Alteraciones genéticas asociadas a la enfermedad de Parkinson y Alzheimer: evolución y respuesta al tratamiento / Genetic Alterations Associated with Parkinson's and Alzheimer's Disease: Evolution and Response to Treatment

La enfermedad de Parkinson y Alzheimer son las enfermedades neurodegenerativas más frecuentes a nivel mundial. Tienen etiología multifactorial, entre ellas, la genética; y son motivo de interés en la investigación científica actual. Se realizó una revisión narrativa con el objetivo de determinar las alteraciones genéticas asociadas a estas patologías, además su influencia en la evolución y respuesta al tratamiento de ellas. Se consultaron artículos originales, revisiones bibliográficas, sistemáticas, metaanálisis en inglés y español, con fecha de publicación entre el 1 enero de 2018 y el 20 de mayo de 2023, en bases como PubMed y Medline. Se utilizaron los términos MeSH «Alzheimer Disease¼, «Parkinson Disease¼, «Drug Therapy¼ y «Mutations¼. El riesgo hereditario para la enfermedad de Parkinson suele ser poligenético, sin embargo, existen genes relacionados con mutaciones monogénicas. Se identifican alteraciones en genes de α-sinucleína, glucocerebrosidasa y quinasa 2 rica en leucina que se relacionan con mayor riesgo de desarrollar Parkinson, además de variaciones en el cuadro clínico y edad de inicio de síntomas. En cuanto a la enfermedad de Alzheimer, las alteraciones en los genes de la proteína precursora amiloide, presenilina 1 y 2 se relacionan con la forma familiar de la enfermedad; por otra parte, las de apolipoproteína E4 se han identificado en la forma esporádica, por lo que se consideran como el factor de riesgo genético más importante para su desarrollo

Parkinson's and Alzheimer's are the most frequent neurodegenerative diseases worldwide. They have a multifactorial etiology, including genetics, and are of interest in current scientific research. A narrative review was carried out with the aim of determining the genetic alterations associated with these pathologies, as well as their influence on their evolution and response to treatment. Original articles, literature reviews, systematic reviews, meta-analyses in English and Spanish, with publication date between January 1, 2018 and May 20, 2023, were consulted in databases such as PubMed and Medline. MeSH terms "Alzheimer Disease", "Parkinson Disease", "Drug Therapy" and "Mutation" were used. Hereditary risk for Parkinson's disease is usually polygenetic, however, there are genes related to monogenic mutations. Alterations in α-synuclein, glucocerebrosidase and leucine-rich kinase 2 genes have been identified that are related to an increased risk of developing Parkinson's disease, in addition to variations in the clinical picture and age of symptom onset. As for Alzheimer's disease, alterations in the genes of the amyloid precursor protein, presenilin 1 and 2 are related to the familial form of the disease; on the other hand, those of apolipoprotein E4 have been identified in the sporadic form, and are therefore considered to be the most important genetic risk factor for its development

Linfangiectasia intestinal primaria en síndrome de Klippel-Trénaunay. Manejo anestésico a propósito de un caso / Primary intestinal lymphagiectasia in Klippel-Trénaunay syndrome. Anesthetic management. Case report

Resumen: El síndrome de Klippel-Trénaunay con linfangiectasia intestinal primaria asociada es una entidad de aparición poco frecuente en pediatría. Se presenta con edemas por hipoproteinemia y, en algunos casos, con ascitis. El objetivo es presentar un caso clínico cuyo diagnóstico fue certificado mediante endoscopía intestinal y biopsia. Debido a la ascitis refractaria, el tratamiento fue quirúrgico y se realizó derivación peritoneo venosa. El manejo anestésico de este tipo de pacientes se ha descrito en informes limitados, por lo que en el presente caso hacemos énfasis en la terapia de soporte con perfusión de albúmina como tratamiento sintomático propuesto para pacientes con drenaje masivo de ascitis.

Abstract: Klippel-Trénaunay syndrome with associated primary intestinal lymphangiectasia is a rare entity in pediatrics. It presents with edema due to hypoproteinemia, and in some cases with ascites. The objective is to present a clinical case whose diagnosis was certified by intestinal esdoscopy and biopsy. For refractary ascities, the treatment was surgical, performing peritoneal venous bypass. The anesthetic management of this type of patients has been described in limited reports, so in the present case we emphasize supportive therapy with albumin infusion as the proposed symptomatic treatment for patients with massive drainage of ascities.

Percepción de brechas y oportunidades en eSalud de estudiantes de último año de Medicina en Colombia

Introducción: En los últimos años la explosión de dispositivos con acceso a internet en el mundo ha presentado una oportunidad para el desarrollo de intervenciones en salud. Métodos: Se realizó un estudio observacional transversal de tipo descriptivo; se clasificaron las propuestas de innovación presentadas por estudiantes de último año de medicina como trabajo final de un curso de eSalud. Los proyectos se clasificaron en tres dimensiones: grupo poblacional, problema de salud a resolver y tipo de intervención de salud digital. Resultados: Se analizaron 86 proyectos entre los años 2017 y 2020. El 80,2 % se orienta a la población general, seguidos por la gestante (10,4 %), la infantil (8,14 %) y la geriátrica (1,2 %). El 36 % de los proyectos no mencionaban una condición particular de salud; el 12,8 % se dedicó a la salud sexual y reproductiva; el 10,4 % a las enfermedades cardiovasculares; el 9,3 % a la salud mental y el 4,65 % a aspectos de crecimiento y desarrollo. El 59,3 % de los proyectos se dirigía a apoyar las actividades del prestador de servicios de salud; el 34,9 % estaba orientado hacia las necesidades de los usuarios de los sistemas de salud y el 5,9 % se enfocó en los servicios de datos. Conclusiones: La percepción colectiva de los estudiantes refleja la oportunidad de fortalecer la atención primaria en salud mediante el uso de las tecnologías de la información y las comunicaciones, con énfasis en las poblaciones vulnerables. Los estudiantes empiezan a identificar los servicios de datos como oportunidad de intervención.

Introduction: In recent years, the explosion of devices with Internet access in the world has presented an opportunity for the development of health interventions. Methods: A descriptive cross-sectional observational study was carried out. Innovation proposals submitted by last-year medical students were classified as the final project of an eHealth course. The projects were classified into three dimensions: population group, health problem to be solved, and type of digital health intervention. Results: Eighty-six projects were analyzed from 2017 to 2020. 80.2% were aimed at the general population, followed by pregnant women (10.4%), children (8.14%) and geriatrics (1, 2 %). 36% of the projects did not mention a particular health condition; 12.8% was dedicated to sexual and reproductive health; 10.4% to cardiovascular diseases; 9.3% to mental health and 4.65% to aspects of growth and development. 59.3% of the projects were aimed at supporting the activities of the health service provider; 34.9% were oriented towards the needs of users of health systems and 5.9% focused on data services. Conclusions: The collective perception of the students reflects the opportunity to strengthen primary health care through the use of information and communication technologies, with emphasis on vulnerable populations. Students begin to identify data services as an opportunity for intervention.

Manejo de la vía aérea mediante intubación submental en fracturas maxilofaciales / Airway management by submental intubation in maxillofacial fractures

La intubación submentoniana es útil en procedimientos quirúrgicos en donde la intubación nasotraqueal está contraindicada y la intubación orotraqueal no es ideal debido a la fijación intermaxilar. Este informe describe dos pacientes masculinos que se presentaron al Hospital Nacional Rosales, en el servicio de Cirugía Maxilofacial de El Salvador, con historia de sufrir accidente de tránsito. El primer caso evidenció al examen radiológico fractura simple y desplazada de sínfisis mandibular, fractura simple huesos propios nasales y desviación del tabique nasal. El segundo caso es un paciente con fractura de sínfisis y doble cóndilo mandibular que presentaba imposibilidad a la apertura bucal. A través de la técnica del cirujano maxilofacial Hernández Altemir (España), el tubo endotraqueal atraviesa una incisión extraoral en la región submentoniana del suelo de la boca, para poder practicar reducción abierta de fracturas faciales, logrando adecuada oclusión, con mínimos cuidados posoperatorios y con una cicatriz estética. Al terminar la cirugía, la posición del tubo endotraqueal regresa a su posición original y el paciente evoluciona satisfactoriamente

Submental intubation is useful in surgical procedures where nasotracheal intubation is contraindicated and orotracheal intubation is not ideal due to intermaxillary fixation. This report describes two male patients who presented to the Rosales National Hospital, in the Maxillofacial Surgery service of El Salvador, with a history of suffering a traffic accident. The first case showed a simple and displaced fracture of the mandibular symphysis, simple nasal bone fracture and deviation of the nasal septum on radiological examination. The second case is a patient with a symphysis fracture and a double mandibular condyle that presented an inability to open the mouth. Through the technique of the maxillofacial surgeon Hernández Altemir (Spain), the endotracheal tube passes through an extraoral incision in the submental region of the floor of the mouth, in order to perform open reduction of facial fractures, achieving adequate occlusion, with minimal postoperative care and with an aesthetic scar. At the end of the surgery, the position of the endotracheal tube returns to its original position and the patient evolves satisfactorily

Manifestaciones neurológicas y COVID-19 / Neurological manifestations and COVID-19

El nuevo coronavirus, denominado COVID-19, es un betacoronavirus asociado a síntomas respiratorios que van desde un cuadro respiratorio leve hasta cuadros severos, que implican compromiso de varios órganos blanco como los sistemas pulmonar, renal, cardiovascular, nervioso, de la coagulación y se asocian a diversas complicaciones que ensombrecen el pronóstico. El órgano blanco afectado está determinado por la expresión de receptores para angiotensina II, que además se encuentran en el tejido nervioso, presentes en estructuras vitales en el control cardiorespiratorio. Es así como se han descrito manifestaciones neurológicas en estudios publicados alrededor del mundo que aún no son concluyentes, donde se asocian a una afección directa de las estructuras nerviosas o producto de complicaciones sistémicas

The new coronavirus, called COVID-19, is a beta-coronavirus associated with respiratory symptoms that range from mild to severe respiratory symptoms, which involve involvement of various target organs such as the pulmonary, renal, cardiovascular, nervous, coagulation systems and se associated with various complications that cloud the prognosis. The target organ affected is determined by the expression of receptors for angiotensin II, which are also found in nervous tissue, present in vital structures in cardiorespiratory control. This is how neurological manifestations have been described in studies published around the world that are not yet conclusive, where they are associated with a direct affection of the nervous structures or the product of systemic complications

Influence of ruthenium doping on UV- and visible-light photoelectrocatalytic color removal from dye solutions using a TiO2 nanotube array photoanode.

The photocatalytic activity of TiO2 anodes was enhanced by synthesizing Ru-doped Ti|TiO2 nanotube arrays. Such photoanodes were fabricated via Ti anodization followed by Ru impregnation and annealing. The X-ray diffractograms revealed that anatase was the main TiO2 phase, while rutile was slightly present in all samples. Scanning electron microscopy evidenced a uniform morphology in all samples, with nanotube diameter ranging from 60 to 120 nm. The bias potential for the photoelectrochemical (PEC) treatment was selected from the electrochemical characterization of each electrode, made via linear sweep voltammetry. All the Ru-doped TiO2 nanotube array photoanodes showed a peak photocurrent (PP) and a saturation photocurrent (SP) upon their illumination with UV or visible light. In contrast, the undoped TiO2 nanotubes only showed the SP, which was higher than that reached with the Ru-doped photoanodes using UV light. An exception was the Ru(0.15 wt%)-doped TiO2, whose SP was comparable under visible light. Using that anode, the activity enhancement during the PEC treatment of a Terasil Blue dye solution at Ebias(PP) was much higher than that attained at Ebias(SP). The percentage of color removal at 120 min with the Ru(0.15 wt%)-doped TiO2 was 98% and 55% in PEC with UV and visible light, respectively, being much greater than 82% and 28% achieved in photocatalysis. The moderate visible-light photoactivity of the Ru-doped TiO2 nanotube arrays suggests their convenience to work under solar PEC conditions, aiming at using a large portion of the solar spectrum.

Metabolic syndrome in rheumatoid arthritis patients: Relationship among its clinical components.

