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Licorice (Glycyrrhiza spp.) has been a cornerstone of traditional Chinese and Japanese medicine. This systematic review and meta-analysis aimed to evaluate the efficacy of licorice formulations, alone or in combination with other herbs, on liver function enzymes in patients with primary liver disease. We systematically searched MEDLINE, Embase, Scopus, Web of Science, and Cochrane Library up to April 2024. Randomized controlled trials (RCTs) comparing the effects of Glycyrrhiza spp. preparations versus placebo or standard of care controls were included. Standard Cochrane methods were used to extract data and appraise eligible studies. A total of 15 RCTs, involving 1367 participants, were included in the analysis. The studies varied widely in geographical location, duration, and licorice preparations used. Licorice significantly reduced alanine aminotransferase (ALT) by 15.63 U/L (95% CI: -25.08, -6.18; p = 0.001) and aspartate aminotransferase (AST) by 7.37 U/L (95% CI: -13.13, -1.61; p = 0.01) compared to control groups. Subgroup analyses revealed that purified glycyrrhizic acid compounds were particularly effective, showing greater reductions in ALT and AST without significant heterogeneity. Although licorice treatment did not significantly impact gamma-glutamyl transferase and total bilirubin (TBIL) levels overall, specific licorice-herb preparations did show a notable reduction in TBIL. The safety profile of licorice was consistent with known side effects, predominantly mild and related to its mineralocorticoid effects. Despite heterogeneity and potential language bias, the findings suggest that licorice can enhance liver function. Further studies should standardize licorice preparations and explore its role in multifaceted herbal formulations to better understand its hepatoprotective mechanisms.
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BACKGROUND: Obesity and its associated health complications have become a global public health concern, necessitating innovative approaches to weight management. One emerging area of research focuses on the influence of chronotype, an individual's preferred timing for daily activities, on eating habits, weight regulation, and metabolic health. Recent observational studies suggest that the misalignment between an individual's chronotype and external cues, such as meal timing, may contribute to metabolic dysregulation and obesity, but evidence from intervention studies is still limited. This study protocol describes a randomized controlled trial designed to explore the effects of a chronotype-adapted diet, compared with a diet with a conventional calorie distribution, on weight loss, cardiometabolic health, and gut microbiota composition. METHODS: A total of 150 overweight/obese adults will be recruited for this 4-month parallel-group, randomized, two-arm, open-label, superiority trial with 1:1 allocation ratio. Participants will be randomly assigned to either the intervention group or the control group. The intervention group will receive a low-calorie chronotype-adapted diet with a calorie distribution adapted to the individual chronotype (morning or evening), optimizing meal timing according to their peak metabolic periods. The control group will follow a standardized low-calorie healthy eating plan without considering chronotype. Both diets will have equivalent daily calorie content, adjusted according to gender and starting weight. Anthropometric measurements, body composition, blood, and fecal samples will be obtained from each participant at the beginning and the end of the study. The primary outcome is weight change from baseline. Secondary outcomes are changes from baseline in body mass index (BMI), fat mass, lipid and glycemic profile, fecal microbiota profile, and short-chain fatty acids (SCFAs). DISCUSSION: The results of this randomized controlled trial have the potential to advance our understanding of the complex interactions between chronotype, diet, body weight, and health outcomes. By providing evidence for personalized dietary interventions based on individuals' circadian preferences, this research could offer insights into personalized nutrition strategies. Such knowledge could guide the development of innovative dietary interventions to optimize the prevention and management of overweight and obesity, while also improving the risk profile of these individuals. TRIAL REGISTRATION: ClinicalTrials.gov NCT05941871. Registered on 18 May 2023.
