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  1. Article ; Online: Hepatic steatosis and respiratory diseases

    Alan Eduardo Botello-Manilla / Guillermo Nahúm López-Sánchez / Norberto Carlos Chávez-Tapia / Misael Uribe / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 24, Iss , Pp 100320- (2021)

    a new panorama

    2021  

    Abstract: Non-alcoholic fatty liver disease is defined as hepatic fat accumulation in more than 5% of hepatocytes, without other liver steatosis causes. It comprises a broad spectrum that can range from benign steatosis and progress to non-alcoholic ... ...

    Abstract Non-alcoholic fatty liver disease is defined as hepatic fat accumulation in more than 5% of hepatocytes, without other liver steatosis causes. It comprises a broad spectrum that can range from benign steatosis and progress to non-alcoholic steatohepatitis, fibrosis, and ultimately hepatocellular carcinoma. Non-alcoholic fatty liver is considered a multisystemic disease since it is related to multiple disorders, such as type 2 diabetes mellitus, polycystic ovary syndrome, chronic kidney disease, psoriasis, osteoporosis, hypothyroidism, cardiovascular diseases, and obstructive sleep apnea syndrome; it is becoming increasingly clear that it is also a risk factor for developing certain respiratory diseases. This article aims to understand the liver and chronic obstructive pulmonary disease mechanisms, obstructive sleep apnea syndrome, asthma, and lung cancer. Given that non-alcoholic fatty liver disease has a considerable impact on the patient’s well-being and life quality, as well as on the costs they generate for the country’s health services, it is essential to continue research, especially in areas such as the respiratory tract, as there is much misinformation about it.
    Keywords Asthma ; Chronic obstructive pulmonary disease ; Inflammation ; Obstructive sleep apnea ; Pulmonary cancer ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Non-alcoholic fatty liver disease and microRNAs expression, how it affects the development and progression of the disease

    Guillermo Nahúm López-Sánchez / Mayra Dóminguez-Pérez / Misael Uribe / Norberto Carlos Chávez-Tapia / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 21, Iss , Pp 100212- (2021)

    2021  

    Abstract: The obesity pandemic that affects the global population generates one of the most unfavorable microenvironmental conditions in the hepatocyte, which triggers the metabolic hepatopathy known as non-alcoholic fatty liver; its annual rates increase in its ... ...

    Abstract The obesity pandemic that affects the global population generates one of the most unfavorable microenvironmental conditions in the hepatocyte, which triggers the metabolic hepatopathy known as non-alcoholic fatty liver; its annual rates increase in its prevalence and does not seem to improve in the future. The international consortia, LITMUS by the European Union and NIMBLE by the United States of America, have started a race for the development of hepatic steatosis and steatohepatitis reliable biomarkers to have an adequate diagnosis. MicroRNAs have been proposed as diagnostic and prognostic biomarkers involved in adaptation to changes in the liver microenvironment, which could improve clinical intervention strategies in patients with hepatic steatosis.
    Keywords NAFLD ; miRNA ; NASH ; Epigenetics ; Specialties of internal medicine ; RC581-951
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Hepatic mir-122-3p, mir-140-5p and mir-148b-5p expressions are correlated with cytokeratin-18 serum levels in MAFLD

    Guillermo N. López-Sánchez / Eduardo Montalvo-Javé / Mayra Domínguez-Perez / Barbara Antuna-Puente / Fredy O. Beltrán-Anaya / Alfredo Hidalgo-Miranda / Norberto C. Chávez-Tapia / Misael Uribe / Natalia Nuño- Lámbarri

    Annals of Hepatology, Vol 27, Iss 6, Pp 100756- (2022)

    2022  

    Abstract: Introduction and objectives: Metabolic-associated fatty liver disease (MAFLD) is defined by steatosis in more than 5% of hepatocytes without other liver diseases. Patients with this disease can progress to multiple stages like liver fibrosis, cirrhosis, ... ...