BACKGROUND: Metabolic syndrome (MetS) prevalence in rheumatoid arthritis (RA) patients is known to vary considerably across the world. This study aimed to determine the prevalence of MetS in RA patients from western Mexico and to analyze the interrelation of the MetS components with the clinical variables of RA. METHODS: This case-control study included 216 RA patients and 260 control subjects (CS). MetS prevalence was determined according to the NCEP/ATP III and the Latin American Consensus of the Latin American Diabetes Association (ALAD) criteria. RESULTS: MetS was observed in 30.6% RA patients and 33.3% of controls (p > 0.05) according to NCEP/ATP III and 28.7% in RA patients and 31.1% for controls using ALAD criteria. Total cholesterol, LDL-C, and Castelli's I-II indexes were lower in RA (p < 0.001) than in CS. The RA patients with MetS had more swollen joints than those without MetS (p = 0.018). In RA patients with MetS, DAS-28 score correlated with smoking index (rho = 0.4601, p = 0.0004) and VLDL-C (rho = 0.3108, p = 0.0056); similarly, rheumatoid factor (RF) correlated with age (rho = 0.2031, p = 0.0027), smoking index (rho = 0.3404, p < 0.0001), triglycerides (rho = 0.1958, p = 0.0039), and VLDL-C (rho = 0.1761, p = 0.0162). CONCLUSIONS: The MetS prevalence in RA patients from western Mexico is not higher than controls; however, in RA patients with MetS, some inflammatory markers are associated with MetS components; thus, the control of MetS in RA could be beneficial to regulate disease activity.

Aplicaciones clínicas de doppler transcraneal en neurología y cuidados neurocríticos / Doppler clinical applications transcranial in neurology and care neurocritical

En la actualidad el ultrasonido permite obtener en forma no invasiva imágenes de la mayoría de estructuras. A nivel cerebral, se puede acceder a la vasculatura y evaluar la hemodinamia. Es un estudio seguro, no utiliza radiación y se puede realizar a la cabecera del paciente, las veces necesarias, hasta en monitoreo continuo. La limitación es que necesita un operador y cerca del 5-20 % de las personas poseen ventanas óseas temporales poco accesibles, por el grosor del hueso. Durante la realización del Doppler transcraneal, se debe seguir una serie de pasos. Tras localizar los vasos esperados, según la ventana y profundidad, se siguen las ondas espectrales en al menos dos puntos en cada arteria y se miden las velocidades de cada una. El objetivo de esta revisión es describir las generalidades del doppler transcraneal y destacar las principales utilidades como herramienta diagnóstica en enfermedades cerebrovasculares y otras enfermedades neurológicas.

At present, ultrasound allows images of most structures to be obtained non-invasively. At the brain level, the vasculature can be accessed and hemodynamics evaluated. It is a safe study, it does not use radiation and it can be performed at the patient's bedside, as often as necessary, even under continuous monitoring. The limitation is that it requires an operator and about 5-20% of people have temporary bone windows that are not very accessible, due to the thickness of the bone. During the performance of the transcranial Doppler, a series of steps must be followed. After locating the expected vessels, according to the window and depth, the spectral waves are followed at at least two points in each artery and the velocities of each one are measured. The objective of this review is to describe the generalities of transcranial doppler and highlight the main uses as a diagnostic tool in cerebrovascular diseases and other neurological diseases.

Severidad de la afasia y condición funcional en pacientes con ictus / Ictus phasia severity and functional status in patients with stroke

Introducción: la afasia constituye una secuela altamente incapacitante del ictus, que consta de variabilidad en su grado de severidad. Objetivo: evaluar la severidad de la afasia como secuela, y la repercusión sobre la condición funcional. Material y métodos: se realizó un estudio observacional de tipo transversal, de 60 pacientes con diagnóstico de ictus, con 1 año o más de evolución, todos con afasia. La afasia se clasificó según carácter lenguaje de la Escala Escandinava del ictus. Se conformaron tres grupos y se determinó el grado de discapacidad funcional de cada grupo utilizando la escala de Rankin y el índice de Barthel. Se utilizó estadística descriptiva para caracterizar la muestra. Se utilizó una prueba t no pareada y test de correlación de matrices para identificar asociación entre variables. Se consideró como significativo todo valor p < 0,05. Resultados: predominaron los pacientes con afasia severa. Con el uso de índice de Barthel se identificó mayor compromiso funcional para de Rankin, independientemente de la severidad de la afasia, todos los pacientes mostraron incapacidad moderada e incapacidad moderadamente severa (p<0.05). El Índice de Barthel fue la escala más sensible para determinar el grado de compromiso funcional, según severidad de la afasia. Conclusión: predominaron los pacientes con afasia severa. La severidad de la afasia constituye un factor agravante de la condición funcional en pacientes con ictus de 1 año o más tiempo de evolución.

Modelling of Behavior for Inhibition Corrosion of Bronze Using Artificial Neural Network (ANN).

In this work, three models based on Artificial Neural Network (ANN) were developed to describe the behavior for the inhibition corrosion of bronze in 3.5% NaCl + 0.1 M Na2SO4, using the experimental data of Electrochemical Impedance Spectroscopy (EIS). The database was divided into training, validation, and test sets randomly. The parameters process used as the inputs of the ANN models were frequency, temperature, and inhibitor concentration. The outputs for each ANN model and the components in the EIS spectrum (Zre, Zim, and Zmod) were predicted. The transfer functions used for the learning process were the hyperbolic tangent sigmoid in the hidden layer and linear in the output layer, while the Levenberg-Marquardt algorithm was applied to determine the optimum values of the weights and biases. The statistical analysis of the results revealed that ANN models for Zre, Zim, and Zmod can successfully predict the inhibition corrosion behavior of bronze in different conditions, where what was considered included variability in temperature, frequency, and inhibitor concentration. In addition, these three input parameters were keys to describe the behavior according to a sensitivity analysis.

Healthcare program for sex workers: a public health priority.

OBJECTIVE: The objective of this study was to propose a model of health care for sexual workers (SWs) and transvestites (Ts) groups who were historically excluded from health services. MATERIALS AND METHODS: A prospective descriptive/analytical study with an intervention stage was performed, focusing on the health status of SWs and Ts. Access to health system, inclusion into social programs, beneficiaries' participation, and rate of risk behaviors were variables measured before and after intervention that consist in a program based on promotion/prevention activities and complete health care service suitable to SW-T needs. RESULTS: Nine hundred and fifty SW-Ts were included. At baseline, 99.7% lacked health insurance and 90.1% had no access to the health care. These data were compared with those obtained after attention quadruplicated among SW because of the implementation of the program. Risky sexual behaviors were reduced by 25 times. SWs have their own leader of health institutions and coordinate themselves with the program's activities. CONCLUSION: Responsibility of the state's authorities on vulnerable groups must focus on their inclusion. To this end, health services must adapt themselves in order to attend those community groups with special needs. Active participation of the target population contributes to viability of this type of proposals, and it is essential for the project's success.

Evolution of morphological traits in Verbenaceae.

PREMISE OF THE STUDY: A new infrafamilial circumscription of the Verbenaceae with eight tribes: Casselieae, Citharexyleae, Duranteae, Lantaneae, Neospartoneae, Petreeae, Priveae, and Verbeneae, has been recently proposed, on the basis of molecular phylogenetic studies. Two genera, Dipyrena and Rhaphithamnus, remain unplaced. The aim of this work is to reconstruct the evolutionary history of morphological characters traditionally employed in the classification of the Verbenaceae, with special attention to tribes Verbeneae and Lantaneae. METHODS: Twenty-one characters, related to habit and vegetative morphology, inflorescence and floral morphology, ovary and fruit morphology, as well as chromosome number, were optimized over a molecular phylogeny of Verbenaceae. KEY RESULTS: All tribes are supported by at least one morphological trait except tribes Duranteae and Citharexyleae. Suffrutescent habit, sessile flowers, and four cluses are synapomorphies for tribe Verbeneae. Gynoecium with short style and entire stigma are synapomorphic traits for tribe Lantaneae. Sessile flowers and unicarpellate ovaries are morphological synapomorphies for the new tribe Neospartoneae. Suffrutescent habit is a synapomorphic trait for tribe Priveae. Homothetic pleiobotrya and absence of the adaxial staminode are synapomorphic traits for tribe Casselieae. Undivided fleshy fruits are probably a synapomorphic trait for tribe Petreeae. Putative plesiomorphies for the ancestor of the Verbenaceae are discussed as well as synapomorphic traits within other Verbenaceae clades. CONCLUSIONS: Many of the characters traditionally employed in classification have proven to be very homoplastic, or have been shown not to support relationships within the family. Moreover, traditional assumptions concerning character polarity have in some cases been shown to be incorrect.

Enhanced sonochemical degradation of azure B dye by the electroFenton process.

The degradation of azure B dye (C15H16ClN3S; AB) has been studied by Fenton, sonolysis and sono-electroFenton processes employing ultrasound at 23 kHz and the electrogeneration of H2O2 at the reticulated vitreous carbon electrode. It was found that the dye degradation followed apparent first-order kinetics in all the degradation processes tested. The rate constant was affected by both the pH of the solution and initial concentration of Fe2+, with the highest degradation obtained at pH between 2.6 and 3. The first-order rate constant decreased in the following order: sono-electroFenton>Fenton>sonolysis. The rate constant for AB degradation by sono-electroFenton is ∼10-fold that of sonolysis and ∼2-fold the one obtained by Fenton under silent conditions. The chemical oxygen demand was abated ∼68% and ∼85% by Fenton and sono-electroFenton respectively, achieving AB concentration removal over 90% with both processes.

Perfil manométrico anorrectal en pacientes con constipación crónica asociada a ciego móvil / Anorectal manometric profile in patients presenting with chronic constipation associated with a mobile cecum

Introducción: La constipación constituye un serio problema de salud que afecta a millones de personas en el mundo. La manometría anorrectal realiza una valoración objetiva de la dinámica del segmento anorrectal para el diagnóstico de la constipación, la incontinencia anal, etc. Desde 1989, quedó demostrado que el ciego móvil causa alteraciones orgánicas del colon que conducen a la constipación crónica. Objetivo: Determinar, mediante manometría, la existencia de un patrón común, reproducible, que puede favorecer el diagnóstico de constipación crónica asociada a ciego móvil. Métodos: Se realizó una investigación descriptiva en 90 pacientes, 40 niños y 50 adultos, entre los años 2006 y 2009, en el Instituto de Gastroenterología, todos con diagnóstico de constipación crónica rebelde a tratamiento convencional, a los cuales se les efectuó estudio radiológico específico de colon por ingestión de bario, como Patrón Oro para diagnosticar ciego móvil. Se les realizó manometría anorrectal con un PC Polygraf HR, mediante un sistema de catéteres de perfusión continua y los registros fueron evaluados en una computadora con programa de análisis. Se encontró que la presión de reposo del esfínter anal interno fue X= 79,6 mmHg para el grupo niños con 65,8 por ciento de relajación para el reflejo recto-anal inhibitorio. En los pacientes adultos, la presión del esfínter anal interno fue de X= 80,9 mmHg y 68,2 por ciento de relajación del esfínter anal interno. La presión de contracción del esfínter anal externo, la longitud del canal anal y la sensibilidad rectal fueron normales en ambos grupos. Se demostró un patrón común y reproducible con hipertonía del esfínter anal interno y un déficit de relajación dado por un reflejo recto-anal inhibitorio incompleto en 94 por ciento de los casos. Conclusión: Se estableció relación entre estos hallazgos y la posible disminución en la transportación de los neurotransmisores inhibitorios...

Introduction: Constipation is a serious health problem affecting to millions of persons at world level. The anorectal manometry makes an objective assessment of the rectoanal segment dynamics for constipation diagnosis, the anal incontinence, etc. From 1989, it was demonstrated that the mobile cecum provoke organic alterations of colon leading to chronic constipation. Objective: To determine by manometry, the existence of a common and reproducible pattern favoring the diagnosis of mobile cecum-associated chronic constipation. Methods: A descriptive research was conducted in 90 patients (40 children, 50 adults) between 2006 and 2009 in the Institute of Gastroenterology all of them diagnosed with chronic constipation refractory to conventional m treatment, as well as a barium-meal specific radiologic colon study as Gold Standard to diagnose presence of mobile cecum. A anorectal manometry was carried out using a PC Polygraf HR, by a catheter system of continuous perfusion and registries were assessed in a computer with analysis program. It was found that the rest pressure of internal anal sphincter was of X = 79,6 mm Hg for the group of children with a 65,8 percent of relaxation for the inhibitory rectoanal reflex. In adult patients, the pressure of internal anal sphincter was of X= 80,9 mm Hg and a 68,2 percent of relaxation of internal anal sphincter. The pressure of contraction of external anal sphincter, the anal canal length and the rectal sensitivity were normal in both groups. There was a common and reproducible pattern with hypertonicity of internal anal sphincter and a relaxation deficit due to an incomplete inhibitory rectoanal reflex in the 94 percent of cases. Conclusion: There was a relation among these findings and the potential decrease in transportation of the inhibitory neurotransmitters produced as consequence of the mobile cecum leading to a chronic constipation

Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization.

Eryngium L. (Umbelliferae) is a large genus including more than 250 species worldwide. The large morphological variability in this genus makes it difficult to delimit the species or to establish phylogenetic relationships. The occurrence of different ploidy levels within the genus might indicate a hybrid origin of the polyploid species. In the present study, the chromosome number and karyotype of E. regnellii are reportedfor the first time and the ploidy level of a population of E. paniculatum is confirmed. We compare the genomes of the diploids E. horridum and E. eburneum, the tetraploids E. megapotamicum and E. regnellii, and the hexaploids E. pandanifolium (as a representative of the whole pandanifolium complex) and E. paniculatum using genomic in situ hybridization (GISH). Although it was not possible to identify the parental species of the polyploid taxa analyzed, the GISH technique allowed us to postulate some hypotheses about their origin. Eryngium horridum and E. eburneum do not seem to be the direct progenitors of the polyploids analyzed. On the other hand, it seems that other diploid species unrelated to E. horridum and E. eburneum are involved in their origin. Our results are consistent with morphological and phylogenetic studies, indicating a close relationship between the species of the series Latifolia.

Perfiles motivacionales y diferencias en variables afectivas, motivacionales y de logro / Motivational profiles and differences in affective, motivational and achievement variables

En este trabajo se pretende identificar si existen combinaciones de múltiples metas que dan lugar a diferentes perfiles motivacionales. La muestra está integrada por 1924 estudiantes universitarios. A través del análisis de conglomerados se han identificado seis perfiles motivacionales. Los resultados indican que el perfil motivacional que engloba a los estudiantes que están motivados para aprender, pero también para conseguir mejores resultados que los demás y para evitar dar una mala imagen ante ellos, son los que informan de un mejor rendimiento académico y los que creen también tener un nivel más alto de conocimientos en las materias académicas que están cursando. Por otro lado, los estudiantes con un perfil motivacional orientado al aprendizaje son los que hacen una valoración más alta de las tareas, los que tienen un mayor grado de control sobre su proceso de aprendizaje, y los que tienen unos niveles más bajos de ansiedad.

The purpose of this work is to identify whether there are combinations of multiple goals that lead to different motivational profiles. The sample is made up of 1924 university students. By means of cluster analysis, six motivational profiles were identified. The results indicate that the motivational profile that comprises students who are motivated to learn, but also to achieve better results that the rest and to avoid making a bad impression on them are the students who report better academic achievement and also the students who believe they have a higher level of knowledge in the academic subjects they are studying. However, students with a learning oriented motivational profile value the tasks more, have more control over their learning process, and have lower levels of anxiety.

Clinical, cytogenetic, and molecular characterization of a girl with some clinical features of Down syndrome resulting from a pure partial trisomy 21q22.11-qter due to a de novo intrachromosomal duplication.

We report a girl with a de novo pure partial trisomy 21 with some clinical features of Down syndrome. The girl patient presented a flat broad face, brachycephaly, and a flat nasal bridge. She also had upwardly slanted palpebral fissures, epicanthal folds, blepharitis, brushfield spots, and strabismus. Her mouth was wide with downturned corners, prominent lower lip, narrow and furrowed tongue, and short palate. G-banded chromosomal analysis of metaphases in cells from both skin and blood showed a 46,XX karyotype with additional chromosomal material on the distal short arm of one chromosome 21. Parental chromosomes were normal. Molecular analyses with the short-tandem-repeat (STR) marker D21S2039 (interferon-alpha/beta receptor [IFNAR]) (21q22.1) showed a triallelic pattern. Subtelomeric fluorescent in situ hybridization (FISH) analyses, LSI 13 (retinoblastoma 1 [RB1])/LSI 21(21q22.13-q22.2), and whole chromosome painting probes specific for chromosome 21 showed trisomy for the segment 21q22.13-21q22.2 due to a de novo intrachromosomal duplication. A 500K SNP microarray analysis was then performed and revealed a 13-Mb duplication of 21q22.11-qter. This duplicated material had been translocated onto the end of the "p" arm of one of the chromosome 21s. The karyotype was provisionally defined as 46,XX,add(21)(p12).ish der (21)t(21;21)(p12;q22.11)(WCP21q+,PCP21q++,D215259/D21S341/D21S342++)dn. At the age of 4 years and 10 months, a comprehensive psychological examination was performed and the diagnostic criteria for mental retardation were not fulfilled. In comparison with previously published cases of pure partial trisomy 21, this is a rare finding. Additional studies of such rare patients should aid in the study of the pathogenesis of Down syndrome.

Chlorbromuron urea herbicide removal by electro-Fenton reaction in aqueous effluents.

The removal of low concentration of chlorbromuron herbicide in aqueous systems was carried out by electro-Fenton process comprised of three-electrode divided and undivided cell with a reticulated vitreous carbon cathode and platinum anode. The electro-Fenton was also carried out in a two-electrode undivided cell in which ferrous ion forms from a sacrificial iron anode. It was observed that the total organic carbon (TOC) removal efficiency was influenced by the cell voltage, the pH of the solution and initial herbicide concentration during the electro-Fenton treatment with a stainless steel anode. The Fe(2+)/Fe(3+) activity in the Fenton chemistry (regardless if it is hydroxyl radical or ferryl ion) was improved by the electrochemical catalysis leading to a TOC analysis below the detection limit (0.2 mg l(-1)) corresponding to a TOC removal over 98%. It was found that TOC removal during chlorbromuron degradation followed apparent first order kinetics. The rate constant was increased by decreasing the initial concentration of chlorbromuron.

El embarazo adolescente entre 10 a 19 años de edad y los nietos de bajo peso al nacer asi stidos en el Hospital Materno Infantil San Roque de la ciudad de Paraná, provincia de Entre Ríos, durante el periodo comprendido entre el 1 de enero y el 31 de diciembre del año 2008 / Teenage pregnancy between 10-19 years of age and grandchildren of low birth weight so stidos Maternity Hospital in San Roque in the city of Parana, Entre Rios province, during the period from January 1 to 31 December 2008

Objetivo: El objetivo fue determinar la relación que existe entre el embarazo adolescente entre los 10 y 19 años de edad y los niños de bajo peso al nacer. Material y métodos: Se realizó un estudio retrospectivo, de tipo caso-control; la muestra fue de 30 pacientes embarazadas adolescentes entre 10 y 19 años de edad con niños de bajo peso al nacer e igual número de controles en madres de entre 20 y 40 años y más. El trabajo se llevó a cabo en el Servicio de Obstetricia del Hospital Materno Infantil San Roque de la ciudad de Paraná, Provincia de Entre Ríos, entre los meses del 1° enero al 31 de diciembre de 2008. Resultados : Se estudiaron deferentes variables y se encontró que en Las adolescentes predominaron los niños de bajo peso, ocurrieron mayor cantidad de partos distócicos por cesáreas debido a causas como: desproporción cefalo pelvicas, sufrimiento fetal agudo y a la inducción fallida, en relación con la edad gestacional predominaron los partos prematuros, las enfermedades patológicas maternas que se evidenciaron fueron las hipertensivas, en relación a lagestación previa hubo mayor cantidad de adolescentes que tenían su primera gestación, la mayoría de las adolescentes de esté estudio eran de está ciudad, solo se comprobó que hubo derivaciones del interior de la provincia cuandoeran por alguna complicación en el trabajo de parto y que en el interior no contaban con los recursos necesarios para su atención.