LABOKLIN (UK)| Genetic Diseases | Dogs| Havanese (Bichon) DNA bundle (DM exon 2 + F8 + IVDD-risk + MTC + Furnishing)
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new test:      Paradoxical Pseudomyotonia (PP) in English Cocker and English Springer Spaniels  
new test:      Dyserythropoietic Anemia and Myopathy Syndrome (DAMS) in English Springer Spaniel
new test:      Lysosomal Storage Diseases (LSD) in Dalmatian and Doberman  
new Kennel Club DNA testing schemes with LABOKLIN:
   Osteochondrodysplasia (OCD) / Skeletal Dwarfism in Miniature Poodles
  DINGS2: Deafness with Vestibular Dysfunction in Doberman
   Dyserythropoietic Anemia and Myopathy Syndrome (DAMS) in English Springer Spaniel


Havanese (Bichon) DNA bundle (DM exon 2 + F8 + IVDD-risk + MTC + Furnishing)

Test number: 8929

Price: £ 138.00 (including VAT) for all 5 tests

  1 ) Degenerative Myelopathy / Degenerative Radiculomyelopathy) DM (Exon 2) / SOD1

Breeds
Airedale Terrier , Alaskan Malamute , All Dog Breeds , American Eskimo , Bernese Mountain Dog , Bloodhound , Borzoi (Russian Wolfhound) , Boxer , Cavalier King Charles Spaniel , Canaan Dog , Welsh Corgi (Cardigan) , Chesapeake Bay Retriever , Cockapoo (English) , Cockapoo (American) , Fox Terrier , French Bull Dog , German Shepherd , Glen Of Imaal Terrier ( GIT ) , Golden Retriever , Goldendoodle , Pyrenean Mountain Dog (Great Pyrenees) , Hovawart , Pumi ( Hungarian Pumi / Pumik ) , Jack Russell Terrier , Kerry Blue Terrier , Labradoodle , Labrador Retriever , Lakeland Terrier , Northern Inuit (Tamaskan / British Timber Dog) , Nova Scotia Duck tolling Retriever ( NSDTR / Toller) , Pembroke Welsh Corgi , Poodle , Pug , Rhodesian Ridgeback , Rough Collie , Soft Coated Wheaten Terrier , Shetland Sheepdog (Sheltie) , Smooth Collie , Utonagan , Wire Fox Terrier .
Kennel Club
This test is part of the Official UK Kennel Club DNA Testing Scheme in Chesapeake Bay Retriever, French Bull Dog, German Shepherd, Nova Scotia Duck tolling Retriever ( NSDTR / Toller), Rough Collie, and Smooth Collie.

for UK registered dogs, Laboklin can send results of the tests which are part of the Official UK Kennel Club DNA testing scheme to the Kennel Club (KC) to be recorded and published as part of the Kennel Club scheme. Results will only be recorded and published by the KC if the result report includes the dog’s microchip or tattoo number along with either the dog’s registered name or registered number. Any test results that do not carry these identifying features will not be recorded by the Kennel Club.

In order to ensure that test results are sent to the Kennel Club, customers must also sign the declaration section on the order form to give Laboklin permission to do so.

important: When you sign the declaration, Laboklin will send the results to the KC on your behalf, and you do not need to send them to the KC yourself again to avoid unnecessary duplications.

The Disease
Canine degenerative myelopathy (also known as chronic degenerative radiculomyelopathy) is a progressive disease of the spinal cord in older dogs. The disease has an insidious onset typically between 7 and 14 years of age. It begins with a loss of coordination (ataxia) in the hind limbs. As of July 15, 2008 the mutated gene responsible for DM has been found present in 43 breeds including German Shepherds, Boxers, Chesapeake Bay Retrievers, Rhodesian Ridgebacks, and both breeds of Welsh Corgis. The disease is chronic and progressive, and resulting in paralysis.
Clinical Signs
Degenerative myelopathy initially affects the back legs and causes muscle weakness and loss, and lack of coordination. These cause a staggering effect that may appear to be arthritis. The dog may drag one or both rear paws when it walks. This dragging can cause the nails of one foot to be worn down. The condition may lead to extensive paralysis of the back legs. As the disease progresses, the animal may display symptoms such as incontinence and has considerable difficulties with both balance and walking. If allowed to progress, the animal will show front limb involvement and extensive muscle atrophy. Eventually cranial nerve or respiratory muscle involvement necessitates euthanasia. Progression of the disease is generally slow but highly variable. The animal could be crippled within a few months, or may survive up to three years
Description

SOD1-Gene

Please note that Exon 2 can be found in all dog breeds, there is another DM mutation in Exon 1 which can only be found in Bernese Mountain Dog, click here for more information.

