Prevalence of alcohol, tobacco, and illicit drugs consumption during teenage pregnancy: an observational, prospective, and cross-sectional study / Prevalencia del consumo de alcohol, tabaco y drogas ilícitas durante el embarazo en adolescentes: un estudio observacional, prospectivo y transversal

Abstract Background: Teenage pregnancy is a significant public health issue in Mexico; its prevalence oscillates around 20% of all pregnancies. Concurrently, alcohol, tobacco, and illicit drug use have become more common in this age group. Methods: To estimate the prevalence of substance exposure in a population of pregnant teenagers, we conducted a prospective, observational, and cross-sectional study. The protocol was approved by the institutional review board. On informed consent, we asked 420 consecutive pregnant youngsters cared for at the outpatient obstetric service of a tertiary public regional women´s and children´s hospital in Nuevo León, in northeast Mexico, to answer a previously validated questionnaire to estimate the prevalence of alcohol, tobacco, or illicit drugs use during pregnancy. Results: Of the 420 participants, 317 (75.5%) consumed at least one substance during pregnancy. Alcohol, either alone or in combination, was consumed by 300 (71.7%) participants. Tobacco was used by 117 (27.8%) participants, almost always in combination with other substances, while marijuana and other illicit drugs were consumed by 92 (21.9%) participants. Approximately one-fourth of the participants, 102 (24.1%) reported no substance use during pregnancy. Conclusions: In this series, the reported prevalence of alcohol, tobacco, and illicit drugs consumption during pregnancy, explored with a validated instrument, is higher than that previously reported in our country. This fact offers a worrying picture of another set of factors adding to the burden of teenage pregnancy.

Resumen Introducción: El embarazo en la adolescencia ha adquirido gran importancia en la salud pública en México; su prevalencia oscila alrededor del 20% de los embarazos. Paralelamente, el consumo de alcohol, tabaco y drogas ilícitas en este periodo es cada vez más común en estas jóvenes. Métodos: Para estimar la prevalencia de exposición a estas substancias en adolescentes embarazadas, se llevó a cabo un estudio prospectivo, observacional y transversal. El protocolo fue aprobado por los Comités de Ética e Investigación. Previo consentimiento informado, se solicito a 420 jóvenes embarazadas atendidas en la clínica prenatal del hospital materno-infantil más grande en Nuevo León, que respondieran un cuestionario previamente validado para estimar la prevalencia del consumo de substancias. Resultados: De 420 participantes, 317 (75.5%) consumieron al menos una de estas sustancias durante el embarazo. El alcohol, solo o en combinación, fue consumido por 300 (71.5%). El tabaco fue usado por 117 (27.8%), casi siempre en combinación con otras sustancias, mientras que la mariguana y otras drogas ilícitas fueron consumidas por 92 (21.9%) participantes. Alrededor de una cuarta parte del grupo estudiado (24.1%) reportó no haber consumido ninguna de estas substancias en su embarazo. Conclusiones: En nuestra serie, la prevalencia de consumo de alcohol, tabaco y drogas ilícitas durante el embarazo, explorada con un instrumento validado, es mayor de la reportada en estimaciones previas en nuestro país. Estos datos ofrecen un panorama preocupante de una serie de factores que se agregan a la carga del embarazo en la adolescencia.

Attitudes towards childcare practices in rural and urban caregivers with high rates of multidimensional poverty

Objective: To analyse the relationship between poverty and attitudes towards childcare practices in rural and urban areas of Colombia. Method: This article presents a cross-sectional correlational study conducted in the department of Atlántico, northern Colombia. Attitudes towards childcare and living conditions were assessed among 1189 caregivers of preschool children. The multidimensional poverty index and the participants' area of origin (urban or rural) were considered. Results: No direct relationship was found between attitudes towards childcare and the multidimensional poverty index. However, it was observed that urban participants from deprived areas had a higher poverty index and less positive attitudes towards childcare, especially regarding cognitive, sleep and health care. There was a moderating effect of area on attitudes towards childcare. Conclusions: The study highlights the influence of poverty and social vulnerability on attitudes towards childcare, particularly in urban areas. These findings underline the importance of considering socio-economic and geographical conditions when addressing childcare practices. It also highlights the need to implement specific strategies to promote positive childcare practices in more vulnerable contexts to improve early childhood development in Colombia.

