Presentation
This karyotype, present in between 1-2 per thousand male births, is variable in its presentation, and frequently passes unnoticed; the usual clinical presentation is with hypogonadism or infertility. [diapedia.org]
Thus, we present a case of CADASIL with psychotic symptoms at a tertiary-care psychiatric hospital. [gpsych.bmj.com]
Six of them presented mutations of the SRCAP gene. [content.sciendo.com]
Cataracts may also be present among other disorders of iron metabolism. [disorders.eyes.arizona.edu]
Hematological
- Hemophilia A
Explain why X-linked disorders like colorblindness, hemophilia, and muscular dystrophy are carried by females BUT show up more frequently in MALES. [quizlet.com]
Hemophilia A (Factor VIII Deficiency) Hemophilia X-Linked Recessive. Factor VIII deficiency Hemorrhage, hematuria, hemarthroses. Prolonged PTT. Hemophilia B (Factor IX Deficiency) Hemophilia X-Linked Recessive. Factor IX deficiency. [kumc.edu]
Hemophilia is a group of diseases in which blood does not clot normally. Factors in blood are involved in clotting. Hemophiliacs lacking the normal Factor VIII are said to have Hemophilia A, the most common form. [www2.estrellamountain.edu]
Hemophilia A, the most widespread form of hemophilia, results from a mutation in the gene encoding clotting factor VIII. [britannica.com]
An example of a sex-linked disorder is hemophilia. This disease is caused by a defective gene on the X chromosome. What are multifactorial disorders? Multifactorial disorders are caused by a combination of factors. [acog.org]
Entire Body System
- Short Stature
short stature ( E45 ) pituitary short stature ( E23.0 ) progeria ( E34.8 ) renal short stature ( N25.0 ) Russell-Silver syndrome ( Q87.1 ) short-limbed stature with immunodeficiency ( D82.2 ) short stature in specific dysmorphic syndromes - code to syndrome [icd10data.com]
STATURE, AND IMPAIRED GLUCOSE METABOLISM 1 MICROCEPHALY, SHORT STATURE, AND IMPAIRED GLUCOSE METABOLISM 2 MICROCEPHALY, SHORT STATURE, AND POLYMICROGYRIA WITH OR WITHOUT SEIZURES Microdontia Hypodontia Short Stature Microphthalmia and Mental Deficiency [rgd.mcw.edu]
Short stature is common and the joints may have limited motion. Dislocation of the radial heads is seen rarely while radioulnar synostosis has been seen in a few individuals. Postnatal short stature is common. Seizures often occur. [disorders.eyes.arizona.edu]
ACRDYS1 is caused by heterozygous mutation in the PRKAR1A gene and is characterized by short stature, severe brachydactyly, facial dysostosis, nasal hypoplasia, advanced bone age, obesity and multiple hormone resistance. [iofbonehealth.org]
Additional MRD21 features include short stature, microcephaly, and developmental delay. Acronym MRD21 Keywords Disclaimer Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. [uniprot.org]
- Anemia
Fanconi Anemia Autosomal Recessive congenital pancytopenia. Normocytic anemia with neutropenia. Short stature, microcephaly, hypogenitalism, strabismus, anomalies of the thumbs, radii, and kidneys, mental retardation, and microphthalmia. [kumc.edu]
( D61.09 ) gout ( M1A.-, M10.- ) orotaciduric anemia ( D53.0 ) progeria ( E34.8 ) Werner's syndrome ( E34.8 ) xeroderma pigmentosum ( Q82.1 ) ICD-10-CM Diagnosis Code E79 Disorders of purine and pyrimidine metabolism 2016 2017 2018 2019 Non-Billable/ [icd10data.com]
Sickle-cell anemia is an autosomal recessive we have discussed in other sections. Nine-percent of US blacks are heterozygous, while 0.2% are homozygous recessive. [www2.estrellamountain.edu]
The chance of such a couple producing a child with sickle cell anemia is one out of four for each pregnancy. [britannica.com]
Mutation of a putative mitochondrial iron transporter gene (ABC7) in X-linked sideroblastic anemia and ataxia (XLSA/A). [mitomap.org]
- Weakness
Saccadic smooth pursuit Nonprogressive cerebellar ataxia Arachnodactyly Pachygyria Abnormality of vision Hypoplasia of the brainstem Toe walking Cortical gyral simplification Gaze-evoked nystagmus Proximal muscle weakness Retinopathy Muscular hypotonia [mendelian.co]
Both forms are associated with muscle weakness and cognitive dysfunction; insulin resistance is increased in both. [diapedia.org]
Some common symptoms include rapid heartbeat, shortness of breath, changes in eyes and vision, tremors and muscle weakness, anxiety, difficulty concentrating and insomnia. [tsbvi.edu]