For bernese Mountain Dog we have a special offer for both Exon 1 and Exon 2 at reduced price, click here for more details.

Trait of Inheritance
Tow alleles are invloved in Degenerative Myelopathy, A and G, therefore a test result can be A/A, A/G, or G/G.

Mode of inheritance is autosomal recessive with variable penetrance;

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 dog is noncarrier of the mutant gene.

It is very unlikely that the dog will show signs of the Degenerative Myelopathy

 

Carrier

Genotype: N / DM (Exon 2) [ Heterozygous ]

The dog carries one copy of the mutant gene and one copy of the normal gene.

It is very unlikely that the dog will show signs of the Degenerative Myelopathy

 

Affected

Genotype: DM (Exon 2) / DM (Exon 2) [ Homozygous mutant ]

 

The dog carries two copies of the mutant gene and therefore it will pass the mutant gene to its entire offspring.

The dog may or may not show signs of the disease
Sample Requirements
Buccal Swabs or 0.5 - 1 ml blood in EDTA Blood Tube
Turnaround
2-3 weeks

  2 ) Haemophilia A (factor VIII deficiency / F8 )

This is a LABOKLIN patented/licenced
Breed
Havanese - Bichon Havanese .
The Disease
Haemophilia A is one of the most important inherited disorders of haemostasis in Havanese Dogs. The underlying pathomechanism of Haemophilia A is a lack or decreased activity of factor VIII that plays a critical role in the coagulation cascade. Affected dogs present with hemorrhage that can vary from mild to severe depending on the degree of the disease. The clinical signs include haematomas of large sizes, bleeding of the nose, skin, muscles and joints. If the disease is severe and no precautions are taken, affected dogs can bleed to death after surgery or injury. In cooperation with Prof. Dr. Mischke (Tierärztliche Hochschule Hannover) LABOKLIN was able to identify a SINE insert in exon 14 of the factor VIII gene that is responsible for the lack of active factor VIII protein in Havanese Dogs.
Haemophilia A is a sex-linked disorder (x-chromosomal recessive). Male dogs express the disease when they have one mutated x-chromosome. The mutated x-chromosome comes from the bitch. In most cases female dogs are carrier of one mutated x-chromosome without being diseased (conductor). According to Mendel's Law of Inheritance, 50% of the male puppies of a carrier bitch will have the mutated x-chromosome and express the disease and 50% of the female puppies will be healthy carriers (conductors). Female dogs will be diseased when they have two mutated x-chromosomes (one from the mother, one from the father). In that case both, father and mother must have the mutated x-chromosome (e.g. diseased male dog bred to conductor bitch).
Description

DNA test

The mutation responsible for haemophilia A can now be identified using our DNA-test. The test can be performed on dogs of any age and even puppies can be tested. The DNA test does not only differentiate healthy and diseased dogs, but furthermore identifies healthy carrier (female) dogs. This is of crucial importance for dog breeders.
To achieve a maximum reliability of the test result, we perform the DNA-test of each submitted sample in two independent test runs.

Trait of Inheritance
There are 3 possible genotypes:
1. Homozygous healthy:
Genotype female: N(X)/N(X),
Genotype male: N(X)/Y (homozygous healthy)
A dog like this is healthy and does not carry the mutated x-chromosome.
Offspring of this dog will not get the mutated x-chromosome.

2. Heterozygous carrier (only female):
Genotype female: N(X)/FVIII(X) (heterozygous carrier)
A bitch like this carries one copy of the mutated gene. It is unlikely that the bitch will suffer from haemophilia A, however there is a 50% chance that she will pass on the mutation to her offspring.

3. Homozygous affected:
Genotype female FVIII(X)/FVIII(X) (homozygous affected)
Genotype male FVIII(X)/Y (hemizygous affected)
Because of the x-chromosomal mode of inheritance, a homozygous affected female dog carries two mutated x-chromosomes and a hemizygous affected male dog carries one mutated x-chromosome. Female and male affected dogs have a high risk to express haemophilia A. The bitch will pass on the mutation to a 100% of her offspring and 50% of the offspring of the male dog will get the mutated x-chromosome.

