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1.
J Visc Surg ; 160(6): 427-443, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37783613

ABSTRACT

The morbidity and mortality of pancreatic cancer surgery has seen substantial improvement due to the standardization of surgical techniques, the optimization of perioperative multidisciplinary management and the organization of specialized care systems. The identification and treatment of postoperative functional and nutritional sequelae have thereby become major issues in patients who undergo pancreatic surgery. This review addresses the functional sequelae of pancreatic resection for cancerous and pre-cancerous lesions (excluding chronic pancreatitis). Its aim is to specify the prevalence and severity of sequelae according to the type of pancreatic resection and to document, where appropriate, the therapeutic management. Exocrine pancreatic insufficiency (ExPI) is observed in nearly one out of three patients at one year after surgery, and endocrine pancreatic insufficiency (EnPI) is present in one out of five patients after pancreatoduodenectomy (PD) and one out of three patients after distal pancreatectomy (DP). In addition, digestive functional disorders may appear, such as delayed gastric emptying (DGE), which affects 10 to 45% of patients after PD and nearly 8% after DP. Beyond these functional sequelae, pancreatic surgery can also induce nutritional and vitamin deficiencies secondary to a lack of uptake for certain vitamins or to the loss of absorption site in the duodenum. In addition to the treatment of ExPI with oral pancreatic enzymes, nutritional management is based on a high-calorie, high-protein diet with normal lipid intake in frequent small feedings, combined with vitamin supplementation adapted to monitored deficiencies. Better knowledge of the functional consequences of pancreatic cancer surgery can improve the overall management of patients.


Subject(s)
Exocrine Pancreatic Insufficiency , Pancreatic Neoplasms , Humans , Pancreatectomy/adverse effects , Pancreatectomy/methods , Pancreas/surgery , Pancreaticoduodenectomy/adverse effects , Pancreaticoduodenectomy/methods , Pancreatic Neoplasms/surgery , Exocrine Pancreatic Insufficiency/epidemiology , Exocrine Pancreatic Insufficiency/etiology , Exocrine Pancreatic Insufficiency/therapy , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/therapy , Pancreatic Neoplasms
2.
Dig Liver Dis ; 55(7): 926-932, 2023 07.
Article in English | MEDLINE | ID: mdl-36849286

ABSTRACT

BACKGROUND AND AIMS: This work aimed to evaluate the impact of sarcopenia and sarcopenic obesity on the occurrence of severe pancreatitis and to study the performance of anthropometric indices to predict severe forms. METHODS: We conducted a single-center retrospective study at Caen University Hospital between 2014 and 2017. Sarcopenia was assessed by measuring the psoas area on an abdominal scan. The psoas area /body mass index ratio reflected sarcopenic obesity. By normalizing the value to the body surface, we obtained an index called sarcopancreatic index, avoiding sex differences in measurements. RESULTS: Among 467 included patients, 65 (13.9%) developed severe pancreatitis. The sarcopancreatic index was independently associated with the occurrence of severe pancreatitis (1.455 95% CI [1.028-2.061]; p = 0.035), as was the Visual Analog Scale, creatinine or albumin. The complication rate was not different depending on sarcopancreatic index value. Based on variables independently associated with the occurrence of severe pancreatitis, we constructed a score called Sarcopenia Severity Index. This score presented an area under the receiver operating characteristics curve of 0.84, comparable to the Ranson score (0.87) and superior to body mass index or the sarcopancreatic index to predict a severe form of acute pancreatitis. CONCLUSIONS: Sarcopenic obesity seems to be associated with severe acute pancreatitis.


Subject(s)
Pancreatitis , Sarcopenia , Humans , Male , Female , Pancreatitis/complications , Sarcopenia/complications , Sarcopenia/diagnosis , Retrospective Studies , Acute Disease , Obesity/complications , Prognosis
3.
Health Equity ; 6(1): 819-835, 2022.
Article in English | MEDLINE | ID: mdl-36338799

ABSTRACT

Background: Due to its prevalence, gallstone disease is a major public health issue. It affects diverse patient populations across various socioeconomic levels. Socioeconomic and geographic deprivation may impact both morbidity and mortality associated with digestive diseases, such as biliary tract disease. Aim: The aim of this systematic review was to review the available data on the impact of socioeconomic determinants and geographic factors on gallstone disease and its complications. Methods: This systematic review was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The MEDLINE and Web of Science databases were searched by two investigators to retrieve studies about the impact of income, insurance status, hospital status, education level, living areas, and deprivation indices on gallstone disease. Thirty-seven studies were selected for this review. Results: Socially disadvantaged populations appear to be more frequently affected by complicated or severe forms of gallstone disease. The prognosis of biliary tract disease is poor in these populations regardless of patient status, and increased morbidity and mortality were observed for acute cholangitis or subsequent cholecystectomy. Limited or delayed access and low-quality therapeutic interventions could be among the potential causes for this poor prognosis. Conclusions: This systematic review suggests that socioeconomic determinants impact the management of gallstone disease. Enhanced knowledge of these parameters could contribute to improved public health policies to manage these diseases.

