The development of the normal Schirmer tear test results during the dog's first year of life.

Autor: de Sampaio MOB; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., Moore BA; Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA., de Seabra NM; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., Bortolini M; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., Vieira TC; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., Martins CB; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., de Souza ALG; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil., Martins CM; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil.; Departamento de Medicina, Universidade Estadual de Ponta Grossa, Ponta Grossa, Brazil.; AAC&T Consultoria em Pesquisa LTDA, Curitiba, Brazil., Montiani-Ferreira F; Veterinary Medicine Department, Federal University of Parana, Curitiba, Brazil.
Jazyk: angličtina
Zdroj: Veterinary ophthalmology [Vet Ophthalmol] 2023 May; Vol. 26 (3), pp. 184-190. Date of Electronic Publication: 2023 Mar 21.
DOI: 10.1111/vop.13087
Abstrakt: Objective: To evaluate the relationship between lacrimation and age in a homogeneous group of healthy beagle dogs during the first year of life.
Materials and Methods: Schirmer tear test I (STT I) was performed at an interval of 12-15 days in both eyes of 16 clinically healthy beagle dogs (eight males and eight females) from 94 to 361 days of age. Three different quadratic polynomial regression equations were estimated for the variation in lacrimation: (1) for the entire period (19 observations), (2) for observations 1-4 (days 94-136), and (3) for observations 5-19 (days 150-361).
Results: By fitting quadratic regression equations to different phases of tear production during the dog's first year of life, it was possible to see that with each day of life, lacrimation increased 0.08 times (8%). From days 94 to 136, however, lacrimal production fell 1.1 times with each day of life. From day 150 to 361, production increased by 0.02 (2%) each day of life. In addition, there was a positive significant and moderate linear correlation between body weight and STT I values (p = .01).
Conclusion: In dogs, during the first year of life, STT I data distribution is parabolic in shape. Age significantly affected tear production. STT I decreased at approximately 108-121 days of age and increased thereafter. Body weight was a significant factor for STT I in young dogs. The establishment of this normal pattern of lacrimation is important for both clinical practitioners and laboratory studies.
(© 2023 American College of Veterinary Ophthalmologists.)
Databáze: MEDLINE
Externí odkaz: