title: Effects of an Encapsulated Fruit and Vegetable Juice Concentrate on Obesity-Induced Systemic Inflammation: A Randomised Controlled Trial.
abstract: Phytochemicals from fruit and vegetables reduce systemic inflammation. This study examined the effects of an encapsulated fruit and vegetable (F&amp;V) juice concentrate on systemic inflammation and other risk factors for chronic disease in overweight and obese adults. A double-blinded, parallel, randomized placebo-controlled trial was conducted in 56 adults aged ≥40 years with a body mass index (BMI) ≥28 kg/m². Before and after eight weeks daily treatment with six capsules of F&amp;V juice concentrate or placebo, peripheral blood gene expression (microarray, quantitative polymerase chain reaction (qPCR)), plasma tumour necrosis factor (TNF)α (enzyme-linked immunosorbent assay (ELISA)), body composition (Dual-energy X-ray absorptiometry (DEXA)) and lipid profiles were assessed. Following consumption of juice concentrate, total cholesterol, low-density lipoprotein (LDL) cholesterol and plasma TNFα decreased and total lean mass increased, while there was no change in the placebo group. In subjects with high systemic inflammation at baseline (serum C-reactive protein (CRP) ≥3.0 mg/mL) who were supplemented with the F&amp;V juice concentrate (n= 16), these effects were greater, with decreased total cholesterol, LDL cholesterol and plasma TNFα and increased total lean mass; plasma CRP was unchanged by the F&amp;V juice concentrate following both analyses. The expression of several genes involved in lipogenesis, the nuclear factor-κB (NF-κB) and 5' adenosine monophosphate-activated protein kinase (AMPK) signalling pathways was altered, including phosphomevalonate kinase (PMVK), zinc finger AN1-type containing 5 (ZFAND5) and calcium binding protein 39 (CAB39), respectively. Therefore, F&amp;V juice concentrate improves the metabolic profile, by reducing systemic inflammation and blood lipid profiles and, thus, may be useful in reducing the risk of obesity-induced chronic disease.
authors.affiliation: Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan NSW 2308, Australia. evan.j.williams@uon.edu.au.
authors.forename: Evan J
authors.initials: EJ
authors.lastname: Williams
authors.affiliation: Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan NSW 2308, Australia. katherine.baines@newcastle.edu.au.
authors.forename: Katherine J
authors.initials: KJ
authors.lastname: Baines
authors.affiliation: Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan NSW 2308, Australia. bronwyn.berthon@newcastle.edu.au.
authors.forename: Bronwyn S
authors.initials: BS
authors.lastname: Berthon
authors.affiliation: Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Callaghan NSW 2308, Australia. Lisa.wood@newcastle.edu.au.
authors.forename: Lisa G
authors.initials: LG
authors.lastname: Wood
mesh_terms: D055372:AMP-Activated Protein Kinases / Q000235:genetics / Q000378:metabolism; D015502:Absorptiometry, Photon; D000328:Adult; D001823:Body Composition; D015992:Body Mass Index; D002097:C-Reactive Protein / Q000032:analysis; D002135:Calcium-Binding Proteins / Q000235:genetics / Q000378:metabolism; D002338:Carotenoids / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D004032:Diet; D004311:Double-Blind Method; D005260:Female; D005638:Fruit / Q000737:chemistry*; D000067030:Fruit and Vegetable Juices; D006801:Humans; D007249:Inflammation / Q000097:blood / Q000178:diet therapy* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D016328:NF-kappa B / Q000235:genetics / Q000378:metabolism; D009765:Obesity / Q000097:blood / Q000150:complications / Q000178:diet therapy*; D017856:Phosphotransferases (Phosphate Group Acceptor) / Q000235:genetics / Q000378:metabolism; D011506:Proteins / Q000235:genetics / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000097:blood; D014675:Vegetables / Q000737:chemistry*; D055105:Waist Circumference
chemical_list: C540569:CAB39 protein, human; D002135:Calcium-Binding Proteins; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D016328:NF-kappa B; D011506:Proteins; D014409:Tumor Necrosis Factor-alpha; C114488:ZFAND5 protein, human; D002338:Carotenoids; D002097:C-Reactive Protein; D055372:AMP-Activated Protein Kinases; D017856:Phosphotransferases (Phosphate Group Acceptor); C022371:phosphomevalonate kinase
keywords: blood lipids; fruit and vegetable concentrate; obesity; systemic Inflammation