4.
Obes Surg ; 32(7): 2321-2331, 2022 07.
Article in English | MEDLINE | ID: mdl-35524022

ABSTRACT

PURPOSE: Craniopharyngiomas are tumors located in the hypothalamic region which leads to obesity in about 50% of cases. Long-term efficacy and safety of bariatric surgery are lacking in this peculiar population. The aim of this study is to determine the 5-year weight loss and resolution of type 2 diabetes (T2D) after bariatric surgery in patients operated on craniopharyngioma who had developed hypothalamic obesity. MATERIALS AND METHODS: This is a multicenter french retrospective case-control study. Subjects with craniopharyngioma (n = 23) who underwent sleeve gastrectomy (SG) (n = 9) or Roux-en-Y gastric bypass (RYGB) (n = 14) (median age 35 years [25;43] and BMI 44.2 kg/m2 [40.7; 51.0]; 8/23 with T2D) were individually matched to 2 subjects with common obesity for age, gender, preoperative body mass index, T2D, and type of surgery. RESULTS: TWL% after 1 and 5 years was lower in the craniopharyngioma group than in the control group: 23.1 [15.4; 31.1] (23/23) vs 31.4 [23.9; 35.3] at 1 year (p = 0.008) (46/46) and 17.8 [7.1; 21.9] (23/23) vs 26.2 [18.9; 33.9] at 5 years (p = 0.003) (46/46). After RYGB, TWL% was lower in the craniopharyngioma group compared to the control group (p < 0.001) and comparable after SG both at 1 and 5 years. No difference between the two groups was observed in T2D remission rate and in early and late adverse events. No hormonal deficiency-related acute disease was reported. CONCLUSIONS: Bariatric surgery induced a significant weight loss in the craniopharyngioma group at 1 and 5 years, but less than in common obesity. SG may be more effective than RYGB but this remains to be demonstrated in a larger cohort.


Subject(s)
Bariatric Surgery , Craniopharyngioma , Diabetes Mellitus, Type 2 , Gastric Bypass , Obesity, Morbid , Pituitary Neoplasms , Adult , Case-Control Studies , Craniopharyngioma/complications , Craniopharyngioma/surgery , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/surgery , Gastrectomy , Humans , Obesity/complications , Obesity/surgery , Obesity, Morbid/surgery , Pituitary Neoplasms/complications , Pituitary Neoplasms/surgery , Retrospective Studies , Weight Loss
5.
Pancreas ; 51(2): 128-134, 2022 02 01.
Article in English | MEDLINE | ID: mdl-35404887

ABSTRACT

OBJECTIVES: The identification of patients at risk of developing a severe form of acute pancreatitis is a major issue. The goal of this study was to identify parameters at admission associated with severe pancreatitis to develop a predictive severity score. METHODS: We conducted a retrospective study at Caen University Hospital between January 2014 and December 2017, including 504 patients hospitalized for acute pancreatitis, of whom 74 had a severe form. We developed a predictive score named Admission Severe Acute Pancreatitis (ASAP) score based on parameters associated with a severe form in multivariate analysis. We validated our score in an independent validation cohort of 80 patients. RESULTS: Hypothermia, low oxygen saturation or albumin levels, and high creatinine levels were significantly associated with severe pancreatitis. The ASAP score showed notable predictive accuracy (area under receiver operating characteristic, 0.82), which was significantly higher than Sequential Organ Failure Assessment, persistent Systemic Inflammatory Response Syndrome, and Balthazar. Using the -2.1742 threshold, the ASAP score had a sensitivity and specificity of 74% and a negative predictive value of 95%. These predictive performances for ASAP score were confirmed in the validation cohort. CONCLUSIONS: The ASAP score demonstrates remarkable predictive accuracy in distinguishing severe forms of acute pancreatitis.


