Effect of formulations over a Periodic Capacitated Vehicle Routing Problem with multiple depots, heterogeneous fleet, and hard time-windows.

This article presents a novel contribution to the Periodic Vehicle Routing Problem (PVRP) by introducing two new problem formulations which differ in the usage of the crucial flow variable. The formulations are tailored to meet the specific demands of the vending machine industry in Medellín, Colombia, and require considering a PVRP with time windows, a heterogeneous fleet, and multiple depots. This scenario, tailored to address real-world complexity and computational challenges, brings to light an exponential surge in integer variables as customer numbers increase. The research presents an analysis of PVRPs that include the four mentioned attributes, compares their similarities, and delves into their nuances. From the analysis it is derived that the variant of the PVRP presented has not been considered previously, taking into account not only these attributes, but also the restrictions involved. Empirical experiments are conducted to examine the intricate interplay between the two proposed formulations, highlighting their impact on the performance of the GUROBI solver. The study provides valuable insights into problem-specific adaptations and algorithmic approaches, emphasizing the significance of the proposed formulations in addressing multifaceted PVRPs. In essence, this research positions the introduction of these two formulations as a pioneering step, offering a new paradigm for approaching the PVRP.

[Epidemiological, clinical, and biochemical characteristics of patients in the LUPUS-IMMex cohort]. / Características epidemiológicas, clínicas y bioquímicas de los pacientes en la cohorte LUPUS-IMMex.

Background: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that can affect multiple organs and body systems. Objective: To describe the sociodemographic, clinical, and biochemical characteristics of the Lupus-IMMS-Mexico (LUPUS-IMMex) patient cohort from a tertiary-level center. Material and methods: Observational descriptive study of 160 patients with diagnosis of SLE belonging to the aforementioned cohort. Various variables were analyzed at the time of diagnosis. For quantitative variables, normality tests were applied, followed by measures of central tendency and dispersion according to their distribution. For categorical variables, frequencies and percentages were calculated. Results: 81.87% of the patients were female, with a median age at diagnosis of 28 years. 18.12% had a family history of SLE, and concurrently with SLE, 32.50% had hypertension, and 11.25% had antiphospholipid syndrome. The most common clinical manifestation was joint involvement (68.12%), renal (49.37%) and hematological (43.75%) manifestations. Conclusions: SLE affects millions globally. Lack of awareness leads to delayed diagnoses, suboptimal management, and diminished quality of life. After analyzing 160 patients with SLE, their clinical, socioeconomic, and therapeutic characteristics are largely like other cohorts, with differences attributable to ethnic and geographical influences. Informing patients about SLE and providing reliable resources are essential for self-care. Awareness promotes research, therapies, and enhances medical care and the lives of patients globally.

Introducción: el lupus eritematoso sistémico (LES) es una enfermedad autoinmunitaria crónica que puede afectar a múltiples órganos y sistemas del cuerpo. Objetivo: describir las características sociodemográficas, clínicas y bioquímicas de la cohorte de pacientes Lupus-IMMS-México (LUPUS-IMMex) de un hospital de tercer nivel. Material y métodos: estudio descriptivo observacional de 160 pacientes con diagnóstico de LES de la cohorte mencionada. Se analizaron diversas variables al momento del diagnóstico. Para variables cuantitativas se aplicaron pruebas de normalidad y posteriormente medidas de tendencia central y dispersión de acuerdo con su distribución. Para variables categóricas se calcularon frecuencias y porcentajes. Resultados: 81.87% de los pacientes fueron del sexo femenino, con mediana de edad al diagnóstico de 28 años. El 18.12% tenían antecedentes familiares de LES y concomitante al LES, hipertensión (32.50%) y síndromes antifosfolípidos (11.25%). Las afecciones clínicas más frecuentes fueron la articular (68.12%), la renal (49.37%) y la hematológica (43.75%). Conclusiones: el LES afecta a millones de personas globalmente. La falta de conciencia lleva a diagnósticos tardíos, manejo deficiente y baja calidad de vida. Tras analizar 160 pacientes con LES, sus características clínicas, socioeconómicas y terapéuticas son mayormente similares a otras cohortes, con diferencias atribuibles a influencias étnicas y geográficas. Informar a los pacientes sobre el LES y brindar recursos confiables es esencial para el autocuidado. La sensibilización fomenta la investigación, las terapias y mejora la atención médica y la vida de pacientes a nivel global.

Effects of Empagliflozin on Vascular and Skeletal Mineralization in Hyperlipidemic Mice.

Cardiovascular disease and osteoporosis, major causes of morbidity and mortality, are associated with hyperlipidemia. Recent studies show that empagliflozin (EMPA), an inhibitor of sodium-glucose cotransporter-2 (SGLT2), improves cardiovascular health. In preclinical animal studies, EMPA mitigates vascular calcification in the males but its effects in the females are not known. Thus, we used female mice to test the effects of EMPA on calcification in the artery wall, cardiac function, and skeletal bone. By serial in vivo microCT imaging, we followed the progression of aortic calcification and bone mineral density in young and older female Apoe-/- mice fed a high-fat diet with or without EMPA. The two different age groups were used to compare early vs. advanced stages of aortic calcification. Results show that EMPA treatment increased urine glucose levels. Aortic calcium content increased in both the controls and the EMPA-treated mice, and EMPA did not affect progression of aortic calcium content in both young and older mice. However, 3-D segmentation analysis of aortic calcium deposits on microCT images revealed that EMPA-treated mice had significantly less surface area and volume of calcified deposits as well as fewer numbers of deposits than the control mice. To test for direct effects on vascular cell calcification, we treated murine aortic smooth muscle cells with EMPA, and results showed a slight inhibition of alkaline phosphatase activity and inflammatory matrix calcification. As for skeletal bone, EMPA-treated mice had significantly lower BMD than the controls in both the lumbar vertebrae and femoral bones in both young and older mice. The findings suggest that, in hyperlipidemic female mice, unlike males, SGLT2 inhibition with empagliflozin does not mitigate progression of aortic calcification and may even lower skeletal bone density.

