Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 43
Filter
1.
J. oral res. (Impresa) ; 12(1): 119-126, abr. 4, 2023. ilus
Article in English | LILACS | ID: biblio-1451421

ABSTRACT

Introduction: The present report describes the case of a 12-year-old patient with 17-year follow-up who was previously diagnosed with Papillon-Lefèvre Syndrome (PLS), which is a rare autosomal recessive irregularity in the cathepsin C gene (CTSC) characterized by palmoplantar hyperkeratosis and premature loss of primary and permanent teeth. Case Report: A specific mutation in the c.203 T > G gene inducing loss of function leading to PLS was detected, as was a mutation in the HLA-DRB1*11 allele, which is associated with this syndrome. There is no consanguinity of the parents, and the siblings are entirely healthy. Early identification of the main characteristics of this syndrome is imperative. Accurate diagnosis by genetic analysis allows differential diagnoses and timely comprehensive dental treatment. Conclusions: Additionally, it allows consultation with a dermatologist to maintain or improve the quality of life of patients with this condition due to progressive worsening and severity of the main physical manifestations. Keywords: Papillon-Lefevre Disease; Keratoderma, Palmo-plantar; Cathepsin C; Periodontitis; Skin Diseases, Genetic; Case reports


Introducción: El presente reporte describe el caso de un paciente de 12 años de edad con 17 años de seguimiento a quien previamente se le diagnosticó Síndrome de Papillon-Lefèvre (PLS), el cual es una rara irregularidad autosómica recesiva en el gen de la catepsina C (CTSC) caracterizada por hiperqueratosis palmoplantar y pérdida prematura de dientes primarios y permanentes. Reporte de Caso: Se detectó una mutación específica en el gen c.203 T > G que induce pérdida de función que conduce a PLS, así como una mutación en el alelo HLA-DRB1*11, que se asocia a este síndrome. No presenta consanguinidad de los padres, padres y hermanos totalmente sanos. La identificación temprana de las principales características de este síndrome es imperativa. El diagnóstico certero por análisis genético permite diagnósticos diferenciales y tratamientos odontológicos integrales oportunos. Conclusiones: Adicionalmente, permite la consulta con un dermatólogo para mantener o mejorar la calidad de vida de los pacientes con esta condición debido al progresivo empeoramiento y severidad de las principales manifestaciones físicas.


Subject(s)
Humans , Male , Child , Papillon-Lefevre Disease/diagnostic imaging , Keratoderma, Palmoplantar , Cathepsin C/genetics , Papillon-Lefevre Disease/therapy
2.
Rev. medica electron ; 44(2)abr. 2022.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1409732

ABSTRACT

RESUMEN Introducción: el cáncer de pulmón representa en el mundo la primera causa de muerte oncológica. La tomografía computarizada es el medio diagnóstico más utilizado para clasificar esta enfermedad por estadios. Objetivo: determinar la eficacia de la tomografía computarizada en la evaluación de la pseudoprogresión de la enfermedad en pacientes con cáncer de pulmón de células no pequeñas, tratados con inmunoterapia cubana. Materiales y métodos: se realizó un estudio de evaluación, longitudinal, retrospectivo, analítico, en pacientes con cáncer de pulmón de células no pequeñas en estadio avanzado, tratados con inmunoterapia activa cubana, después de la primera línea de tratamiento con quimioterapia o quimiorradioterapia, entre el 1 de enero de 2013 y el 31 de diciembre de 2017. El universo lo constituyeron 91 pacientes tratados con Racotumomab y CIMAvax-EGF. Los datos se obtuvieron de las historias clínicas individuales, se incorporaron en una base de datos en Excel y se analizaron estadísticamente con el paquete SPSS 23. Resultados: del total de pacientes, 28 recibieron la vacuna Racotumomab y 63 la CIMAvax-EGF: pseudoprogresó el 12,5 % de los tratados con Racotumomab y el 28 % de los que lo fueron con CIMAvax-EGF. Se observó que la mayor supervivencia fue en los pseudoprogresores. Conclusiones: es eficaz el estudio tomográfico en la evaluación de respuesta de la pseudoprogresión de la enfermedad en pacientes con cáncer de pulmón de células no pequeñas, tratados con inmunoterapia cubana.


ABSTRACT Introduction: lung cancer represents the first cause of oncological death in the world. Computed tomography is the most used diagnostic mean to classify the disease by stages. Objective: to determine the efficacy of computed tomography in the evaluation of the disease pseudo-progression in patients with non-small cells lung cancer, treated with Cuban immunotherapy. Materials and methods: a longitudinal, retrospective, analytical study was conducted in patients with non-small cells lung cancer in advanced stage, treated with Cuban active immunotherapy after the first line of treatment with chemotherapy and chemoradiotherapy, between January 1, 2013 and December 31, 2017. The universe were 91 patients treated with Racotumomab and CIMAvax-EGF. Data were collected from personal clinical records, incorporated in an Excel database and statistically analyzed with the SPSS 23 package. Results: 28 patients from the total received the Racotumomab vaccine and 63 received the CIMAvax-ECG vaccine. 12.5 % of those treated with Racotumomab and 28 % of those treated with CIMAvax-ECG pseudo progressed. The greatest survival was found in pseudo progressors. Conclusions: the computed tomographic studio is efficacious in evaluating the response of the disease pseudo progression in patients with non-small cells lung cancer, treated with Cuban immunotherapy.

