Serum cholesterol levels are inversely associated with the risk of malignancy in subjects with Bethesda category IV thyroid nodules.

INTRODUCTION: Some epidemiological data suggest that there may be an inverse relationship between cholesterol levels and the risk of thyroid cancer in the overall population. The present study was aimed to evaluate the lipid profile specifically in subjects with Bethesda category IV thyroid nodules, and compare whether there were any differences between those with benign and malignant nodules. METHODS: Single-centre, retrospective study on 204 subjects treated by partial or total thyroidectomy for excision of a Bethesda category IV thyroid nodule, who had undergone a blood lipid profile test in the 12 months prior to surgery. In addition to lipid measures, other demographic, clinical, biochemical and ultrasound data were collected. RESULTS: Seventy-five subjects (36.8%) were diagnosed with thyroid carcinoma in the definitive histopathological examination. Patients with thyroid cancer had lower levels of total cholesterol, LDL-cholesterol and non-HDL-cholesterol than subjects with benign thyroid diseases. There were no differences in HDL-cholesterol, triglycerides or total cholesterol/HDL-cholesterol ratio. There were no differences either between groups in other clinical, biochemical and ultrasound variables, including the use of lipid-lowering drugs. In multivariate analysis, only LDL-cholesterol was independently associated with malignancy. Subjects with follicular carcinoma showed the lowest cholesterol levels, while those with papillary carcinoma had intermediate values between the group with follicular carcinoma and the group with benign thyroid diseases. CONCLUSIONS: In subjects with cytologically indeterminate Bethesda category IV thyroid nodules, levels of total cholesterol, non-HDL-cholesterol and, particularly, LDL-cholesterol are lower among those with malignant nodules.

LDL cholesterol as a causal agent of atherosclerosis. / El colesterol LDL como agente causal de la aterosclerosis.

Atherosclerosis is a chronic disease that begins in early childhood, and without intervention, progresses throughout life, and inevitably worsens over time, sometimes rapidly. LDL cholesterol, beyond being a cardiovascular risk factor, is a causal agent of atherosclerosis. Without LDL cholesterol there is no atherosclerosis, so the evolution of the disease is modifiable, and even reversible.

World Heart Federation Cholesterol Roadmap: The Portuguese case.

Atherosclerotic cardiovascular disease (ASCVD) remains the major cause of premature death and disability; effective cardiovascular (CV) risk prevention is fundamental. The World Heart Federation (WHF) Cholesterol Roadmap provides a framework for national policy development and aims to achieve ASCVD prevention. At the invitation of the WHF, a group of experts from the Portuguese Society of Cardiology (SPC), addressed the cholesterol burden at nationally and discussed possible strategies to include in a Portuguese cholesterol roadmap. The literature review showed that the cholesterol burden in Portugal is high and especially uncontrolled in those with the highest CV risk. An infographic scorecard was built to include in the WHF collection, for a clear idea about CV risk and cholesterol burden in Portugal, which would also be useful for health policy advocacy. The expert discussion and preventive strategies proposal followed the five pillars of the WHF document: awareness improvement; population-based approaches for CV risk and cholesterol; risk assessment/population screening; system-level approaches; surveillance of cholesterol and ASCVD outcomes. These strategies were debated by all the expert participants, with the goal of creating a national cholesterol roadmap to be used for advocacy and as a guide for CV prevention. Several key recommendations were outlined: include all stakeholders in a multidisciplinary national program; create a structured activities plan to increase awareness in the population; improve the quality of continuous CV health education; increase the interaction between different health professionals and non-health professionals; increment the referral of patients to cardiac rehabilitation; screen cholesterol levels in the general population, especially high-risk groups; promote patient self-care, engage with patients' associations; use specific social networks to spread information widely; create a national database of cholesterol levels with systematic registry of CV events; redefine strategies based on the evaluation of results; create and involve more patients' associations - invert the pyramid order. In conclusion, ASCVD and the cholesterol burden remain a strong global issue in Portugal, requiring the involvement of multiple stakeholders in prevention. The Portuguese cholesterol roadmap can provide some solutions to help urgently mitigate the problem. Population-based approaches to improve awareness and CV risk assessment and surveillance of cholesterol and ASCVD outcomes are key factors in this change. A call to action is clearly needed to fight hypercholesterolemia and ASCVD burden.

A randomized double-blind controlled clinical trial demonstrating efficacy of different probiotic strains on serum lipids and glycemic biomarker.

Introduction: Background: the aim of this randomized placebo-controlled study was to investigate the effect of probiotics mainly on plasma lipids, homocysteine levels, glycemic biomarkers and inflammatory marker in people with hyperlipidemia, compared to a placebo. Methods: a randomized, double-blind placebo-controlled study was completed with a total of 51 men and women who have diagnosed with hyperlipidemia. The three study interventions were: 1) probiotic group I asked to take once a day 1 x 106 colony forming unit (CFU) Lactobacillus rhamnosus GG microorganism (n = 18) capsule; 2) probiotic group II asked to take once a day of a combined Lactobacillus acidophilus 1 x 109 CFU and Bifidobacterium animalis subsp.lactis 1 x 109 CFU probiotic capsule (n = 17); and 3) placebo group: emptied capsule (n = 16), plasma lipids, homocysteine, and glycemic biomarkers were were performed at baseline and week 8. Also, hs-CRP levels was assessed as inflammatory parameter. Results: compared to baseline there was a significant decrease in triglyceride and total cholesterol levels of the both intervention groups compared to the placebo group. Regarding the glycemic biomarkers. both intervention groups significantly alter the HOMA-IR values compared to the placebo group (p < 0.05). When homocysteine values were evaluated. a statistically significant decrease was observed only in the group using the combined strain (p < 0.05). Results demonstrated that regular and strain-specific use of probiotics have effective and favorable consequences on plasma lipids and glycemic biomarkers. Conclusion: probiotics containing Lactobacillus or Bifidobacterium could be effective in hypercholesterolemic patients, reducing serum lipids as well as homocysteine and glycaemia.

