Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0025362 (mental retardation)
 15,878 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Four males, the sons of 2 sisters, apparently have a new syndrome of mental retardation, seizures and psoriasis. Due to the relationship between the affected males we propose the inheritance to be X-linked recessive although cosegregation of two separate disorders may be occurring. Psoriasis has never been reported as a monogenic disorder. Results of cytogenetic studies, including fra (X) and high-resolution prometaphase analysis, were negative. Steroid sulfatase activities of cultured fibroblasts from 2 surviving affected males were normal. The results of HLA typing of all available relatives did not indicate a strong association between the skin disorder and certain HLA antigens. A healthy sister, who may be heterozygous carrier of the mutant X chromosome, decided on termination of 3 successive pregnancies after prenatal male sex determinations. Her fourth pregnancy with a female fetus is ongoing.
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PMID:X-linked mental retardation associated with psoriasis: a new syndrome? 317 53

We encountered two patients with a congenital migratory ichthyosiform dermatosis, retinal colobomas, conductive hearing loss, seizures, mental retardation, and similar facial features. The results of electron microscopic studies performed on skin biopsy specimens from the patients differed significantly from those of previously reported cases of ichthyosiform dermatoses with associated neurologic and ophthalmologic abnormalities; they appear to represent a new neuroectodermal syndrome.
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PMID:Congenital migratory ichthyosiform dermatosis with neurologic and ophthalmologic abnormalities. 403 40

A large family is reported in which at least four males are, or have been, affected with an unusual form of mental retardation associated with short stature, obesity, hypogonadism and skin disease. Investigations in the proband indicate that the hypogonadism is primary rather than secondary, and that the skin involvement is ichthyosiform. The mode of inheritance is entirely consistent with sex-linkage.
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PMID:Sex-linked mental retardation, short stature, obesity and hypogonadism: report of a family. 717 26

Two monozygots twins had porokeratosis Mibelli and a deep mental retardation. The exploration of this nervous components is negative. The porokeratosis in one twin had in several sites the aspect of a skin's horn. The demonstration of the monozygotis was made by the same repartition of 16 characters (HLA, blood groups). The boys had the same aspect and the same skin disease. The twin method is discussed. The existence of the porokeratosis of Mibelli in two monozygotic twins is an argument for the genetic mechanism of the disease. The familial cases of porokeratose Mibelli reported by Bataillard, Civatte, Vigne, Bloom, have consistent features for an dominant autosomic transmission with variations in the penetrance and the expressivity of the skin disease.
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PMID:[Porokeratosis of Mibelli in two monozygotic twins (author's transl)]. 719 80

"Incontinentia pigmenti" its a rare familial disorder of unknown origin characterized by a distinctive dermatosis, almost exclusive occurrence in females, and developmental abnormalities that affect hair, eyes, teeth and central nervous system. 30.5% of cases described in the world literature had notable C.N.S. disease. Authors report three cases of I.P. in pathognomonic pigmented stage and with severe neurologic involvement. In two cases pneumoencephalography show severe cerebral cortical atrophy. Patients had motor and mental retardation, abnormal E.E.G. and one of them a West syndrome. The third case died at the age of three months, and neuropathological examination of the brain revealed porencephalic lesions.
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PMID:[Neurologic involvement in "incontinentia pigmenti" (Bloch-Sulzberger syndrome). Report of three cases (author's transl)]. 728 89

A new neuroectodermal syndrome (designated CHIME syndrome) was described in 1983 with a total of four patients reported, it is presumed to be an autosomal recessive disorder because of recurrence in sibs. The main features include ocular colobomas, congenital heart disease, early onset migratory ichthyosiform dermatosis, mental retardation, conductive hearing loss, seizures, and typical facial features. We report a fifth child with the condition, confirming the unique nature of the condition. Long term follow up information on this patient, as well as the previously described cases, provides information regarding the outcome for these patients, which includes general good health, severe mental retardation, seizures that worsen after puberty, conductive hearing loss, and chronic migratory ichthyosiform skin rash without scarring.
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PMID:Neuroectodermal (CHIME) syndrome: an additional case with long term follow up of all reported cases. 766 99

Darier's disease is a rare autosomal dominant skin disorder in which there is abnormal adhesion between keratinocytes. It appears to be associated with an increased prevalence of neuropsychiatric disorders including mental retardation and epilepsy. In addition we have previously reported a family in which major affective disorder cosegregates with Darier's disease. In the present study we have localized the gene for Darier's disease to chromosome 12q23-q24.1 by linkage analysis in five British pedigrees. We obtained a maximum two point lod score of 4.29 with marker D12S84 at zero recombination fraction. All five families showed evidence of linkage between the disease gene and markers in this region. Subsequent identification of the Darier's disease gene will provide insights into normal mechanisms of cell adhesion and may be of importance in the genetic investigation of neuropsychiatric disorders as well as elucidating the pathogenesis of Darier's disease itself.
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PMID:The gene for Darier's disease maps to chromosome 12q23-q24.1. 828 Nov 34

Prolidase deficiency is a rare hereditary disorder with a wide spectrum of clinical manifestations including skin ulcers, eczematous eruptions, characteristic facies, mental retardation, splenomegaly, and susceptibility to infections. We report two new cases of prolidase deficiency. Our patients had the typical manifestations of prolidase deficiency. One also had lupus erythematosus. Prolidase activity was either normal or half-normal in all family members. The skin disease in our patients did not respond to topical glycine/proline ointment or to oral vitamin C.
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PMID:Prolidase deficiency: a multisystemic hereditary disorder. 840 17

The "CHIME" syndrome (MIM#280000) is a rare neuroectodermal disorder comprised of Colobomas of the eye, Heart defects, Ichthyosiform dermatosis, Mental retardation, and Ear defects. We report on the sixth child with this syndrome and the first of these to develop acute lymphoblastic leukemia at age 4 1/2 years. Her major problems included a migratory ichthyosiform dermatosis, multiple skin infections and infestations, bilateral retinal coloboma, developmental delay, seizures, infantile macrosomia, facial anomalies, a duplicated renal collecting system, and conductive hearing loss. Histologic examination of the skin demonstrated findings of an epidermal nevus with deep rete pegs, hyperkeratosis, and a markedly increased granular layer. The cause of the CHIME syndrome is unknown, but the disorder is easily recognized because of the striking phenotype. The diagnosis is important to make because of the potential for associated congenital heart disease, neurologic compromise, possible autosomal recessive inheritance, and possible association with malignancy.
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PMID:Acute lymphoblastic leukemia in a child with the CHIME neuroectodermal dysplasia syndrome. 929 69

Darier disease (DD) is an uncommon genetic skin disorder, which begins in adolescence or early adult life. This disease is observed more often among men and where the disease course is more severe. Many dermatologists observe in patients with DD neuropsychiatric disorders: psychosis, depression and rare mental retardation. We present familial DD in a mother and her two sons. Men demonstrated a typical onset and course of the disease. The onset of the disease in the 52nd year of age and the skin lesions (more characteristic for the Lyell disease) which occurred suddenly in women, were atypical. Besides skin lesions, mental retardation with a various degree of intensity was observed in all three patients.
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PMID:[Familial Darier disease and mental retardation in mother and her two sons]. 1271 28


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