Presentation
Mutation in dopamine decarboxylase Which of the following clinical features is always present in OCA1 and are they present at birth? a. Coloboma and glaucoma, present at birth b. Cataract and glaucoma, present at birth c. [gwumc.edu]
Chediak-Higashi syndrome (CHS) presents with hypopigmentation associated with an increased susceptibility to bacterial infections. [ommbid.mhmedical.com]
The melanocyte is present in all individuals and is only rarely absent in some. [edoj.org.eg]
Abstract In this study, we report on a Cameroonian family from the Ewondo ethnic group, presenting with three oculocutaneous albinism type 2 (OCA2) patients homozygous for the 2.7-kb deletion of the P gene. [nature.com]
In albinos however these cancers are known to present earlier [15-17]. [odermatol.com]
Musculoskeletal
- Short Arm
The SLC45A2 gene, also called MATP, located on the short arm of chromosome 5 (5p13.2), encodes a protein, although its exact function is unknown, is likely to be involved in melanin production. [ivami.com]
Cloning of the gene for ocular albinism type 1 from the distal short arm of the X chromosome. Nat Genet. 1995 May;10(1):13-9. ↑ O'Donnell FE Jr, Green WR, Fleischman JA, Hambrick GW. X-linked ocular albinism in Blacks. Ocular albinism cum pigmento. [eyewiki.aao.org]
Cloning of the gene for ocular albinism type 1 from the distal short arm of the X chromosome. Nat Genet. 1995; 10 :13–9. [ PubMed : 7647783 ] Bech-Hansen NT, Naylor MJ, Maybaum TA, Pearce WG, Koop B, Fishman GA, Mets M, Musarella MA, Boycott KM. [ncbi.nlm.nih.gov]
- Long Arm
In addition to mutations in TYR, OCA2, TYRP1 and SLC45A2 gene, alterations in another gene called MC1R, located on the long arm of chromosome 16 (16q24.3), can change the appearance of people with oculocutaneous albinism type 2. [ivami.com]
A locus for familial early-onset Alzheimer's disease on the long arm of chromosome 14 proximal to the alpha 1-antichymotrypsin gene. Página 48 - M., 2000. [books.google.es]
Workup
Metastasis workup was negative. Complete surgical excision, strict photoprotection and regular follow-up were advised. A timely recognition of this potentially aggressive neoplasm is the key to curative treatment. [e-ijd.org]
Treatment
CLOSE Medical Disclaimer The medical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes. [diseaseinfosearch.org]
We know from our own experience and can prove as IVF patients that high-quality Donor IVF treatment abroad doesn't have to break the bank. Your reason for travelling abroad for treatment may not just be about saving money. [eggscursion.com.au]
Treatment Treatment Options: There is no treatment for the basic disease but low vision aids may be helpful for some patients. Dark glasses provide comfort for photophobic individuals. The skin should be protected against sunburn. [disorders.eyes.arizona.edu]
There is no cure for vitiligo, but there are several treatments, including cosmetic cover-ups, corticosteroid creams, calcineurin inhibitors (Elidel cream, Protopic ointment) or ultraviolet light treatments. [webmd.com]
State-of-the-art coverage of key areas such as OCT and all of the newest imaging techniques for the eye, orbit and visual pathways; anti-VEGF treatment for retinopathy of prematurity; and minimally invasive strabismus surgery. [books.google.com]
Prognosis
[…] tyrosine Genetics inheritance pattern autosomal recessive mutations type 1 chromosome 11 gene encoding tyrosinase type 2 chromosome 15 OCA2 gene encodes small molecule transporters involved in transport of tyrosinase Associated conditions skin cancer Prognosis [medbullets.com]
Complications Skin cancer, sunburn Reduced visual acuity Social stigma Prognosis Patients with albinism have a normal lifespan. An increased risk of skin cancer exists; however, this is curable. Patients may have children with no complications. [medcaretips.com]
The patient will continue to benefit from rehabilitative services in the United States, and the patient’s prognosis is positive as OCA is a stable condition. [coavision.org]
Prognosis Lifespan, development, intelligence, and fertility in patients with OCA are not different from unaffected patients. [eyewiki.aao.org]
Prognosis Growth, development and intellectual development in the child are normal. Vision is invariably severely impaired [ 2 ]. A spectrum of structure and function exists in albinism. [patient.info]
Etiology
Lyons, both globally recognized leaders, provide authoritative coverage of all the pediatric ophthalmic conditions you’re likely to encounter in practice, including the latest clinical advances in etiology, diagnosis, and medical and surgical management [books.google.com]
The etiology of oculocutaneous albinism (OCA) type II: the pink protein modulates the processing and transport of tyrosine. Pigment Cell Res. 2002;15:217. Oetting WS, Gardner JM, Fryer JP, et al. [rarediseases.org]
Etiology Biochemical pathway leading to melanin production. Note that Tyrosinase is essential for the first two steps of the pathway. [eyewiki.aao.org]
Epidemiology
Epidemiology [ 2 ] About 1 in 70 people carry a gene for OCA. Approximately 1 in 17,000 people in Europe and the USA have one of the types of albinism, although in some parts of the world it is more common than this. [patient.info]
Cancer Epidemiology, Biomarkers & Prevention. 11 :782-784, 2002. [ Link to article (PubMed) ] Rinchik E. M., Bultman S. J., Horsthemke B., Lee S-T., Strunk K. M., Spritz R. A., Avidanoll K. M., Long M. T. C., Nicholls R. D. [ifpcs.org]
Pathophysiology
Pathophysiology of Albinism Melanin is a pigment in the skin that absorbs ultraviolet light from the sun, thereby preventing skin damage. The tanning of the skin normally on sun exposure is due to increased melanin pigment in the skin. [medcaretips.com]
In The Pigmentary System: Physiology and Pathophysiology, 2nd ed. Nordlund JJ, Boissy RE, Hearing VJ, King RA, Oetting WS, Ortonne J-P, eds. New York, NY: Oxford University Press; 2006:599-613. King RA Hearing VJ, Creel DJ, et al. Albinism. [rarediseases.org]
Prevention
The Genetic Counseling Clinic, The Michaelson Institute for the Prevention of Blindness, Hadassah University Hospital, Kyriat Hadassah, PO Box 12000, Jerusalem 91120, Israel IL 3. [link.springer.com]
From available reports, skin cancers in albinos are preventable [21,22]. [odermatol.com]
Tea tree oil : Tea tree oil is purported to have antiseptic properties, and has been used traditionally to prevent and treat infections. [livingnaturallyonline.com]
[…] white hair) blue to yellow/brown irides pigmented nevi freckles Studies Labs genetic testing to confirm diagnosis Differential Vitiligo Treatment Conservative sunscreen, sunglasses, and avoid sun exposure indication for all patients in an attempt to prevent [medbullets.com]
In 2015, the United Nations called for "urgency" in taking measure to prevent attacks on people with albinism. [medicalnewstoday.com]