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Study Design: This was a retrospective longitudinal observational study. Purpose: The purpose of this study was to analyze the results of cervical sagittal parameters on preoperative and postoperative lateral radiographs in anterior cervical discectomy and fusion (ACDF). ACDF is believed to change craniocervical parameters and thus cervical curvature using polyetheretherketone (PEEK) or titanium cages with or without self-locking as well as an anterior plate, the latter of which has not been shown to provide better clinical or radiological results. Overview of Literature: Cervical spondylotic myelopathy (CSM) is a common degenerative pathology that can affect one or more levels and treatment has varied over time trying to maintain sagittal parameters within acceptable values where the ACDF is the main treatment. Materials and Methods: The study was performed in patients with CSM who underwent anterior cervical discectomy, and their pre- and postoperative radiographs were analyzed using Surgimap software a few days before and 3 months after surgery. Results: Fifteen files were included in the study. Statistically significant sagittal balance variables were observed in cervical lordosis (CL) with an increase of 4.73° (P = 0.019) and T1 slope (T1S)-CL with a decrease of -5.93° (P = 0.007). Conclusions: CL and T1S-CL showed favorably modified values when performing ACDF using stand-alone PEEK cages without the need for self-blocking or an anterior plate.

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Objetivo: desarrollar un puntaje predictivo de mortalidad para pacientes con covid-19. Materiales y méto-dos: estudio retrospectivo, analítico, observacional y transversal, realizado en dos fases. Se revisaron 620 historias clínicas con una cohorte de derivación de 320 pacientes y una de validación de 300 pacientes. Las variables se analizaron con test de Anova, chi cuadrado de Pearson y análisis multivariante con regresión binaria, que determinaron sensibilidad, especificidad y valor predictivo negativo y positivo. Los puntajes se compararon mediante curvas cor con los scoresnews y hews. Resultados: los dos puntajes obtenidos incluyeron valores de edad, conteo de linfocitos, SatO2/FiO2, leucocitos, plaquetas, ausencia de síntomas, hipertensión arterial, epid y dhl. El área bajo la curva (abc) fue de 0.838 para el puntaje con dhl, con una mortalidad del 100 % para 7.75 puntos o más, y un abc de 0.826 para el primer puntaje. En la cohorte de validación, el abc para el primer puntaje fue de 0.831 y para el score con dhl fue 0.855. El puntaje hewsobtuvo un abc de 0.451, y el news, un abc de 0.396. Conclusiones: se desarrollaron dos herramientas para predecir mortalidad en pacientes con covid-19, con alto poder de discriminación, superior a los puntajes británicos hews y news

Objetivo: desarrollar un puntaje predictivo de mortalidad para pacientes con covid-19. Materiales y méto-dos: estudio retrospectivo, analítico, observacional y transversal, realizado en dos fases. Se revisaron 620 historias clínicas con una cohorte de derivación de 320 pacientes y una de validación de 300 pacientes. Las variables se analizaron con test de Anova, chi cuadrado de Pearson y análisis multivariante con regresión binaria, que determinaron sensibilidad, especificidad y valor predictivo negativo y positivo. Los puntajes se compararon mediante curvas cor con los scoresnews y hews. Resultados: los dos puntajes obtenidos incluyeron valores de edad, conteo de linfocitos, SatO2/FiO2, leucocitos, plaquetas, ausencia de síntomas, hipertensión arterial, epid y dhl. El área bajo la curva (abc) fue de 0.838 para el puntaje con dhl, con una mortalidad del 100 % para 7.75 puntos o más, y un abc de 0.826 para el primer puntaje. En la cohorte de validación, el abc para el primer puntaje fue de 0.831 y para el score con dhl fue 0.855. El puntaje hewsobtuvo un abc de 0.451, y el news, un abc de 0.396. Conclusiones: se desarrollaron dos herramientas para predecir mortalidad en pacientes con covid-19, con alto poder de discriminación, superior a los puntajes británicos hews y news