Patients manifest with ptosis and ophthalmoplegia, easy fatiguability, and facial, bulbar, neck and limb weakness, or respiratory insufficiency. [reviewofophthalmology.com]
Characterized by muscle weakness and myotonia (slow relaxation of the muscles after contraction) which progresses slowly over time. Can also affect other organs such as the eyes, heart, and brain. [hihg.med.miami.edu]
- Feeding Difficulties
Feeding difficulties have been reported while anal atresia is present in about half of patients. [disorders.eyes.arizona.edu]
In the first year of life, he presented feeding difficulties and failure to thrive. Clinical examination at 7 years old revealed: a height of 107 cm [ Figure 1 ). [content.sciendo.com]
A rare inherited growth disorder characterized by growth retardation, feeding difficulties, failure to thrive, facial abnormalities and asymmetry of limbs. Camptodactyly or clinodactyly may be present. [icd10data.com]
Brain malformations cause abnormal muscle tone, spasticity or hypotonia, developmental delay, seizures severe intellectual disability, and feeding difficulties. [intechopen.com]
[…] translation 15q22.31 AR LS [lxx] MTO1 614667 tRNA modification 6q13 AR Cardiomyopathy [lxxi] TRMT5 611023 mitochondrial tRNA methylation 14q23.1 AR Cardiomyopathy/exercise intolerance [lxxii] TRMT10C 615423 TRNA Methyltransferase 3q12.3 AR Hypotonia, feeding [mitomap.org]
- Lymphedema
It differs from the microcephaly, lymphedema, chorioretinopathy syndrome ( 152950 ) in which retinal folds, ptosis and lymphedema are associated with a typical facial phenotype. [disorders.eyes.arizona.edu]
Lymphedema has been postulated as the cause of CVG in patients with Turner syndrome (4, 26, 27) There have been reported cases of Klinefelter syndrome with CVG, the suggested mechanism does not include lymphedema (28). [scielo.org.co]
Lymphedema-distichiasis is an autosomal dominant disorder caused by mutations in the FOXC2 gene (16q24.1), and presents as distichiasis of upper and lower eyelids and ptosis, with lymphedema of the limbs. [reviewofophthalmology.com]
[…] retardation- 7 AD 11 EFTUD2 603892 Mandibulofacial dysostosis, Guion-Almeida type AD 26 IER3IP1 609382 Microcephaly, epilepsy, and diabetes syndrome AR 2 KATNB1 602703 lissencephaly 6 AR 2 KIF11 148760 Microcephaly with or without chorioretinopathy, lymphedema [centogene.com]
Lissencephaly Type III and Bone Dysplasia Loeys-Dietz syndrome + Lopes Gorlin Syndrome Loucks-Innes Syndrome Lowry Maclean syndrome Lowry Wood Syndrome Lubani Al Saleh Teebi Syndrome Lung Agenesis + Luscan-Lumish syndrome Lutz Richner Landolt Syndrome Lymphedema [rgd.mcw.edu]
Musculoskeletal
- Muscle Hypotonia
A mutation in the FAM36A gene, the human ortholog of COX20, impairs cytochrome c oxidase assembly and is associated with ataxia and muscle hypotonia. [mitomap.org]
Face, Head & Neck
- Thin Lips
lips [ 9 ]. [content.sciendo.com]
Urogenital
- Incontinence
Case history A 32-year-old man presented with suspiciousness, fearfulness, odd ritualistic behaviour, decline in academic performance, self-care and social functioning and occasionally complaint of urinary and faecal incontinence, with symptoms starting [gpsych.bmj.com]
In late stages of HD, behavior problems are gradually lessened; motor disability becomes severe and the individual is often totally dependent, mute, and incontinent. [hihg.med.miami.edu]
Vacuolated lymphocytes Oligosacchariduria Aspartylglucosaminuria Short stature Cataract Gait disturbance Absent speech Cerebellar hypoplasia Coarse facial features Growth delay Polymicrogyria Status epilepticus Generalized myoclonic seizures Urinary incontinence [mendelian.co]
Neurologic
- Slurred Speech
[…] affective disorder Abnormality of movement EEG with centrotemporal focal spike waves Neonatal hypotonia Optic disc pallor Very long chain fatty acid accumulation Abnormality of phytanic acid metabolism Abnormality of eye movement Horizontal nystagmus Slurred [mendelian.co]
Workup
Many will go undiagnosed until maturity as adults undergoing infertility workups. Fetuses are typically identified during amniocentesis performed for advanced maternal age. They are not normally identified because of an abnormal ultrasound finding. [chw.org]
[…] performed. [3] If there is an affected parent it is unlikely that the child has a deletion extending to WT1, although rare cases have been reported. [3] Tests Table 1: Genetic Tests for Aniridia by Phenotype and Family history [3] Testing Strategy Clinical Workup [eyewiki.aao.org]
