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Característica ultrasonográficas B mode y Doppler del folículo dominante y cuerpo lúteo en vacas Criollas sometidas a un protocolo de sincronización de celo
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Perez Guerra, Uri Harold

; Luque Mamani, Natalio

; Condori Apaza, Rafael

; Manrique Quispe, Yan Pierr

; Escobedo Arizaca, Ángel

; Mamani Cato, Rubén

; Urviola Sánchez, Jesús Martin

; Pérez Durand, Manuel Guido

Journal of the Selva Andina Animal Science

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2023, Volume 10 N. 1 Pages 52 - 60

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen El objetivo fue determinar las características ultrasonográfica B mode y Doppler del folículo dominante y cuerpo lúteo en vacas Criollas sometidas a un protocolo de sincronización de celo. El estudio fue realizado en la Estación Experimental Agraria ILLPA durante los meses de mayo a julio utilizando 15 vacas de raza Criolla con condición corporal regular y alimentadas con pasto natural, el protocolo consistió en colocar benzoato de estradiol y dispositivo intravaginal el primer día, posteriormente el día 7 se retiró el dispositivo y se aplicó un análogo de Prostaglandina F2α, el día 8 se aplicó nuevamente benzoato de estradiol y el día 9 se realizó la inseminación artificial con semen de un solo reproductor de raza Fleckvieh, la evaluación ultrasonográfica fue realizada los días 7 y 9 (iniciado la sincronización) para determinar el diámetro del folículo dominante, tasa de crecimiento y diámetro de cuerno uterino, la evaluación del cuerpo lúteo fue realizada el día 19 determinando el diámetro, volumen y área vascular luteal (%), todos los análisis fueron realizados con el programa Jamovi 1.6.23.0. Los resultados del folículo dominante el día 7 fue de 8.69 mm y día 9 de 10.7 mm con una tasa de crecimiento de 1.14 mm/día, el diámetro del cuerno uterino derecho fue 11.85 mm (día 7) mismo que aumento a 15.32 mm (día 9) mientras el cuerno izquierdo aumento de 12.72 a 16.27 mm, las características del cuerpo lúteo fueron diámetro 7.96 mm, volumen 0.23 mm3 y área vascular luteal fue de 20.96 %, finalmente, la tasa de preñez obtenida fue 6 vacas de 15 inseminadas que representa el 40 %. En conclusión, los diámetros y volumen del folículo dominante y cuerpo lúteo son inferiores a lo reportado en otras razas en las mismas condiciones ambientales, el área vascular luteal fue de 20.96 % proporción de irrigación sanguínea del CL en vacas Criollas finalmente la tasa de preñez fue del 40 %. Sin embargo, es necesario indicar que son los primeros reportes de características Doppler en vacas Criollas.

Abstract The objective was to determine the ultrasonographic B mode and Doppler characteristics of the dominant follicle and corpus luteum in Criollo cows subjected to an oestrus synchronization protocol. The study was conducted at the Agricultural Experimental Station ILLPA during the months of May to July using 15 Criollo cows with regular body condition and fed with natural pasture, the protocol consisted of placing estradiol benzoate and intravaginal device on the first day, then on day 7 the device was removed and an analogue of Prostaglandin F2α was applied, On day 8 estradiol benzoate was applied again and on day 9 artificial insemination was performed with semen from a single Fleckvieh sire, ultrasonographic evaluation was performed on days 7 and 9 (synchronization started) to determine the diameter of the dominant follicle, growth rate and diameter of the uterine horn, the evaluation of the corpus luteum was performed on day 19 determining the diameter, volume and luteal vascular area (%), all the analyses were performed with the Jamovi 1 Programme. 6.23.0. The results of the dominant follicle on day 7 was 8.69 mm and day 9 was 10.7 mm with a growth rate of 1.14 mm/day, the diameter of the right uterine horn was 11.85 mm (day 7) which increased to 15.32 mm (day 9) while the left horn increased from 12.72 to 16.27 mm. 72 to 16.27 mm, the characteristics of the corpus luteum were 7.96 mm diameter, volume 0.23 mm3 and luteal vascular area was 20.96 %, finally, the pregnancy rate obtained was 6 cows out of 15 inseminated which represents 40 %. In conclusion, the diameters and volume of the dominant follicle and corpus luteum are lower than those reported in other breeds in the same environmental conditions, the luteal vascular area was 20.96 %, the proportion of blood irrigation of the CL in Criollo cows and finally the pregnancy rate was 40 %. However, it is necessary to point out that these are the first reports of Doppler characteristics in Criollo cows.