3.
PeerJ ; 9: e10694, 2021.
Article in English | MEDLINE | ID: mdl-33665004

ABSTRACT

Shrimp fisheries are among the most important fisheries worldwide, and shrimp culture has increased considerably in recent years. Most current studies on reproduction-related genes have been conducted on cultured shrimp. However, gene expression is intimately linked to physiological and environmental conditions, and therefore an organism's growth environment has a great influence on reproduction. Thus, gene expression profiling, should be applied in fisheries studies. Here, we identified the expression patterns of 76 reproduction-related genes in P. vannamei via the analysis of pooled transcriptomes from a time-series experiment encompassing a full circadian cycle. The expression patterns of genes associated both directly (Vtg, ODP, and ProR) and indirectly (FAMet, CruA1, and CruC1) with reproduction were evaluated, as these genes could be used as molecular markers of previtellogenic and vitellogenic maturation stages. The evaluated genes were prominently upregulated during vitellogenic stages, with specific expression patterns depending on the organism's environment, diet, and season. Vtg, ProR, ODP, and FaMet could serve as molecular markers for both wild and cultured organisms.

4.
BMC Infect Dis ; 21(1): 204, 2021 Feb 23.
Article in English | MEDLINE | ID: mdl-33622263

ABSTRACT

BACKGROUND: Melioidosis is an infectious disease caused by Burkholderia pseudomallei. In Mexico, the disease is rarely diagnosed in humans and there is no evidence of simultaneous environmental isolation of the pathogen. Here, we describe clinical profiles of fatal cases of melioidosis in two children, in a region without history of that disease. CASE PRESENTATION: About 48 h before onset of symptoms, patients swam in a natural body of water, and thereafter they rapidly developed fatal septicemic illness. Upon necropsy, samples from liver, spleen, lung, cerebrospinal fluid, and bronchial aspirate tissues contained Burkholderia pseudomallei. Environmental samples collected from the locations where the children swam also contained B. pseudomallei. All the clinical and environmental strains showed the same BOX-PCR pattern, suggesting that infection originated from the area where the patients were swimming. CONCLUSIONS: The identification of B. pseudomallei confirmed that melioidosis disease exists in Sonora, Mexico. The presence of B. pseudomallei in the environment may suggest endemicity of the pathogen in the region. This study highlights the importance of strengthening laboratory capacity to prevent and control future melioidosis cases.


Subject(s)
Melioidosis/complications , Pneumonia, Bacterial/etiology , Adolescent , Burkholderia pseudomallei/isolation & purification , Child , Fatal Outcome , Female , Humans , Male , Melioidosis/diagnosis , Melioidosis/pathology , Melioidosis/physiopathology , Mexico , Pneumonia, Bacterial/diagnosis , Pneumonia, Bacterial/pathology , Pneumonia, Bacterial/physiopathology , Sepsis/microbiology , Swimming
5.
Rev. medica electron ; 43(1): 2795-2807, tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1156776

ABSTRACT

RESUMEN Introducción: el cáncer de pulmón de células no pequeñas en estadios avanzados tiene una alta incidencia y mortalidad. Los tratamientos que se emplean son la quimioterapia, la radioterapia, las terapias dirigidas y la inmunoterapia. Es preferible que los tratamientos se realicen en el marco de ensayos clínicos. Tiene una precaria supervivencia a los cinco años del diagnóstico. Objetivo: determinar la supervivencia global de los pacientes con cáncer de pulmón de células no pequeñas, en estadios avanzados. Materiales y métodos: estudio descriptivo, retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón de células no pequeñas, en estadios avanzados. De un universo de 463 pacientes atendidos en el Servicio de Oncología Provincial de Matanzas, se conformó una muestra de 348. Período comprendido desde enero del 2013 a diciembre del 2016. Las variables estudiadas se tomaron de las historias clínicas y la base de datos nacional de fallecidos por cáncer de pulmón. Resultados: la mayoría de los pacientes se diagnosticaron en etapa IV (71,69 %), la modalidad de tratamiento más utilizada fue la quimioterapia (61,2 %). Los fármacos más empleados fueron las sales de platino en el78,73 %. La supervivencia global en la etapa IV fue de 1,23 % a cinco años. La modalidad de tratamiento de mayor supervivencia fue la inmunoterapia, con 3,33 % y la supervivencia global fue de 2 %. Conclusiones: predominó la etapa IV de la enfermedad. La quimioterapia a base de sales de platino como esquema de tratamiento de primera línea y la inmunoterapia como modalidad de tratamiento reportaron mayor supervivencia global, aunque esta fue precaria (AU).


ABSTRACT Introduction: non-small cell lung cancer in advanced stages shows a high incidence and mortality. The treatments used against it are chemotherapy, radiotherapy, directed therapies and immunotherapy. It is better to perform the treatments in the context of clinical trials. It has a precarious survival at the fifth year after diagnosis. Objective: to determine the global survival of patients with non-small cell lung cancer in advanced stages. Materials and methods: descriptive, retrospective study in patients with cyto-histological diagnosis of non-small lung cancer in advanced stages. A sample of 348 patients was formed from the universe of 463 patients who attended the Provincial Service of Oncology in the period from January 2013 to December 2016. The studied variables were taken from the clinical records and the national database of deceased due to lung cancer. Results: most of patients were diagnosed at the stage IV (71.69 %); the most used treatment modality was chemotherapy (61.2). The most used drugs were platinum salts in 78.73 %. The global survival at the IV stage was 1.23 at five years. The treatment modality of greater survival was immunotherapy, with 3.33 % and the global survival was 2 %. Conclusions: the disease's stage IV predominated. The platinum salts-based chemotherapy as the first line treatment scheme and immunotherapy as treatment modality provided higher global survival, although it was precarious (AU).


