Biomaterial Database

[Donohue's syndrome (Leprechaunism)]. 1994

T Imamura, and M Kobayashi

First Department of Medicine, Toyama Medical and Pharmaceutical University.

The syndrome of leprechaunism is characterized by the elfin-like face, hirsutism, acanthosis nigricans, absence of subcutaneous fat, and intrauterine and neonatal growth retardation. Most of the cases have severe insulin resistance with the mutation of the insulin receptor gene. In some cases, patient had two different mutations of the insulin receptor gene, and showed extremely severe insulin resistance. However, the genetic abnormalities responsible for the patient's phenotype, other than the insulin resistance, have not been found. Further study to define the additional genetic defects will be necessary to understand the abnormalities of this disorder.

UI	MeSH Term	Description	Entries
D007333	Insulin Resistance	Diminished effectiveness of INSULIN in lowering blood sugar levels: requiring the use of 200 units or more of insulin per day to prevent HYPERGLYCEMIA or KETOSIS.	Insulin Sensitivity,Resistance, Insulin,Sensitivity, Insulin
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D011972	Receptor, Insulin	A cell surface receptor for INSULIN. It comprises a tetramer of two alpha and two beta subunits which are derived from cleavage of a single precursor protein. The receptor contains an intrinsic TYROSINE KINASE domain that is located within the beta subunit. Activation of the receptor by INSULIN results in numerous metabolic changes including increased uptake of GLUCOSE into the liver, muscle, and ADIPOSE TISSUE.	Insulin Receptor,Insulin Receptor Protein-Tyrosine Kinase,Insulin Receptor alpha Subunit,Insulin Receptor beta Subunit,Insulin Receptor alpha Chain,Insulin Receptor beta Chain,Insulin-Dependent Tyrosine Protein Kinase,Receptors, Insulin,Insulin Receptor Protein Tyrosine Kinase,Insulin Receptors
D003920	Diabetes Mellitus	A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.
D005145	Face	The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.	Faces
D006130	Growth Disorders	Deviations from the average values for a specific age and sex in any or all of the following: height, weight, skeletal proportions, osseous development, or maturation of features. Included here are both acceleration and retardation of growth.	Stunted Growth,Stunting,Disorder, Growth,Growth Disorder,Growth, Stunted,Stuntings
D006628	Hirsutism	A condition observed in WOMEN and CHILDREN when there is excess coarse body hair of an adult male distribution pattern, such as facial and chest areas. It is the result of elevated ANDROGENS from the OVARIES, the ADRENAL GLANDS, or exogenous sources. The concept does not include HYPERTRICHOSIS, which is an androgen-independent excessive hair growth.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000015	Abnormalities, Multiple	Congenital abnormalities that affect more than one organ or body structure.	Multiple Abnormalities
D000052	Acanthosis Nigricans	A circumscribed melanosis consisting of a brown-pigmented, velvety verrucosity or fine papillomatosis appearing in the axillae and other body folds. It occurs in association with endocrine disorders, underlying malignancy, administration of certain drugs, or as in inherited disorder.	Acanthosis Nigrican,Nigrican, Acanthosis,Nigricans, Acanthosis