Academic literature on the topic 'Ciclofosfamide'
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Journal articles on the topic "Ciclofosfamide"
Salvati, Giovanni, Mario Paracuollo, Roberta Rossano, and Marco Terribile. "Vasculite ANCA associata in un paziente con trombofilia ereditaria." Giornale di Clinica Nefrologica e Dialisi 26, no. 3 (September 23, 2014): 267–72. http://dx.doi.org/10.33393/gcnd.2014.918.
Full textMenendez-Leal, A., C. Quijano, and A. G. Menendez-Rivera. "Is gabapentin effective for preventing delayed nausea and vomiting (NV) after moderately and highly emetogenic chemotherapy (CT)?" Journal of Clinical Oncology 24, no. 18_suppl (June 20, 2006): 18575. http://dx.doi.org/10.1200/jco.2006.24.18_suppl.18575.
Full textCampos-Cabrera, Gregorio, Virgina Campos-Cabrera, and Jose-Luis Campos-Villagomez. "Treatment of Acute Lymphoblastic Leukemia in Children and Adolescents with An Anthracycline Based Regimen, but without High Doses of Cytarabine and Methotrexate: Preliminary Results of the LAFAMI-LLA-2002 Protocol." Blood 114, no. 22 (November 20, 2009): 4104. http://dx.doi.org/10.1182/blood.v114.22.4104.4104.
Full textAmadori, Dino, and Muller Fabbri. "Doxorubicina e Paclitaxel versus 5-Fluorouracile, Doxorubicina e Ciclofosfamide Come Trattamento di Prima Linea in Donne Affette da Carcinoma Mammario Metastatico: Risultati Finali di uno Studio Multicentrico Randomizzato di Fase III." Tumori Journal 87, no. 5 (September 2001): 17–18. http://dx.doi.org/10.1177/030089160108700530.
Full textCastellanos-Toledo, Araceli, Marta Zapata-Tarres, Humberto Peña-del-Castillo, and Jose de Jesus Figueroa Carbajal. "Results with the intensive chemotherapy Mexican regimen in the treatment of pediatric high-grade osteosarcoma: Experience at the Instituto Nacional de Pediatria." Journal of Clinical Oncology 31, no. 15_suppl (May 20, 2013): 10058. http://dx.doi.org/10.1200/jco.2013.31.15_suppl.10058.
Full textBrito, Olívio Malheiro, Maria Fernanda Brandão Resende Guimarães, and Cristina Costa Duarte Lanna. "Ciclofosfamida e função ovariana." Revista Brasileira de Reumatologia 48, no. 1 (February 2008): 39–45. http://dx.doi.org/10.1590/s0482-50042008000100009.
Full textSolé, A., P. J. Cordero, and F. Vera. "Toxicidad pulmonar por ciclofosfamida." Archivos de Bronconeumología 35, no. 4 (April 1999): 196–97. http://dx.doi.org/10.1016/s0300-2896(15)30283-0.
Full textARAÚJO, Évelyn de Sousa, Rosane Scussel GARCIA, Betina DAMBRÓS, Simone PIENIZ, Augusto SCHNEIDER, and Renata Torres ABIB. "Impacto da suplementação de vitamina C sobre níveis de peroxidação lipídica e glutationa reduzida em tecido hepático de camundongos com imunossupressão induzida por ciclofosfamida." Revista de Nutrição 29, no. 4 (August 2016): 579–87. http://dx.doi.org/10.1590/1678-98652016000400012.
Full textMedrano San Ildefonso, M., M. Salvatierra Arrondo, I. Pastor Mouron, and A. Marco Rived. "Neumonitis lúpica. Tratamiento con ciclofosfamida." Anales de Pediatría 70, no. 6 (June 2009): 596–98. http://dx.doi.org/10.1016/j.anpedi.2009.03.023.
Full textMonteiro, Lidiane Aparecida, Dagmar Da Costa Esteves Chaves, and Letícia Florêncio de Figueiredo. "Conhecimento dos profissionais de enfermagem sobre a ciclofosfamida em um hospital universitário." Revista Eletrônica de Enfermagem 15, no. 2 (June 30, 2013): 430–6. http://dx.doi.org/10.5216/ree.v15i2.16654.
Full textDissertations / Theses on the topic "Ciclofosfamide"
RIZZO, STEFANIA. "La terapia con ciclofosfamide riduce la frequenza delle cellule T regolatorie e promuove l’attivazione dei linfociti CD4+ T helper." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2008. http://hdl.handle.net/2108/556.
