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Introduction: Nailfold videocapillaroscopy is a non-invasive tool for the assessment of peripheral microcirculation, the main indication is the study of Raynaud's phenomenon, poorly standardized outside of this context. There is no clear information in real-life about the rea-sons for referral, the presence of clinical findings of autoimmune diseases, the frequency of patterns of autoantibodies, and specific capillaroscopic findings. Objective: The purpose of this survey is to describe the sociodemographic, clinical, paraclinical, and angioscopy findings of a cohort of subjects referred to a capillaroscopy service in North-western Colombia. Methods: A retrospective study was conducted, from 2015 to 2018. Categorical variables were expressed in frequency and percentage and quantitative variables in mean and standard deviation or median with interquartile range, depending on the distribution of the data. Results: A total of 318 capillaroscopies were performed for the first time. The main referral reason was Raynaud's phenomenon (n = 134; 42.1%). The most frequent baseline capillaroscopic pattern found was normal (n = 123; 38.7%). Of the 12 capillaroscopies that presented a non-specific pattern at a 6-month follow-up, only one (8.3%) progressed to a scleroderma pattern. In the subjects with systemic sclerosis, the most frequent clinical finding was sclerodactyly (n = 34; 37.8%), and 42/44 individuals (95.4%) had positive antinuclear antibodies; the most frequent pattern was centromere (n = 27; 64.3%) Conclusions: In a real-world setting, the main referral reason for capillaroscopy was Raynaud's phenomenon; more than a third of the subjects had normal capillaroscopic findings. Sclerodactyly was the most frequent clinical finding in patients with scleroderma capillaroscopic pattern.

Introducción: La videocapilaroscopia del lecho ungular es una herramienta no invasiva para la evaluación de la microcirculación periférica; la indicación principal es el estudio del fenómeno de Raynaud. Luego de una revisión de la literatura, no hay información clara sobre los motivos de remisión, presencia de hallazgos clínicos de enfermedades autoinmunes, frecuencia de patrones de autoanticuerpos y hallazgos capilaroscópicos específicos. Objetivo: Describir los hallazgos sociodemográficos, clínicos, paraclínicos y capilaroscópicos de sujetos remitidos a un servicio de capilaroscopia en el noroccidente colombiano. Métodos: Estudio retrospectivo de 2015 a 2018. Las variables categóricas se expresaron en frecuencias absolutas y porcentajes, y las variables cuantitativas en media y desviación estándar o mediana con rango intercuartílico, dependiendo de la distribución de los datos. Resultados: Se realizaron 318 capilaroscopias por primera vez. El principal motivo de remisión fue el fenómeno de Raynaud (n = 134; 42,1%). El patrón capilaroscópico basal más frecuente fue el normal (n = 123; 38,7%). De las 12 capilaroscopias que presentaron un patrón no específico en un seguimiento de seis meses, solo una (8,3%) progresó a un patrón de esclerodermia. En los sujetos con esclerosis sistémica, el hallazgo clínico más frecuente fue la esclerodactilia (n = 34; 37,8%), y 42/44 individuos (95,4%) tenían anticuerpos antinucleares positivos; el patrón más frecuente fue el centromérico (n = 27; 64,3%). Conclusiones: La razón principal de remisión para realizar una capilaroscopia fue el fenómeno de Raynaud; más de un tercio de los sujetos tenían hallazgos capilaroscópicos normales. La esclerodactilia fue el hallazgo clínico más frecuente en pacientes con patrón capilaroscópico de esclerodermia.

