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Blaxill JE, Bennett PF. Evaluation of clinical response and prognostic factors in canine multicentric lymphoma treated with first rescue therapy. Vet Comp Oncol 2024; 22:265-277. [PMID: 38646859 DOI: 10.1111/vco.12974] [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: 11/12/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 04/23/2024]
Abstract
Despite an initial strong response in most dogs with multicentric lymphoma treated with chemotherapy, relapse remains common. There is no clearly superior first rescue protocol described either for resistant or relapsed canine multicentric lymphoma. The objectives of this study were to assess clinical response and outcomes for canine multicentric lymphoma treated with first rescue protocols. The secondary objective was to assess prognostic variables for dogs undergoing these protocols. This was a bi-institutional retrospective cohort study. Two hundred and sixty-five dogs were treated with first rescue chemotherapy, including anthracycline-based combination chemotherapy (CHOP-like, n = 50), nitrosourea alkylating agent-rich chemotherapy (n = 45), anthracycline-based or related compound chemotherapy (n = 34), or nitrosourea single-agent chemotherapy (n = 136). The overall median progression free survival time of first rescue protocol was 56.0 days (0-455 days). Important prognostic factors identified for first rescue protocol included the attainment of a complete response to the first rescue chemotherapy (p < .001), the use of a CHOP-like first rescue protocol (p = .009), duration of first remission (HR 0.997, p = .028), and if prednisolone was included in the first rescue protocol (HR 0.41, p = .003). Adverse events (AE) were common, with 81.1% of dogs experiencing at least one AE during first rescue chemotherapy. This study highlights the need for improved first rescue therapies to provide durable remission in canine resistant or relapsed lymphoma.
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Affiliation(s)
- John E Blaxill
- Small Animal Specialist Hospital, North Ryde, New South Wales, Australia
| | - Peter F Bennett
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Victoria, Australia
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2
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Wolf M, Lucina SB, Silva VBC, Silveira MF, Silva VG, Sarraff AP, Custódio CC, Sousa MG. Assessment of left and right ventricular systolic function in dogs with multicentric lymphoma. Top Companion Anim Med 2024; 60:100858. [PMID: 38527726 DOI: 10.1016/j.tcam.2024.100858] [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: 11/13/2021] [Revised: 01/06/2024] [Accepted: 03/14/2024] [Indexed: 03/27/2024]
Abstract
OBJECTIVE Myocardial dysfunction in cardio-oncology is generally thought to be related to the cardiotoxicity of chemotherapy treatment. However, it is known that some tumors have direct effects on myocardial function. These effects have already been studied in man, but there are no publications of these of the effects in dogs. Novel advanced echocardiographic techniques may allow early detection of myocardial dysfunction when compared to conventional echocardiographic techniques. This study aims to assess myocardial systolic function in dogs with multicentric lymphoma prior to initiation of chemotherapy. ANIMALS Fifteen dogs with multicentric lymphoma and nineteen healthy dogs. METHODS Case-control study. Dogs with multicentric lymphoma and healthy control dogs underwent physical examination, electrocardiography, systolic blood pressure measurement, standard and speckle tracking echocardiography to assess biventricular systolic function. RESULTS There were no differences between groups in terms of ejection fraction, fractional shortening, left ventricular systolic and diastolic diameter, tricuspid annular plane systolic excursion, mitral annular plane systolic excursion and fractional area change of the right ventricle (RV). However, there was a reduction in the values of global circumferential strain (p = 0.0003), RV strain (p = 0.01) and RV tissue motion annular displacement (p < 0.05) in the dogs with lymphoma when compared to the control group. CONCLUSIONS Speckle tracking techniques appear to demonstrate early systolic dysfunction, primarily affecting the RV, in dogs with lymphoma prior to chemotherapy treatment.
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Affiliation(s)
- Marcela Wolf
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil.
| | - Stephany B Lucina
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Vinícius B C Silva
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Matheus F Silveira
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Victória G Silva
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Ana P Sarraff
- School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba campus, Curitiba, Paraná, Brazil
| | | | - Marlos G Sousa
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Paraná, Brazil
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Romito G, Palatini L, Sabetti MC, Cipone M. Myocardial injury in dogs: a retrospective analysis on etiological, echocardiographic, electrocardiographic, therapeutic, and outcome findings in 102 cases. J Vet Cardiol 2024; 53:36-51. [PMID: 38640640 DOI: 10.1016/j.jvc.2024.03.004] [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: 06/01/2023] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/21/2024]
Abstract
INTRODUCTION In dogs, myocardial injury (MI) is a poorly characterized clinical entity; therefore, this study aimed to provide a detailed description of dogs affected by this condition. ANIMALS, MATERIALS, AND METHODS Dogs diagnosed with MI according to the concentration of cardiac troponin I (cTnI) were retrospectively searched. Signalment, diagnostic, therapeutic, and outcome data were retrieved. Dogs were divided into six echocardiographic (dilated cardiomyopathy phenotype; hypertrophic cardiomyopathy phenotype; hypertrophic cardiomyopathy phenotype with systolic dysfunction; abnormal echogenicity only; endocarditis; and no echocardiographic abnormalities suggestive of MI), four electrocardiographic (abnormalities of impulse formation; abnormalities of impulse conduction; abnormalities of ventricular repolarization; and no electrocardiographic abnormalities suggestive of MI), and nine etiological (infective; inflammatory; neoplastic; metabolic; toxic; nutritional; immune-mediated; traumatic/mechanical; and unknown) categories. Statistical analysis was performed to compare cTnI values among different categories and analyze survival. RESULTS One hundred two dogs were included. The median cTnI value was 3.71 ng/mL (0.2-180 ng/mL). Echocardiographic and electrocardiographic abnormalities were documented in 86 of 102 and 89 of 102 dogs, respectively. Among echocardiographic and electrocardiographic categories, the dilated cardiomyopathy phenotype (n = 52) and abnormalities of impulse formation (n = 67) were overrepresented, respectively. Among dogs in which a suspected etiological trigger was identified (68/102), the infective category was overrepresented (n = 20). Among dogs belonging to different echocardiographic, electrocardiographic, and etiological categories, cTnI did not differ significantly. The median survival time was 603 days; only eight of 102 dogs died due to MI. CONCLUSIONS Dogs with MI often have an identifiable suspected trigger, show various echocardiographic and electrocardiographic abnormalities, and frequently survive to MI-related complications.
