Comprehensive Cardiomyopathy + mtDNA
|TAT (TURNAROUND TIME)
||2 - 4 weeks
||81439, 81460, 81465
|RECOMMENDED MNG KITS
SINGLE Blood Genetic Testing
Buccal Swab Genetic Testing
Hypertrophic cardiomyopathy (HCM) is typically defined by the presence of unexplained left ventricular hypertrophy (LVH). Such LVH occurs in a non-dilated ventricle in the absence of other cardiac or systemic disease capable of producing the observed magnitude of increased left ventricle wall thickness. The prevalence of unexplained LVH in the general population is estimated at 1:500, predicting approximately 600,000 persons with HCM in the USA. As such, HCM is one of the most common monogenic cardiovascular disorders. Familial HCM caused by sarcomere gene mutations is inherited in an autosomal dominant manner.
Nonsyndromic isolated dilated cardiomyopathy (DCM) is characterized by left ventricular enlargement and systolic dysfunction, a reduction in the myocardial force of contraction. Genetic DCM can be inherited in an autosomal dominant, autosomal recessive, or X-linked manner. Multiple well-designed epidemiologic studies have shown an HCM prevalence of approximately 1:500. Regardless of whether a DCM-causing mutation has been identified, evaluation of first-degree relatives of a proband with idiopathic dilated cardiomyopathy by echocardiography and electrocardiography (ECG) has shown that approximately 20%-35% of probands will have familial disease.
|Acceptable Sample Types
Whole Blood - EDTA
Extracted DNA - Leukocytes
||(1) Blood specimens: Draw blood in an EDTA tube. Preferred volume: 4 milliliters (adults and pediatrics), Minimum volume: 2 milliliters; (2) DNA extracted from leukocytes, muscle, or fibroblasts: Preferred quantity: 4 micrograms, Minimum quantity: 3 micrograms (Genomic DNA should be eluted in sterile Dnase/Rnase free water or TE. The A260:A280 ratio should be 1.8-2.0.); (3) 2 T-25 flasks of fibroblasts; (4) 50-75 milligrams muscle snap frozen in liquid nitrogen and maintained at -80°Celsius or below. (5) Skin biopsy (Fibroblasts will be cultured from skin specimen for genetic testing): Skin biopsy may be taken from the inner forearm with a sterile skin punch (2-5 millimeters) or at incision site of muscle biopsy. Site is sterilized with alcohol swabs only (other reagents will inhibit cell isolation/growth). Biopsy site may be anaesthetized with 2% lidocaine with epinephrine. Depth of punch is 2mm. Transfer skin biopsy into 15 milliliter conical tube filled with sterile culture media. (6) Buccal cells.
||MNG SmartKits are available for free shipping of specimens. Please see our website for details. If you are not using a MNG SmartKit: (1) Blood specimens should be shipped in a secure container at room temperature. (2) Extracted DNA should be shipped priority overnight at ambient temperature. (3) T-25 flasks containing fibroblasts should be shipped in an insulated container at room temperature. Flasks should be completely filled with media and cells should be ~90% confluent. Fibroblast samples must be certified free from Mycoplasma. MNG is able to perform this service for a small charge (See TC05). (4) Muscle samples should be shipped frozen in an insulated container with 5-7 lbs dry ice. (5) Buccal cells should be shipped in a secure container at room temperature. (6) Skin Biopsy: Conical containing the skin specimen should be shipped in a secure container with cold pack (DO NOT FREEZE). All samples should be shipped overnight at the proper temperature for receipt by our lab Monday thru Saturday (No Sunday or holiday deliveries accepted).
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