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Doenças Cardiovasculares , Microbioma Gastrointestinal , Adulto , Humanos , Sobrepeso/diagnóstico , Sobrepeso/terapia , Cronotipo , Obesidade/diagnóstico , Obesidade/terapia , Obesidade/complicações , Dieta , Redução de Peso , Doenças Cardiovasculares/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
Despite the many well-documented benefits of the Mediterranean diet (MD), many Mediterranean countries seem to be moving away from it. The aim of this study was to investigate the MD adherence in 10,916 adults who completed the validated Medi-Lite questionnaire from January 2019 to December 2022 in Italy, and to assess the consumption of its food groups by comparing them with current national dietary guidelines. The sample showed a good level of MD adherence (12 ± 2.5). However, from 2019 to 2022, a significant (p < 0.001) decline in the adherence level emerged. An overconsumption of fresh red meat, cheese and poultry compared to dietary guidelines was observed. In contrast, an under-consumption of vegetables, bread, legumes, fish and milk and dairy products emerged. In recent years, a decline in MD adherence was observed in Italy, probably determined by an excessive consumption of animal products.
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Dieta Mediterrânea , Política Nutricional , Humanos , Itália , Adulto , Feminino , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Idoso , Cooperação do Paciente/estatística & dados numéricos , Adulto Jovem , Laticínios , Verduras , Comportamento AlimentarRESUMO
Introduction: Introduction: scientific evidence on the appropriate nutritional support in the treatment of post-operative head and neck cancer (HNC) patients is still limited. Objectives: our aim was to evaluate nutritional status and quality of life in HNC patients in post-operative phase with different nutritional support. Methods: fifty-four HNC patients (26 with enteral nutrition [EN] via percutaneous endoscopic gastrostomy [PEG] and 28 with oral nutrition [ON]) were included. Nutritional status was evaluated with biochemical parameters and quality of life through the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30). Results: ON patients reported significantly (p < 0.05) lower levels of hemoglobin, lymphocytes, iron, folic acid, and vitamin D than EN patients, with greater percentage of ON patients found to be below the reference limits for hemoglobin (21.4 % vs 19.4 %), and significantly for serum iron (17.9 % vs 0 %) and vitamin D (78.6 % vs 30.8 %). Furthermore, EN patients had a better quality of life (63.8 ± 17.6) than ON (55.4 ± 20.3), although ON patients reported less symptoms related to dyspnea (-5.8 %), loss of appetite (-11.3 %) and vomiting (-23.1 %). Conclusions: these results suggest that the use of EN in post-operative HNC patients could have a positive effect on the nutritional status and quality of life of these patients. However, further research is needed to optimize the nutritional support in these patients in order to avoid malnutrition and improve their well-being.
Introducción: Introducción: la evidencia científica sobre el soporte nutricional más apropiado en pacientes con cáncer de cabeza y cuello (CCC) en el periodo postoperatorio es aún limitada. Objetivos: el objetivo de este estudio fue evaluar el estado nutricional y la calidad de vida en pacientes con CCC en el periodo postoperatorio. Métodos: se incluyeron 54 pacientes con CCC (26 con nutrición enteral [NE] mediante gastrostomía endoscópica percutánea [PEG] y 28 con nutrición oral NO]). El estado nutricional se evaluó mediante parámetros bioquímicos y la calidad de la vida, con el cuestionario European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30). Resultados: los pacientes con NO reportaron valores significativamente (p < 0,05) menores de hemoglobina, linfocitos, hierro sérico, ácido fólico y vitamina D respecto a los pacientes con NE, con un mayor porcentaje de pacientes con NO por debajo de los límites de referencia de hemoglobina (21,4 % vs. 19,4 %) y significativamente de hierro sérico (17,9 % vs. 0 %) y vitamina D (78,6 % vs. 30,8 %). Además, los pacientes con NE reportaron una mejor calidad de vida (63,8 ± 17,6) respecto los pacientes con NO (55,4 ± 20,3), aunque los pacientes con NO refirieron menos síntomas cómo disnea (-5,8 %), pérdida de apetito (-11,3 %) y vómitos (-23,1 %). Conclusión: estos resultados sugieren que el uso de NE en pacientes con HNC tras cirugía podría tener un efecto positivo sobre su estado nutricional y su calidad de vida. Sin embargo, es necesario seguir investigando para optimizar el soporte nutricional en estos pacientes a fin de evitar la desnutrición y mejorar su bienestar.