Subject(s)
Pancreatitis , Acute Disease , Humans , Pancreatitis/complications , Pancreatitis/diagnosis , Predictive Value of Tests , Prognosis , ROC Curve , Retrospective Studies , Severity of Illness Index
8.
Obes Surg ; 29(9): 2843-2853, 2019 09.
Article in English | MEDLINE | ID: mdl-31183785

ABSTRACT

BACKGROUND: The aim of this study was to investigate whether the implementation of enhanced recovery after surgery (ERAS) guidelines according to Thorell and co. in our tertiary referral bariatric center might improve post-operative outcomes. METHODS: ERAS program was introduced in our center since January 1, 2017. Retrospective review of a prospectively collected database identified patients who underwent laparoscopic primary and revisional bariatric surgeries from October 2005 to January 2018. Patients exposed to ERAS program ("ERAS group") were matched in a 1:1 ratio with patients exposed to conventional care (control group) using a propensity score based on age, gender, preoperative body mass index (BMI), diabetes mellitus, and the type of procedures. The primary outcome was total hospital length of stay (LOS) and the secondary outcomes included the post-operative complications and readmission rates. RESULTS: During the study period, 464 patients were included, 232 in each group. Implementation of the ERAS protocol was significantly associated with a reduction of LOS (2.47 ± 1.7 vs 5.39 ± 1.9 days, p < 0.00001). One-third of patients was discharged (77/232, 33%) on the first postoperative day (POD) and more than three quarter of patients on POD 2 (182/232, 77%). At the opposite, no patients of the control group were discharged on POD 2. Overall 30-day and 90-day morbidity and readmission rates were the same in both groups. There was no death in each group. CONCLUSIONS: This large case-matched study using a propensity score analysis suggests that implementation of ERAS program significantly reduced length of hospital stay without significant increases on overall morbidity, and readmission rates.


Subject(s)
Bariatric Surgery , Enhanced Recovery After Surgery , Length of Stay/statistics & numerical data , Postoperative Complications/epidemiology , Bariatric Surgery/adverse effects , Bariatric Surgery/statistics & numerical data , Humans , Obesity, Morbid/surgery , Propensity Score , Retrospective Studies , Treatment Outcome
9.
Nephrol Ther ; 12(4): 198-205, 2016 Jul.
Article in French | MEDLINE | ID: mdl-27320370

ABSTRACT

Protein energy wasting is a major complication in peritoneal dialysis. It is leading to a poor quality of life and increasing mortality. Diagnosis must be early, according to criteria defined by the International society of renal nutrition and metabolism. It is necessary to appropriate the diagnostic tools with dialysis method. The nutritional care is difficult in peritoneal dialysis. Indeed, studies are limited and practical nutrition is complex. In this point of view, we propose to treat guidelines for protein energy wasting, in peritoneal dialysis patients.


Subject(s)
Peritoneal Dialysis , Protein-Energy Malnutrition/therapy , Decision Trees , Humans , Nutrition Assessment , Nutritional Support
11.
Gastroenterology ; 150(4): 903-10.e8, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26764182

ABSTRACT

BACKGROUND & AIMS: Severe alcoholic hepatitis (AH) is a life-threatening disease for which adequate oral nutritional support is recommended. We performed a randomized controlled trial to determine whether the combination of corticosteroid and intensive enteral nutrition therapy is more effective than corticosteroid therapy alone in patients with severe AH. METHODS: We enrolled 136 heavy consumers of alcohol (age, 18-75 y) with recent onset of jaundice and biopsy-proven severe AH in our study, performed at 18 hospitals in Belgium and 2 in France, from February 2010 through February 2013. Subjects were assigned randomly (1:1) to groups that received either intensive enteral nutrition plus methylprednisolone or conventional nutrition plus methylprednisolone (controls). In the intensive enteral nutrition group, enteral nutrition was given via feeding tube for 14 days. The primary end point was patient survival for 6 months. RESULTS: In an intention-to-treat analysis, we found no significant difference between groups in 6-month cumulative mortality: 44.4% of patients died in the intensive enteral nutrition group (95% confidence interval [CI], 32.2%-55.9%) and 52.1% of controls died (95% CI, 39.4%-63.4%) (P = .406). The enteral feeding tube was withdrawn prematurely from 48.5% of patients, and serious adverse events considered to be related to enteral nutrition occurred in 5 patients. Regardless of group, a greater proportion of patients with a daily calorie intake less than 21.5 kcal/kg/day died (65.8%; 95% CI, 48.8-78.4) than patients with a higher intake of calories (33.1%; 95% CI, 23.1%-43.4%) (P < .001). CONCLUSIONS: In a randomized trial of patients with severe AH treated with corticosteroids, we found that intensive enteral nutrition was difficult to implement and did not increase survival. However, low daily energy intake was associated with greater mortality, so adequate nutritional intake should be a main goal for treatment. ClinicalTrials.gov number: NCT01801332.


