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treatment of cats with multiple myeloma

Wen Yu, Dedong Cao, Hao Zhou, Yu Hu, Tao Guo
The association between hyperglycemia and outcomes during chemotherapy has been reported in several tumors, including multiple myeloma (MM). However, the underlying mechanism of how hyperglycemia affects the survival of MM cells during chemotherapy remain to be elucidated. MM cells were cultured in 10 mM glucose with or without chemotherapeutic agents. Following treatment of MM cells with dexamethasone or bortezomib, an MTT assay was used to evaluate the toxicity of dexamethasone or bortezomib on cell proliferation, and changes of reactive oxygen species (ROS) level were detected by flow cytometry (FCM) analysis...
April 2015: Oncology Reports
Barbara A Qurollo, Nandhakumar Balakrishnan, Coralie Zegre Cannon, Ricardo G Maggi, Edward B Breitschwerdt
Anaplasma platys (Apl), 'Candidatus Mycoplasma haemominutum' (CMh), Bartonella henselae (Bh) and Bartonella koehlerae (Bk) were confirmed by polymerase chain reaction (PCR) amplification and DNA sequencing in a cat diagnosed with multiple myeloma. Other inconsistently documented hematologic abnormalities included anemia, thrombocytopenia, eosinophilia and hypoglycemia. Persistent Apl infection was confirmed for the first time in a North American cat by sequencing three bacterial genes (16S rRNA, p44 and GroEL) in peripheral blood samples collected 100 days apart...
August 2014: Journal of Feline Medicine and Surgery
Philip J Bergman
Paraneoplastic syndromes (PNSs) are neoplasm-associated alterations in bodily structure or function or both that occur distant to the tumor. They are an extremely diverse group of clinical aberrations that are associated with the noninvasive actions of the tumor. In many situations, the PNS parallels the underlying malignancy, and therefore, successful treatment of the tumor leads to disappearance of the PNS. Alternatively, recurrence of the PNS after successful treatment signals recurrence of the tumor, and the return of the PNS often significantly precedes the detectable recurrence of the tumor...
November 2012: Topics in Companion Animal Medicine
Bhagavathi A Narayanan, Nicole A Doudican, Jeesun Park, Dazhong Xu, Narayanan K Narayanan, Ramanuj Dasgupta, Amitabha Mazumder
BACKGROUND: Development and progression of multiple myeloma is dependent on the bone marrow (BM) microenvironment, and within the BM, a number of factors are secreted, including the Wnt ligands. Bone marrow stromal cells (BMSC) secrete Wnt ligands that activate Wnt signaling in multiple myeloma. The canonical Wnt pathway which is mediated through the transcriptional effector β-catenin (β-cat) is commonly de-regulated in many cancers. Cells with active β-cat-regulated transcription (CRT) are protected against apoptosis; conversely, inhibition of CRT may prevent cell proliferation...
November 2012: Anticancer Research
Johannes Thaler, Cihan Ay, Ingrid Pabinger
Cancer patients are at increased risk of developing venous thromboembolism (VTE). Guidelines recommend routine thromboprophylaxis in hospitalised acutely ill cancer patients and in myeloma patients receiving combination treatments including thalidomide or lenalidomide. Currently, thromboprophylaxis is not recommended in cancer outpatients. It is the aim of this review to give an overview of studies that applied scores for the risk assessment of cancer-related VTE. We will also discuss randomised controlled trials (RCTs) that investigated primary thromboprophylaxis in cancer patients...
December 2012: Thrombosis and Haemostasis
Milena Krstić, Sofija P Sovilj, Sanja Grgurić-Šipka, Ivana Radosavljević Evans, Sunčica Borozan, Juan Francisco Santibanez
Three new ruthenium(II) complexes 1-3 containing N-alkylphenothiazine molecules were synthesized by reaction of [RuCl(2)(η(6)-p-cymene)](2) with chlorpromazine hydrochloride (1), trifluoperazine dihydrochloride (2) or thioridazine hydrochloride (3). The compounds of the general formula L[RuCl(3)(η(6)-p-cymene)] were characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, (1)H and (13)C NMR). Complex 2 was structurally characterized by single crystal X-ray diffraction. In vitro cytotoxic activity of complexes 1-3 were assayed in four human carcinoma cell lines MCF-7, MDA-MB-453 (breast carcinoma), SW-480 (colon carcinoma) and IM9 (myeloma multiple cells)...