Subject(s)
Humans , Carcinoma, Non-Small-Cell Lung/mortality , Survivorship , Medical Oncology , Epidemiology, Descriptive , Retrospective Studies , Carcinoma, Non-Small-Cell Lung/drug therapy
6.
Rev. medica electron ; 41(5): 1205-1216, sept.-oct. 2019.
Article in Spanish | LILACS, CUMED | ID: biblio-1094123

ABSTRACT

RESUMEN El hombre con su sabiduría e inteligencia ha sido capaz de crear medios de enseñanza, que no se han quedado relegados en el tiempo, los ha puesto al servicio de la educación para el logro de la formación integral de la personalidad. El nuevo siglo se ha caracterizado por un aumento del volumen de conocimientos en cualquier rama de la ciencia, necesita del trabajo independiente en la formación del estudiante, en cualquier nivel de enseñanza. El propósito orientar a los profesores un grupo de requerimientos didácticos para estructurar guías de estudio en función del trabajo independiente para estudiantes de las Ciencias Médicas. Se realizó un estudio documental del tema, mediante búsquedas en las bases de datos SciELO Cuba, SciELO Regional, Pubmed, de todo lo relacionado con el tema en el período 2017-2018. Se define como guía didáctica al instrumento digital o impreso que constituye un recurso para el aprendizaje a través del cual se concreta la acción del profesor y los estudiantes dentro del proceso docente, de forma planificada y organizada. Se declaran requerimientos didácticas para el desarrollo del proceso de enseñanza aprendizaje que complementan la forma de asimilación de los conocimientos. Las guías didácticas en función del trabajo independiente constituyen recursos que tienen el propósito de orientar metodológicamente al estudiante en su actividad independiente, al mismo tiempo que sirvan de apoyo a la dinámica del proceso docente, al guiar al alumno en su aprendizaje, al favorecer la autonomía, la relación de los conocimientos, habilidades y valores, así como la participación comunitaria como escenario para realizar el trabajo independiente (AU).


SUMMARY The man, with his wisdom and intelligence, has been able to create teaching aids that have not been forgotten through the times; they have been put in to service of teaching to achieve the comprehensive training of the personality. The new century, characterized by the increase of knowledge volume in every branch of the sciences, needs the independent work for training students of all education levels. The purpose is providing the teachers a group of didactic requirements to prepare study guidelines for the independent work of Medical Sciences students. A documental study of the theme was carried out searching all publications on the theme published in Scielo Cuba, Scielo Regional, and Pubmed in the period 2017-2018. Didactic guideline is the digital or printed document used as a resource for learning, through which the performance of the teacher and the students is fulfilled in the teaching process, in an organized and planned way, and declares didactic requirements for the development of the teaching learning process complementing the assimilation of knowledge. Didactic guidelines in function of the independent work are resources having the purpose of methodologically orienting the student in its independent activity, serving at the same time as a support for the dynamic of the teaching process while guiding the student in its learning, favoring autonomy, the relation between knowledge, skills and values and also community participation as scenery for performing the independent work (AU).


Subject(s)
Humans , Teaching Materials , Professional Training , Study Guide , Students, Medical , Teaching , Guidelines as Topic , Lecture , Learning
7.
Rev. medica electron ; 41(2): 333-345, mar.-abr. 2019. tab
Article in Spanish | CUMED | ID: cum-75920

ABSTRACT

RESUMEN Introducción: la neoplasia de mama, constituye la segunda causa de mortalidad por cáncer en la mujer cubana. El conocimiento de los factores pronósticos de recaída es determinante para la toma de decisiones en el tratamiento. Objetivo: identificar los factores pronósticos de recidiva por cáncer de mama. Materiales y métodos: Se realizó un estudio observacional, analítico, retrospectivo. Participaron 264 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes", de la provincia Matanzas, desde el 1 de enero del 2010 hasta el 31 de diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo libre de enfermedad, estratificado por las variables seleccionadas y un análisis bivariado para estimar la relación entre la recaída y cada una de las variables. Los datos fueron cruzados en tablas de contingencia y se calculó el riesgo relativo y los intervalos de confianza del 95 %. Se utilizó el test Chi cuadrado. El efecto independiente de las variables seleccionadas en la recaída se verificó mediante el análisis multivariado de regresión de Cox. Resultados: durante el seguimiento, 64 pacientes presentaron recaída, para una incidencia acumulada de 24,2 %. El análisis multivariado demostró peor pronóstico en aquellas mujeres con infiltración de ganglios linfáticos axilares (RR=5.65; IC: 2.21-14.44) y grado histológico III (RR=3.44; IC 1.98-5.97). Conclusiones: se identificaron como factores pronósticos de recaída: el estatus ganglionar positivo y el grado histológico III. El conocimiento de estos factores repercute directamente en la supervivencia, y es decisivo para individualizar el tratamiento (AU).


ABSTRACT Introduction: breast neoplasm is the second cause of mortality in Cuban women. The knowledge of the recurrence prognostic factors is crucial for the treatment decision taking. Objective: to determine the recurrence prognostic factors due to breast cancer in this series. Material and methods: a retrospective, analytic, observational, cohort study was carried out; participated 264 women diagnosed with breast cancer in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas, from January 1st 2010 to December 31st 2015. The Kaplan-Meier method was used to determine disease-free time, stratified according to the chosen variables, and a bi-variate analysis to estimate the relation between recurrence and each of these variables. Data were crossed in contingency tables and the relative risk (RR) and their confidence intervals (CI) of 95 % were calculated for each of them. The Chi squared test was used to find the significant statistic association. The independent effect of the chosen variables in the recurrence was verified by means of the Cox regression multivariate analysis. Results: during the follow up, 64 patients had recurrence for an accumulated incidence of 24.2 %. The multivariate analysis by means of the Cox proportional risk model showed the worst prognosis in women with infiltration of the axillary lymph nodes (RR=5.65; CI: 2.21-14.44) and histological grade III (RR=3.44; CI 1.98-5.97). Conclusions: the positive gangliar status and histological grade III were identified as recurrence risk factors. Knowing these factors directly affects survival and is decisive to individualize the treatment (AU).