Full textProgressive tumours can escape immune recognition and destruction by actively estabilishing an immune tolerance involving immunosuppressive lymphocytes. CD4+CD25+ regulatory T cells (Treg) play a major role in the maintenance of self-tolerance and in the control of autoimmune diseases. They are also involved in the regulation of T cell homeostasis and in the modulation of immune responses to alloantigens, pathogenes and cancer cells. These findings have opened new prospects in immunotherapeutic interventions for several diseases. It has been also suggested that the depletion of these cells can bring out a better response to cancer immunotherapy. Immunotherapy is a promising antitumour strategy often and succesfull associated with current antitumour treatments. Cyclophosphamide (CTX) is an alkylating agent; it can inhibit the proliferation of the tumour cells and enhance the specific antitumour immune response after adoptive immunotherapy in mouse models. Nowadays combined regimens with CTX and immunotherapy are used in clinical trials with cancer patients. The aim of this work is to dissect the biological events induced by chemotherapy. In particular, we focused on the following ones: a) effect of cyclophosphamide treatment on immune cells and on the development of Treg cells. b) Homeostatic proliferation of adoptively transferred lymphocytes and homing of these cells to secondary lymphoid organs. c) Activation and effector functions of transferred lymphocytes. These data have been transferred to a murine cancer model, EG7-OVA. This is a tumour cell line that expresses OVA as a tumour antigen. Several reports have showed that this line is characterized by an increased frequency of CD4+CD25+ regulatory T cells in tumour-bearing mice. It has been showed that a single cyclophosphamide administration bring out a B and a T cells depletion. Interestingly, the same data was for Treg cells. The cyclophosphamide treatment promoted a long term survival and drived the homing of a specific antigen T cells to spleen and lymphonodes. Of interest, these cells acquired effector functions which may subsequently lead to antigen elimination. Moreover, cyclophosphamide enhanced the number of T CD4+ cells in draining lymphonode and it reduced the number of Treg cells. Finally, these findings reveal novel mechanisms by which chemotherapy can markedly enhance the antitumour response after adoptively transferred immune lymphocytes and they open new perspectives in combining chemotherapy and immunotherapy in cancer patients.
Barreto, Patrícia Sobierajski. "Biodegradabilidade do antineoplásico ciclofosfamida por processo anaeróbio." Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/90124.
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A ciclofosfamida (CF) é um antineoplásico derivado da mostarda nitrogenada, utilizada no tratamento de vários tipos de câncer. Esse fármaco é incorporado ao meio ambiente, principalmente por excreção urinária de pacientes em tratamento antineoplásico. A CF apresenta uma baixa biodegradabilidade em estações de tratamento de esgoto que operam com sistema aeróbio (KÜMMERER, 2001), indicando que a mesma pode retornar aos corpos d'água. Esse antineoplásico foi selecionado para realização deste estudo por ser amplamente utilizado em estabelecimentos de saúde dedicados ao tratamento de câncer. Este trabalho tem como objetivo estabelecer o grau de biodegradabilidade desse fármaco, verificando também a sua interferência sobre o processo anaeróbio. O teste de biodegradabilidade foi realizado em escala laboratorial. A efetividade do processo de biodegradação da CF foi avaliada através de medição de biogás, análises cromatográficas e toxicológicas utilizando amostras dos efluentes antes e após o tratamento. Os resultados obtidos mostraram que a taxa de remoção de CF variou entre 75,00 a 98,17 %, não sendo detectados metabólitos da degradação da CF. A produção de biogás entre as amostras ocorreu de forma análoga, indicando que a CF não interferiu negativamente na atividade dos microrganismos anaeróbios, essenciais para o sistema. Já, nos ensaios toxicológicos, as amostras de após o tratamento apresentaram uma redução da toxicidade de até 77,5 % em relação às amostras antes do tratamento. No entanto, os valores de CE50 48h encontrados nas amostras indicam que elas ainda possuem uma alta toxicidade, mesmo após o processo de tratamento anaeróbio. The cyclophosphamide (CF) is an antineoplasic derivate from the hydrogenated mustard, used in various type of cancer treatment. This drug is integrated into the environment mainly through the urine from patients under cancer treatment. It presents a low biodegradability in wastewater treatment plants operated through aerobic system (KÜMMERER, 2001), indicating that the same is able to return to the water bodies. The CF was selected for the achievement of this study due to its extended use in the cancer health establishments. The objective of this work is to assess its biodegradability degree as well as to verify its possible interference on the anaerobic process. The biodegradability test was performed on a laboratorial scale. The CF biodegradation efficiency was determined by measuring the produced biogas and through chromatographic and toxicology analysis on effluent samples before and after the treatment. The obtained results showed that the CF removal rate, for different samples, varied between 75,00 and 98.17%, sub products of CF degradation were not detected. The biogas production between tested samples occurred in a similar form, indicating that the CF does not interfere with the activity of the anaerobic microorganisms, essentials for the system. On the other hand in the toxicological tests, the samples after the treatment exhibited a toxicity decrease of 77.5% related to the samples of before the treatment, however, the obtained values of CE50 48h in the effluents still prove its high toxicity of all the samples, even after the anaerobic treatment.
