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Autosomal dominant - Wikipedia, the free encyclopedia autosomal dominant gene is one that occurs on an autosomal (non-sex determining) chromosome. The chances of an autosomal dominant disorder being inherited are 50% if one parent is heterozygous for the mutant gene and the other is homozygous for the normal, or 'wild-type', gene. Some medical conditions may have multiple inheritance patterns, such as in centronuclear myopathy or myotubular myopathy, where the autosomal dominant form is on chromosome 19 but the sex-linked form is on the X chromosome. en.wikipedia.org /wiki/Autosomal_dominant   (456 words)

Autosomal dominant   (Site not responding. Last check: 2007-10-21) The inheritance of genetic diseases, abnormalities, or traits is described by both the type of chromosome on which the abnormal gene resides (autosomal or sex chromosome), and by whether the trait itself is dominant or recessive. Dominant inheritance occurs when an abnormal gene from ONE parent is capable of causing disease even though the matching gene from the other parent is normal. The abnormal gene dominates the outcome of the gene pair. www.umm.edu /ency/article/002049.htm   (536 words)

Autosomal Dominant Inheritance Autosomal dominant inheritance means that the gene carrying a mutation is located on one of the autosomes (chromosome pairs 1 through 22). When a cancer susceptibility gene mutation is inherited in an autosomal dominant manner, it means that the mutation can be inherited from the mother, or the father, who themselves may or may not have ever had any type of cancer. However, with autosomal dominant inheritance, if a parent does not have the gene mutation associated with cancer risk in the family, he/she cannot pass it on his/her children. www.healthsystem.virginia.edu /uvahealth/hub_cancer/adi.cfm   (501 words)

Autosomal recessive verses autosomal dominant retinitis pigmentosa Autosomal recessive verses autosomal dominant retintis pigmentosa (RP) Autosomal recessive RP is the most probable explanation for seemingly isolated incidences of retinitis pigmentosa. In autosomal dominant retintis pigmentosa, one of the chromosome pairs has been altered, but unlike autosomal recessive RP this gene is all that is required for the expression of retinitis pigmentosa gene. www.geocities.com /retinitis_pigmentosa_rp/r_pigmentosa_autorecess.html   (972 words)

Autosomal Dominant Polycystic Kidney Disease The diagnosis and prognosis of autosomal dominant polycystic kidney disease. Hepatic cysts in autosomal dominant polycystic kidney disease. Saccular intracranial aneurysm in autosomal dominant polycystic kidney disease. www.ispub.com /journals/IJEICM/Vol5N1/adpkd.html   (4516 words)

Polycystic Kidney Disease - Urological Disorders Health Guide   (Site not responding. Last check: 2007-10-21) However, in some rare cases, the cause of autosomal dominant PKD occurs spontaneously in the child soon after conception and, in these cases, the parents are not the source of this disease. Autosomal dominant PKD is often called "adult polycystic kidney disease." High blood pressure occurs early in the disease, often before cysts appear. Autosomal recessive PKD is a rare, inherited form of polycystic kidney disease thought to be caused by a particular genetic flaw that is different from the genetic flaw that causes autosomal dominant PKD. www.umm.edu /urology-info/polycyst.htm   (676 words)

Autosomal Dominant: Myotonic Dystrophy   (Site not responding. Last check: 2007-10-21) Autosomal dominant inheritance means that the gene is located on one of the autosomes (chromosome pairs 1 through 22). This is a characteristic of dominant traits: they can have “"variable expression." Most families know that there is a dominant trait or disorder in their family, because it is passed from parent to child and can be seen in many generations. It is important to remember that with autosomal dominant inheritance, if a person does not have the trait, they cannot pass it on. www.healthsystem.virginia.edu /uvahealth/peds_genetics/autosom.cfm   (328 words)

Inheritance of Autosomal Dominant Genetic Diseases - WrongDiagnosis.com Inheritance patterns for autosomal dominance: This refers to diseases where the error is in one of the autosome chromosomes, and the bad gene dominates. A few dominant genetic diseases like Huntington's disease only cause symptoms later in life, so that people cannot know that they have the disease in early life, but this is not the same as being a carrier: these people actually have the disease. Double dominance is usually only possible for a child born to parents that both have the same dominant genetic disease, and the child must have inherited one copy of the bad gene from each parents, about a 25% chance. www.wrongdiagnosis.com /genetics/dominant.htm   (1068 words)

Autosome - Wikipedia, the free encyclopedia Non-autosomal chromosomes are usually referred to as sex chromosomes or, less frequently, as gonosomes. An autosomal dominant gene is one on an autosome that is always expressed, even if a single copy exists. The chance is 1 in 2 (50%) for passing this autosomal dominant gene to a particular offspring. en.wikipedia.org /wiki/Autosome   (128 words)

