Метаболическое моделирование жировой болезни печени – фактора для проградиентного течения синдрома поликистозных яичников
Metabolic dysfunction-associated fatty liver disease (MAFLD) is a multifactorial liver disease that often develops in patients with polycystic ovary syndrome (PCOS), is accompanied by hormonal imbalance, chronic inflammation and may be combined with iron overload. This article presents a simulation modeling of MAFLD with multiple organ dysfunction syndrome (MODS) caused by combined intake of excess saturated fat (palm oil), carbohydrates (fructose) and inorganic iron (ferrous sulfate) with histological confirmation of changes in the liver and other organs. The approach to the correction of such MODS was tested using a complex agent containing 1200 mg of inositols in two forms in the ratio of 5:1 – myoinositol 1000 mg and D-chiro-inositol 200 mg, combined with folic acid (200 mg) and manganese pyroglutamate (pydolate) (5 mg) in 1 sachet (a biologically active food supplement «Dikirogen»). Analysis of the complex pattern of changes in biochemical parameters and improvement in histological parameters of liver, kidney, heart and brain slices due to the administration of pharma-nutraceutical indicates the efficacy of its use on the modeling of MAFLD. The normalization of elevated levels of ferritin, transferrin saturation coefficient and serum iron levels was observed in experimental animals with pharmaco-nutraceutical «Dikirogen», as well as regression of signs of MODS achieved during the experiment, which was manifested by (1) normalization of elevated levels of white blood cells, (2) restoration of creatinine and glomerular filtration rate (GFR) levels (nephroprotection), (3) restoration of aminotransferase and total protein levels (hepatoprotection). Positive histological confirmations of the above described biochemical findings were obtained. Thus, the experimental model shows that Dikirogen can contribute to the regression of MODS associated with the development of MAFLD in iron overload. Key words: metabolic dysfunction-associated fatty liver disease, polycystic ovary syndrome, myoinositol, D-chiroinositol, ferroptosis, hemosiderosis, palm oil, fructose, animals
- Discussion
34
- 10.1016/j.jhep.2021.09.002
- Sep 14, 2021
- Journal of Hepatology
NAFLD vs. MAFLD – It is not the name but the disease that decides the outcome in fatty liver
- Discussion
10
- 10.1016/j.jceh.2020.08.002
- Aug 9, 2020
- Journal of Clinical and Experimental Hepatology
Changing Nomenclature from Nonalcoholic Fatty Liver Disease to Metabolic Dysfunction-Associated Fatty Liver Disease – Not Only Premature But Also Confusing
- Research Article
2
- 10.1111/jog.16335
- Jun 1, 2025
- The journal of obstetrics and gynaecology research
To study the prevalence and predictors of non-alcoholic fatty liver disease (NAFLD) and metabolic dysfunction-associated fatty liver disease (MAFLD) in women with polycystic ovarian syndrome (PCOS). Seventy-eight PCOS patients and 78 age and body mass index (BMI)-matched controls were studied. PCOS was diagnosed by Rotterdam criteria. Clinical examination, biochemical, and hormonal investigations, and transabdominal sonography were done for all participants. Based on gray-scale sonography, NAFLD was graded as 0, 1, 2, and 3. MAFLD was diagnosed when imaging or serological evidence of fatty liver disease was present and one of the following three criteria was met: overweight/obesity, diabetes, or metabolic disorders. Women with PCOS had a higher prevalence of NAFLD (53.8% vs. 17.9%; p < 0.001), MAFLD (70.5% vs. 48.7%; p < 0.01), insulin resistance (HOMA-IR 2.8 ± 1.3 vs. 1.4 ±0.3; p < 0.001) and metabolic syndrome (51.3% vs. 10.3%; p < 0.001) and higher values of waist-hip ratio (0.88 ± 0.1 vs. 0.83 ± 0.1; p < 0.001), alaninetransferase (44.1 ± 19.7 vs. 30.3 ± 7.6; p < 0.001), and free androgen index (FAI; 7.8 ± 4.4 vs. 3.4 ± 1.7; p < 0.001) than controls. Twenty-three percent of PCOS patients with NAFLD and 18.4% with MAFLD had Grades 2and 3 disease. Among different PCOS phenotypes, phenotype A was maximally affected with NAFLD and MAFLD. Multiple regression analysis showed that PCOS status and FAI were the predicting factors for NAFLD. MAFLD was significantly associated with hepatic steatosis index (HSI). PCOS patients were at a higher risk for NAFLD and MAFLD than age- and BMI-matched controls. The prevalence of NAFLD and MAFLD was highest in phenotype A. Hyperandrogenism is a predictor of NAFLD in PCOS.