Subject(s)
Humans , Female , Prognosis , Recurrence , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Retrospective Studies , Analytical Epidemiology , Observational Study
8.
Rev. medica electron ; 41(2): 410-422, mar.-abr. 2019. tab, graf
Article in Spanish | CUMED | ID: cum-75909

ABSTRACT

RESUMEN Introducción: las metástasis cerebrales cuando aparecen en el curso de un cáncer de pulmón reportan una precaria supervivencia al paciente, los tratamientos incluyen la cirugía o radiocirurgía. La radioterapia holocraneal constituye el estándar cuando los tratamientos locales no son posibles. Se han reportado respuestas del cerebro a la quimioterapia a un nivel comparable al de la enfermedad extra craneal, por lo que la terapia sistémica es una opción razonable para los pacientes sin síntomas neurológicos, o con síntomas relativamente controlados. Objetivo: evaluar la supervivencia de los pacientes según esquemas de tratamientos recibidos. Materiales y métodos: se realizó un estudio descriptivo y retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón y metástasis cerebral, atendidos en la consulta externa del Centro Oncológico Provincial de Matanzas, en el período comprendido desde enero del 2013 a diciembre del 2016. Para obtener los datos de los tratamientos realizados, determinar fecha de fallecimiento o de última noticia del paciente se utilizaron las historias clínicas de los enfermos y las bases de datos del Servicio de Radioterapia del Centro. Resultados: el 86,5% de los pacientes recibieron tratamiento con quimioterapia de primera línea, el 76% radioterapia al cerebro y el 61,5% con nimotuzumab. Conclusiones: la aplicación de la quimioterapia, la radioterapia holocraneal y la inmunoterapia tuvieron un valor significativo, proporcionando un aumento de la supervivencia de los pacientes estudiados (AU).


ABSTRACT Introduction: brain metastasis report a precarious survival when they appear during the course of a lung cancer. The treatments include surgery or radiosurgery. Whole brain radiotherapy is the standard treatment when the local ones are not possible. There are reports of brain answer to chemotherapy at the level of extra brain diseases; therefore, systemic therapy is a reasonable option for the patients without neurological symptoms, or with relatively controlled symptoms. Objective: to assess the patients´ survival according to the schemes of the received treatments. Materials and methods: a retrospective descriptive study was carried out in patients with cytohistological diagnosis of lung cancer and brain metastasis, who attended the external consultation of the Provincial Oncological Center of Matanzas in the period from January 2013 to December 2016. The clinical records and databases of the Radiotherapy Service of the Center were used to obtain the data of the treatments carried out, the patients' date of dead or of the last information about them. Results: 86.5 % of the patients received treatment with front-line chemotherapy, 76 % brain radiotherapy, and 61.5 % with Nimotuzumab. Conclusions: the application of chemotherapy, whole brain radiotherapy and immunotherapy achieved great improvement, increasing the survival of the studied patients (AU).


Subject(s)
Humans , Lung Neoplasms/diagnosis , Lung Neoplasms/mortality , Lung Neoplasms/drug therapy , Lung Neoplasms/radiotherapy , Neoplasm Metastasis/diagnosis , Neoplasm Metastasis/drug therapy , Neoplasm Metastasis/radiotherapy , Epidemiology, Descriptive , Prospective Studies
9.
Rev. medica electron ; 41(2): 333-345, mar.-abr. 2019. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1004271

ABSTRACT

RESUMEN Introducción: la neoplasia de mama, constituye la segunda causa de mortalidad por cáncer en la mujer cubana. El conocimiento de los factores pronósticos de recaída es determinante para la toma de decisiones en el tratamiento. Objetivo: identificar los factores pronósticos de recidiva por cáncer de mama. Materiales y métodos: Se realizó un estudio observacional, analítico, retrospectivo. Participaron 264 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes", de la provincia Matanzas, desde el 1 de enero del 2010 hasta el 31 de diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo libre de enfermedad, estratificado por las variables seleccionadas y un análisis bivariado para estimar la relación entre la recaída y cada una de las variables. Los datos fueron cruzados en tablas de contingencia y se calculó el riesgo relativo y los intervalos de confianza del 95 %. Se utilizó el test Chi cuadrado. El efecto independiente de las variables seleccionadas en la recaída se verificó mediante el análisis multivariado de regresión de Cox. Resultados: durante el seguimiento, 64 pacientes presentaron recaída, para una incidencia acumulada de 24,2 %. El análisis multivariado demostró peor pronóstico en aquellas mujeres con infiltración de ganglios linfáticos axilares (RR=5.65; IC: 2.21-14.44) y grado histológico III (RR=3.44; IC 1.98-5.97). Conclusiones: se identificaron como factores pronósticos de recaída: el estatus ganglionar positivo y el grado histológico III. El conocimiento de estos factores repercute directamente en la supervivencia, y es decisivo para individualizar el tratamiento.


ABSTRACT Introduction: breast neoplasm is the second cause of mortality in Cuban women. The knowledge of the recurrence prognostic factors is crucial for the treatment decision taking. Objective: to determine the recurrence prognostic factors due to breast cancer in this series. Material and methods: a retrospective, analytic, observational, cohort study was carried out; participated 264 women diagnosed with breast cancer in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas, from January 1st 2010 to December 31st 2015. The Kaplan-Meier method was used to determine disease-free time, stratified according to the chosen variables, and a bi-variate analysis to estimate the relation between recurrence and each of these variables. Data were crossed in contingency tables and the relative risk (RR) and their confidence intervals (CI) of 95 % were calculated for each of them. The Chi squared test was used to find the significant statistic association. The independent effect of the chosen variables in the recurrence was verified by means of the Cox regression multivariate analysis. Results: during the follow up, 64 patients had recurrence for an accumulated incidence of 24.2 %. The multivariate analysis by means of the Cox proportional risk model showed the worst prognosis in women with infiltration of the axillary lymph nodes (RR=5.65; CI: 2.21-14.44) and histological grade III (RR=3.44; CI 1.98-5.97). Conclusions: the positive gangliar status and histological grade III were identified as recurrence risk factors. Knowing these factors directly affects survival and is decisive to individualize the treatment.


