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Gen Dis St 1
Genetics Diseases Step 1
| Question | Answer |
|---|---|
| Achondroplasia | "FGF receptor 3; Dwarfism; short limbs |
| Acute intermittent porphyria/Porphyria Cutanea Tarda | "Acute: Uroporphyrinogen I synthase |
| Alpha-1-Antitrypsin Deficiency | Can cause Emphysema through excess elastase activity. |
| Angelman | "Deletion of normally active Maternal allele; Mental retardation |
| Cystic Fibrosis | "AR defect in CFTR |
| Ehler’s-Danlos | Faulty collagen synthesis causing: 1. Hyperextensible skin 2. Tendency to bleed 3. hypermoile joints. 6 types. Inheritane and severity vary. AD or AR. Type III collagen. |
| Fabry’s Disease | "Lysosomal storage disease |
| Familial Hypercholesterolemia | "Elevated LDL due to defective or abset LDL receptor. Heterozygotes have chol = 300 mg/dL. Homo have chol = 700 |
| "Fructosuria | Fructose Intolerance" |
| "Galactosemia | Galactokinase deficiency" |
| Gaucher’s Disease | "Most common lysosomal storage disease. Hepatosplenomegaly |
| Hereditary Hemochromotosis | "cirrhosis of liver |
| Hereditary Hemorrhagic telangiectasia | "Inherited disorder of blood vessels. Findings: telangiectasia |
| Homocystenuria | "homocysteine methyltransferase deficiency. Increased homocysteine in urine |
| Hypertrophic Cardiomyopathy | |
| Marfan’s | "Fibrillin-->connective tissue disorder affecting skeleton |
| MSUD | "blocked degradation of branched amino acids (Ile |
| Multiple Endocrine Neoplasia | "Several distinct syndromes (I |
| Neurofibromatosis 1 | "café-aulait spots |
| Neurofibromatosis 2 | "Bilateral acoustic neuroma |
| Osteogenesis Imperfecta | "Brittle bone disease. Most common form is AD with abnormal type I collagen |
| PKU | "Phylalanine hydroxylase. Phenylketones in urine. Mental retardation |
| Polycystic Kidney Disease | "APKD. Always bilateral |
| Prader-willi | "Deletion of normally active Paternal allele; Mental retardation |
| Tuberous Sclerosis | "Facial lesions (adenoma sebaceum) |
| Turner’s | "45 XO |
| Von-Hippel-Lindau | Hemangioblastomas of retina/cerebellum/medulla; about half of affected individuals develop multiple bilateral renal cell carcinomas and other tumors. Associated with deletion of VHL gene (tumor suppressor) on ch 3 (3 words; Von Hippel-Lindau). Results in |
| Wilson’s | "inadequate hepatic coppper exrection. Keyser-Fleischer rings |