ABSTRACT
Objetivo: Determinar la incidencia de infección por virus de inmunodeficiencia humana y el efectos sobre el peso del neonato, en embarazadas que acuden al Hospital Universitario de Caracas. Métodos: Se incluyeron las gestantes seropositivas para infección por virus de inmunodeficiencia humana. Se practicó Elisa para infección por virus de inmunodeficiencia humana, Webstern blot, hematología y química, linfocitos CD3, CD4 y CD8 por citometría, carga viral, se registró el peso de 204 neonatos y el esquema de tratamiento recibido. Resultados: La frecuencia de infección por virus de inmunodeficiencia humana en gestantes aumentó desde el año 2000; la mayoría ocurre durante el tercer trimestre. El 68,55 % de las gestantes en segundo y tercer trimestre presentaron hemoglobina mayor a 11 g y el 31,45 % tuvo hemoglobina de 7 a 10 g. La relación CD4/CD8 estuvo disminuida. Los niveles de CD4 del segundo trimestre fueron más bajos en pacientes con hemoglobina entre 7 y 10 gramos. Esta relación no se vio en el tercer trimestre, quizás por el grado de supresión viral por el tratamiento; las madres del 95,7 % de los neonatos con bajo peso al nacer recibieron terapia antirretroviral combinada, no hubo neonatos con bajo peso al nacer hijos de madres que recibieron monoterapia. Conclusión: La prevalencia de infección por virus de inmunodeficiencia humana fue 1,6 %. La prevalencia de anemia fue de 31,45 %. La relación CD4/CD8 estaba disminuida. Hubo 11,3 % de neonatos con bajo peso al nacer, en 95,7 % las madres recibieron terapia antirretroviral combinada(AU)
Objective: To determine the incidence of infection by human immunodeficiency virus and the effects on the weight of the newborn, in pregnant women who attend the University Hospital of Caracas. Methods: Seropositive pregnant women for human immunodeficiency virus infection were included. Elisa was performed for human immunodeficiency virus infection, Websternblot, hematology and chemistry, CD3, CD4 and CD8 lymphocytes by cytometry, viral load, the weight of 204 neonates and the treatment scheme received were recorded. Results: The frequency of infection by human immunodeficiency virus in pregnant women has increased since the year 2000; most occur during the third trimester. 68.55% of pregnant women in the second and third trimester had hemoglobin greater than 11 g and 31.45% had hemoglobin between 7 and 10 g. The CD4/CD8 ratio was decreased. Second trimester CD4 counts were lowest in patients with hemoglobin between 7 and 10 grams. This relationship was not seen in the third trimester, perhaps because of the degree of viral suppression by treatment; mothers of 95.7% of low birth weight infants received combination antiretroviral therapy, there were no low birth weight infants born to mothers who received monotherapy. Conclusion: The prevalence of human immunodeficiency virus infection was 1.6%. The prevalence of anemia was 31.45%. The CD4/CD8 ratio was decreased. There were 11.3% of neonates with low birth weight, in 95.7% the mothers received combination antiretroviral therapy(AU)
Subject(s)
Humans , Female , Pregnancy , Infant, Newborn , Adolescent , Adult , Acquired Immunodeficiency Syndrome , HIV , Antiretroviral Therapy, Highly Active , Pregnant Women , Hematology , Infections , Pregnancy Trimester, Second , Pregnancy Trimester, Third , Infant, Very Low Birth Weight , Viral Load , AnemiaABSTRACT
La enzima lactato deshidrogenasa (LDH) es un factor pronóstico en Linfoma No Hodgkin (LNH). El objetivo del trabajo consistió en evaluar prospectivamente el valor pronóstico de las isoenzimas de LDH en pacientes con LNH. Se estudiaron 67 pacientes de primera consulta con diagnóstico de LNH, sin tratamiento previo, VIH negativo y sin otras enfermedades, tiempo promedio de seguimiento 30 meses (rango 3-48 meses). Las muestras de suero se recolectaron previas al tratamiento. La LDH total (LDHT) e isoenzimas de LDH se determinaron respectivamente por método cinético y electroforesis de proteínas en gel de agarosa. Se procesaron muestras de 122 controles sanos para establecer los valores de referencia de las isoenzimas de LDH. 49(73%) LNH agresivos y 18(27%) LNH indolentes y según el Índice Pronóstico Internacional (IPI), 60 (90%) bajo riesgo y 7(10%) alto riesgo. Las isoenzimas LDH1, LDH2, LDH3, LDH4 y LDH5 presentaron niveles absolutos significativamente elevados en 25 (37%), 29 (43%), 32 (48%), 20 (39%) y 11 (16%) de los casos respectivamente (p<0,0001). La actividad porcentual de LDH4 en los pacientes con LNH agresivos fue significativamente superior respecto al grupo de LNH indolentes (p=0,01). En el análisis univariado, valores absolutos elevados de LDH1 se asociaron significativamente con una sobrevida global disminuida (p=0,0064) en el grupo total de pacientes. LDH1 conservó su valor pronóstico aún en el grupo de pacientes con valores normales de LDHT (p=0,04). En pacientes con LNH agresivos, valores elevados de LDHT e IPI alto riesgo se asociaron significativamente con una menor sobrevida global (p<0,05). En el análisis multivariado la LDHT e IPI resultaron factores pronósticos independientes de la sobrevida. Alteraciones específicas del patrón de isoenzimas de LDH sugieren la relación de LDH4 con la biología del tumor y su actividad proliferativa en LNH agresivos y el valor pronóstico de LDH1 como factor adverso de la sobrevida en el análisis univariado.
