Presentation
The presentation of basic science underlying clinical otorhinolaryngology has been expanded, and molecular mechanisms and genetics of disease are presented. [books.google.com]
Fifty-three loci have presently been reported. The 17 deafness forms for which the genes have been identified are presented. [ommbid.mhmedical.com]
In the presented family, 3 individuals from the paternal lineage have isolated nonsyndromic hearing loss. [karger.com]
As hearing loss may be caused by multiple mutations in multiple genes, the test(s) to be chosen presents a challenge for the geneticist. [audiologyonline.com]
Página 51 - Selective IgA deficiency: presentation of 30 cases and a review of the literature. Página 188 - Dudding, BA, Gorlin, RJ, and Langer, LO: The oto-palato-digital syndrome. [books.google.es]
Entire Body System
- Weakness
This also results in brisk reflexes, extensor plantar reflexes, muscle weakness, and variable bladder disturbances. [en.wikipedia.org]
First, isoleucine-620 could repress glycosylation of threonine-621, and when non-glycosylated, threonine cannot stabilise the triple helix. 21 In addition, because the region is proline-rich and therefore able to form only weak hydrogen bonds, a proline [jmg.bmj.com]
Ears
- Hearing Impairment
Introduction The Hereditary Hearing loss Homepage aims to give an up-to-date overview of the genetics of hereditary hearing impairment for researchers and clinicians working in the field. [hereditaryhearingloss.org]
Affiliated tissues include brain, and related phenotypes are sensorineural hearing impairment and hearing/vestibular/ear Disease Ontology : 12 An autosomal recessive nonsyndromic deafness that has material basis in mutation in the ILDR1 gene on chromosome [malacards.org]
impairment in humans and defects in hair cell function and hearing in zebrafish. [genome.jp]
In type one, there is both hearing impairment and vestibular impairment. In type II, there is hearing impairment without vestibular impairment. [dizziness-and-balance.com]
Urogenital
- Kidney Failure
[…] disease, which involves the formation of cysts in the kidneys and brings on high blood pressure and kidney failure (18); and Marfan syndrome, a disorder of connective tissues which manifests itself by tall stature, extra long digits, progressive involvement [www2.loras.edu]
Neurologic
- Abnormal Gait
Furthermore, among the core symptoms of HSP are also included abnormal gait and difficulty in walking, decreased vibratory sense at the ankles, and paresthesia.[8] Individuals with HSP can experience extreme fatigue associated with central nervous system [en.wikipedia.org]
Workup
For example if a KNCQ1 mutation is found, additional cardiac workup may be warranted since mutations in this gene are also associated with cardiac rhythm abnormalities. [bcidaho.com]
Diagnostic yield in the workup of congenital sensorineural hearing loss is dependent on patient ethnicity. Otol Neurotol 2011; 32:81-87. 14. Snoeckx RL, Hassan DM, Kamal NM, Van Den Bogaert K, Van Camp G. [ejo.eg.net]
Treatment
Treatment Treatment Options: No information on treatment has been reported. [disorders.eyes.arizona.edu]
[…] fellows wishing to train in the specialty, given that the current standard of training requires knowledge in laryngotracheal reconstruction, congenital airway anomalies, or-facial anomalies, speech and voice disorders, head and neck, and diagnosis and treatment [books.google.com]
Possible treatments include hearing aids, cochlear implants, special training, certain medicines, and surgery. [icdlist.com]
[citation needed] Treatment[edit] No specific treatment is known that would prevent, slow, or reverse HSP. Available therapies mainly consist of symptomatic medical management and promoting physical and emotional well-being. [en.wikipedia.org]
Prognosis
[citation needed] Prognosis[edit] Although HSP is a progressive condition, the prognosis for individuals with HSP varies greatly. It primarily affects the legs although there can be some upperbody involvement in some individuals. [en.wikipedia.org]
"Mid-frequency sensorineural hearing loss: aetiology and prognosis." J Laryngol Otol 119 (7): 529-33. Steel KP. A new era in the genetics of deafness. NEJM 1998 Stojkovic and others. [dizziness-and-balance.com]
