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Items: 1 to 20 of 243

1.

Autoinflammation, immune dysregulation, and eosinophilia

Autoinflammation, immune dysregulation, and eosinophilia (AIIDE) is an autosomal dominant disorder characterized by onset of severe atopic dermatitis and chronic gastrointestinal inflammation, mainly involving the colon, in infancy or early childhood. Affected individuals tend to have asthma and food or environmental allergies, as well as poor overall growth with short stature. Laboratory studies show increased eosinophils with normal IgE levels, as well as evidence of a hyperactive immune state, including increased erythrocyte sedimentation rate and C-reactive protein. Treatment with JAK inhibitors, such as ruxolitinib and tofacitinib, results in dramatic clinical improvement (summary by Gruber et al., 2020). [from OMIM]

MedGen UID:
1750270
Concept ID:
C5436572
Disease or Syndrome
2.

Immunodeficiency 73b with defective neutrophil chemotaxis and lymphopenia

Immunodeficiency-73B with defective neutrophil chemotaxis (IMD73B) is an autosomal dominant immunologic disorder characterized by onset of recurrent infections in infancy or early childhood. Affected individuals develop respiratory infections, cellulitis, and severe invasive infections or sepsis; organisms include bacteria such as Staphylococcus, as well as viruses, fungi, and mycobacterial species. Laboratory studies show variable abnormalities, including B- and T-cell lymphopenia, decreased immunoglobulin subsets, decreased TRECs and dysfunctional T cells, decreased NK cells, neutropenia, and impaired neutrophil chemotaxis. Hematopoietic stem cell transplantation is curative (summary by Hsu et al., 2019; review by Lougaris et al., 2020). In a review of autosomal forms of chronic granulomatous disease (see 306400 for genetic heterogeneity of CGD), Roos et al. (2021) noted that patients with RAC2 mutations may manifest CGD-like symptoms due to defects in neutrophil NADPH oxidase activity. [from OMIM]

MedGen UID:
1740566
Concept ID:
C5436549
Disease or Syndrome
3.

Immunodeficiency 73c with defective neutrophil chemotaxis and hypogammaglobulinemia

MedGen UID:
1734177
Concept ID:
C5436550
Disease or Syndrome
4.

Intellectual developmental disorder with paroxysmal dyskinesia or seizures

Intellectual developmental disorder with paroxysmal dyskinesia or seizures (IDDPADS) is an autosomal recessive complex neurologic disorder characterized by global developmental delay with impaired intellectual development and language delay. In addition, most patients develop a paroxysmal hyperkinetic movement disorder in the first months or years of life manifest as sudden falls or backward propulsion, eye or head deviation, and dystonic limb posturing followed by chorea and dyskinetic movements. The episodes are pharmacoresistant to anticonvulsant medication. EEG may show interictal abnormalities, but are usually not consistent with epilepsy. However, some patients may also develop epileptic seizures or only have seizures without a movement disorder (summary by Doummar et al., 2020). [from OMIM]

MedGen UID:
1727046
Concept ID:
C5436894
Disease or Syndrome
5.

Combined immunodeficiency, X-linked

MedGen UID:
1720670
Concept ID:
CN030319
Disease or Syndrome
6.

Intellectual developmental disorder, autosomal dominant 63, with macrocephaly

MedGen UID:
1716581
Concept ID:
C5394205
Disease or Syndrome
7.

Spondylometaphyseal dysplasia with corneal dystrophy

Spondylometaphyseal dysplasia with corneal dystrophy (SMDCD) is characterized by short stature due to short proximal and distal long bones. Affected individuals also exhibit narrow thorax with pulmonary hypoplasia and respiratory failure, as well as corneal dystrophy. Severe developmental delay has been observed (Ben-Salem et al., 2018). [from OMIM]

MedGen UID:
1714019
Concept ID:
C5394555
Disease or Syndrome
8.

