1
|
Liang Y, Wang C, Yang L, Yang K, Zhang S, Xie W. Nonsurgical risk factors for marginal ulcer following Roux-en-Y gastric bypass for obesity: a systematic review and meta-analysis of 14 cohort studies. Int J Surg 2024; 110:1793-1799. [PMID: 38320087 PMCID: PMC10942228 DOI: 10.1097/js9.0000000000001042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/20/2023] [Indexed: 02/08/2024]
Abstract
BACKGROUNDS Marginal ulcer (MU) is a common complication of Roux-en-Y Gastric Bypass (RYGB). The primary goal of this meta-analysis was to identify potential risk factors for MU post-RYGB. METHODS A comprehensive literature search was conducted on four databases (PubMed, Embase, Web of Science, and the Cochrane Library) to identify articles published from inception to 23 May 2023 that reported risk factors linked to ulcer occurrence post-RYGB. Hazard Ratio (HR) and Odds Ratio (OR) with respective 95% CI were calculated to estimate the impact of selected risk factors on MU. The risk factors were evaluated through multivariate analyses. The estimated risk factors were subjected to a random-effects model. Subgroup analysis based on study baseline characteristics and leave-one-out sensitivity analysis were also performed to investigate the potential sources of heterogeneity and assess the robustness of the findings. RESULT Herein, 14 observational studies involving 77 250 patients were included. Diabetes, smoking, and steroid use were identified to be risk factors of MU, with pooled ORs of (1.812; 95% CI: 1.226-2.676; P =0.003), (3.491; 95% CI: 2.204-5.531; P< 0.001), and (2.804; 95% CI: 1.383-5.685; P =0.004), respectively. Other risk factors, such as alcohol consumption, male sex, and PPI use, were deemed not significant due to differences in data acquisition and effect estimates. CONCLUSION Diabetes, smoking, and steroid use were identified as independent risk factors of MU. Enhancing awareness of these identified risk factors will lead to more effective preoperative prevention and targeted postoperative interventions for patients undergoing RYGB.
Collapse
Affiliation(s)
| | | | | | | | | | - Wenbiao Xie
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, People’s Republic of China
| |
Collapse
|
2
|
Kim B, Kim GM, Oh S. Use of the Visceral Adiposity Index as an Indicator of Chronic Kidney Disease in Older Adults: Comparison with Body Mass Index. J Clin Med 2022; 11:6297. [PMID: 36362525 PMCID: PMC9659218 DOI: 10.3390/jcm11216297] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/14/2022] [Accepted: 10/21/2022] [Indexed: 12/27/2023] Open
Abstract
The visceral adiposity index (VAI) was recently introduced to quantify visceral fat accumulation and dysfunction. This cross-sectional study explored whether the VAI is associated with chronic kidney disease (CKD) in older adults and compared its utility with that of body mass index (BMI) for predicting CKD. In total, 7736 older adults (3479 men and 4257 women) aged ≥ 60 years were divided into normal, mild, and moderate-to-severe CKD groups. Associations of the VAI and BMI with CKD were compared among the groups, and cut-off points for moderate-to-severe CKD (MSCKD) were established. While the VAI could discriminate among all of the groups, the BMI could not. The severity of CKD was more strongly associated with the VAI than BMI. The odds ratios indicated that, in the fully adjusted model, the VAI was a significant predictor of MSCKD in both men and women, while the BMI was a significant predictor only in men. For the VAI, the area under the receiver operating characteristic curve values for men and women were 0.631 (cut-off point: ≥2.993) and 0.588 (≥4.001), compared with 0.555 (≥25.335) and 0.533 (≥24.096) for BMI, respectively. Taken together, the findings suggest that the VAI is associated with CKD and represents a better indicator for the disease than BMI.
Collapse
Affiliation(s)
- Bokun Kim
- Department of Anti-Ageing Health Care, Changwon National University, Changwon 51140, Korea
- Future Convergence Research Institute, Changwon National University, Changwon 51140, Korea
- Department of Sports Healthcare, In-Je University, Gimhae 50834, Korea
| | - Gwon-Min Kim
- Medical Research Institute, Pusan National University, Busan 46241, Korea
| | - Sechang Oh
- Faculty of Rehabilitation, R Professional University of Rehabilitation, Tsuchiura 300-0032, Japan
| |
Collapse
|
3
|
Xu DL, Zhao MX. Leptin mediates the suppressive effect of partial fat removal on cellular and humoral immunity in striped hamsters. Comp Biochem Physiol A Mol Integr Physiol 2022; 271:111256. [PMID: 35690304 DOI: 10.1016/j.cbpa.2022.111256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/17/2022] [Accepted: 06/03/2022] [Indexed: 10/18/2022]
Abstract
Leptin secreted mainly by white adipose tissues (WAT) plays an important role in immune responses. To understand the role of energy status and leptin in immunity, bilateral perigonadal fat pads were removed or sham-removed in male striped hamsters (Cricetulus barabensis). Half of these hamsters were injected with sterile saline, and another half were administrated with exogenous leptin each day, which lasted for 20 days. Fat removal reduced total body fat mass and leptin titers significantly, leptin administration increased leptin levels in the fat removed hamsters to the control levels, but did not affect total body fat mass. Body mass and gross energy intake were not affected by fat removal, leptin supplement or their interaction. Fat removal decreased thymus mass, phytohaemagglutinin (PHA) response at 12 h, and the levels of immunoglobin (Ig) G 5, IgG10, IgM5, IgM10, IL-2, IL-4, and TNF-α, indicating a reduction in fat mass suppressed cellular and humoral immunity and the production of cytokines. However, fat removal had no effect on spleen mass, bacteria killing activity and IFN-γ titers. Leptin supplement increased PHA response at 6 h and 12 h, and the levels of IgG5, IgG10, IL-4, and IFN-γ to the control levels, implying its boosting effects on these parameters. In addition, leptin level was positively correlated with body fat mass, PHA 6 h, 12 h, Ig G10, Ig M5, Ig M10, IL-2, IL-4, and TNF-α. Collectively, these findings implied leptin was a link between energy status and immunity, and leptin mediated the suppressive effects of reduced energy storage on cellular and humoral immunity.
