Cardiovascular autonomic responses during head-up tilt test in newly diagnosed type 2 diabetes.

BACKGROUND: Autonomic dysfunction is commonly observed in patients with long-standing type 2 diabetes. Previous studies have confirmed the value of both subjectively assessed symptoms and objective measurements of autonomic nervous system function in diagnosing cardiovascular autonomic neuropathy. However, the head-up tilt test (HUTT) has been rarely used to investigate cardiovascular autonomic responses in subjects with high risk of newly diagnosed type 2 diabetes (nT2D). OBJECTIVE: To evaluate autonomic cardiovascular responses through passive orthostatic challenge along the diabetes continuum. METHODS: The study population was stratified as normoglycemic (n = 16), prediabetes (n = 20), and nT2D (n = 20). The prevalence of orthostatic intolerance and autonomic cardiovascular responses was evaluated with the Task Force Monitor during a 30-min passive HUTT. Spectral indices of heart rate and blood pressure variability and baroreceptor effectiveness index (BEI) were calculated through the HUTT. BEI was obtained by the sequence method. RESULTS: There were no differences in the prevalence of orthostatic intolerance or in the indices of heart rate and blood pressure variability among the three groups of study. The BEI was attenuated in the nT2D group in supine rest and throughout HUTT compared with normoglycemic and prediabetes groups. The multivariable linear regression analysis showed that BEI was associated with fasting glucose (ß = - 0.52, p < 0.001) and HbA1c (ß = - 0.57, p  < 0.001) independently of cardiovascular risk factors. CONCLUSION: Cardiovascular autonomic neuropathy, expressed as blunted BEI, is the only abnormal autonomic nervous test detected in nT2D, and it was independently associated with fasting glucose and HbA1c values.

Familial hypercholesterolemia in Mexico: Initial insights from the national registry.

BACKGROUND: Familial hypercholesterolemia (FH) remains underdiagnosed and undertreated. OBJECTIVE: Report the results of the first years (2017-2019) of the Mexican FH registry. METHODS: There are 60 investigators, representing 28 federal states, participating in the registry. The variables included are in accordance with the European Atherosclerosis Society (EAS) FH recommendations. RESULTS: To date, 709 patients have been registered, only 336 patients with complete data fields are presented. The mean age is 50 (36-62) years and the average time since diagnosis is 4 (IQR: 2-16) years. Genetic testing is recorded in 26.9%. Tendon xanthomas are present in 43.2%. The prevalence of type 2 diabetes is 11.3% and that of premature CAD is 9.8%. Index cases, male gender, hypertension and smoking were associated with premature CAD. The median lipoprotein (a) level is 30.5 (IQR 10.8-80.7) mg/dl. Statins and co-administration with ezetimibe were recorded in 88.1% and 35.7% respectively. A combined treatment target (50% reduction in LDL-C and an LDL-C <100 mg/dl) was achieved by 13.7%. Associated factors were index case (OR 3.6, 95%CI 1.69-8.73, P = .002), combination therapy (OR 2.4, 95%CI 1.23-4.90, P = .011), type 2 diabetes (OR 2.8, 95%CI 1.03-7.59, P = .036) and age (OR 1.023, 95%CI 1.01-1.05, P = .033). CONCLUSION: The results confirm late diagnosis, a lower than expected prevalence and risk of ASCVD, a higher than expected prevalence of type 2 diabetes and undertreatment, with relatively few patients reaching goals. Recommendations include, the use of combination lipid lowering therapy, control of comorbid conditions and more frequent genetic testing in the future.

Coronavirus infection in patients with diabetes.

Diabetes mellitus is a complex, multifactorial, chronic disease characterized by impaired metabolism of glucose, fats and proteins. Patients who suffer from it frequently have hyperglycemia and coronary artery disease is the leading cause of death. The comorbidities associated with diabetes are overweight and obesity, systemic arterial hypertension, atherogenic dyslipidemia and in some patients peripheral vascular disease, kidney damage, neuropathy and retinopathy. Chronic lack of control of the disease is associated with increased susceptibility to infections, which generally have few symptoms, but hyperglycemia is generally magnified, which worsens the course of infections. Since December 2019, when the disease caused by one of the coronaviruses (coronavirus 2 of severe acute respiratory syndrome, SARS-CoV-2) was identified and has been called coronavirus disease 2019 (COVID-19), there have been some reports that associate the presence of diabetes with an increased risk of mortality. In this review article we have focused on four specific points: 1) epidemiology of the prevalence and mortality of COVID 19 in the general population and in the population with type 2 diabetes mellitus; 2) pathophysiology related to the binding of SARS-CoV-2 to receptors in subjects with diabetes; 3) the immune response induced by SARS-CoV-2, and 4) the outpatient and hospital treatment recommended in patients with diabetes who become infected with SARS-CoV-2.

