LABOKLIN (UK)| Genetic Diseases | Cats| Hypokalemia / Familial Episodic Hypokalaemic Polymyopathy (BHK)

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Hypokalemia / Familial Episodic Hypokalaemic Polymyopathy (BHK) Test number: 8453 (this test number replaces the old 8453C) Gene: BHK Price: £ 48.00 (including VAT)

Breeds

Australian Mist , Burmese , Cornish Rex , Devon Rex , Singapura , Sphynx , Tonkinese .

The Disease

Burmese Hypokalemia (Familial Episodic Hypokalaemic Polymyopathy) is a recessive genetic characterized by episodes of low serum potassium levels and high CPK (creatine phosphate kinase, an enzyme that indicates muscle damage). Clinical Symptoms include episodes of skeletal muscle weakness which can affect all muscles of the cat body or it can be restricted to certain muscles. This is mostly seen in the neck muscles, but sometimes it affects the limbs only. As a result affected cats may have problems with walking and holding their head correctly. The disease is not typically fatal and can usually be managed by adding potassium supplements to the diet (consult yuor vet if your cat is affected). The disease affects Burmese and Burmese related breeds such as Burmilla, Bombay, Cornish Rex, Devon Rex, Singapura, Sphynx, Australian Mist, Tiffanie, and Tonkinese. The genetic mutation responsible for this disease has been identified by a team of researchers from the University of Bristol (England), the Lyons Feline Genetics Research Laboratory at UC Davis, University of Sydney, Massey University and Justus Liebig University. This discovery has allowed development of a genetic test that allows identification of carrier and affected cats.

Trait of Inheritance

Inheritance : AUTOSOMAL RECESSIVE trait

Sire	Dam	Offspring

clear	clear	100% clear

clear	carrier	50% clear + 50% carriers

clear	affected	100% carriers

carrier	clear	50% clear + 50% carriers

carrier	carrier	25% clear + 25% affected + 50% carriers

carrier	affected	50% carriers + 50% affected

affected	clear	100% carriers

affected	carrier	50% carriers + 50% affected

affected	affected	100% affected

Clear

Genotype: N / N [ Homozygous normal ]

The cat is noncarrier of the mutant gene.
It is very unlikely that the cat will develop Hypokalemia / Familial Episodic Hypokalaemic Polymyopathy (BHK). The cat will never pass the mutation to its offspring, and therefore it can be bred to any other cat.

Carrier

Genotype: N / BHK [ Heterozygous ]

The cat carries one copy of the mutant gene and one copy of the normal gene.
It is very unlikely that the cat will develop Hypokalemia / Familial Episodic Hypokalaemic Polymyopathy (BHK) but since it carries the mutant gene, it can pass it on to its offspring with the probability of 50%.
Carriers should only be bred to clear cats.
Avoid breeding carrier to carrier because 25% of their offspring is expected to be affected (see table above)

Affected

Genotype: BHK / BHK [ Homozygous mutant ]

The cat carries two copies of the mutant gene and therefore it will pass the mutant gene to its entire offspring.
The cat is likely to develop Hypokalemia / Familial Episodic Hypokalaemic Polymyopathy (BHK) and will pass the mutant gene to its entire offspring

Sample Requirements

Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.

Turnaround

1-2 weeks

Price

£ 48.00 (including VAT)

To order:

Download Order Form from this link
Complete the order form and send it together with your samples to the following address:
Laboklin (UK), Unit 20, Wheel Forge Way, Trafford Park, Manchester, M17 1EH
Buccal swabs and EDTA tubes are available from us free of charge, to order, please use the online form <Request sample collection materials> or email: info@laboklin.co.uk.
If you are sending swab samples, please follow the instructions on this link .

If you have any queries, please contact us on 0161 282 3066

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Sire

Dam

Offspring