Objetivo: Analizar la relación entre la pobreza y las actitudes hacia las prácticas de cuidado infantil en áreas rurales y urbanas de Colombia. Método: El presente artículo es un estudio transversal correlacional en el departamento del Atlántico, al norte de Colombia. Se indagó sobre las actitudes hacia el cuidado infantil y las condiciones de vida en 1189 cuidadores de niños en edad preescolar. Se tuvo en cuenta el índice de pobreza multidimensional y el área de procedencia de los participantes (urbana o rural). Resultados: No se encontró una relación directa entre las actitudes hacia el cuidado infantil y el índice de pobreza multidimensional. Sin embargo, se observó que los participantes de áreas urbanas provenientes de zonas vulnerables presentaron un mayor índice de pobreza y mostraron actitudes menos positivas hacia el cuidado infantil, especialmente en el cuidado cognitivo, del sueño y de la salud. Se evidenció un efecto moderador del área sobre las actitudes de cuidado. Conclusiones: El estudio destaca la influencia de la pobreza y la vulnerabilidad social en las actitudes de cuidado infantil, especialmente en áreas urbanas. Estos hallazgos subrayan la importancia de considerar las condiciones socioeconómicas y geográficas al abordar el cuidado infantil. Además, se resalta la necesidad de implementar estrategias específicas para promover prácticas de cuidado positivas en contextos más vulnerables, con el fin de mejorar el desarrollo de la primera infancia en Colombia.

Evaluation of Connective Tissue Changes in Different Histological Grades of Oral Squamous Cell Carcinoma: A Histochemical Study

Introduction: In squamous cell carcinoma, cells invade the stroma in the form of islands, strands or sheets, which are surrounded by an extracellular matrix, thus producing reactive changes in the stroma. These reactive changes in the stroma may alter the biological behavior of oral cancer which convey some diagnostic and prognostic significance. Objective: This study was to compare staining intensity of various components of connective tissue such as collagen, elastin and glycoprotein among three histological grades of oral squamous cell carcinoma and normal oral mucosa. Materials and Methods: A total sample of 48 in which 36 cases of histologically diagnosed oral squamous cell carcinoma, 12 each of well, moderate and poorly differentiated squamous cell carcinomas and 12 sections of normal mucosa as the control group were selected for the present study. The sections of tissue blocks were stained with connective tissue specific stains such as Verhoeff’s -VanGieson stain and PAS for collagen, elastin and glycoprotein respectively. Results: Staining intensity of collagen, elastin and glycoprotein around tumor island among different grades of OSCC and normal mucosa revealed statistically significant changes (P value <0.001). Collagen and glycoprotein degradation and elastosis are more prominent in poorly differentiated squamous cell carcinomas. Conclusion: Observable changes were seen in the stroma, in all the three grades of OSCC’s compared to normal mucosa. There was an increased stromal response in poorly differentiated carcinomas, when compared to the other grades. Role of the stroma is like a double-edged sword, at times helping in tumor invasion and otherwise warding off the tumor cells.

Factores de riesgo predisponentes al desarrollo de preeclampsia y eclampsia en el embarazo / Risk factors for the development of preeclampsia and eclampsia in pregnancy

Resumen La preeclampsia es una patología de origen desconocido, de alta incidencia en la salud materna y neonatal. Caracterizada como una hipertensión gestacional grave multisistémica a partir de las 20 semanas de gestación hasta el parto y posparto, siendo de los trastornos más prevalentes en el mundo y la principal causa de muerte materna en Ecuador durante 2022. El objetivo fue realizar una revisión bibliográfica respecto de los factores de riesgo que predisponen preeclampsia en embarazadas. Mediante una revisión bibliográfica de estudios correspondientes a factores predisponentes al desarrollo de preeclampsia y eclampsia en embarazadas cuyos resultados se enfocaron a pacientes adultas diagnosticadas con dichas patologías mediante estrategia PICO, aplicando criterios de inclusión y exclusión. La preeclampsia conlleva una diversidad de factores de riesgo familiares patológicos como preeclampsia previa, hipertensión o enfermedades renales, diabéticas y obesidad; otros factores incluyen: edad, raza, embarazos gemelares, multiparidad, progenitores de distinta índole. Los factores significativos para presentar la enfermedad fueron en su mayoría factores ginecoobstétricos donde destacaron multiparidad, edad, obesidad, malnutrición, hipertensión previa y factores hereditarios.

Abstract Preeclampsia is a condition of unknown origin, with a high incidence in maternal and neonatal health, characterized as a severe multisystemic gestational hypertension from the 20th week of gestation until childbirth and postpartum. Among the most prevalent disorders worldwide, in Ecuador was the main cause of maternal death during 2022. The objective was to conduct a literature review regarding risk factors that predispose pregnant women to preeclampsia. Through a literature review of studies corresponding to predisposing factors for the development of preeclampsia and eclampsia in pregnant women, whose results were focused on adult patients diagnosed with said pathologies through the PICO strategy, applying inclusion and exclusion criteria. Preeclampsia involves a variety of pathological familial risk factors such as prior preeclampsia, hypertension, renal diseases, diabetes, and obesity; other factors include age, race, twin pregnancies, multiparity, and diverse parental lineage. The significant factors for presenting the disease were mostly gynecobstetric factors, prominently multiparity, age, obesity, malnutrition, prior hypertension, and hereditary factors.