    Abstract Introduction and objectives: Metabolic-associated fatty liver disease (MAFLD) is defined by steatosis in more than 5% of hepatocytes without other liver diseases. Patients with this disease can progress to multiple stages like liver fibrosis, cirrhosis, and hepatocellular carcinoma. miRNAs are single-stranded molecules that regulate metabolic homeostasis; their differential expression postulates them as potential circulating biomarkers for MAFLD. Previous research reported that hsa-miR-140-5p, hsa-miR-148-5p, and hsa-miR-122-3p have a differential expression in patients with MAFLD. This study aimed to investigate the correlation between liver hsa-miR-140-5p, hsa-miR-148-5p, and hsa-miR-122-3p and serum biomarkers CK-18, APOB, IL-6, IL-32, and TNF-α in patients with MAFLD compared with control patients. Materials and methods: A cross-sectional study was carried out with 16 patients of both sexes, aged between 18-60 years, to determine the association between the levels of hsa-miR-140-5p, hsa-miR-148-5p, and hsa-miR-122-3p with MAFLD in liver biopsies of patients who underwent laparoscopic cholecystectomy. Results: Twelve patients presented MAFLD, four without hepatic steatosis. Circulating levels of CK-18 showed a significant difference in patients with MAFLD, and a strong correlation was found between hsa-miR-122-3p, hsa-miR-140-5p, and hsa-miR-148b-5p versus the CAP value. Conclusion: There is a correlation between elevated tissue expression of hsa-miR-122-3p, hsa-miR-140-5p, and hsa-miR-148b-3p with plasma levels of CK-18 in patients with simple steatosis compared with patients without the disease.
    Keywords microRNA ; Metabolic dysregulation ; Biomarkers ; Liver ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Inulin Improves Diet-Induced Hepatic Steatosis and Increases Intestinal Akkermansia Genus Level

    Carlos Pérez-Monter / Alejandro Álvarez-Arce / Natalia Nuño-Lambarri / Ivonne Escalona-Nández / Eva Juárez-Hernández / Norberto C. Chávez-Tapia / Misael Uribe / Varenka J. Barbero-Becerra

    International Journal of Molecular Sciences, Vol 23, Iss 991, p

    2022  Volume 991

    Abstract: Hepatic steatosis is characterized by triglyceride accumulation within hepatocytes in response to a high calorie intake, and it may be related to intestinal microbiota disturbances. The prebiotic inulin is a naturally occurring polysaccharide with a high ...

    Abstract Hepatic steatosis is characterized by triglyceride accumulation within hepatocytes in response to a high calorie intake, and it may be related to intestinal microbiota disturbances. The prebiotic inulin is a naturally occurring polysaccharide with a high dietary fiber content. Here, we evaluate the effect of inulin on the intestinal microbiota in a non-alcoholic fatty liver disease model. Mice exposed to a standard rodent diet or a fat-enriched diet, were supplemented or not, with inulin. Liver histology was evaluated with oil red O and H&E staining and the intestinal microbiota was determined in mice fecal samples by 16S rRNA sequencing. Inulin treatment effectively prevents liver steatosis in the fat-enriched diet group. We also observed that inulin re-shaped the intestinal microbiota at the phylum level, were Verrucomicrobia genus significantly increased in the fat-diet group; specifically, we observed that Akkermansia muciniphila increased by 5-fold with inulin supplementation. The family Prevotellaceae was also significantly increased in the fat-diet group. Overall, we propose that inulin supplementation in liver steatosis-affected animals, promotes a remodeling in the intestinal microbiota composition, which might regulate lipid metabolism, thus contributing to tackling liver steatosis.
    Keywords hepatic steatosis ; intestinal microbiota ; prebiotics ; inulin ; A. muciniphila ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 610
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Laparoscopic cholecystectomy

    Itzayana Rodríguez-Antonio / Guillermo N. López-Sánchez / Víctor A. Reyes-Gómez / Ericka H. Contreras-Flores / Fernanda Farías-García / Mariana Espejel-Deloiza / Marco A. Durán-Padilla / Fredy Chablé-Montero / Misael Uribe / Norberto C. Chávez-Tapia / Eduardo E. Montalvo-Javé / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 27, Iss 2, Pp 100651- (2022)

    Histopathological analysis of metabolic associated fatty liver disease and fibrosis

    2022  

    Abstract: Introduction: Metabolic (dysfunction) associated fatty liver disease (MAFLD) and cholelithiasis are highly prevalent and are associated with common risk factors such as obesity, hypertriglyceridemia, and fasting glucose levels; however, it is not clear ... ...