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Introducción: la diabetes mellitus se produce por la alteración en el metabolismo de los carbohidratos, su prevalencia viene en aumento debido al incremento en la tasa de obesidad y los cambios en los hábitos nutricionales. En Colombia, alrededor de 8,36 % de la población padece diabetes tipo 2 y menos del 1 % diabetes tipo 1. Metodología: se seleccionaron 51 artículos sobre diabetes y diferentes escenarios clínicos, publicados en su mayoría entre los años 2015-2021. Resultados: en los pacientes con enfermedad hepática crónica, se aumenta la resistencia a la insulina e intolerancia a la glucosa; por esto, deben ser tratados en primera instancia con metformina o insulinas. En los diabéticos el riesgo cardiovascular se incrementa tanto para infarto como para accidente cerebrovascular. En estos, se puede realizar tratamiento con metformina, empagliflozina, entre otros. Los pacientes con falla renal tienen mayor riesgo de hipoglicemia por el metabolismo prolongado de la insulina como consecuencia de la filtración glomerular, en estos son útiles medicamentos como liraglutide y sus similares. Conclusión: existen múltiples escenarios clínicos que se presentan en conjunto con la diabetes mellitus. Se deben tener en cuenta las múltiples comorbilidades de los pacientes al momento de instaurar un tratamiento y sus diferentes determinantes, para garantizar su efectividad.

Introduction: Diabetes mellitus is caused by alterations in carbohydrate metabolism and its prevalence is increasing due to the increase in the rate of obesity and changes in nutritional habits. In Colombia, about 8.36% of the population suffers from type 2 diabetes and less than 1% from type 1 diabetes. Methods: Fifty-one articles were selected, on diabetes and different clinical scenarios, mostly published between 2015-2021. Results: In patients with chronic liver disease, insulin resistance and glucose intolerance are increased; therefore, they should be treated in the first instance with Metformin or Insulin. In diabetics, cardiovascular risk is increased for both infarction and stroke. In these patients, treatment can be performed with Metformin, Empagliflozin, among others. Patients with renal failure have a higher risk of hypoglycemia due to prolonged insulin metabolism as a consequence of glomerular filtration; medications such as Liraglutide and similar drugs are useful in these patients. Conclusion: There are multiple clinical scenarios that occur in conjunction with diabetes mellitus. The multiple comorbidities of patients should be taken into account when instituting treatment and its different determinants to ensure the effectiveness of the treatment to be appropriate for the patients.

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INTRODUCTION: Concomitant infections during the debut or relapse of systemic lupus erythematosus are a common scenario, due to multiple mechanisms including the use of immunosuppressive drugs and autoimmunity per se. Invasive fungal infections are rare in systemic lupus erythematosus and are associated with profound immunosuppressed states. Disseminated histoplasmosis in patients with lupus has rarely been reported and the concomitant presentation of both entities is exceptional. METHODS: We describe a case and performed a literature review in order to identify all case reports. A literature search was carried out using in PubMed/MEDLINE, EMBASE and Google Scholar (the first 200 relevant references) bibliographic databases. All available inclusion studies from January 1968 through July 2020. All data were tabulated, and outcomes were cumulatively analyzed. RESULTS: Thirty-one additional cases were identified. Disseminated histoplasmosis was the most common clinical presentation and most cases have been reported in patients with a prior diagnosis of lupus in the setting of moderate to high steroid dose use, usually in combination with some other immunosuppressant. Description at systemic lupus disease onset was only reported in 3 cases with a high associated mortality. In our patient, severe disease activity, significant immunosuppression, malnutrition and multi-organ compromise conditioned the patient's fatal outcome. CONCLUSION: Histoplasmosis can closely mimic activity of lupus. Thus, early clinical recognition is important since a delay in diagnosis and treatment can lead to fatal outcomes.