Treatment
Treatment Treatment Options: Treatment is supportive. Low vision aids may be helpful. [disorders.eyes.arizona.edu]
Other: Standard Standard Other Name: Treatment of hypertension, cyst infections and flank pain Active Comparator: 2 Sirolimus plus Standard Treatment Drug: Sirolimus Standard plus Sirolimus Other Name: Rapamune (R) Primary Outcome Measures : renal volume [clinicaltrials.gov]
[…] and Quality of Life in Patients With Alzheimer's Disease and Behavioural and Psychological Symptoms of Dementia (BPSD) Unknown status NCT00626613 Phase 4 Risperdal,reminyl 9 Study of Escitalopram Versus Placebo in the Treatment of Depressive Syndrome [malacards.org]
Overview A diagnosis of intellectual disability (ID) carries with it certain unique treatment needs that must be understood and addressed. [emedicine.medscape.com]
Prognosis
The development in the child after surgery appeared to be normal, indicating that all children with the cloverleaf skull abnormality do not have a dire prognosis. [genome.jp]
Penetrating keratoplasty (PK) may be considered; however, PK alone has a poor prognosis, probably due to the primary limbal stem cell insufficiency. [eyewiki.aao.org]
Common Syndromes Associated with Mental Retardation Diagnosis Incidence Etiology, including inheritance Clinical manifestations and early recognition Associated conditions Diagnostic evaluation* Prognosis Special considerations Down syndrome 1 in 600 [aafp.org]
Family studies have indicated that families may develop problems in response to a child's illness as well as affecting the child's prognosis for recovery. [minddisorders.com]
Etiology
Etiology : Autosomal dominant inheritance in some cases [6]. Pathogenesis : unknown. [sonoworld.com]
The secondary etiology is due to underlying diseases, with no mental deficiency. [scielo.org.co]
The consequences often are moderate to profound MR of unknown etiology. [scielo.br]
Etiology A number of environmental, genetic or multiple factors can cause mental retardation. [aafp.org]
Epidemiology
F - 47, XYY Epidemiology: 1 / 1 000 male births. [atlasgeneticsoncology.org]
However little data exists about the epidemiological relevance of familial MR. [scielo.br]
The discussion covers the phenotype spectrum, epidemiology, mode of inheritance, pathogenesis, and clinical profile of each condition, all of which is accompanied by a wealth of illustrations. [books.google.es]
Definition and Epidemiology Polydipsia and polyuria with dilute urine, hypernatremia, and dehydration are the hallmarks of diabetes insipidus in infants and children. [pedsinreview.aappublications.org]
Temtamy SA, Kandil MR, Demerdash AM, Hassan WA, Meguid NA, Afifi HH: An epidemiological/genetic study of mental subnormality in Assiut Governorate, Egypt. Clin Genet 1994;46:347–351. [karger.com]
Pathophysiology
Neurotic symptoms are reported to be mainly associated with this syndrome. 3 The exact pathophysiological mechanism underlying the association of psychotic symptoms with CADASIL syndrome is not clearly understood. [gpsych.bmj.com]
Pathophysiology Primary Form: Folds are symmetrical, with normal histology or hypertrophy and hyperplasia of connective tissue or epidermal appendages (25); it develops mainly in puberty. [scielo.org.co]
: Genetics and pathophysiology of mental retardation. Eur J Hum Genet. 2006; 14 (6): 701–713. PubMed Abstract | Publisher Full Text 10. Raymond FL, Tarpey P: The genetics of mental retardation. Hum Mol Genet. 2006; 15 (Spec No 2): R110–6. [f1000research.com]
The pathophysiology of fragile x syndrome. Annu Rev Genomics Hum Genet 2007; 8:109-129. [ Links ] 12. Yan QJ, Rammal M, Tranfaglia M, Bauchwitz RP. Suppression of two major Fragile X Syndrome mouse model phenotypes by the mGluR5 antagonist MPEP. [scielo.br]
Prevention
Newborn screening and immediate treatment for PKU and hyperthyroidism can usually catch these disorders early enough to prevent retardation. Good prenatal care can also help prevent retardation. [medical-dictionary.thefreedictionary.com]
It has been observed heterozygous mutations located in the secretion signal of the SOST gene in two CDD patients and demonstrated that these SOST mutations prevent sclerostin secretion resulting in increased bone formation. [iofbonehealth.org]
Increasingly, a lifelong low-phenylalanine diet is recommended to prevent later deterioration in cognitive functions. [emedicine.medscape.com]