Hepatic steatosis induced by nicotine plus Coca-Cola™ is prevented by nicotinamide riboside (NR).

Introduction: Cigarettes containing nicotine (Nic) are a risk factor for the development of cardiovascular and metabolic diseases. We reported that Nic delivered via injections or e-cigarette vapor led to hepatic steatosis in mice fed with a high-fat diet. High-fructose corn syrup (HFCS) is the main sweetener in sugar-sweetened beverages (SSBs) in the US. Increased consumption of SSBs with HFCS is associated with increased risks of non-alcoholic fatty liver disease (NAFLD). Nicotinamide riboside (NR) increases mitochondrial nicotinamide adenine dinucleotide (NAD+) and protects mice against hepatic steatosis. This study evaluated if Nic plus Coca-Cola™ (Coke) with HFCS can cause hepatic steatosis and that can be protected by NR. Methods: C57BL/6J mice received twice daily intraperitoneal (IP) injections of Nic or saline and were given Coke (HFCS), or Coke with sugar, and NR supplementation for 10 weeks. Results: Our results show that Nic+Coke caused increased caloric intake and induced hepatic steatosis, and the addition of NR prevented these changes. Western blot analysis showed lipogenesis markers were activated (increased cleavage of the sterol regulatory element-binding protein 1 [SREBP1c] and reduction of phospho-Acetyl-CoA Carboxylase [p-ACC]) in the Nic+Coke compared to the Sal+Water group. The hepatic detrimental effects of Nic+Coke were mediated by decreased NAD+ signaling, increased oxidative stress, and mitochondrial damage. NR reduced oxidative stress and prevented mitochondrial damage by restoring protein levels of Sirtuin1 (Sirt1) and peroxisome proliferator-activated receptor coactivator 1-alpha (PGC1) signaling. Conclusion: We conclude that Nic+Coke has an additive effect on producing hepatic steatosis, and NR is protective. This study suggests concern for the development of NAFLD in subjects who consume nicotine and drink SSBs with HFCS.

Utility of a clinical risk scale to predict the requirement of advanced airway management in patients with a diagnosis of deep neck abscess.

OBJECTIVES: To analyze the clinical utility of a clinical risk scale to predict the need for advanced airway management in patients with deep neck abscess. METHODS: Observational, analytical, cross-sectional study. Patients over 18 years old, both genders, with surgical management of a deep neck abscess, between January 1st, 2015 to December 31th, 2021, who were applied the clinical risk scale (https://7-414-5-19.shinyapps.io/ClinicalRiskScore/). The sensitivity, specificity, and predictive values of the scale were calculated based on the identified clinical outcomes. A p<0.05 was considered significant. RESULTS: A sample of 213 patients was obtained, 121 (56.8%) men, of whom 50 (23.5%) required advanced airway management. Dyspnea was the variable with the most statistical weight in our study, (p=0.001) as well as the multiple spaces involvement, (p=0.001) the presence of air corpuscles, (p=0.001) compromise of the retropharyngeal space (p=0.001) and age greater than 55 years (p=0.001). Taking these data into account, were found for the clinical risk scale a sensitivity of 97% and a specificity of 65% (p=0.001, 95% CI 0.856-0.984). CONCLUSIONS: The clinical risk scale developed to predict advanced airway management in patients with a diagnosis of deep neck abscess may be applicable in our environment with high sensitivity and specificity. LEVEL OF EVIDENCE: IV.

Utility of a clinical risk scale to predict the requirement of advanced airway management in patients with a diagnosis of deep neck abscess,

Abstract Objectives To analyze the clinical utility of a clinical risk scale to predict the need for advanced airway management in patients with deep neck abscess. Methods Observational, analytical, cross-sectional study. Patients over 18 years old, both genders, with surgical management of a deep neck abscess, between January 1st, 2015 to December 31th, 2021, who were applied the clinical risk scale (https://7-414-5-19.shinyapps.io/ClinicalRiskScore/). The sensitivity, specificity, and predictive values of the scale were calculated based on the identified clinical outcomes. A p < 0.05 was considered significant. Results A sample of 213 patients was obtained, 121 (56.8%) men, of whom 50 (23.5%) required advanced airway management. Dyspnea was the variable with the most statistical weight in our study, (p = 0.001) as well as the multiple spaces involvement, (p = 0.001) the presence of air corpuscles, (p = 0.001) compromise of the retropharyngeal space (p = 0.001) and age greater than 55 years (p = 0.001). Taking these data into account, were found for the clinical risk scale a sensitivity of 97% and a specificity of 65% (p = 0.001, 95% CI 0.856-0.984). Conclusions The clinical risk scale developed to predict advanced airway management in patients with a diagnosis of deep neck abscess may be applicable in our environment with high sensitivity and specificity. Level of evidence: IV.

