Diferencia en las distintas funciones de las lipoproteínas de alta densidad en respuesta a la infección por SARS-CoV-2 / Differential Functions of High-density Lipoproteins in Response to SARS-CoV-2 Infection

RESUMEN Introducción. El síndrome post COVID (SPC), que se caracteriza por síntomas que se extienden superando las 4 semanas post-infección, podría desencadenar aumento en el riesgo cardiovascular. Las lipoproteínas de alta densidad (HDL) presentan funciones antiaterogénicas, como su capacidad para promover el transporte inverso del colesterol (TIC) y su actividad antioxidante, en la que es clave la enzima paraoxonasa 1 (PON 1). Objetivo. Evaluar funcionalidad de HDL en pacientes con SPC comparados con pacientes asintomáticos (PA) y controles. Material y métodos. Se incluyeron 9 individuos con SPC, 18 PA y 10 controles. Se midieron el hemograma, el perfil lipoproteico básico, las apolipoproteínas A-I y B, y marcadores inflamatorios por métodos automatizados. La actividad de PON 1 se evaluó empleando un método espectrofotométrico y los 3 pasos del TIC, eflujo de colesterol (ECC), y actividades de lecitina:colesterol aciltransferasa (LCAT) y proteína transportadora de colesterol esterificado (CETP), por métodos radiométricos. Resultados. No se observaron diferencias en sexo, edad, ni parámetros generales. El grupo PA presentó mayor actividad PON que los controles (94±76 vs. 183±111 vs. 148±58 nmol/mL.min, en controles, PA y SPC, respectivamente; p=0,049). No se observaron diferencias en el TIC. El ECC (r=-0,45; p=0,049) y CETP (r=-0,38; p=0,028) correlacionaron negativamente con el índice neutrófilos/linfocitos. LCAT correlacionó inversamente con la ferritina (r=-0,34; p=0,046). Conclusiones. El incremento de PON 1 en el grupo PA representaría un mecanismo de defensa frente al estrés oxidativo post-infección. Todos los pasos del TIC mostraron una correlación negativa con marcadores inflamatorios. Nuestros resultados podrían explicar, en parte, el vínculo entre COVID y ateroesclerosis.

ABSTRACT Background. Post-COVID syndrome (PCS), characterized by symptoms that persist for more than 4 weeks after initial infection, could increase cardiovascular risk. High-density lipoproteins (HDL) have antiatherogenic functions, such as the ability to promote reverse cholesterol transport (RCT) and antioxidant activity. In this regard, paraoxonase 1 (PON 1) plays a key role. Objective. The aim of this study was to evaluate HDL functions in patients with PCS and compare them with asymptomatic patients (AP) and controls. Methods. The study included 9 patients with PCS, 18 AP and 10 controls. Complete blood count, basic lipoprotein profile, apolipoproteins A-I and B, and inflammatory markers were measured using automated methods. PON 1 activity was evaluated by a spectrophotometric assay, and the 3 steps of RCT, cellular cholesterol (efflux CCE), lecithin-cholesterol acyltransferase (LCAT) activity and cholesteryl ester transfer protein (CETP) activity were evaluated by radiometric assays. Results. There were no differences in sex, age, or general parameters. The AP group had higher PON activity than the control group (94±76 vs. 183±111 vs. 148±58 nmol/mL.min, in controls, AP and PCS, respectively; p=0.049). There were no differences in RCT. Cellular cholesterol efflux (r=-0.45; p=0.049) and CETP (r=- 0.38; p=0.028) had a negative correlation with neutrophil-to-lymphocyte ratio. LCAT had an inverse correlation with ferritin (r=-0.34; p=0.046). Conclusions . Increased antioxidant activity of PON 1 would represent a defensive mechanism against oxidative stress after infection. All the RCT steps had a negative correlation with inflammatory markers. Our findings may explain, at least in part, the link between COVID-19 and atherosclerosis.

Uso de Índices Aterogênicos como Métodos de Avaliação das Doenças Ateroscleróticas Clínicas / Use of Atherogenic Indices as Assessment Methods of Clinical Atherosclerotic Diseases

Resumo Fundamento A busca por métodos clinicamente úteis de avaliação de doenças ateroscleróticas, com boa acurácia, de baixo custo, sem invasividade e de fácil manejo, há anos vem sendo estimulada. Dessa forma, os índices aterogênicos avaliados deste estudo podem se encaixar nesta demanda crescente. Objetivos Avaliar o potencial dos índices aterogênicos como métodos de avaliação de pacientes portadores de aterosclerose clínica. Métodos Estudo transversal de centro único, por meio do qual foram avaliados os índices de Castelli I e II, índice aterogênico plasmático (IAP), índice de combinação de lipoproteínas e a variação do índice de perfusão periférica entre 90 e 120 segundos após um estímulo vasodilatador endotélio-dependente (ΔIPP90-120) na predição de aterosclerose. A significância estatística foi estabelecida em p < 0,05. Resultados A amostra foi composta por 298 indivíduos com idade média de 63,0 ± 16,1 anos, dos quais 57,4% eram mulheres. Comparações pareadas da análise curva ROC dos índices que alcançaram área sob a curva (ASC) > 0,6 mostram que ΔIPP90-120 e IAP foram superiores aos demais índices, sem diferenças observadas entre si (diferença entre ASC = 0,056; IC95% -0,003-0,115). Ademais, tanto a ΔIPP90-120 [odds ratio (OR) 9,58; IC95% 4,71-19,46] quanto o IAP (OR 5,35; IC95% 2,30-12,45) foram preditores independentes de aterosclerose clínica. Conclusões O IAP e ΔIPP90-120 apresentaram melhor acurácia para discriminar aterosclerose clínica. Além disso, foram preditores independentes de aterosclerose clínica, evidenciando uma possibilidade promissora para o desenvolvimento de estratégias preventivas e de controle para doenças cardiovasculares. Tratam-se, portanto, de marcadores adequados para estudos multicêntricos do ponto de vista de praticidade, custo e validade externa.