Subject(s)
Humans , Female , Prognosis , Recurrence , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Retrospective Studies , Analytical Epidemiology , Observational Study
10.
Rev. medica electron ; 41(2): 410-422, mar.-abr. 2019. tab, graf
Article in Spanish | CUMED, LILACS | ID: biblio-1004277

ABSTRACT

RESUMEN Introducción: las metástasis cerebrales cuando aparecen en el curso de un cáncer de pulmón reportan una precaria supervivencia al paciente, los tratamientos incluyen la cirugía o radiocirurgía. La radioterapia holocraneal constituye el estándar cuando los tratamientos locales no son posibles. Se han reportado respuestas del cerebro a la quimioterapia a un nivel comparable al de la enfermedad extra craneal, por lo que la terapia sistémica es una opción razonable para los pacientes sin síntomas neurológicos, o con síntomas relativamente controlados. Objetivo: evaluar la supervivencia de los pacientes según esquemas de tratamientos recibidos. Materiales y métodos: se realizó un estudio descriptivo y retrospectivo en pacientes con diagnóstico cito-histológico de cáncer de pulmón y metástasis cerebral, atendidos en la consulta externa del Centro Oncológico Provincial de Matanzas, en el período comprendido desde enero del 2013 a diciembre del 2016. Para obtener los datos de los tratamientos realizados, determinar fecha de fallecimiento o de última noticia del paciente se utilizaron las historias clínicas de los enfermos y las bases de datos del Servicio de Radioterapia del Centro. Resultados: el 86,5% de los pacientes recibieron tratamiento con quimioterapia de primera línea, el 76% radioterapia al cerebro y el 61,5% con nimotuzumab. Conclusiones: la aplicación de la quimioterapia, la radioterapia holocraneal y la inmunoterapia tuvieron un valor significativo, proporcionando un aumento de la supervivencia de los pacientes estudiados.


ABSTRACT Introduction: brain metastasis report a precarious survival when they appear during the course of a lung cancer. The treatments include surgery or radiosurgery. Whole brain radiotherapy is the standard treatment when the local ones are not possible. There are reports of brain answer to chemotherapy at the level of extra brain diseases; therefore, systemic therapy is a reasonable option for the patients without neurological symptoms, or with relatively controlled symptoms. Objective: to assess the patients´ survival according to the schemes of the received treatments. Materials and methods: a retrospective descriptive study was carried out in patients with cytohistological diagnosis of lung cancer and brain metastasis, who attended the external consultation of the Provincial Oncological Center of Matanzas in the period from January 2013 to December 2016. The clinical records and databases of the Radiotherapy Service of the Center were used to obtain the data of the treatments carried out, the patients' date of dead or of the last information about them. Results: 86.5 % of the patients received treatment with front-line chemotherapy, 76 % brain radiotherapy, and 61.5 % with Nimotuzumab. Conclusions: the application of chemotherapy, whole brain radiotherapy and immunotherapy achieved great improvement, increasing the survival of the studied patients.


Subject(s)
Humans , Lung Neoplasms/diagnosis , Lung Neoplasms/mortality , Lung Neoplasms/drug therapy , Lung Neoplasms/radiotherapy , Neoplasm Metastasis/diagnosis , Neoplasm Metastasis/drug therapy , Neoplasm Metastasis/radiotherapy , Epidemiology, Descriptive , Prospective Studies
11.
J Fish Biol ; 94(4): 671-679, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30847921

ABSTRACT

We assessed the spatial pattern of genetic structure of smooth hammerhead shark Sphyrna zygaena in 10 localities from the Northern Mexican Pacific. A total of 35 haplotypes were identified in 129 sequences of the mtDNA control region. The results showed slight but significant genetic structure among localities (ΦST = 0.044, P < 0.001). In addition, the localities with highest number of juveniles were genetically different (ΦST = 0.058, P < 0.024), which may be representative of nursery areas. The genetic differentiation pattern can be associated to female philopatry and preference for particular birthing sites. Finally, historical demography shows that S. zygaena populations present a recent demographic expansion that occurred during glacial events in the late Pleistocene to early Holocene.


Subject(s)
Genetic Variation , Homing Behavior , Sharks/physiology , Animals , DNA, Mitochondrial/chemistry , Female , Haplotypes , Mexico , Pacific Ocean , Phylogeography , Reproduction , Sharks/genetics
12.
Rev. medica electron ; 41(1): 104-116, ene.-feb. 2019. tab, graf
Article in Spanish | CUMED | ID: cum-75885

ABSTRACT

RESUMEN Introducción: el cáncer de mama constituye la segunda causa de mortalidad por cáncer en la mujer cubana, solo superado en el último trienio por las neoplasias de tráquea, bronquios y pulmones. Objetivo: describir algunas características epidemiológicas relacionadas con esta enfermedad. Materiales y métodos: se realizó un estudio epidemiológico observacional descriptivo y retrospectivo, en mujeres diagnosticadas con neoplasia de mama, en la consulta de mastología del hospital provincial "José Ramón López Tabranes" de la provincia de Matanzas, en el período comprendido entre el 1 de Enero del 2010 y el 31 de Diciembre del 2015. La muestra estuvo constituida por 288 mujeres y para el análisis de los datos se utilizaron frecuencias absolutas y porcientos. Resultados: predominaron las pacientes entre los 40 y 69 años (71.2 %), de color de piel blanca (65.6%) y sin antecedentes patológicos familiares de cáncer mamario (86.1%). Las variables clínico-patológicas estuvieron caracterizadas por un predominio de pacientes en estadio II (62.2 %), con estatus postmenopáusico al momento del diagnóstico (56.9 %) y con un tamaño del tumor entre 2 y 5 cm (77.4 %). El tipo histológico más frecuente fue el carcinoma ductal infiltrante, presentándose en el 85.7 % de la serie y en el 43.6 % de las enfermas se diagnosticó el tumor con grado histológico II. Es de señalar que el 61.1 % de las mujeres del estudio tenían afectación ganglionar al momento del diagnóstico. Conclusiones: se describen los principales factores sociodemográficos y clínico-patológicos, relacionados con esta enfermedad en el territorio, permitiendo realizar un cierre de campo para la ejecución de futuras investigaciones causales (AU).