Neurodevelopmental disorder with seizures, hypotonia, and brain imaging abnormalities

Neurodevelopmental disorder with seizures, hypotonia, and brain imaging abnormalities (NEDSHBA) is an autosomal recessive neurodevelopmental disorder characterized by global developmental delay, severe to profound intellectual impairment, early-onset refractory seizures, hypotonia, failure to thrive, and progressive microcephaly. Brain imaging shows cerebral atrophy, thin corpus callosum, and myelination defects. Death in childhood may occur (summary by Marafi et al., 2020). [from OMIM]

MedGen UID:
1708579
Concept ID:
C5394517
Disease or Syndrome
9.

SHORT SLEEP, FAMILIAL NATURAL, 2

MedGen UID:
1684839
Concept ID:
C5231420
Disease or Syndrome
10.

Lymphatic malformation 8

Lymphatic malformation-8 (LMPHM8) is an autosomal recessive disorder in which affected fetuses die in utero due to nonimmune hydrops fetalis (NIHF). The fetus and placenta are edematous with interstitial accumulation of fluid and abnormally shaped vessels. The disorder results from impaired lymphangiogenesis. Carrier females have reduced fertility and recurrent miscarriages likely due to NIHF (summary by Mackie et al., 2018). For a discussion of genetic heterogeneity of lymphatic malformation, see LMPHM1 (153100). [from OMIM]

MedGen UID:
1684767
Concept ID:
C5231496
Disease or Syndrome
11.

Ectodermal dysplasia with facial dysmorphism and acral, ocular, and brain anomalies

EDFAOB is characterized by linear hypopigmentation and craniofacial asymmetry in association with ocular, dental, and acral anomalies. Brain imaging has revealed some abnormalities, including diffuse cystic leukoencephalopathy and mildly enlarged lateral ventricles, but patients show no intellectual or neurologic impairment (Vabres et al., 2019). [from OMIM]

MedGen UID:
1684719
Concept ID:
C5231477
Disease or Syndrome
12.

Immunodeficiency 64

Immunodeficiency-64 (IMD64) is an autosomal recessive primary immunodeficiency characterized by onset of recurrent bacterial, viral, and fungal infections in early childhood. Laboratory studies show variably decreased numbers of T cells, with lesser deficiencies of B and NK cells. There is impaired T-cell proliferation and activation; functional defects in B cells and NK cells may also be observed. Patients have increased susceptibility to EBV infection and may develop lymphoproliferation or EBV-associated lymphoma. Some patients may develop features of autoimmunity (summary by Salzer et al., 2016, Mao et al., 2018, and Winter et al., 2018). [from OMIM]

MedGen UID:
1684716
Concept ID:
C5231402
Disease or Syndrome
13.

Immunodeficiency 63 with lymphoproliferation and autoimmunity

Immunodeficiency-63 with lymphoproliferation and autoimmunity (IMD63) is an autosomal recessive disorder characterized by immune dysregulation. Affected individuals present in infancy with features of both abnormal activation of certain immune signaling pathways, resulting in lymphoid proliferation, dermatitis, enteropathy, and hypergammaglobulinemia, as well as features of immunodeficiency, such as recurrent infections and increased susceptibility to viral infections, especially CMV. Laboratory studies show increased NK cells that show impaired differentiation, as well as abnormal T cell populations or responses. Some patients may die in childhood; hematopoietic bone marrow transplantation is curative (summary by Zhang et al., 2019). [from OMIM]

MedGen UID:
1682943
Concept ID:
C5193126
Disease or Syndrome
14.

Mahvash disease

Mahvash disease (MVAH) is an autosomal recessive disorder caused by inactivating mutations in the glucagon receptor, leading to alpha-cell hyperplasia of the pancreas, hyperglucagonemia without glucagonoma syndrome, and occasional hypoglycemia. The disease may lead to glucagonomas and/or primitive neuroectodermal tumors (PNETs). [from OMIM]

MedGen UID:
1677024
Concept ID:
C4763635
Disease or Syndrome
15.