Abstract Background The search for clinically useful methods to assess atherosclerotic diseases (ASCVD) with good accuracy, low cost, non-invasiveness, and easy handling has been stimulated for years. Thus, the atherogenic indices evaluated in this study may fit this growing demand. Objectives To assess the potential of atherogenic indices to evaluate patients with clinical atherosclerosis. Methods Single-center cross-sectional study, through which the Castelli I and II indices, the atherogenic index of plasma (AIP), the lipoprotein combine index, and the variation in the peripheral perfusion index between 90 and 120 seconds after an endothelium-dependent (ΔPI90-120) vasodilator stimulus were evaluated in the prediction of atherosclerosis. Statistical significance was set at p < 0.05. Results The sample consisted of 298 individuals with an average age of 63.0±16.1 years, of which 57.4% were women. Paired comparisons of the ROC curve analysis of the indices that reached the area under the curve (AUC) > 0.6 show that ΔPI90-120 and AIP were superior to other indices, and no differences were observed between them (difference between AUC = 0.056; 95%CI -0.003-0.115). Furthermore, both the ΔPI90-120 [odds ratio (OR) 9.58; 95%CI 4.71-19.46)] and AIP (OR 5.35; 95%CI 2.30-12.45) were independent predictors of clinical atherosclerosis. Conclusions The AIP and ΔPI90-120 represented better accuracy in discriminating clinical ASCVD. Moreover, they were independent predictors of clinical ASCVD, evidencing a promising possibility for developing preventive and control strategies for cardiovascular diseases. Therefore, they are markers for multicenter studies from the point of view of practicality, low cost, and external validity.

lipoproteínas y colesterol total en adultos con colesterolemia normal y elevada en un policlínico de Lima-Perú 2022: Un estudio correlacional / Lipoproteins and total cholesterol in adults with normal and elevated cholesterolemia in a clinic in Lima-Peru 2022: A correlational study

RESUMEN Objetivo: Evaluar el grado de correlación entre las lipoproteínas de alta densidad, baja densidad, muy baja densidad y el colesterol total en pacientes con colesterolemia normal y alta. Metodología: Estudio observacional, analítico y transversal realizado desde enero a setiembre de 2022 con 207 pacientes mayores de 18 años, divididos en un grupo de colesterol normal y otro con hipercolesterolemia. Se realizó la prueba de correlación de Spearman. Resultados: En normocolesterolémicos, hubo una correlación baja y negativa entre lipoproteínas de alta densidad y las lipoproteínas de baja densidad (-0.263) así como entre lipoproteínas de alta densidad y las de muy baja densidad (-0.220). En hipercolesterolémicos, hubo una correlación baja y positiva entre lipoproteínas de alta densidad con colesterol total (0.344). En ambos grupos, hubo una correlación alta entre colesterol y lipoproteínas de baja densidad y baja y positiva entre colesterol y lipoproteínas de muy baja densidad. Conclusiones: Las lipoproteínas se correlacionan en normocolesterolémicos y las lipoproteínas de alta densidad se correlacionan en hipercolesterolémicos.

ABSTRACT Objective: To evaluate the degree of correlation between high-density, low-density, and very low-density lipoproteins and total cholesterol in patients with normal and high cholesterolemia. Methodology: Observational, analytical and cross-sectional study carried out from January to September 2022 with 207 patients over 18 years of age divided into a group with normal cholesterol and another with hypercholesterolemia. The Spearman correlation test was performed. Results: In normocholesterolemic subjects there was a low and negative correlation between high-density lipoproteins and low-density lipoproteins (-0.263) as well as between high-density lipoproteins and very low-density lipoproteins (-0.220). In hypercholesterolemic patients there was a low and positive correlation between high-density lipoproteins and total cholesterol (0.344). In both groups there was a high correlation between cholesterol and low-density lipoproteins and a low and positive correlation between cholesterol and very low-density lipoproteins. Conclusions: Lipoproteins are correlated in normocholesterolemics and high-density lipoproteins are correlated in hypercholesterolemics.

Interferencia generada por la lipemia en la medición de constituyentes bioquímicos

Introducción. La turbidez por lipemia en las muestras para diagnóstico es una de las principales causas de la aparición de sesgos clínicamente significativos en la medición de magnitudes bioquímicas. Objetivo. Valorar la interferencia por lipemia en la medición de 25 constituyentes bioquímicos en dos analizadores con tecnología de química seca (Vitros 7600®) y química liquida (Atellica® Solution). Métodos. Estudio pre-experimental con pre y posprueba. Se añadieron cantidades crecientes de una emulsión lipídica de nutrición parenteral a siete alícuotas de una mezcla de sueros y se determinó por duplicado la influencia del interferente en 25 constituyentes. Se calculó el porcentaje relativo de desviación de la concentración del constituyente por influencia de la turbidez con respecto a una muestra sin interferente. Se establecieron límites de tolerancia para la interferencia utilizando tres criterios: del distribuidor de reactivos, del error sistemático deseable y del error máximo admisible. Resultados. Los constituyentes que presentaron los mayores sesgos para el analizador de química liquida fueron: fósforo (-84,72%), ALT (+81,25%) y AST (-75,76%), mientras que para la plataforma de química seca los constituyentes: ALT (-79,41%), CK (-28,92%) y lipasa (+24,85%). Se detectó interferencia significativa en diferente número de los constituyentes de acuerdo con el criterio de límite tolerable utilizado. Conclusiones. Los distintos resultados encontrados según la metodología y el analizador utilizado, además de la falta de replicabilidad de los ensayos para la valoración de interferencia por lipemia, origina la necesidad de armonizar los procesos e instaurar límites idénticos de interferencia tolerables entre los laboratorios y proveedores de insumos.

Introduction. Turbidity due to lipemia in diagnostic samples is one of the main causes of the appearance of clinically significant biases in the measurement of biochemical magnitudes. Objective. To assess the interference by lipemia in the measurement of 25 biochemical constituents in two analyzers with dry chemistry technology (Vitros 7600®) and liquid chemistry (Atellica® Solution). Methods. Pre-experimental study with pre and post test. Increasing amounts of a parenteral nutrition lipid emulsion were added to seven aliquots of pooled sera and the influence of the interferent on 25 constituents was determined in duplicate. The relative percentage deviation of the concentration of the constituent due to the influence of turbidity with respect to a sample without interference, was calculated. Tolerance limits for interference were established using three criteria: reagent distributor, desirable systematic error, and maximum permissible error. Results. The constituents that presented the greatest biases for the liquid chemistry analyzer were: Phosphorus (-84.72%), ALT (+81.25%) and AST (-75.76%), while for the dry chemistry platform the constituents, ALT (-79.41%), CK (-28.92%) and lipase (+24.85%). Significant interference was detected in a different number of constituents according to the tolerable limit criteria used. Conclusions. The different results found according to the methodology and the analyzer used, in addition to the lack of replicability of the tests for the evaluation of interference by lipemia, originates the need to harmonize the processes and establish identical limits of tolerable interference between the laboratories and suppliers of inputs.