Lactate dehydrogenase (LDH) is a prognostic factor in non-Hodgkin lymphoma (NHL). Our objective was to evaluate prospectively the prognostic value of LDH isoenzymes in patients with NHL. We studied 67 newly diagnosed NHL patients, previously untreated, HIV-negative and free from other disease, median follow-up of 30 month (range 3-48 month). Before starting treatment serum samples were collected for the determination of total LDH (LDHT) and LDH isoenzymes that were respectively assayed by kinetic method and protein electrophoresis in agarose gel. In order to set reference values of LDH isoenzymes samples from122 healthy controls were processed. Results: 49(73%) of the patients were aggressive NHL and 18(27%) indolent NHL and according to the International Prognostic Index (IPI), 60(90 %) low risk and 7(10%) high risk. High absolute values of LDH1, LDH2, LDH3, LDH4 and LDH5 isoenzymes were significantly elevated in 25 (37%), 29 (43%), 32 (48%), 20 (39%) and 11 (16%) of cases respectively (p<0,0001). The percentage value of LDH4 activity in aggressive NHL patients was significantly higher compared to indolent NHL group (p=0,01). In univariate analysis increased LDH1 absolute values were significantly associated with decreased overall survival in the total group of patients (p = 0.0064). LDH1 remained a prognostic factor for survival even when considering the group of patients with normal serum LDHT values (p = 0.04). In patients with aggressive NHL increased values of LDHT and high risk IPI were significantly associated with decreased overall survival (p<0.05). In a multivariate analysis LDHT and IPI score were independent prognostic factor for survival.
Subject(s)
Humans , Male , Adult , Female , Young Adult , Isoenzymes/analysis , Isoenzymes/isolation & purification , L-Lactate Dehydrogenase/analysis , L-Lactate Dehydrogenase/isolation & purification , L-Lactate Dehydrogenase/blood , Lymphoma, Non-Hodgkin/diagnosis , Lymphoma, Non-Hodgkin/etiology , Lymphoma, Non-Hodgkin/physiopathology , Blood Chemical Analysis , Blood Physiological Phenomena/immunology , Medical OncologyABSTRACT
There is insufficient information on the characteristics of chronic lymphocytic leukemia (CLL) in Latin American patients. Immunoglobulin variable-region heavy-chain (IGVH) gene usage and mutation status and prognostic factors were investigated in patients resident in Venezuela. The most frequently used IGVH family genes were: VH3 > VH1 > VH4 > VH5, with a high incidence of IGVH1.69 and IGVH3.21 genes, and 55.2% of IGVH genes were mutated. Analysis of HCDR3 (third complementarity-determining region of the heavy chain) revealed that 24% of Venezuelan HCDR3s belonged to a CLL stereotyped HCDR3. Results for prognostic factors were similar to those reported previously for Caucasian populations. Interestingly, we found an over-representation of people of European extraction among Venezuelan patients with CLL, suggesting the possibility of a higher frequency of susceptibility genes for CLL in Europeans in comparison with Latin American mestizos.
