5 results on '"Ruiz Corella, Max A."'
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2. Caracterización de mujeres universitarias con síndrome de ovario poliquístico en Costa Rica
- Author
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González Salazar, Mariann, Chinchilla Monge, Ricardo, Holst Schumacher, Ileana, Calderón Jiménez, Minor, Barrantes Santamaría, Mauro, Ruiz Corella, Max A., González Salazar, Mariann, Chinchilla Monge, Ricardo, Holst Schumacher, Ileana, Calderón Jiménez, Minor, Barrantes Santamaría, Mauro, and Ruiz Corella, Max A.
- Abstract
Aim: Describe some clinical findings and biochemical characterization of a sample of Costa Rican university women with polycystic ovarian syndrome. Methods: Observational-descriptive study where 160 Costa Rican women between 17 and 28 years old participated. Some physical characteristics and clinical parameters (overweight, acne, hirsutism, spontaneous abortions, menstrual disorders, among others) and biochemical parameters (glucose, lipid profile, insulin, total testosterone, TSH, among others) associated with the syndrome were studied. Data was analyzed applying descriptive statistics. The t-Student test was used to compare the means of the variables with normal distribution, while the Mann-Whitney test was performed for non-parametric variables. A p value < 0.05 was considered significant. Spearman’s coefficients were used to determine the levels of correlation between the different study variables. Results: Women with Polycystic Ovarian Syndrome presented significantly higher values in relation to women without the syndrome in the variables of weight (p = 0.003), body mass index (p < 0.001), as well as blood total testosterone concentration (p < 0.001), LDL-cholesterol (p = 0.020), triglycerides (p < 0.001) and the Castelli index (p < 0.001). HDL-cholesterol concentration (p < 0.001) was significantly higher in women without the Syndrome. In addition, there was a significantly higher proportion of women with the syndrome who had insulin resistance (p = 0.007), LH/FSH ratio > 2.8 (p = 0.009), hirsutism (p = 0.001), menstrual disorders (p=0.029) and obesity (p=0.014) compared to women without the syndrome. Conclusions: Hyperandrogenism, insulin resistance, altered lipid concentrations and high Castelli Indexes are the most prevalent biochemical parameters in the sample of Costa Rican women with Polycystic Ovarian Syndrome. The execution of projects with broader biochemical profiles together with ultrasound tests are the new challenges for future research on Polycy, Objetivo: Caracterizar un grupo de mujeres universitarias costarricenses con síndrome de ovario poliquístico mediante una evaluación clínica y bioquímica. Métodos: Estudio observacional-descriptivo en que participaron 160 mujeres costarricenses con edades comprendidas entre los 17 y 28 años con el fin de identificar posibles asociaciones al síndrome de ovario poliquístico. Se estudiaron algunas de sus características físicas y parámetros clínicos, como sobrepeso, acné, hirsutismo, abortos espontáneos y trastornos menstruales, junto con parámetros bioquímicos, tales como glucosa, perfil lipídico, insulina, testosterona total y TSH, entre otros. Los datos fueron analizados aplicando estadística descriptiva. La prueba t-Student se utilizó para comparar los promedios de las variables con distribución normal, mientras que la prueba de Mann-Whitney se realizó para variables no paramétricas. Un valor de p < 0,05 se consideró como significativo. Los coeficientes de Spearman se utilizaron para determinar los niveles de correlación entre las diferentes variables del estudio. Resultados: Las mujeres con síndrome de ovario poliquístico presentaron valores significativamente más altos en relación con las mujeres sin el síndrome en las variables de peso (p = 0,003), el índice de masa corporal (p < 0,001), así como de la concentración sanguínea de testosterona total (p < 0,001), LDLcolesterol (p = 0,020), triglicéridos (p < 0,001) y el índice de Castelli (p < 0,001). La concentración de HDL-colesterol (p < 0,001) fue más alta en las mujeres sin el síndrome. Además, se observó una proporción más alta de mujeres con el síndrome que presentaban resistencia a la insulina (p = 0,007), la relación LH/ FSH > 2,8 (p = 0,009), hirsutismo (p = 0,001), trastornos menstruales (p=0,029) y obesidad (p=0,014) en comparación con las mujeres sin el síndrome. Conclusiones: El hiperandrogenismo, la resistencia a la insulina, la concentración de lípidos alterada e índices de Castelli elevados son los
- Published
- 2023
3. ¿Qué es el Síndrome de Ovario Poliquístico?