Introducción: Objetivo: el objetivo de este estudio aleatorizado controlado con placebo fue investigar el efecto de los probióticos principalmente en los lípidos plasmáticos, los niveles de homocisteína, los biomarcadores glucémicos y el marcador inflamatorio en personas con hiperlipidemia, en comparación con un placebo. Métodos: se realizó un estudio doble ciego aleatoria controlado con placebo con un total de 51 hombres y mujeres a quienes se les había diagnosticado hiperlipidemia. Las tres intervenciones del estudio fueron: 1) un grupo probiótico que tomaban una vez al día 1 x 106 cápsulas de unidades formadoras de colonias (UFC) del microorganismo Lactobacillus rhamnosus GG (n = 18); 2) un grupo probiótico II que tomaba una vez al día una cápsula probiótica combinada de Lactobacillus acidophilus 1 x 109 CFU y Bifidobacterium animalis subsp.lactis 1 x 109 CFU (n = 17); y 3) un grupo placebo: cápsula vacía (n = 16), lípidos plasmáticos. Se realizaron biomarcadores de homocisteína y glucémico al inicio y también en la semana 8. Los niveles de hs-CRP se evaluaron como parámetro inflamatorio. Resultados: en comparación con el valor inicial, hubo una disminución significativa en los niveles de triglicéridos y colesterol total de ambos grupos de intervención en comparación con los del grupo de placebo. En cuanto a los biomarcadores glucémicos, ambos grupos de intervención alteran significativamente los valores de HOMA-IR en comparación con el grupo placebo (p < 0,05). Cuando se evaluaron los valores de homocisteína, se observó una disminución estadísticamente significativa solo en el grupo que utilizó la cepa combinada (p < 0,05). Los resultados demostraron que el uso regular y específico de cepas de probióticos tiene consecuencias favorables sobre los lípidos plasmáticos y los biomarcadores glucémicos. Conclusión: los probióticos que contienen Lactobacillus o Bifidobacterium podrían ser eficaces en pacientes hipercolesterolémicos, reduciendo los lípidos séricos, así como la homocisteína y la glucemia.

Clinical characterization and detection of subclinical atherosclerosis in subjects with extreme hyperalphalipoproteinemia. / Caracterización clínica y detección de arteriosclerosis subclínica en sujetos con hiperalfalipoproteinemia extrema.

INTRODUCTION AND OBJECTIVES: The association between HDL cholesterol (HDL-C) levels and death from cardiovascular disease follows a U-shaped pattern, increasing at the extremes. The objective of the study was to characterize a sample of subjects with extreme hyperalphalipoproteinemia (HAE). MATERIAL AND METHODS: 53 cases with HAE were recruited, 24 women (HDL-C>135mg/ dL) and 29 men (HDL-C>116mg/ dL). A detailed medical history was taken and questionnaires on adherence to the Mediterranean diet and physical activity were collected. Carotid ultrasounds were performed to detect the presence of suclinical atherosclerosis. RESULTS: The most prevalent cardiovascular risk factor (CVRF) was dyslipidemia (64%) with no significant differences between men and women, unlike hypertension (21% in women, versus 55% in men, p=0.01) and others CVRF, for example, diabetes. 7% of the series had previous cardiovascular disease, women had higher LDL cholesterol (p=0.002) and HDL-C than men (without significant differences). Plaque was detected in 53% of cases, being more prevalent in men. Patients with plaque were older, drank more alcohol and smoked more (p<0.05). CONCLUSIONS: Men had a higher prevalence of CVRF than women, except for dyslipidemia. Subclinical atherosclerosis occurred in more than half of the series. Age, alcohol consumption and smoking were independently associated with the presence of plaque, however, our data do not show a significant influence of HDL-C levels.

Dietary plant microRNAs as potential regulators of cellular cholesterol efflux.

AIM: Epidemiological evidence suggests adherence to vegetable-rich diets is associated to atheroprotective effects and bioactive components are most likely to play a relevant role. The notion of inter-kingdom regulation has opened a new research paradigm and perhaps microRNAs (miRNAs) from edible vegetables could influence consumer gene expression and lead to biological effects. We aimed to investigate the potential impact of broccoli-derived miRNAs on cellular cholesterol efflux in vitro. METHODS: Four miRNAs (miR159a, miR159b, miR166a and miR403) from Brassica oleracea var. italica (broccoli), a widely consumed cruciferous vegetable, were selected for further investigation, based on their high abundancy in this vegetable and their presence in other plants. Selected miRNAs were synthesized with a 3'-terminal 2'-O-methylation and their cellular toxicity, in vitro gastrointestinal resistance and cellular uptake were evaluated. Potential target genes within the mammalian transcriptome were assessed in silico following pathway analysis. In vitro cholesterol efflux was assessed in human THP-1-derived macrophages. RESULTS: miRNAs survival to in vitro GI digestion was around 1%, although some variation was seen between the four candidates. Cellular uptake by mammalian cells was confirmed, and an increase in cholesterol efflux was observed. Pathway analysis suggested these miRNAs are involved in biological processes related to phosphorylation, phosphatidylinositol and Wnt signaling, and to the insulin/IGF pathway. CONCLUSIONS: Health-promoting properties attributed to cruciferous vegetables, might be mediated (at least in part) through miRNA-related mechanisms.