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Affiliation(s)
- G Romito
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy.
| | - L Palatini
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
| | - M C Sabetti
- Department of Veterinary Sciences, University of Parma, Strada del Taglio 10, 43126, Parma, Italy
| | - M Cipone
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
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Sutthigran S, Saisawart P, Teewasutrakul P, Sirivisoot S, Thanaboonnipat C, Rungsipipat A, Choisunirachon N. Hematological and blood biochemistry parameters as prognostic indicators of survival in canine multicentric lymphoma treated with COP and L-COP protocols. Vet World 2024; 17:344-355. [PMID: 38595652 PMCID: PMC11000476 DOI: 10.14202/vetworld.2024.344-355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/18/2024] [Indexed: 04/11/2024] Open
Abstract
Background and Aim Hematological and blood chemistry parameters are crucial for evaluating and monitoring canine multicentric lymphoma during chemotherapy. Pre-treatment hematological and blood chemistry parameters can be used as prognostic survival outcomes for this disease. Therefore, this study aimed to investigate the effect of hematological and blood chemistry parameters pre-treatment and 4 weeks post-treatment on the survival outcomes of dogs treated with either a combination of cyclophosphamide, vincristine, and prednisolone (COP) or a combination of COP with L-asparaginase (L-COP) protocols. Materials and Methods We conducted a retrospective study. Medical records and hematological and blood chemistry parameters of 41 dogs with multicentric lymphoma treated with L-COP (n = 26) and the COP protocols (n = 15) were obtained from the hospital information system. Most cases were classified as high-grade lymphoma based on the Kiel cytological classification. The effects of hematological and blood chemistry parameters on survival outcomes were investigated using the Cox proportional hazard regression model. The median survival time (MST) for each hematological and blood chemistry parameter affecting survival outcome was established and compared using the Kaplan-Meier product limit method with the log-rank test. Results Dogs with high-grade multicentric lymphoma that were treated with the COP protocol and had monocytosis at pre-treatment had a significantly shorter MST than dogs with normal monocyte counts (p = 0.033). In addition, dogs with azotemia, both pre-treatment and 4 weeks post-treatment, had a significantly shorter MST than dogs with normal serum creatinine levels (p = 0.012). Dogs with high-grade multicentric lymphoma treated with the L-COP protocol who had hypoalbuminemia (serum albumin concentration <2.5 mg/dL) at both pre-treatment and 4 weeks post-treatment had a significantly shorter MST than dogs with normal serum albumin levels (p < 0.001). Furthermore, dogs with leukocytosis at 4 weeks post-treatment had a significantly shorter MST than those with a normal total white blood cell count (p = 0.024). Conclusion Serum albumin level can serve as a simple negative prognostic indicator of survival outcomes in dogs with high-grade multicentric lymphoma treated with the L-COP protocol. Dogs with hypoalbuminemia pre-treatment and 4 weeks post-treatment tended to have a shorter MST than those with normal serum albumin concentrations.
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Affiliation(s)
- Somchin Sutthigran
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Phasamon Saisawart
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Patharakrit Teewasutrakul
- Small Animal Teaching Hospital, Faculty of Veterinary Science, Chulalongkorn University, Henri Dunant Rd., Pathumwan, Bangkok 10330, Thailand
| | - Sirintra Sirivisoot
- Center of Excellence for Companion Animal Cancer, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Henri Dunant Rd., Pathumwan Bangkok10330, Thailand
| | - Chutimon Thanaboonnipat
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Anudep Rungsipipat
- Center of Excellence for Companion Animal Cancer, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Henri Dunant Rd., Pathumwan Bangkok10330, Thailand
| | - Nan Choisunirachon
- Department of Surgery, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
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Matsuyama A, Beeler-Marfisi J, Wood RD, Richardson D, Calvalido J, Mutsaers AJ, Bienzle D. Treatment of myeloid neoplasia with doxorubicin and cytarabine in 11 dogs. Vet Comp Oncol 2023; 21:54-61. [PMID: 36153810 DOI: 10.1111/vco.12860] [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: 07/13/2022] [Revised: 08/30/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022]
Abstract
Myelodysplastic syndrome (MDS) and acute myeloid leukaemia (AML) are primary myeloid neoplasms in dogs generally considered to have a poor outcome. In this study, we assessed toxicity, efficacy and outcome of concurrent administration of doxorubicin and cytarabine in 11 dogs with myeloid neoplasia. Bone marrow specimens were reviewed by three pathologists and classified as either MDS (n = 2), high grade MDS/early AML (MDS/AML; n = 4) or AML (n = 5). The median number of treatment cycles was 5 (range 1-9) and resolution of cytopenia was reported in 7 of 11 dogs including 2 dogs with MDS, 2 dogs with MDS/AML, and 3 dogs with AML. The median duration of remission in the seven responders was 344 days (range 109-1428) and the median overall survival for all dogs was 369 days. Adverse events consisted of predominantly low-grade gastrointestinal illness and myelosuppression. Three dogs developed grade V toxicity manifesting with heart failure (n = 2) at 369 and 1170 days after diagnosis and acute gastrointestinal side effects (n =1). Despite a limited sample size, these results suggest that a doxorubicin and cytarabine protocol may be considered as a therapeutic option in dogs with myeloid neoplasia. Protocol safety, in particular regarding myocardial toxicity, and efficacy should be further investigated.