Objetivo: desenvolver um escore preditivo de mortalidade para pacientes com covid-19. Materiais e Métodos: estudo retrospectivo, analítico, observacional e transversal, realizado em duas fases. Foram revisados 620 prontuários, com uma coorte de derivação de 320 pacientes e uma coorte de validação de 300 pacientes. As variáveis foram analisadas com teste anova, qui-quadrado de Pearson e análise multivariada com regressão binária, determinando sensibilidade, especificidade, valor preditivo nega-tivo e positivo. As pontuações foram comparadas por meio de curvas cor com as pontuações news e hews. Resultados: os dois escores obtidos incluíram valores de: idade, contagem de linfócitos, SatO2/FiO2, leucócitos, plaquetas, ausência de sintomas, hipertensão arterial, epid e dhl. A área sob a curva (abc) foi de 0,838 para o escore dhl, com 100 % de mortalidade para 7,75 pontos ou mais, e uma abc de 0,826 para o primeiro escore. Na coorte de validação, a abc para o primeiro escore foi de 0,831 e para o escore com dhl foi de 0,855. A pontuação hews obteve abc de 0,451 e o news uma abc de 0,396. Conclusões: foram desenvolvidas duas ferramentas para prever mortalidade em pacientes com covid-19, com alto poder de discriminação, superior aos escores britânicos hews e news

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The aim of this study was to determine the association between oral health-related quality of life (OHRQoL) and social marginalization in people aged 60 years and older enrolled in social security in Mexico. A cross-sectional and analytical study was carried out in older adults. To assess the OHRQoL, the OHIP-14 instrument was applied, and the degree of social marginalization and sociodemographic characteristics were analyzed. Measures of central tendency and dispersion, simple frequencies and proportions were estimated. Student's t-test was used for comparison of means, and prevalence ratio (PR) and logistic regression were used to assess associations, all with a significance value of 0.05 and 95% confidence intervals. Perceived OHRQoL in the population measured through the OHIP-14 reached an average value of 9.84 ± 8.91, with the highest value in the dimension of physical pain (2.06 ± 1.91). Perceived treatment need was higher among people with social marginality (p = 0.011). The multivariate analysis shows that marginalized people have a lower OHRQoL. Socially marginalized older adults showed a low a better perception of OHRQoL, independent of demographic and clinical factors.

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Resumen Objetivo: Se estimó la carga económica directa e indirecta de la hipercolesterolemia en población con alto riesgo de presentar un evento cardiovascular. Para ello se definieron específicamente cinco grupos de pacientes: 1) aquellos con hipercolesterolemia familiar; 2, 3 y 4) personas con hipercolesterolemia más el antecedente de diabetes, infarto o evento vascular cerebral; 5) pacientes con hipercolesterolemia más diabetes y antecedente de infarto agudo de miocardio (definidos como pacientes de muy alto riesgo cardiovascular). Los cálculos se hicieron desde la perspectiva de las instituciones de salud pública en México. Método: Para la estimación de los costos directos se incluyó la atención ambulatoria, el tratamiento farmacológico, la atención hospitalaria y las intervenciones quirúrgicas relacionadas con las enfermedades cardiovasculares. Para la carga económica indirecta, se consideraron las muertes reportadas específicamente por causa de hipercolesterolemia, en un momento anterior al final de la edad productiva (muerte prematura). Resultados: La carga económica directa de las cinco categorías de pacientes en riesgo consideradas es de MXN $39,601,464,154 (USD $1,987,526,432), mientras que la carga económica indirecta asciende a MXN $121,646,689 (USD $6,105,229). Conclusiones: El impacto económico de la hipercolesterolemia en población con alto riesgo cardiovascular correspondía a $39,723,110,843 en 2020 (equivalente a USD $1,993,631,661), equivalente al 0.16% del PIB nacional.

Abstract Objective: To estimate the direct and indirect economic burden of hypercholesterolemia in patients with high risk of a cardiovascular event, specifically there were defined 5 groups of patients: 1) familial hypercholesterolemia; 2, 3 and 4) patients with hypercholesterolemia and background of diabetes, myocardial infarction or stroke; 5) diabetes, myocardial infarction and hypercholesterolemia (very high-risk patients) from the Mexican public healthcare institutions. Methods: For the estimation of the direct costs the items included correspond to: outpatient care, pharmacological treatment, inpatient hospital care, and surgical procedures. For indirect economic burden, death certificates, before the end of the productive age due to hypercholesterolemia were calculated (premature mortality). Results: The direct economic burden for the 5 groups of patients at risk is MXN $39,601,464,154 (USD $1,987,526,432), while the indirect economic burden amounts to MXN $121,646,689 (USD $6,105,229). Conclusions: The economic impact of hypercholesterolemia in patients with high cardiovascular risk is $39,723,110,843 (equivalent to USD $1,993,631,661) and corresponds to the 0.16% of GDP.