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Evidence on the consumption of ultra-processed foods (UPF) in adults with celiac disease (CD) and its impact on Mediterranean Diet (MD) adherence is still limited. Our aim was to determine UPF consumption and its relationship with MD adherence in a group of adults, according to the presence of CD. This case-control study included 103 adults with CD and 312 without CD. UPF intake was assessed using the NOVA Food Frequency Questionnaire (NFFQ), while MD adherence was assessed using the Medi-Lite score. UPF represented 14.5% of the diet of participants with CD (246 g/day) and came mainly from cereals-based products (29%) and sweets (24.2%). UPF consumption did not differ with the presence of CD, but participants with CD had significantly (p < 0.05) higher consumption of precooked pasta and pre-packaged breads. Participants with CD also reported a significantly lower MD adherence than participants without CD (9.4 vs. 10.4), with higher intake of meat and dairy products, and lower consumption of vegetables and fish. An inverse trend was found between UPF consumption and MD adherence in adults with CD, although not statistically significant. These findings highlight the importance of improving nutrition education for subjects with CD, which should not only focus on gluten exclusion.
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Doença Celíaca , Dieta Mediterrânea , Humanos , Alimento Processado , Estudos de Casos e Controles , Fast Foods , Manipulação de Alimentos , DietaRESUMO
BACKGROUND AND AIMS: A growing body of evidence has associated subjects with an evening chronotype with worse eating behaviours and poorer diet quality. However, only few studies have investigated the relationship between chronotype and Mediterranean diet (MD). The aim of this study was to better understand the chronotype influence on dietary habits and MD adherence in a large sample of Italian adults. METHODS AND RESULTS: A total of 1247 participants (66.7% women) with a mean age of 36.1 ± 14.6 years were included in the analysis. Chronotype was classified as morning in 35.6% of subjects, intermediate in 56.7%, and evening in 7.1%. Regarding meal frequency, evening subjects showed a significantly (p < 0.05) greater tendency to skip breakfast (20.5%) than morning (6.9%) and intermediate (12%) subjects. Similarly, evening subjects were found to skip mid-morning snack more often than morning subjects (59.1% vs. 47.1%; p = 0.04), and lunch more often than intermediate subjects (8% vs. 2.8%; p = 0.01). In addition, all meals were eaten by evening subjects at a significantly delayed time, except for lunch. As to MD adherence a significant (p < 0.001) higher adherence in morning subjects (10.1 ± 2.2) compared to intermediate (9.5 ± 2.1) and evening (9.5 ± 2.2) subjects was observed. At a logistic regression analysis adjusted for possible confounding factors, morning subjects showed an increased probability (OR 1.54, 95%CI 1.19-1.99; p < 0.001) of being in the highest MD adherence tertile. CONCLUSION: Chronotype was associated with MD adherence. In particular, morning subjects showed higher MD adherence than intermediate and evening subjects.
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Ritmo Circadiano , Dieta Mediterrânea , Adulto , Desjejum , Comportamento Alimentar , Feminino , Humanos , Masculino , Refeições , Pessoa de Meia-Idade , Sono , Inquéritos e Questionários , Adulto JovemRESUMO
The aims of this study were to assess the Mediterranean Diet (MD) adherence in 2566 Italians who completed the validated Medi-Lite questionnaire during the year 2020, and to investigate the effect of COVID-19 confinement on dietary habits and MD adherence. To do this, we compared subjects (n = 389) that answered the questionnaire during the confinement occurred in Italy from March to May 2020 with subjects (n = 653) who completed the questionnaire in the same period (March-May) of the previous year (2019). From the results, a moderate level of MD adherence in the total sample emerged, and a significantly (p<.0001) increased adherence during lockdown was observed. Specifically, during confinement significantly (p < 0.05) higher consumption of vegetables (+9.4%), legumes (+13.5%) and pasta (+12.9%) emerged, while lower consumption was reported for bread (-13.4%) and meat and meat products (-15.4%). This study showed increased adherence to MD and a better-quality diet during the COVID-19 confinement in Italy.