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Affiliation(s)
- Arata Matsuyama
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Janet Beeler-Marfisi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - R Darren Wood
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Danielle Richardson
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | | | - Anthony J Mutsaers
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.,Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Dorothee Bienzle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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6
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Owens EJ, LeBlanc NL, Freeman LM, Scollan KF. Comparison of echocardiographic measurements and cardiac biomarkers in healthy dogs eating nontraditional or traditional diets. J Vet Intern Med 2022; 37:37-46. [PMID: 36482834 PMCID: PMC9889624 DOI: 10.1111/jvim.16606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There has been a recent association between nontraditional diets and development of diet-associated dilated cardiomyopathy (DCM) in dogs. HYPOTHESIS/OBJECTIVES To compare echocardiographic measurements and cardiac biomarkers between healthy dogs eating nontraditional vs traditional diets. We hypothesized that dogs eating nontraditional diets would have lower measures of systolic myocardial performance compared to dogs eating traditional diets. ANIMALS Forty-six healthy dogs: 23 eating nontraditional diets and 23 eating traditional diets. METHODS Prospective, cross-sectional study. Dogs were divided into groups based on diet ingredients. Dogs underwent 2-dimensional (2D), 3-dimensional (3D), and Doppler echocardiographic examinations and analysis of plasma N-terminal prohormone of B-type natriuretic peptide, serum cardiac troponin I, and whole blood and plasma taurine concentrations. RESULTS Mean 2D ejection fraction (EF) was lower for dogs eating nontraditional diets (48.65 ± 7.42%) vs dogs eating traditional diets (56.65 ± 4.63%; P < .001; mean difference 8.0% [4.0%-12.0%] 95% confidence interval [CI]). Mean 3D EF was lower for dogs eating nontraditional diets (45.38 ± 7.35%) vs dogs eating traditional diets (57.58 ± 4.84%; P < .001; 12.0% [8.0%-16.0%] 95% CI). Mean 2D left ventricular end-systolic volumes, indexed to body weight, were significantly higher in dogs eating nontraditional diets (1.46 ± 0.08 mL/kg) vs dogs eating traditional diets (1.06 ± 0.08 mL/kg; P = .002; 0.4 mL/kg [0.18-0.62 mL/kg] 95% CI). CONCLUSIONS AND CLINICAL IMPORTANCE Healthy dogs eating nontraditional diets had lower indices of systolic function and larger left ventricular volumes compared to dogs eating traditional diets. Screening of apparently healthy dogs eating nontraditional diets might allow for early detection of diet-associated DCM.
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Affiliation(s)
- Eric J. Owens
- Carlson College of Veterinary MedicineOregon State University, 700 SW 30th StreetCorvallisOregonUSA,Present address:
Gulf Coast Veterinary Specialists, 8042 Katy FreewayHoustonTexasUSA
| | - Nicole L. LeBlanc
- Carlson College of Veterinary MedicineOregon State University, 700 SW 30th StreetCorvallisOregonUSA,Present address:
Summit Veterinary Referral Center, 2505 S 80th StreetTacomaWashingtonUSA
| | - Lisa M. Freeman
- Cummings School of Veterinary MedicineTufts University, 200 Westboro RoadNorth GraftonMassachusettsUSA
| | - Katherine F. Scollan
- Carlson College of Veterinary MedicineOregon State University, 700 SW 30th StreetCorvallisOregonUSA
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7
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Sung JY, Joo HG. Sonicated Bordetella bronchiseptica Bacterin Can Protect Dendritic Cells from Differential Cytotoxicity Caused by Doxorubicin and Vincristine and Enhance Their Antigen-Presenting Capability. Curr Issues Mol Biol 2022; 44:3089-3099. [PMID: 35877437 PMCID: PMC9323433 DOI: 10.3390/cimb44070213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
Doxorubicin (DOX) and vincristine (VC) are anti-cancer drugs commonly used for lymphoma in veterinary and human medicine. However, there are several side effects caused by these drugs. In this study, the protective effects of sonicated Bordetella bronchiseptica bacterin (sBb) on dendritic cells (DCs) damaged by two anti-cancer drugs were investigated. DCs play important roles in the innate and adaptive immunity of hosts, especially activating T cells that can suppress tumor growth. The metabolic activity of DCs significantly increased after the treatment with sBb compared to that of control DCs. In addition, there was a marked change in mitochondrial integrity between DOX-treated DC and DOX + sBb-treated DCs. Flow cytometric analysis also demonstrated that sBb upregulated the expression of the surface markers of DCs, particularly CD54. In mixed lymphocyte responses, sBb significantly increased the antigen-presenting capability of DCs. In particular, sBb increased the capability of control DCs by approximately 150% and that of VC-treated DCs by 221%. These results suggest that sBb can be used as a potential immunostimulatory agent to protect DCs from anti-cancer drug-induced damage and provide fundamental information about using a combination of DCs and vincristine in immunotherapy.
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Li X, Liang J, Qu L, Liu S, Qin A, Liu H, Wang T, Li W, Zou W. Exploring the role of ferroptosis in the doxorubicin-induced chronic cardiotoxicity using a murine model. Chem Biol Interact 2022; 363:110008. [PMID: 35667395 DOI: 10.1016/j.cbi.2022.110008] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 05/28/2022] [Accepted: 06/01/2022] [Indexed: 11/03/2022]
Abstract
Doxorubicin (DOX) is an effective antitumor drug; however, but its clinical application is seriously limited by the cardiotoxicity induced by its use. Recent studies have found that ferroptosis is an important mechanism underlying DOX-induced cardiotoxicity. However, existing studies are based on DOX-induced acute or subacute cardiotoxicity model. Therefore, we established a murine model of DOX-induced chronic cardiotoxicity using the clinically relevant cumulative dose, to evaluate the potential molecular mechanism underlying ferroptosis of cardiomycocytes. Male C57 mice were received intraperitoneal injections of DOX at a dose of 3 mg/kg body weight, once a week for 12 weeks. We dynamically analysed echocardiographic findings, serum myocardial enzyme levels, haematological indexes and cardiac histopathological changes. The results showed that, after receiving a cumulative DOX dose of 15 mg/kg, the mice developed anaemia and the function and structure of the heart changed significantly with an increase in the cumulative DOX dose. Importantly, with a cumulative DOX dose of 36 mg/kg, iron overload occurred in the heart tissue. Moreover, RNA-sequencing analysis and experimental verification revealed that ferropotosis is the underlying mechanism of DOX-induced chronic cardiotoxicity. Our results showed that DOX inhibits Slc7a11 in system-Xc, resulting in the reduction of GSH synthesis to prevent GPX4 from scavenging lipid peroxides. In addition, DOX induced the occurrence of ferroptosis via down-regulating Nrf2 expression to inhibit HO-1 and GPx4 levels. Our study provides a new perspective for evaluating the pathophysiology of DOX-induced chronic cardiotoxicity in the future, and developing new potential therapeutic strategies for the prevention and treatment of DOX-induced cardiotoxicity.