https://doi.org/10.36610/j.jsaas.2023.100100052

Valoración económica de plantaciones de bolaina blanca (Guazuma crinita mart.) En Ucayali, Perú
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Revilla‑Chávez, Jorge Manuel

; López‑Galan, Edinson Eduardo

; Gonzales‑Alvarado, Antony Cristhian

; Manturano Perez, Rubén Dario

; Sáenz‑Ramírez, Lyanna Hellen

; Guerra‑Arevalo, Hector

; Rojas Mego, Krystel Clarissa

; Mori‑Vásquez, Jorge Arturo

Folia Amazónica

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jul 2022, Volume 31 N. 2 Pages 243 - 257

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Between 2001 and 2006, demostrative plantations of bolaina blanca (Gauzuma crinita Mart.) were evaluated in three sectors of the Aguaytı́a river basin that had as previous use cassava crop, 3‑year purma and corn crop in sectors 1, 2 and 3 respectively. Using predictive models of volume and biomass in function of the plantation age, we determined the technical‑economic viability of plantations in a six‑years‑old scenario of sale of slats, tucos and cantoneras (goods) and capture of CO2eq (services) updated to the year 2022 with an annual effective rate of return of 22%.They had a net present value (NPV), internal rate of return (IRR) and benefit/cost ratio (B/C) of S/. 8 408,67; 60,9% and 1,58 for sector 3; S/. 967,23; 26,5% and 1,07 for sector 2; and S/. ‑7 945,28; 0,0% and 0,14 for sector 1, which were mainly influenced by income generated by the sale of wood chips and the sale of positive flows of carbon sequestration services resulting from the establishment of plantations in soils where the previous use was an annual crop. Thus, the plantation in sectors 3 and 2 were technically and economically viable, while the plantations in sector 1 were not.

RESUMEN Entre los años 2001 al 2006, se evaluaron plantaciones demostrativas de bolaina blanca (Guazuma crinita Mart.) en tres sectores de la cuenca del río Aguaytía que tenían como uso anterior un cultivo de yuca, purma de 3 años y cultivo de maíz en los sectores 1, 2 y 3 respectivamente. Utilizando modelos de predicción de volumen y biomasa en función a la edad de la plantación se determinó la viabilidad técnica‑económica de plantaciones a los seis años de edad en un escenario de venta de tablillas, tucos y cantoneras (bienes) y captura de CO2eq (servicios) actualizados al año 2022 con una TEA del 22%. Tuvieron un valor actual neto (VAN), tasa interna de retorno (TIR) y relación beneficio/costo (B/C), de S/. 8408,67; 60,9% y 1,58 para el sector 3; S/.967,23; 26,5% y 1,07 para el sector 2 y S/. ‑7 945,28; 0,0% y 0,14 para el sector 1, los mismos que estuvieron influenciado principalmente por ingresos generados por la venta de tablillas de madera y la venta de flujos positivos de servicios de captura de carbono, los mismos que resultaron del establecimiento de plantaciones en suelos donde el uso anterior fue un cultivo anual. Por lo que las plantaciones del sector 3 y 2 fueron técnica‑económicamente viables, mientras que las plantaciones del sector 1 no lo fueron.

https://doi.org/10.24841/fa.v31i2.574

Viabilidad y seguridad de la biopsia prostática transperineal en la era de fusión de imágenes por resonancia magnética cognitiva/ultrasonido en la detección del cáncer de próstata
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Zegarra-Montes, Luis

; Sarria-Bardales, Gustavo

; Martínez-Perez, David

; Del-Castillo-Pacora, Rubén

; Dyer-Velarde-Álvarez, Richard

; Trelles-De-Belaunde, Miguel

Acta Médica Peruana

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apr 2022, Volume 39 N. 2 Pages 114 - 119

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN Objetivo : Describir los resultados de la biopsia prostática transperineal por fusión de la resonancia magnética cognitiva y ultrasonido en la detección del cáncer. Materiales y métodos : Estudio de serie de casos, retrospectivo, realizado en Clínica Delgado entre julio del 2019 y octubre del 2021. Se incluyó pacientes con examen digital de próstata y/o Antígeno Prostático Específico anormal e imágenes de Resonancia Magnética de próstata con lesiones categoría PI-RADS 4 o 5. Excluyendo a pacientes con trastorno de coagulación, lesiones rectales, imposibilidad para abducción, comorbilidades para anestesia. Registramos las características clínicas, demográficas, datos de antígeno prostático específico, volumen de la próstata, lesiones PI-RADS, tasas de cáncer, complicaciones. Resultados : Se evaluaron 18 pacientes, con edad media de 69,33 ± 7,67 años. La media del antígeno prostático específico de 14,94 ± 12,42 ng/mL. La media del volumen de próstata de 57,72 ± 28,68 cc. Al examen digital de la próstata 16/18 (88.88 %) pacientes tenían sospecha de cáncer. Se hicieron biopsias con 19 núcleos en pacientes cuya RMNmP tenían lesiones con categoría de PI-RADS 4 en 6/18 (33,33 %) de los cuales 3 resultaron positivas a Adenocarcinoma y otras 3 negativas a cáncer. Biopsia con 16 núcleos en PIRADS 5 en 12/18 (66,67 %) pacientes, resultando todas positivas a cáncer. Adenocarcinoma Acinar en 15/18 (83,33 %) con Gleason 6 en 2/18 (11,11 %) y Gleason ≥ 7 en 13/18 (72,22 %) pacientes. Complicaciones leves como hematuria 1/18 (5,6 %), disuria terminal 8/18 (44,4 %) y molestia perineal 7/18 (38,8 %) y ninguna infecciosa. Conclusiones : la biopsia prostática transperineal por fusión de imágenes de resonancia magnética cognitiva y ultrasonido es factible, segura, con tasas importantes de positividad y sin infecciones.

ABSTRACT Objective : To describe the results of transperineal prostate biopsy by fusion of cognitive magnetic resonance imaging and ultrasound in the detection of cancer. Materials and methods : A retrospective case series study conducted at the Delgado Clinic between July 2019 and October 2021. Patients with digital prostate examination and/or abnormal Prostatic Specific Antigen and prostate MRI images with category lesions were included PI-RADS 4 or 5. Excluding patients with coagulation disorders, rectal injuries, impossibility for abduction, comorbidities for anesthesia. We recorded clinical and demographic characteristics, prostate-specific antigen data, prostate volume, PI-RADS lesions, cancer rates, and complications. Results: 18 patients were evaluated, with a mean age of 69.33 ± 7.67 years. The mean prostate specific antigen was 14.94 ± 12.42 ng/mL. The mean prostate volume was 57.72 ± 28.68 cc. At the digital examination of the prostate, 16/18 (88.88%) patients had suspected cancer. Biopsies with 19 cores were performed in patients whose NMRmP had lesions with PI-RADS category 4 in 6/18 (33.33%), of which 3 were positive for Adenocarcinoma and another 3 were negative for cancer. Biopsy with 16 PIRADS 5 cores in 12/18 (66.67%) patients, all of which were positive for cancer. Acinar adenocarcinoma in 15/18 (83.33%) with Gleason 6 in 2/18 (11.11%) and Gleason ≥ 7 in 13/18 (72.22%) patients. Mild complications such as hematuria 1/18 (5.6%), terminal dysuria 8/18 (44.4%) and perineal discomfort 7/18 (38.8%) and none infectious. Conclusions : transperineal prostate biopsy by fusion of cognitive magnetic resonance imaging and ultrasound is feasible, safe, with significant positivity rates and without infections.

https://doi.org/10.35663/amp.2022.392.2331

Resonancia magnética cardíaca y seguimiento de futbolistas profesionales post COVID-19
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Peidro, Roberto

; Argemi, Rubén

; Batista, Jorge

; Logioco, Lucas

; Perez De Arenaza, Diego

; Bortman, Guillermo

Medicina (Buenos Aires)

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aug 2021, Volume 81 N. 4 Pages 491 - 495

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract The incidence of post-COVID-19 cardiac compromise is not well known. The eventual cardiac repercussions on a return to high-performance sport are unclear. A prospective observational study with evaluation by physical examination, electrocardiogram, Doppler echocardiogram and cardiac magnetic resonance imaging (CMR) was carried out in international level professional soccer players recovering from COVID-19 who had the disease asymptomatic or with mild symptoms. Four-month follow-up with participation in national and international competitions. Twenty-four soccer players were included, age 27.13 years (between 20 and 36). Nine (37.5%) had asymptomatic disease and 15 (62.5%) had mild symptoms. No athletes required hospitalization. Physical, electrocardiographic, and echocardiographic examinations did not reveal heart disease. CMRs showed ventricular thicknesses and volumes consistent with high-performance athletes. In T1, T2 and fat saturation signals, no fat infiltration or signs of edema were observed. No late enhancement after gadolinium injection. They began their training between 12 and 14 days after diagnosis. Eleven (45.8%) participated between 4 and 6 international matches of Libertadores de América International Cup. The remaining 13 completed high intensity training sessions and participated in local league competitions. At 4 months after diagnosis, none of the soccer players developed cardiac events and training and competitions were well tolerated. These findings suggest low cardiovascular impact of COVID 19 and excellent tolerance to early post-COVID high intensity exercise of young athletes recovering from the disease with no or mild symptoms.

Resumen La incidencia de compromiso cardíaco post COVID-19 en pacientes que cursaron la enfermedad asintomáticos o con síntomas leves no es bien conocida. Tampoco están claras las eventuales repercusiones cardíacas en el regreso al deporte de alto rendimiento. Se realizó un estudio observacional pros pectivo con evaluación mediante electrocardiograma, ecocardiograma Doppler y resonancia magnética cardiaca (RMC) a hombres futbolistas profesionales de nivel internacional que habían cursado COVID-19 asintomáticos o con síntomas leves; seguimiento 4 meses con participación en competencias nacionales e internacionales. Se incluyeron 24 futbolistas, edad media 27, (20-36). Nueve (37.5%) cursaron la enfermedad asintomáticos y 15 (62.5%) con síntomas leves. Los exámenes físicos, electro y ecocardiográficos no evidenciaron cardiopatía. Las RMCs mostraron espesores y volúmenes ventriculares acordes a deportistas de alto rendimiento. En las señales de T1, T2 y saturación grasa no se observó infiltración grasa ni signos de edema; sin realce tardío post inyección de gadolinio. Comenzaron sus entrenamientos entre 12 y 14 días post diagnóstico. Once (45.8%) participaron entre 4 y 6 encuentros internacionales de la Copa Libertadores de América. Los restantes 13 cumplieron con entrenamientos de alta intensidad y participaron en competencias de liga local. A 4 meses del diagnóstico nin guno de los futbolistas desarrolló eventos cardíacos y los entrenamientos y competencias fueron bien tolerados. Estos hallazgos sugieren la escasa repercusión cardiovascular de COVID-19 y la excelente tolerancia al ejercicio de alta intensidad realizado en forma precoz post COVID de deportistas jóvenes que cursaron la enfermedad asintomáticos o con síntomas leves.

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Transmission cluster of COVID-19 cases from Uruguay: emergence and spreading of a novel SARS-CoV-2 ORF6 deletion
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Panzera, Yanina

; Ramos, Natalia

; Calleros, Lucía

; Marandino, Ana

; Tomás, Gonzalo

; Techera, Claudia

; Grecco, Sofía

; Frabasile, Sandra

; Fuques, Eddie

; Coppola, Leticia

; Goñi, Natalia

; Ramas, Viviana

; Sorhouet, Cecilia

; Bormida, Victoria

; Burgueño, Analía

; Brasesco, María

; Garland, Maria Rosa

; Molinari, Sylvia

; Perez, Maria Teresa

; Somma, Rosina

; Somma, Silvana

; Morel, Maria Noelia

; Mogdasy, Cristina

; Chiparelli, Héctor

; Arbiza, Juan

; Delfraro, Adriana

; Pérez, Ruben

Memórias do Instituto Oswaldo Cruz

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2021, Volume 116 elocation e210275

Abstract: En | Text: En | PDF: En

BACKGROUND Evolutionary changes in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) include indels in non-structural, structural, and accessory open reading frames (ORFs) or genes. OBJECTIVES We track indels in accessory ORFs to infer evolutionary gene patterns and epidemiological links between outbreaks. METHODS Genomes from Coronavirus disease 2019 (COVID-19) case-patients were Illumina sequenced using ARTIC_V3. The assembled genomes were analysed to detect substitutions and indels. FINDINGS We reported the emergence and spread of a unique 4-nucleotide deletion in the accessory ORF6, an interesting gene with immune modulation activity. The deletion in ORF6 removes one repeat unit of a two 4-nucleotide repeat, which shows that directly repeated sequences in the SARS-CoV-2 genome are associated with indels, even outside the context of extended repeat regions. The 4-nucleotide deletion produces a frameshifting change that results in a protein with two inserted amino acids, increasing the coding information of this accessory ORF. Epidemiological and genomic data indicate that the deletion variant has a single common ancestor and was initially detected in a health care outbreak and later in other COVID-19 cases, establishing a transmission cluster in the Uruguayan population. MAIN CONCLUSIONS Our findings provide evidence for the origin and spread of deletion variants and emphasise indels’ importance in epidemiological studies, including differentiating consecutive outbreaks occurring in the same health facility.

https://doi.org/10.1590/0074-02760210275

Fractional Order PID Control Law for Trajectory Tracking Using Fractional Order Time-Delay Recurrent Neural Networks for Fractional Order Complex Dynamical Systems
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Perez P., Joel

; Perez, Jose P.

; Perez P., Ruben

; Flores H., Angel

Computación y Sistemas

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dec 2019, Volume 23 N. 4 Pages 1583 - 1591

Abstract: En | Text: En | PDF: En

Abstract This paper presents an extension to the theory on the analysis of stability of complex systems with time delay of fractional order, the previous study is based on the theory of functions of Lyapunov-Krasovski and the Fractional Order PID control law. The analytical results are illustrated by the simulation of fractional nonlinear systems interconnected with time delay which are forced to follow complex trajectories as chaotic systems.

https://doi.org/10.13053/cys-23-4-2754 47 downloads

Thermal-hydraulic performance of a slit fin and influence of the fin pitch
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Franziskus Gruger, Julius

; Menéndez-Pérez, Alberto

; Borrajo-Perez, Rubén

Ingeniería Mecánica

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aug 2018, Volume 21 N. 2 Pages 59 - 67

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract The airside performance of compact heat exchanger with slit fins having one row of tubes is investigated in this study using computational fluid dynamics. A numerical approach was implemented and it was certified using correlations of published literature. The objective was to obtain the thermal-hydraulic behavior for different fin pitches while ranging the Reynolds number from 400 to 1800. The influence on heat transfer coefficient, fin efficiency and heat flux was found. It is observed to be a function of the fin pitch, which is at its best when the offset strips of one fin have the same distance to the ones of the opposite arranged strips as to that fin plate. Was found, for each fin pitch,a peak in the fin efficiency as a function of the inlet velocity.

Resumen El trabajo constituyó una aproximación numérica del desempeño térmico de intercambiadores de calor compactos con aletas slit y una sola fila de tubos. El modelo numérico se validó frente a correlaciones experimentales publicadas en la literatura. El objetivo fue estudiar el comportamiento termo-hidráulico como una función del espaciamiento entre aletas en un rango de números de Reynolds variable entre 400 y 1800. Se determinó la influencia del paso entre aletas sobre el coeficiente de transferencia de calor, la eficiencia de la aleta y el flujo de calor. Se observó que el paso entre aletas ejerce influencia sobre estas magnitudes encontrándose que el mejor valor era aquel que permitía que la parte horizontal de las slit quedase en el centro del canal entre aletas y a igual distancia de cada aleta. Además, se encontró que la eficiencia de la aleta posee un pico para cada paso entre aletas que depende de la velocidad de entrada.

FACTORS ASSOCIATED WITH COMPLEX REGIONAL PAIN SYNDROME IN SURGICALLY TREATED DISTAL RADIUS FRACTURE
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ORTIZ-ROMERO, JOEL

; BERMUDEZ-SOTO, IGNACIO

; TORRES-GONZÁLEZ, RUBÉN

; ESPINOZA-CHOQUE, FERNANDO

; ZAZUETA-HERNANDEZ, JESÚS ABRAHAM

; PEREZ-ATANASIO, JOSÉ MANUEL

Acta Ortopédica Brasileira

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oct 2017, Volume 25 N. 5 Pages 194 - 196

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: Este estudo tem como objetivo identificar fatores de risco associados ao desenvolvimento de síndrome de dor regional complexa (CRPS) após o tratamento cirúrgico da fratura distal do rádio (DRF). Métodos: Este estudo de caso/controle analisou pacientes atendidos de janeiro de 2014 a janeiro de 2016. Resultados: Em nossa amostra de 249 pacientes, 4% desenvolveram CRPS. Os fatores associados foram compensação econômica (razão de chances [RC] 14,3), idade (RC 9,38), fratura associada (RC 12,94) e nível de impacto (RC 6,46), bem como história psiquiátrica (RC 7,21). Conclusões: Os pacientes com idade produtiva e história de trauma de alto impacto e os com história de transtornos psiquiátrico têm maior risco de desenvolver CRPS depois de DRF. Nível de Evidência III, Estudo de Caso Controle.

ABSTRACT Objective: The aim of this study was to identify factors associated with developing complex regional pain syndrome (CRPS) after surgical treatment for distal radius fracture (DRF). Methods: This case-control study analyzed patients seen from January 2014 to January 2016. Results: In our sample of 249 patients, 4% developed CRPS. Associated factors were economic compensation via work disability (odds ratio [OR] 14.3), age (OR 9.38), associated fracture (OR 12.94), and level of impact (OR 6.46), as well as psychiatric history (OR 7.21). Conclusions: Economically-productive aged patients with a history of high-impact trauma and patients with a history of psychiatric disorders have greater risk of developing CRPS after DRF. Level of Evidence III, Case-Control Study.

https://doi.org/10.1590/1413-785220172505165544 1364 downloads

Prevalencia de disfunción glucémica post pancreatitis aguda: Estudio prospectivo
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Soutelo, María J.