These factors lend credence to the theory that patients with GJB2 and GJB6 mutations may have a favorable prognosis following cochlear implantation, and that patients with other mutations or without a documented mutation may have a less favorable prognosis [bcidaho.com]
However, the genetic screening results do not provide accurate information regarding the hearing situation and prognosis of the newborns ( 12 ) due to numerous uncertainties and factors in the molecular detection results, including gene polymorphisms [spandidos-publications.com]
Early diagnosis of GJB2 mutations in nonsyndromic deaf patients is crucial for prognosis and appropriate management. [ejo.eg.net]
Etiology
An important benefit of genetic testing is etiologic diagnosis of hearing loss (JCIH, 2007; ACMG, 2002). [audiologyonline.com]
Repository NIGMS Human Genetic Cell Repository Subcollection Heritable Diseases Class Disorders of Uncertain Biochemical Etiology Quantity 0.050mg Quantitation Method Please see our FAQ Biopsy Source Peripheral vein Cell Type B-Lymphocyte Tissue Type [catalog.coriell.org]
Single-gene testing may be warranted in cases in which the medical or family history, or presentation of the hearing loss, suggests a specific etiology. [bcidaho.com]
Genetic Counseling 19 (1), 15, 2008 12 2008 Deafness on the island of Providencia--Colombia: Different etiology, different genetic counseling MC Lattig, N Gelvez, SL Plaza, G Tamayo, JI Uribe, I Salvatierra, ... [scholar.google.es]
2015/31/1/42/152707 Introduction Congenital hearing loss affects ∼1-3 in 1000 live births in the general population, and 50-60% of these cases have genetic etiologies [1]. [ejo.eg.net]
Epidemiology
From the molecular data presently available, three main epidemiologic results emerge: (a) Mutations in the gene encoding a gap junction protein, connexin 26, account for about half of the cases of prelingual isolated deafness in Caucasian populations; [ommbid.mhmedical.com]
Periodic surveillance is also important. [2] Epidemiology [ edit ] About 1 in 1,000 children in the United States is born with profound deafness. By age 9, about 3 in 1,000 children have hearing loss that affects the activities of daily living. [en.wikipedia.org]
Genetic epidemiology of hearing impairment. Ann N Y Acad Sci 1991 ;630: 16 - 31 2. Reardon W. Genetic deafness. J Med Genet 1992 ;29: 521 - 526 3. Marazita ML, Ploughman LM, Rawlings B, Remington E, Arnos KS, Nance WE. [nejm.org]
A preliminary survey of Chinese domestic genetic epidemiology for deafness showed that the GJB2, SLC26A4 and mitochondrial 12S rRNA (MTRNR1) genes are common mutation hot spots in Chinese nonsyndromic hearing loss ( 4 ). [spandidos-publications.com]
Genetic epidemiology of hearing impairment. [jmg.bmj.com]
Pathophysiology
Each form is introduced by a brief history of how the gene was discovered, followed by the description of its clinical features and the established or putative role of the encoded protein, as well as the current hypotheses concerning the associated pathophysiological [ommbid.mhmedical.com]
POLR3A 10q22.3 Autosomal recessive Pathophysiology[edit] The major feature of HSP is a length-dependent axonal degeneration.[19] These include the crossed and uncrossed corticospinal tracts to the legs and fasciculus gracilis. [en.wikipedia.org]
Prevention
See the video Genetic Screening: The Ultimate Preventive Medicine (KCTS/Seattle, 1980). [www2.loras.edu]
[citation needed] Treatment[edit] No specific treatment is known that would prevent, slow, or reverse HSP. Available therapies mainly consist of symptomatic medical management and promoting physical and emotional well-being. [en.wikipedia.org]
It may also help public health services to adopt effective preventive measures for carrier detection and proper genetic counseling [9]. [ejo.eg.net]
Preventive Services Task Force Recommendations Genetic testing is not a preventive service under normal circumstances. Medicare National Coverage There is no national coverage determination (NCD). [bcidaho.com]
With timely diagnosis, medical management for the cardiac issues can begin and prevent sudden death, which in most cases is the first sign of this condition (Schwartz et al., 2006). [audiologyonline.com]