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Affiliation(s)
- Xiaofen Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jiyi Liang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Liping Qu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Sili Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Anquan Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Honglin Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Tao Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Wei Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Wenjun Zou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Walker AL, DeFrancesco TC, Bonagura JD, Keene BW, Meurs KM, Tou SP, Kurtz K, Aona B, Barron L, McManamey A, Robertson J, Adin DB. Association of diet with clinical outcomes in dogs with dilated cardiomyopathy and congestive heart failure. J Vet Cardiol 2022; 40:99-109. [PMID: 33741312 DOI: 10.1016/j.jvc.2021.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 02/07/2021] [Accepted: 02/10/2021] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Dilated cardiomyopathy (DCM) in dogs has been associated with feeding of grain-free (GF), legume-rich diets. Some dogs with presumed diet-associated DCM have shown improved myocardial function and clinical outcomes following a change in diet and standard medical therapy. HYPOTHESIS Prior GF (pGF) diet influences reverse cardiac remodeling and clinical outcomes in dogs with DCM and congestive heart failure (CHF). ANIMALS AND METHODS A retrospective study was performed with 67 dogs with DCM and CHF for which diet history was known. Dogs were grouped by diet into pGF and grain-inclusive (GI) groups. Dogs in the pGF group were included if diet change was a component of therapy. Survival was analyzed using Kaplan-Meier curves and the Cox proportional-hazards model. RESULTS The median survival time was 344 days for pGF dogs vs. 253 days for GI dogs (P = 0.074). Statistically significant differences in median survival were identified when the analysis was limited to dogs surviving longer than one week (P = 0.033). Prior GF dogs had a significantly worse outcome the longer a GF diet was fed prior to diagnosis (P = 0.004) or if they were diagnosed at a younger age (P = 0.017). Prior GF dogs showed significantly greater improvement in normalized left ventricular internal diastolic diameter (P = 0.038) and E-point septal separation (P = 0.031) measurements and significant decreases in their furosemide (P = 0.009) and pimobendan (P < 0.005) dosages over time compared to GI dogs. CONCLUSIONS Prior GF dogs that survived at least one week after diagnosis of DCM, treatment of CHF, and diet change had better clinical outcomes and showed reverse ventricular remodeling compared to GI dogs.
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Affiliation(s)
- A L Walker
- School of Veterinary Medicine, University of California, Davis,1 Garrod Drive, Davis, CA, 95616, USA
| | - T C DeFrancesco
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA.
| | - J D Bonagura
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - B W Keene
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - K M Meurs
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - S P Tou
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - K Kurtz
- MedVet Chicago, 3305 N, California Ave., Chicago, IL, 60618, USA
| | - B Aona
- MedVet Columbus, 300 E, Wilson Bridge Rd., Worthington, OH, 43085, USA
| | - L Barron
- The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, United Kingdom
| | - A McManamey
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - J Robertson
- College of Veterinary Medicine, North Carolina State University, 1060 William Moore Dr., Raleigh, NC, 27607, USA
| | - D B Adin
- College of Veterinary Medicine, University of Florida, 2015 SW 16th Ave., Gainesville, FL, 32608, USA
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Stringer E, Thamm D, Melendez G, Han S. Possible cardiotoxicity associated with low‐dose doxorubicin during chemotherapy in a ring‐tailed lemur (
Lemur catta
) with multicentric lymphoma. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Douglas Thamm
- College of Veterinary Medicine and Biomedical Sciences Colorado State University Fort Collins Colorado USA
| | - Giselle Melendez
- Department of Internal Medicine Wake Forest School of Medicine Winston‐Salem North Carolina USA
| | - Sushan Han
- Diagnostic Medicine Center Colorado State University Fort Collins Colorado USA
- Department of Microbiology Colorado State University Fort Collins Colorado USA
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11
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Lawson HC, Musser ML, Regan R, Moore AS, Hohenhaus A, Flesner B, Johannes CM. Toxicity, outcome, and management of anthracycline overdoses in 16 dogs. J Vet Intern Med 2021; 36:234-243. [PMID: 34825413 PMCID: PMC8783333 DOI: 10.1111/jvim.16325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 12/01/2022] Open
Abstract
Background Despite multiple reports of chemotherapy overdoses (ODs) in human and veterinary medicine, anthracycline ODs have been described infrequently. Hypothesis/Objectives Describe toxicities, treatments, and overall outcome after anthracycline OD in dogs. Animals Twelve mitoxantrone (MTX) and 4 doxorubicin (DOX) ODs were evaluated. Methods Multicenter retrospective analysis. The American College of Veterinary Internal Medicine oncology and internal medicine listservs were solicited for cases in which a chemotherapy OD occurred. Results Sixteen anthracycline cases were collected. Anthracycline ODs occurred because of an error in chemotherapy preparation (n = 9), or dose miscalculation (n = 7). The overall median OD was 1.9× (range, 1.4‐10×) the prescribed amount. Most ODs were identified immediately after drug administration (n = 11), and the majority of patients were hospitalized on supportive care (n = 11) for an average of 8 days (range, 3‐34 days). Adverse events after the OD included neutropenia (94%), thrombocytopenia (88%), anemia (63%), diarrhea (63%), anorexia (56%), vomiting (38%), lethargy (31%), and nausea (25%). Two patients did not survive the OD. High grade neutropenia was common and did not appear to be mitigated by the administration of filgrastim. Conclusions and Clinical Importance All patients received supportive care after identifying the OD and death was uncommon. Further evaluation is needed to determine ideal therapeutic guidelines anthracycline OD.