Gasto energético en reposo y concentración sérica de lipoproteínas de baja densidad en adultos con hipotiroidismo subclínico leve

La alta prevalencia de hipotiroidismo subclínico en Chile puede deberse a que el límite superior normal de la hormona estimulante del tiroides (TSH) sérica es bajo. Personas con TSH levemente mayor al límite superior pueden ser metabólicamente similares a personas sanas. Se compararon marcadores de acción tiroidea (gasto energético en reposo [GER] y lipoproteína de baja densidad [LDL]) en adultos con hipotiroidismo subclínico leve y con función tiroidea normal con o sin tratamiento con levotiroxina. Se midió GER, perfil lipídico y tiroideo en personas sanas con función tiroidea normal (TSH ≥0,4-<4,5 µUI/ml; n=91); con hipotiroidismo subclínico leve (TSH ≥4,5-≤6,5 µUI/ml; n=5); y con hipotiroidismo clínico tratado con levotiroxina y TSH normal (n=13). Se analizó la LDL en 838 personas sanas con función tiroidea normal y 89 con hipotiroidismo subclínico leve de la Encuesta Nacional de Salud 2016/17 (ENS). El GER, ajustado por peso, sexo y edad, fue similar entre grupos (p=0,71). La LDL fue similar entre personas con función tiroidea normal e hipotiroidismo subclínico leve (91±24 vs. 101±17 mg/dl; p=0,67), y menor en hipotiroidismo tratado (64±22 mg/dl; p<0,01). La LDL no se asoció con TSH pero si inversamente con T4L en mujeres (r=-0,33; p=0,02; n=53). En la ENS, ambos grupos tuvieron similar LDL (p=0,34), la que se asoció inversamente con T4L en mujeres (r=-0,12; p=0,01; n=569) pero no con TSH. Personas sanas con función tiroidea normal y con hipotiroidismo subclínico leve tienen similar GER y LDL. Esto apoya la idea de redefinir el límite superior normal de TSH.

The high prevalence of subclinical hypothyroidism in Chile may be due to the low normal upper limit of serum thyroid-stimulating hormone (TSH). People with TSH slightly higher than the upper limit may be metabolically similar to healthy people. Thyroid action markers (resting energy expenditure [REE] and low-density lipoprotein [LDL]) were compared in adults with mild subclinical hypothyroidism and with normal thyroid function with or without levothyroxine treatment. REE, lipid and thyroid profile were measured in healthy people with normal thyroid function (TSH ≥0,4-<4,5 µUI/ml (n=91); with mild subclinical hypothyroidism (TSH ≥4,5-≤6 µUI/ml; n=5); and with clinical hypothyroidism treated with levothyroxine and normal TSH (n=13). LDL was analyzed in 838 healthy people with normal thyroid function and 89 with mild subclinical hypothyroidism from the 2016/17 National Health Survey (NHS). REE, adjusted for weight, sex and age, was similar between the groups (p=0,71). LDL was similar between people with normal thyroid function and mild subclinical hypothyroidism (91±24 vs. 101±17 mg/dl; p=0,67), and lower in treated hypothyroidism (64±22 mg/dl; p<0,01). LDL was not associated with TSH but was inversely with FT4 in women (r=-0,33; p=0,02; n=53). In the NHS, both groups had similar serum LDL (p=0,34), which was inversely associated with FT4 in women (r=-0,12; p=0,01; n=569), but not with TSH. Healthy people with normal thyroid function and mild subclinical hypothyroidism have similar REE and LDL. These results support the idea of redefining the normal upper limit of TSH.

Monocyte-to-High-Density Lipoprotein Ratio Is Associated with Systemic Inflammation, Insulin Resistance, and Coronary Subclinical Atherosclerosis in Psoriasis: Results from 2 Observational Cohorts.

Systemic inflammation or insulin resistance drive atherosclerosis. However, they are difficult to capture for assessing cardiovascular risk in clinical settings. The monocyte-to-high-density lipoprotein ratio (MHR) is an accessible biomarker that integrates inflammatory and metabolic information and has been associated with poorer cardiovascular outcomes. Our aim was to evaluate the association of MHR with the presence of subclinical atherosclerosis in patients with psoriasis. The study involved a European and an American cohort including 405 patients with the disease. Subclinical atherosclerosis was assessed by coronary computed tomography angiography. First, MHR correlated with insulin resistance through homeostatic model assessment for insulin resistance, with high-sensitivity CRP and with 18F-fluorodeoxyglucose uptake in spleen, liver, and bone marrow by positron emission tomography/computed tomography. MHR was associated with both the presence of coronary plaques >50% of the artery lumen and noncalcified coronary burden, beyond traditional cardiovascular risk factors (P < .05). In a noncalcified coronary burden prediction model accounting for cardiovascular risk factors, statins, and biologic treatment, MHR added value (area under the curve base model = 0.72 vs area under the curve base model plus MHR = 0.76, P = .04) within the American cohort. These results suggests that MHR may detect patients with psoriasis who have subclinical burden of cardiovascular disease and warrant more aggressive measures to reduce lifetime adverse cardiovascular outcomes.

HOURS OF WORKING DAY AND CHOLESTEROL LEVEL IN LAND TRANSPORTATION DRIVERS IN A COMPANY IN LIMA / HORAS DE JORNADA LABORAL Y NIVEL DE COLESTEROL EN CONDUCTORES DE TRANSPORTE TERRESTRE EN UNA EMPRESA DE LIMA / HORAS DE JORNADA DE TRABALHO E NÍVEL DE COLESTEROL EM MOTORISTAS DE TRANSPORTE TERRESTRE DE UMA EMPRESA DE LIMA

Introduction: Ground transportation drivers face substantial risks to cardiovascular health, mainly hypercholesterolemia, possibly related to the hours of the workday.Objective. Determine the relationship between working hours and cholesterol level in land transport drivers in a company in Lima between the period from January 2022 to August 2023.Materials and methods. Correlational, cross-sectional research, which included 107 transport drivers. The main variables were: Hours of daily and weekly workday, total cholesterol and high-density lipoproteins (HDL), the instrument used was a data collection form. Spearman's Rho correlation test was used in the statistical analysis. The study was approved by the Ethics Committee of the Universidad Nacional Mayor de San Marcos.Results. It was observed that 47.02% of the workers worked between 9 and 10 hours a day, while 57.9% worked 61 to 72 hours a day. Furthermore, the majority of drivers had total cholesterol levels between 160 and 199 mg/dl (38.3%), and HDL cholesterol between 35 and 59 mg/dl (93.5%). A significant and direct correlation was determined between daily (p=0.026, Rho=0.216) and weekly (p=0.038, Rho=0.201) working hours with total cholesterol. No significant relationship was found with HDL cholesterol.Conclusions. It was identified that the hours of daily and weekly work hours were significantly related to the level of total cholesterol.

Introducción: Los conductores de transporte terrestre enfrentan riesgos sustanciales para la salud cardiovascular, principalmente hipercolesterolemia, posiblemente relacionadas a las largas horas de jornada laboral.Objetivo. Determinar la relación entre las horas de jornada laboral y nivel de colesterol en conductores de transporte terrestre en una empresa de Lima entre el periodo de enero 2022 hasta agosto de 2023.Materiales y métodos. Investigación correlacional, de corte transversal, que incluyó a 107 conductores de transporte. Las variables principales fueron: Horas de jornada laboral diaria y semanal, colesterol total y lipoproteínas de alta densidad (HDL), el instrumento empleado fue una ficha de recolección de datos. En el análisis estadístico se empleó la prueba de correlación Rho de Spearman. El estudio fue aprobado por el Comité de Ética de la Universidad Nacional Mayor de San Marcos.Resultados. Se observó que el 47,02% de los trabajadores laboraba entre 9 y 10 horas diarias, mientras que el 57,9% lo hacía de 61 a 72 horas. Además, la mayoría de los conductores presentaba niveles de colesterol total entre 160 y 199 mg/dl (38,3%), y colesterol HDL entre 35 a 59 mg/dl (93,5%). Se determinó correlación significativa y directa entre las horas de jornada laboral diaria (p=0,026, Rho=0,216) y semanal (p=0,038, Rho=0,201) con el colesterol total. No se encontró relación significativa con el colesterol HDL.Conclusiones. Se identificó que las horas de jornada laboral diaria y semanal se relacionaron significativamente con el nivel de colesterol total.

Modulación por Passiflora edulis de triglicéridos y colesterol intracelulares en líneas celulares de cáncer colorrectal SW480 y sus derivadas metastásicas (SW620) / Modulation by Passiflora edulis of intracellular triglycerides and cholesterol in SW480 col orectal cancer cell lines and their metastatic derivatives (SW620)

Cancer cells modify lipid metabolism to proliferate, Passiflora edulis ( P. edulis ) fruit juice (ZuFru) has antitumor activity, but whether a mechanism is through modulation of cell lipids is unknown. T o establish if ZuFru modifies cholesterol and triglycerides in SW480 and SW620. ZuFru composition was studied by phytochemical march; antiproliferative activity by sulforhodamine B, cholesterol , and triglycerides by Folch method. Z ufru contains anthocyanins, flavonoids, alkaloids , and tannins. Cell lines showed differences in their growth rate ( p =0.049). At 39.6 µg/m L of ZuFru, cell viability was decreased: SW480 (45.6%) and SW620 (45.1%). In SW480, cholesterol (44.6%) and triglycerides (46.5%) decreased; In SW620, cholesterol decreased 14.8% and triglycerides increased 7%, with significant differences for both lines. A ntiproliferative activity of ZuFru could be associated with the inhibition of intracellular biosynthesis of cholesterol and triglycerides in SW480. Action mechanisms need to be further investigated.