La diabetes mellitus es una enfermedad crónica, compleja, multifactorial, que se caracteriza por alteración en el metabolismo de la glucosa, las grasas y las proteínas. Los pacientes que la padecen con frecuencia cursan con hiperglucemia y la enfermedad arterial coronaria es la principal causa de muerte. Las comorbilidades que se asocian a la diabetes son: sobrepeso y obesidad, hipertensión arterial sistémica, dislipidemia aterogénica y en algunos pacientes enfermedad vascular periférica, daño renal, neuropatía y retinopatía. El descontrol crónico de la enfermedad se asocia a mayor susceptibilidad a infecciones, las cuales generalmente cursan con pocos síntomas, pero generalmente se magnifica la hiperglucemia, lo cual empeora el curso de las infecciones. Desde diciembre de 2019, cuando se identificó la enfermedad producida por uno de los coronavirus (coronavirus 2 del síndrome respiratorio agudo grave, SARS-CoV-2) y que ha sido llamada enfermedad por coronavirus 2019 (COVID-19), ha habido algunos reportes que asocian la presencia de diabetes con un mayor riesgo de mortalidad. En este artículo de revisión nos hemos enfocado en cuatro puntos específicos: 1) epidemiología de la prevalencia y de la mortalidad de COVID 19 en la población general y en la población con diabetes mellitus tipo 2; 2) fisiopatología relacionada con la unión del SARS-CoV-2 a los receptores en sujetos con diabetes; 3) la respuesta inmunológica inducida por el SARS-CoV-2, y 4) el tratamiento ambulatorio y hospitalario que se recomienda en los pacientes con diabetes que se infectan con SARS-CoV-2.

Infección por coronavirus en pacientes con diabetes / Coronavirus infection in patients with diabetes

Resumen La diabetes mellitus es una enfermedad crónica, compleja, multifactorial, que se caracteriza por alteración en el metabolismo de la glucosa, las grasas y las proteínas. Los pacientes que la padecen con frecuencia cursan con hiperglucemia y la enfermedad arterial coronaria es la principal causa de muerte. Las comorbilidades que se asocian a la diabetes son: sobrepeso y obesidad, hipertensión arterial sistémica, dislipidemia aterogénica y en algunos pacientes enfermedad vascular periférica, daño renal, neuropatía y retinopatía. El descontrol crónico de la enfermedad se asocia a mayor susceptibilidad a infecciones, las cuales generalmente cursan con pocos síntomas, pero generalmente se magnifica la hiperglucemia, lo cual empeora el curso de las infecciones. Desde diciembre de 2019, cuando se identificó la enfermedad producida por uno de los coronavirus (coronavirus 2 del síndrome respiratorio agudo grave, SARS-CoV-2) y que ha sido llamada enfermedad por coronavirus 2019 (COVID-19), ha habido algunos reportes que asocian la presencia de diabetes con un mayor riesgo de mortalidad. En este artículo de revisión nos hemos enfocado en cuatro puntos específicos: 1) epidemiología de la prevalencia y de la mortalidad de COVID 19 en la población general y en la población con diabetes mellitus tipo 2; 2) fisiopatología relacionada con la unión del SARS-CoV-2 a los receptores en sujetos con diabetes; 3) la respuesta inmunológica inducida por el SARS-CoV-2, y 4) el tratamiento ambulatorio y hospitalario que se recomienda en los pacientes con diabetes que se infectan con SARS-CoV-2.

Abstract Diabetes mellitus is a complex, multifactorial, chronic disease characterized by impaired metabolism of glucose, fats and proteins. Patients who suffer from it frequently have hyperglycemia and coronary artery disease is the leading cause of death. The comorbidities associated with diabetes are overweight and obesity, systemic arterial hypertension, atherogenic dyslipidemia and in some patients peripheral vascular disease, kidney damage, neuropathy and retinopathy. Chronic lack of control of the disease is associated with increased susceptibility to infections, which generally have few symptoms, but hyperglycemia is generally magnified, which worsens the course of infections. Since December 2019, when the disease caused by one of the coronaviruses (coronavirus 2 of severe acute respiratory syndrome, SARS-CoV-2) was identified and has been called coronavirus disease 2019 (COVID-19), there have been some reports that associate the presence of diabetes with an increased risk of mortality. In this review article we have focused on four specific points: 1) epidemiology of the prevalence and mortality of COVID 19 in the general population and in the population with type 2 diabetes mellitus; 2) pathophysiology related to the binding of SARS-CoV-2 to receptors in subjects with diabetes; 3) the immune response induced by SARS-CoV-2, and 4) the outpatient and hospital treatment recommended in patients with diabetes who become infected with SARS-CoV-2.