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Affiliation(s)
- Haylie C Lawson
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | - Margaret L Musser
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
| | | | - Antony S Moore
- Veterinary Oncology Consultants, Lake Innes, New South Wales, Australia
| | | | - Brian Flesner
- College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA
| | - Chad M Johannes
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, USA
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12
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Isaka M, Hayashida R, Tamashima Y, Araki R. Effects of timolol maleate eye drops on experimentally dilated cardiomyopathy and healthy rabbits. Open Vet J 2021; 11:390-393. [PMID: 34722201 PMCID: PMC8541723 DOI: 10.5455/ovj.2021.v11.i3.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/21/2021] [Indexed: 11/03/2022] Open
Abstract
Background Dilated cardiomyopathy (DCM) is the most frequently diagnosed cardiomyopathy in rabbits. Timolol maleate (nonselective beta-blockers), which reduces the heart rate (HR) and blood pressure, has been used for glaucoma. However, this effect has not been assessed in a rabbit DCM model. Aim This study aimed to evaluate the circulatory effects of 0.5% timolol maleate eye drops on rabbit DCM models. Methods Rabbits were randomly divided into healthy (n = 8) and DCM rabbits (n = 8). Rabbit DCM models were established through intravenous administration of daunorubicin (4 mg/kg/week), an anthracycline anticancer drug, for 6 weeks. We measured the HR, mean arterial pressure (MAP), and echocardiography before (pre) and at 10, 30, 60, and 120 minutes after timolol maleate administration. Results Timolol maleate 0.5% eye drops significantly reduced the HR at 10, 30, and 60 minutes in DCM models and 10 minutes in healthy rabbits; however, there were no alterations in MAP. There was a significant fraction shortening elevation at 10 and 120 minutes in DCM models; moreover, there were marked ejection fraction elevations at all measurement points in only DCM models. Conclusion Timolol maleate eye drops exert several effects on the circulatory system in rabbit DCM models and healthy rabbits.
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Affiliation(s)
- Mitsuhiro Isaka
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Reimi Hayashida
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Yuumi Tamashima
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Ryuji Araki
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
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13
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Abstract
PRACTICAL RELEVANCE The feline cardiomyopathies are the most prevalent type of heart disease in adult domestic cats. Several forms have been identified (see Parts 2 and 3), with hypertrophic cardiomyopathy (HCM) being the most common. Clinically the cardiomyopathies are often indistinguishable. Cats with subclinical cardiomyopathy may or may not have characteristic physical examination findings (eg, heart murmur, gallop sound), or radiographic cardiomegaly. Cats with severe disease may develop signs of heart failure (eg, dyspnea, tachypnea) or systemic arterial thromboembolism (ATE; eg, pain and paralysis). Sudden death is possible. Treatment usually does not alter the progression from subclinical to clinical disease and often the treatment approach, once clinical signs are apparent, is the same regardless of the type of cardiomyopathy. However, differentiating cardiomyopathy from normal variation may be important prognostically. PATIENT GROUP Domestic cats of any age from 3 months upward, of either sex and of any breed, can be affected. Mixed-breed cats are most commonly affected but certain breeds are disproportionately prone to developing HCM. DIAGNOSTICS Subclinical feline cardiomyopathies may be suspected based on physical examination findings, thoracic radiographs and cardiac biomarker results but often the disease is clinically silent. The definitive clinical confirmatory test is echocardiography. Left heart failure (pulmonary edema and/or pleural effusion) is most commonly diagnosed radiographically, but point-of-care ultrasound and amino terminal pro-B-type natriuretic peptide (NT-proBNP) biomarker testing can also be useful, especially when the stress of taking radiographs is best avoided. KEY FINDINGS Knowledge of pathophysiological mechanisms helps the practitioner identify the feline cardiomyopathies and understand how these diseases progress and how they manifest clinically (heart failure, ATE). Existing diagnostic tests have strengths and limitations, and being aware of these can help a practitioner deliver optimal recommendations regarding referral. CONCLUSIONS Several types of feline cardiomyopathies exist in both subclinical (mild to severe disease) and clinical (severe disease) phases. Heart failure and ATE are the most common clinical manifestations of severe cardiomyopathy and are therapeutic targets regardless of the type of cardiomyopathy. The long-term prognosis is often guarded or poor once overt clinical manifestations are present. AREAS OF UNCERTAINTY Some cats with presumed cardiomyopathy do not have echocardiographic features that fit the classic cardiomyopathies (cardiomyopathy - nonspecific phenotype). Although no definitive treatment is usually available, understanding how cardiomyopathies evolve remains worthy of investigation.
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Affiliation(s)
- Mark D Kittleson
- School of Veterinary Medicine, Department of Medicine and Epidemiology, University of California, Davis, and Veterinary Information Network, 777 West Covell Boulevard, Davis, CA 95616, USA
| | - Etienne Côté
- Department of Companion Animals, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
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14
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Brugada-Terradellas C, Hellemans A, Brugada P, Smets P. Sudden cardiac death: A comparative review of humans, dogs and cats. Vet J 2021; 274:105696. [PMID: 34148018 DOI: 10.1016/j.tvjl.2021.105696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 01/14/2023]
Abstract
Sudden death is one of the most common causes of death in humans in Western countries. Approximately 85% of these cases are of cardiac origin. In dogs and cats, sudden cardiac death (SCD) also commonly occurs, but fewer pathophysiological and prevalence data are available. Both structural, primarily 'electrical' and ischemic heart diseases are known to cause SCD, many of which share similar underlying arrhythmogenic mechanisms between humans and companion animals. As for underlying genetics, numerous mutations on multiple loci have been related to SCD in humans, but only a few mutations associated with dilated cardiomyopathy and SCD have been identified in dogs, e.g. in the phospholamban and titin genes. Information published from human medicine can therefore inform future veterinary studies, but also dogs and cats could act as spontaneous models of SCD in humans. Further research in both fields is therefore warranted to better understand the pathophysiology, genetics, and prevention of SCD.