Las células cancerosas modifican el metabolismo lipídico para proliferar; el zumo de fruta (ZuFru) de Passiflora edulis ( P. edulis ) tiene activida d antitumoral, sin embargo, se desconoce si se involucran los lípidos celulares. E stablecer si ZuFru modifica colesterol y triglicéridos en células SW480 y SW620. C omposición del ZuFru, actividad antiproliferativa, colesterol y triglicéridos. Se encontraro n antocianinas, flavonoides, alcaloides y taninos. Las líneas celulares mostraron diferencias en su tasa de crecimiento ( p =0 . 049); ZuFru 39,6 µg/ml se disminuyó la viabilidad celular; SW480 (45,6%) y SW620 (45,1%); en SW480 colesterol (44,6%) y triglicérid os (46,5%) en SW620, colesterol (14,8%) y los triglicéridos aumentaron 7%, con diferencias significativas para ambas líneas. La actividad antiproliferativa del ZuFru podría estar asociada a la inhibición de la biosíntesis intracelular de colesterol y de tr iglicéridos en SW480, pero no en SW620. Estos mecanismos de acción deben ser fuertemente investigados.

Lipoprotein (a) is a predictor of non-achievement of LDL-C goals in patients with chronic heart disease. / Lipoproteína (a) es un factor predictor de no consecución de objetivos de C-LDL en pacientes con cardiopatía isquémica crónica.

INTRODUCTION AND OBJECTIVES: Lipoprotein (a) [Lp(a)] concentration influences serum low-density lipoprotein cholesterol (LDL-C) levels. How it influences the achievement of LDL-C targets established in the guidelines is not well studied. Our aim was to know the prevalence of elevated Lp(a) levels in patients with coronary artery disease, and to assess its influence on the achievement of LDL-C targets. METHOD: We conducted a cross-sectional study in a cardiology department in Spain. A total of 870 patients with stable coronary artery disease had their lipid profile determined, including Lp(a). Patients were stratified into 2 groups according to Lp(a)>50mg/dL and Lp(a)≤50mg/dL. The association of Lp(a)>50mg/dL with achievement of LDL-C targets was assessed by logistic regression analysis. RESULTS: The prevalence of Lp(a)>50mg/dL was 30.8%. Patients with Lp(a)>50mg/dL had higher baseline (142.30±47.54 vs. 130.47±40.75mg/dL; p=0.0001) and current (72.91±26.44 vs. 64.72±25.30mg/dL; p=0.0001), despite the fact that they were treated with more high-potency statins (77.2 vs. 70.9%; p=0.058) and more combination lipid-lowering therapy (37.7 vs. 25.7%; p=0.001). The proportion of patients achieving target LDL-C was lower in those with Lp(a)>50mg/dL. Independent predictors of having elevated Lp(a) levels>50mg/dL were the use of high-potency statins (OR 1.5; 95% CI 1.08-2.14), combination lipid-lowering therapy with ezetimibe (OR 2.0; 95% CI 1.45-2.73) and failure to achieve a LDL-C ≤55mg/dL (OR 2.3; 95% CI 1.63-3.23). CONCLUSIONS: Elevated Lp(a) levels influence LDL-C levels and hinder the achievement of targets in patients at very high cardiovascular risk. New drugs that act directly on Lp(a) are needed in these patients.

Asociación del colesterol remanente con el grado de control glucémico y la presencia de complicaciones microvasculares en personas con diabetes mellitus tipo 1 / Association of remnant cholesterol with glycemic control and presence of microvascular complications in individuals with type 1 diabetes mellitus

Introducción Este trabajo investiga la relación entre el colesterol remanente, las métricas de glucosa y las complicaciones crónicas de la diabetes tipo 1 en individuos con sistemas flash de glucosa. Material y métodos Se recopilaron variables clínicas y métricas de glucosa de personas usuarias de sensores de glucosa. Se llevaron a cabo modelos estadísticos para estudiar la asociación del colesterol remanente con las métricas de glucosa, así como con la retinopatía y la nefropatía diabética. Resultados Se incluyeron 383 personas con una edad de 48,3±16,2 años, siendo un 54,1% mujeres, con un colesterol remanente de 16±10mg/dl. Los resultados mostraron que el colesterol remanente se asocia a un menor tiempo en rango (p=0,015) y a un mayor tiempo por encima del rango (p=0,003). La nefropatía diabética fue la única complicación que se asoció con un colesterol remanente mayor a 30mg/dl, OR: 8,93: IC 95%: 2,99-26,62; p<0,001. Conclusión El colesterol remanente se asocia de forma independiente con la hiperglucemia y la nefropatía diabética en personas con diabetes tipo 1. (AU)

Introduction This study examines the relationship between remnant cholesterol, glucose metrics, and chronic complications of type 1 diabetes in users of glucose monitoring systems. Material and methods Clinical variables and glucose metrics were collected from individuals using glucose sensors. Statistical models were employed to investigate the association of remnant cholesterol with glucose metrics, diabetic retinopathy, and diabetic nephropathy. Results A total of 383 individuals, aged 48.3±16.2 years, with 54.1% women, and a remnant cholesterol level of 16±10mg/dL, were included. The results demonstrated that remnant cholesterol was associated with less time within the target range (P=.015) and more time above the target range (P=.003). Diabetic nephropathy was the only complication associated with remnant cholesterol levels exceeding 30mg/dL; OR: 8.93; 95% CI: 2.99-26.62, P<.001. Conclusion Remnant cholesterol is independently associated with hyperglycemia and diabetic nephropathy in individuals with type 1 diabetes. (AU)