Collapse
Affiliation(s)
- De-Li Xu
- College of Life Sciences, Qufu Normal University, Qufu 273165, Shandong Province, China.
| | - Ming-Xing Zhao
- College of Life Sciences, Qufu Normal University, Qufu 273165, Shandong Province, China
| |
Collapse
|
4
|
Impact of Obesity and Being Overweight on the Immunogenicity to Live Attenuated Hepatitis A Vaccine in Children and Young Adults. Vaccines (Basel) 2021; 9:vaccines9020130. [PMID: 33562009 PMCID: PMC7915133 DOI: 10.3390/vaccines9020130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/16/2022] Open
Abstract
Prior results investigating a correlation between obesity and hepatitis A virus (HAV) vaccine response have been inconclusive, with limited data involving live attenuated HAV vaccines. The aim of this study is to evaluate the effect of overweight and obesity on the response to live attenuated HAV vaccine in children and young adults. This prospective cohort study was conducted in Thailand with subjects ranging in age from seven to twenty-five years. The subjects were administered 0.5 mL of MEVAC™-A and tested for anti-HAV antibodies before and at 8–9 weeks after vaccination. Baseline seronegative subjects (anti-HAV antibodies < 20 mIU/mL) were divided into non-obese (underweight/normal weight) and obese (overweight/obesity/severe obesity) groups. A total of 212 (117 non-obese and 95 obese) subjects completed the study (mean age (SD) = 13.95 (3.90) years). The seroprotection rates were 100%. Postvaccination geometric mean titers (95% CI) were 429.51 (401.97, 458.94) and 467.45 (424.47, 514.79) mIU/mL in the non-obese and obese groups, respectively. Females (p = 0.013) and subjects with truncal obesity (p = 0.002) had significantly higher titers than other participants. Live attenuated HAV vaccine is safe and has comparably high immunogenicity in both underweight/normal weight and overweight/obese persons.
Collapse
|
5
|
Chang ML, Yang Z, Yang SS. Roles of Adipokines in Digestive Diseases: Markers of Inflammation, Metabolic Alteration and Disease Progression. Int J Mol Sci 2020; 21:ijms21218308. [PMID: 33167521 PMCID: PMC7663948 DOI: 10.3390/ijms21218308] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 12/13/2022] Open
Abstract
Adipose tissue is a highly dynamic endocrine tissue and constitutes a central node in the interorgan crosstalk network through adipokines, which cause pleiotropic effects, including the modulation of angiogenesis, metabolism, and inflammation. Specifically, digestive cancers grow anatomically near adipose tissue. During their interaction with cancer cells, adipocytes are reprogrammed into cancer-associated adipocytes and secrete adipokines to affect tumor cells. Moreover, the liver is the central metabolic hub. Adipose tissue and the liver cooperatively regulate whole-body energy homeostasis via adipokines. Obesity, the excessive accumulation of adipose tissue due to hyperplasia and hypertrophy, is currently considered a global epidemic and is related to low-grade systemic inflammation characterized by altered adipokine regulation. Obesity-related digestive diseases, including gastroesophageal reflux disease, Barrett’s esophagus, esophageal cancer, colon polyps and cancer, non-alcoholic fatty liver disease, viral hepatitis-related diseases, cholelithiasis, gallbladder cancer, cholangiocarcinoma, pancreatic cancer, and diabetes, might cause specific alterations in adipokine profiles. These patterns and associated bases potentially contribute to the identification of prognostic biomarkers and therapeutic approaches for the associated digestive diseases. This review highlights important findings about altered adipokine profiles relevant to digestive diseases, including hepatic, pancreatic, gastrointestinal, and biliary tract diseases, with a perspective on clinical implications and mechanistic explorations.
Collapse
Affiliation(s)
- Ming-Ling Chang
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Correspondence: ; Tel.: +886-3-328-1200 (ext. 8108); Fax: +886-3-327-2236
| | - Zinger Yang
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA;
| | - Sien-Sing Yang
- Liver Center, Cathay General Hospital Medical Center, Taipei 10630, Taiwan;
| |
Collapse
|
6
|
Goldberg EK, Fung EB. Precision of the Hologic DXA in the Assessment of Visceral Adipose Tissue. J Clin Densitom 2020; 23:664-672. [PMID: 30992223 PMCID: PMC6754313 DOI: 10.1016/j.jocd.2019.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Visceral fat, also known as visceral adipose tissue (VAT), has been the focus of intensive research over the past several yr, as ground breaking studies have investigated its possible role in predicting long-term cardiac dysfunction, hypertension, and diabetes. Historically, magnetic resonance imaging and computed tomography were the instruments of choice for visceral fat quantification. However, with the introduction of visceral fat assessment software for Dual-energy X-ray Absorptiometry (DXA) scanners, DXA's use for VAT assessment has become increasingly common. To effectively utilize DXA in future VAT research studies, information about their precision and accuracy must be known. This study provides novel information regarding the precision of the Hologic Horizon DXA scanner in the assessment of VAT. METHODS Sixty individuals (32.7 ± 17.1 yr, 51% male, 40% with body mass index (BMI) > 25 kg/m2) above the age of 16 years were recruited to participate in this study. Subjects found to be pregnant, have a lumbar vertebral compression fracture, nonremovable metal implants in the abdomen, or scoliosis/lordosis/kyphosis were excluded from the study. All subjects underwent 3 consecutive whole body scans on a Hologic Horizon A DXA scanner. RESULTS VAT mass ranged from 102 g to 1454 g. VAT precision improved with increasing BMI (p = 0.025): coefficient of variation (%CV) was 15.2% for underweight subjects (n = 2), 7.1% for healthy subjects (n = 34), 6.4% for overweight subjects (n = 18), and 4.7% for obese subjects (n = 6). CONCLUSIONS VAT measurement by Hologic DXA displays a satisfactory level of precision in individuals with a BMI of >18.5 kg/m2. Precision was found to be higher in those with the greatest risk of cardio-metabolic dysfunction (individuals with high VAT). Due to its low cost, brief examination time, noninvasiveness, and limited radiation exposure, DXA may be considered the tool of choice for VAT determination in future studies.
Collapse
Affiliation(s)
| | - Ellen B Fung
- Children's Hospital Oakland Research Institute, Oakland, CA, USA; Department of Hematology, UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA.
| |
Collapse
|
7
|
English WJ, Spann MD, Aher CV, Williams DB. Cardiovascular risk reduction following metabolic and bariatric surgery. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:S12. [PMID: 32309416 PMCID: PMC7154333 DOI: 10.21037/atm.2020.01.88] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cardiovascular disease (CVD) is the world’s leading cause of mortality and obesity is a well-recognized risk factor of CVD. Early detection and management of CVD is critical to reduce CVD risk. Especially in patients suffering from obesity with obesity-related CVD risk factors such as hypertension (HTN), dyslipidemia, and diabetes mellitus (DM). A substantial and sustained decrease in body weight after metabolic and bariatric surgery is associated with a significant reduction of cardiovascular risk factors. This article reviews CVD risk models, mechanisms of CVD risk associated with obesity, and overall CVD risk reduction between different metabolic and bariatric procedures.
Collapse
Affiliation(s)
- Wayne J English
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Matthew D Spann
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Chetan V Aher
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - D Brandon Williams
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| |
Collapse
|
8
|
De Amicis R, Galasso L, Leone A, Vignati L, De Carlo G, Foppiani A, Montaruli A, Roveda E, Cè E, Esposito F, Vanzulli A, Battezzati A, Bertoli S. Is Abdominal Fat Distribution Associated with Chronotype in Adults Independently of Lifestyle Factors? Nutrients 2020; 12:nu12030592. [PMID: 32106417 PMCID: PMC7146439 DOI: 10.3390/nu12030592] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 12/28/2022] Open
Abstract
Both abdominal obesity and its visceral component are independently associated with cardiometabolic diseases. Among the non-modifiable and modifiable determinants, lifestyle plays a central role, while chronotype is an emerging factor. Evening type (E-Type), more active and efficient in the last part of the day, has been associated with a health-impairing style, resulting in a higher risk of obesity and cardiometabolic diseases than morning type (M-Type). However, no study has examined the contribution of chronotype to abdominal fat distribution, even considering adherence to the Mediterranean diet (MD). We conducted a cross-sectional study on 416 adults (69.5% females, 50 ± 13 years). Waist circumference (WC), visceral fat (VAT) using ultrasonography, chronotype through the reduced Morningness-Eveningness Questionnaire (rMEQ), and adherence to MD were studied. Our results showed no differences in WC and VAT between chronotypes. However, adherence to MD resulted significantly lower in the E-Types compared to M-Types. WC decreased with increasing Mediterranean score and rMEQ score, and VAT decreased with increasing rMEQ score, indicating that E-Types have +2 cm of WC and +0.5 cm of VAT compared to M-Types. In conclusion, these results showed that chronotype is independently associated with abdominal obesity and visceral fat, underlining the potential implications of the individual circadian typology on abdominal obesity.
Collapse
Affiliation(s)
- Ramona De Amicis
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
- Correspondence: ; Tel.: +39-02503-16652
| | - Letizia Galasso
- Department of Biomedical Sciences for Health, University of Milan, Via Giuseppe Colombo 71, 20133 Milan, Italy; (L.G.); (A.M.); (E.R.); (E.C.); (F.E.)
| | - Alessandro Leone
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
| | - Laila Vignati
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
| | - Giulia De Carlo
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
| | - Andrea Foppiani
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
| | - Angela Montaruli
- Department of Biomedical Sciences for Health, University of Milan, Via Giuseppe Colombo 71, 20133 Milan, Italy; (L.G.); (A.M.); (E.R.); (E.C.); (F.E.)
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milan, Italy
| | - Eliana Roveda
- Department of Biomedical Sciences for Health, University of Milan, Via Giuseppe Colombo 71, 20133 Milan, Italy; (L.G.); (A.M.); (E.R.); (E.C.); (F.E.)
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milan, Italy
| | - Emiliano Cè
- Department of Biomedical Sciences for Health, University of Milan, Via Giuseppe Colombo 71, 20133 Milan, Italy; (L.G.); (A.M.); (E.R.); (E.C.); (F.E.)
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milan, Italy
| | - Fabio Esposito
- Department of Biomedical Sciences for Health, University of Milan, Via Giuseppe Colombo 71, 20133 Milan, Italy; (L.G.); (A.M.); (E.R.); (E.C.); (F.E.)
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milan, Italy
| | - Angelo Vanzulli
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy;
| | - Alberto Battezzati
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
| | - Simona Bertoli
- International Center for the Assessment of Nutritional Status (ICANS), Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Sandro Botticelli 21, 20133 Milan, Italy; (A.L.); (G.D.C.); (A.F.); (A.B.); (S.B.)
- IRCCS Istituto Auxologico Italiano, Obesity Unit and Laboratory of Nutrition and Obesity Research, Department of Endocrine and Metabolic Diseases, 20145 Milan, Italy
| |
Collapse
|
9
|
Martini DJ, Kline MR, Liu Y, Shabto JM, Williams MA, Khan AI, Lewis C, Collins H, Akce M, Kissick HT, Carthon BC, Shaib WL, Alese OB, Pillai RN, Steuer CE, Wu CS, Lawson DH, Kudchadkar RR, El‐Rayes BF, Ramalingam SS, Owonikoko TK, Harvey RD, Master VA, Bilen MA. Adiposity may predict survival in patients with advanced stage cancer treated with immunotherapy in phase 1 clinical trials. Cancer 2019; 126:575-582. [DOI: 10.1002/cncr.32576] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/27/2019] [Accepted: 08/14/2019] [Indexed: 12/21/2022]
|
10
|
Murray KA, Hoad CL, Garratt J, Kaviani M, Marciani L, Smith JK, Siegmund B, Gowland PA, Humes DJ, Spiller RC. A pilot study of visceral fat and its association with adipokines, stool calprotectin and symptoms in patients with diverticulosis. PLoS One 2019; 14:e0216528. [PMID: 31067253 PMCID: PMC6505945 DOI: 10.1371/journal.pone.0216528] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 04/18/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Complications of diverticular disease are increasingly common, possibly linked to increasing obesity. Visceral fat could contribute to the development of symptomatic diverticular disease through its pro-inflammatory effects. OBJECTIVE The study had 2 aims. A) to develop a semi-automated algorithm to measure abdominal adipose tissue from 2-echo magnetic resonance imaging (MRI) data; B) to use this to determine if visceral fat was associated with bowel symptoms and inflammatory markers in patients with symptomatic and asymptomatic diverticular disease. DESIGN An observational study measuring visceral fat using MRI together with serum adiponectin, leptin, stool calprotectin and patient-reported somatisation and bowel habit. SETTING Medical and imaging research centres of a university hospital. PARTICIPANTS MRI scans were performed on 55 patients after an overnight fast measuring abdominal subcutaneous and visceral adipose tissue volumes together with small bowel water content (SBWC). Blood and stool samples were collected and patients kept a 2 week stool diary and completed a somatisation questionnaire. MAIN OUTCOME MEASURES Difference in the volume of visceral fat between symptomatic and asymptomatic patients. RESULTS There were no significant differences in visceral (p = 0.98) or subcutaneous adipose (p = 0.60) tissue between symptomatic and asymptomatic patients. However measured fat volumes were associated with serum adipokines. Adiponectin showed an inverse correlation with visceral adipose tissue (VAT) (Spearman ρ = -0.5, p = 0.0003), which correlated negatively with SBWC (ρ = -0.3, p = 0.05). Leptin correlated positively with subcutaneous adipose tissue (ρ = 0.8, p < 0.0001). Overweight patients (BMI > 25 kgm-2) showed a moderate correlation between calprotectin and VAT (ρ = 0.3, p = 0.05). Somatization scores were significantly higher in symptomatic patients (p < 0.0003). CONCLUSIONS Increasing visceral fat is associated with lower serum adiponectin and increased faecal calprotectin suggesting a pro-inflammatory effect which may predispose to the development of complications of diverticulosis.
Collapse
Affiliation(s)
- Kathryn A. Murray
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
- Trinity Medical Sciences University, Ratho Mill, Kingstown, St. Vincent, West Indies
| | - Caroline L. Hoad
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| | - Jill Garratt
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| | - Mehri Kaviani
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom
| | - Luca Marciani
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| | - Jan K. Smith
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| | - Britta Siegmund
- Gastroenterology, Rheumatology, Infectious Diseases, Charité –Universitätsmedizin, Berlin, Germany
| | - Penny A. Gowland
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom
| | - David J. Humes
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| | - Robin C. Spiller
- Nottingham Digestive Diseases Centre and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Nottingham, United Kingdom
| |
Collapse
|
11
|
Lanas A, Abad-Baroja D, Lanas-Gimeno A. Progress and challenges in the management of diverticular disease: which treatment? Therap Adv Gastroenterol 2018; 11:1756284818789055. [PMID: 30046356 PMCID: PMC6056793 DOI: 10.1177/1756284818789055] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 06/11/2018] [Indexed: 02/04/2023] Open
Abstract
Diverticular disease of the colon (DDC) includes a spectrum of conditions from asymptomatic diverticulosis to symptomatic uncomplicated diverticulosis, segmental colitis associated with diverticulosis, and acute diverticulitis without or with complications that may have serious consequences. Clinical and scientific interest in DDC is increasing because of the rising incidence of all conditions within the DDC spectrum, a better, although still limited understanding of the pathogenic mechanisms involved; the increasing socioeconomic burden; and the new therapeutic options being tested. The goals of treatment in DDC are symptom and inflammation relief and preventing disease progression or recurrence. The basis for preventing disease progression remains a high-fiber diet and physical exercise, although evidence is poor. Other current strategies do not meet expectations or lack a solid mechanistic foundation; these strategies include modulation of gut microbiota or dysbiosis with rifaximin or probiotics, or using mesalazine for low-grade inflammation in uncomplicated symptomatic diverticulosis. Most acute diverticulitis is uncomplicated, and the trend is to avoid hospitalization and unnecessary antibiotic therapy, but patients with comorbidities, sepsis, or immunodeficiency should receive broad spectrum and appropriate antibiotics. Complicated acute diverticulitis may require interventional radiology or surgery, although the best surgical approach (open versus laparoscopic) remains a matter of discussion. Prevention of acute diverticulitis recurrence remains undefined, as do therapeutic strategies. Mesalazine with or without probiotics has failed to prevent diverticulitis recurrence, whereas new studies are needed to validate preliminary positive results with rifaximin. Surgery is another option, but the number of acute events cannot guide this indication. We need to identify risk factors and disease progression or recurrence mechanisms to implement appropriate preventive strategies.
Collapse
Affiliation(s)
- Angel Lanas
- Servicio de Aparato Digestivo, Hospital Clínico
Universitario Lozano Blesa, C/ San Juan Bosco 15, Zaragoza, 50009, Spain.
University of Zaragoza. IIS Aragón. CIBERehs
| | - Daniel Abad-Baroja
- Servicio de Aparato Digestivo University Clinic
Hospital Lozano Blesa, Spain
| | | |
Collapse
|
12
|
Elisei W, Tursi A. The Pathophysiology of Colonic Diverticulosis: Inflammation versus Constipation? Inflamm Intest Dis 2018; 3:55-60. [PMID: 30733948 DOI: 10.1159/000489173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/12/2018] [Indexed: 12/18/2022] Open
Abstract
Background Diverticulosis of the colon is the most common anatomic alteration of the human colon, but the pathophysiologic mechanisms of its occurrence are not completely understood. Summary Constipation has been considered the key factor for diverticulosis occurrence. However, several fine papers questioned this pathogenetic hypothesis, showing on the contrary an inverse relationship between low number of bowel movements and diverticulosis occurrence. In the last years, several papers have showed the role of low-grade inflammation in the occurrence of symptoms in people having diverticulosis, as well as its role on symptom persistence following acute diverticulitis, even if the evidence available is not so strong. Although the trigger of this low-grade inflammation is currently under debate, some preliminary evidence found colonic dysbiosis linked to symptom occurrence in those patients. Key Messages Constipation no longer seems the leading cause for diverticulosis occurrence, while low-grade inflammation could play a role in symptom occurrence.