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OBJECTIVE: To estimate the direct and indirect economic burden of hypercholesterolemia in patients with high risk of a cardiovascular event, specifically there were defined 5 groups of patients: 1) familial hypercholesterolemia; 2, 3 and 4) patients with hypercholesterolemia and background of diabetes, myocardial infarction or stroke; 5) diabetes, myocardial infarction and hypercholesterolemia (very high-risk patients) from the Mexican public healthcare institutions. METHODS: For the estimation of the direct costs the items included correspond to: outpatient care, pharmacological treatment, inpatient hospital care, and surgical procedures. For indirect economic burden, death certificates, before the end of the productive age due to hypercholesterolemia were calculated (premature mortality). RESULTS: The direct economic burden for the 5 groups of patients at risk is MXN $39,601,464,154 (USD $1,987,526,432), while the indirect economic burden amounts to MXN $121,646,689 (USD $6,105,229). CONCLUSIONS: The economic impact of hypercholesterolemia in patients with high cardiovascular risk is $39,723,110,843 (equivalent to USD $1,993,631,661) and corresponds to the 0.16% of GDP.

OBJETIVO: Se estimó la carga económica directa e indirecta de la hipercolesterolemia en población con alto riesgo de presentar un evento cardiovascular. Para ello se definieron específicamente cinco grupos de pacientes: 1) aquellos con hipercolesterolemia familiar; 2, 3 y 4) personas con hipercolesterolemia más el antecedente de diabetes, infarto o evento vascular cerebral; 5) pacientes con hipercolesterolemia más diabetes y antecedente de infarto agudo de miocardio (definidos como pacientes de muy alto riesgo cardiovascular). Los cálculos se hicieron desde la perspectiva de las instituciones de salud pública en México. MÉTODO: Para la estimación de los costos directos se incluyó la atención ambulatoria, el tratamiento farmacológico, la atención hospitalaria y las intervenciones quirúrgicas relacionadas con las enfermedades cardiovasculares. Para la carga económica indirecta, se consideraron las muertes reportadas específicamente por causa de hipercolesterolemia, en un momento anterior al final de la edad productiva (muerte prematura). RESULTADOS: La carga económica directa de las cinco categorías de pacientes en riesgo consideradas es de MXN $39,601,464,154 (USD $1,987,526,432), mientras que la carga económica indirecta asciende a MXN $121,646,689 (USD $6,105,229). CONCLUSIONES: El impacto económico de la hipercolesterolemia en población con alto riesgo cardiovascular correspondía a $39,723,110,843 en 2020 (equivalente a USD $1,993,631,661), equivalente al 0.16% del PIB nacional.

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BACKGROUND: The impact of diabetes mellitus has been shown to be differentially expressed between social groups. OBJECTIVE: To estimate inequality gaps in diabetes mellitus mortality through absolute and relative measures according to geographic distribution and social conditions. MATERIAL AND METHODS: Diabetes mellitus-related deaths recorded in Mexico between 2010 and 2019 were analyzed, and inequality measurements at the state level were calculated by gender. RESULTS: National age-adjusted diabetes mellitus mortality rate showed an increase during the study period. CONCLUSION: The inequalities present in diabetes mortality should be considered for the design of health strategies.

ANTECEDENTES: Se ha demostrado que el impacto de la diabetes mellitus se expresa de manera diferenciada entre los grupos sociales. OBJETIVO: Estimar las brechas en la desigualdad en la mortalidad por diabetes mellitus a través de medidas absolutas y relativas según distribución geográfica y condiciones sociales. MATERIAL Y MÉTODOS: Se analizaron las muertes registradas en México por diabetes mellitus entre 2010 y 2019 y se calcularon las mediciones de desigualdad a nivel estatal por sexo. RESULTADOS: La tasa de mortalidad nacional por diabetes mellitus ajustada por edad mostró un incremento durante el periodo estudiado. CONCLUSIÓN: Las desigualdades presentes en la mortalidad por diabetes deben considerarse para el diseño de estrategias de salud.

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BACKGROUND: Diabetes is a significant health problem that affects quality of life in the medium and long term. OBJECTIVE: To identify the association between quality of life with comorbidity, metabolic control, and lifestyle in patients with type 2 diabetes. METHOD: A cross-sectional study was performed in 392 patients. Glycosylated hemoglobin, fasting glucose, lipid profile, blood pressure, weight, waist circumference and body composition were measured. Diabetic neuropathy, renal disease, visual health, diet and physical exercise were measured. Health-related quality of life (HRQoL) was measured with the 36-item Short Form survey (SF-36). RESULTS: The mean age was 54.6 years, 68 % were women, median years of diabetes diagnosis was 7 years. Eighty percent had a good HRQoL (SF-36 ≥ 50). The dimension with the highest score was physical function (81.0), and vitality the lowest (46.5). Body fat was associated with more impairments in the SF-36 dimensions (p < 0.05). Factors associated with worse HRQOL are physical inactivity (odds ratio [OR]: 2.7; 95% confidence interval [95%CI]: 1.10-6.62; p = 0.009), arterial hypertension (OR: 1.78; 95% CI: 1.05-3.02; p = 0.032) and being female (OR: 2.7; 95% CI: 1.45-5.27; p = 0.002). CONCLUSIONS: Poor quality of life is associated with higher fat percentage, physical inactivity and hypertension in patients with type 2 diabetes.

