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Yamanaka R, Ichii O, Nakamura T, Otani Y, Namaba T, Kon Y. Effects of autoimmune abnormalities on fertility and placental morphology in mice. Autoimmunity 2024; 57:2319209. [PMID: 38389171 DOI: 10.1080/08916934.2024.2319209] [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: 09/28/2023] [Accepted: 02/11/2024] [Indexed: 02/24/2024]
Abstract
Autoimmune diseases (AIDs) alter the placental immune environment leading to fetal loss. This study investigated the effects of AIDs on pregnancy and the placenta in AID-prone MRL/MpJ-Faslpr/lpr mice and wild-type MRL/MpJ, which were mated with male MRL/MpJ and MRL/MpJ-Faslpr/lpr at five months and defined as moLpr and moMpJ, respectively. AID indices (spleen weight and serum autoantibody levels) and fertility status (number and size of fetuses, morphology, and comprehensive gene expression of placentas) were evaluated on gestational day 15.5. Both strains showed equivalent fertility, but moLpr showed lighter placentas and fetuses than moMpJ, and decreased fertility with AID severity. moLpr placentas had a higher number of T cells, higher expression of genes associated with T helper 2 and T follicular helper functions, and altered expression of genes (Krt15, Slc7a3, Sprr2a3) that significantly regulate pregnancy or immunity. The gene expression of T cell migration-associated chemokines (Ccl5, Cxcl9) was significantly increased in moLpr placentas, and CCL5 and CXCL9 were detected in moLpr placentas, particularly in T cells and placenta-component cells, respectively. Thus, AID altered placental morphofunction and fertility in mice; however, fertility was maintained at the examined time points. This study enhances our understanding of placental alterations and gestational risk due to AIDs.
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Affiliation(s)
- Risa Yamanaka
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Hokkaido University, Sapporo, Japan
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Hokkaido University, Sapporo, Japan
- Laboratory of Agrobiomedical Science, Faculty of Agriculture, Hokkaido University, Sapporo, Japan
- One Health Research Center, Hokkaido University, Sapporo, Japan
| | - Teppei Nakamura
- Laboratory of Agrobiomedical Science, Faculty of Agriculture, Hokkaido University, Sapporo, Japan
- Laboratory of Laboratory Animal Science and Medicine, Department of Applied Veterinary Sciences, Hokkaido Universityty, Sapporo, Japan
| | - Yuki Otani
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Hokkaido University, Sapporo, Japan
- One Health Research Center, Hokkaido University, Sapporo, Japan
| | - Takashi Namaba
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Hokkaido University, Sapporo, Japan
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Hokkaido University, Sapporo, Japan
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LeVine DN, Goggs R, Kohn B, Mackin AJ, Kidd L, Garden OA, Brooks MB, Eldermire ERB, Abrams‐Ogg A, Appleman EH, Archer TM, Bianco D, Blois SL, Brainard BM, Callan MB, Fellman CL, Haines JM, Hale AS, Huang AA, Lucy JM, O'Marra SK, Rozanski EA, Thomason JM, Walton JE, Wilson HE. ACVIM consensus statement on the treatment of immune thrombocytopenia in dogs and cats. J Vet Intern Med 2024; 38:1982-2007. [PMID: 38779941 PMCID: PMC11256181 DOI: 10.1111/jvim.17079] [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: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 05/25/2024] Open
Abstract
Management of immune thrombocytopenia (ITP) in dogs and cats is evolving, but there are no evidence-based guidelines to assist clinicians with treatment decisions. Likewise, the overall goals for treatment of ITP have not been established. Immunosuppressive doses of glucocorticoids are the first line treatment, but optimal treatment regimens beyond glucocorticoids remain uncertain. Additional options include secondary immunosuppressive drugs such as azathioprine, modified cyclosporine, and mycophenolate mofetil, usually selected based on clinician preference. Vincristine, human IV immunoglobulin (hIVIg), and transfusion of platelet or red blood cell-containing products are often used in more severe cases. Splenectomy and thrombopoietin receptor agonists are usually reserved for refractory cases, but when and in which patient these modalities should be employed is under debate. To develop evidence-based guidelines for individualized treatment of ITP patients, we asked 20 Population Intervention Comparison Outcome (PICO) format questions. These were addressed by 17 evidence evaluators using a literature pool of 288 articles identified by a structured search strategy. Evidence evaluators, using panel-designed templates and data extraction tools, summarized evidence and created guideline recommendations. These were integrated by treatment domain chairs and then refined by iterative Delphi survey review to reach consensus on the final guidelines. In addition, 19 non-PICO questions covering scenarios in which evidence was lacking or of low quality were answered by expert opinion using iterative Delphi surveys with panelist integration and refinement. Commentary was solicited from multiple relevant professional organizations before finalizing the consensus. The rigorous consensus process identified few comparative treatment studies, highlighting many areas of ITP treatment requiring additional studies. This statement is a companion manuscript to the ACVIM Consensus Statement on the Diagnosis of Immune Thrombocytopenia in Dogs and Cats.