Macêdo, Francisco Yuri Bulção de. "Efeito protetor da interleucina- 4 na cistite hemorrágica induzida por ifosfamida em camundongos." reponame:Repositório Institucional da UFC, 2010. http://www.repositorio.ufc.br/handle/riufc/2351.
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Hemorrhagic cystitis (HC) is a limiting side effect from the clinic use of chemotherapy agents, mainly cyclophosphamide (CYP) and ifosfamide (IFS). This is due to the fact that acrolein is a urinary metabolite of CYP and IFS, which has been demonstrated to be the causative agent of hemorrhagic cystitis (HC) induced by these compounds. Based on previous experimental studies, most of them from the Laboratory of Pharmacology of Inflammation and Cancer of Federal University of Ceará, it was demonstrated the participation of inflammatory cytokines such as TNF-α, IL-1β, and the expression of iNOS and COX-2 in ifosfamide-induced HC. Thus, knowing that interleukin-4 (IL- 4) is an anti-inflammatory cytokine able to prevent the production of TNF-α, IL-1β, and decrease the expression of inflammatory enzymes such as iNOS and COX-2, we investigated whether IL- 4 is capable of reducing inflammatory changes seen with ifosfamide-induced HC. For this, male Swiss mice (25-30 g; 6 per group) were treated with saline or ifosfamide (400 mg/kg, intraperitoneally (ip) and analyzed by changes in bladder wet weight (BWW), macroscopic and microscopic parameters, exudate, and hemoglobin quantification. In other groups, IL- 4 (0,4; 2 or 10 ng) was administered ip 1h before ifosfamide administration. In other experimental groups, C57BL/6 WT (wild type) and C57BL/6 WT IL- 4 (-/-) knockout animals were treated with ifosfamide and analyzed for changes in BWW. Immunohistochemistry to TNF-α and IL-1β as well as protein identification by Western blot assay for iNOS and COX-2 were carried out on ifosfamide and IL- 4 treated animals. In other experimental groups, anti-IL- 4 serum was given (50 µL/animal, ip) 30 min before ifosfamide. In IL- 4 treated animals, BWW change was significantly less in animals treated with ifosfamide administration only, being reduced by 27% and 39% (2 and 10 ng respectively). Vascular permeability was reduced by 29% and 24%, and hemorrhage by 47% and 61% in those animals treated with IL- 4 (2 and 10 ng respectively). Exogenous IL- 4 also attenuated TNF-α, IL-1 β, iNOS and COX-2 expression on ifosfamide treated bladders. Moreover, knockout animals for IL- 4 (-/-) and animals treated with anti-IL- 4 serum exhibit a more severe degree of inflammation when compared to the wild type mice (approximately 44% and 28% respectively). IL- 4, an anti-inflammatory cytokine, can attenuate the inflammation seen with ifosfamide-induced hemorrhagic cystitis.
A cistite hemorrágica (CH) é um efeito indesejado limitante do uso clínico dos agentes quimioterápicos do grupo das oxazafosforinas, principalmente ciclofosfamida (CFS) e ifosfamida (IFS). Isto se deve à formação de acroleína como subproduto do metabolismo dessas drogas. A partir de prévios trabalhos conduzidos no Laboratório de Farmacologia da Inflamação e do Câncer da Universidade Federal do Ceará, sabe-se que o óxido nítrico (NO) através da ativação de iNOS, o fator de ativação plaquetária, citocinas, como o TNF-α e IL-1β, e prostaglandinas, pela ativação da enzima ciclooxigenase-2 (COX-2), são mediadores chave envolvidos nos eventos inflamatórios da CH, evidenciados pelo dano urotelial, edema e hemorragia. Sabendo-se que interleucina- 4 (IL- 4) é uma citocina antiinflamatória capaz de prevenir a produção de TNF-α, IL-1β e de atenuar a expressão de enzimas inflamatórias como iNOS e COX-2, foi investigado se IL- 4 é capaz de reduzir as alterações inflamatórias vistas na CH induzida por IFS. Para tanto, camundongos Swiss (25-30 g; n=6 por grupo) foram tratados com salina ou IFS (400 mg/kg, ip), e foram analisados por alterações no peso úmido vesical (PUV), mudanças macroscópicas e microscópicas, além da quantificação de edema e hemoglobina vesical. Em outros grupos experimentais, IL- 4 (0,4; 2 ou 10 ng) foi administrada ip uma hora antes à administração de IFS. Em outro experimento, camundongos C57BL/6 selvagens e C57BL/6 nocaute para o gene da IL- 4 (-/-) foram tratados com IFS e analisados quanto a mudanças no PUV. Imunohistoquímica para IL-1β e TNF-α, bem como identificação de proteínas pela técnica de Western blot para iNOS e COX-2 foram conduzidos nos animais tratados com IL- 4. Também avaliou-se a administração de soro anti-IL- 4 (50 µl/animal, ip) em animais selvagens meia hora antes IFS. Nos animais tratados com IL- 4 (2 e 10 ng), o PUV foi significativamente reduzido em 27% e 39% respectivamente quando comparados ao grupo tratado apenas com IFS. O extravasamento vascular foi reduzido em 29% e 24% e a hemorragia em 47% e 61% nos animais tratados com IL- 4 (2 e 10 ng respectivamente para ambos). A administração de IL- 4 exógena também atenuou a expressão de TNF-α, IL-1β significativamente, e a expressão de iNOS em 27% (dose de 10 ng) e COX-2 em 80% e 76% (doses de 2 e 10 ng, respectivamente), sendo ambos resultados significantes estatisticamente. Em adição, animais nocaute para IL- 4 (-/-) e camundongos tratados com soro anti-IL- 4 exibiram um grau de CH pior quando comparados aos camundongos tratados com IFS apenas, em torno de 44% e 28% respectivamente. IL- 4, uma citocina antiinflamatória, pode reduzir os fenômenos inflamatórios vistos na CH induzida por IFS.