ABSTRACT Introduction: breast cancer is the second cause of mortality in Cuban women, exceeded in the last three years only by tracheal, bronchial and lung neoplasms. Objective: to describe several epidemiological characteristics related to this disease. Material and method: a retrospective, observational-descriptive epidemiological study was carried out in women diagnosed with breast neoplasm in the Mastology consultation of the provincial hospital ¨Jose Ramon Lopez Tabrane¨, of Matanzas, in the period from January 1st 2010 to December 31st 2015. The sample was formed by 288 women, and for data analyses were used absolute frequencies and percents. Results: there was a predominance of white patients (65.6 %), aged 40-69 years (71.2 %), and without familiar antecedents of breast cancer (86.1 %). The clinical-pathological variables were characterized by the predominance of stage II patients (62.2 %), with menopausal status at the moment they were diagnosed (56.9 %), and with a tumor sized 2-5 cm (77.4 %). The most frequent histological kind was the duct infiltrative carcinoma that was present in 85.7 % of the series; histological grade II tumor was diagnosed in 43.6 % of the patients. it is important to say that 61.1 % of the studied women showed gangliar affectation at the moment of the diagnosis. Conclusions: the main socio-demographic and clinic-pathological factors related to this disease are described, allowing a closing to carry out future causal research (AU).


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology , Breast Neoplasms/epidemiology , Risk Factors , Epidemiologic Studies , Epidemiology, Descriptive , Retrospective Studies , Observational Study
13.
Rev. medica electron ; 41(1): 117-129, ene.-feb. 2019. graf
Article in Spanish | CUMED | ID: cum-75884

ABSTRACT

RESUMEN Introducción: en el último trienio la mortalidad por cáncer mamario en el sexo femenino en Cuba disminuyó ligeramente sus tasas, sin embargo no se han realizado estudios de supervivencia por esta enfermedad en la provincia Matanzas. Objetivo: evaluar el comportamiento del tiempo de supervivencia global a los 5 años en esta serie y valorar la sobrevida en función de variables seleccionadas. Materiales y métodos: se realizó un estudio observacional descriptivo, longitudinal y retrospectivo, en el que participaron 288 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes" de la provincia Matanzas, desde el 1 de Enero del 2010 hasta el 31 de Diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo de supervivencia global a los 5 años y en función de variables seleccionadas. La comparación de las diferentes curvas para las variables de exposición se realizó con la prueba de Rangos Logarítmicos (Log Rank). Se consideró estadísticamente significativo el valor del estadígrafo mayor de 1 y p < 0.05. Resultados: la supervivencia global a los 5 años fue de un 66 %. Se registran supervivencias muy por debajo de los estándares internacionales para las pacientes en estadios III (37 %) y IV (0). La supervivencia global disminuye de manera significativa en la medida en que se incrementan el número de ganglios afectados y el tamaño del tumor al momento del diagnóstico. Conclusiones: la supervivencia global a los 5 años resultó inferior a la registrada en la mayoría de los estudios internacionales consultados. Se muestra una disminución marcada de la sobrevida en pacientes con estadios clínicos avanzados de la enfermedad: (III y IV)(AU).


ABSTRACT Introduction: in the last three years, mortality rates due to breast cancer in the female sex in Cuba slightly decreased, but studies of this disease survival have not been carried out in the province of Matanzas. Objective: to evaluate the behavior of the global survival time of this series at the 5th year and to assess survival according to chosen variables. Material and method: a retrospective, longitudinal, observational descriptive study was carried out; 288 women diagnosed with breast cancer took part on it; they were diagnosed in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas during the period January 1st 2010- December 31st 2015. The Kaplan-Meier method was used to determine the global survival time at the 5th year according to chosen variables. The comparison of the different curves for the exposition variables was made using the Log Rank test. The test value higher than 1 and p < 0.05 was considered statistically significant. Results: global survival at the 5th year was 66 %. There are survival rates well below the international standards for the stage III (37 %) and stage IV (0) patients. Global survival significantly decreases insofar as the number of affected ganglia and the size of the tumor at the moment of the diagnosis increase. Conclusions: global survival at the 5th year was lower than the one recorded in most of the consulted international studies. There is a remarkable decrease of survival in patients with disease advanced clinical stages: III and IV(AU).


Subject(s)
Humans , Female , Breast Neoplasms/diagnosis , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Survival Analysis , Survival Rate , Epidemiology, Descriptive , Retrospective Studies , Longitudinal Studies , Kaplan-Meier Estimate , Observational Study
14.
Rev. medica electron ; 41(1): 117-129, ene.-feb. 2019. graf
Article in Spanish | LILACS, CUMED | ID: biblio-991330

ABSTRACT

RESUMEN Introducción: en el último trienio la mortalidad por cáncer mamario en el sexo femenino en Cuba disminuyó ligeramente sus tasas, sin embargo no se han realizado estudios de supervivencia por esta enfermedad en la provincia Matanzas. Objetivo: evaluar el comportamiento del tiempo de supervivencia global a los 5 años en esta serie y valorar la sobrevida en función de variables seleccionadas. Materiales y métodos: se realizó un estudio observacional descriptivo, longitudinal y retrospectivo, en el que participaron 288 mujeres diagnosticadas con cáncer de mama en la consulta de mastología del Hospital "José Ramón López Tabranes" de la provincia Matanzas, desde el 1 de Enero del 2010 hasta el 31 de Diciembre del 2015. Se utilizó el método de Kaplan Meier para determinar el tiempo de supervivencia global a los 5 años y en función de variables seleccionadas. La comparación de las diferentes curvas para las variables de exposición se realizó con la prueba de Rangos Logarítmicos (Log Rank). Se consideró estadísticamente significativo el valor del estadígrafo mayor de 1 y p < 0.05. Resultados: la supervivencia global a los 5 años fue de un 66 %. Se registran supervivencias muy por debajo de los estándares internacionales para las pacientes en estadios III (37 %) y IV (0). La supervivencia global disminuye de manera significativa en la medida en que se incrementan el número de ganglios afectados y el tamaño del tumor al momento del diagnóstico. Conclusiones: la supervivencia global a los 5 años resultó inferior a la registrada en la mayoría de los estudios internacionales consultados. Se muestra una disminución marcada de la sobrevida en pacientes con estadios clínicos avanzados de la enfermedad: (III y IV).