BODY MASS INDEX QUANTITATIVE TRAIT LOCUS 20

Obesity due to mutation in the MC4R gene is the most common cause of monogenic obesity. Patients have early-onset severe obesity and hyperphagia (Farooqi et al., 2003). [from OMIM]

MedGen UID:
1674972
Concept ID:
C4759928
Finding
16.

Immunodeficiency 62

Immunodeficiency-62 (IMD62) is an autosomal recessive primary immunologic disorder clinically characterized by onset of recurrent upper and lower respiratory infections late in the first decade of life. Patients may also have increased viral susceptibility to varicella zoster virus (VZV) or herpes simplex virus (HSV). Laboratory studies show impaired antibody response to vaccination, low levels of circulating memory B cells, and almost undetectable antibodies. There is also evidence of secondary T-cell dysfunction. The disorder may result from disturbed actin cytoskeleton dynamics causing impaired lymphocyte migration (summary by Bouafia et al., 2019). [from OMIM]

MedGen UID:
1673905
Concept ID:
C5193109
Disease or Syndrome
17.

Isolated growth hormone deficiency, type 4

IGHD type IV is an autosomal recessive disorder characterized by early and severe growth failure (height SDS up to -7.4), a blunted growth hormone (GH) response to different provocation tests and low insulin-like growth factor-I (IGF1; 147440) and IGF-binding protein-3 (IGFBP3; 146732) concentrations, and a good response to growth hormone treatment (summary by Alatzoglou et al., 2014). For general phenotypic information and a discussion of genetic heterogeneity of IGHD, see 262400. [from OMIM]

MedGen UID:
1648300
Concept ID:
C4722273
Disease or Syndrome
18.

Deuteranopia

Normal color vision in humans is trichromatic, being based on 3 classes of cone that are maximally sensitive to light at approximately 420 nm (blue cones; 613522), 530 nm (green cones; 300821), and 560 nm (red cones; 300822). Comparison by neural circuits of light absorption by the 3 classes of cone photoreceptors allows perception of red, yellow, green, and blue colors individually or in various combinations. Dichromatic color vision is severely defective color vision based on the use of only 2 types of photoreceptors, blue plus green (protanopia; see 303900) or blue plus red (deuteranopia). Anomalous trichromacy is trichromatic color vision based on a blue, green, and an anomalous red-like photoreceptor (protanomaly), or a blue, red, and an anomalous green-like photoreceptor (deuteranomaly). The color vision defect is generally mild but may in certain cases be severe. Common variation in red-green color vision exists among both normal and color-deficient individuals (review by Deeb, 2005). [from OMIM]

MedGen UID:
1647334
Concept ID:
C4551635
Disease or Syndrome
19.

Gingival fibromatosis 1

Any gingival fibromatosis in which the cause of the disease is a mutation in the SOS1 gene. [from MONDO]

MedGen UID:
1647111
Concept ID:
C4551558
Disease or Syndrome
20.

Primary familial polycythemia due to EPO receptor mutation

Primary familial and congenital polycythemia (PFCP) is characterized by isolated erythrocytosis in an individual with a normal-sized spleen and absence of disorders causing secondary erythrocytosis. Clinical manifestations relate to the erythrocytosis and can include plethora, the hyperviscosity syndrome (headache, dizziness, fatigue, lassitude, visual and auditory disturbances, paresthesia, myalgia), altered mental status caused by hypoperfusion and local hypoxia, and arterial and/or venous thromboembolic events. Although the majority of individuals with PFCP have only mild manifestations of hyperviscosity such as dizziness or headache, some affected individuals have had severe and even fatal complications including arterial hypertension, intracerebral hemorrhage, deep vein thrombosis, coronary disease, and myocardial infarction. To date 116 affected individuals from 24 families have been reported. [from GeneReviews]

MedGen UID:
1641215
Concept ID:
C4551637
Disease or Syndrome
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