ANTECEDENTES: La diabetes es un importante problema de salud que afecta la calidad de vida a mediano y largo plazo. OBJETIVO: Identificar la asociación entre la calidad de vida y la comorbilidad, el control metabólico y el estilo de vida de pacientes con diabetes tipo 2. MÉTODO: Se realizó un estudio transversal en 392 pacientes. Se midieron la hemoglobina glucosilada, la glucosa de ayuno, el perfil de lípidos, la presión arterial, el peso, la circunferencia de la cintura y la composición corporal. Se evaluaron la neuropatía diabética, la enfermedad renal, la salud visual, la dieta y el ejercicio físico. La calidad de vida relacionada con la salud (CVRS) se midió con la encuesta en su versión corta de 36 ítems (SF-36). RESULTADOS: La edad promedio fue de 54.6 años, el 68% fueron mujeres y la mediana de años de diagnóstico de diabetes fue de 7 años. Un 80% tienen una buena CVRS (SF-36 ≥ 50). La dimensión con mayor puntaje fue función física (81.0), y la más baja fue vitalidad (46.5). La grasa corporal se asoció a más afectaciones en las dimensiones del SF-36 (p < 0.05). Los factores asociados a una peor CVRS son la inactividad física (odds ratio [OR]: 2.7; intervalo de confianza del 95% [IC95%]: 1.10-6.62; p = 0.009), la hipertensión arterial (OR: 1.78; IC95%: 1.05-3.02; p = 0.032) y ser mujer (OR: 2.7; IC95%: 1.45-5.27; p = 0.002). CONCLUSIONES: Una pobre calidad de vida se asocia con mayor porcentaje de grasa, inactividad física e hipertensión en pacientes con diabetes tipo 2.

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Resumen Antecedentes: Se ha demostrado que el impacto de la diabetes mellitus se expresa de manera diferenciada entre los grupos sociales. Objetivo: Estimar las brechas en la desigualdad en la mortalidad por diabetes mellitus a través de medidas absolutas y relativas según distribución geográfica y condiciones sociales. Material y métodos: Se analizaron las muertes registradas en México por diabetes mellitus entre 2010 y 2019 y se calcularon las mediciones de desigualdad a nivel estatal por sexo. Resultados: La tasa de mortalidad nacional por diabetes mellitus ajustada por edad mostró un incremento durante el periodo estudiado. Conclusión: Las desigualdades presentes en la mortalidad por diabetes deben considerarse para el diseño de estrategias de salud.

Abstract Background: The impact of diabetes mellitus has been shown to be differentially expressed between social groups. Objective: To estimate inequality gaps in diabetes mellitus mortality through absolute and relative measures according to geographic distribution and social conditions. Material and methods: Diabetes mellitus-related deaths recorded in Mexico between 2010 and 2019 were analyzed, and inequality measurements at the state level were calculated by gender. Results: National age-adjusted diabetes mellitus mortality rate showed an increase during the study period. Conclusion: The inequalities present in diabetes mortality should be considered for the design of health strategies.

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Background: The impact of diabetes mellitus has been shown to be differentially expressed between social groups. Objective: To estimate inequality gaps in diabetes mellitus mortality through absolute and relative measures according to geographic distribution and social conditions. Material and methods: Diabetes mellitus-related deaths recorded in Mexico between 2010 and 2019 were analyzed, and inequality measurements at the state level were calculated by gender. Results: National age-adjusted diabetes mellitus mortality rate showed an increase during the study period. Conclusion: The inequalities present in diabetes mortality should be considered for the design of health strategies.

Antecedentes: Se ha demostrado que el impacto de la diabetes mellitus se expresa de manera diferenciada entre los grupos sociales. Objetivo: Estimar las brechas en la desigualdad en la mortalidad por diabetes mellitus a través de medidas absolutas y relativas según distribución geográfica y condiciones sociales. Material y métodos: Se analizaron las muertes registradas en México por diabetes mellitus entre 2010 y 2019 y se calcularon las mediciones de desigualdad a nivel estatal por sexo. Resultados: La tasa de mortalidad nacional por diabetes mellitus ajustada por edad mostró un incremento durante el periodo estudiado. Conclusión: Las desigualdades presentes en la mortalidad por diabetes deben considerarse para el diseño de estrategias de salud.