- Discussion
30
- 10.1016/j.jhep.2020.12.025
- Jan 13, 2021
- Journal of Hepatology
Yet more evidence that MAFLD is more than a name change
- Discussion
18
- 10.1016/j.jhep.2020.06.036
- Aug 13, 2020
- Journal of hepatology
Reply to: Correspondence on “A new definition for metabolic associated fatty liver disease: an international expert consensus statement”: MAFLD: Moving from a concept to practice
- Research Article
27
- 10.14218/jcth.2024.00311
- Nov 4, 2024
- Journal of clinical and translational hepatology
With the rising epidemic of obesity, metabolic syndrome, and type 2 diabetes mellitus in China, metabolic dysfunction-associated non-alcoholic fatty liver disease has become the most prevalent chronic liver disease. This condition frequently occurs in Chinese patients with alcoholic liver disease and chronic hepatitis B. To address the impending public health crisis of non-alcoholic fatty liver disease and its underlying metabolic issues, the Chinese Society of Hepatology and the Chinese Medical Association convened a panel of clinical experts to revise and update the "Guideline of prevention and treatment of non-alcoholic fatty liver disease (2018, China)". The new edition, titled "Guideline for the prevention and treatment of metabolic dysfunction-associated fatty liver disease (Version 2024)", offers comprehensive recommendations on key clinical issues, including screening and monitoring, diagnosis and evaluation, treatment, and follow-up for metabolic dysfunction-associated fatty liver disease and metabolic dysfunction-associated steatotic liver disease. Metabolic dysfunction-associated fatty liver disease is now the preferred English term and is used interchangeably with metabolic dysfunction-associated steatotic liver disease. Additionally, the guideline emphasizes the importance of multidisciplinary collaboration among hepatologists and other specialists to manage cardiometabolic disorders and liver disease effectively.
- Discussion
41
- 10.1016/j.jhep.2020.07.008
- Sep 17, 2020
- Journal of hepatology
Letter regarding “A new definition for metabolic dysfunction-associated fatty liver disease: An international expert consensus statement”
- Research Article
2
- 10.5152/tjg.2023.23004
- Dec 1, 2023
- The Turkish Journal of Gastroenterology
Background/Aims:Metabolic dysfunction-associated fatty liver disease is a crucial global health concern. Studies have shown that metabolic dysfunction-associated fatty liver disease patients are at higher risk of severe coronavirus disease 2019. However, there are no precise measures of the correlation between the degree of metabolic dysfunction-associated fatty liver disease fibrosis and coronavirus disease 2019 severity. This study evaluated the association between metabolic dysfunction-associated fatty liver disease with varying degrees of fibrosis and coronavirus disease 2019 prognosis.Materials and Methods:All hospitalized coronavirus disease 2019 patients who had liver steatosis as determined by computed tomography scan were included. Metabolic dysfunction-associated fatty liver disease was diagnosed in accordance with international consensus criteria. Liver fibrosis was assessed using the nonalcoholic fatty liver disease fibrosis score, FIB-4 and FIB-8 indexes. Coronavirus disease 2019 severity was defined using World Health Organization criteria. Logistic regression was used to determine the associations between varying degrees of fibrosis and the severity of coronavirus disease 2019.Results:A total of 996 confirmed hospitalized coronavirus disease 2019 cases with complete data were reviewed; of these, 296 (29.7%) cases of metabolic dysfunction-associated fatty liver disease were diagnosed. Metabolic dysfunction-associated fatty liver disease patients with any fibrotic state had more severe coronavirus disease 2019 than nonmetabolic dysfunction-associated fatty liver disease patients (adjusted odds ratio 1.912, 95% CI 1.363-2.684; P < .05). Multiple logistic regression analysis showed that metabolic dysfunction-associated fatty liver disease patients with significant fibrosis according to the FIB-8 score were more likely to have severe coronavirus disease 2019 (adjusted odds ratio 5.458, 95% CI 1.481-20.110; P < .05).Conclusion:The presence of metabolic dysfunction-associated fatty liver disease in hospitalized coronavirus disease 2019 patients strongly correlated with the severity of coronavirus disease 2019. The hepatic FIB-8 index appears to provide the best prognostic value among the fibrosis scores in metabolic dysfunction-associated fatty liver disease patients with coronavirus disease 2019.