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Affiliation(s)
- Celine Brugada-Terradellas
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - Arnaut Hellemans
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Pedro Brugada
- Pedro Brugada, Cardiovascular Division, UZ Brussel - VUB, Avenue du Laerbeek 101, 1090 Brussels, Belgium
| | - Pascale Smets
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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15
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Matsuura K, Shiraishi K, Mandour AS, Sato K, Shimada K, Goya S, Yoshida T, Kitpipatkun P, Hamabe L, Uemura A, Yilmaz Z, Ifuku M, Iso T, Takahashi K, Tanaka R. The Utility of Intraventricular Pressure Gradient for Early Detection of Chemotherapy-Induced Subclinical Cardiac Dysfunction in Dogs. Animals (Basel) 2021; 11:1122. [PMID: 33919889 PMCID: PMC8070943 DOI: 10.3390/ani11041122] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/22/2021] [Accepted: 04/08/2021] [Indexed: 01/04/2023] Open
Abstract
Early detection of doxorubicin (DXR)-induced cardiomyopathy (DXR-ICM) is crucial to improve cancer patient outcomes and survival. In recent years, the intraventricular pressure gradient (IVPG) has been a breakthrough as a sensitive index to assess cardiac function. This study aimed to evaluate the usefulness of IVPG for the early detection of chemotherapy-related cardiac dysfunction. For this purpose, six dogs underwent conventional, speckle tracking, and color M-mode echocardiography concomitantly with pressure-and-volume analysis by conductance catheter. The cardiac function measurements were assessed before DXR administration (baseline, Pre), at the end of treatment protocol (Post), and at 1.5 years follow-up (Post2). The result showed a significant reduction in the left ventricular end-systolic pressure-volume (Emax: 4.4 ± 0.7, 6.1 ± 1.6 vs. 8.4 ± 0.8 mmHg/mL), total-IVPG (0.59 ± 0.12, 0.62 ± 0.15 vs. 0.86 ± 0.12 mmHg), and mid-IVPG (0.28 ± 0.12, 0.31 ± 0.11 vs. 0.48 ± 0.08 mmHg), respectively in Post2 and Post compared with the baseline (p < 0.05). Mid-to-apical IVPG was also reduced in Post2 compared with the baseline (0.29 ± 0.13 vs. 0.51 ± 0.11). Meanwhile, the fraction shortening, ejection fraction, and longitudinal strain revealed no change between groups. Total and mid-IVPG were significantly correlated with Emax (R = 0.49; p < 0.05, both) but only mid-IVPG was a predictor for Emax (R2 = 0.238, p = 0.040). In conclusion, this study revealed that impairment of contractility was the initial changes observed with DXR-ICM in dogs and only IVPG could noninvasively detect subclinical alterations in cardiac function. Color M-mode echocardiography-derived IVPG could be a potential marker for the early detection of doxorubicin cardiomyopathy.
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Affiliation(s)
- Katsuhiro Matsuura
- VCA Japan Shiraishi Animal Hospital, Saitama 350-1304, Japan;
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Kenjirou Shiraishi
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Ahmed S. Mandour
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
- Department of Animal Medicine (Internal Medicine), Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Kotomi Sato
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Kazumi Shimada
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Seijirow Goya
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Tomohiko Yoshida
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Pitipat Kitpipatkun
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Lina Hamabe
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
| | - Akiko Uemura
- Department of Veterinary Surgery, Division of Veterinary Research, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan;
| | - Zeki Yilmaz
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, Bursa 16120, Turkey;
| | - Mayumi Ifuku
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.I.); (T.I.); (K.T.)
| | - Takeshi Iso
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.I.); (T.I.); (K.T.)
| | - Ken Takahashi
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (M.I.); (T.I.); (K.T.)
| | - Ryou Tanaka
- Veterinary Surgery, Tokyo University of Agriculture and Technology, Tokyo 183-0054, Japan; (K.S.); (K.S.); (K.S.); (S.G.); (T.Y.); (P.K.); (L.H.)
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16
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Barreto M, Carvalho J, Michel A, Corrêa N, Silva F, Gomes D, Goes A, Melo M. Extract from Arrabidaea chica (Fridericia chica) leaves show preventive action for the mitigation of doxorubicin-induced cardiotoxicity. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | | | | | - F.C. Silva
- Universidade do Estado de Minas Gerais, Brazil
| | - D.A. Gomes
- Universidade Federal de Minas Gerais, Brazil
| | - A.M. Goes
- Universidade Federal de Minas Gerais, Brazil
| | - M.M. Melo
- Universidade Federal de Minas Gerais, Brazil
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17
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Boyé P, David E, Serres F, Pascal Q, Floch F, Geeraert K, Coste V, Marescaux L, Cagnol S, Goujon JY, Egorov M, Le Bot R, Tierny D. Phase I dose escalation study of 12b80 (hydroxybisphosphonate linked doxorubicin) in naturally occurring osteosarcoma. Oncotarget 2020; 11:4281-4292. [PMID: 33245733 PMCID: PMC7679038 DOI: 10.18632/oncotarget.27801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/27/2020] [Indexed: 11/25/2022] Open
Abstract
Purpose: 12b80 combines doxorubicin bound to a bone targeting hydroxybisphosphonate vector using a pH-sensitive linker, designed to specifically trigger doxorubicin release in an acidic bone tumor microenvironment. This phase I study aimed to determine the safety and toxicity profiles of 12b80 in dogs with naturally occurring osteosarcoma, with the objective to translate findings from dogs to humans. Experimental Design: Ten client-owned dogs with osteosarcoma were enrolled in an accelerated dose-titration design followed by 3 + 3 design. Dogs received three cycles of 12b80 intravenous injection at 4 mg/kg (n = 1), 6 mg/kg (n = 2), 8 mg/kg (n = 3), and 10 mg/kg (n = 4). Endpoints included safety, tolerability, maximum tolerated dose (MTD), and dose-limiting toxicity (DLT). Results: The MTD of 12b80 was 8 mg/kg (i.e., equivalent dose of doxorubicin of 110 mg/m2, range: 93–126). Most adverse events included grade ≤ 2 gastrointestinal disorders and hypersensitivity reactions. No hematological or cardiac DLT were observed at any dose tested. Conclusions: In dogs, 12b80 is overall well tolerated and expends the MTD of doxorubicin up to four times the standard dose of 30 mg/m2. These results demonstrate the potential therapeutic benefit of 12b80 in canine and human osteosarcoma.