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Abstract The aim of this study was to determine the association between oral health-related quality of life (OHRQoL) and social marginalization in people aged 60 years and older enrolled in social security in Mexico. A cross-sectional and analytical study was carried out in older adults. To assess the OHRQoL, the OHIP-14 instrument was applied, and the degree of social marginalization and sociodemographic characteristics were analyzed. Measures of central tendency and dispersion, simple frequencies and proportions were estimated. Student's t-test was used for comparison of means, and prevalence ratio (PR) and logistic regression were used to assess associations, all with a significance value of 0.05 and 95% confidence intervals. Perceived OHRQoL in the population measured through the OHIP-14 reached an average value of 9.84 ± 8.91, with the highest value in the dimension of physical pain (2.06 ± 1.91). Perceived treatment need was higher among people with social marginality (p = 0.011). The multivariate analysis shows that marginalized people have a lower OHRQoL. Socially marginalized older adults showed a low a better perception of OHRQoL, independent of demographic and clinical factors.

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Background: Pediatric intracranial aneurysms (PIAs) are uncommon. Flow diverters (FDs) have shown to be effective on treatment of selected aneurysms. Methods: We describe 10 cases of PIAs treated with FDs at one medical center in Mexico, from April 2015 to April 2020. Results: Out of 230 patients treated with FDs, 10 (4.3%) were pediatric. Average age was 9.4 years old (R: 6-15). Two patients (20%) had subarachnoid hemorrhage, 3 had epilepsy (30%), 3 (30%) had clinical signs of cranial nerve compression, and 4 (40%) had only headache. Two patients were in 1a grade of Hunt and Kosnik scale. Out of the nonruptured aneurysms, 7 (70%) were in 15 points of Glasgow Coma Scale and 1 patient (10%) was in 13 points. Treatment was performed without complications; nevertheless, appropriate distal deployment was not achieved in one case. At discharge, nine patients had 5 points of Glasgow Outcome Scale. All patients underwent computed tomography angiography or digital subtraction angiography at 1, 3, 6, and 12 months, 2 patients (20%) had a 2-year follow-up, and 3 patients (30%) had a 3-year follow-up. According to Kamran grading scale, 9 patients (90%) were classified as Grade 4 and 1 patient (10%) as Grade 3. Conclusion: Even though it is a small series, as this is an uncommon disease, we may suggest that FDs are useful to treat properly selected PIAs. Our study has consecutive imaging assessment at least a year of follow-up in which aneurysm stable occlusion was observed in 90% of patients.

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Post-polypectomy syndrome (PPS) is a complication that may arise after some colonoscopy procedures that require electrocoagulation, due to a transmural burn, which irritates the serous membrane. Its clinical presentation is similar to the one of intestinal perforation, but it has a favorable prognosis, and does not require surgical treatment. We report the case of a 55-year-old woman diagnosed with a polyp in the ascending colon, who was admitted for an endoscopic resection. After the procedure, she complained of nausea, emesis and abdominal pain in the right iliac fossa. She was transferred to the emergency department. An abdominal tomography showed cecal wall thickening without pneumoperitoneum. Therefore, the diagnosis of PPS was made and was managed with bowel rest, parenteral fluids and antibiotics, with full recovery. Despite of its low incidence, it is important to suspect this syndrome to avoid unnecessary surgical treatment and initiate medical management right away.

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BACKGROUND: Dementia is a priority public health issue due to its high prevalence worldwide and its economic, social, and health impact. However, there are few reports in Mexico based on formal tests and with a clinical approach based on the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5). OBJECTIVE: This study estimates the prevalence of the main types of dementia among elderly people living in the community in Mexico City. METHODS: A population-based, two-step study was conducted, including 6,204 elderly individuals aged 60 or above with in-home assessment. All participants were screened for cognitive impairment; those who presented some cognitive problem underwent a standardized neurological examination. Each diagnosis was based on the criteria for dementia in the DSM-5, and the final consensus diagnosis of dementia was determined by an expert panel. RESULTS: The global estimated prevalence of dementia in the Mexican population was 7.8% met the criteria for Alzheimer's disease, 4.3% for vascular dementia, and 2.1% for mixed dementia. The prevalence of dementia was higher in women than in men (15.3% versus 12.5%, respectively). CONCLUSION: These results provide evidence to propose strategies for Latin American countries where dementia represents a challenge due to the heterogeneity of the populations and socioeconomic disparities, requiring early diagnosis and at the first levels of care.