Asociación del colesterol remanente con el grado de control glucémico y la presencia de complicaciones microvasculares en personas con diabetes mellitus tipo 1 / Association of remnant cholesterol with glycemic control and presence of microvascular complications in individuals with type 1 diabetes mellitus

Introducción Este trabajo investiga la relación entre el colesterol remanente, las métricas de glucosa y las complicaciones crónicas de la diabetes tipo 1 en individuos con sistemas flash de glucosa. Material y métodos Se recopilaron variables clínicas y métricas de glucosa de personas usuarias de sensores de glucosa. Se llevaron a cabo modelos estadísticos para estudiar la asociación del colesterol remanente con las métricas de glucosa, así como con la retinopatía y la nefropatía diabética. Resultados Se incluyeron 383 personas con una edad de 48,3±16,2 años, siendo un 54,1% mujeres, con un colesterol remanente de 16±10mg/dl. Los resultados mostraron que el colesterol remanente se asocia a un menor tiempo en rango (p=0,015) y a un mayor tiempo por encima del rango (p=0,003). La nefropatía diabética fue la única complicación que se asoció con un colesterol remanente mayor a 30mg/dl, OR: 8,93: IC 95%: 2,99-26,62; p<0,001. Conclusión El colesterol remanente se asocia de forma independiente con la hiperglucemia y la nefropatía diabética en personas con diabetes tipo 1. (AU)

Introduction This study examines the relationship between remnant cholesterol, glucose metrics, and chronic complications of type 1 diabetes in users of glucose monitoring systems. Material and methods Clinical variables and glucose metrics were collected from individuals using glucose sensors. Statistical models were employed to investigate the association of remnant cholesterol with glucose metrics, diabetic retinopathy, and diabetic nephropathy. Results A total of 383 individuals, aged 48.3±16.2 years, with 54.1% women, and a remnant cholesterol level of 16±10mg/dL, were included. The results demonstrated that remnant cholesterol was associated with less time within the target range (P=.015) and more time above the target range (P=.003). Diabetic nephropathy was the only complication associated with remnant cholesterol levels exceeding 30mg/dL; OR: 8.93; 95% CI: 2.99-26.62, P<.001. Conclusion Remnant cholesterol is independently associated with hyperglycemia and diabetic nephropathy in individuals with type 1 diabetes. (AU)

Factors associated with the presence of tendon xanthomas in familial hypercholesterolemia.

INTRODUCTION AND OBJECTIVES: Tendon xanthomas (TX) are lipid deposits highly specific to familial hypercholesterolemia (FH). However, there is significant variability in their presentation among FH patients, primarily due to largely unknown causes. Lipoprotein(a) is a well-established independent risk factor for atherosclerotic cardiovascular disease in the general population as well as in FH. Given the wide variability of lipoprotein(a) among FH individuals and the likelihood that TX may result from a proatherogenic and proinflammatory condition, the objective of this study was to analyze the size of TX in the Achilles tendons of FH participants and the variables associated with their presence, including lipoprotein(a) concentration. METHODS: A cross-sectional study was conducted on 377 participants with a molecular diagnosis of heterozygous FH. Achilles tendon maximum thickness (ATMT) was measured using ultrasonography with standardized equipment and procedures. Demographic variables and lipid profiles were collected. A multivariate linear regression model using a log-Gaussian approach was used to predict TX size. Classical cardiovascular risk factors and lipoprotein(a) were included as explanatory variables. RESULTS: The mean low-density lipoprotein cholesterol level was 277mg/dL without lipid-lowering treatment, and the median ATMT was 5.50mm. We demonstrated that age, sex, low-density lipoprotein cholesterol, and lipoprotein(a) were independently associated with ATMT. However, these 4 variables did not account for most the interindividual variability observed (R2=0.205). CONCLUSIONS: TX, a characteristic hallmark of FH, exhibit heterogeneity in their presentation. Interindividual variability can partially be explained by age, male sex, low-density lipoprotein cholesterol, and lipoprotein(a) but these factors account for only 20% of this heterogeneity.

Atingimento das Metas de Colesterol LDL em Pacientes com Histórico de Infarto Agudo do Miocárdio: Estudo Transversal do Mundo Real / Attainment of LDL-Cholesterol Goals in Patients with Previous Myocardial Infarction: A Real-World Cross-Sectional Analysis