; Saban, Melina

; Fritz, María C.

; Perez, Susana

; Lutfi, Ruben J.

; Gasali, Fernando

Revista de Gastroenterología del Perú

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jul 2012, Volume 32 N. 3 Pages 262 - 266

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

OBJECTIVE: To estimate the prevalence of altered metabolism of carbohydrates in patients with mild acute pancreatitis METHODS: We included 85 patients diagnosed with pancreatitis. We used to evaluate prognosis Balthazar and Ranson criteria. All patients were interviewed and examined. Was performed routine laboratory and Oral glucose tolerance test (OGTT) We excluded patients with previous diagnosis of diabetes mellitus, alcoholic pancreatitis, severe hypertriglyceridemia and recurrent/ severe pancreatitis RESULTS: 30 women and 27 men. After performing the OGTT were classified into three groups. Group 1 (n: 19): normal OGTT; Group 2 (n: 33): GAA, IHC, or both, and Group 3 (n = 5): with diabetes mellitus. Patients in group 3 had a higher average age (p = 0.02), and higher diastolic blood pressure (DBP) (p = 0.048). We observe a significant difference in fasting glucose values (p = 0.0001) and 120 minutes post-OGTT in all groups (p = 0.0001). HOMA was found higher (p = 0.031) in group 2. CONCLUSIONS: This study showing a link between mild acute pancreatitis and dysfunction of glucose metabolism, which found older patients, DBP and those with metabolic syndrome, had a higher prevalence of 65.66% of Pre diabetes and diabetes.

OBJETIVO: Estimar la prevalencia de la alteración del metabolismo de los hidratos de carbono en pacientes con pancreatitis aguda leve MÉTODOS: Se incluyó 85 pacientes con diagnóstico de pancreatitis. Se utilizaron los criterios de Ranson y Balthazar para evaluar pronóstico. Los pacientes fueron interrogados y examinados. Se realizó laboratorio de rutina y prueba de tolerancia oral a la glucosa (PTOG). Se excluyeron pacientes con diagnóstico previo de diabetes mellitus, pancreatitis alcohólica, hipertrigliceridemia severa y pancreatitis recurrente/severas. RESULTADOS: Ingresaron 30 mujeres y 27 hombres. Post PTOG fueron clasificados en tres grupos. Grupo 1 (n: 19): PTOG normal, Grupo 2 (n: 33): GAA, IHC o ambas y Grupo 3 (n: 5): diagnóstico de diabetes mellitus. El grupo 3 presentó un promedio mayor de edad (p=0,02) y Tensión Arterial Diastólica (p=0,048). Se observó una diferencia significativa en los valores de glucemia basal (p= 0.0001) y a los 120 minutos post PTOG (p= 0.0001). El HOMA, se encontró elevado (p=0.031) en el grupo 2. CONCLUSIONES: Este trabajo muestra una relación entre pancreatitis agudas leves y disfunción del metabolismo de la glucosa, donde encontramos que los pacientes de mayor edad, TAD y aquellos con SM presentaron mayor prevalencia de 65.66% de Pre diabetes y diabetes.

10.

El sistema ADASIR: una experiencia cubana de aprendizaje sobre accidentes y fomento de la cultura de seguridad radiológica
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Ferro Fernández, Rubén

; Ilizástigui Perez, Fidel

; de la Fuente Puch, Andrés

Nucleus

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dec 2010, N. 48 Pages 37 - 41

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT The Cuban Regulatory Authority is carrying out a National Program intended to foster and develop a Safety Culture taking into account the wide recognition of the human factors contribution to radiological events. The program includes the introduction of new regulatory practices and initiatives in order to increase the safety culture in Cuban facilities. The most recent of those initiatives is the System for Radiological Event Analysis, Dissemination and Learning, called ADASIR (acronym for the System’s name in Spanish). The main purpose of this system is to provide a better understanding and knowledge of any radiological event reported both in the country and abroad, thus reducing the possibility of occurrence of a similar event in our facilities. A team of regulatory and external experts make together a detailed review of all available information on the event and identify possible root causes, failed barriers and other important data of national interest. The results of such review are documented and sent to any Cuban facilities or organizations where these events can occur, considering the equipment and practices they have. The document includes an specific checklist which could be used by the facilities to make a self-assessment and evaluate their strength and weakness to similar events. This paper presents the main characteristics and results of this new experience of Cuban Regulatory Authority.

