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Results: 1 to 20 of 46

1.

MedGen UID:
108418
Concept ID:
C0581883
2.

Retinitis pigmentosa

Retinitis pigmentosa (RP) is a group of inherited disorders in which abnormalities of the photoreceptors (rods and cones) or the retinal pigment epithelium (RPE) of the retina lead to progressive visual loss. Affected individuals first experience defective dark adaptation or "night blindness," followed by constriction of peripheral visual fields and, eventually, loss of central vision late in the course of the disease. [from GeneReviews]

MedGen UID:
20551
Concept ID:
C0035334
Disease or Syndrome
3.

Retinitis

Inflammation of the RETINA. It is rarely limited to the retina, but is commonly associated with diseases of the choroid (CHORIORETINITIS) and of the OPTIC DISK (neuroretinitis). [from MeSH]

MedGen UID:
19765
Concept ID:
C0035333
Disease or Syndrome
4.

Syndrome

A set of symptoms or conditions that occur together and suggest the presence of a certain disease or an increased chance of developing the disease. [from NCI]

MedGen UID:
11688
Concept ID:
C0039082
Disease or Syndrome
5.

Deafness

A general term for the complete loss of the ability to hear from both ears. [from MeSH]

MedGen UID:
4155
Concept ID:
C0011053
Finding
6.

Profound

MedGen UID:
615266
Concept ID:
C0439808
7.

Congenital sensorineural hearing impairment

A type of `hearing impairment` (HP:0000365) caused by an `abnormal` (PATO:0000460) `functionality` (PATO:0001509) of the `cochlear nerve` (FMA:53431) with `congenital onset` (HP:0003577). [from HPO]

MedGen UID:
506233
Concept ID:
CN007507
Finding
8.

Retinitis pigmentosa

Hereditary degeneration and atrophy of the retina. [from HPO]

MedGen UID:
504473
Concept ID:
CN000477
Finding
9.

Sensorineural hearing impairment

A type of `hearing impairment` (HP:0000365) in one or both ears related to an `abnormal` (PATO:0000460) `functionality` (PATO:0001509) of the `cochlear nerve` (FMA:53431). [from HPO]

MedGen UID:
504436
Concept ID:
CN000380
Finding
10.

Hearing impairment

A `decreased magnitude` (PATO:0002018) of the `sensory perception of sound` (GO:0007605). [from HPO]

MedGen UID:
446352
Concept ID:
CN000341
Finding
11.

Error occurred: cannot get document summary

ID:
430351

12.

Thyroid hormone plasma membrane transport defect

MedGen UID:
396060
Concept ID:
C1861101
Disease or Syndrome
13.

Usher syndrome, type 1B

MedGen UID:
341270
Concept ID:
C1848638
Disease or Syndrome
14.

Vestibular dysfunction

MedGen UID:
334848
Concept ID:
C1843865
Finding
15.

Deranged function in an individual or an organ that is due to a disease. (MedicineNet.com) [from NCI]

MedGen UID:
124450
Concept ID:
C0277785
16.

Neonatal hemochromatosis

Neonatal hemochromatosis (NH) is characterized by hepatic failure in the newborn period and heavy iron staining in the liver. In addition, there is marked siderosis of extrahepatic tissues, including the heart and pancreas (Driscoll et al., 1988). Whitington (2007) postulated that some cases of neonatal hemochromatosis result from maternal alloimmunity directed at the fetal liver, and therefore do not represent an inherited mendelian disorder. Other causes may result from metabolic disease or perinatal infection. In particular, he commented that the disorder is not related to the family of inherited liver diseases that fall under the classification of hereditary hemochromatosis (see, e.g., 235200). Whitington (2007) proposed the term 'congenital alloimmune hepatitis.' In the past, the disorder has loosely been labeled 'neonatal hepatitis' and 'giant cell hepatitis,' which are pathologic findings in the liver representing a common response to a variety of insults, including cholestatic disorders and infection, among others (Fawaz et al., 1975; Knisely et al., 1987; Kelly et al., 2001). [from OMIM]

MedGen UID:
82768
Concept ID:
C0268059
Disease or Syndrome
17.

Retinitis pigmentosa-deafness syndrome

Usher syndrome is a condition characterized by hearing loss or deafness and progressive vision loss. The loss of vision is caused by an eye disease called retinitis pigmentosa (RP), which affects the layer of light-sensitive tissue at the back of the eye (the retina). Vision loss occurs as the light-sensing cells of the retina gradually deteriorate. Night vision loss begins first, followed by blind spots that develop in the side (peripheral) vision. Over time, these blind spots enlarge and merge to produce tunnel vision. In some cases of Usher syndrome, vision is further impaired by clouding of the lens of the eye (cataracts). Many people with retinitis pigmentosa retain some central vision throughout their lives, however. Researchers have identified three major types of Usher syndrome, designated as types I, II, and III. These types are distinguished by their severity and the age when signs and symptoms appear. Type I is further divided into seven distinct subtypes, designated as types IA through IG. Usher syndrome type II has at least three described subtypes, designated as types IIA, IIB, and IIC. Individuals with Usher syndrome type I are typically born completely deaf or lose most of their hearing within the first year of life. Progressive vision loss caused by retinitis pigmentosa becomes apparent in childhood. This type of Usher syndrome also includes problems with the inner ear that affect balance. As a result, children with the condition begin sitting independently and walking later than usual. Usher syndrome type II is characterized by hearing loss from birth and progressive vision loss that begins in adolescence or adulthood. The hearing loss associated with this form of Usher syndrome ranges from mild to severe and mainly affects high tones. Affected children have problems hearing high, soft speech sounds, such as those of the letters d and t. The degree of hearing loss varies within and among families with this condition. Unlike other forms of Usher syndrome, people with type II do not have difficulties with balance caused by inner ear problems. People with Usher syndrome type III experience progressive hearing loss and vision loss beginning in the first few decades of life. Unlike the other forms of Usher syndrome, infants with Usher syndrome type III are usually born with normal hearing. Hearing loss typically begins during late childhood or adolescence, after the development of speech, and progresses over time. By middle age, most affected individuals are profoundly deaf. Vision loss caused by retinitis pigmentosa also develops in late childhood or adolescence. People with Usher syndrome type III may also experience difficulties with balance due to inner ear problems. These problems vary among affected individuals, however.
[from GHR]

MedGen UID:
78754
Concept ID:
C0271097
Disease or Syndrome
18.

Retinaldehyde

A carotenoid constituent of visual pigments. It is the oxidized form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration. [from MeSH]

MedGen UID:
19764
Concept ID:
C0035331
Pharmacologic Substance
19.

Sensorineural hearing loss

Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM. [from MeSH]

MedGen UID:
9164
Concept ID:
C0018784
Disease or Syndrome
20.

Amino acid

One of several molecules that join together to form proteins. There are 20 common amino acids found in proteins. [from NCI]

MedGen UID:
250
Concept ID:
C0002520
Pharmacologic Substance

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