Subject(s)
Biomarkers, Tumor/genetics , Complementarity Determining Regions/genetics , Immunoglobulin Heavy Chains/genetics , Immunoglobulin Variable Region/genetics , Leukemia, Lymphocytic, Chronic, B-Cell/ethnology , Leukemia, Lymphocytic, Chronic, B-Cell/genetics , White People/genetics , ADP-ribosyl Cyclase 1/metabolism , Adult , Aged , Aged, 80 and over , Biomarkers, Tumor/metabolism , Female , Flow Cytometry , Humans , Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis , Male , Membrane Glycoproteins/metabolism , Middle Aged , Mutation/genetics , Neoplasm Staging , Prognosis , Venezuela/ethnology , ZAP-70 Protein-Tyrosine Kinase/metabolismABSTRACT
Lactate dehydrogenase (LDH) consists of five isoenzymes and is an important prognostic factor in non-Hodgkins lymphoma (NHL) patients. Our objective was to study the pattern of LDH isoenzymes in patients with NHL and its correlation with clinical pathological and biological tumor markers. We evaluated 67 newly diagnosed NHL patients clinically and histologically confirmed, previously untreated, HIV-negative and free from other diseases, during the period 1999-2004, the average follow-up time of 30 months (range 3-48), median age of 55 years (range 18-79), the International Prognostic Index (IPI ) 60 (90%) of low risk and 7 (10%) of high risk. Serum and whole blood samples were collected for the determination of LDH, LDH isoenzymes, enzymes (AST, ALT, phosphatase alkaline), Beta 2 Microglobulin, CA125, and IL-6, sRáIL-2, C Reactive protein, serum albumin and ESR. Serum samples were processed from healthy controls in order to set reference values of LDH isoenzymes. Serum levels of LDH and absolute values of LDH isoenzymes were significantly higher in patients compared to controls (p<0.001). Frequencies of high absolute values of LDH1, LDH2, LDH3, LDH4 and LDH5 isoenzymes were significantly elevated in 25 (37%), 29 (43%), 32 (48%), 20 (39%) and 11 (16%) of cases, respectively. LDH1 activity associated and correlated with adverse clinical pathological, biological factors and high risk IPI, suggets that it is an indicator of cell turnover and disease activity. LDH2 changes reflected its association and correlation with clinical pathological and biological factors which are indicators of disease progression, tumor proliferative activity, adverse IPI and the patients response to the illness. LDH3 was elevated with greater frecuency and its activity was associated with clinical pathological and biological prognostic factors reflecting the patients response against the tumor, as well as inflammatory activity and disease extension...
La enzima lactato deshidrogenasa (LDH) está conformada por cinco isoenzimas y es un importante factor pronóstico en pacientes con Linfoma No Hodgkin (LNH). Nuestro objetivo fue estudiar el patrón de las isoenzimas de LDH en pacientes con LNH y su correlación con marcadores tumorales clínico-patológicos y biológicos. Se evaluaron 67 pacientes de primera consulta con diagnóstico de LNH confirmados clínica e histopatológicamente, sin tratamientos previo, VHI negativo y sin presentar otras enfermedades, durante el período 1999-2004, siendo el tiempo promedio de seguimiento de 30 meses (rango 3-48 meses), edad promedio 55 años (rango 18-79), Índice Pronóstico Internacional (IPI) 60 (90 por ciento) bajo riesgo y 7 (10 por ciento) alto riesgo. Se recolectaron muestras de sangre, para la obtención de suero y sangre total para la determinación de LDH, Isoenzimas de LDH, enzimas (AST, ALT, fosfatasa alcalina), Beta 2 Microglobulina, CA125,IL-6,sRIL-2, Proteína C Reactiva, Albúmina sérica y VSG. Se procesaron muestras de suero de controles sanos para establecer los valores de referencia de las isoenzimas de LDH. Los nieveles séricos de la LDH y los valores absolutos de las isoenzimas de LDH fueron significativamente superiores en los pacientes respecto al grupo control (p<0,001). Las frecuencias de las isoenzimas LDH1, LDH2, LDH3, LDH4 y LDH5 resultaron con niveles absolutos significativamente elevados en 25 (37 por ciento), 29 (43 por ciento), 32 (48 por ciento), 20 (39 por ciento) y 11 (16 por ciento) de los casos respectivamente. La asociación y correlación de la actividad de LDH1 con los factores clínico-patológicos adversos, IPI alto riesgo y marcadores biológicos alterados , sugieren su expresión como un indicador de recambio celular y actividad de la enfermedad. Los cambios en el patrón de la LDH2 reflejaron su asociación y correlación con factores clínico-patológico y biológicos indicadores de la pregresión de la enfermedad...