Collapse
Affiliation(s)
- Walter Elisei
- Gastroenterology Unit, ASL Roma 6, Albano Laziale, Italy
| | | |
Collapse
|
13
|
Zehsaz F, Farhangi N, Ghahramani M. Exercise training lowers serum chemerin concentration in obese children. Sci Sports 2017. [DOI: 10.1016/j.scispo.2016.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
14
|
Abstract
PURPOSE OF REVIEW The composition of activated adipose tissue with adipocytes secreting a broad spectrum of immune-modulatory adipokines next to adipose tissue-derived stromal cells and professional immune effector cells in the visceral fat creates a complex network of inflammatory processes shaping local immune responses in the adjacent inflamed intestinal mucosa. RECENT FINDINGS In Crohn's disease a particular phenomenon called 'creeping fat' can be observed. Here the hyperplastic mesenteric fat tissue not only grows around inflamed small intestinal segments but also furthermore affects the regulation of the mucosal immune system. Diverticular disease is highly prevalent in the western world but the knowledge about its immunopathology remains incomplete. Interestingly, adipose tissue also frequently covers the basolateral site of inflamed diverticula, hence locally reflecting the phenomenon seen in Crohn's disease. SUMMARY This review aims to summarize the current knowledge in which measures this intraabdominal fat participates in the regulation of intestinal inflammation with a particular focus on differences and possible parallels in Crohn's disease and diverticulitis. The available data allow for suggesting that each inflamed diverticula mechanistically reflects Crohn's disease on a miniature scale.
Collapse
|
15
|
A Single Bout of Fasting (24 h) Reduces Basal Cytokine Expression and Minimally Impacts the Sterile Inflammatory Response in the White Adipose Tissue of Normal Weight F344 Rats. Mediators Inflamm 2016; 2016:1698071. [PMID: 28077915 PMCID: PMC5203907 DOI: 10.1155/2016/1698071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/20/2016] [Indexed: 01/10/2023] Open
Abstract
Sterile inflammation occurs when inflammatory proteins are increased in blood and tissues by nonpathogenic states and is a double-edged sword depending on its cause (stress, injury, or disease), duration (transient versus chronic), and inflammatory milieu. Short-term fasting can exert a host of health benefits through unknown mechanisms. The following experiment tested if a 24 h fast would modulate basal and stress-evoked sterile inflammation in plasma and adipose. Adult male F344 rats were either randomized to ad libitum access to food or fasted for 24 h prior to 0 (control), 10, or 100, 1.5 mA-5 s intermittent, inescapable tail shocks (IS). Glucose, nonesterified free fatty acids (NEFAs), insulin, leptin, and corticosterone were measured in plasma and tumor necrosis factor- (TNF-) α, interleukin- (IL-) 1β, IL-6, and IL-10 in plasma, and subcutaneous, intraperitoneal, and visceral compartments of white adipose tissue (WAT). In control rats, a 24 h fast reduced all measured basal cytokines in plasma and visceral WAT, IL-1β and IL-6 in subcutaneous WAT, and IL-6 in intraperitoneal WAT. In stressed rats (IS), fasting reduced visceral WAT TNF-α, subcutaneous WAT IL-1β, and plasma insulin and leptin. Short-term fasting may thus prove to be a useful dietary strategy for reducing peripheral inflammatory states associated with visceral obesity and chronic stress.
Collapse
|
16
|
Yamamoto M, Yamamoto K, Taketomi H, Yamamoto F, Yamamoto H. Obscure Gastrointestinal Bleeding Due to a Small Intestinal Gastrointestinal Stromal Tumor in a Young Adult. Case Rep Gastroenterol 2016; 10:668-673. [PMID: 27920659 PMCID: PMC5126590 DOI: 10.1159/000452207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 10/03/2016] [Indexed: 12/18/2022] Open
Abstract
The source of most cases of gastrointestinal bleeding is the upper gastrointestinal tract. Since bleeding from the small intestine is very rare and difficult to diagnose, time is required to identify the source. Among small intestine bleeds, vascular abnormalities account for 70-80%, followed by small intestine tumors that account for 5-10%. The reported peak age of the onset of small intestinal tumors is about 50 years. Furthermore, rare small bowel tumors account for only 1-2% of all gastrointestinal tumors. We describe a 29-year-old man who presented with obscure anemia due to gastrointestinal bleeding and underwent laparotomy. Surgical findings revealed a well-circumscribed lesion measuring 45 × 40 mm in the jejunum that initially appeared similar to diverticulosis with an abscess. However, the postoperative pathological diagnosis was a gastrointestinal stromal tumor with extramural growth.
Collapse
Affiliation(s)
- Mami Yamamoto
- Department of Surgery, Yamamoto Memorial Hospital, Imari, Japan
| | | | | | - Fumio Yamamoto
- Department of Surgery, Yamamoto Memorial Hospital, Imari, Japan
| | | |
Collapse
|
17
|
Sochocka M, Diniz BS, Leszek J. Inflammatory Response in the CNS: Friend or Foe? Mol Neurobiol 2016; 54:8071-8089. [PMID: 27889895 PMCID: PMC5684251 DOI: 10.1007/s12035-016-0297-1] [Citation(s) in RCA: 334] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/09/2016] [Indexed: 12/19/2022]
Abstract
Inflammatory reactions could be both beneficial and detrimental to the brain, depending on strengths of their activation in various stages of neurodegeneration. Mild activation of microglia and astrocytes usually reveals neuroprotective effects and ameliorates early symptoms of neurodegeneration; for instance, released cytokines help maintain synaptic plasticity and modulate neuronal excitability, and stimulated toll-like receptors (TLRs) promote neurogenesis and neurite outgrowth. However, strong activation of glial cells gives rise to cytokine overexpression/dysregulation, which accelerates neurodegeneration. Altered mutual regulation of p53 protein, a major tumor suppressor, and NF-κB, the major regulator of inflammation, seems to be crucial for the shift from beneficial to detrimental effects of neuroinflammatory reactions in neurodegeneration. Therapeutic intervention in the p53-NF-κB axis and modulation of TLR activity are future challenges to cope with neurodegeneration.