Llopis, García Mª Carmen. "Modelado farmacocinético de ciclofosfamida en pacientes con cáncer de mama." Doctoral thesis, Universitat de València, 2009. http://hdl.handle.net/10803/9767.
Full textCyclophosphamide (CP) was used in high dose chemotherapy (HDCT) prior to peripheral blood stem cell transplantation (PBSCT) in high risk breast cancer. CP is known to induce it own metabolism following repeated or continuous administration.The main objective was:To establish the structural population pharmacokinetic model of high dose of CP in high risk breast cancer patients. Patients and Methods: 52 females with high risk breast cancer diagnosis with normal renal and hepatic function were included in the study. Patients received a STAMP-V protocol of HDCT: cyclophosphamide 6 g/m2, thiotepa 500 mg/m2 and carboplatin 800 mg/m2 administered in intravenous continuous infusion of 96 hours and PBSCT was performed three days later. Blood samples were drawn at the 6, 24, 48, 72, 96, 97 and 99 hours since begin continuous infusion, plasma was separated and stored at -20ºC until assayed for CP using a validated high performance liquid chromatography procedure. CP plasma concentration-time profiles were described by a one-compartment model with zero-order absorption and first-order inducible elimination. CP autoinduction was modeled with an enzyme turn-over model, under the assumption that CP increases the production rate of enzyme in a linear fashion, where SCp is the slope of linear function for induction by CP. Kenz is the rate constant for first-order degradation (time-1) of the pool. To normalize the enzyme concentration to unity at baseline, the zero-order production rate of enzyme was set to Kenz (amount·time-1).Data analysis was performed using the nonlinear mixed effects modeling program (NONMEM) and the subroutine $MIX. Population and individual estimations for Cl, V, SCp, Kenz, were obtained using a general nonlinear population pharmacokinetic with first order processes and differential equations (AVDAN 6 TOL=5). Interindividual and residual variability was assumed to be proportional error model. The analysis of population pharmacokinetic behavior of CP administered in high dose can be used such a prior information in order to get an individualized dose by bayesian forecasting.Two subpopulations were identified, a fraction 43.1 % of the patient has CL equal 1.7 L/h , and that the remaining fraction 56.9% has CL 3 L/h.
Fernandes, Bruno José Dumêt. "Farmacocinética enantiosseletiva da ciclofosfamida em pacientes com câncer de mama." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-17112008-222036/.
Full textCyclophosphamide (CPA) is an alkylating oxazaphosphorine agent widely used in the treatment of multiple forms of cancer and autoimmunes disesases in adults and children. CPA is used as a racemic mixture, although preclinical data have demonstrated differences in the efficacy and toxicity of its enantiomers, with the (S)-(- )-CPA exhibiting a higher therapeutic index. The present study investigated the enantioselectivity and influence of CYP2B6, CYP2C9, CYP2C19 and CYP3A on the kinetic disposition of cyclophosphamide (CPA) in patients with breast cancer. Fifteen patients previously submitted to removal of the tumor and treated with racemic CPA (900-1000 mg) and epirubicin were included in the study. The in vivo activity of CYP3A was evaluated using midazolam as a marker drug. Serial blood samples were collected up to 24 h after administration of the first cycle of CPA. The CPA enantiomers were extracted from plasma using a mixture of ethyl acetate:chloroform (75:25, v/v) and separated on a Chiralcel® OD-R column, with the mobile phase consisting of acetonitrile:water (25:75, v/v) and 0.2% formic acid. The CPA enantiomers were analyzed by LC-MS-MS, and the protonated ions and their respective ion products were monitored at transitions of 261>141 for CPA and of 189>104 for the internal standard (antipyrine). Recovery was higher than 95% for both CPA enantiomers and the quantification limit was 2.5 ng/mL plasma for each enantiomer. The coefficients of variation and relative errors obtained for the evaluation of the intra- and interassay precision and accuracy were less than 10%. The pharmacokinetic parameters were calculated with the WinNonlin program using a monocompartmental model and first-order kinetics. The pharmacokinetic parameters presenting enantiomer ratios different from one were evaluated using the Wilcoxon test (P0.05). The kinetic disposition of CPA was enantioselective in patients with breast cancer, with plasma accumulation of the (S)-(-)-CPA enantiomer (AUC 195.00 vs 174.80 g.h/mL) due to the preferential clearance of the (R)-(+)-CPA enantiomer (5.13 vs 5.99 L/h). Clearances of both CPA enantiomers did not differ between the CYP2B6, CYP2C9 and CYP2C19 genotypes or as a function of in vivo activity of CYP3A evaluated by the midazolam clearance.