Investigação da Relação entre Índice de Triglicerídeos-Glicose e Fluxo Lento Coronariano: Um Estudo Retrospectivo de Caso-Controle / Investigation of the Relationship Between Triglycerides-Glucose İndex and Coronary Slow Flow: A Retrospective Case-Control Study

Resumo Fundamento O fluxo lento coronariano (FLC) refere-se à opacificação retardada dos vasos distais na ausência de estenose da artéria coronária epicárdica. O mecanismo etiopatogênico do FLC ainda não está claro. Objetivos Este estudo investiga a relação entre o FLC e o índice de triglicerídeos-glicose (TyG). Métodos A amostra do estudo consistiu de 118 pacientes com FLC e 105 pacientes com fluxo coronariano normal (FCN). A taxa de fluxo coronariano foi medida por medio do método de contagem de quadros (TFC) Thrombolysis in Myocardial Infarction (TIMI) em todos os pacientes. O índice TyG foi calculado como o logaritmo do valor [triglicerídeos em jejum (mg/dL)×glicose em jejum (mg/dL)]/2. Adotou-se como estatisticamente significativo o nível de significância < 0,05. Resultados O índice TyG, lipoproteína de baixa densidade (LDL), índice de massa corporal (IMC), relação neutrófilo-linfócito (RNL) e valores de TFC, proporção masculina e proporção de fumantes foram maiores, enquanto os níveis de lipoproteína de alta densidade (HDL) foram significativamente menores no grupo FLC em comparação com o grupo FNC (p<0,05). A análise de correlação revelou que o FLC estava significativamente correlacionado com os valores do índice TyG, IMC, RNL e HDL. A mais forte dessas correlações foi entre o FLC e o índice TyG (r= 0,57, p<0,001). Além disso, a análise multivariada revelou que o índice TyG, IMC, razão RNL e sexo masculino foram preditores independentes para FLC (p<0,05). A análise da curva ROC (Receiver Operating Characteristic) indicou que um valor de corte ≥ 9,28 para o índice TyG previu FLC com sensibilidade de 78% e especificidade de 78,1% [Área sob a curva (AUC): 0,868 e 95% intervalo de confiança (IC): 0,823-0,914]. Conclusão Os achados deste estudo revelaram uma relação muito forte entre o FLC e o índice TyG.

Abstract Background Coronary slow flow (CSF) refers to delayed distal vessel opacification in the absence of epicardial coronary artery stenosis. The etiopathogenic mechanism of CSF is still unclear. Objectives This study investigates the relationship between CSF and the triglyceride-glucose (TyG) index. Methods The study sample consisted of 118 CSF patients and 105 patients with normal coronary flow (NCF). The coronary flow rate was measured via the Thrombolysis in Myocardial Infarction (TIMI) frame count (TFC) method in all patients. The TyG index was calculated as the logarithm of the [fasting triglyceride (mg/dL)×fasting glucose (mg/dL)]/2 value. A significance level of < 0.05 was adopted as statistically significant. Results The TyG index, low-density lipoprotein (LDL), body mass index (BMI), neutrophil-to-lymphocyte ratio (NLR) and TFC values, male ratio, and the ratio of smokers were higher, whereas high-density lipoprotein (HDL) levels were significantly lower in the CSF group compared to the NCF group (p<0,05). The correlation analysis revealed that CSF was significantly correlated with TyG index, BMI, NLR, and HDL values. The strongest of these correlations was between CSF and TyG index (r= 0.57, p<0.001). Additionally, the multivariate analysis revealed that TyG index, BMI, NLR ratio, and male gender were independent predictors for CSF (p<0.05). Receiver operating characteristic (ROC) curve analysis indicated that a cut-off value of ≥ 9.28 for the TyG index predicted CSF with a sensitivity of 78% and a specificity of 78.1% [Area under the curve (AUC): 0.868 and 95% Confidence Interval (CI): 0.823-0.914]. Conclusion The findings of this study revealed a very strong relationship between CSF and TyG index.

Os Ácidos Graxos Poli-insaturados Ômega-6 e Ômega-3 Presentes nas Hemácias Exercem uma Influência Distinta sobre o Tamanho das Partículas de LDL e suas Alterações Estruturais / Red Blood Cells' Omega-6 and Omega-3 Polyunsaturated Fatty Acids Have a Distinct Influence on LDL Particle Size and its Structural Modifications

Resumo Fundamento Embora os ácidos graxos poli-insaturados ômega-3 e ômega-6 (AGPIs n-3 e n-6) tenham efeitos bem conhecidos sobre os fatores de risco de doenças cardiovasculares (DCV), ainda existe um conhecimento limitado sobre como eles afetam os indicadores de qualidade da LDL. Objetivo Avaliar as associações dos AGPIs n-3 e n-6 de hemácias com o tamanho da partícula da LDL, LDL-c pequena e densa (sdLDL-c) e com LDL eletronegativa [LDL(-)] em adultos com fatores de risco para DCV. Métodos Estudo transversal com 335 homens e mulheres de 30 a 74 anos com, pelo menos, um fator de risco cardiovascular. Foram realizadas análises de parâmetros bioquímicos, como glicose, insulina, HbA1c, proteína C reativa (PCR), perfil lipídico, subfrações de lipoproteínas, partícula eletronegativa de LDL [LDL(-)] e seu autoanticorpo, e os AGPIs n-3 e n- 6 de hemácias. Os testes t independente/teste de Mann-Whitney, ANOVA unidirecional/teste de Kruskal-Wallis e regressões lineares múltiplas foram aplicados. Todos os testes foram bilaterais e um valor de p inferior a 0,05 foi considerado estatisticamente significativo. Resultados A relação n-6/n-3 de hemácias foi associada ao aumento dos níveis de LDL(-) (β = 4,064; IC de 95% = 1,381 - 6,748) e sdLDL-c (β = 1,905; IC de 95% = 0,863 - 2,947), e redução do tamanho das partículas de LDL (β = -1,032; IC de 95% = -1,585 − -0,478). Individualmente, os AGPIs n-6 e n-3 apresentaram associações opostas com esses parâmetros, realçando os efeitos protetores do n-3 e evidenciando os possíveis efeitos adversos do n-6 na qualidade das partículas de LDL. Conclusão O AGPI n-6, presente nas hemácias, foi associado ao aumento do risco cardiometabólico e à aterogenicidade das partículas de LDL, enquanto o AGPI n-3 foi associado a melhores parâmetros cardiometabólicos e à qualidade das partículas de LDL.

Abstract Background While Omega-3 and omega-6 polyunsaturated fatty acids (n-3 and n-6 PUFAs) have established effects on cardiovascular disease (CVD) risk factors, little is known about their impacts on LDL quality markers. Objective To assess the associations of n-3 and n-6 PUFA within red blood cells (RBC) with LDL particle size, small dense LDL-c (sdLDL-c), and electronegative LDL [LDL(-)] in adults with CVD risk factors. Methods Cross-sectional study involving 335 men and women aged 30 to 74 with at least one cardiovascular risk factor. Analyses were conducted on biochemical parameters, such as glucose, insulin, HbA1c, C-reactive protein (CRP), lipid profile, lipoprotein subfractions, electronegative LDL particle [LDL(-)] and its autoantibody, and RBC n-3 and n-6 PUFAs. Independent t-test/Mann-Whitney test, one-way ANOVA/Kruskal-Wallis test, and multiple linear regressions were applied. All tests were two-sided, and a p-value of less than 0.05 was considered statistically significant. Results The RBC n-6/n-3 ratio was associated with increased LDL(-) (β = 4.064; 95% CI = 1.381 - 6.748) and sdLDL-c (β = 1.905; 95% CI = 0.863 - 2.947) levels, and reduced LDL particle size (β = -1.032; 95% CI = -1.585 − -0.478). Separately, n-6 and n-3 PUFAs had opposing associations with those parameters, reinforcing the protective effects of n-3 and showing the potential negative effects of n-6 on LDL particle quality. Conclusion RBC n-6 PUFA was associated with increased cardiometabolic risk and atherogenicity of LDL particles, while n-3 PUFA was associated with better cardiometabolic parameters and LDL particle quality.

Associação Positiva entre Autoanticorpos contra LDL Oxidada e HDL-C: Um Novo Mecanismo para Cardioproteção de HDL? / Positive Association between Autoantibodies Against Oxidized LDL and HDL-C: A Novel Mechanism for HDL Cardioprotection?

Resumo Fundamento No microambiente da placa aterosclerótica, os fosfolipídios oxidados expressos na superfície de lipoproteína de baixa densidade oxidada (oxLDL) se ligam a receptores scavenger em macrófagos provocando a formação de células espumosas e a progressão da placa. Autoanticorpos contra oxLDL (oxLDL-Ab) interagem com epítopos oxidativos levando à formação de imunocomplexos que são incapazes de interagir com receptores de macrófagos, assim suprimindo a aterogênese. A liberação de oxLDL-Ab pelas células B envolve a resposta da interleucina 5 e Th2, que por sua vez são potencializadas pela HDL. Assim, levantamos a hipótese de que indivíduos com níveis mais altos de HDL-C podem apresentar níveis elevados de oxLDL-Ab. Objetivo Avaliar a relação entre os níveis de HDL-C e oxLDL-Ab. Métodos Indivíduos assintomáticos (n = 193) foram agrupados de acordo com sua concentração de HDL-C para uma das três categorias seguintes: baixa (< 68 mg/dL), intermediária (de 68 a 80 mg/dL) ou alta (> 80 mg/dL). Os valores p < 0,05 foram considerados estatisticamente significativos. Resultados Nossa análise incluiu 193 indivíduos (média etária: 47 anos; masculino: 26,3%). Em comparação com os indivíduos no menor tercil de HDL-C, os mais elevados foram mais velhos (36 versus 53 anos; p = 0,001) e, menos frequentemente, masculinos (42,6% versus 20,9%; p = 0,001). Os valores médios de oxLDL-Ab aumentaram à medida que o grupo HDL-C aumentou (0,31, 0,33 e 0,43 unidades, respectivamente; p = 0,001 para tendência). A regressão linear simples encontrou uma relação significativa e positiva entre a variável independente, HDL-C, e a variável dependente, oxLDL-Ab (R = 0,293; p = 0,009). Essa relação manteve-se significativa (R = 0,30; p = 0,044), após ajuste por covariáveis. Os níveis de apolipoproteína AI também estiveram relacionados a oxLDL-Ab nos modelos de regressão linear simples e ajustada. Conclusões HDL-C e oxLDL-Ab estão independentemente relacionados.

Abstract Background In the atherosclerotic plaque microenvironment, oxidized phospholipids expressed in the oxidized low-density lipoprotein (oxLDL) surface bind to scavenger receptors of macrophages eliciting foam cell formation and plaque progression. Auto-antibodies against oxLDL (oxLDL-Ab) interact with oxidative epitopes leading to the formation of immune complexes that are unable to interact with macrophage receptors, thus abrogating atherogenesis. Release of oxLDL-Ab by B cells involves interleukin 5 and Th2 response, which in turn are potentiated by HDL. Thereby, we hypothesized that individuals with higher levels of HDL-C may plausibly display elevated titers of oxLDL-Ab. Objective To evaluate the relationship between HDL-C and oxLDL-Ab levels. Methods Asymptomatic individuals (n = 193) were grouped according to their HDL-C concentration to one of three categories: low (< 68 mg/dL), intermediate (68 to 80 mg/dL) or high (> 80 mg/dL). P values < 0.05 were considered statistically significant. Results Our analysis included 193 individuals (mean age: 47 years; male: 26.3%). Compared to individuals in the lowest HDL-C tertile, those in the highest tertile were older (36 versus 53 years; p = 0.001) and less frequently male (42.6% versus 20.9%; p = 0.001). Mean values of oxLDL-Ab increased as the HDL-C group escalated (0.31, 0.33 and 0.43 units, respectively; p = 0.001 for trend). Simple linear regression found a significant, positive relationship between the independent variable, HDL-C, and the dependent variable, oxLDL-Ab (R = 0.293; p = 0.009). This relation remained significant (R = 0.30; p = 0.044), after adjustment by covariates. Apolipoprotein AI levels were also related to oxLDL-Ab in both simple and adjusted linear regression models. Conclusion HDL-C and oxLDL-Ab are independently related.

The rs4783961 and rs708272 genetic variants of the CETP gene are associated with coronary artery disease, but not with restenosis after coronary stenting / Los polimorfismos rs4783961 y rs708272 del gen CETP son asociados con la enfermedad arterial coronaria y no con la restenosis tras el implante de un stent coronario

Abstract Objective: We evaluated whether cholesteryl ester transfer protein (CETP) gene polymorphisms are associated with the presence of coronary artery disease (CAD) and/or restenosis in patients with coronary stent. Methods: Two polymorphisms of the CETP gene [−971 A/G (rs4783961), and Taq1B A/G (rs708272)] were genotyped by 5'exonuclease TaqMan assays in 219 patients with CAD (66 patients with restenosis and 153 without restenosis) and 607 control individuals. Results: The distribution of polymorphisms was similar in patients with and without restenosis. However, when the whole group of patients (with and without restenosis) was compared to healthy controls, under dominant model, the G allele of the Taq1B A/G polymorphism was associated with increased risk of CAD (odds ratio [OR] = 1.48, pCDom = 0.032). In the same way, under codominant, dominant, and additive models, the A allele of the −971 A/G polymorphisms was associated with an increased risk of developing CAD (OR = 2.03, pCCo-dom = 0.022, OR = 1.83, pCDom = 0.008, and OR = 1.39, pCAdd = 0.011, respectively). In addition, the linkage disequilibrium showed that the "AG" haplotype was associated with increased risk of developing CAD (OR = 1.28, p = 0.03). Conclusion: This study demonstrates that CETP Taq1B A/G and CETP −971 A/G polymorphisms are associated with an increased risk of developing CAD, but no association with restenosis was observed.

Resumen Objetivo: Evaluamos si los polimorfismos del gen CETP están asociados con la presencia de enfermedad arterial coronaria (EAC) y/o restenosis en pacientes con stent coronario. Métodos: En este estudio se genotiparon dos polimorfismos del gen CETP [−971 A/G (rs4783961) y Taq1B A/G (rs708272)] mediante ensayos de 5'exonucleasa TaqMan en 219 pacientes con EAC (66 pacientes con restenosis y 153 sin restenosis), y 607 individuos de control. Resultados: La distribución de polimorfismos fue similar en pacientes con y sin restenosis. Sin embargo, cuando se comparó todo el grupo de pacientes (con y sin restenosis) con controles sanos, bajo el modelo dominante el alelo G del polimorfismo Taq1B A/G se asocia con un mayor riesgo de EAC (OR = 1.48, pCDom = 0.032). De la misma manera, bajo los modelos co-dominante, dominante y aditivo, el alelo A de los polimorfismos −971 A/G se asocia con un mayor riesgo de desarrollar EAC (OR = 2.03, pCCo-dom = 0.022, OR = 1.83, pCDom = 0,008 y OR = 1.39, pCAdd = 0.011, respectivamente). Adicionalmente, el desequilibrio de ligamiento mostró que el haplotipo "AG" se asocia con un mayor riesgo de desarrollar EAC (OR = 1.28, p = 0.03). Conclusión: En resumen, este estudio demuestra que los polimorfismos CETP Taq1B A/G y CETP −971 A/G están asociados con un mayor riesgo de desarrollar CAD, pero no se observó asociación con restenosis.

Relación de riesgo entre dislipidemia y COVID-19 / Risk relationship between dyslipemia and COVID-19

La presencia de dislipidemia en pacientes con la COVID-19 parece agravar el curso clínico de la enfermedad. En esta revisión bibliográfica se describen los principales mecanismos que las vinculan y sus implicaciones en el tratamiento de los pacientes afectados. Para realizar este trabajo se efectuó una búsqueda bibliográfica en bases de datos, tales como Google académico, SciELO, Annual Reviews y PMC. Los descriptores analizados fueron COVID-19, SARS-CoV-2, dislipidemia, LDL-colesterol, HDL-colesterol, triglicéridos, hipercolesterolemia y lipoproteínas VLDL. Se revisaron preferentemente artículos de revistas arbitradas por pares y disponibles a texto completo, publicados en inglés y español. A pesar de las controversias, la dislipidemia es un factor de riesgo de pronóstico desfavorable en afectados con la COVID-19 y el tratamiento para los pacientes con esa condición desfavorable mejora dicho pronóstico.

The presence of dyslipemia in patients with COVID-19 seems to increase the clinical course of the disease. In this literature review the main mechanisms that link them and their implications in the treatment of the affected patients are described. To carry out this work a literature search was made in databases, such as academic Google, SciELO, Annual Reviews and PMC. The analyzed describers were COVID-19, SARS-CoV-2, dyslipemia, LDL-cholesterol, HDL-cholesterol, triglycerides, hypercholesterolemia and VLDL lipoproteins. Articles of magazines arbitrated by pairs and available to complete text, published in English and Spanish were preferably revised. In spite of the controversies, dyslipemia is a risk factor of unfavorable prognosis in patients affected with COVID-19 and the treatment for the patients with that unfavourable condition improve this prognosis.

Os LncRNAs Estão Envolvidos no Processo de Aterosclerose em Diversos Níveis / LncRNAs are Involved in the Process of Atherosclerosis at Diverse Levels

Resumo A aterosclerose é a causa mais comum de doença cardiovascular em todo o mundo, ela está associada a uma alta incidência de eventos clínicos. O acúmulo de evidências elucidou que os RNAs longos não codificantes (LncRNAs) são uma nova classe de transcritos com papéis críticos nos processos fisiopatológicos da aterosclerose. Nesta revisão, resumimos o progresso recente dos LncRNAs no desenvolvimento da aterosclerose. Descrevemos principalmente os diversos mecanismos regulatórios dos LncRNAs nos níveis transcricionais e pós-transcricionais. Este estudo pode fornecer informações úteis sobre os LncRNAs como alvos terapêuticos ou biomarcadores para o tratamento da aterosclerose.

Abstract Atherosclerosis is the most common cause of cardiovascular disease globally, associated with a high incidence of clinical events. Accumulating evidence has elucidated that long non-coding RNAs (lncRNAs) as a novel class of transcripts with critical roles in the pathophysiological processes of atherosclerosis. In this review, we summarize the recent progress of lncRNAs in the development of atherosclerosis. We mainly describe the diverse regulatory mechanisms of lncRNAs at the transcriptional and post-transcriptional levels. This study may provide helpful insights about lncRNAs as therapeutic targets or biomarkers for atherosclerosis treatment.

Combinaciones de síndrome metabólico y riesgo de diabetes mellitus

RESUMEN Introducción: El síndrome metabólico se asocia con un mayor riesgo de padecer diabetes, por lo que su identificación clínica ayuda a identificar a estos pacientes con alto riesgo. Objetivo: Determinar las combinaciones de síndrome metabólico para el riesgo de diabetes mellitus tipo 2 en una muestra de pobladores peruanos. Métodos: Análisis secundario de un estudio de cohorte de 5 años, de la base de datos del estudio PERU MIGRANT. Los componentes alterados del síndrome metabólico fueron lipoproteínas de alta densidad bajo, hipertrigliceridemia; glucosa, presión arterial y cintura abdominal elevadas. En total 35 subgrupos de componentes: 5 grupos para cada uno de los 5 componentes, 10 grupos de combinaciones de 2 componentes y 3 componentes, 5 grupos para la combinación de 4 componentes. Resultados: En el análisis de regresión múltiple, la glucosa como factor independiente presentó un RR estadísticamente significativo (RR= 9,02; IC: 95 % 2,45 - 33,24; p= 0,001). La combinación de 2 factores, presentaron un RR estadísticamente significativo, la glucosa - cintura abdominal (RR= 7,28; IC: 95 % 1,21 - 43,64; p= 0,030) y glucosa - alta densidad bajo (RR= 10,94; IC: 95 % 2,71 - 44,23; p= 0,001). Finalmente, la combinación de glucosa - lipoproteínas de alta densidad - cintura abdominal tenían 7,80 veces el riesgo de presentar diabetes mellitus tipo 2 versus quienes no lo presentaban (RP= 7,80; IC: 95 % 1,39 - 43,77; p= 0,020). Conclusión: Las combinaciones que incluyen al mismo tiempo glucosa - lipoproteínas de alta densidad - cintura abdominal, fueron las combinaciones que más asociaron.