RESUMEN La Autoridad Reguladora de Cuba lleva a cabo un programa de fomento y desarrollo de la cultura de seguridad radiológica en el país dada la reconocida contribución que tiene el factor humano en la ocurrencia de sucesos radiológicos. El programa incluye nuevas prácticas e iniciativas reguladoras para elevar el nivel de cultura de seguridad en Cuba como la reciente implementación de un método de trabajo denominado Sistema de Análisis, Diseminación y Aprendizaje de Sucesos e Incidentes Radiológicos (ADASIR), cuyo objetivo es incrementar el conocimiento sobre los sucesos ocurridos dentro o fuera del país para evitar su repetición en el territorio nacional. Expertos nacionales y de la Autoridad Reguladora realizan un pormenorizado análisis de esos eventos, identificando posibles causas raíces, barreras falladas y otros datos de interés nacional. Los resultados del debate son documentados y enviados a entidades, autoridades y organizaciones profesionales acompañados de una lista de chequeo para la autoevaluación institucional. El presente trabajo expone en detalle las características y los resultados de esta novedosa experiencia de la Autoridad Reguladora cubana.

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11.

Agenesia en dentición permanente
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Diaz-Perez, Raul

; Echaverry-Navarrete, Ruben A

Revista de Salud Pública

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dec 2009, Volume 11 N. 6 Pages 961 - 969

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Objetivo Determinar la frecuencia de agenesia dental en dentición permanente. Materiales y Métodos Se incluyeron 112 pacientes que acudieron al servicio de imagenología de la Facultad de Odontología, Universidad Nacional Autónoma de México, de enero a julio del 2008, mayores de 13 años, sin extracciones dentales ni síndromes genéticos, a quienes se les tomó ortopantomografía. Se registraron variables sociodemográficas y antecedentes familiares de agenesia dental. La información se procesó en SPSS 15,0. Se utilizó estadística descriptiva para determinar la frecuencia de agenesia. Para evaluar la asociación de agenesia con sexo, antecedente familiar, y línea familiar se usó X2. Resultados En el grupo estudiado el 53 % fueron mujeres, la media de edad fue 22±4,7 años. El 26 % presentó agenesia, 21,4 % tuvo agenesia de al menos un tercer molar, el 4,5 % mostró agenesia de otros dientes. Las líneas familiares paterna y materna mostraron proporciones similares. Agenesia dental y sexo son independientes X2=0,881, p=0,348. Antecedente familiar y línea familiar mostraron asociación significativa, p<0,001. Conclusiones La proporción global de agenesia dental fue de 26 %. El sexo y agenesia dental son independientes. Los antecedentes familiares de agenesia se asocian significativamente a la agenesia dental.

Objective This study was aimed at determining the prevalence of dental agenesis in permanent dentition. Materials and Methods A group of 112 patients who came to UNAM’s Dental School imaging department from January to July 2008 were included in the study. The patients had to be over 13 years old, having had no dental extractions or genetic syndromes. A panoramic radiography was taken of each of them. Sociodemographic variables and family history of dental agenesis were recorded. SPSS 15.0 was used for processing the information. Descriptive statistics were used for determining agenesis frequency; X2 was used for assessing agenesis association with gender, family history and family line. Results 53 % of the group being studied were female; mean age was 22±4.7. 26 % of the patients presented dental agenesis (21.4 % of at least one third molar, 4.5 % presented other tooth agenesis). Both paternal and maternal family lines had similar percentages regarding a background of agenesis. Dental agenesis and sex were independent (X2=0.881; p=0.348). Family history and family line showed a significant association (p<0.001). Conclusions There was 26 % overall dental agenesis. Gender and dental agenesis were independent. A family background of agenesis was significantly associated with dental agenesis.

4777 downloads Cited 1 time in SciELO

12.

Agenesia en dentición permanente
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Diaz-Perez, Raul

; Echaverry-Navarrete, Ruben A.

Revista de Salud Pública

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dec 2009, Volume 11 N. 6 Pages 961 - 969

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Objective This study was aimed at determining the prevalence of dental agenesis in permanent dentition. Materials and Methods A group of 112 patients who came to UNAM's Dental School imaging department from January to July 2008 were included in the study. The patients had to be over 13 years old, having had no dental extractions or genetic syndromes. A panoramic radiography was taken of each of them. Sociodemographic variables and family history of dental agenesis were recorded. SPSS 15.0 was used for processing the information. Descriptive statistics were used for determining agenesis frequency; X2 was used for assessing agenesis association with gender, family history and family line. Results 53 % of the group being studied were female; mean age was 22±4.7. 26 % of the patients presented dental agenesis (21.4 % of at least one third molar, 4.5 % presented other tooth agenesis). Both paternal and maternal family lines had similar percentages regarding a background of agenesis. Dental agenesis and sex were independent (X2=0.881; p=0.348). Family history and family line showed a significant association (p<0.001). Conclusions There was 26 % overall dental agenesis. Gender and dental agenesis were independent. A family background of agenesis was significantly associated with dental agenesis.