- Front Matter
8
- 10.1016/j.jhep.2021.11.001
- Dec 6, 2021
- Journal of Hepatology
Expanding the liver exposome: Should hepatologists care about air pollution?
- Discussion
470
- 10.1016/j.jhep.2020.03.044
- Apr 8, 2020
- Journal of Hepatology
Non-alcoholic fatty liver diseases in patients with COVID-19: A retrospective study
- Front Matter
2
- 10.1097/cm9.0000000000002136
- May 20, 2022
- Chinese medical journal
The increasing burden of non-alcoholic fatty liver disease: Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the world. NAFLD encompasses a spectrum of liver disease, ranging from simple hepatic steatosis to non-alcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). With the pandemic of obesity and type 2 diabetes mellitus (T2DM), there has been an exponential growth in the prevalence of NAFLD over the past two decades. The prevalence of NAFLD in most Asian countries, including China, is above 25% in the general adult population.[1] Furthermore, there is a developing childhood obesity pandemic, and a meta-analysis of 20,595 children in Asia generated a pooled NAFLD prevalence of 5.53%, which had increased by approximately 1.6-fold since 2010. The pooled prevalence of NAFLD in Asian children increased from those with normal weight (1.5%) to those who were overweight (16.7%) or obese (50.1%).[2] A recent study suggested that NAFLD is not uncommon in lean Chinese adults with a normal waist circumstance. Metabolic risk factors, rather than genetic factors, may play an important role in the development of lean NAFLD,[3] and the hepatic and extra-hepatic complications can also develop in lean patients, which reinforces the importance of considering metabolic phenotype in the assessment of NAFLD, rather than using body mass index-based approaches.[4] Renaming of NAFLD to MAFLD: A diagnosis of NAFLD is made on the basis of histological or imaging-derived evidence of steatosis, in the absence of a known etiology of fatty liver. With advances in knowledge of the pathogenesis of the condition, the "exclusive" term NAFLD no longer serves to precisely describe a highly heterogeneous disease. In 2020, the novel term of metabolic dysfunction-associated fatty liver disease (MAFLD) was proposed in an attempt to create an "inclusive" diagnosis.[5] Zeng et al[6] performed a cross-sectional study of Chinese adults which showed that the prevalence of MAFLD is higher than that of NAFLD, and therefore the newly-defined label of MAFLD may better reflect the metabolic pathogenesis. Furthermore, a pathologic analysis of patients with MAFLD showed that a single metabolic defect can have a significant role in the development of fibrosis and that insulin resistance plays a key role in the progression of steatohepatitis and the development of significant fibrosis.[7] As Zheng et al discussed, by using the new terminology, "cryptogenic cirrhosis" and MAFLD can now be diagnosed in lean individuals using metabolic criteria, rather than being viewed as completely separate entities. The renaming of NAFLD to MAFLD may result in significant improvements in awareness, advocacy, research, and the clinical management of the condition.[8] Update on the pathogenesis of MAFLD: The pathogenesis of NAFLD/MAFLD is a multifactorial process, involving interactions among nutrition, metabolism, genetic predisposition, the gut microbiota, and environmental factors. Although a great deal of progress has been made in recent decades, the pathogenic mechanism of NAFLD/MAFLD has yet to be fully elucidated. In this issue of the Chinese Medical Journal (CMJ), Pan et al[9] give an overview of the role of hepatocyte nuclear factor 4α (HNF4α) in the pathogenesis of NAFLD. HNF4α has been shown to regulate bile acid, lipid, and glucose metabolism; and hepatic HNF4α expression is much lower in patients with NAFLD and mouse models of NASH. Furthermore, there is evidence that hepatic HNF4α plays a key role in the initiation and progression of NAFLD and may represent a therapeutic target for NAFLD.[9] Huang et al[10] presented a systematic review regarding the role of retinol-binding protein 4 (RBP4) in the development of NAFLD and its potential therapeutic application. RBP4 induces hepatic de novo lipogenesis, impairs fatty acid oxidation, increases insulin resistance, and promotes hepatic inflammation. Furthermore, a high plasma RBP4 concentration is associated with a high risk of NAFLD; and agents that reduce the circulating RBP4 concentration and/or hepatic RBP4 expression have a protective effect against NAFLD. These findings suggest that RBP4 could be targeted as a novel diagnostic marker or therapeutic target for NAFLD.