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Background: Hemangioblastomas are benign tumors that develop in the central nervous system. They represent 1.5-2.5% of all intracranial tumors, and about 2-15% of all spinal cord tumors. They are highly associated with von Hippel-Lindau disease. Case Description: A 36-year-old female presented with a 4-year history of progressive right upper extremity distal weakness and cervical pain. The magnetic resonance imaging demonstrated a homogeneously, contrast enhancing intradural/intramedullary tumor at C6-C7 with perilesional edema and a syrinx accompanied by a cerebellar cyst with a mural nodule. Surgery included excision of the spinal lesion and decompression and excision of the cerebellar cyst and mural nodule (i.e., median suboccipital craniectomy and cervical C5-C7 laminectomy). Conclusion: Surgery is the gold standard treatment for symptomatic hemangioblastomas, and surgical approaches should minimize risk.

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Durante la pandemia del COVID-19, los médicos se enfrentaron a una admisión masiva sin precedentes de pacientes con neumonía atípica viral. El objetivo del estudio fue comparar las características clínicas de la primera y segunda ola de la pandemia. Se realizó un estudio observacional analítico de los pacientes con neumonía COVID-19 que ingresaron al Hospital Carrión de Huancayo, Perú ubicado a más de 3000 msnm. Se determinaron 2 periodos de estudio, el grupo uno representado por la primera ola caracterizado por la restricción masiva y cuarentena estricta y la segunda ola donde las actividades productivas ya se habían normalizado en gran proporción. De un total de 252 pacientes con COVID-19, la edad promedio fue 56 años en la primera ola y 52 años en la segunda ola, el sexo masculino fue más frecuente en ambos 74% y 57%, la mortalidad fue 27% y 23%, el tiempo de enfermedad fue 8 días y 10 días, respectivamente. Por otro lado, el porcentaje del uso de antibióticos, ivermectina e hidroxicloroquina fue más elevado en la primera ola. El uso de corticoides y la estancia hospitalaria prolongada fueron más frecuente en la segunda ola. La comparación de ambas olas muestra diferencias en la edad, mortalidad y tiempo de enfermedad, que puede deberse a las nuevas variantes moleculares del SARS-COV-2(AU)

During the COVID-19 pandemic, doctors faced an unprecedented mass admission of patients with viral atypical pneumonia. The objective of the study was to compare the clinical characteristics of the first and second waves of the pandemic. An analytical observational study was carried out on patients with COVID-19 pneumonia who were admitted to Hospital Carrión de Huancayo, Peru located at more than 3000 meters above sea level. Two study periods were determined, group one represented by the first wave characterized by massive restriction and strict quarantine and the second wave where productive activities had already normalized to a great extent. Of a total of 252 patients with COVID-19, the average age was 56 years in the first wave and 52 years in the second wave, the male sex was more frequent in both 74% and 57%, mortality was 27% and 23 %, the time of illness was 8 days and 10 days, respectively. On the other hand, the percentage of use of antibiotics, ivermectin and hydroxychloroquine was higher in the first wave. The use of corticosteroids and prolonged hospital stay was more frequent in the second wave. Comparison of both waves shows differences in age, mortality and time of illness, which may be due to the new molecular variants of SARS-COV-2(AU)

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INTRODUCTION: Objective: the aim of this study was to identify dietary patterns in a sample of patients with type-2 diabetes, and to evaluate their association with markers of metabolic control. Methods: a cross-sectional study in 395 patients with type-2 diabetes in primary care was conducted. Fasting blood levels of glycated hemoglobin (A1c), glucose, total cholesterol, low- (LDL-c) and high-density lipoprotein cholesterol (HDL-c), and triglycerides were measured. Waist circumference, body mass index (BMI), and blood pressure were evaluated. Dietary intake was assessed by a food frequency questionnaire, and dietary patterns were derived by cluster analysis. Three dietary patterns were identified: 'fruits and vegetables', 'dairy and sweetened beverages', and 'diverse with alcohol'. Results: an association between the 'dairy and sweetened beverages' dietary pattern and A1c levels was identified (ß = 0.61; 95 % CI: 0.09, 1.12, p = 0.021), considering the 'fruits and vegetables' dietary pattern as the reference group. We also observed a trend towards an adjusted increased risk of A1c ≥ 7 % (odds ratio [OR]: 1.56; 95 % CI: 0.92, 2.64; p = 0.099) and an increased risk of BMI ≥ 25 kg/m2 (OR: 2.62, 95 % CI: 1.20, 5.71, p = 0.015) among patients in the 'dairy and sweetened beverages' dietary pattern as compared to the reference group. Conclusions: a dietary pattern characterized by a high intake of full-fat dairy and sweetened beverages was associated with higher A1c levels and increased risk of high glucose and BMI when compared to a dietary pattern with a higher consumption of fruits and vegetables.