Subject(s)
Adrenal Cortex Hormones/therapeutic use , Enteral Nutrition , Hepatitis, Alcoholic/therapy , Methylprednisolone/therapeutic use , Adolescent , Adrenal Cortex Hormones/adverse effects , Adult , Aged , Belgium , Biopsy , Combined Modality Therapy , Energy Intake , Enteral Nutrition/adverse effects , Enteral Nutrition/mortality , Female , France , Hepatitis, Alcoholic/diagnosis , Hepatitis, Alcoholic/mortality , Hepatitis, Alcoholic/physiopathology , Humans , Intention to Treat Analysis , Male , Methylprednisolone/adverse effects , Middle Aged , Nutrition Assessment , Nutritional Status , Risk Factors , Severity of Illness Index , Time Factors , Treatment Outcome , Young Adult
13.
Dig Liver Dis ; 47(8): 675-81, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25937626

ABSTRACT

BACKGROUND: The prognosis of cirrhotic patients in the Intensive Care Unit requires the development of predictive tools for mortality. We aimed to evaluate the ability of different prognostic scores to predict hospital mortality in these patients. METHODS: A single-centre retrospective analysis was conducted of 281 hospital stays of cirrhotic patients at an Intermediate Care Unit between June 2009 and December 2010. The performance of the Simplified Acute Physiology Score (SOFA), the Simplified Acute Physiology Score (SAPS) II or III, Child-Pugh, Model for End-Stage Liver Disease (MELD), MELD-Na and the Chronic Liver Failure-Consortium Acute-on-Chronic Liver Failure score (CLIF-C ACLF) in predicting hospital mortality were compared. RESULTS: Mean age was 58.2±12.1 years; 77% were male. The main cause of admission was acute gastrointestinal bleeding (47%). The in-hospital mortality rate was 25.3%. Receiver operating characteristic curve analyses demonstrated that SOFA (0.82) MELD-Na (0.82) or MELD (0.81) scores at admission predicted in-hospital mortality better than Child-Pugh (0.76), SAPS II (0.77), SAPS III (0.75) or CLIF-C ACLF (0.75). We then developed the cirrhosis prognostic score (Ci-Pro), which performed better (0.89) than SOFA. CONCLUSION: SOFA, MELD and especially the Ci-Pro score show the best performance in predicting hospital mortality of cirrhotic patients admitted to an Intermediate Care Unit.


Subject(s)
End Stage Liver Disease/mortality , Gastrointestinal Hemorrhage/mortality , Liver Cirrhosis/mortality , Severity of Illness Index , Aged , Bacterial Infections/microbiology , Bacterial Infections/mortality , Female , Hospital Mortality , Humans , Male , Middle Aged , Prognosis , ROC Curve , Retrospective Studies
14.
N Engl J Med ; 365(19): 1781-9, 2011 Nov 10.
Article in English | MEDLINE | ID: mdl-22070475

ABSTRACT

BACKGROUND: Mortality among patients with severe acute alcoholic hepatitis is high, even among those treated with glucocorticoids. We investigated whether combination therapy with glucocorticoids plus N-acetylcysteine would improve survival. METHODS: We randomly assigned 174 patients to receive prednisolone plus N-acetylcysteine (85 patients) or only prednisolone (89 patients). All patients received 4 weeks of prednisolone. The prednisolone-N-acetylcysteine group received intravenous N-acetylcysteine on day 1 (at a dose of 150, 50, and 100 mg per kilogram of body weight in 250, 500, and 1000 ml of 5% glucose solution over a period of 30 minutes, 4 hours, and 16 hours, respectively) and on days 2 through 5 (100 mg per kilogram per day in 1000 ml of 5% glucose solution). The prednisolone-only group received an infusion in 1000 ml of 5% glucose solution per day on days 1 through 5. The primary outcome was 6-month survival. Secondary outcomes included survival at 1 and 3 months, hepatitis complications, adverse events related to N-acetylcysteine use, and changes in bilirubin levels on days 7 and 14. RESULTS: Mortality was not significantly lower in the prednisolone-N-acetylcysteine group than in the prednisolone-only group at 6 months (27% vs. 38%, P = 0.07). Mortality was significantly lower at 1 month (8% vs. 24%, P = 0.006) but not at 3 months (22% vs. 34%, P = 0.06). Death due to the hepatorenal syndrome was less frequent in the prednisolone-N-acetylcysteine group than in the prednisolone-only group at 6 months (9% vs. 22%, P = 0.02). In a multivariate analysis, factors associated with 6-month survival were a younger age (P<0.001), a shorter prothrombin time (P<0.001), a lower level of bilirubin at baseline (P<0.001), and a decrease in bilirubin on day 14 (P<0.001). Infections were less frequent in the prednisolone-N-acetylcysteine group than in the prednisolone-only group (P = 0.001); other side effects were similar in the two groups. CONCLUSIONS: Although combination therapy with prednisolone plus N-acetylcysteine increased 1-month survival among patients with severe acute alcoholic hepatitis, 6-month survival, the primary outcome, was not improved. (Funded by Programme Hospitalier de Recherche Clinique; AAH-NAC ClinicalTrials.gov number, NCT00863785 .).