Resumo Fundamento: As diretrizes da Sociedade Europeia de Cardiologia recomendam um nível de colesterol LDL (LDL-C) < 55 mg/dL para pacientes com doença cardiovascular estabelecida. Embora a fórmula de Friedewald ainda seja amplamente utilizada para estimar o LDL-C, a fórmula mais recente de Martin-Hopkins mostrou maior precisão. Objetivos: Nosso objetivo foi avaliar: A) a proporção de pacientes que atingiram a meta de LDL-C e as terapias utilizadas em um centro terciário; B) o impacto da utilização do método de Martin-Hopkins em vez do método de Friedewald na proporção de pacientes controlados. Métodos: Estudo transversal monocêntrico, incluindo pacientes consecutivos pós-infarto do miocárdio, acompanhados por 20 cardiologistas, em um hospital terciário. Os dados foram coletados retrospectivamente de consultas clínicas realizadas após abril de 2022. Para cada paciente, os níveis de LDL-C e o atingimento das metas foram estimados a partir de um perfil lipídico ambulatorial, utilizando as fórmulas de Friedewald e Martin-Hopkins. Um valor-p bicaudal < 0,05 foi considerado estatisticamente significativo para todos os testes. Resultados: Foram incluídos 400 pacientes (com 67 ± 13 anos, 77% do sexo masculino). Utilizando a fórmula de Friedewald, a mediana de LDL-C sob terapia foi de 64 (50-81) mg/dL, e 31% tinham LDL-C dentro da meta. Estatinas de alta intensidade foram usadas em 64% dos pacientes, 37% estavam em uso de ezetimiba e 0,5% estavam em uso de inibidores de PCSK9. A terapia combinada de estatina de alta intensidade + ezetimiba foi utilizada em 102 pacientes (26%). A aplicação do método de Martin-Hopkins reclassificaria um total de 31 pacientes (7,8%). Entre aqueles considerados controlados pela fórmula de Friedewald, 27 (21,6%) teriam LDL-C estimado por Martin-Hopkins acima da meta. Conclusões: Menos de um terço dos pacientes pós-infarto do miocárdio apresentaram LDL-C dentro da meta. A aplicação da fórmula de Martin-Hopkins reclassificaria um quinto dos pacientes presumivelmente controlados no grupo de pacientes não controlados.

Abstract Background: The European Society of Cardiology guidelines recommend an LDL-cholesterol (LDL-C) < 55 mg/dL for patients with established cardiovascular disease. While the Friedewald equation to estimate LDL-C is still widely used, the newer Martin-Hopkins equation has shown greater accuracy. Objectives: We aimed to assess: A) the proportion of patients reaching LDL-C goal and the therapies used in a tertiary center; B) the impact of using the Martin-Hopkins method instead of Friedewald's on the proportion of controlled patients. Methods: A single-center cross-sectional study including consecutive post-myocardial infarction patients followed by 20 cardiologists in a tertiary hospital. Data was collected retrospectively from clinical appointments that took place after April 2022. For each patient, the LDL-C levels and attainment of goals were estimated from an ambulatory lipid profile using both Friedewald and Martin-Hopkins equations. A two-tailed p-value of < 0.05 was considered statistically significant for all tests. Results: Overall, 400 patients were included (aged 67 ± 13 years, 77% male). Using Friedewald's equation, the median LDL-C under therapy was 64 (50-81) mg/dL, and 31% had LDL-C within goals. High-intensity statins were used in 64% of patients, 37% were on ezetimibe, and 0.5% were under PCSK9 inhibitors. Combination therapy of high-intensity statin + ezetimibe was used in 102 patients (26%). Applying the Martin-Hopkins method would reclassify a total of 31 patients (7.8%). Among those deemed controlled by Friedewald's equation, 27 (21.6%) would have a Martin-Hopkins' LDL-C above goals. Conclusions: Less than one-third of post-myocardial infarction patients had LDL-C within the goal. Applying the Martin-Hopkins equation would reclassify one-fifth of presumably controlled patients into the non-controlled group.

Association of remnant cholesterol with glycemic control and presence of microvascular complications in individuals with type 1 diabetes mellitus.

INTRODUCTION: This study examines the relationship between remnant cholesterol, glucose metrics, and chronic complications of type 1 diabetes in users of glucose monitoring systems. MATERIAL AND METHODS: Clinical variables and glucose metrics were collected from individuals using glucose sensors. Statistical models were employed to investigate the association of remnant cholesterol with glucose metrics, diabetic retinopathy, and diabetic nephropathy. RESULTS: A total of 383 individuals, aged 48.3 ±â€¯16.2 years, with 54.1% women, and a remnant cholesterol level of 16 ±â€¯10 mg/dL, were included. The results demonstrated that remnant cholesterol was associated with less time within the target range (p = 0.015) and more time above the target range (p = 0.003). Diabetic nephropathy was the only complication associated with remnant cholesterol levels exceeding 30 mg/dL, OR 8.93, 95% CI (2.99-26.62), p < 0.001. CONCLUSION: Remnant cholesterol is independently associated with hyperglycemia and diabetic nephropathy in individuals with type 1 diabetes.

Anti-hyperglycemic and anti-hyperlipidemic effects of a methanolic extract of Debregeasia salicifolia in Alloxan-induced diabetic albino mice

Abstract Diabetes mellitus (DM), an endocrine syndrome characterized by high blood glucose levels due to abrogated insulin activity. The existing treatments for DM have side effects and varying degrees of efficacy. Therefore, it is paramount that novel approaches be developed to enhance the management of DM. Therapeutic plants have been accredited as having comparatively high efficacy with fewer adverse effects. The current study aims to elucidate the phytochemical profile, anti-hyperlipidemic, and anti-diabetic effects of methanolic extract D. salicifolia (leaves) in Alloxan-induced diabetic mice. Alloxan was injected intraperitoneally (150 mg kg-1, b.w), to induced diabetes in mice. The mice were divided into three groups (n=10). Group 1 (normal control) received normal food and purified water, Group II (diabetic control) received regular feed and clean water and group III (diabetic treated) received a methanolic extract of the plant (300 mg kg-1) for 28 days with a typical diet and clean water throughout the experiment. Blood samples were collected to checked serum glucose and concentration of LDL, TC, TG. The extract demonstrated significant antihyperglycemic activity (P 0.05), whereas improvements in mice's body weight and lipid profiles were observed after treatment with the extract. This study establishes that the extract has high efficacy with comparatively less toxicity that can be used for DM management.