[10] Jackson et al[11] summarized the essential physiology of bile acid and sphingolipid metabolism, because the dysregulation of both are potential contributors to NAFLD. Specifically, the dysregulation of bile acid and sphingolipid metabolism has been linked to hepatic steatosis, inflammation, and fibrosis, and the further exploration of the pathologic effects mediated by bile acids and sphingolipids may also lead to new diagnostic and therapeutic strategies for NAFLD. Hepatitis B and concurrent MAFLD: Concomitant NAFLD/MAFLD in patients with chronic hepatitis B (CHB) has become highly prevalent over the past two decades. However, the risks associated with the dual etiologies, outcomes, and mechanisms involved in the interaction between CHB and NAFLD have not been fully characterized. Tong et al[12] summarize the findings of recent clinical and basic research studies related to the potential interactions between CHB and NAFLD. The prevalence of hepatic steatosis in CHB has been reported to be 32.8% (95% CI, 28.9%–37.0%); and it is higher in men and patients with obesity. The presence of hepatic steatosis in patients with CHB is related to metabolic, rather than viral factors. Patients with both CHB and NAFLD are more likely to experience liver-related outcomes or death than those with CHB alone. Many studies have shown that steatosis is positively associated with the clearance of hepatitis B virus (HBV) surface antigen and a reduction in HBV DNA, and the prevalence and incidence of NAFLD in patients with CHB may be lower than in those without. In Chang and colleagues' multi-center, prospective study of 1000 treatment-naïve patients with biopsy-confirmed CHB, NASH was found in 182 patients (18.2%), 46% of these achieved resolution of NASH, and only 4% of the patients developed new-onset NASH after 72 weeks of entecavir treatment. Body mass at baseline and a slight weight change during follow-up were associated with the prevalence, incidence, and remission of NASH in patients with CHB.[13] Finally, steatosis is more prevalent in patients with CHB and is a common reason for abnormal circulating liver enzyme activities in infected patients with a low HBV-DNA load or a good response to infection. From MAFLD to HCC: Although viral hepatitis remains the most common etiology of liver cancer-related deaths, NAFLD is the most rapidly growing contributor to mortality and morbidity related to liver disease in the world. The global burden of HCC is increasing alongside the NAFLD pandemic. A recently published review in CMJ summarizes the characteristics of NAFLD-related HCC.[14] The incidence of NAFLD-related HCC is much higher in patients with severe steatohepatitis, advanced fibrosis, and cirrhosis than in individuals with NAFLD in general, and it is most likely to occur in older men with metabolic syndrome. The incidence of HCC in patients with NAFLD-related cirrhosis is lower than that in those with hepatitis C virus- or HBV-related cirrhosis. Compared with HCCs of other etiologies, NAFLD-related HCCs are generally large, well-differentiated, solitary lesions with a higher level of inflammatory infiltration, and they are less likely to metastasize extra-hepatically. Moreover, NAFLD-related HCC is more likely to develop in the absence of cirrhosis.[14] In a recent issue of CMJ, Rios et al reviewed the progression of MAFLD to HCC and stated that lipotoxicity, insulin resistance, oxidative stress, chronic inflammation, multiple gene mutations, and alterations to the fecal microbial composition are the most important factors determining hepatic carcinogenesis, whereas steatohepatitis and fibrosis are not essential for the development of HCC in obesity-related fatty liver disease.[15] Non-invasive diagnosis of MAFLD: Accumulating evidence suggests that non-invasive tests can be used to diagnose NAFLD, assess its severity, and predict its prognosis. In a recent issue of CMJ, Li et al review new developments in non-invasive testing for NAFLD, with respect to steatosis, steatohepatitis, and fibrosis.[16] For the identification of steatosis, ultrasonography remains the most common method, because of its wide availability and low cost, but magnetic resonance imaging-proton density fat fraction is currently the most accurate means of identifying hepatic steatosis, and transient elastography (TE) represents a promising technique for the evaluation of hepatic steatosis and fibrosis. Except for the widely used controlled attenuation parameter, ultrasonographic attenuation has been reported to have a low failure rate and shows moderate-to-high performance for the discrimination of degrees of steatosis in patients with chronic liver disease.