ABSTRACT Introduction: in the last three years, mortality rates due to breast cancer in the female sex in Cuba slightly decreased, but studies of this disease survival have not been carried out in the province of Matanzas. Objective: to evaluate the behavior of the global survival time of this series at the 5th year and to assess survival according to chosen variables. Material and method: a retrospective, longitudinal, observational descriptive study was carried out; 288 women diagnosed with breast cancer took part on it; they were diagnosed in the mastology consultation of the hospital "Jose Ramon Lopez Tabrane", province of Matanzas during the period January 1st 2010- December 31st 2015. The Kaplan-Meier method was used to determine the global survival time at the 5th year according to chosen variables. The comparison of the different curves for the exposition variables was made using the Log Rank test. The test value higher than 1 and p < 0.05 was considered statistically significant. Results: global survival at the 5th year was 66 %. There are survival rates well below the international standards for the stage III (37 %) and stage IV (0) patients. Global survival significantly decreases insofar as the number of affected ganglia and the size of the tumor at the moment of the diagnosis increase. Conclusions: global survival at the 5th year was lower than the one recorded in most of the consulted international studies. There is a remarkable decrease of survival in patients with disease advanced clinical stages: III and IV.


Subject(s)
Humans , Female , Breast Neoplasms/diagnosis , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Survival Analysis , Survival Rate , Epidemiology, Descriptive , Retrospective Studies , Longitudinal Studies , Kaplan-Meier Estimate , Observational Study
15.
Rev. medica electron ; 41(1): 104-116, ene.-feb. 2019. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-991329

ABSTRACT

RESUMEN Introducción: el cáncer de mama constituye la segunda causa de mortalidad por cáncer en la mujer cubana, solo superado en el último trienio por las neoplasias de tráquea, bronquios y pulmones. Objetivo: describir algunas características epidemiológicas relacionadas con esta enfermedad. Materiales y métodos: se realizó un estudio epidemiológico observacional descriptivo y retrospectivo, en mujeres diagnosticadas con neoplasia de mama, en la consulta de mastología del hospital provincial "José Ramón López Tabranes" de la provincia de Matanzas, en el período comprendido entre el 1 de Enero del 2010 y el 31 de Diciembre del 2015. La muestra estuvo constituida por 288 mujeres y para el análisis de los datos se utilizaron frecuencias absolutas y porcientos. Resultados: predominaron las pacientes entre los 40 y 69 años (71.2 %), de color de piel blanca (65.6%) y sin antecedentes patológicos familiares de cáncer mamario (86.1%). Las variables clínico-patológicas estuvieron caracterizadas por un predominio de pacientes en estadio II (62.2 %), con estatus postmenopáusico al momento del diagnóstico (56.9 %) y con un tamaño del tumor entre 2 y 5 cm (77.4 %). El tipo histológico más frecuente fue el carcinoma ductal infiltrante, presentándose en el 85.7 % de la serie y en el 43.6 % de las enfermas se diagnosticó el tumor con grado histológico II. Es de señalar que el 61.1 % de las mujeres del estudio tenían afectación ganglionar al momento del diagnóstico. Conclusiones: se describen los principales factores sociodemográficos y clínico-patológicos, relacionados con esta enfermedad en el territorio, permitiendo realizar un cierre de campo para la ejecución de futuras investigaciones causales.


ABSTRACT Introduction: breast cancer is the second cause of mortality in Cuban women, exceeded in the last three years only by tracheal, bronchial and lung neoplasms. Objective: to describe several epidemiological characteristics related to this disease. Material and method: a retrospective, observational-descriptive epidemiological study was carried out in women diagnosed with breast neoplasm in the Mastology consultation of the provincial hospital ¨Jose Ramon Lopez Tabrane¨, of Matanzas, in the period from January 1st 2010 to December 31st 2015. The sample was formed by 288 women, and for data analyses were used absolute frequencies and percents. Results: there was a predominance of white patients (65.6 %), aged 40-69 years (71.2 %), and without familiar antecedents of breast cancer (86.1 %). The clinical-pathological variables were characterized by the predominance of stage II patients (62.2 %), with menopausal status at the moment they were diagnosed (56.9 %), and with a tumor sized 2-5 cm (77.4 %). The most frequent histological kind was the duct infiltrative carcinoma that was present in 85.7 % of the series; histological grade II tumor was diagnosed in 43.6 % of the patients. it is important to say that 61.1 % of the studied women showed gangliar affectation at the moment of the diagnosis. Conclusions: the main socio-demographic and clinic-pathological factors related to this disease are described, allowing a closing to carry out future causal research.


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology , Breast Neoplasms/epidemiology , Risk Factors , Epidemiologic Studies , Epidemiology, Descriptive , Retrospective Studies , Observational Study
16.
BMC Med Genet ; 14: 7, 2013 Jan 11.
Article in English | MEDLINE | ID: mdl-23311634