Delarmelina, Juliana Macedo. "Avaliaçãoda ação antimutagênica da Ipriflavonacontra os danos induzidos por ciclofosfamida." Universidade Federal do Espírito Santo, 2012. http://repositorio.ufes.br/handle/10/5759.
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Ipriflavone is a synthetic isoflavone derivative from daidzein and clinically prescribed for treating and preventing osteoporosis in postmenopausal women. We investigated the potential of this drug against the cytotoxic and mutagenic effects induced by cyclophosphamide (CPA) chemotherapy, using the micronucleus assay in bone marrow erythrocytes of Swiss albino mice (Mus musculus) in vivo. To evaluate their possible mechanisms of action, performed the evaluation of antioxidant activity by DPPH assay. For in vivo testing was carried out three protocols: pretreatment, simultaneous treatment and post treatment. The ipriflavone was evaluated in three different concentrations dissolved in DMSO (1,71; 8,57 e 42,85mg.kg-1 m.c) and administered by oral via. The bone marrow was collected for the evaluation of polycromatic erythrocytes (PCE) and the ratio PCE/(PCE+NCE) (polychromatic erythrocytes / polychromatic erythrocytes + normochromatic erythrocytes). For the DPPH test were assessed five concentrations of ipriflavone (500, 250, 150, 50 e 10μg.mLˉ¹) using DPPH solution (60μM). The results of in vivo tests show that the three concentrations of ipriflavone studied significantly reduced the frequency of MNPCEs induced by CPA, in the pre-treatment protocol and demonstrated the same effect at the concentrations of 1,71 e 42,85mg.kg-1 m.c in the post-treatment. However, simultaneous treatment did not reduce the frequency of MNPCE in any of the concentrations tested. In all protocols performed, the ratio PCE/(PCE+NCE) increased. There was variation between the genders in some of the experimental groups and the evaluation of antioxidant activity of ipriflavone showed no ability to donate hydrogens, suggesting that it acts through other mechanisms, such as inactivation of the enzyme activity of cytochrome P-450
Ipriflavona é uma isoflavona sintética derivada da daidzeína e utilizada no tratamento e prevenção da osteoporose em mulheres pós-menopausadas. Investigamos o potencial dessa droga contra os efeitos citotóxico e mutagênico induzidos pelo quimioterápico ciclofosfamida (CPA), por meio do ensaio do micronúcleo em eritrócitos de medula óssea de camundongos albinos Swiss (Mus musculus) in vivo. Para avaliar um de seus possíveis mecanismos de ação realizamos a avaliação de sua atividade antioxidante pelo método de DPPH. Para os testes in vivo foram realizados três protocolos: pré-tratamento, tratamento simultâneo e pós-tratamento. A ipriflavona foi avaliada em três concentrações dissolvidas em DMSO (1,71; 8,57 e 42,85mg.kg-1 m.c) e administrada via oral. A medula óssea foi coletada para a avaliação dos eritrócitos policromáticos micronucleados (MNPCEs) e da razão PCE/(PCE+NCE) (eritrócitos policromáticos/eritrócitos policromáticos + eritrócitos normocromáticos). Para o teste de DPPH foram avaliadas 5 concentrações de ipriflavona (500, 250, 150, 50 e 10μg.mLˉ¹) utilizando solução de DPPH 60μM. Os resultados obtidos nos testes in vivo demonstram que a ipriflavona nas três concentrações pesquisadas reduziu significativamente a frequência de MNPCEs induzidos pela CPA no protocolo de pré-tratamento e demonstrou o mesmo efeito nas concentrações de 1,71 e 42,85mg.kg-1 m.c, no pós-tratamento. Entretanto, no tratamento simultâneo, ela não reduziu a frequência de MNPCE em nenhuma das concentrações testadas. Em todos os protocolos realizados houve o aumento da razão PCE/(PCE+NCE), demonstrando sua eficácia na redução da citotoxicidade induzida pela CPA. Houve variação entre os gêneros em alguns dos grupos experimentais. A avaliação da atividade antioxidante da ipriflavona revelou sua ausência de capacidade em doar hidrogênios para o radical DPPH, sugerindo que a mesma atua por meio de outros mecanismos, como por exemplo, inativação da atividade enzimática das isoenzimas do citocromo P-450
Castro, Rodríguez Azalea, Cadena Julieta /. Castillo, Merino Miriam Verónica Flores, and Guerrero Jorge H. Serment. "“INDUCCIÓN DEL DAÑO AL ADN IN VITRO POR CICLOFOSFAMIDA MEDIDO CON EL ENSAYO COMETA Y SU ASOCIACIÓN CON LOS POLIMORFISMOS DE GST”." Tesis de maestría, UNIVERSIDAD AUTONOMA DEL ESTADO DE MEXICO, 2016. http://hdl.handle.net/20.500.11799/65493.