INTRODUCCIÓN: Objetivo: el objetivo de este estudio fue identificar los patrones dietéticos de una muestra de pacientes con diabetes de tipo 2 y evaluar su asociación con los marcadores de control metabólico. Métodos: se realizó un estudio transversal de 395 pacientes con diabetes de tipo 2 en atención primaria. Se estimaron los niveles de hemoglobina glicosilada (A1c), glucosa, colesterol total, colesterol de lipoproteínas de baja (LDL-c) y alta densidad (HDL-c), y triglicéridos en ayunas. Se evaluaron el perímetro de la cintura, el índice de masa corporal (IMC) y la presión arterial. La ingesta dietética se evaluó mediante un cuestionario de frecuencia de alimentos y los patrones dietéticos se obtuvieron mediante un análisis de conglomerados. Se identificaron tres patrones dietéticos: "frutas y verduras", "lácteos y bebidas azucaradas" y "diversos con alcohol". Resultados: se identificó una asociación entre el patrón dietético de "productos lácteos y bebidas azucaradas" y los niveles de A1c (ß = 0,61; IC del 95 %: 0,09, 1,12, p = 0,021), considerando el patrón dietético de "frutas y verduras" como grupo de referencia. También se observó una tendencia a un mayor riesgo ajustado de A1c ≥ 7 % (odds ratio [OR]: 1,56; IC del 95 %: 0,92, 2,64; p = 0,099) y un mayor riesgo de IMC ≥ 25 kg/m2 (OR: 2,62; IC del 95 %: 1,20, 5,71, p = 0,015) entre los pacientes del patrón "lácteos y bebidas azucaradas" en comparación con el grupo de referencia. Conclusiones: el patrón dietético caracterizado por un alto consumo de lácteos y bebidas azucaradas se asoció con niveles más altos de A1c y un mayor riesgo de elevación de la glucosa y el IMC, en comparación con un patrón dietético con mayor consumo de frutas y verduras.

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OBJECTIVE: To identify the association of diabetes education or medical nutrition therapy with the goals of control of cardiovascular risk indicators and dietary habits in patients with type 2 diabetes mellitus. METHODS: Analytical cross-sectional study in 395 primary care patients. HbA1c, fasting glucose and lipid profile, blood pressure, weight, waist circumference, and body composition were measured. Dietary habits were measured using the «Instrument for measuring lifestyle in patients with type 2 diabetes mellitus¼ (IMEVID), in the nutrition dimension. Medical nutrition therapy (MNT) and diabetes education (DE) were considered as received by the patient when provided in their healthcare clinic. RESULTS: Women comprised 68% of the patients, with a median of 6 years from diabetes diagnosis. Of the patients, 21% received DE and MNT, 28% DE or MNT, and 51% received neither. The HbA1c was lower in the patients with DE and MNT (7.7% ± 1.9% vs. 8.7% ± 2.3%, 8.4% ± 2.2%; p = .003) respectively. In the patients with DE and MNT, a higher proportion took physical exercise, consumed less tobacco, and had better dietary habits (p < .05). Patients who received DE and MNT achieved HbA1c and HDL-c control levels. A greater risk of HbA1c > 7% was identified when they only received DE or MNT or neither, a longer time since diagnosis of the disease and less frequent adherence to a diet to control the disease (p < .05). CONCLUSION: Diabetes education and medical nutritional therapy favour the goal of cardiovascular risk control and better dietary habits in the patient with type 2 diabetes.

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Myotonic dystrophy type 1 (DM1), the most frequent inherited muscular dystrophy in adults, is caused by the CTG repeat expansion in the 3'UTR of the DMPK gene. Mutant DMPK RNA accumulates in nuclear foci altering diverse cellular functions including alternative splicing regulation. DM1 is a multisystemic condition, with debilitating central nervous system alterations. Although a defective neuroglia communication has been described as a contributor of the brain pathology in DM1, the specific cellular and molecular events potentially affected in glia cells have not been totally recognized. Thus, to study the effects of DM1 mutation on glial physiology, in this work, we have established an inducible DM1 model derived from the MIO-M1 cell line expressing 648 CUG repeats. This new model recreated the molecular hallmarks of DM1 elicited by a toxic RNA gain-of-function mechanism: accumulation of RNA foci colocalized with MBNL proteins and dysregulation of alternative splicing. By applying a microarray whole-transcriptome approach, we identified several gene changes associated with DM1 mutation in MIO-M1 cells, including the immune mediators CXCL10, CCL5, CXCL8, TNFAIP3, and TNFRSF9, as well as the microRNAs miR-222, miR-448, among others, as potential regulators. A gene ontology enrichment analyses revealed that inflammation and immune response emerged as major cellular deregulated processes in the MIO-M1 DM1 cells. Our findings indicate the involvement of an altered immune response in glia cells, opening new windows for the study of glia as potential contributor of the CNS symptoms in DM1.