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COVID-19 , Dieta Mediterrânea , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Comportamento Alimentar , Humanos , Internet , Itália/epidemiologia , Inquéritos e Questionários , VerdurasRESUMO
We recently developed and validated a questionnaire to measure adherence to the Mediterranean diet, called Medi-Lite. The aim of this study was to assess the accuracy of the Medi-Lite adherence score in relation to obesity status. A total of 208 patients who attended the Clinical Nutrition Unit of Careggi University Hospital, Florence, were included in this retrospective analysis. Of them, 126 (45%) had abdominal obesity (110 F; 16 M). The mean adherence score, calculated through the Medi-Lite questionnaire, was 9.5 ± 2.2, with significantly (p < 0.001) lower values in patients with abdominal obesity (8.9 ± 1.9) than those without abdominal obesity (10 ± 2.2). Logistic regression analysis adjusted for age and sex showed that the Medi-Lite score determined significant protection (-28%) against the risk of abdominal obesity for every one-unit increase in the total score (OR 0.72, 95% CI 0.63-0.82; p < 0.001). Looking for cut-off values that denote increased risk of having abdominal obesity, we observed that patients who scored ≤9 had a significantly increased risk (OR 3.21, 95% CI 1.91-5.39; p < 0.001). Adherence to the Mediterranean diet assessed through the Medi-Lite score was found to be associated with abdominal obesity. In particular, patients who reported a score of ≤9 had a 3.5-fold times higher risk of having abdominal obesity than those who scored >9.
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Dieta Mediterrânea , Obesidade/epidemiologia , Cooperação do Paciente , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Composição Corporal , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Adulto JovemRESUMO
BACKGROUND: The aim of the present study was to assess the effects of a lacto-ovo-vegetarian diet (VD), compared to a Mediterranean diet (MD), on kidney function in a group of subjects with medium-to-low cardiovascular risk profile. METHODS: We analysed 107 subjects (82 women, 25 men; median age 52) who followed a VD (n = 54) and a MD (n = 53) for 3 months in the CARDIVEG study, a randomized, open, crossover trial that compared the effects of these 2 diets on cardiovascular disease risk. RESULTS: The effect of the two diets on kidney function markers was evaluated by conducting a general linear model for repeated measurements adjusted for possible confounding factors such as age, sex, physical activity, alcohol, smoking, hypertension, LDL cholesterol, glucose and body weight change. A significant reduction in creatinine (-5.3%; P < .001), urea nitrogen levels (-9%; P = .001), blood urea nitrogen (BUN) (-8.7%; P = .001) and BUN/creatinine ratio (-5.8%; P < .001), and an increase in estimated glomerular filtration rate (eGFR) (+3.5%; P = .001) was observed during the VD period. On the contrary, no significant changes were noted in the MD group. Variations obtained in the two dietary interventions were significantly different (P < .0001) for creatinine levels, BUN/creatinine and eGFR, for which opposite trends were observed in the VD and MD groups. CONCLUSIONS: In a selected group of subjects with medium-to-low cardiovascular risk profile, a 3 month VD period determined significant improvements in kidney function markers. Further trials are needed to confirm these results.
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Nitrogênio da Ureia Sanguínea , Doenças Cardiovasculares/prevenção & controle , Creatinina/sangue , Dieta Mediterrânea , Dieta Vegetariana , Taxa de Filtração Glomerular , Adulto , Idoso , Estudos Cross-Over , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Testes de Função Renal , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Comportamento de Redução do Risco , Ácido Úrico/sangue , Adulto JovemRESUMO
The aim of this study was to compare the effect of consumption of ancient grain "Verna" bread obtained by two different leavening agents, sourdough (SD) and baker's yeast (BY), on inflammatory parameters and cardiometabolic risk factors. Seventeen clinically healthy subjects were included to consume SD or BY bread for 4 weeks each, and blood analyses were carried out. The consumption of "Verna" bread obtained with both leavening agents led to a significant improvement of LDL cholesterol. A reduction of -10.6% and -8.53% was observed after replacement with SD and BY bread, respectively. A significant increase in fasting blood glucose (+6%) was observed only after the intervention with BY bread. A 10.7% decrease of vascular endothelial growth factor was found after the SD bread replacement period. The consumption of "Verna" bread resulted significantly associated with an improvement in the cardiometabolic and inflammatory profile. However, only consumption of BY bread determined a significant increase in blood glucose levels.