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Affiliation(s)
- Dana N. LeVine
- Department of Clinical Sciences, College of Veterinary MedicineAuburn UniversityAuburnAlabamaUSA
| | - Robert Goggs
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Barbara Kohn
- Small Animal Clinic, School of Veterinary MedicineFreie Universität BerlinBerlinGermany
| | - Andrew J. Mackin
- Department of Clinical Sciences, College of Veterinary MedicineMississippi State UniversityMississippi StateMississippiUSA
| | - Linda Kidd
- Linda Kidd Veterinary Internal Medicine ConsultingCarlsbadCaliforniaUSA
| | - Oliver A. Garden
- School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Marjory B. Brooks
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Erin R. B. Eldermire
- Flower‐Sprecher Veterinary Library, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Anthony Abrams‐Ogg
- Department of Clinical Studies, Ontario Veterinary CollegeUniversity of GuelphGuelphOntarioCanada
| | | | | | - Domenico Bianco
- College of Veterinary MedicineWestern University of Health SciencesPomonaCaliforniaUSA
| | - Shauna L. Blois
- Department of Clinical Studies, Ontario Veterinary CollegeUniversity of GuelphGuelphOntarioCanada
| | - Benjamin M. Brainard
- Department of Small Animal Medicine and Surgery, College of Veterinary MedicineUniversity of GeorgiaAthensGeorgiaUSA
| | - Mary Beth Callan
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Claire L. Fellman
- Department of Clinical Sciences, Cummings School of Veterinary MedicineTufts UniversityNorth GraftonMassachusettsUSA
| | - Jillian M. Haines
- Department of Veterinary Clinical Sciences, College of Veterinary MedicineWashington State UniversityPullmanWashingtonUSA
| | | | | | | | - Shana K. O'Marra
- Northwest Veterinary Critical Care ServicesVancouverWashingtonUSA
| | - Elizabeth A. Rozanski
- Department of Clinical Sciences, Cummings School of Veterinary MedicineTufts UniversityNorth GraftonMassachusettsUSA
| | - John M. Thomason
- Department of Clinical Sciences, College of Veterinary MedicineMississippi State UniversityMississippi StateMississippiUSA
| | - Jenny E. Walton
- Veterinary Apheresis Service UKWashingtonTyne and WearUnited Kingdom
| | - Helen E. Wilson
- Langford VetsUniversity of BristolLangfordSomersetUnited Kingdom
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3
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LeVine DN, Kidd L, Garden OA, Brooks MB, Goggs R, Kohn B, Mackin AJ, Eldermire ERB, Chang Y, Allen J, Christopherson PW, Glanemann B, Maruyama H, Naskou MC, Nielsen LN, Shropshire S, Viall AK, Birkenheuer AJ, Forman MA, Hanzlicek AS, Langner KF, Lashnits E, Lunn KF, Makielski KM, Roura X, Spada E. ACVIM consensus statement on the diagnosis of immune thrombocytopenia in dogs and cats. J Vet Intern Med 2024; 38:1958-1981. [PMID: 38752421 PMCID: PMC11256148 DOI: 10.1111/jvim.16996] [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: 12/20/2023] [Accepted: 01/16/2024] [Indexed: 07/19/2024] Open
Abstract
Immune thrombocytopenia (ITP) is the most common acquired primary hemostatic disorder in dogs. Immune thrombocytopenia less commonly affects cats but is an important cause of mortality and treatment-associated morbidity in both species. Immune thrombocytopenia remains a diagnosis of exclusion for which diagnostic guidelines are lacking. Primary, or non-associative, ITP refers to autoimmune platelet destruction. Secondary, or associative, ITP arises in response to an underlying disease trigger. However, evidence for which comorbidities serve as ITP triggers has not been systematically evaluated. To identify key diagnostic steps for ITP and important comorbidities associated with secondary ITP, we developed 12 Population Evaluation/Exposure Comparison Outcome (PECO) format questions. These questions were addressed by evidence evaluators utilizing a