Inheritance : X-LINKED RECESSIVE trait

 

Sire

  Dam   Offspring
        Males   Females
clear
clear
100% clear
 
100% clear
             
clear
carrier
50%  clear + 50% affected
 
50%  clear + 50% carriers
             
clear
affected
100% affected
 
100% carriers
             
affected
clear
100%  clear
 
100%  carriers
             
affected
carrier
50% affected + 50% clear
 
50% affected + 50% carriers
             
affected
affected
100% affected
 
100% affected

 


Male:

Clear

Genotype: N [ normal ]

The dog is noncarrier of the mutant gene.

The dog will never develop Haemophilia A (factor VIII deficiency / F8 ) and therefore it can be used in breeding and should only be bred to clear females.

 

Affected

Genotype: FVIII [ mutant ]

 

The dog carries the mutant gene and will pass it its entire female offspring.

The dog will develop Haemophilia A (factor VIII deficiency / F8 ) and will pass the mutant gene to its entire female offspring

Female:

Clear

Genotype: N / N [ Homozygous normal ]

The dog is noncarrier of the mutant gene.

The dog will never develop Haemophilia A (factor VIII deficiency / F8 ) and therefore it can be used in breeding and should only be bred to clear females.

 

Carrier

Genotype: N / FVIII [ Heterozygous ]

The dog carries one copy of the mutant gene and one copy of the normal gene.

The dog will never develop Haemophilia A (factor VIII deficiency / F8 ) but since it carries the mutant gene, it can pass it on to its offspring.

 

Affected

Genotype: FVIII / FVIII [ Homozygous mutant ]

 

The dog carries two copies of the mutant gene and therefore it will pass the mutant gene to its entire offspring.

The dog will develop Haemophilia A (factor VIII deficiency / F8 ) and will pass the mutant gene to its entire female offspring
Sample Requirements
Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.
Turnaround
2-3 weeks

We will run this test 2 independant times on your sample to ensure that the result is 100% accurate


  3 ) Chondrodystrophy (CDDY with IVDD Risk) and Chondrodysplasia (CDPA)

Breeds
All Dog Breeds , American Cocker Spaniel , Basset Hound , Beagle , Bichon Frise , Cavalier King Charles Spaniel , Welsh Corgi (Cardigan) , Chesapeake Bay Retriever , Chihuahua , Coton de Tulear , Dachshund , Dandie Dinmont Terrier , English Springer Spaniel , French Bull Dog , Havanese - Bichon Havanese , Jack Russell Terrier , Miniature Poodle , Miniature Wire haired Dachshund , Miniature Long Haired Dachshund , Miniature Smooth Haired Dachshund , Nova Scotia Duck tolling Retriever ( NSDTR / Toller) , Papillon (Continental Toy Spaniel ) , Pekingese , Pembroke Welsh Corgi , Portuguese Waterdog , Scottish Terrier , Shih Tzu , Toy Poodle , West Highland White Terrier , Welsh Corgi .
Description

Chondrodystrophy (CDDY with IVDD Risk) and Chondrodysplasia (CDPA)

The test checks for two mutations: CDDY with IVDD Risk, and CDPA, and so you will receive two results, one for each mutation.

Chondrodystrophy CDDY (FGF4-12) which causes short legs and the risk of developing Intervertebral Disc Disease (IVDD).

Chondrodysplasia CDPA (FGF4-18), which causes the short legged phenotype in a number of breeds.

Chondrodystrophy (CDDY with IVDD Risk) is a trait that is common to many dog breeds and it is characterised by shorter legs due to shorter long bones. CDDY can also be associated with Intervertebral Disc Disease (IVDD) due to premature degeneration of the intervertbral disc. The intervertebral disc lie between the vertebrae and it is made of a cartilage which separate vertebrae from each other, absorb shocks and allow slight movement of the vertebrae. In affected dogs, premature calcification of part of the disc at early age (from birth to 1 year of age) results in degeneration of all discs in young dogs. These abnormal discs are susceptible to herniation into the spinal canal where the inflammation, and hemorrhage can cause severe pain and neurological dysfunction. CDDY is inherited as a semi-dominant trait which means that dogs with 2 copies of the mutation are smaller than dogs with only 1 copy. As for IVDD, the inheritance follows a dominant mode, meaning that 1 copy of CDDY mutation is sufficient to predispose dogs to IVDD.