Resultados maternos y fetales en mujeres embarazadas con enfermedad renal crónica basada en la tasa de filtración glomerular / Maternal And Fetal Outcomes In Pregnant Women With Chronic Kidney Disease Based On Glomerular Filtration Rate

Introducción: el embarazo causa adaptaciones en el riñón, tanto en anatomía como en función, para mantener el entorno extracelular, hemodinámico y hormonal. Sin embargo, estos pueden no llevarse a cabo de manera completamente óptima en presencia de enfermedad renal. El objetivo era estudiar la relación entre la enfermedad renal y los resultados maternos de fetal durante el embarazo, asociado con un rechazo por paciente y/o en relación con el tratamiento especializado. Material y métodos: estudio observacional y retrospectivo en una serie de casos, revisando 134 archivos de pacientes embarazadas con cierto grado de enfermedad renal antes del embarazo. Los resultados maternos registrados fueron: enfermedad hipertensiva durante el embarazo, deterioro renal agudo, necesidad de terapia de sustitución renal y en productos: prematuridad, restricción del crecimiento intrauterino, muerte fetal y aborto espontáneo. Resultados: Resultados maternos: tasa media de filtración glomerular (GFR) de 58.23 ml/min, aumento de peso de 7 kg; La preeclampsia fue diagnosticada en 92 mujeres (55 severas). 46 pacientes mostraron lesión renal aguda, 40 se resolvieron conservativamente; 1 requirió diálisis peritoneal y 15 hemodiálisis (con una decisión retrasada un promedio de un mes por rechazo por paciente y/o pariente). La resolución del embarazo fue por cesárea en 111 pacientes; Nacieron 116 productos antes de las 37 semanas de gestación, con un peso promedio de 1910 g, 94 mostraron restricción del crecimiento intrauterino. Conclusión: la enfermedad renal influyó directamente en el mayor número de resultados adversos maternos y fetales cuando se rechazó la atención médica especializada. Existe una correlación entre el ligero estado de Davison con los estados I, II y IIIA de Kdigo en el análisis de correspondencia

Introduction: Pregnancy causes adaptations in the kidney, both in anatomy and function, to maintain the extracellular, hemodynamic and hormonal environment. However, these may not be carried out completely optimally in the presence of kidney disease. The objective was to study the relation between kidney disease and maternal-fetal outcomes during pregnancy, associated with a rejection by patient and/or relative to specialized treatment. Material and Methods: Observational, retrospective study in a series of cases, reviewing 134 files of pregnant patients with some degree of kidney disease prior to pregnancy. Maternal outcomes recorded were: hypertensive disease during pregnancy, acute renal deterioration, need for renal substitution therapy, and in products: prematurity, restriction of intrauterine growth, fetal death and miscarriage. Results: Maternal outcomes: mean glomerular filtration rate (GFR) of 58.23ml/min, weight gain of 7 kg; preeclampsia was diagnosed in 92 women (55 severe). 46 patients showed acute renal lesion, 40 were conservatively resolved; 1 required peritoneal dialysis and 15 hemodialysis (with decision delayed an average of one month by rejection by patient and/or relative). Resolution of pregnancy was by cesarean in 111 patients; 116 products were born before 37 weeks of gestation, with average weight of 1910 g, 94 showed restriction of intrauterine growth. Conclusion: Kidney disease directly influenced the greater number of adverse maternal and fetal outcomes when specialized medical care was rejected. There is a correlation between slight Davison state with states I, II and IIIa of KDIGO in correspondence analysis.

[Severe post-COVID-19 dialysis dependence and inpatient acute kidney injury]. / Dependencia a diálisis posterior a COVID-19 grave y lesión renal aguda intrahospitalaria.

Background: COVID-19 challenged our health system, within the broad clinical spectrum acute kidney injury was presented as a catastrophic event, acute kidney injury and the risk of dependency after dialysis constitute a clinical problem with high repercussions in the funcionality. Objective: To identify risk factors for dialysis dependence after acute kidney injury from COVID-19. Material and methods: A retrospective observational cohort study was carried out at the Hospital de Especialidades del Centro Médico Nacional Siglo XXI, of the Mexican Institute of Social Security, from March 2020 to March 2021. 317 patients were included, we performed descriptive statistics, we compared differences between the stages of acute kidney injury, finding a difference in obesity with a frequency of 2.2% in stage 1, 20.82% stage 2 and 14.51% stage 3, with p value = 0.018. Results: We found dialysis dependence one year after hospital-acquired acute kidney injury induced by COVID-19 in 58 patients (18.9%), we analyzed by KDIGO stage, in those patients who had AKI KDIGO 1 (2.83%) it depended on dialysis at one year, in the KDIGO stage 2 (3.78%), in the KDIGO stage 3 (11.67%). Conclusions: Our study allowed us to identify that the risk factors associated with dialysis dependence are: male gender, type 2 diabetes mellitus, obesity, cardiovascular disease.

Introducción: la COVID-19, retó a nuestro sistema de salud, dentro del amplio espectro clínico la lesión renal aguda se presentó como un evento catastrófico, la lesión renal aguda y el riesgo de dependencia posterior a diálisis constituye un problema clínico con alta repercusión en la funcionalidad. Objetivo: identificar los factores de riesgo para la dependencia a diálisis posterior a lesión renal aguda por COVID-19. Material y métodos: se realizó un estudio de cohorte observacional retrospectivo en el Hospital de Especialidades del Centro Médico Nacional Siglo XXI, del Instituto Mexicano del Seguro Social, del periodo de marzo del 2020 a marzo del 2021. Se incluyeron 317 pacientes, realizamos estadística descriptiva, comparamos diferencias entre los estadios de lesión renal aguda encontrando diferencia en obesidad con frecuencia de 2.2% en estadio 1, de 20.82% estadio 2 y de 14.51% estadio 3, con valor p = 0.018. Resultados: encontramos la dependencia a diálisis a un año posterior a lesión renal aguda intrahospitalaria inducida por COVID-19 en 58 pacientes (18.9%), analizamos por estadio de KDIGO, en aquellos pacientes que cursaron con LRA KDIGO 1 (2.83%) dependió de diálisis a un año, en el estadio KDIGO 2 (3.78%), en el estadio KDIGO 3 (11.67%). Conclusiones: nuestro estudio permitió identificar que los factores de riesgo que se asocian con dependencia a diálisis son: sexo masculino, diabetes mellitus tipo 2, obesidad, enfermedad cardiovascular.