- Author
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Ruiz Corella, Max A. and Holst Schumacher, Ileana
- Subjects
Ovario poliquístico ,618.11 Enfermedades de los ovarios ,Salud reproductiva ,Mujeres - Abstract
PDF sin OCR El síndrome de ovario poliquístico (SOP) es uno de los desórdenes endocrinos más comunes en mujeres en edad reproductiva, ya que afecta, aproximadamente, al 5-10% de la población femenina. Generalmente aparece durante la adolescencia y puede mantenerse a lo largo de toda la vida. Las mujeres que presentan esta enfermedad son más propensas a sufrir de síndrome metabólico y todas sus comorbilidades asociadas. Este síndrome se asocia con el 75% de todos los desórdenes anovulatorios que causan infertilidad, con el 90% de las mujeres con oligomenorrea, con más del 90% de aquellas con hirsutismo, y con más del 80% con acné persistente. Su etiología es desconocida, aunque existe evidencia reciente que implica a ciertos factores genéticos. UCR::Vicerrectoría de Docencia::Salud::Facultad de Microbiología UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Centro de Investigación en Hematología y Trastornos Afines (CIHATA)
- Published
- 2010
4. Clostridium perfringens y Clostridium difficile como agentes etiológicos de diarrea nosocomial asociada a antibióticos en niños costarricenses
- Author
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Ruiz Corella, Max A., Altamirano Silva, Pamela, Rodríguez - Cavallini, Evelyn, Gamboa Coronado, María del Mar, Ruiz Corella, Max A., Altamirano Silva, Pamela, Rodríguez - Cavallini, Evelyn, and Gamboa Coronado, María del Mar
- Abstract
Nosocomial diarrhea may be caused by the use of antibiotics that alter the indigenous microbiota and favor the colonization of pathogens. Clostridium difficile, a Gram positive spore-forming anaerobe, is considered a frequent etiological agent; recently, C. perfringens has also been implicated and may act, synergically with C. difficile. The present study describes the prevalence of these bacteria in a group of children with nosocomial diarrhea, an entity that requires precise therapeutic management. Material and methods. Of the samples of nosocomial diarrheic feces associated to antibiotics from children in a Costa Rican hospital 39 were processed. The presence of toxin A of C. difficile and enterotoxin of C. perfringens was determined. Bacterial isolates were obtained from CCFA and OPSP agar and their antibiotic susceptibility pattern was determined. Results. Enterotoxin of C. perfringens was detected in 3 (7.7%) and C. perfringens was isolated from 8 (20.5%) of the samples, none was enterotoxigenic. All of the isolates were sensitive to nine antibiotics and resistant to four. C. difficile toxin was detected in 6 (15.4%) samples and the bacterium was isolated in 5 (12.8%). None of the isolates was sensitive to cefoxitin, and some presented resistance to other four antibiotics. In 3 (7.7%) of the samples, C. difficile and C. perfringens were simultaneously isolated, but none was positive for both toxins. Discussion. Of the nosocomial diarrheas analyzed 23.1% were caused by C. difficile or C. perfringens, anaerobic pathogens that are not included in Costa Rican hospitals as bacteriological routines. These results reveal the importance of implementing techniques for their detection. The antimicrobial sensitivity tests reveal certain degree of resistance that should be considered for accurate treatment. Further studies shall be performed in order to confirm this resistance., Introducción. La diarrea nosocomial es producida, entre otras causas, por el uso de antibióticos que distorsionan la microbiota indígena y favorecen la colonización de patógenos. Clostridium difficile, una bacteria Gram positiva, anaerobia y esporulada, es considerada agente etiológico frecuente; recientemente se ha implicado a C. perfringens, en ocasiones sinérgicamente con C. difficile. Con este estudio se pretende determinar el papel de estas bacterias en diarreas de niños, población altamente susceptible de infección