The CDDY mutation has been found in breeds such as: Basset Hound, Beagle, Bichon Frise, Cardigan Welsh Corgi, Cavalier King Charles Spaniel, Chesapeake Bay Retriever, Chihuahua, American Cocker Spaniel, Coton de Tulear, Dachshund, Dandie Dinmont Terrier, English Springer Spaniel, French Bulldog, Havanese, Jack Russell Terrier, Nova Scotia Duck Tolling Retriever, Pekingese, Pembroke Welsh Corgi, Poodle (Miniature and Toy), Portuguese Water Dog, Scottish Terrier, Shih Tzu.

The second mutation CDPA explains the short-legged phenotype known as chondrodysplasia (CDPA) in breeds such as Basset Hound, Pembroke Welsh Corgi, Dachshunds, West Highland White Terriers and Scottish Terriers. CDPA inheritance is considered to follow am autosomal dominant mode.

In some breeds both mutations are present and so breeders will be able to plan breeding to reduce occurrence of CDDY, while retaining the short-legged phenotype CDPA.

 
Further reading
FGF4 retrogene on CFA12 is responsible for CDDY and IVDDHTML file
Phenotypic Effects of FGF4 on IVDD (2019)HTML file
Sample Requirements
Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.
Turnaround
1-3 weeks

  4 ) Macrothrombocytopenia ( MTC-D )

Breeds
American Cocker Spaniel , Bichon Frise , Boxer , Cavalier King Charles Spaniel , Cavapoo , Chihuahua , Cocker Spaniel , Dwarf poodle , English Cocker Spaniel , Havanese - Bichon Havanese , Jack Russell Terrier , Labrador Retriever , Maltese , Miniature Poodle , Parson Russell Terrier (PRT) , Poodle , Shih Tzu , Standard Poodle , Toy Poodle .
Description

Macrothrombocytopenia ( MTC ) is inherited as an autosomal dominant trait characterized by low platelet count and the presence of some larger than normal platelets in circulation.

Unlike acquired macrothrombocytopenia (thrombocytopenias secondary to infectious agents, medications, immune-mediated causes), this form does not respond to treatment.

It is important to note that these dogs may mistakenly be considered to have an underlying disease that results in thrombocytopenia, such as immune-mediated thrombocytopenia, tick-borne infection, or a bone marrow disorder.

TC ) is inherited as an autosomal dominant trait and results can be Clear (N/N), Affected heterozygous (N / MTC), Affected homozygous (MTC / MTC)

A RECESSIVE form of MTC is found in other breeds click on the following link for further details: Recessive Macrothrombocytopenia (MTC) .

Trait of Inheritance
.

Inheritance : AUTOSOMAL DOMINANT trait
 
Further reading
Macrothrombocytopenia in a Cavalier King Charles SpanielPDF file
Sample Requirements
Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.
Turnaround
2-3 weeks

  5 ) Furnishings

Breeds
All Dog Breeds , Barbet (French Water Dog) , Griffon Bruxellois (Brussels Griffon) , Chinese Crested , Dachshund , German Wirehaired Pointer , Havana Silk Dog , Havanese - Bichon Havanese , Hungarian Vizsla (Magyar Vizsla / Smooth haired) , Lagotto Romagnolo , Soft Coated Wheaten Terrier , Various dog breeds , Hungarian Wirehaired Vizsla (Vizslak) .
Description

Furnishings refer to the longer facial hair around the eyebrows, moustache, and beard commonly seen in many breeds, including the wirehaired breeds. Presence of furnishings is dominant to the unfurnished version of the gene, which depending on breed may also be referred to as satin, or sleek. LABOKLIN offers a test to see if a furnished dog carries the recessive unfurnished trait.

This coat variant is called 'improper coat' in portuguese waterdogs.

In Hungarian Wirehaired Vizsla (Vizslak) this it is called Wirehair.

 
Further reading
Coat Colour Inheritance Chartshtml file
Sample Requirements
Whole blood in EDTA tube (0.5 - 1 ml) or Buccal Swabs.
Turnaround
1-3 weeks
Price for the above 5 tests
£ 138.00 (including VAT)

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