[17] Various non-invasive algorithms, such as the fatty liver index (FLI) and hepatic steatosis index (HSI), have been used as screening tests for steatosis in epidemiologic studies. In Chen et al's study, both FLI and HSI were shown to be useful screening tools for NAFLD in adults with obstructive sleep apnea/hypopnea syndrome.[18] In patients with steatohepatitis, some circulating biomarkers correlate with the severity of NASH but show modest predictive accuracy. Regarding liver fibrosis, liver stiffness measurement (LSM) using TE is highly accurate and is widely used worldwide. Magnetic resonance elastography is marginally better than TE, but it is limited by its cost and availability. In contrast, simple fibrosis scores, such as the fibrosis-4 (FIB-4) index and the NAFLD fibrosis score, can be easily calculated and are recommended for use in primary care. These scores and LSM have sufficiently high negative predictive values to exclude advanced fibrosis. Recently, Shi et al found that the combination of the presence of a metabolic disorder and the FIB-4 index provides for a more accurate diagnosis of advanced fibrosis in patients with NAFLD.[19] Thus, as part of the redefinition of MAFLD, metabolic risk factors should be taken into account during diagnosis and management. Therapeutic approaches to MAFLD: In a recent issue of CMJ, Shi et al[20] discuss recent advances and provide a perspective regarding the treatment of MAFLD. Weight management through an appropriate diet and physical activity remains the most important component of the treatment of MAFLD. Weight loss through bariatric surgery may be an effective means of achieving significant improvements in patients with morbid obesity and MAFLD. Although numerous agents, including novel modulators of glucolipid metabolism, are being assessed in clinical trials, there is still no approved drug for the treatment of MAFLD. The nomenclature of MAFLD emphasizes the existence of concomitant metabolic disorders and obesity, and patients with MAFLD are therefore subject to both hepatic and other metabolic risks. Thus, drugs targeting underlying cardiometabolic risk factors are essential to improve the outcomes of patients with MAFLD. The screening of patients who are at a high risk of MAFLD and the provision of a comprehensive individual therapeutic program are critical. For example, patients with MAFLD and T2DM would benefit from the use of antidiabetic agents, patients with overweight or obesity would gain greater benefit from weight management, and those with metabolic syndrome require comprehensive individualized management. These therapeutic approaches might help identify the patients with MAFLD who are at the greatest risk of disease progression and facilitate more precise and appropriate management. Summary and prospects: The growing burden of NAFLD parallels the increasing prevalences of obesity and metabolic syndrome worldwide. Cardiometabolic risk factors have a bidirectional relationship with NAFLD. The majority of patients with NAFLD meet the diagnostic criteria for MAFLD, and this represents a more appropriate term. Further clinical studies of the changes created by the redefinition of NAFLD/MAFLD, including the epidemiologic character, prognosis, diagnosis, prevention, and treatment of the condition, are required. Currently, MAFLD and CHB are increasingly being diagnosed in the same individuals, and the pathophysiological interaction between MAFLD and HBV infection in patients is worthy of further exploration. The long-term outcomes of MAFLD are related to the severity of metabolic dysfunction and liver fibrosis, rather than obesity. Metabolic syndrome and T2DM are the most important risk factors for MAFLD-related cirrhosis and HCC. A lack of awareness regarding the factors underlying MAFLD-related HCC may lead to delay in its diagnosis. The further development and validation of non-invasive diagnostic techniques and clinical pathways will help clinicians assess the severity of MAFLD, categorize patients, and identify those requiring specific treatments. There is still no effective approved drug for MAFLD, but the in-depth study of pathologic mechanisms may provide new therapeutic targets. Measures to increase awareness and treat or prevent the associated cardiometabolic diseases are necessary to reduce the growing burden of MAFLD. Funding This study was supported by grants from the National Key Research and Development Program of China (No. 2021YFC2700802), the National Natural Science Foundation of China (Nos. 81900507 and 82170593). Conflicts of interest None.