ABSTRACT

BACKGROUND: Papillon-Lefèvre Syndrome (PLS) is a type IV genodermatosis caused by mutations in cathepsin C (CTSC), with a worldwide prevalence of 1-4 cases per million in the general population. In México, the prevalence of this syndrome is unknown, and there are few case reports. The diagnosis of twenty patients in the state of Sinaloa highlights the need to characterize this syndrome in Mexicans. METHODS: To understand the basis of PLS in Mexicans, the gene expression, enzymatic activity and mutational analysis of CTSC were assayed in nine PLS patients and their relatives. Frequencies of CTSC gene polymorphisms and HLA alleles were determined in these patients, their relatives, and the population. RESULTS: Patients showed normal CTSC gene expression, but a deep reduction (up to 85%) in enzymatic activity in comparison to unrelated healthy individuals. A novel loss-of-function mutation, c.203 T > G (p.Leu68Arg), was found in all patients, and some carried the polymorphism c.458C > T (p.Thr153Ile). Allelic frequencies in patients, relatives and controls were 88.89%, 38.24% and 0.25% for G (c.203 T > G); and 11.11%, 8.82% and 9.00% for T (c.458C > T). HLA-DRB1*11 was found significantly more frequent (P = 0.0071) in patients than controls (33.33% vs. 7.32%), with an estimated relative risk of 6.33. CONCLUSIONS: The novel loss-of function mutation of CTSC gene (c.203 T > G) found in patients correlated with their diminished enzymatic activity, and HLA-DRB1*11 was found to be associated with PLS. The study of more PLS patients may give more insights into the etiology of the disease as well as its prevalence in México.


Subject(s)
Cathepsin C/genetics , Mutation , Papillon-Lefevre Disease/genetics , Adolescent , Adult , Cathepsin C/metabolism , Child , Child, Preschool , Female , Gene Expression , Gene Frequency , HLA-DRB1 Chains/genetics , Humans , Infant , Male , Mexico , Middle Aged , Polymorphism, Single-Stranded Conformational , Young Adult
19.
Aquat Toxicol ; 105(3-4): 728-34, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21996259

ABSTRACT

The axolotl Ambystoma mexicanum is a neotenic salamander considered a good biological model due to its ability to regenerate limbs, tail, brain and heart cells. Nevertheless, severe reduction of A. mexicanum wild populations in the lacustrine area of Xochimilco, the natural habitat of the axolotl, could be related to several environmental pressures as the presence of organophosphate pesticides (OPPs), intensively applied in agricultural activities in Xochimilco. Thus the aim of this study was to evaluate the effect of environmentally realistic chlorpyrifos (CPF) concentrations, a OPP commonly used in this zone, on esterases activity (acetylcholinesterase and carboxylesterase) and bioconcentration of CPF and to relate them with the motor activity of A. mexicanum juveniles. Axolotls were exposed 48 h to 0.05 and 0.1mg CPF/L, and the responses were evaluated at the end of the CPF exposure. Results suggest that CPF is bioconcentrated into axolotls and that the CPF internal concentrations are related with the observed inhibition activity of AChE (>50%) and CbE (≈ 50%). CPF concentration responsible of the inhibition of the 50% of AChE activity (IC50) was estimated in 0.04 mg CPF/L; however IC50 for CbE activity was not possible to calculate since inhibition levels were lower than 50%, results that suggest a higher resistance of CbE enzymatic activity to CPF. However, motor activity was a more sensitive endpoint to CPF poisoning since time that axolotls spent active and walking, frequency and speed of swimming, frequency of prey attack were reduced >90% of control groups. The motor activity alterations in the axolotl could be related with the registered esterases inhibition. Thus important alterations on axolotls were identified even at short time and low concentrations of CPF exposure. Also, it was possible to link biochemical responses as esterases activity with higher levels of biological organization as behavior. This study provides tools for the regulation of the use of organophosphorus pesticides in the natural habitat of the axolotl.


Subject(s)
Acetylcholinesterase/metabolism , Ambystoma mexicanum/metabolism , Carboxylesterase/metabolism , Chlorpyrifos/toxicity , Insecticides/toxicity , Motor Activity/drug effects , Water Pollutants, Chemical/toxicity , Ambystoma mexicanum/physiology , Animals , Body Burden , Chlorpyrifos/pharmacokinetics , Dose-Response Relationship, Drug , Female , Insecticides/pharmacokinetics , Male , Random Allocation , Toxicity Tests, Acute , Water Pollutants, Chemical/pharmacokinetics
20.
Antonie Van Leeuwenhoek ; 99(3): 671-80, 2011 Mar.
Article in English | MEDLINE | ID: mdl-21203842

ABSTRACT

In eucaryotic cells, the delivery of a secreted protein to the plasma membrane via vesicles must include transport, recognition, and fusion events. Proteins exposed on the cytoplasmic face of the secretory vesicles play a role in these events; these include the GTP-binding proteins, which are crucial components in this process. Fractions enriched with vesicles carrying glucose oxidase (GOX) activity from Fusarium oxysporum f. sp. lycopersici, a soilborne fungal pathogen causing vascular wilt on tomato plants, were obtained using two successive sucrose gradients, the first a linear-log and the second an isopycnic gradient. In this study, we used the following Fusarium strains: a wild-type and a strain carrying a Δrho1 loss-of-function mutation (presenting dramatically reduced virulence). By ADP-ribosylation with C3 exotoxin, and Western blot analysis with specific antibodies, we identified the small GTPases Rho1, Rho4, Cdc42 and Rab8, and a heterotrimeric Gα protein associated with vesicles carrying GOX activity. This was done for both strains, with the exception of Rho1, which was absent in the mutant strain; in addition, the levels of the Cdc42 protein were observed to be higher in the Δrho1 strain. These data indicate that three Rho proteins, Rho1, Rho4, and Cdc42, are present in secretory vesicles carrying GOX activity in F. oxysporum, and that Rho1 is not essential for the transport and secretion of, at least, cargo proteins carried in secretory vesicles, or Cdc42/Rho4 can fulfill its role in these events.


Subject(s)
Fungal Proteins/metabolism , Fusarium/metabolism , GTP-Binding Proteins/metabolism , Glucose Oxidase/metabolism , rho GTP-Binding Proteins/metabolism , Fungal Proteins/genetics , Fusarium/genetics , GTP-Binding Proteins/genetics , Glucose Oxidase/genetics , Immunoblotting , cdc42 GTP-Binding Protein/genetics , cdc42 GTP-Binding Protein/metabolism , rho GTP-Binding Proteins/genetics
SELECTION OF CITATIONS
SEARCH DETAIL