literature pool of 287 articles identified by the panelists using a structured search strategy. Evidence evaluators, using panel-designed templates and data extraction tools, summarized evidence and created guideline recommendations that then were integrated by diagnosis and comorbidity domain chairs. The revised PECO responses underwent a Delphi survey process to reach consensus on final guidelines. A combination of panel expertise and PECO responses were employed to develop algorithms for diagnosis of ITP in dogs and cats, which also underwent 4 iterations of Delphi review. Comorbidity evidence evaluators employed an integrated measure of evidence (IME) tool to determine evidence quality for each comorbidity; IME values combined with evidence summaries for each comorbidity were integrated to develop ITP screening recommendations, which also were subjected to Delphi review. Commentary was solicited from multiple relevant professional organizations before finalizing the consensus. The final consensus statement provides clinical guidelines for the diagnosis of, and underlying disease screening for, ITP in dogs and cats. The systematic consensus process identified numerous knowledge gaps that should guide future studies. This statement is a companion manuscript to the ACVIM Consensus Statement on the Treatment of Immune Thrombocytopenia.
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Affiliation(s)
- Dana N. LeVine
- Department of Clinical Sciences, College of Veterinary MedicineAuburn UniversityAuburnAlabamaUSA
| | - Linda Kidd
- Western University of Health Sciences College of Veterinary MedicinePomonaCaliforniaUSA
- Zoetis Animal Health DiagnosticsParsippanyNew JerseyUSA
| | - Oliver A. Garden
- School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Marjory B. Brooks
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Robert Goggs
- Department of Clinical Sciences, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Barbara Kohn
- Clinic for Small Animals, Faculty of Veterinary Medicine, Freie Universität BerlinBerlinGermany
| | - Andrew J. Mackin
- College of Veterinary MedicineMississippi State UniversityStarkvilleMississippiUSA
| | - Erin R. B. Eldermire
- Flower‐Sprecher Veterinary Library, College of Veterinary MedicineCornell UniversityIthacaNew YorkUSA
| | - Yu‐Mei Chang
- Department of Comparative Biomedical SciencesRoyal Veterinary CollegeLondonUK
| | - Julie Allen
- Veterinary Information NetworkDavisCaliforniaUSA
| | | | - Barbara Glanemann
- Department of Clinical Science and Services, Royal Veterinary CollegeUniversity of LondonLondonUK
| | - Haruhiko Maruyama
- Department of Veterinary Medicine, College of Bioresource SciencesNihon UniversityChiyoda CityJapan
| | - Maria C. Naskou
- Department of Pathobiology, College of Veterinary MedicineAuburn UniversityAuburnAlabamaUSA
| | - Lise N. Nielsen
- Department of Veterinary Clinical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Sarah Shropshire
- College of Veterinary Medicine and Biomedical SciencesColorado State UniversityFort CollinsColoradoUSA
| | - Austin K. Viall
- Department of Pathology, Microbiology, and ImmunologySchool of Veterinary Medicine, University of California, DavisDavisCaliforniaUSA
| | - Adam J. Birkenheuer
- College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | | | | | | | - Erin Lashnits
- School of Veterinary MedicineUniversity of WisconsinMadisonWisconsinUSA
| | | | - Kelly M. Makielski
- College of Veterinary MedicineUniversity of MinnesotaSt PaulMinnesotaUSA
| | - Xavier Roura
- Hospital Clinic Veterinari, Universitat Autonoma de BarcelonaBellaterraSpain
| | - Eva Spada
- Veterinary Transfusion Research Laboratory (REVLab), Department of Veterinary Medicine and Animal SciencesUniversity of MilanLodiItaly
