1
|
Romão FG, Dos Santos B, Mora SEV, Gonçalves DS, de Marco V, Lopes PA, Tsunemi MH, Takahira RK. Evaluation of coagulation profile in dogs with ACTH-dependent hyperadrenocorticism compared to healthy dogs by rotational thromboelastometry (ROTEM). Vet J 2024; 305:106141. [PMID: 38777303 DOI: 10.1016/j.tvjl.2024.106141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
Despite their low morbidity, thromboembolic events in hyperadrenocorticism are associated with high mortality. Identifying the main hemostatic abnormalities will improve the prophylactic approach of these canine patients. The aim of this study was to evaluate hemostatic alterations related with ACTH-dependent HAC and its association with hypercoagulable state. For this purpose, 25 dogs diagnosed with ACTH-dependent HAC were compared with 28 healthy dogs as a control group. The hemostatic variables included platelet count, antithrombin, fibrinogen, D-dimer, PT, aPTT, rotational thromboelastometry (ROTEM) and platelet aggregation. Results showed a hypercoagulable state in 32% (8/25) dogs by ROTEM, which had at least 2 of the next features: decreased coagulation time (CT) or clot formation time (CFT) on INTEM (5/25) or EXTEM (4/25); increased maximum clot firmness (MCF) on INTEM (9/25), EXTEM (6/25) and FIBTEM (9/25). These same variables had a significant difference (P≤ 0.05) compared with the control group, as well as the parameters of α-angle and CT. Median fibrinogen levels (310 vs.178 mg/dL), mean platelet aggregation (11.1 vs. 7.9 Ohms), median platelet count (360 vs. 225 ×103/µL) and mean antithrombin activity (140 vs. 119%) were increased in ACTH-dependent HAC dogs compared to control group. PT (7.1 vs. 8.0 seconds) and aPTT (11.6 vs. 15.2 seconds) were also shortened in ACTH-dependent HAC dogs. Our findings confirm the presence of a hypercoagulable tendency in dogs with HAC. Although multifactorial, fibrinogen concentration and MCF FIBTEM showed the relevance of this protein for hypercoagulability in HAC.
Collapse
Affiliation(s)
- F G Romão
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University, s/n, Postal code 237, Botucatu, SP, Brazil.
| | - B Dos Santos
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, São Paulo, SP 05508-270, Brazil
| | - S E V Mora
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University, s/n, Postal code 237, Botucatu, SP, Brazil
| | - D S Gonçalves
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University, s/n, Postal code 237, Botucatu, SP, Brazil
| | - V de Marco
- Naya Especialidades Veterinárias, São Paulo, SP 04608-003, Brazil
| | - P A Lopes
- Naya Especialidades Veterinárias, São Paulo, SP 04608-003, Brazil
| | - M H Tsunemi
- Department of Biodiversity and Biostatistics, Bioscience Institute, São Paulo State University, s/n, Postal code 237, Botucatu, SP, Brazil
| | - R K Takahira
- Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University, s/n, Postal code 237, Botucatu, SP, Brazil
| |
Collapse
|
2
|
Pereira DCA, Teixeira-Neto RG, Lopes VV, Pena HP, Paz GF, Custodio CHX, Belo VS, da Fonseca Júnior AA, da Silva ES. Development of quantitative PCR and digital PCR for the quantification of Leishmania infantum in dogs. Mol Cell Biochem 2023; 478:2445-2450. [PMID: 36790551 DOI: 10.1007/s11010-023-04672-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 02/02/2023] [Indexed: 02/16/2023]
Abstract
Leishmaniasis is a zoonotic disease with worldwide distribution. In the Americas, the causative agent of the visceral form is the protozoa Leishmania (Leishmania) infantum. Transmission to the host or vertebrate reservoir occurs through the bite of infected arthropod females like Lutzomyia longipalpis. The epidemiological connection between the infection in dogs and humans generate constant studies about the relationship between the parasite and the canine host, including the development of methods and tests for the detection and quantification ofLeishmania (L.) infantum. Both conventional PCR (cPCR) and quantitative PCR (qPCR) can be used in the diagnosis of the parasite. Dropet Digital PCR (ddPCR) is another useful tool. Knowing the parasite load and its relationship with the clinical signs of naturally infected dogs is useful in research development and for establishing treatments that reduce the transmission of the disease. In this study, thirty-nine clinical samples of spleen from dogs naturaly infected by L. infantum were collected after necropsy. Two molecular tools were used to quantify the parasite load (qPCR and ddPCR) and there was 100% agreement in the results of the them. The tools developed in this work are important for the detection of L. infantum in dogs and humans. Droplet Digital PCR does not require a standard curve and is easy to standardize. In such manner, this new tool can generate more in-depth information in the broad debate about parasitic loads and the pathogenesis of leishmaniasis.
Collapse
Affiliation(s)
| | | | - Valeriana Valadares Lopes
- Universidade Federal de São João Del Rei (UFSJ), Campus Centro-Oeste Dona Lindu, Divinópolis, Brazil
| | - Héber Paulino Pena
- Universidade Federal de São João Del Rei (UFSJ), Campus Centro-Oeste Dona Lindu, Divinópolis, Brazil
| | | | | | - Vinícius Silva Belo
- Universidade Federal de São João Del Rei (UFSJ), Campus Centro-Oeste Dona Lindu, Divinópolis, Brazil
| | | | - Eduardo Sérgio da Silva
- Universidade Federal de São João Del Rei (UFSJ), Campus Centro-Oeste Dona Lindu, Divinópolis, Brazil.
| |
Collapse
|