AllRefer Health - Polycystic Kidney Disease (ADPKD, Autosomal Dominant Polycystic Kidney Disease, Cysts - Kidneys, ... Polycystic kidney disease (PKD) is an inherited disorder (with autosomal dominant inheritance -- if one parent carries the gene, the children have a 50% chance of developing the disorder) where multiple clusters of cysts form on the kidneys. An autosomal recessive form of polycystic kidney disease also exists and appears in infancy or childhood; it tends to be very serious and progresses rapidly, resulting in end-stage kidney failure and generally causing death in infancy or childhood. Autosomal dominant PKD occurs in both children and adults, but it is much more common in adults, often not presenting symptoms until middle age. health.allrefer.com /health/polycystic-kidney-disease-info.html   (601 words)

Urology - Polycystic Kidney Disease "Autosomal dominant" means that if one parent has the disease, there is a 50 percent chance that the disease will pass to a child, and that both males and females are equally affected. Autosomal dominant PKD is often called the adult polycystic kidney disease. Diagnosis of autosomal dominant PKD may include the use of imaging techniques to detect cysts on the kidney and other organs, and a review of the family history of autosomal dominant PKD. uuhsc.utah.edu /healthinfo/adult/urology/polycyst.htm   (724 words)

Nonsyndromic deafness, autosomal dominant - Genetics Home Reference An autosomal dominant inheritance pattern means that one copy of the altered gene in each cell is sufficient to result in hearing loss. Nonsyndromic deafness, autosomal dominant is a subtype of nonsyndromic deafness. Mutations in the ACTG1, COCH, COL11A2, DFNA5, EYA4, GJB2, GJB6, KCNQ4, MYO6, MYO7A, TECTA, TMC1, and WFS1 genes cause nonsyndromic deafness, autosomal dominant. ghr.nlm.nih.gov /condition=nonsyndromicdeafnessautosomaldominant   (744 words)

Gamma-D crystallin gene (CRYGD) mutation causes autosomal dominant congenital cerulean cataracts -- Nandrot et al. 40 ... Autosomal dominant cerulean cataract is associated with a chain termination mutation in the human beta-crystallin gene CRYBB2. A new betaA1-crystallin splice junction mutation in autosomal dominant cataract. Characterization of a new, dominant V124E mutation in the mouse alphaA-crystallin-encoding gene. jmg.bmjjournals.com /cgi/content/full/40/4/262   (4163 words)

Medical Genetics - Autosomal Dominant: Myotonic Dystrophy This is a characteristic of dominant traits: they can have “variable expression”. It is important to remember that with autosomal dominant inheritance, if a person does not have the gene for the trait, they cannot pass it on. There are some dominant genes that do not express themselves in some individuals but do in others of the same family. www.chkd.org /Genetics/autosom.asp   (443 words)

genome.gov | Talking Glossary: "autosomal dominant" (In contrast, recessive diseases require that the individual have two copies of the mutant allele.) Individuals with autosomal dominant diseases have a 50-50 chance of passing the mutant allele and hence the disorder onto their children. Examples of autosomal dominant diseases include Huntington's disease, neurofibromatosis, and polycystic kidney disease. autosome, dominant, gene, Huntington's disease, neurofibromatosis, inherited, Mendelian inheritance, phenotype www.genome.gov /glossary.cfm?key=autosomal+dominant   (108 words)

Ataxia, Hereditary, Autosomal Dominant It is possible that the main title of the report Ataxia, Hereditary, Autosomal Dominant is not the name you expected. This classification is based on the pattern of inheritance or mode of genetic transmission of the disorder: i.e., autosomal dominant, autosomal recessive and X-linked. Until recently, all autosomal dominant ataxias were called Marie’s ataxia and all autosomal recessive ataxias were called Friedreich’s ataxia. www.webmd.com /hw/brain_nervous_system/nord674.asp   (564 words)

Molecular genetic heterogeneity in autosomal dominant drusen -- Tarttelin et al. 38 (6): 381 -- Journal of Medical ... Autosomal dominant drusen is of particular interest because of its phenotypic similarity to age related macular degeneration. Linkage of autosomal dominant radial drusen (malattia leventinese) to chromosome 2p16-21. The gene responsible for autosomal dominant Doyne's honeycomb retinal dystrophy (DHRD) maps to chromosome 2p16. jmg.bmjjournals.com /cgi/content/full/38/6/381   (2424 words)

Autosomal dominant polycystic kidney disease: modifier genes and endothelial dysfunction -- Devuyst et al. 18 (11): ... Autosomal dominant polycystic kidney disease (ADPKD) is characterized Cystic fibrosis and the phenotypic expression of autosomal dominant polycystic kidney disease. CF gene and cystic fibrosis transmembrane conductance regulator expression in autosomal dominant polycystic kidney disease. ndt.oxfordjournals.org /cgi/content/full/18/11/2211   (2383 words)

Human Genetics - Mendelian Inheritance 2 The pattern of autosomal dominant inheritance is perhaps the easiest type of Mendelian inheritance to recognize in a pedigree. With the understanding that almost all affected individuals are heterozygotes, and that in most matings involving a person with an autosomal dominant trait the other partner will be homozygous normal, there are four hallmarks of autosomal dominant inheritance. Suppose a father is heterozygous for an autosomal dominant gene, with allele D, the mutant dominant allele, and allele d, the recessive normal allele. www.uic.edu /classes/bms/bms655/lesson3.html   (1078 words)

Cat Fanciers' Association: Polycystic Kidney Disease As a quick review of genetics, an autosomal dominant gene is one which shows itself if it is present, even if inherited only from one parent. In the chart below, simple Mendelian genetics are outlined to understand how this (and ANY autosomal dominant trait) condition is inherited. As PKD is the result of an autosomal dominant gene, it is relatively easy to track and eliminate. www.cfainc.org /health/pkd.html   (937 words)

eMedicine - Autosomal Dominant Polycystic Kidney Disease : Article by Ali Nawaz Khan, MBBS, FRCP, FRCR   (Site not responding. Last check: 2007-10-21) Uncommonly, autosomal dominant polycystic kidney disease (ADPKD) appears in children, and it is rarely seen in neonates. A 42-year-old man known to have autosomal dominant polycystic kidney disease presented with sudden left upper quadrant pain and hypotension. Chicoskie C, Chaoui A, Kuligowska E, et al: MRI isolation of infected renal cyst in autosomal dominant polycystic kidney disease. www.emedicine.com /radio/topic68.htm   (4834 words)

Dr. Koop - Autosomal dominant genes In the case of autosomal dominant genes, a single abnormal gene on one of the autosomal chromosomes (one of the first 22 "non-sex" chromosomes) from either parent can cause the disease. One of the parents will have the disease (since it is dominant) in this mode of inheritance and that person is called the CARRIER. Only one parent must be a carrier in order for the child to inherit the disease. www.drkoop.com /ency/93/ImagePages/9084.html   (235 words)

Retinitis Pigmentosa, Autosomal Dominant, Whole Blood   (Site not responding. Last check: 2007-10-21) Retinitis pigmentosa (RP) refers to a group of inherited disorders in which abnormalities of the photoreceptors (rods and cones) of the retina lead to progressive loss of vision. RP can be inherited in an autosomal dominant (AD), autosomal recessive (AR), or X-linked (XL) fashion. Autosomal dominant RP is a genetically heterogeneous disorder. www.medicine.uiowa.edu /path_handbook/rhandbook/test2096.html   (436 words)

AccessMedicine - Harrison's Internal Medicine: Autosomal Dominant Polycystic Kidney Disease "Autosomal dominant polycystic kidney disease (ADPKD) has a prevalence of 1:300 to 1:1000 and accounts for Some 90% of cases are inherited as an autosomal dominant trait, and Any use is subject to the Terms of Use and Notice. www.accessmedicine.com /content.aspx?aID=88315   (171 words)

A murine model of autosomal dominant neurohypophyseal diabetes insipidus reveals progressive loss of ... A murine model of autosomal dominant neurohypophyseal diabetes insipidus reveals progressive loss of vasopressin-producing neurons -- Russell et al. A murine model of autosomal dominant neurohypophyseal diabetes insipidus reveals progressive loss of vasopressin-producing neurons dominant disorder caused by mutations in the arginine vasopressin www.jci.org /cgi/content/abstract/112/11/1697   (362 words)

Autosomal dominant spastic paraplegia: Refined SPG8 locus and additional genetic heterogeneity -- Reid et al. 53 (8): ... Autosomal dominant spastic paraplegia: Refined SPG8 locus and additional genetic heterogeneity -- Reid et al. OBJECTIVE: To map the gene responsible for autosomal dominant Autosomal dominant (AD) pure spastic paraplegia (HSP) linked to locus SPG4 affects almost exclusively males in a large pedigree www.neurology.org /cgi/content/abstract/53/8/1844   (498 words)

Autosomal dominant - Glossary Entry - Genetics Home Reference A gene on one of the non-sex chromosomes that is always expressed, even if only one copy is present. Describes a trait or disorder in which the phenotype is expressed in those who have inherited only one copy of a particular gene mutation (heterozygotes); specifically refers to a gene on one of the 22 pairs of autosomes (non-sex chromosomes) If a genetic disorder runs in my family, what are the chances that my children will have the condition? ghr.nlm.nih.gov /ghr/glossary/autosomaldominant   (129 words)

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