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Osako H, Xu Q, Nabeshima T, Balingit JC, Nwe KM, Yu F, Inoue S, Hayasaka D, Ngwe Tun MM, Morita K, Takamatsu Y. Clinical Factors Associated with SFTS Diagnosis and Severity in Cats. Viruses 2024; 16:874. [PMID: 38932167 PMCID: PMC11209305 DOI: 10.3390/v16060874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is a potentially fatal tick-borne zoonosis caused by SFTS virus (SFTSV). In addition to tick bites, animal-to-human transmission of SFTSV has been reported, but little is known about feline SFTSV infection. In this study, we analyzed data on 187 cats with suspected SFTS to identify biomarkers for SFTS diagnosis and clinical outcome. Body weight, red and white blood cell and platelet counts, and serum aspartate aminotransferase and total bilirubin levels were useful for SFTS diagnosis, whereas alanine aminotransferase, aspartate aminotransferase and serum SFTSV RNA levels were associated with clinical outcome. We developed a scoring model to predict SFTSV infection. In addition, we performed a phylogenetic analysis to reveal the relationship between disease severity and viral strain. This study provides comprehensive information on feline SFTS and could contribute to the protection of cat owners, community members, and veterinarians from the risk of cat-transmitted SFTSV infection.
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Affiliation(s)
- Hiromu Osako
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Medical School, Nagasaki University, Nagasaki 852-8523, Japan
| | - Qiang Xu
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
| | - Takeshi Nabeshima
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
| | - Jean Claude Balingit
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Khine Mya Nwe
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Fuxun Yu
- Department of Central Laboratory, Guizhou Provincial People’s Hospital, Guiyang 550002, China
- National Health Commission (NHC) Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People’s Hospital, Guiyang 550002, China
| | - Shingo Inoue
- Kenya Research Station, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
| | - Daisuke Hayasaka
- Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Mya Myat Ngwe Tun
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
- Center for Vaccines and Therapeutic Antibodies for Emerging Infectious Diseases, Shimane University, Izumo 690-8504, Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- DEJIMA Infectious Disease Research Alliance, Nagasaki University, Nagasaki 852-8523, Japan
| | - Yuki Takamatsu
- Department of Virology, Institute of Tropical Medicine, Nagasaki University (ITM-NU), Nagasaki 852-8523, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
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Haginoya S, Thomovsky EJ, Johnson PA, Brooks AC. Clinical Assessment of Primary Hemostasis: A Review. Top Companion Anim Med 2023; 56-57:100818. [PMID: 37673175 DOI: 10.1016/j.tcam.2023.100818] [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: 12/17/2022] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/08/2023]
Abstract
Primary hemostatic disorders such as thrombocytopenia and thrombocytopathia are commonly encountered in small animal practice. The key stages of primary hemostasis include platelet adhesion, activation, and aggregation. Understanding the interaction between tissues, platelets, and signaling molecules not only helps clinicians comprehend clot formation but also better recognize thrombocytopathias. Although congenital thrombocytopathia is rare, commercially available platelet function tests allow veterinarians to narrow differentials in many clinical settings. Thrombocytopenia can be easily diagnosed in any clinical setting. In this paper, we review the current understanding of primary hemostasis in veterinary medicine, including the clinical presentation and available diagnostics to identify platelet abnormalities.