Roadmapping technique in the hybrid operating room for the microsurgical treatment of complex intracranial aneurysms

Objective@#To describe the roadmapping technique and our three-year experience in the management of intracranial aneurysms in the hybrid operating room. @*Methods@#We analyzed all patients who underwent surgical clipping for cerebral aneurysms with the roadmapping technique from January 2017 to September 2019. We report demographic, clinical, and morphological variables, as well as clinical and radiological outcomes. We further describe three illustrative cases of the technique. @*Results@#A total of 13 patients were included, 9 of which (69.2%) presented with subarachnoid hemorrhage, with a total of 23 treated aneurysms. All patients were female, with a mean age of 47.7 years (range 31-63). All cases were anterior circulation aneurysms, the most frequent location being the ophthalmic segment of the internal carotid artery (ICA) in 11 cases (48%), followed by posterior communicating in 8 (36%), and ICA bifurcation in 2 (8%). Intraoperative clip repositioning was required in 9 aneurysms (36%) as a result of the roadmapping technique in the hybrid operating room. There were no residual aneurysms in our series, nor reported mortality. @*Conclusions@#The roadmapping technique in the hybrid operating room offers a complementary tool for the adequate occlusion of complex intracranial aneurysms, as it provides a real time fluoroscopic-guided clipping technique, and clip repositioning is possible in a single surgical stage, whenever a residual portion of the aneurysm is identified. This technique also provides some advantages, such as immediate vasospasm identification and treatment with intra-arterial vasodilators, balloon proximal control for certain paraclinoid aneurysms, and simultaneous endovascular treatment in selected cases during a single stage.

Heterogeneidad clínica y molecular en los trastornos asociados con CDKL5 / Clinical and molecular heterogeneity in CDLK5 disorders

Resumen Introducción: El síndrome por deficiencia de CDKL5 es originado por variantes patogénicas en el gen CDKL5, con un espectro clínico variable que va desde pacientes con características del trastorno del espectro autista hasta epilepsia de inicio temprano y refractaria al tratamiento. Inicialmente fue considerado como una forma atípica de síndrome de Rett. Casos clínicos: Presentamos tres pacientes no relacionadas, evaluadas por retraso global del desarrollo y epilepsia refractaria. Los tres casos eran hemicigotos a una variante patógena de CDKL5. En una paciente se realizó panel de 306 genes asociados con epilepsia; en las otras dos se realizó microarreglo genómico comparativo. Las características clínicas y los hallazgos en el electroencefalograma y la resonancia magnética cerebral se han descrito clásicamente en el espectro de manifestaciones de este síndrome. Conclusiones: El síndrome por deficiencia de CDKL5 representa un reto para los médicos, ya que en muchos casos las manifestaciones clínicas y los estudios electroencefalográficos y de neuroimagen pueden ser inespecíficos. Debe sospecharse este síndrome ante la presencia de retraso global del desarrollo, fenotipo conductual autista y epilepsia, asociado o no con dismorfias. Dada la similitud entre diversas encefalopatías epilépticas, se deben solicitar paneles multigénicos que incluyan la secuenciación y el análisis de duplicación/deleción en los que se contemple este gen y sus posibles diagnósticos diferenciales, aunque sin olvidar la utilidad de las técnicas genómicas en casos poco claros.

Abstract Background: CDKL5 deficiency syndrome is caused by pathogenic variants in the CDKL5 gene, with a variable clinical spectrum ranging from patients with characteristics of autism spectrum disorder to early-onset epilepsy refractory to treatment. Initially, until the gene was discovered, it was considered an atypical form of Rett syndrome. This study aimed to describe the clinical and molecular heterogeneity in CDLK5 disorders among three female patients with CDKL5 pathogenic variants. Case reports: We reported three unrelated Mexican female patients evaluated for global developmental delay and epilepsy. All three cases were hemizygotes to a CDKL5 pathogenic variant. In one patient, we performed a 306 gene panel associated with epilepsy. In the other two cases, a human genomic microarray was performed. We describe their clinical features electroencephalogram and brain magnetic resonance evaluations. Conclusions: CDKL5 deficiency syndrome represents a challenge for clinicians since the clinical manifestations, electroencephalographic and neuroimaging studies can be non-specific. This syndrome should be suspected in the presence of global developmental delay, autistic behavioral phenotype and epilepsy, associated or not with dysmorphia. Given the similarity between various epileptic encephalopathies, multigene panels including sequencing and duplication/deletion analysis should be requested in which this gene and its possible differential diagnoses are considered, without forgetting the usefulness of genomic techniques in unclear cases.