Full textTrivia, Ana Letícia. "Análise do efeito de quimioterápicos em Chrysomya megacephala (Diptera : Calliphoridae)." reponame:Repositório Institucional da UFSC, 2017. https://repositorio.ufsc.br/xmlui/handle/123456789/178975.
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Uma das principais aplicações da entomologia forense médico-legal é a estimativa do intervalo pós-morte (IPM). Entretanto, certas substâncias químicas presentes em um cadáver podem interferir no desenvolvimento dos insetos que se alimentam dele, sendo importante conhecer estes efeitos para uma estimativa mais precisa do IPM. Entomotoxicologia é o ramo da entomologia forense que estuda o uso de insetos necrófagos na detecção e análise de drogas e outras substâncias em tecidos em decomposição, além de investigar seus possíveis efeitos no desenvolvimento destes artrópodes. Sendo assim, o objetivo principal deste trabalho foi investigar o impacto dos quimioterápicos ciclofosfamida (CF) e metotrexato (MTX) no desenvolvimento pós-embrionário de Chrysomya megacephala. Para isso, foram feitos experimentos in vitro com diferentes concentrações destas drogas incorporadas em carne bovina moída, simulando as dosagens injetadas em humanos que passam por quimioterapia. Foram feitos cinco tratamentos para a alimentação das larvas em cada experimento, sendo um controle negativo (água destilada). Para a CF foram utilizadas ½ Dose inicial intravenosa - DIIv (25 mg/kg), 1 DIIv (50 mg/kg), 2 DIIv (100 mg/kg) e 4 DIIv (200 mg/kg); e para o MTX foram utilizadas ½ Dose Inicial Intraperitoneal - DIIp (5 mg/kg), 1 DIIp (10 mg/kg), 2 DIIp (20 mg/kg) e 4 DIIp (40 mg/kg). Todos os tratamentos foram realizados em triplicata e mantidos a 25°C em estufa BOD. A cada 12 horas eram retiradas três larvas de cada tratamento, sacrificadas e o comprimento total de cada uma era medido com auxílio de um paquímetro digital, até o abandono da dieta para pupariação. Foi também realizado um experimento a parte sem manipulação das larvas para calcular as taxas de sobrevivência larval e total para cada tratamento, além da proporção sexual das moscas emergidas. ANOVA e teste Tukey foram realizados para comparar o efeito das drogas sobre o desenvolvimento de C. megacephala. Os resultados indicaram claramente que ambos os medicamentos afetaram o desenvolvimento e sobrevivência de C. megacephala, porém de forma heterogênea. Além disso, houve um desvio da razão sexual esperada nas larvas expostas ao MTX, emergindo uma quantidade significativamente maior de fêmeas do que machos. Estes fatores de interferência negativa devem ser considerados em casos de morte suspeita de pessoas que faziam uso destes medicamentos para que não haja uma subestimativa de IPM.