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13.

ESTUDIO EXPERIMENTAL DEL SECADO DE RENOVALES DE CANELO DRIMYS WINTERI
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PEREZ, Patricio

; ANANIAS, Rubén A

; HERNANDEZ, Gonzalo

Maderas. Ciencia y tecnología

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2007, Volume 9 N. 1 Pages 59 - 70

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

In this paper the wood drying schedules at conventional temperatures of Drimys winteri re-growths are studied. The experimental design includes as variables the drying schedules (2) and the wood thickness (2). Six drying runs at pilot scale are performed in a 0.3 m³ capacity laboratory dry kiln. The wood drying quality, being based on European standards is evaluated, considering moisture homogeneity, moisture gradient, casehardening, collapse, surface and internal checking. The drying defects are evaluated applying Chilean standards. The results show that the proposed drying schedules allow a satisfactory drying of canelo re-growths. The behaviour of the canelo re-growths during the drying are conditioned by the wood quality before the drying, and the initial moisture content

En este trabajo se estudian programas de secado artificial a temperaturas convencionales para madera aserrada de renovales de canelo Drimys winteri. El diseño experimental incluye el programa de secado (2) y el espesor de la madera (2). Seis ensayos de secado a la escala piloto son ejecutados en un horno convectivo de 0.3 m³. Se evalúa la calidad final de la madera, basándose en standarizaciones europeas, considerando la homogeneidad y el gradiente de humedad final, las tensiones de secado y el colapso, las grietas superficiales e internas. Los alabeos del secado se evalúan aplicando las normas chilenas. Los resultados muestran que los programas de secado que se estudian permiten secar satisfactoriamente los renovales de canelo. El comportamiento de los renovales frente al secado es condicionado por la calidad de la madera a secar y el contenido de humedad inicial de la madera verde

4969 downloads Cited 3 times in SciELO

14.

Signal transduction in lemon seedlings in the hypersensitive response against Alternaria alternata: participation of calmodulin, G-protein and protein kinases
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ORTEGA, XIMENA

; POLANCO, RUBÉN

; CASTAÑEDA, PATRICIA

; PEREZ, LUZ M

Biological Research

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2002, Volume 35 N. 3-4 Pages 373 - 383

Abstract: En | Text: En | PDF: En

The development of an effective hypersensitive response (HR) in any plant system relies, not only in their gene composition and expression, but also on an effective and rapid signal transduction system. Lemon seedlings induce the phenylpropanoid pathway, which results in the de novo biosynthesis of the phytoalexin scoparone, as part of the hypersensitive response against Alternaria alternata. In order to elucidate some of the signaling elements that participate in the development of HR in lemon seedlings, we used several compounds that are known as activators or inhibitors of signal transduction elements in plants or in animal cells. Lemon seedlings treated either with cholera toxin or with phorbol 12-myristate 13-acetate (PMA), in the absence of A. alternata induced phenylalanine ammonia-lyase (PAL, E. C. 4.3.1.5) and the synthesis of scoparone, suggesting the participation of a G-protein and of a serine/threonine kinase, respectively, in signal transduction. The use of trifluoperazine (TFP), W-7, staurosporine, lavendustin A or 2,5dihydroximethyl cinnamate (DHMC) prevented PAL induction as well as scoparone biosynthesis in response to the fungal inoculation, thus allowing us to infer the participation of Calmodulin (CaM), of serine/threonine and of tyrosine protein kinases (TPK) for signal transduction in Citrus limon in response to A. alternata

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15.

Sylvatic population of Triatoma infestans from the Bolivian Chaco: from field collection to characterization
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Noireau, François

; Bastrenta, Brigitte

; Catalá, Silvia

; Dujardin, Jean-Pierre

; Panzera, Francisco

; Torres, Magdalena

; Perez, Ruben

; Galvão, Cleber

; Jurberg, José

Memórias do Instituto Oswaldo Cruz

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2000, Volume 95 Suppl. 1 Pages 119 - 122

Abstract: En | Text: En | PDF: En

A sylvatic Triatoma infestans DM (dark morph) population detected in the Bolivian Chaco was characterized and compared with various domestic ones. The degree of differentiation of DM was clearly within the T. infestans intra-specific level. Nevertheless marked chromatic and morphometric differences as well as differences in antennal pattern, chromosome banding and randomly amplified polymorphic DNA support the hypothesis of a distinct population. Continuous exchange of insects between wild and domestic habitats seems unlikely in the Chaco.

2051 downloads Cited 7 times in SciELO

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