Vasculitis inducida por cocaína-levamisol con manifestaciones cutáneas, articulares y abdominales: reporte de caso / Cocaine-levamisole induced vasculitis with cutaneous, joint and abdominal manifestations: case report

Resumen El levamisol es un antiparasitario de uso veterinario que actualmente es empleado para aumentar el volumen y la potencia de la cocaína. La mezcla de estas dos sustancias puede causar un cuadro caracterizado por lesiones propias de la cocaína, como la afección del cartílago septal con perforación del tabique nasal, y vasculitis cutánea de pequeños vasos con afectación de los pabellones auriculares y del cartílago nasal, afección conocida como vasculitis inducida por cocaína-levamisol (VICOL) que puede avanzar a necrosis e incluso ulceraciones cutáneas, asociadas a agranulocitosis, artralgias y glomerulonefritis . En el presente artículo se describe el caso de un paciente con historia de consumo de sustancias en quien se encontraron lesiones purpúricas palpables en miembros superiores, tronco, pabellones auriculares y miembros inferiores. Se consideró una clínica sugestiva de VICOL dado el antecedente de consumo de sustancias. En el proceso diagnóstico se descartaron entidades como la vasculitis por anticuerpos contra el citoplasma de los neutrófilos (ANCAs) y crioglobulinemia, entre otras posibles afecciones. Se llevó a cabo un tratamiento con esteroides y con ello presentó una respuesta adecuada, pero luego recurrieron los síntomas, particularmente abdominales, los cuales se consideraron asociados con vasculitis. Se le brindó manejo adicional con ciclofosfamida y nuevos pulsos de esteroides, con que se logró el control total de los síntomas. A través este caso se resaltan entonces los ejercicios diagnósticos y clínicos en la vasculitis cocaína- levamisol, y se sugiere la consideración de los síntomas abdominales como posible componente del cuadro vasculítico.

Abstract Levamisole is an antiparasitic agent for veterinary use. Currently it is used to increase the volume and potency of cocaine. Levamisole and cocaine combined result in the septum nasal perforation and small-vessel vasculitis in the ears and nasal cartilage. These findings are known as cocaine levamisole-induced vasculitis and can progress to necrosis and even skin ulceration, which is associated with agranulocytosis, arthralgia, and glomerulonephritis. This article describes the case of a patient with a history of substance abuse in whom palpable purpuric lesions were found in the upper and lower limbs, trunk, and ears. A clinical condition suggestive of vasculitis induced by cocaine-levamisole was considered, given the history of substance consumption. In the diagnostic process, entities such as Anti-neutrophil Cytoplasmic Antibodiy (ANCA) vasculitis and cryoglobulinemia, among other possible conditions, were ruled out. Steroid treatment was carried out, to which the patient had an adequate response, but then symptoms recurred, particularly abdominal, which were associated with vasculitis. Additional management with cyclophosphamide and new steroid pulses were provided, and with those symptom control was achieved. In this case report highlights the diagnostic and clinical exercises in cocaine levamisole vasculitis and is suggested the consideration of abdominal symptoms as a possible component of the vasculitis flare.

Climas empowering y disempowering, necesidades psicológicas e intención de práctica deportiva futura en jóvenes deportistas / Empowering and disempowering climates, psychological needs and future sports practice intention in young athletes

Resumen Introducción: El objetivo principal de este trabajo es conocer la interrelación entre la percepción de los climas empowering y disempowering generados por los entrenadores (nivel equipo) con la satisfacción y frustración de las necesidades psicológicas básicas, y estas, a su vez, con las intenciones de continuar y abandonar la práctica deportiva (nivel individual) en jóvenes deportistas. Método: Participaron 251 deportistas mexicanos (M = 13.22, DT = 1.28) pertenecientes a 19 equipos. Se les aplicó una batería de cuestionarios para la recolección de datos y se realizó un análisis multinivel de ecuaciones estructuradas. Resultados: El modelo de ecuaciones estructurales reveló asociaciones positivas entre las percepciones de climas empowering desde una perspectiva grupal sobre la satisfacción de necesidades psicológicas básicas y de estas sobre las intenciones de continuar la práctica deportiva desde una perspectiva individual, así como entre las percepciones de un clima disempowering sobre la frustración de las necesidades psicológicas básicas y de estas sobre las intenciones de abandono. Conclusión: Los hallazgos de este estudio sugieren en un nivel aplicado que el clima empowering actúa como catalizador del bienestar psicológico y como protector de la aparición de frustración, mientras que el clima disempowering facilita el desarrollo de respuestas psicológicas desadaptativas en el deporte.