ABSTRACT Introduction: Metabolic syndrome is associated with an increased risk of diabetes, so its clinical identification helps to identify these patients at high risk. Objective: To determine the combinations of metabolic syndrome for the risk of type 2 diabetes mellitus in a sample of Peruvian population. Methods: 5-year cohort study of secondary analysis of the PERU MIGRANT study database. The altered components of the metabolic syndrome were low high-density lipoprotein, hypertriglyceridemia; and elevated glucose, blood pressure and waist circumference. In total 35 subgroups of metabolic syndrome components: 5 groups for each of the 5 components, 10 groups for combinations of 2 components and 3 components, 5 groups for the combination of 4 components. Results: In the multiple regression analysis, only G as an independent factor presented a statistically significant relative risk (RR= 9.02; 95 % CI 2.45 - 33.24; p= 0.001). In relation to the combination of 2 factors, only the combination of glucose-elevated abdominal waist (RR= 7.28; 95 % CI 1.21 - 43.64; p= 0.030) and glucose-high-density lipoprotein (RR= 10.94; 95 % CI 2.71 - 44.23; p= 0.001) presented a statistically significant relative risk. Finally, patients with the glucose-high-density lipoprotein-abdominal waist combination had 7.80 times the risk of presenting type 2 diabetes mellitus versus those who did not (PR= 7.80; CI: 95 % 1.39 - 43.77; p= 0.020). Conclusion: The combinations that include at the same time glucose - high density lipoproteins - abdominal waist, were the most associated combinations.

Ocorrência de dislipidemias e fatores associados em adultos: um estudo de prevalência / Incidencia de dislipidemias y factores asociados en adultos: un estudio de prevalencia / Occurrence of dyslipidemia and associated factors in adults: a prevalence study

RESUMO Objetivo: estimar a prevalência de dislipidemias e os fatores associados em adultos de Rio Branco, Acre. Métodos: estudo de delineamento seccional, populacional, que avaliou adultos (18 a 59 anos) residentes nas zonas urbana e rural de Rio Branco em 2014. As dislipidemias foram definidas conforme os critérios da Atualização da Diretriz Brasileira de Dislipidemias e Prevenção da Ateroscle rose. Empregou-se regressão logística para estimar as odds ratio (OR) e intervalos de confiança de 95% (IC95%). Resultados: a prevalência de dislipidemia, HDL-c baixo, hipertrigliceridemia isolada, hipercolesterolemia isolada e hiperlipidemia mista foi de 56,1%, 37,4%, 23,6%, 9,8% e 3,5%, respectivamente. No modelo final multivariado, apenas a obesidade (OR = 1,86; IC95%: 1,12;3,10) manteve associação estatisticamente significativa com a dislipidemia. Entre os subtipos de dislipidemias, associaram-se à hipertrigliceridemia isolada as variáveis: faixa etária de 40 a 49 anos (OR = 2,17; IC95%: 1,53;4,80); hipercolesterolemia isolada (OR = 2,52; IC95%: 1,23;5,15); HDL-c baixo (OR = 2,53; IC95%: 1,65;3,86); obesidade (OR = 2,10; IC95%: 1,25;3,53); e diabetes mellitus (OR = 5,41; IC95%: 1,46;20,4). Conclusão: a prevalência de alterações lipídicas foi elevada entre adultos. Estratégias de intervenções para diagnóstico, tratamento e intensificação de medidas preventivas e orientações de estilo de vida saudáveis são importantes nessa população.

RESUMEN Objetivo: estimar la prevalencia de dislipidemias y los factores asociados en adultos de Rio Branco, Acre-Brasil. Métodos: estudio de investigación seccional, poblacional, que evaluó adultos (18 a 59 años) residentes en las zonas urbana y rural de Rio Branco en 2014. Las dislipidemias fueron definidas conforme a los criterios de la Actualización de la Directriz Brasileña de Dislipidemias y Prevención de la Aterosclerosis. Se empleó regresión logística para estimar las odds ratio (OR) e intervalos de confianza del 95% (IC95%). Resultados: la prevalencia de dislipidemia, HDL-c bajo, hipertrigliceridemia aislada, hipercolesterolemia aislada e hiperlipidemia mixta fue de 56,1%, 37,4%, 23,6%, 9,8% y 3,5%, respectivamente. En el modelo final multivariado, solo la obesidad (OR = 1,86; IC95%: 1,12;3,10) mantuvo una asociación estadísticamente significativa con la dislipidemia. Entre los subtipos de dislipidemias, se asociaron a la hipertrigliceridemia aislada las variables: franja etaria de 40 a 49 años (OR = 2,17; IC95%: 1,53;4,80); hipercolesterolemia aislada (OR = 2,52; IC95%: 1,23;5,15); HDL-c bajo (OR = 2,53; IC95%: 1,65;3,86); obesidad (OR = 2,10; IC95%: 1,25;3,53); y diabetes mellitus (OR = 5,41; IC95%: 1,46;20,4). Conclusión: la prevalencia de cambios lipídicos fue elevada entre adultos. Estrategias de intervenciones para el diagnóstico, tratamiento e intensificación de medidas preventivas y orientaciones de estilo de vida saludables son importantes en esa población.

ABSTRACT Objective: to estimate the prevalence of dyslipidemia and associated factors in adults in Rio Branco, Acre. Methods: a cross-sectional, population-based study that assessed adults (age 18 to 59 years) living in urban and rural areas of Rio Branco in 2014. Dyslipidemias were defined according to the criteria of the Brazilian Guidelines Update on Dyslipidemias and Prevention of Atherosclerosis. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI95%). Results: the prevalence of dyslipidemia, low HDL-c, isolated hypertriglyceridemia, isolated hypercholesterolemia and mixed hyperlipidemia was 56.1%, 37.4%, 23.6%, 9.8% and 3.5%, respectively. In the final multivariate model, only obesity (OR = 1.86; CI95%: 1.12; 3.10) maintained a statistically significant association with dyslipidemia. Among the dyslipidemia subtypes, the following variables were associated with isolated hypertriglyceridemia: age group 40 to 49 years (OR = 2.17; CI95%: 1.53; 4.80); isolated hypercholesterolemia (OR = 2.52; CI95%: 1.23; 5.15); low HDL-c (OR = 2.53; CI95%: 1.65; 3.86); obesity (OR = 2.10; CI95%: 1.25;3.53); and diabetes mellitus (OR = 5.41; CI95%: 1.46; 20.4). Conclusion: the prevalence of lipid alterations was high among adults. Intervention strategies for diagnosis, treatment and intensification of preventive measures and healthy lifestyle guidelines are important in this population.