Subject(s)
Acetylcysteine/therapeutic use , Antioxidants/therapeutic use , Glucocorticoids/therapeutic use , Hepatitis, Alcoholic/drug therapy , Prednisolone/therapeutic use , Acetylcysteine/adverse effects , Antioxidants/adverse effects , Bilirubin/blood , Cause of Death , Drug Therapy, Combination , Female , Glucocorticoids/adverse effects , Hepatitis, Alcoholic/mortality , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Prednisolone/adverse effects , Risk Factors
15.
JPEN J Parenter Enteral Nutr ; 32(6): 622-4, 2008.
Article in English | MEDLINE | ID: mdl-18827071

ABSTRACT

BACKGROUND & AIMS: To assess the success rate of a self-propelling nasojejunal feeding tube in patients with acute pancreatitis. METHODS: All patients admitted for acute pancreatitis were included. A self-propelling nasojejunal feeding tube was introduced into the stomach, and gastrointestinal motility was stimulated using metoclopramide. If the tube failed to advance to the ligament of Treitz, a nasojejunal tube was placed endoscopically. RESULTS: A total of 108 patients, 94 with necrotizing pancreatitis (Balthazar D/E) and 14 with nonnecrotizing pancreatitis (Balthazar B/C), were referred for artificial nutrition. In 11 cases, ileus persisted and parenteral nutrition was initiated. Among the remaining 97 patients, 5 refused tube placement. The self-propelling feeding tube was inserted in 92 patients with successful migration to the ligament of Treitz in 61% (n = 56) and failure in 39% (n = 36). Of the 36 patients with an initial failed placement, endoscopic placement of a nasojejunal tube was successful 80% of the time (29 patients). The success rate of a nasojejunal self-propelling feeding tube placement correlated directly with the severity of the acute pancreatitis (92% in B/C vs 61% in D vs 48% in E; P < .05). CONCLUSIONS: Use of a self-propelling nasojejunal tube is a simple technique that can be successfully performed in the majority of patients with acute pancreatitis. The utility of this procedure in the most severe cases of acute pancreatitis continues to pose a challenge.


Subject(s)
Enteral Nutrition/instrumentation , Intubation, Gastrointestinal/instrumentation , Intubation, Gastrointestinal/methods , Pancreatitis, Acute Necrotizing/therapy , Pancreatitis/therapy , Acute Disease , Enteral Nutrition/methods , Equipment Design , Feasibility Studies , Female , Gastrointestinal Motility/drug effects , Gastrointestinal Motility/physiology , Humans , Male , Metoclopramide/pharmacology , Middle Aged , Severity of Illness Index , Treatment Failure , Treatment Outcome
16.
Mol Nutr Food Res ; 52(8): 875-84, 2008 Aug.
Article in English | MEDLINE | ID: mdl-18711759

ABSTRACT

Enteral nutrition has long been a therapeutic alternative often used in adult Crohn's disease patients to obtain remission or clinical response, especially in those not responding to conventional therapy such as corticosteroids. However, the increasing use of immunosuppressors (6-mercaptopurine and azathioprine, methotrexate, etc.), and the advent of biotherapies (especially anti-tumor necrosis factor-alpha (TNF-alpha) antibodies), decreased its use in adult Crohn's disease. Nevertheless, enteral nutrition remains of interest in patients presenting concomitant malnutrition (in particular in nonobstructed patients needing surgery), or in those intolerant or who failed to other therapeutics. In addition, recent studies provide data indicating its potential interest in maintenance therapy in selected patients groups. Finally, future research (in particular in the field of immuno- or pharmaconutrition) could lead to enteral formula's improvement, with better tolerance and acceptability, as well as increased efficacy.