Abstract Introduction: The main objective of this work is to know the interrelation between the perception of empowering and disempowering climates generated by coaches (team level) with basic psychological needs satisfaction and frustration, and these in turn, with the intentions to continue and abandon sports practice (individual level) in young athletes. Method: 251 Mexican athletes participated (M = 13. 22, SD = 1.28) belonging to 19 teams. A battery of questionnaires was applied for data collection and a multilevel structured equation analysis was performed. Results: The structural equation model revealed positive associations between perceptions of empowering climates from a group perspective on the satisfaction of basic psychological needs and of these on intentions to continue practicing sports from an individual perspective; as well as between perceptions of a disempowering climate on the frustration of basic psychological needs and of these on intentions to drop out. Conclusion: The findings of this study suggest at an applied level that the empowering climate acts as a catalyst of psychological well-being and as a protector against the occurrence of frustration, while the disempowering climate facilitates the development of maladaptive psychological responses in sport.

Ventilación mecánica no invasiva en ingresados en un centro provisional para pacientes con CO VID-19 moderada / Non-invasive mechanical ventilation in patients admitted to a provisional center for moderate COVID-19 patients

Introducción: La ventilación mecánica no invasiva es una alternativa ventilatoria para los casos con COVID-19. Objetivo: Describir las características y la evolución de la ventilación mecánica no invasiva en los pacientes egresados en el Centro Provisional para pacientes moderados con COVID-19 en Figali, Panamá. Métodos: Estudio descriptivo, retrospectivo, longitudinal. Incluyó a todos los pacientes adultos egresados entre junio y julio del 2021 que recibieron ventilación mecánica no invasiva. Se utilizó un cuestionario cuya fuente primaria fue la historia clínica individual digital. Se emplearon técnicas de la estadística descriptiva. Resultados: De 217 ingresados con COVID-19 moderado, 78 (35,9 por ciento) necesitaron ventilación mecánica no invasiva, iniciada con media al noveno día de síntomas y segundo después del ingreso. De estos, el 62,8 por ciento eran obesos y el 29,5 por ciento hipertensos. En el 56,4 por ciento, la frecuencia respiratoria ≥30 y la disminución de la razón PaO2/FiO2 fueron los indicadores principales que decidieron el inicio de la VMNI. Del total de ventilados, el 62,8 por ciento tuvo un síndrome de distrés respiratorio agudo moderado-grave y esto se relacionó con el fracaso de la ventilación. La ventilación fue exitosa en el 65,4 por ciento. La razón PaO2/FiO2 <150 (62,9 por ciento), la frecuencia respiratoria ≥30 (55,6 por cientpo y el agotamiento físico (51,85 por ciento), indicaron la falla de la ventilación. Conclusiones: La ventilación mecánica no invasiva es un proceder efectivo en pacientes con COVID-19 y distrés respiratorio moderado o severo; aunque su éxito se relaciona con las formas menos graves. La PaO2/FiO2 baja junto a la clínica, fueron indicadores clave para evaluar inicio, éxito o fracaso de la ventilación mecánica no invasiva; no así los valores de PaO2, PaCO2 y SpO2(AU)

Introduction: Non-invasive mechanical ventilation is a ventilatory alternative for COVID-19 cases. Objective: To describe the characteristics and evolution of non-invasive mechanical ventilation (NIMV) in patients discharged from Provisional Center for moderate COVID-19 patients in Figali, Panama. Methods: A descriptive, retrospective, longitudinal stu was carried out in all adult patients discharged from June to July 2021 and who received non-invasive mechanical ventilation. A questionnaire was used using the digital individual medical record as primary source. Descriptive statistics techniques were used. Results: 35.9percent of the patients (78/217) who were admitted required non-invasive mechanical ventilation on the ninth day of symptoms and the second day after admission. 62.8percent (49/78) were obese and 29.5percent (23/78) hypertensive. The respiratory rate ≥30 and the decrease in the PaO2/FiO2 ratio decided the begining of non-invasive mechanical ventilation in 56.4percent (78/217) of those admitted. 62.8percent (49/78) had moderate-severe acute respiratory distress syndrome, and the severity was related to ventilation failure out of the total number of ventilated patients. Ventilation was successful in 65.4percent (51/78). PaO2/FiO2 <150 (62.9percent), respiratory rate ≥30 (55.6percent) and physical exhaustion (51.85percent) decided ventilation failure. Conclusions: Non-invasive mechanical ventilation is an effective procedure in COVID-19 patients and moderate or severe respiratory distress; although its success is related to the less severe forms. Low PaO2/FiO2, together with symptoms, were key indicators to assess the begining, success or failure of NIMV; not so the values of PaO2, PaCO2 and SpO2(AU)

Association of FAAH p.Pro129Thr and COMT p.Ala72Ser with schizophrenia and comorbid substance use through next-generation sequencing: an exploratory analysis