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Pão/análise , Dieta , Grão Comestível , Saccharomyces cerevisiae , Adolescente , Adulto , Idoso , Análise Química do Sangue , Pão/microbiologia , Colesterol , Estudos Cross-Over , Método Duplo-Cego , Feminino , Fermentação , Manipulação de Alimentos/métodos , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Fator A de Crescimento do Endotélio Vascular/análise , Adulto JovemRESUMO
The adherence to the Mediterranean diet (MD) was assessed in a sample of 1820 non-selected individuals (1099 females and 721 males aged ≥18 years) who have completed the web version of the Medi-Lite score during the year 2019. Adherence to the MD was found to have a normal distribution and, on a scale from 0 to 18, the mean score was 12.2 ± 2.4. Significantly (p < 0.001) higher adherence scores were observed in females compared to males, in elderly people compared to young people, and in individuals with a university degree compared to those with a primary or a secondary school diploma. At the multivariate analysis, female gender, advanced age (>45 years), and higher education level were associated with a higher probability of being in the highest quartile of the Medi-Lite distribution. In conclusion, we found that some sub-groups of our population (males, younger individuals, and those with lower levels of education) need to improve their diet for reaching higher adherence scores to the MD.
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Dieta Mediterrânea , Cooperação do Paciente/estatística & dados numéricos , Adolescente , Adulto , Distribuição por Idade , Escolaridade , Feminino , Humanos , Internet , Itália , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto JovemRESUMO
Fibromyalgia (FM) is a multifactorial syndrome of unknown etiology, characterized by widespread chronic pain and various somatic and psychological manifestations. The management of FM requires a multidisciplinary approach combining both pharmacological and nonpharmacological strategies. Among nonpharmacological strategies, growing evidence suggests a potential beneficial role for nutrition. This review summarizes the possible relationship between FM and nutrition, exploring the available evidence on the effect of dietary supplements and dietary interventions in these patients. Analysis of the literature has shown that the role of dietary supplements remains controversial, although clinical trials with vitamin D, magnesium, iron and probiotics' supplementation show promising results. With regard to dietary interventions, the administration of olive oil, the replacement diet with ancient grains, low-calorie diets, the low FODMAPs diet, the gluten-free diet, the monosodium glutamate and aspartame-free diet, vegetarian diets as well as the Mediterranean diet all appear to be effective in reducing the FM symptoms. These results may suggest that weight loss, together with the psychosomatic component of the disease, should be taken into account. Therefore, although dietary aspects appear to be a promising complementary approach to the treatment of FM, further research is needed to provide the most effective strategies for the management of FM.
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Fibromialgia/dietoterapia , Terapia Nutricional/métodos , Fenômenos Fisiológicos da Nutrição/fisiologia , Acetilcarnitina/administração & dosagem , Ácido Ascórbico/administração & dosagem , Chlorella , Dieta Vegana , Suplementos Nutricionais , Síndrome , Ubiquinona/administração & dosagem , Ubiquinona/análogos & derivados , Vitamina E/administração & dosagemRESUMO
OBJECTIVE: KAMUT khorasan is an ancient grain with widely acclaimed health benefits. The aim of this study was to investigate the effects of a replacement diet with ancient khorasan wheat products in patients with NAFLD, in comparison to a similar replacement diet with control products made from organic semi-whole-grain modern wheat. METHODS: Forty NAFLD patients (12 M/28 F; age 55.2 ± 10.4 years) with mild to moderate liver steatosis were included. The experimental design was a randomized, double-blind, parallel-arm study with 20 participants assigned to consume either KAMUT khorasan or control wheat products (pasta, bread, crackers, biscuits) over a 3-month period. Anthropometric measurements, blood analyses, and ultrasonography examination were performed at both the beginning and end of each dietary intervention. RESULTS: After the implementation of a general linear model for repeated measurements adjusted for baseline demographic details, risk factors, and medication, alanine aminotransferase (ALT) was significantly reduced by 12%, aspartate aminotransferase (AST) by 14%, alkaline phosphatase (ALP) by 8%, and cholesterol by 6% only in the khorasan group (p < 0.05 for all). Similarly, significant reductions in circulating proinflammatory tumor necrosis factor-alpha by 50%, interleukin l-receptor antagonist-alpha by 37%, interleukin-8 by 24%, and interferon gamma by 24% were evident only in participants who consumed the khorasan products (p < 0.05 for all). Finally, significant improvements in the liver steatosis grading, Doppler perfusion index values, and reactive oxygen species (ROS) production were evident after consumption of both the khorasan and control products. CONCLUSIONS: This study suggests that a short-term replacement diet with ancient KAMUT khorasan products is most effective in reducing metabolic risk factors and ameliorating the liver profile in patients with NAFLD.