Collapse
Affiliation(s)
- Marta Sochocka
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Breno Satler Diniz
- Department of Psychiatry and Behavioral Sciences, and The Consortium on Aging, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jerzy Leszek
- Department of Psychiatry, Wroclaw Medical University, Wybrzeże L. Pasteura 10, 50-367, Wroclaw, Poland.
| |
Collapse
|
18
|
Molanouri Shamsi M, Mahdavi M, Quinn LS, Gharakhanlou R, Isanegad A. Effect of resistance exercise training on expression of Hsp70 and inflammatory cytokines in skeletal muscle and adipose tissue of STZ-induced diabetic rats. Cell Stress Chaperones 2016; 21:783-91. [PMID: 27245165 PMCID: PMC5003795 DOI: 10.1007/s12192-016-0703-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/13/2016] [Accepted: 05/17/2016] [Indexed: 11/26/2022] Open
Abstract
Impairment of adipose tissue and skeletal muscles accrued following type 1 diabetes is associated with protein misfolding and loss of adipose mass and skeletal muscle atrophy. Resistance training can maintain muscle mass by changing both inflammatory cytokines and stress factors in adipose tissue and skeletal muscle. The purpose of this study was to determine the effects of a 5-week ladder climbing resistance training program on the expression of Hsp70 and inflammatory cytokines in adipose tissue and fast-twitch flexor hallucis longus (FHL) and slow-twitch soleus muscles in healthy and streptozotocin-induced diabetic rats. Induction of diabetes reduced body mass, while resistance training preserved FHL muscle weight in diabetic rats without any changes in body mass. Diabetes increased Hsp70 protein content in skeletal muscles, adipose tissue, and serum. Hsp70 protein levels were decreased in normal and diabetic rats by resistance training in the FHL, but not soleus muscle. Furthermore, resistance training decreased inflammatory cytokines in FHL skeletal muscle. On the other hand, Hsp70 and inflammatory cytokine protein levels were increased by training in adipose tissue. Also, significant positive correlations between inflammatory cytokines in adipose tissue and skeletal muscles with Hsp70 protein levels were observed. In conclusion, we found that in diabetic rats, resistance training decreased inflammatory cytokines and Hsp70 protein levels in fast skeletal muscle, increased adipose tissue inflammatory cytokines and Hsp70, and preserved FHL muscle mass. These results suggest that resistance training can maintain skeletal muscle mass in diabetes by changing inflammatory cytokines and stress factors such as Hsp70 in skeletal muscle and adipose tissue.
Collapse
Affiliation(s)
- M Molanouri Shamsi
- Physical Education and Sport Sciences Dept., Faculty of Humanities, Tarbiat Modares University, Jala Ale Ahmad Exp., P.O.Box: 14117-13116, Tehran, Iran.
| | - M Mahdavi
- Immunology Department, Pasteur Institute of Iran, 69 Pasteur Ave, Tehran, Iran
| | - L S Quinn
- Research Service, VA Puget Sound Health Care System, and Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, 98108, USA
| | - R Gharakhanlou
- Physical Education and Sport Sciences Dept., Faculty of Humanities, Tarbiat Modares University, Jala Ale Ahmad Exp., P.O.Box: 14117-13116, Tehran, Iran
| | - A Isanegad
- Physical Education and Sport Sciences Dept., Faculty of Humanities, Shahed University, P.O.Box: 14117-13116, Tehran, I.R., Iran
- Immunoregulation Research Center, Shahed University, P.O.Box: 14117-13116, Tehran, I.R., Iran
| |
Collapse
|
19
|
Abstract
Acute diverticulitis, defined as acute inflammation of a colonic diverticulum, is a common emergency presentation managed by both surgeons and physicians. There have been advances in the medical treatments offered to patients in recent years. Factors predisposing individuals to the development of acute diverticulitis include obesity, smoking, lack of physical activity and medication use, such as NSAIDs. Although widely used, there is limited evidence on the efficacy of individual antibiotic regimens and antibiotic treatment may not be required in all patients. Mesalazine seems to be the only effective treatment for the primary prevention of acute diverticulitis. Finally, evidence of effective measures for the prevention of recurrence is lacking. Furthermore, high-quality randomized controlled trials are required for medical treatments in patients with acute diverticulitis, if management is to be evidence based.
Collapse
Affiliation(s)
- Antonio Tursi
- a Gastroenterology Service, ASL BAT, Andria, BT, Italy
| |
Collapse
|
20
|
Abstract
Diverticulosis of the colon is a widespread disease, and its prevalence is increasing especially in the developing world. The underlying pathological mechanisms that cause the formation of colonic diverticula remain unclear but are likely to be the result of complex interactions among age, diet, genetic factors, colonic motility, and changes in colonic structure. The large majority of patients remain asymptomatic throughout their life, one fifth of them become symptomatic (developing the so-called 'diverticular disease') while only a minority of these will develop acute diverticulitis. The factors predicting the development of symptoms remain to be identified. Again, it is generally recognized that diverticular disease occurrence is probably related to complex interactions among colonic motility, diet, lifestyle, and genetic features. Changes in intestinal microflora due to low-fiber diet and consequent low-grade inflammation are thought to be one of the mechanisms responsible for symptoms occurrence of both diverticular disease and acute diverticulitis. Current therapeutic approaches with rifaximin and mesalazine to treat the symptoms seem to be promising. Antibiotic treatment is currently advised only in acute complicated diverticulitis, and no treatment has currently proven effective in preventing the recurrence of acute diverticulitis. Further studies are required in order to clarify the reasons why diverticulosis occurs and the factors triggering occurrence of symptoms. Moreover, the reasons why rifaximin and mesalazine work in symptomatic diverticular disease but not in acute diverticulitis are yet to be elucidated.