September 2011: European Journal of Medicinal Chemistry
Tonya E Boyle, Marie K Holowaychuk, Allison K Adams, Steven L Marks
Three cats were evaluated at a veterinary teaching hospital for congestive heart failure (CHF) secondary to hyperviscosity syndrome from plasma cell neoplasia. All cats had severe hyperproteinemia due to hyperglobulinemia. Multiple myeloma or plasma cell neoplasia was diagnosed based on cytopathology and post mortem examination. The cats presented with signs of CHF including acute collapse, tachypnea, increased respiratory effort, and pulmonary crackles. All cats had heart murmurs and echocardiographic signs consistent with hypertrophic cardiomyopathy...
January 2011: Journal of the American Animal Hospital Association
Yoshinori Takeuchi, Haruna Iizuka, Hiroyuki Kanemitsu, Yasuhito Fujino, Ko Nakashima, Kazuyuki Uchida, Koichi Ohno, Hiroyuki Nakayama, Hajime Tsujimoto
A 10-year-old American Shorthair cat with nasal discharge, anorexia, and weight loss was found to have pancytopenia and hyperproteinaemia. Bone marrow aspiration revealed atypical plasma cells that totalled 50% of the nucleated bone marrow cells. The number of atypical plasma cells progressively increased in the peripheral blood during the observation period of 64 days. The cat did not respond to treatments with melphalan, chlorambucil, and prednisolone, and died 71 days after the initial presentation. Clinical, cytological, histopathological, and immunohistochemical findings in this case supported the diagnosis of myeloma-related disorder (MRD) with leukaemic progression...
December 2010: Journal of Feline Medicine and Surgery
Milena Krstić, Sofija P Sovilj, Sanja Grgurić-Sipka, Ivana Radosavljević Evans, Suncica Borozan, Juan Francisco Santibanez, Jelena Kocić
Three new complexes of the general formula L[RuCl(3)(DMSO)(3)] (1-3), where L = chlorpromazine hydrochloride, trifluoroperazine dihydrochloride or thioridazine hydrochloride, were prepared and characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, (1)H NMR and (13)C NMR). In addition, the crystal structure of the complex 2 containing trifluoroperazine dihydrochloride was solved by single crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group P2(1)/n, with a = 10...
September 2010: European Journal of Medicinal Chemistry
Julie Webb, Parag Chary, Nicole Northrup, Frederic Almy
A 7-year-old neutered male domestic shorthair cat was presented to the Veterinary Medical Teaching Hospital at the University of Georgia for further evaluation of a suspected osteolytic lesion of the left 10th rib. Results of a CBC and biochemistry profile revealed mild nonregenerative anemia, hyperproteinemia, hyperglobulinemia, and hypercalcemia. Serum protein electrophoresis was consistent with a monoclonal gammopathy. Marked proteinuria with an increased urine protein to creatinine ratio was found. Cytologic examination of the liver, spleen, and bone marrow revealed numerous plasma cells, many of which were erythrophagocytic...
September 2008: Veterinary Clinical Pathology
Paul J Mellor, Sean Haugland, Sue Murphy, Ken C Smith, Andrew Holloway, Joy Archer, Roger M Powell, Gerry A Polton, Severine Tasker, David McCormick, Michelle E Tempest, Pauline E McNeil, Timothy J Scase, Chris D Knott, Ugo Bonfanti, Elizabeth J Villiers, David J Argyle, Michael E Herrtage, Michael J Day
BACKGROUND: Myeloma-related disorders (MRD) are rare neoplasms of plasma cells. Published case reports describe a diversity of clinical presentations with confusing terminology and diagnostic criteria as a consequence of the assumption that MRD in cats are analogous to those in dogs or humans. OBJECTIVE: The aim of the study was to describe clinical, clinicopathologic and imaging findings, response to treatment, survival and possible associations with other diseases or vaccination in a large case series...