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Affiliation(s)
- Satoshi Haginoya
- Purdue University College of Veterinary Medicine, West Lafayette, IN, USA.
| | | | - Paula A Johnson
- Purdue University College of Veterinary Medicine, West Lafayette, IN, USA
| | - Aimee C Brooks
- Purdue University College of Veterinary Medicine, West Lafayette, IN, USA
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Clinicopathological Findings in Cats Tested for Feline Immunodeficiency Virus (FIV) and Feline Leukaemia Virus (FeLV). ACTA VET-BEOGRAD 2022. [DOI: 10.2478/acve-2022-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Abstract
This retrospective study aimed to evaluate the clinicopathological changes in a population of cats tested for feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV), in an Italian Veterinary University Hospital, in the period between January 2002 and May 2016. During the period of 14 years, 1834 cats were tested, and of these 241/1834 (13.1%) were positive for FIV antibodies and 92/1834 (5%) cats were positive for FeLV antigen. These data confirm the presence of a high prevalence of these viruses on Italian territory. To the authors’ knowledge, this study describes findings that have never been evaluated before, such as iron status in retrovirus-infected cats and urinalysis in FeLV-positive cats. In this study, FIV-positive cats were more likely to have higher serum protein concentration and lower albumin-globulin ratio than other groups of cats. Lower urine specific gravity and higher urine protein to creatinine ratio were also detected for FIV-positive cats when compared with negative and healthy cats. FeLV-positive cats were more likely to have cytopenia, decreased haemoglobin, haematocrit and RBC compared with other groups of cats. The data obtained underline the importance of considering retroviral infections in the presence of a broad spectrum of risk factors and laboratory anomalies.
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Miguel-Pastor L, Satué K, Chicharro D, Torres-Torrillas M, del Romero A, Peláez P, Carrillo JM, Cuervo B, Sopena JJ, Cerón JJ, Rubio M. Evaluation of a Standardized Protocol for Plasma Rich in Growth Factors Obtention in Cats: A Prospective Study. Front Vet Sci 2022; 9:866547. [PMID: 35498746 PMCID: PMC9047018 DOI: 10.3389/fvets.2022.866547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/24/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction Platelet-rich plasma (PRP) is an autologous plasma with platelet (PLT) concentration above that of whole blood (WB). PLTs contain growth factors (GFs) that promote tissular repair. Objectives To determine and compare the concentrations of PLT, red blood cells (RBC) and white blood cells (WBC) between WB samples, PRP and platelet poor plasma (PPP) samples; and to analyze the concentrations of platelet-derived growth factor BB (PDGF-BB) and transforming growth factor β1 (TGF-β1) in the PRP and PPP of healthy adult cats using a standardized protocol with PRGF®-Endoret® characteristics. Material and Methods WB was collected from 30 cats. PRP was obtained following three centrifugation protocols using PRGF®-Endoret® technology: 255, 260, and 265 g for 10 min each. The cellular components, RBC, WBC, PLT, and the concentrations of PDGF-BB and TGF-β1 in the PRP and PPP fractions were determined for each protocol. Results PLTs in the PRP fraction were statistically higher than WB, with no statistical differences between PPP and WB. In PRP fraction, PLT concentration was increased 1.4 times on average at 255 g; 1.3 times at 260 g and, 1.5 times at 265 g without statistical differences among them. The mean platelet volume (MPV) was significantly higher in WB compared to PRP and PPP fractions without significant differences between protocols. Compared to WB, the number of RBCs and WBCs was reduced by 99% and by more than 95% in PRP and PPP respectively, without significant differences between protocols. PDGF-BB concentrations were statistically higher in PRP than in PPP fractions, however, TGF-ß1 concentrations did not vary between fractions at 260 g. Comparing the three protocols within PRP and PPP fractions, no differences in PDGF-BB and TGF-ß1 concentrations were observed. Clinical Relevance The study shows scientific evidence regarding the obtention of PRP in cats using the PRGF®-Endoret® technology for the quantification of PDGF-BB and TGF-ß1. At 265 g for 10 min, PLT concentration was increased 1.5 times with unnoticeable erythrocytes and leukocytes in the samples. These results clearly show that the PRGF®-Endoret® methodology is suitable to obtain PRP in cats. Further studies are needed to determine the clinical efficacy of the obtained PGRF in the treatment of different pathologies in cats.