The lipolysis inhibitor acipimox reverses the cardiac phenotype induced by electronic cigarettes.

Electronic cigarettes (e-cigarettes) are a prevalent alternative to conventional nicotine cigarettes among smokers and people who have never smoked. Increased concentrations of serum free fatty acids (FFAs) are crucial in generating lipotoxicity. We studied the effects of acipimox, an antilipolytic drug, on e-cigarette-induced cardiac dysfunction. C57BL/6J wild-type mice on high fat diet were treated with saline, e-cigarette with 2.4% nicotine [e-cigarette (2.4%)], and e-cigarette (2.4%) plus acipimox for 12 weeks. Fractional shortening and ejection fraction were diminished in mice exposed to e-cigarettes (2.4%) compared with saline and acipimox-treated mice. Mice exposed to e-cigarette (2.4%) had increased circulating levels of inflammatory cytokines and FFAs, which were diminished by acipimox. Gene Set Enrichment Analysis revealed that e-cigarette (2.4%)-treated mice had gene expression changes in the G2/M DNA damage checkpoint pathway that was normalized by acipimox. Accordingly, we showed that acipimox suppressed the nuclear localization of phospho-p53 induced by e-cigarette (2.4%). Additionally, e-cigarette (2.4%) increased the apurinic/apyrimidinic sites, a marker of oxidative DNA damage which was normalized by acipimox. Mice exposed to e-cigarette (2.4%) had increased cardiac Heme oxygenase 1 protein levels and 4-hydroxynonenal (4-HNE). These markers of oxidative stress were decreased by acipimox. Therefore, inhibiting lipolysis with acipimox normalizes the physiological changes induced by e-cigarettes and the associated increase in inflammatory cytokines, oxidative stress, and DNA damage.

Mutations in the bZip region of the CEBPA gene: A novel prognostic factor in patients with acute myeloid leukemia.

BACKGROUND: Hematopoiesis, the process of blood cell formation involves on a complex network of transcription factors. Among them, the CCAAT-enhancer-binding protein alpha (CEBPA) plays a crucial role in maintaining the balance between myeloid proliferation and differentiation. Imbalances in this network can lead to disrupted differentiation and contribute to the development of malignant diseases. AIM: Understanding of disease development and explore potential therapeutic strategies for hematological disorders associated CEPBA gen. MATERIALS AND METHODS: The research involved a comprehensive analysis of CEBPA gene mutations in the context of acute myeloid leukemia (AML). This encompassed a thorough exploration of point mutations and double mutations in AML patients. RESULTS: In the context of acute myeloid leukemia (AML), mutations in the CEBPA gene, especially point mutations, are frequently observed. A significant number of AML patients present with double mutations in CEBPA, which have been linked to a more favorable prognosis in terms of overall survival and event-free survival. These patients also tend to exhibit enhanced responsiveness to treatment. DISCUSSION: Unraveling the intricate interplay of transcription factors, particularly CEBPA, holds significant implications for decoding the mechanisms governing hematopoiesis. This understanding offers a potential avenue for deciphering disease development and devising novel therapeutic strategies for hematological disorders. CONCLUSION: The findings underscore that CEBPA mutations correlate with enhanced overall survival and event-free survival, with relevance to those presenting within the bZip framework. This knowledge may contribute to advancing personalized treatments for hematological conditions.

Fatty Acid Excess Dysregulates CARF to Initiate the Development of Hepatic Steatosis.

CARF (CDKN2AIP) regulates cellular fate in response to various stresses. However, its role in metabolic stress is unknown. We found that fatty livers from mice exhibit low CARF expression. Similarly, overloaded palmitate inhibited CARF expression in HepG2 cells, suggesting that excess fat-induced stress downregulates hepatic CARF. In agreement with this, silencing and overexpressing CARF resulted in higher and lower fat accumulation in HepG2 cells, respectively. Furthermore, CARF overexpression lowered the ectopic palmitate accumulation in HepG2 cells. We were interested in understanding the role of hepatic CARF and underlying mechanisms in the development of NAFLD. Mechanistically, transcriptome analysis revealed that endoplasmic reticulum (ER) stress and oxidative stress pathway genes significantly altered in the absence of CARF. IRE1α, GRP78, and CHOP, markers of ER stress, were increased, and the treatment with TUDCA, an ER stress inhibitor, attenuated fat accumulation in CARF-deficient cells. Moreover, silencing CARF caused a reduction of GPX3 and TRXND3, leading to oxidative stress and apoptotic cell death. Intriguingly, CARF overexpression in HFD-fed mice significantly decreased hepatic steatosis. Furthermore, overexpression of CARF ameliorated the aberrant ER function and oxidative stress caused by fat accumulation. Our results further demonstrated that overexpression of CARF alleviates HFD-induced insulin resistance assessed with ITT and GTT assay. Altogether, we conclude that excess fat-induced reduction of CARF dysregulates ER functions and lipid metabolism leading to hepatic steatosis.