Collapse
Affiliation(s)
- Antonio Tursi
- Gastroenterology Service, ASL BAT, Via Torino, 49, 76123 Andria (BT), Italy
| |
Collapse
|
21
|
Tursi A, Papa A, Danese S. Review article: the pathophysiology and medical management of diverticulosis and diverticular disease of the colon. Aliment Pharmacol Ther 2015. [PMID: 26202723 DOI: 10.1111/apt.13322] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The incidence of diverticulosis and diverticular disease of the colon, including diverticulitis, is increasing worldwide, and becoming a significant burden on national health systems. Treatment of patients with diverticulosis and DD is generally based on high-fibre diet and antibiotics, respectively. However, new pathophysiological knowledge suggests that further treatment may be useful. AIM To review the current treatment of diverticulosis and diverticular disease. METHODS A search of PubMed and Medline databases was performed to identify articles relevant to the management of diverticulosis and diverticular disease. Major international conferences were also reviewed. RESULTS Two randomised controlled trials (RCT) found the role of antibiotics in managing acute diverticulitis to be questionable, particularly in patients with no complicating comorbidities. One RCT found mesalazine to be effective in preventing acute diverticulitis in patients with symptomatic uncomplicated diverticular disease. The role of rifaximin or mesalazine in preventing diverticulitis recurrence, based on the results of 1 and 4 RCTs, respectively, remains unclear. RCTs found rifaximin and mesalazine to be effective in treating symptomatic uncomplicated diverticular disease. The use of probiotics in diverticular disease and in preventing acute diverticulitis occurrence/recurrence appears promising but unconclusive. Finally, the role of fibre in treating diverticulosis remains unclear. CONCLUSIONS Available evidence suggests that antibiotics have a role only in the treatment of complicated diverticulitis. It appears to be some evidence for a role for rifaximin and mesalazine in treating symptomatic uncomplicated diverticular disease. Finally, there is not currently adequate evidence to recommend any medical treatment for the prevention of diverticulitis recurrence.
Collapse
Affiliation(s)
- A Tursi
- Gastroenterology Service, ASL BAT, Andria, BT, Italy
| | - A Papa
- Division of Internal Medicine and Gastroenterology, Complesso Integrato "Columbus", Catholic University, Rome, Italy
| | - S Danese
- IBD Unit, IRCCS "Humanitas", Rozzano, MI, Italy
| |
Collapse
|
22
|
Pietrzak A, Bartnik W, Szczepkowski M, Krokowicz P, Dziki A, Reguła J, Wallner G. Polish interdisciplinary consensus on diagnostics and treatment of colonic diverticulosis (2015). POLISH JOURNAL OF SURGERY 2015; 87:203-20. [DOI: 10.1515/pjs-2015-0045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Indexed: 11/15/2022]
|
23
|
Scherer M, Montoliu I, Qanadli SD, Collino S, Rezzi S, Kussmann M, Giusti V, Martin FPJ. Blood plasma lipidomic signature of epicardial fat in healthy obese women. Obesity (Silver Spring) 2015; 23:130-7. [PMID: 25400283 DOI: 10.1002/oby.20925] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 09/18/2014] [Indexed: 11/11/2022]
Abstract
OBJECTIVES A lipidomic approach was employed in a clinically well-defined cohort of healthy obese women to explore blood lipidome phenotype ascribed to body fat deposition, with emphasis on epicardial adipose tissue (EAT). METHODS The present investigation delivered a lipidomics signature of epicardial adiposity under healthy clinical conditions using a cohort of 40 obese females (age: 25-45 years, BMI: 28-40 kg/m(2) ) not showing any metabolic disease traits. Lipidomics analysis of blood plasma was employed in combination with in vivo quantitation of mediastinal fat depots by computerized tomography. RESULTS All cardiac fat depots correlated to indicators of hepatic dysfunctions (ALAT and ASAT), which describe physiological connections between hepatic and cardiac steatosis. Plasma lipidomics encompassed overall levels of lipid classes, fatty acid profiles, and individual lipid species. EAT and visceral fat associated with diacylglycerols (DAG), triglycerides, and distinct phospholipid and sphingolipid species. A pattern of DAG and phosphoglycerols was specific to EAT. CONCLUSIONS Human blood plasma lipidomics appears to be a promising clinical and potentially diagnostic readout for patient stratification and monitoring. Association of blood lipidomics signature to regio-specific mediastinal and visceral adiposity under healthy clinical conditions may help provide more biological insights into obese patient stratification for cardiovascular disease risks.
Collapse
Affiliation(s)
- Max Scherer
- Nestlé Institute of Health Sciences SA, Lausanne, Switzerland
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Speaker KJ, Cox SS, Paton MM, Serebrakian A, Maslanik T, Greenwood BN, Fleshner M. Six weeks of voluntary wheel running modulates inflammatory protein (MCP-1, IL-6, and IL-10) and DAMP (Hsp72) responses to acute stress in white adipose tissue of lean rats. Brain Behav Immun 2014; 39:87-98. [PMID: 24246250 PMCID: PMC4301739 DOI: 10.1016/j.bbi.2013.10.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 10/01/2013] [Accepted: 10/25/2013] [Indexed: 12/12/2022] Open
Abstract
To prime local tissues for dealing with potential infection or injury, exposure to an acute, intense stressor evokes increases in circulating and local tissue inflammatory proteins. Regular physical activity facilitates stress-evoked innate reactivity and modulates the expression of inflammatory proteins in immuno-metabolic tissues such as white adipose tissue (WAT). The impact of regular physical activity on stress-evoked inflammatory protein expression in WAT, however, remains unclear. To investigate this question, lean male F344 rats (150-175g) were allowed voluntary access to a running wheel for 6weeks followed by exposure to an acute stressor (100, 1.5mA-5s inescapable tail shocks). Using ELISAs, corticosterone, heat shock protein 72 (Hsp72), macrophage chemoattractant protein (MCP-1), tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1β, IL-6, and IL-10 concentrations were measured in plasma and subcutaneous, intraperitoneal (epididymal and retroperitoneal WAT depots) and visceral (omental and mesenteric WAT depots) WAT compartments. Acute stress increased plasma concentrations of all proteins except TNF-α and, depending upon the compartment examined, WAT concentrations of MCP-1, IL-1β, IL-6, and IL-10. Exercise ubiquitously increased IL-1β within WAT, potentiated stress-evoked Hsp72 in plasma and WAT, and differentially increased stress-evoked MCP-1, IL-6, and IL-10 within WAT. These data suggest: (a) inflammatory proteins in non-obese WAT may serve compartment-specific immune and metabolic roles important to the acute stress response and; (b) voluntary habitual exercise may optimize stress-induced augmentation of innate immune function through increases in stress-evoked Hsp72, MCP-1, IL-6, and IL-10 and decreases in IL-1β/IL10 and TNF-α/IL10 ratios within white adipose tissue.