- Research Article
18
- 10.3389/fendo.2022.957245
- Aug 31, 2022
- Frontiers in Endocrinology
BackgroundA number of epidemiological studies have suggested an association between metabolic dysfunction-associated fatty liver disease (MAFLD) and the incidence of atrial fibrillation (AF). However, the pathogenesis leading to AF in the context of MAFLD remains unclear. We therefore aimed at assessing the impact of MAFLD and liver fibrosis status on left atrium (LA) structure and function.MethodsPatients with a Fatty Liver Index (FLI) >60 and the presence of metabolic comorbidities were classified as MAFLD+. In MAFLD+ patients, liver fibrosis severity was defined using the non-alcoholic fatty liver disease (NAFLD) Fibrosis Score (NFS), as follows: MAFLD w/o fibrosis (NFS ≦ −1.455), MAFLD w/indeterminate fibrosis (−1.455 < NFS < 0.675), and MAFLD w/fibrosis (NFS ≧ 0.675). In the first cohort of patients undergoing AF ablation, the structural and functional impact on LA of MAFLD was assessed by LA strain analysis and endocardial voltage mapping. Histopathological assessment of atrial fibrosis was performed in the second cohort of patients undergoing cardiac surgery. Finally, the impact of MAFLD on AF recurrence following catheter ablation was assessed.ResultsIn the AF ablation cohort (NoMAFLD n = 123; MAFLD w/o fibrosis n = 37; MAFLD indeterm. fibrosis n = 75; MAFLD w/severe fibrosis n = 10), MAFLD patients with high risk of F3–F4 liver fibrosis presented more LA low-voltage areas as compared to patients without MAFLD (16.5 [10.25; 28] vs 5.0 [1; 11] low-voltage areas p = 0.0115), impaired LA reservoir function assessed by peak left atrial longitudinal strain (19.7% ± 8% vs 8.9% ± 0.89% p = 0.0268), and increased LA volume (52.9 ± 11.7 vs 43.5 ± 18.0 ml/m2 p = 0.0168). Accordingly, among the MAFLD patients, those with a high risk of F3–F4 liver fibrosis presented a higher rate of AF recurrence during follow-up (p = 0.0179). In the cardiac surgery cohort (NoMAFLD n = 12; MAFLD w/o fibrosis n = 5; MAFLD w/fibrosis n = 3), an increase in histopathological atrial fibrosis was observed in MAFLD patients with a high risk of F3–F4 liver fibrosis (p = 0.0206 vs NoMAFLD; p = 0.0595 vs MAFLD w/o fibrosis).ConclusionIn conclusion, we found that liver fibrosis scoring in MAFLD patients is associated with adverse atrial remodeling and AF recurrences following catheter ablation. The impact of the management of MAFLD on LA remodeling and AF ablation outcomes should be assessed in dedicated studies.
- Research Article
13
- 10.1186/s12876-022-02576-4
- Nov 19, 2022
- BMC Gastroenterology
BackgroundA recently proposed diagnostic criteria of metabolic dysfunction-associated fatty liver disease (MAFLD) is more available for various clinical situations than nonalcoholic fatty liver disease (NAFLD), but understanding about differences between NAFLD and MAFLD in clinical practice remains limited in the general adult urban population in China.MethodsA total of 795 subjects were recruited from Wu Song Branch of Zhongshan Hospital who participated in the general health assessment. Examination results was obtained through analysis of blood samples and abdominal ultrasonography. Participants were divided into four subgroups according to whether they had NAFLD or MAFLD (NAFLD- MAFLD-, NAFLD + MAFLD-, NAFLD- MAFLD + and NAFLD + MAFLD+).ResultsAmong the urban healthy adults investigated, 345 people (43.4%) were diagnosed with NAFLD and 356 people (44.8%) with MAFLD. No significant differences in the prevalence, age, fasting blood glucose, glycosylated hemoglobin, liver enzyme examination, percentage of overweight, hypertension or dyslipidaemia were found between NAFLD and MAFLD patients. Patients with MAFLD had worse metabolic disorders than NAFLD + MAFLD- patients. The NAFLD fibrosis score (NFS) of the NAFLD- MAFLD + group was higher than that of the NAFLD + MAFLD- group. Higher proportion of patients in the NAFLD- MAFLD + group have NFS ≥-1.455.ConclusionMAFLD criteria have similar prevalence and patient characteristics compared with previous NAFLD but help to identify a group of patients with high risks of metabolic disorders and liver fibrosis who have been missed with NAFLD, and has superior utility.