    Abstract Introduction: Metabolic (dysfunction) associated fatty liver disease (MAFLD) and cholelithiasis are highly prevalent and are associated with common risk factors such as obesity, hypertriglyceridemia, and fasting glucose levels; however, it is not clear whether cholelithiasis is associated with MAFLD or fibrosis. Objective: To determine MAFLD severity and associated risk factors in patients diagnosed with cholelithiasis. Materials and methods: Observational, cross-sectional and prolective study (from October 2018 to March 2020) of patients undergoing elective laparoscopic cholecystectomy with liver biopsy, excluding other causes of hepatic disease or significant alcohol consumption. MAFLD detection was based on histology using the Kleiner score and one of the following criteria: overweight/obesity, T2DM, or evidence of metabolic dysregulation. The AST to Platelet Ratio Index, the NAFLD Fibrosis Score, the fibrosis-4 index and the hepatic steatosis index were performed to assess the relationship of non-invasive hepatic scores with histopathology. Results: 80 patients median age (interquartile range) was 42 (18) years, with a BMI of 27.9 (6.11) Kg/m2. Of all patients, 58.8% had MAFLD, 78.7% were women, and 13.8% had the severe form (formerly named NASH). No substantial correlation between biochemical parameters and histopathological analysis of MAFLD and fibrosis was observed. Conclusion: Because cholelithiasis and MAFLD are highly prevalent diseases, it is essential to conduct studies on the relationship between both pathologies. Currently, liver biopsy is the best diagnostic method since the predictive biochemical models did not show a substantial correlation to classify MAFLD. Its early detection is relevant since a considerable percentage of advanced fibrosis (8.7%) was found.
    Keywords Fibrosis ; Inflammation ; Metabolic dysfunction ; Steatosis ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Mitochondrial Molecular Pathophysiology of Nonalcoholic Fatty Liver Disease

    Natalia Nuño-Lámbarri / Varenka J. Barbero-Becerra / Misael Uribe / Norberto C. Chávez-Tapia

    International Journal of Molecular Sciences, Vol 17, Iss 3, p

    A Proteomics Approach

    2016  Volume 281

    Abstract: Nonalcoholic fatty liver disease (NAFLD) is a chronic liver condition that can progress to nonalcoholic steatohepatitis, cirrhosis and cancer. It is considered an emerging health problem due to malnourishment or a high-fat diet (HFD) intake, which is ... ...

    Abstract Nonalcoholic fatty liver disease (NAFLD) is a chronic liver condition that can progress to nonalcoholic steatohepatitis, cirrhosis and cancer. It is considered an emerging health problem due to malnourishment or a high-fat diet (HFD) intake, which is observed worldwide. It is well known that the hepatocytes’ apoptosis phenomenon is one of the most important features of NAFLD. Thus, this review focuses on revealing, through a proteomics approach, the complex network of protein interactions that promote fibrosis, liver cell stress, and apoptosis. According to different types of in vitro and murine models, it has been found that oxidative/nitrative protein stress leads to mitochondrial dysfunction, which plays a major role in stimulating NAFLD damage. Human studies have revealed the importance of novel biomarkers, such as retinol-binding protein 4, lumican, transgelin 2 and hemoglobin, which have a significant role in the disease. The post-genome era has brought proteomics technology, which allows the determination of molecular pathogenesis in NAFLD. This has led to the search for biomarkers which improve early diagnosis and optimal treatment and which may effectively prevent fatal consequences such as cirrhosis or cancer.
    Keywords proteomics ; NAFLD ; mitochondrial dysfunction ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 610
    Language English
    Publishing date 2016-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Association Between Serum Hemoglobin Levels and Non Alcoholic Fatty Liver Disease in a Mexican Population

    Eva Juárez-Hernández / Norberto C. Chávez-Tapia / Diana C. Brizuela-Alcántara / Misael Uribe / Martha H. Ramos-Ostos / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 17, Iss 4, Pp 577-

    2018  Volume 584

    Abstract: Introduction and aim. Nonalcoholic fatty liver disease (NAFLD) is closely associated with overweight and obesity, becoming one of the most prevalent hepatic diseases nowadays. Circulating hemoglobin (Hb) concentration is significantly higher in people ... ...

    Abstract Introduction and aim. Nonalcoholic fatty liver disease (NAFLD) is closely associated with overweight and obesity, becoming one of the most prevalent hepatic diseases nowadays. Circulating hemoglobin (Hb) concentration is significantly higher in people with NAFLD, compared to healthy patients. While liver biopsy remains the gold standard for NAFLD diagnosis, it is not the best technique due to adverse events that may occur. Therefore it is important to find less invasive and more sensitive markers. This study aimed to determine the association of serum Hb levels in patients with steatosis and fibrosis as a noninvasive marker.Material and methods. A 1,186 patient cross-sectional study nested in a randomized clinical trial (NCT01874249) was conducted. Patients were diagnosed by ultrasound for hepatic steatosis and fibroscan for fibrosis; blood test and anthropometric measurements were also assessed.Results. Serum Hb increased proportionally related to the steatosis level, being significantly higher in patients with severe steatosis than in patients with moderate and mild steatosis.Conclusion. Patients with non-alcoholic fatty liver disease showed elevated levels of circulating Hb, evidence that suggests that Hb exerts a protective role, as it may act as an antioxidant and may counteract the adverse effects of this disease.
    Keywords Antioxidant ; Hepatic disease ; Non-invasive markers ; Steatosis ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2018-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Cerebral hemodynamics in the non-alcoholic fatty liver

    David Vidal-González / Guillermo Nahúm López-Sánchez / Luis Arturo Concha-Rebollar / Andrea Rodríguez-Herrera / Fernando Morales-Ramirez / Norberto Chávez-Tapia / Misael Uribe / Juan Alberto Nader-Kawachi / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 19, Iss 6, Pp 668-

    2020  Volume 673

    Abstract: Introduction and objectives: The association between non-alcoholic fatty liver disease and cerebral hemodynamics arises from cardiovascular damage mechanisms such as endothelial dysfunction, arterial wall increased stiffness, high thickness of the ... ...

    Abstract Introduction and objectives: The association between non-alcoholic fatty liver disease and cerebral hemodynamics arises from cardiovascular damage mechanisms such as endothelial dysfunction, arterial wall increased stiffness, high thickness of the intimate index of the internal carotid artery, left ventricular hypertrophy, left diastolic dysfunction, calcification coronary arteries and increased epicardial fat. The multidirectional relationship between systemic inflammation and lipid metabolism constitutes a common and simultaneous mechanism that causes vascular damage. This study aims to provide insight into the relationship between non-alcoholic fatty liver disease and the function of systemic circulation and cerebral circulation using Doppler ultrasound. Patients and methods: Is an observational, cross-sectional, prospective, comparative study conducted at Medica Sur Hospital. Thirty-five patients were selected consecutively. The patients consulted neurological service for various symptoms without severity criteria, such as vertigo, primary headache and balance disturbances. Results: There is a difference in the variables mean of the right MCA PI (p = 0.023), left MCA PI” (p = 0.004), and left VA PI (p = 0.036) between the control and NAFLD groups. The correlation analysis between these variables and the CAP showed a positive correlation of the three variables with the CAP, ''right MCA PI'' (r = 0.384), left MCA PI ''(r = 0.509) and'' left VA PI '' (r = 0.551). Conclusions: This study demonstrates a subclinical process of the middle cerebral artery in subjects with NAFLD, which suggests it may be involved in the disease development and points the need to make decisions for this liver manifestation prevention and treatment.
    Keywords Pulsatility index ; Resistance index ; Hepatic steatosis ; Cerebral vascular disease ; Inflammation ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Cholesterol enrichment in liver mitochondria impairs oxidative phosphorylation and disrupts the assembly of respiratory supercomplexes

    Estel Solsona-Vilarrasa / Raquel Fucho / Sandra Torres / Susana Nuñez / Natalia Nuño-Lámbarri / Carlos Enrich / Carmen García-Ruiz / José C. Fernández-Checa

    Redox Biology, Vol 24, Iss , Pp - (2019)

    2019  

    Abstract: Mitochondrial cholesterol accumulation is a hallmark of alcoholic and non-alcoholic fatty liver diseases and impairs the function of specific solute carriers through changes in membrane physical properties. However, its impact on mitochondrial ... ...

