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1.
Rev. am. med. respir ; 14(3): 312-314, set. 2014. ilus
Article in Spanish | LILACS | ID: lil-734442

ABSTRACT

Se trata de un paciente masculino de 43 años, con antecedentes de VIH/SIDA, 150 linfocitos CD4/mm3 y toxoplasmosis cerebral. Consultó por un cuadro de 20 días de evolución caracterizado por fiebre de hasta 40°C, tos con expectoración mucosa y diarrea. Habiendo recibido diferentes esquemas antibióticos, se internó con diagnóstico de neumonía de lenta resolución. Al examen físico presentaba: TA 120/85, temperatura 39.2 °C, FC 104/min, FR 28/min, saturación 97% respirando aire, hipoventilación en base pulmonar izquierda y crepitantes en campo medio izquierdo


Subject(s)
Tuberculosis, Pulmonary , Neoplasms
2.
Rev. am. med. respir ; 14(3): 312-314, set. 2014. ilus
Article in Spanish | BINACIS | ID: bin-131385
3.
Medicina (B Aires) ; 67(1): 57-60, 2007.
Article in Spanish | MEDLINE | ID: mdl-17408023

ABSTRACT

The advances in genetics and molecular biology have raised new areas in medicine, such as pharmacogenomics, which tries to predict drug responses and toxicities based on the individual genetic variability, describing the so called: pharmacogenomic syndromes. Oncology would find this development extremely useful because of the severe toxicity of chemotherapy. There are a lot of genetic loci under investigation for their potential in predicting drug toxicity, but only three of them have showed clinical usefulness up to now. In particular, quantification of the number of thymine-adenine (TA) dinucleotics in the promoter region of the UDP-glucuronosyl-transferase 1A1 enzime (TA indel) proved to be capable of predicting severe neutropenia in patients exposed to intermediate or high doses of irinotecan. Herein we report a case of a patient with small cell lung cancer who suffered severe hematological and gastrointestinal toxicity after being treated with relatively low doses (65 mg/m(2)) of irinotecan and whose leucocyte DNA analysis showed the presence of seven TA repetitions in both alleles. This case is an example of the clinical applicability and the utility of the test as a toxicity predictor. We also discuss the clinical decisions that may be taken with these patients.


Subject(s)
Antineoplastic Agents, Phytogenic/adverse effects , Camptothecin/analogs & derivatives , Carcinoma, Small Cell/drug therapy , Genetic Variation/genetics , Glucuronosyltransferase/genetics , Lung Neoplasms/drug therapy , Neutropenia/chemically induced , Camptothecin/administration & dosage , Camptothecin/adverse effects , Female , Genetic Markers/drug effects , Genetic Markers/genetics , Glucuronosyltransferase/drug effects , Humans , Irinotecan , Middle Aged , Neutropenia/genetics , Risk
4.
Medicina (B.Aires) ; 67(1): 57-60, jan.-fev. 2007. ilus
Article in Spanish | LILACS | ID: lil-464746

ABSTRACT

Los avances en genética y biología molecular han impulsado la aparición de nuevas áreas de estudio en la medicina, como la farmacogenómica, la cual intenta predecir la respuesta y toxicidad a drogas en función de la variabilidad genética de cada individuo, constituyendo los llamados síndromes fármacogenómicos. La oncología podría beneficiarse debido a la gran toxicidad de sus fármacos. Hay varios loci genéticos que se están analizando por su potencial valor predictivo y hasta ahora sólo tres de ellos demostraron cierto grado de utilidad clínica. En especial, el estudio del número de repeticiones del dinucleótido timina-adenina (TA) en el promotor de la enzima UDP-glucuronosil-transferasa (UGT) mostró ser capaz de predecir neutropenia severa en pacientes expuestos a dosis intermedias y altas de irinotecan. Comunicamos el caso de una paciente con cáncer de pulmón de células pequeñas que padeció toxicidad hematológica y gastrointestinal grave tras haber sido tratada con dosis relativamente bajas (65 mg/m2) de irinotecan, y en quien un análisis del ADN leucocitario mostró la presencia de homocigosis para siete repeticiones de TA. Este caso es un ejemplo de aplicabilidad clínica del test, se discute su utilidad como predictor de toxicidad y la conducta a tomar frente a pacientes con estas características.