Subject(s)
Humans , Male , Adult , Female , Middle Aged , Isoenzymes/analysis , Lymphoma, Non-Hodgkin/blood , Biomarkers, Tumor/analysis , Hematology , Medical OncologyABSTRACT
Patients undergoing percutaneous coronary intervention procedures, as in patients with coronary disease, should receive treatment indefinitely with acetylsalicylic acid and clopidogrel. New brands of clopidogrel have been developed at lower costs, for helping to avoid premature suspension of antiplatelet therapy, as Cravid Leti Laboratories clopidogrel. Its effectiveness and safety must be compared with Plavix international standard. A prospective, comparative, cross-over, and randomized study was conducted in healthy volunteers. Each group received 1 tablet of Clopidogrel Leti or Clopidogrel Sanofi, 75 mg in a single dose daily for 7 days, followed by 7-day washout period before administration of second treatment. Platelet aggregation was measured at the start of each period and at 7 days of treatment through optical aggregometry, using an optical aggregometer 490-2D Chrono-Log, with a self-calibration system working with platelet-rich plasma with readings 0%-100% of light transmission. An important decrease of platelet aggregation was observed in both groups at 7 days of treatment of more than 50%, independent of adenosine diphosphate reactive (Helena and Chrono-Log) used for aggregation (P < 0.05). The relationship between the mean and 90% confidence interval ratio obtained with the 2 different adenosine diphosphate brands were between 80% and 125%, therefore, it can be considered that both brands are bioequivalent and perfectly exchangeable.
Subject(s)
Platelet Aggregation Inhibitors/pharmacokinetics , Ticlopidine/analogs & derivatives , Adolescent , Adult , Clopidogrel , Cross-Over Studies , Humans , Middle Aged , Platelet Aggregation/drug effects , Platelet Aggregation Inhibitors/administration & dosage , Platelet Aggregation Inhibitors/pharmacology , Prospective Studies , Tablets , Therapeutic Equivalency , Ticlopidine/administration & dosage , Ticlopidine/pharmacokinetics , Ticlopidine/pharmacology , Young AdultABSTRACT
El CA 125 ha sido considerado un nuevo marcador pronóstico en linfoma No Hodgkin (LNH). El objetivo del trabajo consistió en evaluar la significancia pronostica de los niveles del CA 125 en pacientes con LNH, asociación y correlación con factores clínicos patológicos, biológicos y sobrevida. Se procesaron muestras de suero de 67 pacientes con diagnóstico de LNH, de primera consulta, pretratamiento, VIH negativo y sin presentar otras enfermedades, edad promedio 55 años (rango 18-79 años), LNH agresivos 49 (73%) y LNH indolentes 18 (27%), IPI 60 (90%) de bajo riesgo y 7 (10%) de alto riesgo, tiempo promedio de seguimiento 30 meses (rango 3-48 meses). CA 125, B2M e IL-6 se determinaron por inmunoensayos enzimáticos y Proteína C Reactiva, Albúmina sérica, LDH, AST, ALT y fosfatasa alcalina por métodos de aglutinación directa, colorimétrico y cinético, respectivamente. 16 (24%) de los pacientes expresaron niveles elevados de CA 125 (>35u/ml) (p<0,001). Asociación significativa (p≤0,05) de CA 125 (35u/ml) con estadío clínico (EC) III-IV, enfermedad voluminosa (EV)>10cm, síntomas B (SB), enfermedad abdominal (EAb) y níveles elevados de LDH y B2M. Correlación significativa y directa con EC, EV, SB, LDH, B2M y AST (p≤0,05) y correlación inversa con albúmina sérica (p=0,02). El análisis univariado mostró una significativa disminución de la sobrevida global en los pacientes con LNH agresivos y niveles elevados de CA 125(>35u/ml) (p=0,03), LDH (p=0,048) y B2M(p=0,02). Según el análisis multivariado, Ca 125 perdió su significancia, LDH (p=0,04) y B2M (p=0,003) mantuvieron su valor pronóstico independiente. Los resultados del presente trabajo sugieren la utilidad pronóstica de los niveles séricos del CA 125, siendo recomendable su inclusión en la evaluación clínica inicial e los pacienten con LNH.