Effect of low-density lipoproteins and trehalose on the quality of cryopreserved bovine semen / Efecto de las lipoproteínas de baja densidad y la trehalosa en la calidad del semen bovino criopreservado / Efeito das lipoproteínas de baixa densidade e trealose na qualidade do sêmen bovino criopreservado

Abstract Background: In artificial insemination, chicken egg yolk is added to bovine semen to protect it during the cryopreservation process, although it contains substances that can affect the microbiological quality and metabolism of sperm. Objective: To evaluate post-thaw quality of bovine cryopreserved semen added with centrifuged and non-centrifuged egg yolk, low-density lipoproteins (LDL), and trehalose (T). Methods: Ten ejaculates from five bulls were cryopreserved under the treatments T1: pure egg yolk (PEY) at 20% v/v, T2: centrifuged egg yolk (CEY) at 20% v/v, T3: LDL at 8% v/v, T4: T at 100 mM, and T5: T at 100 mM plus LDL at 8% v/v (TLDL). Spermatic motility and kinetics, functional membrane integrity (FMI), structural membrane integrity (SMI), sperm vitality (SV) and abnormal morphology (AM) were assessed using the Sperm Class Analyzer (SCA®) system, hypoosmotic test (HOST), SYBR/PI probes, and eosin-nigrosin staining, respectively. A completely randomized design was used. Normal distribution of the variables was validated through the Kolmogórov- Smirnov test. A generalized linear model was used to determine sources of variation. Means were compared using the Tukey test. Results: Inclusion of CEY or LDL had a similar effect on sperm protection, and were superior for motility, kinetics and membrane integrity compared to the other treatments (p<0.05). CEY was superior for progressive motility (p<0.05). The cryoprotective action of LDL was similar to TLDL for motility and kinetics, SMI, SV, and AM (p<0.05). Inclusion of PEY and T resulted in the lowest semen quality (p<0.05). The use of T resulted in a reduction in FMI and SMI (p<0.05). No differences in AM between treatments were found (p>0.05). Conclusions: Egg yolk can be replaced by centrifuged egg yolk or low-density lipoproteins in the freezing extender used for bovine semen used in artificial insemination.

Resumen Antecedentes: la yema de huevo de gallina se agrega al semen bovino usado en inseminación artificial para protegerlo durante el proceso de criopreservación, aunque ésta tiene sustancias que pueden afectar el metabolismo espermatico y la calidad microbiológica del semen. Objetivo: evaluar la calidad post-descongelación del semen bovino criopreservado agregado con yema de huevo centrifugada y no centrifugada, lipoproteínas de baja densidad (LDL) y trehalosa (T). Métodos: diez eyaculados de cinco toros se criopreservaron bajo los tratamientos, T1: yema de huevo pura (PEY) al 20% v/v, T2: yema de huevo centrifugada (CEY) al 20% v/v, T3: LDL al 8% v/v, T4: T a 100 mM, y T5: T a 100 mM más LDL al 8% v/v (TLDL). La movilidad y la cinética espermática, la integridad funcional de la membrana (FMI), la integridad estructural de la membrana (SMI), la vitalidad espermática (SV) y la morfología anormal (AM), se determinaron mediante el sistema Sperm Class Analyzer (SCA®), la prueba hipoosmótica (HOST), las sondas SYBR/PI y la tinción con eosina-nigrosina, respectivamente. Se utilizó un diseño completamente al azar. La normalidad de las variables se validó mediante la prueba de Kolmogórov-Smirnov. Se utilizó un modelo lineal generalizado para determinar las fuentes de variación. Las medias de los tratamientos se compararon mediante la prueba de Tukey. Resultados: CEY y LDL tuvieron un efecto similar en la protección de los espermatozoides, siendo superiores a los demás tratamientos respecto a movilidad, cinética e integridad de la membrana (p<0,05). CEY fue superior para la movilidad progresiva (p<0,05). La acción crioprotectora de LDL fue similar a TLDL para movilidad y cinética, SMI, AM y SV (p<0,05). PEY y T resultaron en la más baja calidad seminal (p<0,05). El uso de T redujo la FMI y la SMI (p<0,05). No se encontraron diferencias en AM entre los tratamientos (p>0,05). Conclusiones: la yema de huevo puede reemplazarse por yema de huevo centrifugada o por lipoproteinas de baja densidad en el diluyente de congelación usado para semen bovino destinado a inseminacion artificial.

Resumo Antecedentes: a gema de ovo de galinha tem sido utilizada com a finalidade de proteger o sêmen bovino durante o processo de criopreservação, embora tenha substâncias que possam afetar o metabolismo dos espermatozóides e a qualidade microbiológica do sêmen utilizado para a inseminação artificial. Objetivo: avaliar a qualidade pós-descongelamento do sêmen bovino criopreservado com gema de ovo centrifugada e não centrifugada, lipoproteínas de baixa densidade (LDL) e trealose (T). Métodos: dez ejaculados de cinco touros foram criopreservados sob os tratamentos, T1: gema de ovo pura (PEY) 20% v/v, T2: gema de ovo centrifugada (CEY) 20% v/v, T3: LDL 8% v/v, T4: T 100 mM e T5: T 100 mM mais LDL 8% v/v (TLDL). Mobilidade e cinética espermática, integridade funcional da membrana (FMI), integridade estrutural da membrana (SMI), vitalidade espermática (SV) e morfologia anormal (AM) foram determinadas por o sistema Sperm Class Analyzer (SCA®), teste hiposmótico (HOST), coloração com SYBR/PI e eosina-nigrosina, respectivamente. Um design completamente aleatoriedade foi usado. A normalidade das variáveis foi validada pelo teste de Kolmogorov-Smirnov. Um modelo linear generalizado foi utilizado para determinar as fontes de variação. As médias dos tratamentos foram comparadas pelo teste de Tukey. Resultados: T2 (CEY) e T3 (LDL) tiveram efeito similar na proteção espermática, sendo superior aos demais tratamentos para mobilidade, cinética e integridade da membrana (p<0,05). T2 (CEY) foi superior para mobilidade progressiva (p<0,05). A ação crioprotetora de T3 (LDL) foi semelhante à T5 (TLDL) para motilidade e cinética, SMI, SV e AM (p<0,05). T1 (PEY) e T4 (T) tiveram a menor qualidade seminal (p<0,05). O uso de T4 (T) produziu uma redução na SMI e FMI (p<0,05). Não foram encontradas diferenças na AM entre os tratamentos (p>0,05). Conclusões: a gema de ovo pode ser substituída por gema de ovo centrifugada ou lipoproteínas de baixa densidade no diluente de congelamento de sêmen bovino.