The advances in genetics and molecular biology have raised new areas in medicine, such as pharmacogenomics, which tries to predict drug responses and toxicities based on the individual genetic variability, describing the so called: pharmacogenomic syndromes. Oncology would find this development extremely useful because of the severe toxicity of chemotherapy. There are a lot of genetic loci under investigation for their potential in predicting drug toxicity, but only three of them have showed clinical usefulness up to now. In particular, quantification of the number of thymine-adenine (TA) dinucleotics in the promoter region of the UDP-glucuronosyl-transferase 1A1 enzime (TA indel) proved to be capable of predicting severe neutropenia in patients exposed to intermediate or high doses of irinotecan. Herein we report a case of a patient with small cell lung cancer who suffered severe hematological and gastrointestinal toxicity after being treated with relatively low doses (65 mg/m2) of irinotecan and whose leucocyte DNA analysis showed the presence of seven TA repetitions in both alleles. This case is an example of the clinical applicability and the utility of the test as a toxicity predictor. We also discuss the clinical decisions that may be taken with these patients.


Subject(s)
Humans , Female , Middle Aged , Camptothecin/adverse effects , Camptothecin/analogs & derivatives , Carcinoma, Small Cell/drug therapy , Genetic Variation , Glucuronosyltransferase/genetics , Lung Neoplasms/drug therapy , Neutropenia/chemically induced , Antineoplastic Agents, Phytogenic/adverse effects , Camptothecin/administration & dosage , Genetic Markers/drug effects , Genetic Markers/genetics , Glucuronosyltransferase/drug effects , Neutropenia/genetics , Risk
5.
Medicina (B.Aires) ; 67(1): 57-60, jan.-fev. 2007. ilus
Article in Spanish | BINACIS | ID: bin-123131

ABSTRACT

Los avances en genética y biología molecular han impulsado la aparición de nuevas áreas de estudio en la medicina, como la farmacogenómica, la cual intenta predecir la respuesta y toxicidad a drogas en función de la variabilidad genética de cada individuo, constituyendo los llamados síndromes fármacogenómicos. La oncología podría beneficiarse debido a la gran toxicidad de sus fármacos. Hay varios loci genéticos que se están analizando por su potencial valor predictivo y hasta ahora sólo tres de ellos demostraron cierto grado de utilidad clínica. En especial, el estudio del número de repeticiones del dinucleótido timina-adenina (TA) en el promotor de la enzima UDP-glucuronosil-transferasa (UGT) mostró ser capaz de predecir neutropenia severa en pacientes expuestos a dosis intermedias y altas de irinotecan. Comunicamos el caso de una paciente con cáncer de pulmón de células pequeñas que padeció toxicidad hematológica y gastrointestinal grave tras haber sido tratada con dosis relativamente bajas (65 mg/m2) de irinotecan, y en quien un análisis del ADN leucocitario mostró la presencia de homocigosis para siete repeticiones de TA. Este caso es un ejemplo de aplicabilidad clínica del test, se discute su utilidad como predictor de toxicidad y la conducta a tomar frente a pacientes con estas características.(AU)


The advances in genetics and molecular biology have raised new areas in medicine, such as pharmacogenomics, which tries to predict drug responses and toxicities based on the individual genetic variability, describing the so called: pharmacogenomic syndromes. Oncology would find this development extremely useful because of the severe toxicity of chemotherapy. There are a lot of genetic loci under investigation for their potential in predicting drug toxicity, but only three of them have showed clinical usefulness up to now. In particular, quantification of the number of thymine-adenine (TA) dinucleotics in the promoter region of the UDP-glucuronosyl-transferase 1A1 enzime (TA indel) proved to be capable of predicting severe neutropenia in patients exposed to intermediate or high doses of irinotecan. Herein we report a case of a patient with small cell lung cancer who suffered severe hematological and gastrointestinal toxicity after being treated with relatively low doses (65 mg/m2) of irinotecan and whose leucocyte DNA analysis showed the presence of seven TA repetitions in both alleles. This case is an example of the clinical applicability and the utility of the test as a toxicity predictor. We also discuss the clinical decisions that may be taken with these patients. (AU)


Subject(s)
Humans , Female , Middle Aged , Camptothecin/analogs & derivatives , Camptothecin/adverse effects , Neutropenia/chemically induced , Glucuronosyltransferase/genetics , Genetic Variation/genetics , Lung Neoplasms/drug therapy , Carcinoma, Small Cell/drug therapy , Camptothecin/administration & dosage , Neutropenia/genetics , Glucuronosyltransferase/drug effects , Antineoplastic Agents, Phytogenic/adverse effects , Risk , Genetic Markers/drug effects , Genetic Markers/genetics
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