CA 125 has been considered a new prognostic marker in Non-Hodgkin lymphoma (NHL). The objetive of this study was to determine the prognostic significance of CA 125 levels in NHL patients, the association and correlation with clinical pathological and biological factos and survival. We processed 67 serum samples from newly diagnosed NHL patients previously untreated, HIV-negative and free from other diseases, mean age 55 years (range 18-79 Years), agressive NHL 49 (73%) and indolent NHL 18 (27%), IPI: 60 (90%) of low risk and 7 (10%) high risk, the average time of follow up was 30 months (range 3-48 months). CA 125, B2M and IL-6 were determined by enzyme immunoassay methods. C-reactive protein, serum albumin, LDH, AST, ALT and alkaline phosphatase were determined by direct agglutination, colorimetric and kinetic methods, respectively. Elevted levels of CA 125 (>35u/ml) were expressed in 16 (24%) of the patients (p<0.001). CA 125 levels (>35u/ml) were significantly (p≥0.05) associated with the follwing factors: clinicals stage (CS) III-IV, bulky disease (BD)>10 cm, B symptoms (BS), abdominal disease (ABD) and elevated levels of LDH and B2M. There was a significant and direct correlation (p≤0.05) with CS, BD, BS, LDH, B2M and AST and inversely with serum albumin (p=0,02). Univariate analysis showed a significant decreased of overall survival in patients with aggressive NHL with elevated levels of CA 125 (p<0.048), LDH (p=0.048) and B2M (p=0,02). In multivariate analysis Ca 125 lost its prognostic significance, LDH (p=0.04) and B2M (p=0.003) remained their independent prognostic value. The results of this study suggest the prognostic value of serum levels of CA 125, being recommended for inclusion in the initial clinical evaluation of patients with NHI.
Subject(s)
Humans , Male , Adult , Female , Middle Aged , /analysis , /blood , Lymphoma, Non-Hodgkin/diagnosis , Lymphoma, Non-Hodgkin/chemistry , Lymphoma, Non-Hodgkin/blood , Blood Chemical Analysis , Hematology , Medical Oncology , BiomarkersABSTRACT
Hemopoietic progenitor cells give rise to all cellular elements of the blood and are of importance as a potential source of cells used for correction of various pathological conditions. The main objective of this study was to identify and quantitative hemopoietic progenitor cell in antenatal fetal blood, in cord blood at the time of delivery and in adult blood, using monoclonal antibodies to surface markers and flow cytometry. CD34+ cells, most of them probably representing progenitor cells, were detected in prenatal fetal blood as early as the 17th week of gestation. The proportion of these cells showed a tendency to decrease as the pregnancy progressed. Within the population of CD34+ cells, a relatively low proportion (less than 1 percent) were negative for the surface marker CD33 or HLA-Dr, indicating a population of primitive stem cells, i.e., progenitor cells no committed to a specific lineage. On the contrary, another group coexpressed CD33 or HLA-Dr, being more mature progenitor cells already committed to differentiate along a specific lineage. The percentage of CD34+ obtained in blood of adult patients after mobilization with chemotherapeutic agents and growth factors showed an average value of 2.7± 3.1 percent. The percentage of CD34+ in the apheresis products of various patients varied from 0.58 to 1.48. In some cases the cells were reinfused in the patient with good results. Our findings are in agreement with previous studies suggesting that CD34+ stem cells is a heterogeneous population, with each subset having variable degree o commitment to differentiate toward a specific cell lineage.