Objective: Individuals with schizophrenia and substance use disorders have a poor prognosis and increased psychiatric symptoms. The present study aimed to explore the association of 106 genes in individuals with schizophrenia and comorbid substance use through a next-generation sequencing (NGS) analysis and different in silico algorithms. Methods: We included 105 individuals diagnosed with schizophrenia and a family history of schizophrenia, of whom 49 (46.67%) presented comorbid substance use. Using NGS, we sequenced 106 genes previously associated with schizophrenia. Logistic regression models were used to assess differences in allele frequencies, and a generalized gene-set analysis was performed at the gene level. Functional annotations were performed using different algorithms and databases. Results: We identified a total of 3,109 variants, of which 25 were associated with schizophrenia and comorbid substance use and were located in regulatory and coding regions. We found low-frequency variants in COMT p.Ala72Ser, independently of p.Val158Met, that were associated with substance use. The endocannabinoid functional variant FAAH p.Pro129Thr was also associated with substance use. Conclusions: Genetic variants of genes related to dopaminergic and cannabinoid neurotransmitter systems were associated with comorbid substance use in schizophrenia. Nevertheless, more studies with larger sample sizes are needed to confirm our findings.

Síndrome de respuesta inflamatoria sistémica por ticagrelor / Systemic inflammatory response syndrome associated with use of ticagrelor

Resumen El ticagrelor es un antiagregante plaquetario que actúa a través de la unión reversible a los receptores P2Y12 de la adenosina-difosfato. En el síndrome coronario agudo, ha demostrado reducir el riesgo de eventos cardiovasculares mayores como infarto de miocardio, accidente cerebrovascular y muerte. Si bien se han descripto en detalle ciertas complicaciones hemorrágicas, renales, hepáticas y respiratorias por el uso del ticagrelor, otros efectos adversos menos frecuentes de la droga no han sido adecuadamente escla recidos. Presentamos el caso de un paciente con un síndrome de respuesta inflamatoria sistémica secundario al uso de ticagrelor.

Abstract Ticagrelor is anantiplatelet agent which acts through reversible binding to the P2Y12 adenosine-diphosphate recep tors. In acute coronary syndromes it has been shown to reduce the risk of major cardiovascular events such as myocardial infarction, stroke and death. Although some hemorrhagic, kidney, liver and respiratory complications have been described in detail with the use of ticagrelor, other less frequent adverse effects are not so well clari fied. We report the case of a patient with a systemic inflammatory response syndrome secondary to the use of ticagrelor.

Estenosis congénita de venas pulmonares y malformación vascular broncopulmonar / Congenital pulmonary vein stenosis and bronchopulmonary vascular malformation

Resumen El objetivo es mostrar el diagnóstico y la evolución de una paciente con estenosis de venas pulmonares y secuestro pulmonar. Se trata de una niña de 1 año de edad, con bronconeumonías de repetición, acrocianosis, 2R intenso, cardiomegalia, hipertensión venocapilar pulmonar, con diagnóstico clínico de comunicación interauricular. El ecocardiograma mostró estenosis de venas pulmonares izquierdas. El cateterismo cardiaco detectó fístulas arteriovenosas en la región apical del pulmón derecho. La imagen de resonancia magnética y la angiografía mostraron un vaso arterial aberrante paralelo a la aorta abdominal y con flujo dirigido al lóbulo pulmonar derecho. La angiotomografía reportó confluencia de las venas pulmonares del lado derecho. Se realizó lobectomía derecha. La paciente falleció en el posoperatorio debido a una hemorragia masiva pulmonar. Esta paciente es la primera descrita en la literatura con estenosis de venas pulmonares congénita asociada a secuestro pulmonar. La ecocardiografía es el estudio diagnóstico ideal inicial en los pacientes con estenosis congénita de venas pulmonares.

Abstract The objective is demonstrate the diagnostic process and evolution of a patient with a diagnosis of congenital pulmonary vein stenosis and broncho-pulmonary vascular malformation. One year old female patient with repeated bronchopneumonia, acrocyanosis, split S2, cardiomegaly, pulmonary hypertension, with a clinical diagnosis of atrial septal defect. The echocardiogram demonstrated left sided vein pulmonary stenosis. The cardiac catheterization demonstrated arterial-venous fistulas apical on the right lung. Magnetic Resonance image and angiography showed an aberrant arterial vessel parallel to the abdominal aorta which flow the right pulmonary lobe. The cardiac tomography angiography reported confluence of right-sided pulmonary veins. A lobectomy is performed. Patient died in post-operative due to massive pulmonary hemorrhaging. This is the first patient mentioned in written literature with pulmonary vein stenosis associated with pulmonary sequestration, with normal venous connection. Echocardiography represents the specific standard study ideal for initial diagnostic for patients with pulmonary vein stenosis.