Vulnerabilidad cardiometabólica e indicadores bioquímicos en el momento de la captación de la embarazada y en el posparto / Cardiometabolic vulnerability and biochemical indicators during recruitment of pregnant women and in the postpartum period

Introducción: Son escasos los estudios sobre acumulaciones excesivas de tejido adiposo y su asociación con cambios en indicadores bioquímicos estudiados durante el embarazo y el posparto. Objetivo: Determinar asociaciones de la vulnerabilidad cardiometabólica por adiposidad corporal con indicadores bioquímicos en el momento de la captación de la embarazada y el posparto. Métodos: Se realizó estudio observacional prospectivo de la vulnerabilidad cardiometabólica por adiposidad corporal e indicadores bioquímicos en 773 mujeres captadas como sanas de peso adecuado, de ellas 119 al posparto, en el policlínico Chiqui Gómez Lubián. Se estudiaron por grupo de vulnerabilidad cardiometabólica indicadores bioquímicos a la captación y el posparto. Se aplicó prueba estadística de Kruskal-Wallis. Resultados: Gestantes captadas con vulnerabilidad global por adiposidad general intermedia y central alta tuvieron valores medios más bajos del ácido úrico (238,78 mmol/L), más altos de triglicéridos (1,37 mmol/L), colesterol (4,70 mmol/L) y resistencia a la insulina (8,32). Mujeres con vulnerabilidad global por adiposidad general intermedia y central alta al posparto presentaron valores medios más elevados de triglicéridos (1,18 mmol/L) y lipoproteínas de muy baja densidad (0,54 mmol/L), más bajos de lipoproteínas de alta densidad (1,06 mmol/L); mujeres con vulnerabilidad global extrema por adiposidad general y central alta, tuvieron valores medios más elevados: glicemia (4,90 mmol/L), colesterol (4,30 mmol/L), lipoproteínas de baja densidad (2,76 mmol/L), producto de acumulación de lípidos (42,63 mmol/L) e índice de adiposidad visceral (2,32 mmol/L). Conclusiones: Evaluar vulnerabilidad cardiometabólica por técnicas antropométricas, complementadas con indicadores bioquímicos, facilita orientar acciones preventivas sobre daños cardiometabólicos progresivos en la gestación y su posparto(AU)

Introduction: Few studies are available about excessive accumulation of adipose tissue and its association to changes in biochemical indicators in pregnancy and the postpartum period. Objective: Determine the association between cardiometabolic vulnerability due to body adiposity and biochemical indicators during recruitment of pregnant women and in the postpartum period. Methods: An observational prospective study was conducted of cardiometabolic vulnerability due to body adiposity and biochemical indicators in 773 women recruited as healthy and adequate weight, 119 of them in the postpartum period, at Chiqui Gómez Lubián polyclinic. Biochemical indicators were studied by cardiometabolic vulnerability group at recruitment and in the postpartum period. Statistical analysis was based on the Kruskal-Wallis test. Results: Pregnant women recruited with overall vulnerability due to high general intermediate and central adiposity had lower uric acid mean values (238.78 mmol/l), higher triglyceride mean values (1.37 mmol/l), cholesterol (4.70 mmol/l) and insulin resistance (8.32). Women with overall vulnerability due to high general intermediate and central adiposity in the postpartum period had higher triglyceride mean values (1.18 mmol/l), very low density lipoproteins (0.54 mmol/l), and lower high density lipoprotein mean values (1.06 mmol/l). Women with extreme overall vulnerability due to high general and central adiposity had higher mean values: glycemia (4.90 mmol/l), cholesterol (4.30 mmol/l), low density lipoproteins (2.76 mmol/l), lipid accumulation product (42.63 mmol/l) and visceral adiposity index (2.32 mmol/l). Conclusions: Evaluating cardiometabolic vulnerability using anthropometric techniques complemented with biochemical indicators, facilitates aiming preventive actions at progressive cardiometabolic damage during pregnancy and the postpartum period(AU)

Indicadores de aterogenicidad en la predicción del síndrome metabólico en adultos, Trujillo-Perú

RESUMEN Objetivo: Evaluar los indicadores de aterogenicidad en la predicción del síndrome metabólico. Métodos: Se realizó un estudio descriptivo, transversal en adultos de la ciudad de Trujillo en 321 personas de 25 a 65 años que acudieron a cuatro centros de salud, de julio a diciembre de 2019. El síndrome metabólico se determinó mediante criterios de la Asociación Latinoamericana de Diabetes (ALAD) 2018 y del Adult Treatment Panel III (ATP III). Resultados: La presencia de síndrome metabólico según los criterios del ALAD y ATPIII fue de 46,1% y 48,6% respectivamente. Los índices aterogénicos con valores de riesgo más prevalentes correspondieron al Colesterol No HDL 72%; Índice de Castelli 68,2% y el índice TG/HDL en 58,3% de los participantes. Tanto para el criterio ALAD como ATPIII, el índice aterogénico que mostró la mejor predicción fue el TG/HDL seguido del índice de Castelli en el caso del ATP III. Conclusión: El índice de TG/HDL es el indicador con mejor predicción del síndrome metabólico.

ABSTRACT Objective: To evaluate atherogenicity indicators in the prediction of metabolic syndrome. Methods: A descriptive, cross-sectional study was conducted in adults from the city of Trujillo in 321 people aged 25 to 65 years who accessed care at four health centers, between July-December 2019. Metabolic syndrome was determined by using criteria of the Latin American Diabetes Association (LADA) 2018 and the Adult Treatment Panel III (ATP III). Results: The presence of metabolic syndrome according to LADA and ATP III criteria was 46.1% and 48.6%, respectively. The atherogenic indexes with the most prevalent risk values corresponded to non HDL cholesterol 72%; Castelli index 68.2% and TG/HDL index in 58.3% of the participants. For both LADA and ATP III criteria, the atherogenic index that showed the best prediction was TG/HDL followed by the Castelli index in the case of ATP III. Conclusion: The TG/HDL index is the indicator with the best prediction of metabolic syndrome.