As células progenitoras hematopoéticas são as responsáveis pela produção de todos os elementos do sangue e são as potenciais fontes de células usadas para o tratamento de várias condições patológicas. O principal objetivo deste trabalho foi identificar e quantificar as células progenitoras hematopoiéticas no sangue fetal do período pré-natal, no sangue de cordão umbilical no momento do parto e no sangue do adulto, usando anticorpos monoclonais para marcadores de superfície e citometria de fluxo. As células CD34+ na maioria das vezes representam células progenitoras e foram detectadas no sangue fetal pré-natal tão precoce como na 17ª semana de gestação. A proporção destas células mostrou a tendência de diminuir durante a progressão da gestação. Dentro da população de células CD34+, uma proporção relativamente pequena (menos de 1 por cento) foi negativa para os marcadores de superfície CD33 ou HLA-Dr, indicando uma população de células primitivas, isto é, células progenitoras não comissionadas com uma linhagem específica. Ao contrário, outro grupo co-expressa CD33 ou HLA-Dr, sendo progenitores celulares mais maduros já comprometidos com linhagens específicas. A porcentagem de CD34+ obtida no sangue de adultos após mobilização com agentes quimioterápicos e fator de crescimento mostrou uma média de 2.7+/-3.1 por cento. 0 por cento de CD34+ no produto aferético de vários pacientes variou de 0.58 a 1.48. Em alguns casos as células foram infundidas nos pacientes com bons resultados. Nossos achados estão de acordo com estudos prévios sugerindo que células CD34+ sejam uma população heterogênea com cada subgrupo apresentando graus de comprometimento com diferentes linhagens específicas.
Subject(s)
Humans , Blood Component Removal , Fetal Blood , Flow Cytometry , Hematopoietic Stem Cell Mobilization , Hematopoietic Stem CellsABSTRACT
We have studied some biophysical properties of the fibrin network during the normal state of pregnancy and in patients with recurrent miscarriage (RM), in the first trimester of pregnancy. The fibrin polymerization process, followed by turbidity, showed that the rate of fibrin monomer assembly and the final turbidity was increased in the pregnant group (normal and with history of RM) compared to non-pregnant women (normal and RM), which is consistent with the increased fibrinogen concentration during pregnancy. No changes were observed in the Darcy constant (Ks) of RM clots, pregnant or not; however, in pregnant control subjects the Ks increased (p = 0.03). The fibrin lysis rate was increased in pregnant women compared to non-pregnant, being faster in women with RM. The rheological properties of the fibrin network in the non-pregnant group (control and RM patients) were similar; in the pregnant state, the fibrin network of the control group was 1.3 times stiffer compared to the control non-pregnant women, and almost unchanged in RM patients. In this study we have found changes in the clot structure that seem to be related to normal pregnancy and an increased rate of the fibrin lysis process in the RM patients, which may have clinical relevance.
Subject(s)
Abortion, Habitual/etiology , Fibrin/metabolism , Fibrinolysis , Pregnancy Complications, Hematologic/blood , Pregnancy Trimester, First , Abortion, Habitual/blood , Blood Coagulation Tests , Female , Fibrin/ultrastructure , Hemostasis , Humans , Microscopy, Electron, Scanning , Nephelometry and Turbidimetry , Pregnancy , Thrombelastography , Time Factors , VenezuelaABSTRACT
El receptor a soluble de la interleuquina 2 (sRaIL-2) ha sido considerado un marcador pronóstico en pacientes con linfoma No Hodgkin (LNH). El objetivo del trabajo consistió en determinar la significancia de los niveles del sRaIL-2 en pacientes con LNH, su correlación con factores clínico patológicos, biológicos y su valor pronóstico. Se procesaron muestras de suero de 43 nuevos casos de pacientes con LNH, pretratamiento, edades comprendidas entre 25-84 años, mediana 55 años, 33 (77%) LNH agresivos y 10 (23%) LNH indolentes. Según el Índice Pronóstico Internacional (IPI), 37 (86%) de bajo riesgo y 6 (14%) de alto riesgo, siendo el tiempo promedio de seguimiento de la enfermedad 30 meses (rango 3-48 meses). Se recolectaron 20 muestras de suero de controles sanos, donantes de banco de sangre, para determinar el valor de referencia. Las muestras de pacientes y controles se congelaron a -70ºC hasta su procesamiento. El sRaIL-2 se determinó por un inmunoensayo enzimático adsorbente (ELISA), sensibilidad 10 pg/ml y se consideraron elevados los niveles >2000 pg/ml. Los marcadores biológicos: Beta 2 microglobulina (B2M), Proteína C Reactiva (PCR), Velocidad de sedimentación globular (VSG), Albúmina sérica, Lactato deshidrogenasa (LDH), Aspartato amino transferasa (AST), Alanino amino transferasa (ALT) y Fosfatasa alcalina (ALP), se determinaron por métodos de inmunoensayo enzimático sobre micropartículas (MEIA), aglutinación directa, Wintrobe, colorimétrico y cinético, respectivamente. Los niveles séricos del sRaIL-2 en pacientes con LNH fueron significativamente superiores al del grupo control (p <0,001) y 26 (60%) de los pacientes expresaron niveles elevados del sRaIL-2 (p< 0,001). Se detectaron niveles del sRaIL-2 significativamente incrementados asociados a pacientes con estadio clínico (EC) III-IV (p= 0,02), síntomas B (p= 0,04), valores elevados de B2M (p= 0,01) y PCR (p= 0,05)...