Análisis de la calidad de la anticoagulación con antagonistas de la vitamina K en tres escenarios clínicos en México / Analysis of the quality of anticoagulation with vitamin K antagonists in three clinical scenarios in Mexico

Resumen Introducción: Los antagonista de la vitamina K (AVK) son una alternativa terapéutica en los pacientes con enfermedad tromboembólica venosa; sin embargo, numerosos factores afectan su farmacología. Objetivo: Evaluar la calidad de la anticoagulación AVK durante tres diferentes periodos en México. Métodos: Estudio prospectivo, anidado en cohortes de pacientes en tres escenarios clínicos entre los años 2013-2019. Se incluyeron pacientes no hospitalizados con indicación para recibir AVK por al menos 12 meses, quienes fueron manejados de acuerdo con el criterio del médico tratante. Resultados: Las características generales de los pacientes fueron similares entre los grupos, excepto por la indicación para usar los AVK. Se analizaron los resultados de 4148 pacientes y 38 548 evaluaciones de INR. Los tiempos en rango terapéutico durante las tres fases del estudio y los datos acumulados fueron significativamente mayores en la clínica de anticoagulación. Solo el número de visitas de control de los pacientes se asoció significativamente con los resultados, a diferencia de la edad, el sexo y el tipo de AVK. Conclusiones: Los AVK se utilizan ampliamente, pero es difícil alcanzar la meta terapéutica, sobre todo en servicios clínicos no especializados. La creación de clínicas de anticoagulación es una necesidad urgente en el sistema mexicano de salud.

Abstract Introduction: Vitamin K antagonists (VKA) are a therapeutic alternative in patients with venous thromboembolic disease; however, numerous factors affect their pharmacology. Objective: To evaluate the quality of VKA anticoagulation at three different time periods in Mexico. Methods: Prospective study, nested in patient cohorts at three different clinical scenarios between 2013 and 2019. Outpatients with indication for treatment with VKAs for at least 12 months were included. Patients were managed according to the criteria of the treating physician. Results: Patient general characteristics were similar between groups, except for the VKA indication. The results of 4,148 patients and 38,548 INR assessments were analyzed. The times in therapeutic range during the three phases of the study and pooled data were significantly higher for the anticoagulation clinic. Only the number of patient visits was significantly associated with the results, unlike age, gender, and type of VKA. Conclusions: VKAs are widely used, but it is difficult for therapeutic goals to be achieved, especially in non-specialized clinical services. Creation of anticoagulation clinics is an urgent need for the Mexican health system.

Factores asociados a complicaciones en pacientes diabéticos con enfermedad coronaria multivaso intervenidos quirúrgicamente en un centro cardiovascular de alta complejidad / Factors associated with complications in diabetic patients with multivessel coronary disease surgically operated in a highly complex cardiovascular center

Resumen Objetivo: Determinar las características sociodemográficas, clínicas y de procedimiento asociadas a complicaciones en pacientes diabéticos con enfermedad coronaria severa, sometidos a revascularización quirúrgica. Métodos: Estudio de cohortes retrospectivo en pacientes mayores de 18 años con diagnóstico de diabetes mellitus y enfermedad coronaria multivaso, sometidos a revascularización quirúrgica, en el que se evaluaron las características individuales, clínicas y de procedimiento asociadas a complicaciones posquirúrgicas. Se realizó un análisis bivariado y multivariado mediante regresión logística binaria. Resultados: Los factores asociados a complicaciones fueron edad, índice de masa corporal, fracción de eyección del ventrículo izquierdo, clase funcional de la Asociación del Corazón de Nueva York (NYHA, su sigla en inglés por New York Heart Association) preintervención y antecedente de consumo de alcohol y tabaco; de estos, la edad es la variable que persiste con significancia estadística tras el modelo de regresión logística binaria. Conclusión: La incidencia de complicaciones posoperatorias en pacientes diabéticos sometidos a revascularización quirúrgica es comparable con la observada en estudios previos, y el factor asociado encontrado para este grupo de pacientes es la edad. El modelo podría explicar el 23 % del desarrollo de complicaciones en la cohorte estudiada.

Abstract Objective: To determine the sociodemographic, clinical and procedural characteristics associated with complications in diabetic patients with severe coronary disease treated by coronary artery bypass surgery. Methods: A retrospective cohort study in patients over 18 years old with a diagnosis of diabetes mellitus and multivessel coronary disease, undergoing surgical revascularization, where individual, clinical and procedural characteristics associated with surgical complications were evaluated. A bivariate and multivariate analysis was performed using binary logistic regression. Results: The factors associated with complications that were found were: age, body mass index, left ventricular ejection fraction, pre intervention New York Heart Association (NYHA) functional class, alcohol and tobacco history. Of these, age was the only variable that persists with statistical significance after the logistic regression model. Conclusion: The incidence of postoperative complications in diabetic patients undergoing surgical revascularization is comparable to that observed in previous studies. The associated factor found for this group of patients is the age.