Adverse events in anesthesia: Analysis of claims against anesthesiologists affiliated to an insurance fund in Colombia. Cross-sectional study / Eventos adversos en anestesia: Análisis de las reclamaciones contra anestesiólogos afiliados a un fondo de aseguramiento en Colombia. Estudio de corte transversal

Abstract Introduction: Prevention, identification, analysis and reduction of adverse events (AEs) are all activities designed to increase safety of care in the clinical setting. Closed claims reviews are a strategy that allows to identify patient safety issues. This study analyzes adverse events resulting in malpractice lawsuits against anesthesiologists affiliated to an insurance fund in Colombia between 2013-2019. Objective: To analyze adverse events in closed medicolegal lawsuits against anesthesiologists affiliated to an insurance fund between 2013-2019. Methods: Cross-sectional observational study. Convenience sampling was used, including all closed claims in which anesthesiologists affiliated to an insurance fund in Colombia were sued during the observation period. Variables associated with the occurrence of AEs were analyzed. Results: Overall, 71 claims were analyzed, of which 33.5% were due to anesthesia-related AEs. Adverse events were found more frequently among ASA I-II patients (78.9%), and in surgical procedures (95.8%). The highest number of adverse events occurred in plastic surgery (29.6%); the event with the highest proportion was patient death (43.7%). Flaws in clinical records and failure to comply with the standards were found in a substantial number of cases. Conclusions: When compared with a previously published study in the same population, an increase in ethical, disciplinary and administrative claims was found, driven by events not directly related to anesthesia. Most of the anesthesia-related events occurred in the operating room during surgical procedures in patients and procedures categorized as low risk, and most of them were preventable.

Resumen Introducción: La prevención, identificación, análisis y reducción de los eventos adversos (EA), son actividades direccionadas a incrementar la seguridad de la atención en el entorno clínico. El estudio de los casos cerrados es una estrategia que permite identificar problemas relacionados con la seguridad del paciente. En este estudio se analizan eventos adversos conducentes a procesos medicolegales cerrados contra anestesiólogos afiliados a un fondo de aseguramiento en Colombia entre 2013-2019. Objetivo: Analizar los eventos adversos en procesos medicolegales cerrados de anestesiólogos afiliados a un fondo de aseguramiento entre 2013-2019. Métodos: Estudio observacional de corte transversal. Se analizó una muestra a conveniencia en la que se incluyeron todos los casos cerrados en los que anestesiólogos afiliados a un fondo de aseguramiento en Colombia fueron objeto de reclamaciones en el período de observación. Se analizaron variables relacionadas con la presentación del EA. Resultados: Se analizaron 71 reclamaciones, de las cuales el 33,5 % fueron por EA relacionado con anestesia. Los eventos adversos se encontraron con mayor frecuencia en pacientes ASA I-II (78,9 %), y en procedimientos quirúrgicos (95,8 %). El mayor número de eventos adversos se presentó en cirugía plástica (29,6 %); el evento de mayor proporción fue el fallecimiento del paciente (43,7 %). En un importante número de casos se demostró fallos en el registro de la historia clínica e incumplimiento de normas. Conclusiones: En relación con un estudio publicado previamente en la misma población, se encuentra un incremento en los procesos éticos, disciplinarios y administrativos, motivados por eventos sin una relación directa con el acto anestésico. La mayoría de eventos adversos relacionados con anestesia se presentan en procedimientos quirúrgicos, en salas de cirugía, en pacientes y procedimientos catalogados como de bajo riesgo, y son en su mayoría prevenibles.

[Risk factors at admission associated with intubation in patients with COVID-19]. / Factores de riesgo al ingreso asociados a intubación en pacientes con COVID-19.

Background: Intubation rates up to 33% have been found in patients diagnosed with COVID-19. Some cohorts have reported the presence of dyspnea in 84.1% of intubated patients, being this the only symptom associated with intubation. Oxygen saturation < 90% and increased respiratory rate have also been described as predictors of intubation. Objective: To analyze the risk factors associated with intubation in patients hospitalized for COVID-19 at their admission. Material and methods: An observational, retrospective, analytical, cross-sectional study was carried out. The universe of study consisted of patients over 18 years of age hospitalized due to a diagnosis of SARS-CoV-2 virus infection from April 1, 2020 to April 31, 2021 in the Hospital de Especialidades (Specialties Hospital) "Dr. Bernardo Sepúlveda Gutiérrez" at the National Medical Center. Results: The mean age of intubated patients was 59.17 years (95% confidence interval [95% CI] -9.994 to -3.299, p < 0.001). Overall, 76.7% (230) of patients had a history of one or more preexisting comorbidities, including hypertension in 42.3% (127), obesity in 36.7% (110), and diabetes mellitus in 34.3% (103). Conclusions: The main clinical characteristics of patients hospitalized for COVID-19 in our center who required intubation are very similar to those observed in different centers, including male sex, age over 50 years and obesity, which were the most common.

Introducción: se han encontrado tasas de intubación de hasta 33% en pacientes con diagnóstico de COVID-19. Algunas cohortes han informado la presencia de disnea en el 84.1% de los pacientes intubados y este ha sido el único síntoma asociado con la intubación. La saturación de oxígeno < 90% y el aumento de la frecuencia respiratoria también han sido descritos como predictores de intubación. Objetivo: analizar los factores de riesgo asociados a intubación en pacientes con COVID-19 al momento de su admisión hospitalaria. Material y métodos: se realizó un estudio observacional, transversal, analítico y retrospectivo. El universo de estudio consistió en pacientes mayores de 18 años, hospitalizados por diagnóstico de infección por virus SARS-CoV-2 del 1 abril de 2020 al 31 abril de 2021 en el Hospital de Especialidades "Dr. Bernardo Sepúlveda Gutiérrez" del Centro Médico Nacional. Resultados: se analizaron un total de 300 pacientes. La media de edad de los pacientes intubados fue de 59.17 años (p < 0.001, intervalo de confianza del 95% [IC 95%] −9.994 a −3.299). En general, el 76.7% (230) de los pacientes tenía antecedentes de una o más comorbilidades preexistentes, incluida la hipertensión en 42.3% (127), la obesidad en 36.7% (110) y la diabetes mellitus en 34.3% (103). Conclusiones: las principales características clínicas de los pacientes hospitalizados por COVID-19 en nuestro centro que requirieron de intubación son muy similares a las observadas en distintos centros, entre ellas el sexo masculino, la edad mayor de 50 años y la obesidad, que fueron las más prevalentes.