nosocomial y cuyo manejo terapéutico debe ser cada vez más preciso. Material y Métodos. Se procesaron 39 muestras de diarreas nosocomiales asociadas a antibióticos, de un hospital de niños de Costa Rica. Se determinó la presencia de toxina A de C. difficile y de enterotoxina de C. perfringens. Se realizaron aislamientos bacterianos en agar CCFA y OPSP y se determinó su sensibilidad a los antibióticos. Resultados. Se detectó la enterotoxina de C. perfringens en 3 (7.7%) muestras y se aislaron 8 (20.5%) cepas de C. perfringens, ninguna enterotoxigénica. Todos los aislamientos fueron sensibles a nueve antibióticos y hubo resistencia a otros cuatro. La toxina de C. difficile se detectó en 6 (15.4%) muestras y el aislamiento bacteriano en 5 (12.8%). Ninguno de éstos fue sensible a cefoxitina; hubo resistencia a cuatro antibióticos más. En 3 (7.7%) muestras se aisló C. difficile y C. perfringens, sin detección simultánea de ambas toxinas. Discusión. El 23.1% de las diarreas nosocomiales fueron causadas por C. difficile o C. perfringens, patógenos cuya detección no está incluida en la rutina bacteriológica de los hospitales costarricenses; los resultados demuestran la importancia de implementar técnicas para su detección. Las pruebas de sensibilidad antimicrobiana revelan cierto grado de resistencia, que debería considerarse para brindar un tratamiento adecuado. Es necesario ampliar estos estudios, a fin de corroborar esa resistencia.
- Published
- 2007
5. Clostridium perfringens y Clostridium difficile como agentes etiológicos de diarrea nosocomial asociada a antibióticos en niños costarricenses.
- Author
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Ruiz-Corella, Max A., Altamirano-Silva, Pamela, Rodriguez-Cavallini, Evelyn, and Gamboa-Coronado, María Del M.
- Subjects
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CLOSTRIDIUM perfringens , *CLOSTRIDIOIDES difficile , *NOSOCOMIAL infections in children , *DIARRHEA , *ANTIBIOTICS , *DRUG side effects , *ENTEROTOXINS , *BACTERIA - Abstract
Introduction. Nosocomial diarrhea may be caused by the use of antibiotics that alter the indigenous microbiota and favor the colonization of pathogens. Clostridium difficile, a Gram positive spore-forming anaerobe, is considered a frequent etiological agent; recently, C. perfringens has also been implicated and may act, synergically with C. difficile. The present study describes the prevalence of these bacteria in a group of children with nosocomial diarrhea, an entity that requires precise therapeutic management. Material and methods. Of the samples of nosocomial diarrheic feces associated to antibiotics from children in a Costa Rican hospital 39 were processed. The presence of toxin A of C. difficile and enterotoxin of C. perfringens was determined. Bacterial isolates were obtained from CCFA and OPSP agar and their antibiotic susceptibility pattern was determined. Results. Enterotoxin of C. perfringens was detected in 3 (7.7%) and C. perfringens was isolated from 8 (20.5%) of the samples, none was enterotoxigenic. All of the isolates were sensitive to nine antibiotics and resistant to four. C. difficile toxin was detected in 6 (15.4%) samples and the bacterium was isolated in 5 (12.8%). None of the isolates was sensitive to cefoxitin, and some presented resistance to other four antibiotics. In 3 (7.7%) of the samples, C. difficile and C. perfringens were simultaneously isolated, but none was positive for both toxins. Discussion. Of the nosocomial diarrheas analyzed 23.1% were caused by C. difficile or C. perfringens, anaerobic pathogens that are not included in Costa Rican hospitals as bacteriological routines. These results reveal the importance of implementing techniques for their detection. The antimicrobial sensitivity tests reveal certain degree of resistance that should be considered for accurate treatment. Further studies shall be performed in order to confirm this resistance. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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