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Affiliation(s)
- Pierre Boyé
- Oncovet Clinical Research (OCR), Parc Eurasanté, Loos, France.,Oncovet, Villeneuve d'Ascq, France.,Department of Small Animal Teaching Hospital, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush, Edinburgh, UK
| | | | - François Serres
- Oncovet Clinical Research (OCR), Parc Eurasanté, Loos, France.,Oncovet, Villeneuve d'Ascq, France
| | - Quentin Pascal
- Oncovet Clinical Research (OCR), Parc Eurasanté, Loos, France
| | | | | | - Virginie Coste
- Oncovet Clinical Research (OCR), Parc Eurasanté, Loos, France
| | | | | | | | | | | | - Dominique Tierny
- Oncovet Clinical Research (OCR), Parc Eurasanté, Loos, France.,Oncovet, Villeneuve d'Ascq, France
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18
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Willcox JL, Belanger C, Burton JH, Yu L, Ueda Y, Visser LC, Skorupski K, Stern JA. Intramuscular Diphenhydramine Does Not Affect Acute Doxorubicin Infusion-Related Arrhythmia Number or Severity in a Prospective Crossover Study in Canine Lymphoma: A Pilot Study. Front Vet Sci 2020; 7:368. [PMID: 32766291 PMCID: PMC7379900 DOI: 10.3389/fvets.2020.00368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/27/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Doxorubicin (DOX) is one of the most effective chemotherapeutics for canine high-grade lymphoma. In addition to dose-dependent chronic cardiotoxicity, DOX can trigger acute cardiac arrhythmias during drug infusion. Diphenhydramine premedication is commonly used, as histamine release is a proposed mechanism for DOX-associated arrhythmogenesis. Hypothesis/Objectives: The study objectives were to evaluate the incidence and severity of DOX infusion-related cardiac arrhythmias in dogs with high-grade lymphoma and evaluate the effect of diphenhydramine premedication on arrhythmia frequency and severity during and after DOX infusion. Animals: Twenty-two client-owned dogs with cytologically/histopathologically confirmed high-grade lymphoma were recruited, of which 19 were enrolled and 9 completed the study. Methods: Dogs were screened by echocardiogram and concurrent electrocardiogram for this randomized prospective crossover study. Group A received no premedication for DOX #1 and was premedicated with diphenhydramine for DOX #2; Group B received diphenhydramine with DOX #1 and no premedication for DOX #2. For both visits, Holter monitor data were collected for 1 h pre-DOX and 3 h post-DOX administration. Results: Nineteen dogs were enrolled and 9 dogs [Group A (5), Group B (4)] completed the protocol. There was no statistical difference between the DOX alone and DOX + diphenhydramine when evaluating the total number of ventricular premature complexes (VPCs, P = 0.34), change in VPCs/hour (P = 0.25), total number of atrial premature complexes (APCs, P = 0.5), change in APCs/hour (P = 0.06), or ventricular arrhythmia severity score (P > 0.99). Conclusions and clinical importance: This study demonstrates that in these dogs with rigorous pretreatment cardiovascular screening, DOX infusion did not induce significant arrhythmias. Furthermore, these data suggest that, with this screening approach, diphenhydramine may not alter the arrhythmia number or severity in canine DOX recipients.
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Affiliation(s)
- Jennifer Lindley Willcox
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Catherine Belanger
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Jenna Hart Burton
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Lydia Yu
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Yu Ueda
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Lance C Visser
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Katherine Skorupski
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Joshua A Stern
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
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19
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McCauley SR, Clark SD, Quest BW, Streeter RM, Oxford EM. Review of canine dilated cardiomyopathy in the wake of diet-associated concerns. J Anim Sci 2020; 98:skaa155. [PMID: 32542359 PMCID: PMC7447921 DOI: 10.1093/jas/skaa155] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
Dilated cardiomyopathy (DCM) has been in the literature and news because of the recent opinion-based journal articles and public releases by regulatory agencies. DCM is commonly associated with a genetic predisposition in certain dog breeds and can also occur secondary to other diseases and nutritional deficiencies. Recent communications in veterinary journals have discussed a potential relationship between grain-free and/or novel protein diets to DCM, citing a subjective increase in DCM in dog breeds that are not known to have a genetic predisposition for the disease. This literature review describes clinical presentations of DCM, common sequelae, treatment and preventative measures, histopathologic features, and a discussion of the varied etiological origins of the disease. In addition, current literature limitations are addressed, in order to ascertain multiple variables leading to the development of DCM. Future studies are needed to evaluate one variable at a time and to minimize confounding variables and speculation. Furthermore, to prevent sampling bias with the current FDA reports, the veterinary community should be asked to provide information for all cases of DCM in dogs. This should include cases during the same time period, regardless of the practitioner's proposed etiology, due to no definitive association between diets with specific characteristics, such as, but not limited to, grain-free diets and those containing legumes, novel protein diets, and those produced by small manufacturers to DCM in dogs. In summary, in order to determine if certain ingredients, categories of diets, or manufacturing processes are related to an increased risk of DCM, further studies investigating these variables are necessary.
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20
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Zhang Y, Ma C, Liu C, Wei F. Luteolin attenuates doxorubicin-induced cardiotoxicity by modulating the PHLPP1/AKT/Bcl-2 signalling pathway. PeerJ 2020; 8:e8845. [PMID: 32435528 PMCID: PMC7224230 DOI: 10.7717/peerj.8845] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/02/2020] [Indexed: 12/12/2022] Open
Abstract
Background Luteolin (LUT) is a flavonoid found in vegetables and fruits that has diverse functions. Doxorubicin (DOX) is an anthracycline antibiotic that is frequently used for the treatment of various cancers. Unfortunately, the clinical efficacy of DOX is limited by its dose-related cardiotoxicity. In this study, we aimed to investigate the potential mechanism through which LUT attenuates cardiotoxicity in vivo. Methods We evaluated the body weight, heart weight, electrocardiogram, and pathological changes before and after administration of LUT. Moreover, the effects of LUT (50 mg/kg in the low dose group, 100 mg/kg in the high dose group) on biochemical parameters (brain natriuretic peptide, creatine kinase MB, cardiac troponin T, and dehydrogenation of lactate enzyme) and oxidative stress parameters (malondialdehyde and superoxide dismutase) were studied in the sera of cardiotoxicity model rats. We also identified the apoptotic mediators whose expression was induced by LUT by quantitative real-time reverse transcription-polymerase chain reaction (RT-qPCR) evaluation. In addition, we used network analysis to predict DOX-induced cardiotoxicity and protection afforded by LUT. Western blotting was used to detect the expression of associated proteins. Results LUT significantly improved DOX-induced cardiotoxicity in a dose-dependent fashion. LUT ameliorated DOX-induced weight loss and heart weight changes, as well as changes in biochemical parameters and oxidative stress parameters in heart injury model rats. LUT’s protective effect was observed via regulation of the apoptotic markers Bcl-2, Bax, and caspase-3 mRNA and protein expression levels. Network analysis showed that the AKT/Bcl-2 signalling pathway was activated; specifically, the PH domain leucine-rich repeats protein phosphatase 1 (phlpp1) was involved in the AKT/Bcl-2 signal pathway. LUT inhibited the activity of phlpp1 leading to positive regulation of the AKT/Bcl-2 pathway, which attenuated doxorubicin-induced cardiotoxicity. Conclusions These results demonstrate that LUT exerted protective effects against DOX-induced cardiotoxicity in vivo by alleviating oxidative stress, suppressing phlpp1 activity, and activating the AKT/Bcl-2 signalling pathway.
