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Pyruvate Kinase Deficiency

Pyruvate kinase deficiency

CatDogHitnost: ModerateKoliko je često: Uncommon

Ukratko

Pyruvate kinase deficiency is an uncommon inherited enzyme disorder in dogs and cats that causes red blood cells to break down prematurely. This leads to chronic anemia, bone marrow scarring, and potential liver failure. Learn how to recognize the signs, how vets diagnose it using genetic testing, and what this diagnosis means for your pet's future.

A dog and a cat sitting side-by-side looking tired, representing species affected by pyruvate kinase deficiency.
Pyruvate kinase deficiency is an inherited condition that can affect both dogs and cats.

TL;DR. Nasljedna bolest s ranom hemolizom, kroničnom anemijom i fibrozom koštane srži u psa i mačke.

Može zahvatiti pse i mačke.

Što je to?

Autosomno recesivni enzimski defekt: eritrociti ne stvaraju dovoljno ATP glikolizom i rano hemoliziraju. Kompenzacijska regeneracija, zatim mijelofibroza/osteoskleroza i oštećenje jetre željezom.

"Although heritable HA is relatively uncommon, heritable defects may be common in a given breed... When present, hemolysis is more likely to be detected in young adults than in puppies or kittens."

Uzroci i čimbenici rizika

Samo nasljedno. Nosioci zdravi. Bolesni imaju dva mutirana alela. Znakovi često u mlađoj odrasloj dobi. Povezano s više pasmina pasa i mačaka.

Znakovi

  • Anemija (kardinalna)
  • Letargija, bljedilo, netolerancija napora, manja aktivnost (često)
  • Mijelofibroza/osteoskleroza (često, progresivno)
  • Ikterus; zatajenje jetre od hemosideroze (ponekad)

Close-up of a cat's pale gums, illustrating pallor, a common sign of anemia.
Blijede desni: ključni znak anemije.

Dijagnostika

KKS (prvo regenerativna, kasnije neregnerativna); enzimski testovi u specijaliziranim labovima; DNA zlatni standard za bolesne i nosioce.

A veterinary laboratory setup with a blood sample and a DNA analysis screen, representing genetic testing.
Genetski test je zlatni standard.

Liječenje

Nema izlječenja. Potporno: transfuzije u krizi; pažljivo upravljanje željezom; splenektomija od slučaja do slučaja; presađivanje srži rijetko izvedivo.

Prognoza

Psi: oprezna do loša; često pogoršanje u 3–5. godini. Mačke: varijabilnije; neke žive godinama s kroničnom anemijom uz praćenje.

Prevencija

Genetski screening prije uzgoja; nikad ne sparivati dva nosioca.

Kada zvati veterinara

Hitno pri kolapsu, otežanom disanju, ikterusu, tamnoj mokraći ili odbijanju hrane/vode.

Izvori

  • Small Animal Critical Care Medicine, 2nd Edition, p. 653
  • Internal Medicine, 5th Edition, p. 1235

My highlights & notes

Znakovi i simptomi

Pasmine s višim rizikom

Kako se dijagnosticira

  • Genetic testsZlatni standard
  • Physical and functional tests of the RBC

Česta pitanja

What is Pyruvate Kinase Deficiency?

Pyruvate kinase deficiency is an uncommon inherited enzyme disorder in dogs and cats that causes red blood cells to break down prematurely. This leads to chronic anemia, bone marrow scarring, and potential liver failure. Learn how to recognize the signs, how vets diagnose it using genetic testing, and what this diagnosis means for your pet's future.

What are the symptoms of Pyruvate Kinase Deficiency?

Anaemia (pale gums)、Decreased overall activity、Lethargy、Myelofibrosis、Osteosclerosis、Tiring easily during activity、Pallor、Hemosiderosis-associated hepatic failure

How is Pyruvate Kinase Deficiency diagnosed?

Genetic tests、Physical and functional tests of the RBC

Izvori

  1. Small Animal Critical Care Medicine, 2nd Edition (VetBooks.ir) · p. 653
  2. Small Animal Critical Care Medicine, 2nd Edition (VetBooks.ir) · p. 653
  3. Internal Medicine 5th · p. 1235

Ovaj članak je opća edukacija i ne zamjenjuje veterinarski savjet. Ako je ljubimac bolestan, obratite se veterinaru.

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