Inhibition of Brazilian ZIKV strain replication in primary human placental chorionic cells and cervical cells treated with nitazoxanide

ABSTRACT Zika virus (ZIKV) infection during pregnancy is associated with a congenital syndrome. Although the virus can be detected in human placental tissue and sexual transmission has been verified, it is not clear how the virus reaches the fetus. Despite the emerging severity caused by ZIKV infection, no specific prophylactic and/or therapeutic treatment is available. The aim of the present study was to evaluate the effectiveness antiviral of nitazoxanide (NTZ) in two important congenital transmission targets: (i) a primary culture of human placental chorionic cells, and (ii) human cervical epithelial cells (C33-A) infected with Brazilian ZIKV strain. Initially, NTZ activity was screened in ZIKV infected Vero cells under different treatment regimens with non-toxic drug concentrations for 48 h. Antiviral effect was found only when the treatment was carried out after the viral inoculum. A strong effect against the dengue virus serotype 2 (DENV-2) was also observed suggesting the possibility of treating other Flaviviruses. Additionally, it was shown that the treatment did not reduce the production of infectious viruses in insect cells (C6/36) infected with ZIKV, indicating that the activity of this drug is also related to host factors. Importantly, we demonstrated that NTZ treatment in chorionic and cervical cells caused a reduction of infected cells in a dose-dependent manner and decreased viral loads in up to 2 logs. Pre-clinical in vitro testing evidenced excellent therapeutic response of infected chorionic and cervical cells and point to future NTZ activity investigation in ZIKV congenital transmission models with the perspective of possible repurposing of NTZ to treat Zika fever, especially in pregnant women.

Comportamientos de riesgo y dimensiones de personalidad en la adolescencia / Risk behaviours and personality traits in adolescence

Resumen: Los objetivos del presente trabajo fueron: 1) establecer la prevalencia del consumo de alcohol, de tabaco y de cannabis, así como de las relaciones sexuales sin protección y la repetición de curso en adolescentes en función del sexo; 2) determinar las dimensiones de personalidad introversión (I), búsqueda de sensaciones (BS), impulsividad (Im) y sensibilidad a la ansiedad (SA) en función del sexo; 3) relacionar posibles perfiles de personalidad con dichas conductas. La muestra se compuso de 1.324 adolescentes (14-18 años). A partir de las dimensiones de personalidad valoradas se establecieron 4 grupos de adolescentes. El grupo de adolescentes con puntuaciones altas en todas las dimensiones de personalidad es el que presentó mayores tasas de experimentación con el consumo. Por el contrario, el de los adolescentes con bajos niveles de I, BS e Im fue el que menores tasas presentó. Las intervenciones preventivas deberían tener en cuenta las dimensiones de personalidad señaladas para poder aplicarse con una mayor efectividad.

Abstract: The objectives of this study were: 1) to establish the prevalence of alcohol, tobacco and cannabis use, as well as unprotected sex and school failure among adolescents according to gender; 2) to determine the personality dimensions: introversion (I), sensation-seeking (SS), impulsivity (Im) and anxiety sensitivity (AS) according to gender; 3) to relate possible personality profiles to these behaviours. The sample included 1.324 adolescents aged between 14-18. 4 groups of adolescents were established based on the assessed personality dimensions. The group of adolescents with high scores in all personality dimensions presented the highest rates of experimentation with consumption. On the contrary, the group of adolescents with low levels of I, SS and Im presented the lowest rates. Preventive interventions should take into account the personality dimensions indicated in order to be applied with greater effectiveness.

Brain Gene Expression-DNA Methylation Correlation in Suicide Completers: Preliminary Results

Abstract Background: Gene expression alterations have been implicated in suicide pathology. However, the study of the regulatory effect of DNA methylation on gene expression in the suicidal brain has been restricted to candidate genes. Objective: The objective of the study was to identify genes whose expression levels are correlated with DNA methylation in the prefrontal cortex of suicides. Methods: Postmortem prefrontal cortex samples from 21 suicides and six non-suicides were collected. Transcriptomic and DNA methylation profiles were evaluated with microarrays; cis correlations between gene expression and CpG methylation were screened. We then analyzed the presence of transcription factor (TF) binding sites (TFBS) at CpG sites correlated with gene expression. Gene expression of TFs involved in neurodevelopmental binding to predicted TFBS was determined in the BrainSpan database. Results: We identified 22 CpG sites whose methylation levels correlated with gene expression in the prefrontal cortex of suicides. Genes annotated to identified CpG sites were involved in neurodevelopment (BBS4, NKX6-2, AXL, CTNND1, and MBP) and polyamine metabolism (polyamine oxidase [PAOX]). Such correlations were not detected in the non-suicide group. Nine TFs (USF1, TBP, SF1, NRF1, RFX1, SP3, PKNOX1, MAZ, and POU3F2) showed differential expression in pre- and post-natal developmental periods, according to BrainSpan database. Conclusions: The integration of different omic technologies provided novel candidates for the investigation of genes whose expression is altered in the suicidal brain and their potential regulatory mechanisms. (REV INVEST CLIN. 2020;72(5):283-92)