November 2006: Journal of Veterinary Internal Medicine
Fikry Hanna
Multiple myelomas are uncommon neoplasms of the bone marrow of cats [Weber NA, Tebeau CS (1998) An unusual presentation of multiple myeloma in two cats. Journal of the American Animal Hospital Association34 (6), 477-483]. Nine cats diagnosed with multiple myelomas were retrospectively identified over a 16-year period (1986-2002). Cats with multiple myelomas were older than 7 years (mean age 11.7 years); six males and three females were affected (2.1), but no breed predisposition was evident. Treatment of multiple myelomas consisted of supportive management in the nine cats and anti-neoplastic therapy in eight cats...
October 2005: Journal of Feline Medicine and Surgery
Lucio Catalano, Claudia Andretta, Leonardo Pace, Silvana Del Vecchio, Barbara Salvatore, Gennaro De Rosa, Maria Teresa Buonanno, Gaetano Paone, Bruno Rotoli
Staging and monitoring of multiple myeloma (MM) is mainly based on monoclonal component quantification; the absence of such a parameter renders difficult follow up of patients with nonsecretory MM (nsMM). In this study our aims were to determine the specificity and sensitivity of Tc99m-sestaMIBI scintigraphy at diagnosis and during follow up of nsMM patients. Nine nsMM patients were prospectively studied at diagnosis and during treatment for a mean time of 33 months (range: 12-65+). Tc99m-sestaMIBI (MIBI) scintigraphy was compared to conventional imaging (CI: X ray with CAT or NMR details) at diagnosis and during follow up...
August 2005: Hematology (Amsterdam, Netherlands)
Irfan Kuku, Ismet Aydogdu, Nihayet Bayraktar, Emin Kaya, Omer Akyol, M Ali Erkurt
Multiple myeloma (MM) is a neoplastic disorder characterized by monoclonal multiplying of plasma cells. Although radiation, environmental factors, viruses and other factors have been suggested as potential causes of the disease, the aetiopathogenesis of MM is still obscure. This clinical study was designed to investigate the role of reactive oxygen species (ROS) in the aetiopathogenesis of the disease and the possible relationships between treatment and ROS production. For this purpose, erythrocyte superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) activities as well as plasma nitric oxide (NO) and malondialdehyde (MDA) levels were measured in 14 MM patients newly diagnosed at stage III...
January 2005: Cell Biochemistry and Function
Timothy M Fan, Barbara E Kitchell, Ravinder S Dhaliwal, Pamela D Jones, John G Hintermeister, Biman C Paria
Twenty cats with spontaneously arising tumors received oral lomustine at a dose range of 32 to 59 mg/m2 every 21 days. Due to biohazard concerns associated with lomustine capsule reformulation, a standardized 10-mg capsule dosage was used for all cats regardless of body weight. Severe hematological toxicity was infrequent, with the incidence of either grade III or IV neutropenia and thrombocytopenia being 4.1% and 1.0%, respectively. Cats receiving higher cumulative doses of lomustine trended toward a greater likelihood for progressive neutropenia (P=0...
July 2002: Journal of the American Animal Hospital Association
K F Lyon
Lymphoplasmacytic stomatitis and gingivitis was diagnosed in an 8-year old female domestic shorthair. The cat had evidence of severe generalized inflammation of the oral cavity. Biopsy samples were evaluated and displayed a lichenoid, interface stomatitis which was predominantly lymphoplasmacytic. Serum protein electrophoresis confirmed a monoclonal gammopathy. Urine protein electrophoresis confirmed Bence-Jones proteinuria. Protein electrophoresis was used to diagnose monoclonal gammopathy (the production of a monoclonal immunoglobulin, or paraprotein, which is associated with a characteristic "M" protein spike on serum electrophoresis)...
March 1994: Journal of Veterinary Dentistry
A Cats, G J Lafeber, F Klein
(1) The phagocytosis of human IgG, IgM, and C3 by granulocytes from various rheumatoid and nonrheumatoid sera and synovial fluids (SF) was investigated by direct examination of the patient's leucocytes and indirect testing by incubation of normal donor leucocytes with various sera and SF. (2) In rheumatoid arthritis (RA) phagocytosis of IgM, IgG, and C3 was common from sera and SF. There was a strong correlation of IgM and C3 phagocytosis with the occurence of rheumatoid factor. The phagocytosed IgM is probably rheumatoid factor...
April 1975: Annals of the Rheumatic Diseases
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