Transient gestational hypothyroxinemia accelerates and enhances ulcerative colitis-like disorder in the male offspring.

Introduction: Gestational hypothyroxinemia (HTX) is a condition that occurs frequently at the beginning of pregnancy, and it correlates with cognitive impairment, autism, and attentional deficit in the offspring. Evidence in animal models suggests that gestational HTX can increase the susceptibility of the offspring to develop strong inflammation in immune-mediated inflammatory diseases. Ulcerative colitis (UC) is a frequent inflammatory bowel disease with unknown causes. Therefore, the intensity of ulcerative colitis-like disorder (UCLD) and the cellular and molecular factors involved in proinflammatory or anti-inflammatory responses were analyzed in the offspring gestated in HTX (HTX-offspring) and compared with the offspring gestated in euthyroidism (Control-offspring). Methods: Gestational HTX was induced by the administration of 2-mercapto-1-methylimidazole in drinking water to pregnant mice during E10-E14. The HTX-offspring were induced with UCLD by the acute administration of dextran sodium sulfate (DSS). The score of UCLD symptomatology was registered every day, and colon histopathology, immune cells, and molecular factors involved in the inflammatory or anti-inflammatory response were analyzed on day 6 of DSS treatment. Results: The HTX-offspring displayed earlier UCLD pathological symptoms compared with the Control-offspring. After 6 days of DSS treatment, the HTX-offspring almost doubled the score of the Control-offspring. The histopathological analyses of the colon samples showed signs of inflammation at the distal and medial colon for both the HTX-offspring and Control-offspring. However, significantly more inflammatory features were detected in the proximal colon of the HTX-offspring induced with UCLD compared with the Control-offspring induced with UCLD. Significantly reduced mRNA contents encoding for protective molecules like glutamate-cysteine ligase catalytic subunit (GCLC) and mucin-2 (MUC-2) were found in the colon of the HTX-offspring as compared with the Control-offspring. Higher percentages of Th17 lymphocytes were detected in the colon tissues of the HTX-offspring induced or not with UCLD as compared with the Control-offspring. Discussion: Gestational HTX accelerates the onset and increases the intensity of UCLD in the offspring. The low expression of MUC-2 and GCLC together with high levels of Th17 Lymphocytes in the colon tissue suggests that the HTX-offspring has molecular and cellular features that favor inflammation and tissue damage. These results are important evidence to be aware of the impact of gestational HTX as a risk factor for UCLD development in offspring.

Suicide in Colombian anesthesiologists. National survey study / Suicidio en anestesiólogos colombianos. Estudio de encuesta nacional

Abstract Introduction The risk of suicide among anesthesiologists seems to be higher than in other areas of specialization, probably because of the significant stress associated with this specialty, easy access to strong medications and the profound knowledge about the use of these drugs. There is a poor knowledge about the impact of suicide on anesthesiologists in Colombia and the resources available to deal with this situation are limited. Objective This survey is intended to indirectly identify the frequency of suicide among the Colombian anesthesiologists and the experiences associated with the suicide of a colleague. Methods Observational, cross-sectional study based on a survey administered to all the anesthesiologists members of the Colombian Society of Anesthesiology and Resuscitation (S.C.A.R.E.), at a national scale. Results 403 anesthesiologists completed the survey. Eighty (19.8 %) of the respondents said they were aware of the death of at least one colleague that committed suicide. Most of them are male anesthesiologists or intensivists, and the age group with the highest rate of reports is between 25 - 29 years old in males. The primary causal mechanism was opioid overdose (58.5 %). Conclusions In an indirect characterization of suicide among Colombian anesthesiologists, 99 suicide reports were identified corresponding to 80 anesthesiologists. Suicide is preventable and the worksite should provide the support mechanisms required to identify occupational stress, drug dependence, depression and suicide.

Resumen Introducción: El riesgo de suicidio entre anestesiólogos parece ser mayor que el que se presenta en otras especialidades, posiblemente debido al elevado estrés asociado con la especialidad, al fácil acceso a medicamentos potentes y al conocimiento íntimo de cómo usarlos. En Colombia poco se sabe sobre el impacto del suicidio de un colega en un departamento de anestesia y los recursos disponibles para afrontar esta situación. Objetivo: Con esta encuesta se buscó identificar de manera indirecta la frecuencia de suicidio entre anestesiólogos colombianos y las experiencias relacionadas con el suicidio de un colega. Métodos: Estudio observacional de corte transversal de tipo encuesta aplicada a todos los anestesiólogos afiliados a la Sociedad Colombiana de Anestesiología y Reanimación (S.C.A.R.E.) a escala nacional. Resultados: Se obtuvo respuesta de 403 anestesiólogos. Ochenta (19,8 %) participantes indicaron tener conocimiento de la muerte por suicidio de al menos un colega. La mayoría corresponden a anestesiólogos o intensivistas de sexo masculino, y el grupo etario con mayor número de reportes es el de 25 a 29 años para el sexo masculino. El principal mecanismo causal identificado fue la intoxicación por opioides (58,5 %). Conclusiones: En una caracterización indirecta del suicidio en anestesiólogos colombianos se encontraron 99 informes de suicidio reportados por 80 anestesiólogos. El suicidio es prevenible, en los sitios de trabajo deben existir los mecanismos de apoyo para la identificación del estrés laboral, la farmacodependencia, la depresión y el suicidio.