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RESUMEN Objetivo: Identificar a la velocidad de progresión de la enfermedad como un predictor de severidad en pacientes con síndrome de Guillain-Barré (SGB). Materiales y métodos: Estudio observacional prospectivo que incluyó pacientes con diagnóstico confirmado de SGB entre mayo y agosto de 2019 en cuatro hospitales del Perú. La velocidad de progresión de la enfermedad (VPE) fue definido como el tiempo transcurrido entre el inicio de los síntomas neurológicos y el pico máximo de la severidad neurológica. Resultados: De 94 casos con SGB, la edad promedio fue 42 años; 73 (77,8%) pacientes presentaron SGB severo, la estancia hospitalaria promedio fue 18,4 días; 45 (47,8%) pacientes presentaron cuadro diarreico previo; 63 (67,1%) pacientes presentaron un inicio de debilidad motora en miembros superiores y 31 (32,9%) en miembros inferiores; 9 (10,0%) pacientes presentaron algún tipo de disautonomía; 8 (8,5%) pacientes debieron usar ventilación mecánica, y 2 (2,0%) pacientes fallecieron. La VPE ≤ 1 día tiene el 79% de probabilidad de desarrollar enfermedad severa, la VPE de dos y tres días tienen el 61% y el 38% de probabilidad, respectivamente, de progresar a las formas severas. Conclusión: La VPE es un predictor de mal pronóstico cuando es menor de 2 días. La VPE neurológica es un método de evaluación clínica práctica y accesible que debe evaluarse en pacientes con SGB.

ABSTRACT Objective: To identify the velocity of disease progression as a predictor of severity in patients with Guillain-Barre syndrome (GBS). Materials and methods: Prospective observational study of patients with confirmed diagnosis of GBS between May and August 2019 in four hospitals in Peru. The disease progression velocity (DPV) was defined as the time since the onset of neurological symptoms and the maximum peak of neurological severity. Results: Of 94 cases with GBS, the average age was 42 years; 73 (77.8%) patients presented severe GBS, the average hospital stay was 19 days; 45 (47.8%) patients had diarrheal symptoms previously, in 63 (67.1%) patients the onset of motor weakness was located in the upper limbs and in 31 (32.9%) it was located in the lower limbs, 9 (10.0%) patients presented some type of dysautonomy; admission to mechanical ventilation was needed in 8 (8.5%) patients, and the deceased were 2 (2.0%). The DPV≤ 1 day has a 79% probability of developing severe disease, the two and three day DPV have the probability of 61% and 38% respectively of progressing to severe forms. Conclusion: DPV is a predictor of poor prognosis when it is less than 2 days and with a possible requirement for mechanical ventilation. The speed of progression of neurological disease is a practical and accessible clinical evaluation method that should be evaluated in patients with GBS.

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One of the hypotheses that have emerged to explain the origin of dementia relates the disease with altered lipid metabolism, particularly cholesterol. To maintain cholesterol homeostasis, the ACAT1 enzyme has an important function to regulate the production of Aß. Moreover, APOE is the main cholesterol carrier in the brain, and it has been reported as a risk factor for this disease. This study evaluates the relationship between ACAT1 and APOE genetic variants with susceptibility for the development of Alzheimer's disease and other dementias. We examined four ACAT1 polymorphisms (rs2247071, rs2862616, rs3753526, rs1044925) and two in the APOE gene (rs7412, rs429358) in a group of 204 controls and 196 cases of dementia. Our results show one protective haplotype: CGCA (OR = 0.34, 95% CI = 0.23-0.46; p < 0.001) and one risk haplotype: CGGA (OR = 1.87, 95% CI = 1.34-2.60; p < 0.001) for the development of dementia. Subjects identified as APOE-ε4 allele carriers had a higher risk of developing dementia compared with non-carriers, OR = 13.33 (95% CI = 3.14-56.31). The results support the hypothesis that the ACAT1 gene, together with the APOE gene, plays an important role in susceptibility to the development of dementia and shows genetic characteristics of the Mexican population that can be used to identify the population at risk.

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