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Affiliation(s)
- YanDong Zhang
- Department of Rheumatology, First Hospital, Jilin University, ChangChun, Jilin, China
| | - ChengYuan Ma
- Department of Neurosurgery, First Hospital, Jilin University, ChangChun, Jilin, China
| | - ChunShui Liu
- Department of Hematology , First Hospital, Jilin University, ChangChun, Jilin, China
| | - Feng Wei
- Department of Hepatobiliary & Pancreas Surgery, First Hospital, Jilin University, Changchun, Jilin, China
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21
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Beaumier A, Robinson SR, Robinson N, Lopez KE, Meola DM, Barber LG, Bulmer BJ, Calvalido J, Rush JE, Yeri A, Das S, Yang VK. Extracellular vesicular microRNAs as potential biomarker for early detection of doxorubicin-induced cardiotoxicity. J Vet Intern Med 2020; 34:1260-1271. [PMID: 32255536 PMCID: PMC7255649 DOI: 10.1111/jvim.15762] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 03/13/2020] [Indexed: 01/21/2023] Open
Abstract
Background Long‐term use of doxorubicin (DOX) is limited by cumulative dose‐dependent cardiotoxicity. Objectives Identify plasma extracellular vesicle (EV)‐associated microRNAs (miRNAs) as a biomarker for cardiotoxicity in dogs by correlating changes with cardiac troponin I (cTnI) concentrations and, echocardiographic and histologic findings. Animals Prospective study of 9 client‐owned dogs diagnosed with sarcoma and receiving DOX single‐agent chemotherapy (total of 5 DOX treatments). Dogs with clinically relevant metastatic disease, preexisting heart disease, or breeds predisposed to cardiomyopathy were excluded. Methods Serum concentration of cTnI was monitored before each treatment and 1 month after the treatment completion. Echocardiography was performed before treatments 1, 3, 5, and 1 month after completion. The EV‐miRNA was isolated and sequenced before treatments 1 and 3, and 1 month after completion. Results Linear mixed model analysis for repeated measurements was used to evaluate the effect of DOX. The miR‐107 (P = .03) and miR‐146a (P = .02) were significantly downregulated whereas miR‐502 (P = .02) was upregulated. Changes in miR‐502 were significant before administration of the third chemotherapeutic dose. When stratifying miRNA expression for change in left ventricular ejection fraction, upregulation of miR‐181d was noted (P = .01). Serum concentration of cTnI changed significantly but only 1 month after treatment completion, and concentrations correlated with left ventricular ejection fraction and left ventricular internal dimension in diastole. Conclusion and Clinical Significance Downregulation of miR‐502 was detected before significant changes in cTnI concentrations or echocardiographic parameters. Further validation using a larger sample size will be required.
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Affiliation(s)
- Amelie Beaumier
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Sally R Robinson
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Nicholas Robinson
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Katherine E Lopez
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Dawn M Meola
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Lisa G Barber
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Barret J Bulmer
- Tufts Veterinary Emergency Treatment & Specialties, Walpole, Massachusetts, USA
| | - Jerome Calvalido
- Tufts Veterinary Emergency Treatment & Specialties, Walpole, Massachusetts, USA
| | - John E Rush
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
| | - Ashish Yeri
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Vicky K Yang
- Department of Clinical Sciences, Cummings School of Veterinary Medicine at Tufts University, North Grafton, Massachusetts, USA
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22
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Yu Z, Li H, Jia Y, Qiao Y, Wang C, Zhou Q, He X, Yu S, Yang T, Wu H. Ratiometric co-delivery of doxorubicin and docetaxel by covalently conjugating with mPEG-poly(β-malic acid) for enhanced synergistic breast tumor therapy. Polym Chem 2020. [DOI: 10.1039/d0py01130d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Ratiometric codelivery of doxorubicin and docetaxel through an engineered nanoconjugate based on mPEG-PMLA facilitates the accumulation of drugs at the tumor site and enhances synergistic antitumor response.
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Hallman BE, Hauck ML, Williams LE, Hess PR, Suter SE. Incidence and risk factors associated with development of clinical cardiotoxicity in dogs receiving doxorubicin. J Vet Intern Med 2019; 33:783-791. [PMID: 30697816 PMCID: PMC6430885 DOI: 10.1111/jvim.15414] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 12/12/2018] [Indexed: 11/29/2022] Open
Abstract
Background Doxorubicin (DOX) can cause cumulative cardiotoxicity in dogs, but the incidence of clinical cardiotoxicity in dogs receiving DOX has not been determined. Hypothesis/Objectives To determine if the duration of DOX infusion influences the incidence of cardiotoxicity, to characterize the incidence of clinical cardiotoxicity in dogs during or after DOX chemotherapy, and to identify any risk factors associated with cardiotoxicity. Animals Four‐hundred ninety‐four dogs that received at least 1 dose of DOX for the treatment of cancer. Methods Retrospective study of dogs that received DOX from 2006 to 2015. Results Of 494 dogs, 20 (4.0%) developed clinical cardiotoxicity. The duration of DOX infusion was not significantly associated with clinical cardiotoxicity, whereas a higher cumulative dose of DOX, higher body weight, decreases in fractional shortening after 5 doses of DOX, and development of ventricular premature contractions were significantly associated with clinical cardiotoxicity. High‐risk breeds for developing dilated cardiomyopathy had an incidence of 15.4%, whereas low‐risk breeds had an incidence of 3.0%. Conclusions and Clinical Importance Although the duration of DOX infusion did not influence the incidence of cardiotoxicity, premature contractions and decreases in fractional shortening should raise concern for the development of clinical cardiotoxicity. Overall, the incidence of clinical DOX‐induced cardiotoxicity is low, but Boxers and other breeds at high risk for dilated cardiomyopathy may be at an increased risk.
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Affiliation(s)
- Briana E Hallman
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina
| | - Marlene L Hauck
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina
| | - Laurel E Williams
- Veterinary Specialty Hospital of the Carolinas, Cary, North Carolina
| | - Paul R Hess
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina
| | - Steven E Suter
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina
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