Mortality Due to COVID-19 in Renal Transplant Recipients, Related to Variants of SARS-CoV-2 and Vaccination in Mexico.

BACKGROUND: SARS-CoV-2 infection in transplant patients has shown greater lethality and vaccination in this group of patients has shown less information. The objective of this study is to show the statistics in Mexico of lethality in kidney recipients infected with COVID-19 in relation to vaccination and variants of the coronavirus. METHODS: This is a bibliographic search of kidney transplant recipient patients since the start of the pandemic in Mexico to determine lethality after SARS-CoV-2 compared to the general population and in relation to patients, the 4 most important infectious peaks in the country due to identified variants, and also before and after vaccination. RESULTS: The global lethality is 26.91% from the beginning of the pandemic to April 9, 2022 in kidney recipients in Mexico (130 deaths of 483 infected kidney transplant recipients) compared to the national lethality of 5.60%. Variant B. 1.1.220 represented the highest lethality with 30.43% and the lowest lethality was Omicron with 16.41%. The lethality prior to vaccination was 30.94% and 23.46% after it. CONCLUSION: Both some variants and vaccination have influenced a lower lethality due to COVID-19 in Mexico in kidney transplant patients; It is important to consider global recommendations, such as a third or fourth dose, a combination of mRNA vaccines and vectors in order to reduce lethality in this group of patients.

Factores asociados al cumplimiento de las recomendaciones de actividad física de la Organización Mundial de la Salud, en los adultos de Antioquia - Colombia

Objetivo: Describir los factores asociados al cumplimiento de las recomendaciones de actividad física (AF) de la Organización Mundial de la Salud, en los adultos de Antioquia. Metodología: Se realizó un análisis transversal de la base de datos del "Perfil alimentario y nutricional de Antioquia". La AF se indagó en 2757 adultos (18-64 años), utilizando el "Cuestionario mundial de actividad física" de la Organización Mundial de la Salud. Se hicieron análisis bivariados y multivariados, explorando la relación de variables socioeconómicas, demográficas y de estado nutricional, con el cumplimiento de las recomendaciones de AF. Resultados: Se observó una mayor prevalencia de cumplimiento de las recomendaciones de AF en hombres que mujeres (60,8 vs. 48,0 %; p< 0,001) y en adultos jóvenes (18-29 años) que en mayores de 29 años (66,8 vs. 49,3 %; p< 0,001). Además, se presentó más alta proporción de cumplimiento de las recomendaciones de AF en personas de mayor estrato socioeconómico, mayor nivel educativo y residentes del área urbana. Ser mujer, pertenecer al estrato socioeconómico 1, poseer secundaria o un nivel de educación inferior, y tener como ocupación oficios del hogar se asociaron con una probabilidad menor de cumplir las recomendaciones de AF; por el contrario, ser una persona joven se asocia con un mayor cumplimiento. Conclusión: Son evidentes las desigualdades en el cumplimiento de las recomendaciones de AF por los adultos de Antioquia. Se deben priorizar las mujeres, las personas mayores de 30 años, de bajo estrato socioeconómico y de bajo nivel educativo en los planes y programas orientados a promover la práctica de la AF en el departamento.

Objective: To describe the factors associated with adherence to the World Health Organization's physical activity (PA) recommendations in adults from Antioquia-Colombia. Methodology: A cross-sectional analysis of the database of the "Food and nutritional Profile of Antioquia" was carried out. PA was inquired in 2,757 adults (18-64-year-olds), using the World Health Organization's "Global Physical Activity Questionnaire". Bivariate and multivariate analyses were performed, exploring the relationship between socioeconomic, demographic and nutritional status variables and adherence to PA recommendations. Results: A higher prevalence of adherence to PA recommendations was observed in men compared to women (60.8 vs. 48.0 %; p < 0.001) and in young adults (18-29) compared to in adults older than 29 years of age (66.8 vs. 49.3 %; p < 0.001). In addition, adherence to PA recommendations was higher in people with high socioeconomic status, a high educational level and residents of urban areas. Being a woman, belonging to socioeconomic stratum 1, having high school or a lower level of education, and having as an occupation household chores were associated with a lower probability of adherence to PA recommendations; while being young is associated with greater adherence. Conclusion: Inequalities in adherence to FA recommendations by adults in Antioquia are evident. Women and people over 30 years of age with low socioeconomic status and low educational levels should be prioritized in plans and programs aimed at promoting the practice of PA in the department.