Abstract : One of the main applications of medico-legal forensic entomology is the estimation of the postmortem interval (PMI). However, certain chemical substances present in a cadaver can interfere in the development of the insects that feed on it, thus it is important to know these effects for a more accurate estimation of PMI. Entomotoxicology is the branch of forensic entomology that studies the use of scavenger insects in the detection and analysis of drugs and other substances in decomposing tissues, in addition to investigating their possible effects on the development of these arthropods. Therefore, the main purpose of this work was to investigate the impact of the chemotherapeutic drugs cyclophosphamide (CF) and methotrexate (MTX) on the post-embryonic development of Chrysomya megacephala. For this, in vitro experiments were performed with different concentrations of these drugs incorporated in minced beef, simulating the dosages injected in humans that undergo chemotherapy. Five treatments were done to feed the larvae in each experiment, with one as a negative control (distilled water). For CF, ½ initial intravenous dose - DIIv (25 mg/kg), 1 DIIv (50 mg/kg), 2 DIIv (100 mg/kg) and 4 DIIv (200 mg/kg) were used; and for MTX ½ Initial Intraperitoneal Dose - DIIp (5 mg/kg), 1 DIIp (10 mg/kg), 2 DIIp (20 mg/kg) and 4 DIIp (40 mg/kg) were used. All treatments were performed in triplicate and maintained at 25°C in a BOD chamber. At every 12 hours three larvae of each treatment were removed, sacrificed and the total length of each one was measured with the aid of a digital caliper until the abandonment of the diet for pupariation. A separate experiment without manipulation of the larvae was also performed to calculate the larval and total survival rates for each treatment, in addition to the sex ratio of the emerged flies. ANOVA and Tukey test were performed to compare the effect of drugs on the development of C. megacephala. The results clearly indicated that both drugs affected the development and survival of C. megacephala, but in a heterogeneous manner. In addition, there was a deviation in the expected sex ratio in MTX-exposed larvae, with significantly more females than males emerging. These negative interference factors should be considered in cases of suspected death of people using these drugs so that there is no underestimation of PMI.
Nascimento, Espedito Ladier do. "Efeito antioxidante do fitomedicamento Echinodorus macrophyllus na nefrotoxicidade do quimioterápico ciclofosfamida." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/7/7139/tde-12092014-140348/.
Full textHerbal medicines are those whose raw materials are exclusively originated from vegetables, excepting any association that includes in its composition other isolated active substances. Acute kidney injury (AKI) is characterized by a rapid decline in renal function defined by an absolute increase in serum creatinine of at least 0.3 mg/dL, a 50% (1.5 times) baseline increase or urinary flow reduction, documented as oliguria or less than 0.5 ml/kg per hour for a period surpassing six hours. This study investigated the protective effect of Echinodorus macrophyllus (Ema) in cyclophosphamide-induced nephrotoxicity. We used male adults Wistar mice, divided into four groups: Control group: animals receiving sodium chloride solution 0.9 intraperitoneally (ip) (1.5 ml/kg, single dose); Ema: animals that received Echinodorus macrophyllus (2g/kg one time daily for 5 days by gavage); CCF: animals receiving cyclophosphamide (150mg/kg single dose, i.p), CCF + Ema: animals receiving Echonodorus macrophyllus and cyclophosphamide on day 5. We evaluated renal function (RF) (creatinine clearance), oxidative damage (urinary peroxides, thiobarbituric acid reactive substances - TBARS and thiols in kidney tissues) and we also carried out histologic kidney analyses (tubulointerstitial injury). Data confirmed the oxidative nephrotoxic injury induced by cyclophosphamide. Ema proved to have renoprotective and antioxidant effects, with improvement in RF, reduced levels of lipid peroxidation and oxidative metabolites. The histologic analysis indicated significant damage to renal tissue by CCF, which was reduced in animals treated with Ema. This study clearly demonstrates LRA induced by cyclophosphamide and the renoprotective effect of Ema
Martins, Isarita. "Avaliação da exposição dos profissionais da área da saúde à ciclofosfamida." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/9/9141/tde-28112012-132904/.
Full textWorkers in laboratories and hospitals have potential exposure to numerous occupational hazards. The widespread use of antineoplastic drugs in chemotherapy is considered an important risk to staff involved in the preparation and administration to these drugs. Careless handling may lead toxic effects among the occupational exposure subjects. Some antineoplastic drugs were classified by IARC as carcinogenic and probably carcinogenic for humans. For carcinogenic agents the absence of a no-adverse-effect-Ievel is supposed. In this study cyclophosphamide was quantified adapting a previous analytical method by gas chromatography coupled mass spectrometry (GC-MS) after solid phase extraction and derivatization with trifluoroacetic anhydride. This drug in fact is one of the most frequently used alkylating antineoplastic agent for different types of tumors and classified as human carcinogen. The ifosfamide was used as internal standard and the drug was measured by analysis in wipe samples and gloves, collected from four different hospitals, within a range from 1 to 100 ng/mL. The values of variation coefficient varied from 0.5 to 10% (intra-assay) and from 0 to 19% (interassay). Frozen reference wipe samples containing cyclophosphamide were analysed over one month and no significant loss was observed. The range obtained for bias assay was 83-116% and the recovery was 98.9%. The cyclophosphamide was measured in 176 samples with values ranging from below limit of quantification (1.0 ng/mL) to 141186 ng. The results, well related with those reported in literature, suggest that this method can be used to identify the cyclophosphamide from surfaces and materials samples and can be considered useful in exposure assessment to this drug.
Book chapters on the topic "Ciclofosfamide"
Falcão, Aline Sousa, and Claudeth Freitas da Costa. "ASSISTÊNCIA DE ENFERMAGEM AO PACIENTE EM USO DE CICLOFOSFAMIDA EM DOENÇAS AUTOIMUNES REUMÁTICAS." In Science e saúde: Atuação multiprofissional na área da saúde, Volume 1, 89–97. Editora e-Publicar, 2022. http://dx.doi.org/10.47402/ed.ep.c202212479405.