- Research Article
1
- 10.22141/2224-0551.19.3.2024.1696
- May 26, 2024
- CHILD`S HEALTH
The literature review highlights the issue of genetic risk factors associated with the development of metabolic dysfunction-associated fatty liver disease. Human genetic examinations revealed 132 genes among which 32 loci are strongly associated with the pathogenesis of metabolic dysfunction-associated fatty liver disease. It has been found that the risk of developing metabolic dysfunction-associated fatty liver disease is carried by single-nucleotide variants of various genes whose products are involved in lipid and carbohydrate metabolism, maintenance of the redox state, the development of inflammation and fibrosis of liver tissue, which are components of metabolic dysfunction-associated fatty liver disease reactome. The authors presented a detailed list of genetic factors singling out those that influence the risk of metabolic dysfunction-associated fatty liver disease and directly metabolic dysfunction-associated steatohepatitis and liver fibrosis. Also, they emphasized that it is the single-nucleotide variants of the genes of protein 3 containing a patatin-like phospholipase domain, transmembrane 6 superfamily member 2, and 17b-hydroxysteroid dehydrogenase type 13 that are characterized by the highest degree of association with metabolic dysfunction-associated fatty liver disease (odds ratio > 1.6) compared to single-nucleotide variants of other genes identified by gene association studies. The combination of several polymorphisms increases the risk of development and severity of metabolic dysfunction-associated fatty liver disease. The additive steatogenic effect of protein 3 single-nucleotide gene variants containing a patatin-like phospholipase domain and transmembrane 6 superfamily member 2 is probably due to an increased expression of genes involved in de novo lipogenesis. The authors emphasize the need for genetic risk assessment of metabolic dysfunction-associated fatty liver disease, which should include molecular genetic testing at an early stage of examination.
- Research Article
1
- 10.3389/fendo.2025.1480528
- Aug 4, 2025
- Frontiers in Endocrinology
IntroductionPolycystic ovary syndrome (PCOS) is associated with an increased risk of non-alcoholic fatty liver disease (NAFLD). With the introduction of the new definition of metabolic dysfunction-associated fatty liver disease (MAFLD), there has been a lack of studies investigating the prevalence and clinical characteristics of PCOS and its phenotypes, including hyperandrogenism (HA), oligoanovulation (OA), and polycystic ovarian morphology (PCO) in association with MAFLD. The aim of this study is to explore MAFLD prevalence in young women with PCOS and determine the independent impact of PCOS phenotypes on MAFLD.MethodsThis cross-sectional study included 1,422 women with PCOS diagnosed using the Rotterdam criteria, the presence of at least two of three diagnostic criteria: 1) hyperandrogenism (HA), 2) oligoanovulation (OA), and 3) polycystic ovary morphology (PCO).ResultsAmong women with PCOS, 31.2% had NAFLD, and 65.1% of them were diagnosed with MAFLD. In PCOS phenotypes, MAFLD prevalence was 25.1% for HA+OA+PCO, 27.6% for HA+OA, 8.8% for HA+PCO, and 13.0% for OA+PCO. Women with PCOS and HA+OA+PCO had higher odds of MAFLD (OR [95% CI] of 1.47 [1.04–2.09]), as did those with HA+OA (1.87 [1.18–2.96]), after adjusting for demographic and clinical factors. However, the association between women with PCOS and HA+PCO and MAFLD was not statistically significant (0.51 [0.21–1.24]).DiscussionIn women with PCOS, both HA+OA+PCO and HA+OA phenotypes were independently associated with MAFLD. HA and OA may contribute independently to the higher prevalence of MAFLD in these individuals.
- Ask R Discovery
- Chat PDF
AI summaries and top papers from 250M+ research sources.