Objetivo: Descrever os fatores associados ao cumprimento das recomendações de atividade física (AF) da Organização Mundial da Saúde, nos adultos de Antioquia. Metodologia: Realizou-se uma análise transversal da base de dados do "Perfil alimentar e nutricional de Antioquia". A AF indagou-se em 2757 adultos (18-64 anos), usando o "Questionário mundial de atividade física" da Organização Mundial da Saúde. Fizeram-se análises bivariadas e multivariadas, explorando a relação de variáveis socioeconômicas, demográficas e de estado nutricional, com o cumprimento das recomendações de AF. Resultados: Observou-se uma maior prevalência de cumprimento das recomendações de AF em homens do que em mulheres (60,8 vs. 48,0%; p>0,001) e em jovens adultos (18-29 anos) do que em maiores de 29 anos (66,8 vs. 49,3%; p>0,001). Além disso, apresentou-se proporção mais alta de cumprimento das recomendações de AF em pessoas de mais alto estrato socioeconômico, maior nível educativo e residentes da área urbana. Ser mulher, pertencer ao estrato socioeconômico 1, possuir grau de secundária ou um nível inferior de educação e ter como ocupação trabalhos do lar associaram-se com uma probabilidade menor de cumprir as recomendações de AF; pelo contrário, ser uma pessoa jovem associa-se com um maior cumprimento. Conclusão: São evidentes as desigualdades no cumprimento das recomendações de AF pelos adultos de Antioquia. Devem-se priorizar as mulheres, as pessoas maiores de 30 anos, de estrato socioeconômico baixo e de baixo nível educativo nos planos e programas orientados a promover a prática da AF no departamento.

Prácticas alimentarias de familias afrodescendientes con niños en primera infancia en el oriente de Cali / Food practices of afro-descendant families with kids in early childhood living in eastern Cali / Práticas alimentares de famílias afrodescendentes com crianças em primeira infância no oriente de Cali

Resumen Objetivo: describir las prácticas alimentarias de 50 familias afrodescendientes con niños y/o niñas de primera infancia que asisten a un Centro de Desarrollo Infantil (CDI) en el Oriente de Cali. Materiales y métodos: Estudio cuantitativo, descriptivo y de corte transversal. Se aplicó un cuestionario a 50 cuidadores de niños o niñas que asistieron al CDI Potrero Grande del oriente de Cali. El cuestionario fue estructurado con preguntas de múltiple elección con base en tres ejes de la seguridad alimentaria: acceso, consumo e inocuidad; adicionalmente un cuestionario de frecuencia de consumo de alimentos. Resultados: 70 % se autorreconoció como afrodescendiente, 63 % procedía principalmente de la costa del sur occidente colombiano, con nivel educativo básico. El 87,5 % se dedicaba exclusivamente al hogar. En el 85 % de los hogares la madre es la encargada de preparar los alimentos, el aporte de proteína animal del 70 % de los hogares, proviene principalmente del huevo cuyo consumo fue diario, el 94 % de las madres expresaron que sus familias nunca consumieron brócoli, coliflor, alverja verde, espinacas, ullucos, repollo y el 95 % de las personas refirieron que se lavan las manos antes de preparar los alimentos. Conclusiones: la dieta no es variada y se basa en alimentos fuentes de carbohidratos principalmente el arroz, papa y los plátanos verdes y maduros, que se consumen cocidos y fritos, al igual que los alimentos fuentes de proteína. El análisis de la ingesta sugiere que no se consumen alimentos característicos del lugar de procedencia como los pescados y/o mariscos.

Abstract Objective: To describe the eating practices of 50 Afro-descendant families with early childhood kids who attend a Child Development Center -CDC- in eastern Cali. Materials and methods: Quantitative, descriptive, and crosssectional study. A questionnaire was applied to 50 caregivers of children who attended the CDI Potrero Grande in eastern Cali. The questionnaire was structured with multiple choice questions based on three axes of food security: access, consumption and safety. Additionally, a food consumption frequency questionnaire was applied. Results: Seventy percent of the participants self-recognized as Afro-descendant, 63% came mainly from the southwestern coast of Colombia with a basic educational level, and 87.5% were dedicated exclusively to the home. The mother was in charge of preparing the food in 85% of the homes. Animal protein contribution of 70% of the homes comes mainly from eggs with daily consumption. A total of 94% of the mothers expressed that their families never consumed broccoli, cauliflower, green peas, spinach, manioc or cabbage and 95% of the people reported that they washed their hands before preparing food. Conclusions: The diet is not varied and is based on carbohydrate source food mainly rice, potatoes and green and ripe bananas which are consumed boiled and fried, as well as protein sources. The analysis of the intake suggests that characteristic foods of the place of origin such as fish and/ or shellfish are not consumed.

Resumo Objetivo: descrever as práticas alimentares de 50 famílias afrodescendentes com meninos e/ou meninas de primeira infância que vão a um Centro de Desenvolvimento Infantil (CDI) no Oriente de Cali. Materiais e métodos: estudo quantitativo, descritivo e de corte transversal. Se fez um questionário a 50 cuidadores de meninos ou meninas que foram ao CDI Potrero Grande do oriente de Cali. O questionário foi estruturado com preguntas de múltiplo eleição com base em três eixos da segurança alimentar: aceso, consumo e inocuidade; adicionalmente um questionário de frequência de consumo de alimentos. Resultados: 70 % se auto reconheceu como afrodescendente, 63 % procedia principalmente do litoral do sudoeste colombiano, com nível educativo básico. O 87,5 % se dedicava exclusivamente ao lar. No 85 % dos lares a mãe é a encarregada de preparar os alimentos, a proteína animal do 70 % dos lares, provem principalmente do ovo cujo consumo foi diário, o 94 % das mães disseram que suas famílias nunca comeram brócolis, couve-flor, ervilhas, espinafre, ullucos, repolho e o 95 % das pessoas disseram que se lavam as mãos antes de preparar os alimentos. Conclusões: a dieta não é variada e baseada em alimentos fontes de carboidratos principalmente o arroz, batata e os plâtanos verdes e maduros, que se consumem cozidos e fritos, ao igual que os alimentos fontes de proteína. A análise da ingesta sugere que não se consumem alimentos característicos do lugar de procedência como os pescados e/ou mariscos.