Full textGRADELA, ADRIANA, OHANA LOPES CARDOSO, JOSILANE SOARES SILVA, EDNÉIA PAIVA DE OLIVEIRA NORONHA, VANESSA SOBUE FRANZO, and MARCELO DOMINGUES FARIA. "MORFOMETRIA MACROSCÓPICA DA GLÂNDULA VESICULAR DE COBAIOS PÚBERES TRATADOS COM PRÓPOLIS E CICLOFOSFAMIDA SOZINHAS OU EM ASSOCIAÇÃO." In Medicina: a ciência da vida. Editora Conhecimento Livre, 2020. http://dx.doi.org/10.37423/200601332.
Full textTEIXEIRA DA SILVA, GESSICA, TRICIA MAIARA DOS SANTOS GOMES, INGRID CABRAL DE MELO SILVA, and THAMIRES LIRA FONSECA PEREIRA. "INTERAÇÕES MEDICAMENTOSAS DE ANTINEOPLÁSICOS COM PLANTAS MEDICINAIS: UMA REVISÃO PAUTADA NA FARMACODINÂMICA, FARMACOCINÉTICA E QUÍMICA DE PRODUTOS NATURAIS." In Ciência e democracia - o que essa relação depende de nós? Editora Realize, 2022. http://dx.doi.org/10.46943/vii.conapesc.2022.01.080.
Full textConference papers on the topic "Ciclofosfamide"
ALMEIDA, MARIA EMILIA VELOSO, and GEOFFROY ROGER POINTER MALPASS. "DEGRADAÇÃO POR PROCESSOS ELETROQUÍMICOS OXIDATIVOS AVANÇADOS DA CICLOFOSFAMIDA EM MEIO À URINA ARTIFICIAL." In XIII Congresso Brasileiro de Engenharia Química em Iniciação Científica. São Paulo: Editora Blucher, 2019. http://dx.doi.org/10.5151/cobecic2019-eat53.
Full textMelo, Mirthys Alana Trajano da Silva, Thiago Emannuel Pessoa Da Silva, Luiza Smith Branquinho, Rebecca Francinny Silva Oliveira Pacheco, and Julya Myrrha Jenuino Feitosa Barroca. "A QUIMIOTERAPIA METRONÔMICA NO TRATAMENTO DE NEOPLASIAS MAMÁRIAS." In I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1821.
Full textSlowik, Renata, Ana Beatriz Nerone, Julia Valle Pezzini, Matheus Senedese Rampazzo, and Eni Alcântara Picchioni. "EVOLUÇÃO E PRINCIPAIS DESAFIOS DO TRANSPLANTE ALOGÊNICO HAPLOIDÊNTICO DE CÉLULAS-TRONCO HEMATOPOIÉTICAS: UMA REVISÃO BIBLIOGRÁFICA." In I Congresso Brasileiro de Hematologia Clínico-laboratorial On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/615.
Full textGama de Oliveira, Thaís, William Rodrigues da Silva, Juliana Batista Alvarenga, José de Assis Silva Júnior, and Luisa Aguirre Buexm. "Mieloma múltiplo: relato de caso clínico." In Semana Científica da Faculdade de Medicina de Campos. Faculdade de Medicina de Campos, 2022. http://dx.doi.org/10.29184/anaisscfmc.v12022p19.
Full textSiebra, Carolina Costa, Maria Júlia De Sousa Silva, and Tathiely Costa Ferreira Lima. "MASTOCITOMA CANINO: REVISÃO DE LITERATURA." In I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1834.
Full textPinheiro, Rachel Marques, Mateus Cortines Filipecki, and Thatiane Alves Nogueira. "SARCOMA DE APLICAÇÃO FELINO: REVISÃO DE LITERATURA." In I Congresso On-line Nacional de Clínica Veterinária de Pequenos Animais. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1844.
Full textFonseca, Maria Eduarda Richa, Fernanda Freitas Oliveira Cardoso, Vanessa Campos Baptista, Márcio Bezerra Barcellos, Joffre Amim Junior, and Antonio Rodrigues Braga Neto. "Coriocarcinoma pós-parto." In 45º Congresso da SGORJ XXIV Trocando Ideias. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/jbg-0368-1416-20211311136.
Full textFonseca, Maria Eduarda Richa, Fernanda Freitas Oliveira Cardoso, Vanessa Campos Baptista, Joffre Amim Junior, Jorge Fonte de Rezende Filho, and Antonio Rodrigues Braga Neto. "Coriocarcinoma tubário: relato de caso." In 45º Congresso da SGORJ XXIV Trocando Ideias. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/jbg-0368-1416-20211311137.
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