    Abstract Mitochondrial cholesterol accumulation is a hallmark of alcoholic and non-alcoholic fatty liver diseases and impairs the function of specific solute carriers through changes in membrane physical properties. However, its impact on mitochondrial respiration and organization of respiratory supercomplexes has not been determined so far. Here we fed mice a cholesterol-enriched diet (HC) supplemented with sodium cholate to examine the effect of cholesterol in mitochondrial function. HC feeding increased liver cholesterol content, which downregulated Srebp2 and Hmgcr expression, while sodium cholate administration decreased Cyp7a1 and Cyp8b1 mRNA levels, suggesting the downregulation of bile acid synthesis through the classical pathway. HC-fed mice exhibited increased expression of Stard1 and Mln64 and enhanced mitochondrial free cholesterol levels (2–3 fold), leading to decreased membrane fluidity. Mitochondria from HC-fed mice displayed increased cholesterol loading in both outer and inner mitochondrial membranes. Cholesterol loading decreased complex I and complex II-driven state 3 respiration and mitochondrial membrane potential. Decreased respiratory and uncoupling control ratio from complex I was also observed after in situ enrichment of mouse liver mitochondria with cholesterol or enantiomer cholesterol, the mirror image of natural cholesterol. Moreover, in vivo cholesterol loading decreased the level of complex III2 and the assembly of respiratory supercomplexes I1+III2+IV and I1+III2. Moreover, HC feeding caused oxidative stress and mitochondrial GSH (mGSH) depletion, which translated in hepatic steatosis and liver injury, effects that were rescued by replenishing mGSH with GSH ethyl ester. Overall, mitochondrial cholesterol accumulation disrupts mitochondrial functional performance and the organization of respiratory supercomplexes assembly, which can contribute to oxidative stress and liver injury. Keywords: Mitochondria, Cholesterol, Liver, Hepatic diseases, Respiration, Oxidative stress
    Keywords Medicine (General) ; R5-920 ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2019-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Polycystic ovary syndrome with feasible equivalence to overweight as a risk factor for non-alcoholic fatty liver disease development and severity in Mexican population

    Nicolás Salva-Pastor / Guillermo Nahúm López-Sánchez / Norberto Carlos Chávez-Tapia / Jorge Román Audifred-Salomón / Danniela Niebla-Cárdenas / Rafael Topete-Estrada / Helga Pereznuñez-Zamora / Rafael Vidaltamayo-Ramírez / Margarita Elodia Báez-Arellano / Misael Uribe / Natalia Nuño-Lámbarri

    Annals of Hepatology, Vol 19, Iss 3, Pp 251-

    2020  Volume 257

    Abstract: Introduction and objectives: Polycystic ovary syndrome (PCOS) is the most common endocrinology disorder in women of reproductive age; these patients have a higher risk of suffering from non-alcoholic fatty liver disease (NAFLD). We determine the ... ...

    Abstract Introduction and objectives: Polycystic ovary syndrome (PCOS) is the most common endocrinology disorder in women of reproductive age; these patients have a higher risk of suffering from non-alcoholic fatty liver disease (NAFLD). We determine the frequency of NAFLD in Mexican patients with PCOS and matched-controls. Patients and methods: Cross-sectional study, with 98 women of 18–44 years old. Rotterdam 2003 criteria integrated PCOS diagnosis. Those with significant alcohol consumption, chronic liver disease, use of steatogenic drugs, and pharmacological PCOS treatment or fertility protocol were excluded. Controls were matched in a 1:1 ratio by age and body mass index (BMI). The presence of NAFLD was determined by transient elastography performed by a single experienced operator. Results: A total of 98 female volunteers at reproductive age were recruited. NAFLD denoted markedly higher in patients with than without PCOS at 69.3% vs. 34.6%, respectively. Compared to controls, PCOS patients had a significantly higher risk of NAFLD (OR = 4.26, 95% CI 1.83–9.93). Severe steatosis was the most frequent NAFLD stage between women with PCOS and NAFLD. Patients with hyperandrogenism have a significantly higher mean CAP 277.83 dB/m than controls without hyperandrogenism 191.57 dB/m. NAFLD prevalence was 84.3% in PCOS patients with phenotype A, while in another phenotype, it was 41.1%. Conclusions: PCOS is an independent risk factor for NAFLD development. NAFLD screening needs to be considered in all PCOS patients independently of BMI, except in PCOS patients without hyperandrogenism and BMI < 25.
    Keywords Liver steatosis ; PCOS phenotype ; Hyperandrogenism ; NAFLD screening ; Specialties of internal medicine ; RC581-951
    Subject code 610
    Language English
    Publishing date 2020-05-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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