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Affiliation(s)
- Laura Miguel-Pastor
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Katy Satué
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Deborah Chicharro
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Marta Torres-Torrillas
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Ayla del Romero
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Pau Peláez
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - José M. Carrillo
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
- García Cugat Foundation CEU-UCH Chair of Medicine and Regenerative Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Belén Cuervo
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
| | - Joaquín J. Sopena
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
- García Cugat Foundation CEU-UCH Chair of Medicine and Regenerative Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
- *Correspondence: Joaquín J. Sopena
| | - José J. Cerón
- Interdisciplinary Laboratory of Clinical Analysis, University of Murcia, Murcia, Spain
| | - Mónica Rubio
- Bioregenerative Medicine and Applied Surgery Research Group, Department of Animal Medicine and Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
- García Cugat Foundation CEU-UCH Chair of Medicine and Regenerative Surgery, CEU Cardenal Herrera University, CEU Universities, Valencia, Spain
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Davenport P, Lorenz V, Liu ZJ, Feldman HA, Canas J, Nolton E, Badur CA, Do TMT, Sola-Visner M. Development of gates to measure the immature platelet fraction in C57BL/6J mice using the Sysmex XN-V series multispecies hematology analyzer. J Vet Diagn Invest 2021; 33:913-919. [PMID: 34218748 DOI: 10.1177/10406387211027899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The immature platelet fraction (IPF) is a measure of newly released platelets, which has been used as a marker of platelet production in multiple human studies but is not widely available in multispecies analyzers. We developed gates to measure the IPF in diluted and undiluted murine blood samples on the Sysmex XN-1000V multispecies hematology analyzer. IPF gates were created using undiluted and diluted (1/10) blood samples obtained from adult and newborn (postnatal day 10, P10) C57BL/6J wild-type (WT) mice, and from 3 murine models of thrombocytopenia: c-MPL-/- mice, which lack the thrombopoietin receptor (hyporegenerative); antibody-mediated thrombocytopenia; and acute inflammation-induced thrombocytopenia. P10 mice were chosen because, at their size, we could consistently obtain (by terminal phlebotomy) the blood volume needed to run an undiluted sample. The undiluted blood IPF gate successfully differentiated between mechanisms of thrombocytopenia in both adult and P10 mice. For diluted samples, 2 IPF gates were generated: a thrombocytopenic (T) gate, which performed well in samples with platelet counts (PCs) <800 × 109/L in adult mice and <500 × 109/L in newborn mice, and a non-thrombocytopenic (NT) gate, which performed well in samples with PCs above these thresholds. PCs and IPFs measured in diluted blood using these gates agreed well with those measured in undiluted blood and had good reproducibility. These diluted gates allow for the accurate measurement of PCs and IPFs in small (10 µL) blood volumes, which can be obtained easily from adult and newborn mice as small as P1 to assess platelet production serially.
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Affiliation(s)
| | | | | | - Henry A Feldman
- Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, MA, USA
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9
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Updates on Laboratory Evaluation of Feline Cardiac Diseases. Vet Sci 2021; 8:vetsci8030041. [PMID: 33802401 PMCID: PMC8000286 DOI: 10.3390/vetsci8030041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/15/2021] [Accepted: 02/26/2021] [Indexed: 11/17/2022] Open
Abstract
Laboratory tests can be altered in cardiovascular diseases and the investigation of specific tests or biomarkers may provide additional information about myocardial damage. Traditional laboratory tests, such as cell blood count, serum biochemistry, and coagulation, can be useful in investigating patients, but are not specific. However, markers like Troponin and Natriuretic Peptides may possibly furnish further data on myocardium damage and can be used in both studying and monitoring cats with cardiac disease. Moreover, the evaluation of the thyroid profile is very important as hyperthyroid cats concomitant cardiovascular diseases are very common and they can also be a direct consequence of endocrinopathy. The purpose of this manuscript is to provide the widest possible overview of what is present in the literature about the feline clinical pathology of heart diseases through a rational division of the main alterations of traditional tests and biomarkers.
