scholarly journals Non-invasive arterial stiffness assessment in children with non-alcoholic fatty liver disease

Author(s):  
Yurij Stepanov ◽  
Natalia Zavhorodnia ◽  
Olha Lukianenko ◽  
Irina Konenko ◽  
Victoria Yahmur ◽  
...  

Introduction. Non-alcoholic fatty liver disease (NAFLD) is associated with an increased risk of cardiovascular disease development. The increase of local arterial stiffness and carotid intima-media thickness are the earliest structural and functional changes that can be used for instrumental evaluation. Aim. To study the elasticity of the carotid arteries wall in NAFLD patients, to investigate the association of arterial stiffness parameters with the metabolic profile and anthropometric data. Materials and methods. 113 patients aged 8 to 17 years were examined. Diagnosis of hepatic steatosis was conducted using FibroScan®502touch (Echosens, Paris, France). Ultrasonic examination of vessels was carried out by Soneus P7 (Kharkiv, Ukraine), linear sensor of 5–12 MHz in duplex mode. In the W-track mode, the minimum carotid diameter per heart rate (D), the carotid diameter deviation per heart rate (delta D), the carotid arterial strain (CAS), the cross-sectional compliance coefficient (CC), elastic modulus (EM), stiffness index (SI), carotid pulse wave velocity (PWV) with one-point method were measured. The carotid intima media thickness (cIMT) was examined at the standard point at maximum zooming. Insulin levels were studied using the immune enzyme method with the calculation of the HOMA-IR. Lipid blood profile was evaluated using biochemical analysis. Anthropometric data with waist circumference (WC), hip circumference (HC) measurement, body mass index (BMI) calculation were obtained. Patients group distribution was performed according to the presence of obesity / overweight, liver steatosis / steatohepatitis: group 1 consisted of 34 children with simple steatosis and overweight / obesity, group 2–22 children with steatohepatitis and overweight / obesity, group 3–43 children with overweight / obesity without steatosis, group 4 (control) –14 children with normal weight. Results. There was an increase in the pulse wave velocity (PWV), as well as the elastic modulus (EM) in children with Результати та обговорення. У дітей з НАЖХП спостерігалось зростання швидкості розповсюдження пульсової хвилі (PWV), а також модуля еластичності (ЕМ) із суттєвими відмінностями цих показників у хворих з простим стеатозом. Діти з НАЖХП вирізнялись від контрольної групи достовірним збільшенням індексу жорсткості (SI) судинної стінки. Пацієнти зі стеатогепатитом мали найбільші значення товщини КІМ (0,051 ± 0,001) мм, що суттєво виокремлювало цих хворих від контрольної групи та дітей з надмірною вагою без стеатозу. Аналіз асоціації показника КІМ з антропометричними та метаболічними параметрами в групі хворих зі стеатогепатитом виявив прямий кореляційний зв’язок КІМ з ІМТ (r = 0,577, р = 0,0013), обводом талії (r = 0,604, р = 0,0007), рівнем інсуліну (r = 0,635, р = 0,0003) та НОМА-IR (r = 0,395, р = 0,0253). У мультиваріантному регресійному аналізі показано, що рівень інсуліну (β = 0,00014, р = 0,00767) та обвід талії (β = 0,00024, р = 0,01623) є значущими предикторами змін показника КІМ. Висновки. Перебіг НАЖХП у дітей супроводжується формуванням несприятливого метаболічного профілю, асоційованого зі зростанням локальної артеріальної жорсткості й товщини КІМ. Потужними предикторами збільшення товщини КІМ є вісцеральне ожиріння та гіперінсулінемія. Ключові слова: артеріальна жорсткість, товщина комплексу інтима-медіа, неалкогольна жирова хвороба печінки, діти. Для цитування: Степанов ЮМ, Завгородня НЮ, Лук’яненко ОЮ, Коненко ІС, Ягмур ВБ, Кленіна ІА, Татарчук ОМ, Петішко ОП. Неінвазивна оцінка судинної жорсткості при неалкогольній жировій хворобі печінки у дітей. Журнал Національної академії медичних наук України. 2019;25(4):431–38.

Genes ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1243
Author(s):  
Luigi Castaldo ◽  
Federica Laguzzi ◽  
Rona J. Strawbridge ◽  
Damiano Baldassarre ◽  
Fabrizio Veglia ◽  
...  

Non-alcoholic fatty liver disease (NAFLD) and atherosclerosis-related cardiovascular diseases (CVD) share common metabolic pathways. We explored the association between three NAFLD-associated single nucleotide polymorphisms (SNPs) rs738409, rs10401969, and rs1260326 with sub-clinical atherosclerosis estimated by the carotid intima-media thickness (c-IMT) and the inter-adventitia common carotid artery diameter (ICCAD) in patients free from clinically overt NAFLD and CVD. The study population is the IMPROVE, a multicenter European study (n = 3711). C-IMT measures and ICCAD were recorded using a standardized protocol. Linear regression with an additive genetic model was used to test for association of the three SNPs with c-IMT and ICCAD. In secondary analyses, the association of the three SNPs with c-IMT and ICCAD was tested after stratification by alanine aminotransferase levels (ALT). No associations were found between rs738409, rs1260326, rs10401969, and c-IMT or ICCAD. Rs738409-G and rs10401969-C were associated with ALT levels (p < 0.001). In patients with ALT levels above 28 U/L (highest quartile), we observed an association between rs10401969-C and c-IMT measures of c-IMTmax and c-IMTmean-max (p = 0.018 and 0.021, respectively). In conclusion, NAFLD-associated SNPs do not associate with sub-clinical atherosclerosis measures. However, our results suggest a possible mediating function of impaired liver function on atherosclerosis development.


2017 ◽  
Vol 19 (3) ◽  
pp. 265 ◽  
Author(s):  
Anca Daniela Farcas ◽  
Camelia Larisa Vonica ◽  
Adela Golea

Aims: The objective of this prospective study was to assess the correlation between carotid intima-media thickness at the common carotid (CIMTc) and carotid bifurcation (CIMTb) level, hepatic fat accumulation, and obesity phenotypes.Material and methods: Two hundred obese adults, in which CIMTc and CIMTb thickness was determined, were included. According to body mass index (BMI) and presence of metabolic syndrome (MetS), patients were classified as metabolically healthy obese (MHO, obesity without MetS) and metabolically unhealthy obese (MUHO, obesity with MetS). MHO patients were further classified as MHO1 (obese with increased waist circumference) and MHO2 (obese with increased waist circumference plusone of the 4 criteria for MetS). Non-alcoholic fatty liver disease (NAFLD) presence was assessed by fatty liver index (FLI). Results: CIMTc and CIMTb increased with obesity phenotypes from 0.74 mm and 1.04 mm in MHO1 to 0.84 mm and 1.23 mm in MHO2 and 0.88 mm and 1.74 mm in MUHO. Obesity phenotypes were significantly correlated with CIMTb. NAFLD frequency increased from 66.0% in the MHO1 to 73.0% in the MHO2 and 84.2% in the MUHO (p<0.05). Independent of age, BMI, total cholesterol, HbA1c, and HOMA-IR, the CIMTc was significantly associated with FLI in all obesity phenotypesand CIMTb only in MHO2 and MUHO.Conclusions: Our results suggest that subclinical atherosclerosis varies according to obesity phenotypes and is correlated with the hepatic fat accumulation.


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