Subject(s)
Crohn Disease/therapy , Enteral Nutrition/methods , Adult , Crohn Disease/complications , Glutamine/administration & dosage , Humans , Lipids/administration & dosage , Transforming Growth Factor beta2/administration & dosage
18.
Am J Physiol Endocrinol Metab ; 294(1): E110-9, 2008 Jan.
Article in English | MEDLINE | ID: mdl-17986629

ABSTRACT

Nonalcoholic fatty liver disease (NAFLD) has become common liver disease in Western countries. There is accumulating evidence that mitochondria play a key role in NAFLD. Nevertheless, the mitochondrial consequences of steatohepatitis are still unknown. The bioenergetic changes induced in a methionine- and choline-deficient diet (MCDD) model of steatohepatitis were studied in rats. Liver mitochondria from MCDD rats exhibited a higher rate of oxidative phosphorylation with various substrates, a rise in cytochrome oxidase (COX) activity, and an increased content in cytochrome aa3. This higher oxidative activity was associated with a low efficiency of the oxidative phosphorylation (ATP/O, i.e., number of ATP synthesized/natom O consumed). Addition of a low concentration of cyanide, a specific COX inhibitor, restored the efficiency of mitochondria from MCDD rats back to the control level. Furthermore, the relation between respiratory rate and protonmotive force (in the nonphosphorylating state) was shifted to the left in mitochondria from MCDD rats, with or without cyanide. These results indicated that, in MCDD rats, mitochondrial ATP synthesis efficiency was decreased in relation to both proton pump slipping at the COX level and increased proton leak although the relative contribution of each phenomenon could not be discriminated. MCDD mitochondria also showed a low reactive oxygen species production and a high lipid oxidation potential. We conclude that, in MCDD-fed rats, liver mitochondria exhibit an energy wastage that may contribute to limit steatosis and oxidative stress in this model of steatohepatitis.


Subject(s)
Adaptation, Physiological/physiology , Choline Deficiency/metabolism , Fatty Liver/metabolism , Hepatitis/metabolism , Methionine/deficiency , Mitochondria, Liver/metabolism , Animal Feed , Animals , Choline/pharmacology , Choline Deficiency/physiopathology , Energy Metabolism/physiology , Fatty Liver/physiopathology , Hepatitis/physiopathology , Interleukin-6/genetics , Male , Malnutrition/metabolism , Malnutrition/physiopathology , Methionine/pharmacology , Oxidative Phosphorylation , Oxygen Consumption/physiology , Rats , Rats, Wistar , Receptors, Tumor Necrosis Factor/genetics , Reverse Transcriptase Polymerase Chain Reaction , Tumor Necrosis Factor-alpha/genetics
19.
Nutr Metab (Lond) ; 4: 4, 2007 Feb 21.
Article in English | MEDLINE | ID: mdl-17313679

ABSTRACT

BACKGROUND: Understanding of nonalcoholic steatohepatitis (NASH) is hampered by the lack of a suitable model. Our aim was to investigate whether long term high saturated-fat feeding would induce NASH in rats. METHODS: 21 day-old rats fed high fat diets for 14 weeks, with either coconut oil or butter, and were compared with rats feeding a standard diet or a methionine choline-deficient (MCD) diet, a non physiological model of NASH. RESULTS: MCDD fed rats rapidly lost weight and showed NASH features. Rats fed coconut (86% of saturated fatty acid) or butter (51% of saturated fatty acid) had an increased caloric intake (+143% and +30%). At the end of the study period, total lipid ingestion in term of percentage of energy intake was higher in both coconut (45%) and butter (42%) groups than in the standard (7%) diet group. No change in body mass was observed as compared with standard rats at the end of the experiment. However, high fat fed rats were fattier with enlarged white and brown adipose tissue (BAT) depots, but they showed no liver steatosis and no difference in triglyceride content in hepatocytes, as compared with standard rats. Absence of hepatic lipid accumulation with high fat diets was not related to a higher lipid oxidation by isolated hepatocytes (unchanged ketogenesis and oxygen consumption) or hepatic mitochondrial respiration but was rather associated with a rise in BAT uncoupling protein UCP1 (+25-28% vs standard). CONCLUSION: Long term high saturated fat feeding led to increased "peripheral" fat storage and BAT thermogenesis but did not induce hepatic steatosis and NASH.

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