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Abstract Quality of life is impaired in patients with hemodialysis finding a lower quality of life in incidents patients, those who initiate or carry less than three months in renal replacement therapy, identifying common factors of elevated PTH, low rate body mass, anemia and use of catheter. Background: Chronic Kidney Disease (CKD) has increased its prevalence in recent years, from 44.7 patients per million in 1993 to 621 patients per million in 2012; patients who receive renal replacement therapy hemodialysis in Colombia have increasingly improved survival. The increase in the number of patients and the increase in the survival encourage us to improve the quality of life for dialysis years. Methodology: The quality of life was compared by SF-36 in 154 patients with end-stage CKD on hemodialysis management, 77 incidents patients and 77 prevalent patients who are part of a renal unit in Bogotá, Colombia. Results: All scales of quality of life in the entire population of hemodialysis patients have dropped. In the incident patients there is a lower quality of life compared to prevalent ones (p = 0.028) in this group the most relevant features were BMI <31, hb <11 g/dL and use of catheter, the scales of the SF-36 the most affected ones are those of physical component. Conclusions: The quality of life of dialysis patients is affected with greater impact on the group of incident patients, the nutritional aspects should be enhanced, hematological goal and early vascular access and vascular access in this group.

Resumen La calidad de vida de los pacientes en hemodiálisis se ve afectada. Entre ellos, los pacientes incidentes (aquellos que inician o llevan menos de tres meses en la terapia de reemplazo renal) poseen menor calidad de vida, en comparación con los pacientes prevalentes, y presentan factores como: PTH elevada, bajo índice de masa corporal, anemia y uso de catéter. Introducción: la enfermedad renal crónica (ERC) ha aumentado su prevalencia en los últimos años: ha pasado de ser padecida por 44,7 pacientes por millón en 1993, a ser padecida por 621 pacientes por millón en 2012. Los pacientes que reciben hemodiálisis de terapia de reemplazo renal en Colombia han aumentado sus posibilidades de supervivencia. El aumento del número de pacientes y el aumento de su pervivencia nos animan a mejorar la calidad de vida durante los años de diálisis. Metodología: la calidad de vida fue comparada por SF-36 en 154 pacientes con ERC terminal en manejo de hemodiálisis, 77 pacientes incidentes y 77 pacientes prevalentes, que forman parte de una unidad renal en Bogotá, Colombia. Resultados: se han reducido todas las escalas de calidad de vida en toda la población de pacientes en hemodiálisis. Los pacientes incidentes tienen menor calidad de vida en comparación con los prevalentes (p = 0,028). En este grupo, las características más relevantes fueron IMC < 31, hb < 11 g / dL y el uso de catéter. De las escalas del SF-36, los más afectados son los componentes físicos. Conclusiones: la calidad de vida de los pacientes en diálisis se ve afectada con mayor impacto en el grupo de pacientes incidentes. Para este grupo, los aspectos nutricionales deben ser mejorados, así como el acceso vascular tipo fístula debe ser realizado pre diálisis y las meta de hemoglobina deben ser mayor de 11 g/dL.

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BACKGROUND AND AIM: The involvement of Toll-like receptor (TLR)-mediated pathways in infectious and autoimmunity has been suggested. The MyD88 adaptor-like (Mal) protein, also known as the TIR domain-containing adaptor protein (TIRAP), is implicated in the TLR2- and TLR4-mediated MyD88-dependent signaling pathway. The aim of this study was to investigate the influence of the functional TIRAP (MAL) S180L polymorphism on tuberculosis (TB) and four autoimmune diseases namely: rheumatoid arthritis (RA), primary Sjögren's syndrome (pSS), systemic lupus erythematosus (SLE) and type 1 diabetes mellitus (T1D). METHODS: This was a case-control and family based association study in which 1325 individuals from a well-defined Colombian population were involved. TIRAP (MAL) S180L genotyping was done by using a polymerase chain reaction-restriction fragment length polymorphism technique and by direct sequencing. RESULTS: Leu180 allele was found to be a protective factor against developing TB (odd ratio (OR): 0.53, 95% confidence interval (CI): 0.29-0.97) and SLE (OR: 0.29, 95% CI: 0.14-0.61) while no significant influence on RA, pSS and T1D was observed. CONCLUSION: These results support the influence of TIRAP (MAL) S180L polymorphism on TB and indicate that TB and SLE might share a common immunogenetic pathway in the innate immune response.

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