Soluble Interleukin2 a receptor (sIL-2aR) has been considered as a prognostic marker in Non-Hodgkins lymphoma (NHL) patients. The aim of this study was to assess the significance of sIL-2aR levels in the pre-treatment serum of NHL patients, as well as its correlation with the clinical-pathological and biological factors and its prognostic value. Forthy-three serum samples from newly diagnosed NHL patients were processed before starting the treatment. The median age was 55 years old (range 25-84 years), 33 cases (77%) were classified as aggressive lymphomas and 10 cases (23%) as indolent lymphomas. According to the International Prognostic Index (IPI), 37 cases (87%) were classified as high risk group and 6 cases (14%) as low risk group. The average time of followups was 30 months (range 3-48 months). 20 healthy control samples from blood bank donors were collected for establishing the reference value. All patients and control samples were kept at -70ºC until processed. The sIL-2aR levels were determined by applying an enzyme-linked immunosorbent assay (ELISA), sensitivity 10 pg/ml. Values were considered elevated when they exceeded 2000 pg/ml. The biological markers: Beta 2 microglobulin (B2M), C-Reactive Protein (CRP), erythrocyte sedimentation rate (ESR), serum albumin, serum lactate dehydrogenase (LDH), aspartate amino transaminase (AST), alanine amino transaminase (ALT), alkaline phosphatase (ALP), were determined by the methods of microparticle enzyme immunoassay (MEIA), direct agglutination, Wintrobe, colorimetric and kinetic respectively. The sIL-2aR serum levels in the NHL patients were significantly higher than the control group (p< 0.001) and 26 (60%) of the patients expressed values higher than 2000 pg/ml (p<0.001). Significantly elevated serum levels of sIL-2aR were associated with clinical stage (CS) III-IV (p= 0.02), B symptoms (p= 0.04), elevated levels of B2M (p=0.01) and CRP (p=0.05)...
Subject(s)
Humans , Male , Female , Lymphoma, Non-Hodgkin/complications , Lymphoma, Non-Hodgkin/diagnosis , Biomarkers/analysis , Prognosis , /therapeutic use , Blood Chemical AnalysisABSTRACT
Determinar la eficacia de un régimen híbrido de siete drogas en pacientes con enfermedad de Hodgkin en estadios avanzados y en estadios tempranos II-B con factores pronósticos desfavorables. Entre enero de 1988 y diciembre de 1998 fueron tratados 126 pacientes, (edad promedio: 33 años), y un seguimiento promedio de 5,6 años. Los estadios clínicos fueron II-B en 42 pacientes (33 por ciento), estadio III en 55 pacientes (44 por ciento), y estadio IV en 29 pacientes (23 por ciento). Los factores pronósticos (FP) evaluados fueron: edad> 45 años, sexo masculino, síntomas B, MM > 30 por ciento, EC IV y VSG> 50 mm 1° hora. Todos recibieron 6 ciclos de quimioterapia (MOPP/ABV). Ciento siete pacientes (84 por ciento) obtuvieron remisión completa; remisión parcial en 16 (13 por ciento); progresaron al final del tratamiento en 3 (3 por ciento); y 13/107 (12 por ciento) recayeron. La tasa de sobrevida total y la tasa de sobrevida libre de falla de todo el grupo a los 10 años fueron de 76 por ciento y 62 por ciento, respectivamente. La toxicidad hematológica aguda incluyó neutropenia, trombocitopenia y anemia. La toxicidad tardía fue de nódulo tiroideo de 4 por ciento leucemia mieloide aguda en 3 por ciento afectación cardíaca en 1,6 por ciento y tumor sólido (esófago) en 0,8 por ciento. Las tasas de incidencia fueron altas para segundo tumor, cáncer de esófago y leucemia secundaria. Por lo que, a pesar de los resultados obtenidos debimos descontinuar el uso de esta combinación