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Pão , Dieta , Hepatopatia Gordurosa não Alcoólica/dietoterapia , Triticum/classificação , Idoso , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Colesterol/sangue , Método Duplo-Cego , Grão Comestível , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/efeitos dos fármacos , Fatores de RiscoRESUMO
OBJECTIVE: The aim of this study was to compare the recurrence rate after high ties performed with or without sparing of the saphenofemoral junction tributaries. METHODS: There were 867 lower limbs enrolled. All patients underwent a high tie with (group A) or without (group B) ligation of all the junctional tributaries for a great saphenous vein reflux (C2-5EpAsPr). A duplex ultrasound examination detected recurrences. RESULTS: Median follow-up was 5 years (interquartile range, 3-8 years). Group A had a higher recurrence rate than group B (odds ratio, 7.52; P < .001). Group A recurrences (7.4%), compared with group B (1.1%), presented with a more frequent direct stump reconnection (3.7% vs 0.2%; P < .001) or newly developed pelvic shunts (3% vs 0.5%; P < .001). No significant difference was reported between the two groups in newly incompetent perforating veins. CONCLUSIONS: Ligation of the junctional tributaries is associated with a higher recurrence risk. Further investigations are needed to determine the hemodynamic role of each single junctional tributary.
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Veia Femoral/cirurgia , Veia Safena/cirurgia , Varizes/cirurgia , Insuficiência Venosa/cirurgia , Idoso , Feminino , Veia Femoral/diagnóstico por imagem , Veia Femoral/fisiopatologia , Hemodinâmica , Humanos , Ligadura , Masculino , Pessoa de Meia-Idade , Recidiva , Fluxo Sanguíneo Regional , Estudos Retrospectivos , Fatores de Risco , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/fisiopatologiaRESUMO
BACKGROUND AND AIMS: Non-alcoholic fatty liver disease (NAFLD) is a worldwide diffuse condition due to alimentary, environment and genetic factors. The aim of our preliminary study was to evaluate the effectiveness of long-term consumption of food enriched with n-3 polyunsaturated fatty acids (PUFA) in patients with NAFLD. METHODS: Eleven patients were enrolled; six (four males, two females) were planned for oral administration of 6.5 ml olive oil enriched with n-3 PUFA for 12 months, while five (four males, one female) were used as controls. RESULTS: Consumption of olive oil enriched with n-3 PUFA demonstrated a significant improvement of liver echo-texture and of the Doppler Perfusion Index after 12 months (after: 0.19 ± 0.02 vs. pre: 0.15 ± 0.03; P < 0.05), whereas no significant changes were seen at the end of follow-up in controls. Moreover, patients who consumed the olive oil enriched with n-3 PUFA showed a significant amelioration of liver enzymes, and of triglycerides (post: 132.8 ± 63.7 vs. pre: 164.5 ± 85.5 mg/dl; P = 0.04) in a general linear model adjusted for age and gender. Interestingly, patients reported to have a significant increase of adiponectin levels (post: 1,487.9 ± 96.7 vs. pre: 1,143 ± 24.8 µg/ml; P = 0.04). CONCLUSION: The results of this preliminary study showed that long-term consumption of olive oil enriched with n-3 PUFA in patients with NAFLD is able to decrease circulating liver enzymes and triglycerides, with a significant improvement of adiponectin levels.