Resumo Diabetes mellitus (DM) é uma síndrome endócrina caracterizada por níveis elevados de glicose no sangue devido à atividade anulada da insulina. Os tratamentos existentes para o DM têm efeitos colaterais e vários graus de eficácia. Portanto, é fundamental que novas abordagens sejam desenvolvidas para aprimorar o manejo do DM. As plantas terapêuticas foram acreditadas como tendo eficácia comparativamente alta com menos efeitos adversos. O presente estudo visa elucidar o perfil fitoquímico, efeitos anti-hiperlipidêmicos e antidiabéticos do extrato metanólico de D. salicifolia (folhas) em camundongos diabéticos induzidos por aloxana. Alloxan foi injetado por via intraperitoneal (150 mg kg-1, b.w), para induzir diabetes em camundongos. Os camundongos foram divididos em três grupos (n = 10). Grupo 1 (controle normal) recebeu ração normal e água purificada, Grupo II (controle diabético) recebeu ração regular e água limpa, e o grupo III (tratamento diabético) recebeu extrato metanólico da planta (300 mg kg-1) por 28 dias com uma dieta típica e água limpa durante todo o experimento. Amostras de sangue foram coletadas para verificar a glicose sérica e a concentração de LDL, TC, TG. O extrato demonstrou atividade anti-hiperglicêmica significativa (P 0,05), enquanto melhorias no peso corporal e no perfil lipídico dos camundongos foram observadas após o tratamento com o extrato. Este estudo estabelece que o extrato tem alta eficácia com comparativamente menos toxicidade e pode ser usado para o controle do DM.

Participación de rafts en enfermedades neurológicas / Role of rafts in neurological disorders

Introducción: Los rafts constituyen nano-dominios estructurales de naturaleza lipoproteica que propician la eficiente transducción de señales y la modulación de procesos fisiológicos asociados a la membrana plasmática. En el sistema nervioso, la alteración de estos dominios se ha asociado con el desarrollo de diversos padecimientos. Desarrollo: En el presente artículo se revisa el concepto de rafts, los procesos del sistema nervioso en los cuales están involucrados y su papel en distintas afectaciones, entre las que se destacan las enfermedades de Parkinson, Alzheimer y Huntington. Conclusiones: Dadas las evidencias de su participación en diversas neuropatologías, la preservación y/o reconstitución de los rafts se vislumbran como una atractiva estrategia terapéutica.(AU)

Introduction: Rafts are function-structural cell membrane nano-domains. They contribute to explain the efficiency of signal transduction at the low physiological membrane concentrations of the signaling partners by their clustering inside specialized signaling domains. Development: In this article, we review the current model of the membrane rafts and their physio-pathological relevance in the nervous system, including their role in Parkinson, Alzheimer, and Huntington diseases. Conclusions: Rafts disruption/dysfunction has been shown to relate diverse neurological diseases. Therefore, it has been suggested that preservation of membrane rafts may represent a strategy to prevent or delay neuronal dysfunctions in several diseases.(AU)

Evaluación de la composición en ácidos grasos, colesterol, magnesio potasio y sodio de los menús servidos en los comedores colectivos de un colegio e instituto de la Comunidad Valenciana / Evaluation of the composition in fatty acids, cholesterol, magnesium,potassium and sodium of the menus served in the collective canteens of a school and institute of the Valencian Community

Introducción: El aumento de la incidencia y prevalenciade la obesidad en la población infantojuvenil, el exceso deconsumo de sodio, colesterol y grasas saturadas son factoresque implican un incremento del riesgo cardiovascular en laedad adulta, y como consecuencia un problema de salud co-munitaria grave. Por ello se ha desarrollado el presente tra-bajo que incluye la segunda parte del Programa Bon Profitpara una alimentación saludable y responsable en el comedorescolar. Se ha evaluado: la calidad de los lípidos, (atendiendoa su composición en ácidos grasos, contenido en colesterol),así como el contenido en sodio (Na), Potasio(K) y Magnesio(Mg) de los menús servidos en el comedor escolar.Objetivo: Estudio y valoración de la composición en ácidosgrasos, colesterol, Na, K y Mg de los menús escolares, paraevaluar el riesgo cardiovascular, para posteriormente haceruna intervención nutricional: en diseño y elaboración de me-nús y en hábitos alimentarios, con el fin de corregir los me-nús ofertados por la empresa y prevenir el riesgo cardiovas-cular y de obesidad.Materiales y métodos: Se han valorado 28 menús queconstituyen un total de 56 platos. Cada plato se ha muestre-ado durante un periodo de tres meses, mediante método depesada directa, y valorado con el programa informáticoDIAL®, para determinar la composición lipídica: ácidos gra-sos saturados (AGS), monoinsaturados (AGM) y poliinsatura-dos (AGP), colesterol y contenido en sodio (Na), potasio(K) ymagnesio (Mg). Posteriormente se han comparado los valoresobtenidos con las recomendaciones nutricionales para la po-blación estudiada de 900 escolares entre 3 y 19 años.Conclusiones y resultados: Se puede concluir que tantoen los menús del colegio como en los del instituto, la compo-sición en AGS, AGM y AGP sobrepasa las recomendaciones (AU)