral fissures, epicanthic folds, ptosis, strabismus, highly arched palate, simple ears and a small mouth. The nose is distinctive with a beaked appearance, broad fleshy bridge, deviated septum and short low columella. Previous studies have documented considerable change in this facial phenotype with time. In this study, we evaluated 31 individuals with RTS from Great Britain and The Netherlands. They range in age from 1 to 39 years. Detailed craniofacial measurements were obtained on each subject and composite pattern profiles were compiled. There was remarkable concordance of patterns at all ages from infancy to adulthood. Microcephaly was present consistently. The head was relatively round with head width equal to head length. There was narrowness at the skull base with relative broadening of the minimal frontal diameter and lower facial width. The mouth was small and ears were broad and short. Eyes were wide-spaced in comparison to upper facial width and head circumference. The child under 4 years demonstrated some differences. Width and depth of the upper face exceeded that of the lower face, whereas with increasing age, mandibular dimensions were closer to normal than their maxillary counterparts. Despite these differences, the similarity of the profiles of all age groups seems to belie the phenotypic changes that can be appreciated subjectively. This suggests that major components of the change in appearance are those which have not been assessed in this study, such as palpebral fissure slant, deviation of the nasal bridge, presence of epicanthal folds or ptosis; or for which norms are not available, for example, beaking of the nose, and low nasal septum.
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PMID:Rubinstein-Taybi syndrome: objective evaluation of craniofacial structure. 928 47

Rubinstein-Taybi syndrome is a constellation of clinical findings characterized by mental and motor retardation, broad thumbs and broad first toes, typical facies. Ocular and adnexal abnormalities are quite common and include antimongoloid slant of the palpebral fissures, epicanthal folds, congenital obstruction of the lacrimal excretory system, ptosis, strabismus, congenital cataract and congenital glaucoma. The authors describe the case of a 1-year-old male with the Rubinstein-Taybi syndrome associated with unilateral congenital glaucoma. The case emphasizes the importance of detailed complete ocular examinations in patients with Rubinstein-Taybi syndrome, and also highlights the occurrence of ocular abnormalities rarely associated with this disease.
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PMID:[Goniodysgenesis associated with Rubinstein-Taybi syndrome]. 1093 97

The introduction of molecular karyotyping technologies into the diagnostic work-up of patients with congenital disorders permitted the identification and delineation of novel microdeletion and microduplication syndromes. Interstitial 16p13.3 duplication, encompassing the CREBBP gene, which is mutated or deleted in the Rubinstein-Taybi syndrome, have been proposed to cause a recognisable syndrome with variable intellectual disability, normal growth, mild facial dysmorphism, mild anomalies of the extremities, and occasional findings such as developmental defects of the heart, genitalia, palate or the eyes. We here report the phenotypic and genotypic delineation of 9 patients carrying a submicroscopic 16p13.3 duplication, including the smallest 16p13.3 duplication reported so far. Careful clinical assessment confirms the distinctive clinical phenotype and also defines frequent associated features : marked speech problems, frequent ocular region involvement with upslanting of the eyes, narrow palpebral fissures, ptosis and strabismus, frequent proximal implantation of thumbs, cleft palate/bifid uvula and inguinal hernia. It also confirms that CREBBP is the critical gene involved in the duplication 16p13.3 syndrome.
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PMID:Duplication 16p13.3 and the CREBBP gene: confirmation of the phenotype. 2306 76

In 2016, we described that missense variants in parts of exons 30 and 31 of CREBBP can cause a phenotype that differs from Rubinstein-Taybi syndrome (RSTS). Here we report on another 11 patients with variants in this region of CREBBP (between bp 5,128 and 5,614) and two with variants in the homologous region of EP300. None of the patients show characteristics typical for RSTS. The variants were detected by exome sequencing using a panel for intellectual disability in all but one individual, in whom Sanger sequencing was performed upon clinical recognition of the entity. The main characteristics of the patients are developmental delay (90%), autistic behavior (65%), short stature (42%), and microcephaly (43%). Medical problems include feeding problems (75%), vision (50%), and hearing (54%) impairments, recurrent upper airway infections (42%), and epilepsy (21%). Major malformations are less common except for cryptorchidism (46% of males), and cerebral anomalies (70%). Individuals with variants between bp 5,595 and 5,614 of CREBBP show a specific phenotype (ptosis, telecanthi, short and upslanted palpebral fissures, depressed nasal ridge, short nose, anteverted nares, short columella, and long philtrum). 3D face shape demonstrated resemblance to individuals with a duplication of 16p13.3 (the region that includes CREBBP), possibly indicating a gain of function. The other affected individuals show a less specific phenotype. We conclude that there is now more firm evidence that variants in these specific regions of CREBBP and EP300 result in a phenotype that differs from RSTS, and that this phenotype may be heterogeneous.
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PMID:Further delineation of an entity caused by CREBBP and EP300 mutations but not resembling Rubinstein-Taybi syndrome. 2946 Apr 69