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Abdollahi-Pirbazari M, Jamshidi S, Nassiri SM, Zamani-Ahmadmahmudi M. Comparative measurement of FeLV load in hemolymphatic tissues of cats with hematologic cytopenias. BMC Vet Res 2019; 15:460. [PMID: 31856815 PMCID: PMC6924046 DOI: 10.1186/s12917-019-2208-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 12/04/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Feline leukemia virus (FeLV) is a serious viral infection in cats. FeLV is found in some tissues, such as spleen, lymph nodes and epithelial tissues. However, there is controversy about the organ in which the virus can be reliably detected in infected cats. The purpose of this study was to determine the level of viral infection in hemolymphatic tissues, including blood, bone marrow and spleen by reverse-transcriptase quantitative polymerase chain reaction (RT-qPCR). RESULTS A total of 31 cats with clinical signs of FeLV infection associated with at least a single lineage hematologic cytopenia were included in this study. Peripheral blood, bone marrow and spleen samples were obtained from each cat. Complete blood counts, biochemical tests, and a rapid test to detect FeLV p27 antigen in blood samples of cats were performed. Of 31 cats, 9 had anemia alone, 4 had thrombocytopenia alone, 2 had neutropenia alone, 9 had bicytopenia of anemia and thrombocytopenia, 3 had bicytopenia of anemia and neutropenia, and 4 had pancytopenia. FeLV RNA was then detected by RT-qPCR in the whole blood, bone marrow and spleen. Viral RNA copy numbers were detected in all cats by RT-qPCR whereas 24 out of 31 cats were positive for the serum FeLV antigen. We detected a significantly greater number of viral RNA in the spleen compared with the whole blood and bone marrow. CONCLUSION Spleen is a site where FeLV is most frequently detected in cats with hematologic cytopenias.
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Affiliation(s)
| | - Shahram Jamshidi
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Seyed Mahdi Nassiri
- Department of Clinical Pathology, Faculty of Veterinary Medicine, University of Tehran, Qareeb St., Azadi Ave, Tehran, Iran.
| | - Mohamad Zamani-Ahmadmahmudi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
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Slovak JE, Hwang JK, Rivera SM, Villarino NF. Pharmacokinetics of mycophenolic acid and its effect on CD4 + and CD8 + T cells after oral administration of mycophenolate mofetil to healthy cats. J Vet Intern Med 2019; 33:2020-2028. [PMID: 31423655 PMCID: PMC6766527 DOI: 10.1111/jvim.15585] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 07/23/2019] [Indexed: 12/01/2022] Open
Abstract
Background Mycophenolate mofetil (MMF) is an immunosuppressant used in human and veterinary medicine. Little pharmacokinetic and pharmacodynamic information on MMF is available in cats. Objective To evaluate the plasma disposition of mycophenolic acid (MPA) and assess its effect on total peripheral blood mononuclear cells and CD4+/CD8+ ratios after PO administration of MMF. Animals Healthy cats (n = 10). Methods Mycophenolate mofetil was administered at a dosage of 10 mg/kg q12h (n = 3), 15 mg/kg q12h (n = 3), and 15 mg/kg q8h (n = 4) for 7 days. Concentrations of MPA and derivatives were determined using ultra‐high‐performance liquid chromatography. Flow cytometry was used to assess CD4+/CD8+ T‐cell ratios. Results All cats biotransformed MMF into MPA. Half of the cats (5/10) had adverse effects within 1 week of MMF administration. Area under the curve limit of quantification (AUC0‐LOQh) of MPA ranged from 1.27 to 2.03 hours·μg/mL and from 1.77 to 8.54 hours·μg/mL after the first and last PO dose of 10 mg/kg. The AUC0‐loqh of MPA ranged from 2.18 to 31 hours·μg/mL after the first dose of 15 mg/kg of MMF. Before the first dose of MMF, the average total number of PBMC ranged from 1.2 to 9.3 million/mL. At the last dose of MMF, the average total number of PBMC ranged from 3 to 5 million/mL. Conclusion Mycophenolic acid was detected in all cats. The dose 10 mg/kg given q12h for 1 week was tolerated (n = 3). The efficacy of MMF as an immunosuppressant and long‐term safety in cats of this dosage regimen is unknown.
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Affiliation(s)
- Jennifer E Slovak
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Julianne K Hwang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Sol M Rivera
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
| | - Nicolas F Villarino
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington
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