Collapse
Affiliation(s)
- Kristin J. Speaker
- Department of Integrative Physiology, University of Colorado at Boulder, USA
| | - Stewart S. Cox
- Department of Integrative Physiology, University of Colorado at Boulder, USA
| | - Madeline M. Paton
- Department of Integrative Physiology, University of Colorado at Boulder, USA
| | - Arman Serebrakian
- Department of Integrative Physiology, University of Colorado at Boulder, USA
| | - Thomas Maslanik
- Department of Integrative Physiology, University of Colorado at Boulder, USA
| | - Benjamin N. Greenwood
- Department of Integrative Physiology, University of Colorado at Boulder, USA, Center for Neuroscience, University of Colorado at Boulder, USA
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado at Boulder, USA; Center for Neuroscience, University of Colorado at Boulder, USA.
| |
Collapse
|
25
|
Drackley JK, Wallace RL, Graugnard D, Vasquez J, Richards BF, Loor JJ. Visceral adipose tissue mass in nonlactating dairy cows fed diets differing in energy density(1). J Dairy Sci 2014; 97:3420-30. [PMID: 24704224 DOI: 10.3168/jds.2014-8014] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 02/16/2014] [Indexed: 12/12/2022]
Abstract
Our objective was to determine dietary energy effects on feed intake, internal fat deposition, body condition score (BCS), visceral organ mass, and blood analytes in Holstein cows. Eighteen nonpregnant, nonlactating cows (BCS = 3.04 ± 0.25) were blocked based on initial BCS and were randomly assigned within each block to 2 treatments. Treatments were either high energy [HE; net energy for lactation (NEL)=1.62 Mcal/kg] or low energy (LE; NEL = 1.35 Mcal/kg) diets fed as total mixed rations for 8 wk. The LE diet consisted of 81.7% forage, including 40.5% wheat straw and 28.3% corn silage, whereas the HE diet contained 73.8% forage with no straw and 49.9% corn silage (dry matter basis). Cows were fed for ad libitum intake once daily at 0800 h. Feed intake was recorded daily, blood was sampled at wk 1, 4, and 7, and BCS was assigned at wk 1, 4, and 7. Cows were killed following the 8-wk period, and visceral organs, mammary gland, and internal adipose tissues were weighed and sampled. The HE group had greater dry matter intake (15.9 vs. 11.2 ± 0.5 kg/d) and energy intakes than cows fed LE, but neutral detergent fiber intake did not differ (5.8 vs. 5.6 ± 0.25 kg/d for HE and LE). Final body weight was greater for cows fed HE (807 vs. 750 kg), but BCS did not differ between groups (3.52 vs. 3.47 for HE and LE). Omental (26.8 vs. 15.2 ± 1.6 kg/d), mesenteric (21.5 vs. 11.2 ± 1.9 kg), and perirenal (8.9 vs. 5.4 ± 0.9 kg) adipose tissue masses were larger in HE cows than in LE cows. Although subcutaneous adipose mass was not measured, carcass weight (including hide and subcutaneous fat) did not differ between HE (511 kg) and LE (496 kg). Liver weight tended to be greater for cows fed HE, but weights of gastrointestinal tract, heart, and kidney did not differ. Serum insulin tended to be greater and the glucose to insulin ratio was lower for cows fed HE. Serum concentrations of β-hydroxybutyrate and cholesterol were greater for HE cows than for LE cows but concentrations of glucose, nonesterified fatty acids, total protein, and albumin did not differ. Final BCS was correlated with masses of omental (r = 0.57), mesenteric (r = 0.59), and perirenal (r = 0.72) adipose tissue, but mesenteric adipose mass increased more as BCS increased for cows fed HE. The similar final BCS between HE and LE cows demonstrates that BCS may lack sensitivity to detect differences in visceral fat deposition that might increase risk for peripartal diseases and disorders.
Collapse
Affiliation(s)
- J K Drackley
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - R L Wallace
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana 61801
| | - D Graugnard
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - J Vasquez
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - B F Richards
- Department of Animal Sciences, University of Illinois, Urbana 61801
| | - J J Loor
- Department of Animal Sciences, University of Illinois, Urbana 61801
| |
Collapse
|
26
|
Rana KS, Arif M, Hill EJ, Aldred S, Nagel DA, Nevill A, Randeva HS, Bailey CJ, Bellary S, Brown JE. Plasma irisin levels predict telomere length in healthy adults. AGE (DORDRECHT, NETHERLANDS) 2014; 36:995-1001. [PMID: 24469890 PMCID: PMC4039281 DOI: 10.1007/s11357-014-9620-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 01/15/2014] [Indexed: 05/30/2023]
Abstract
The ageing process is strongly influenced by nutrient balance, such that modest calorie restriction (CR) extends lifespan in mammals. Irisin, a newly described hormone released from skeletal muscles after exercise, may induce CR-like effects by increasing adipose tissue energy expenditure. Using telomere length as a marker of ageing, this study investigates associations between body composition, plasma irisin levels and peripheral blood mononuclear cell telomere length in healthy, non-obese individuals. Segmental body composition (by bioimpedance), telomere length and plasma irisin levels were assessed in 81 healthy individuals (age 43 ± 15.8 years, BMI 24.3 ± 2.9 kg/m(2)). Data showed significant correlations between log-transformed relative telomere length and the following: age (p < 0.001), height (p = 0.045), total body fat percentage (p = 0.031), abdominal fat percentage (p = 0.038), visceral fat level (p < 0.001), plasma leptin (p = 0.029) and plasma irisin (p = 0.011), respectively. Multiple regression analysis using backward elimination revealed that relative telomere length can be predicted by age (b = -0.00735, p = 0.001) and plasma irisin levels (b = 0.04527, p = 0.021). These data support the view that irisin may have a role in the modulation of both energy balance and the ageing process.
Collapse
Affiliation(s)
- Karan S. Rana
- Aston Research Centre for Healthy Ageing and School of Life and Health Sciences, Aston University, Birmingham, B4 7ET UK
| | - Muhammad Arif
- School of Life and Health Science, Aston University, Birmingham, B4 7ET UK
| | - Eric J. Hill
- Aston Research Centre for Healthy Ageing and School of Life and Health Sciences, Aston University, Birmingham, B4 7ET UK
| | - Sarah Aldred
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT UK
| | - David A. Nagel
- School of Life and Health Science, Aston University, Birmingham, B4 7ET UK
| | - Alan Nevill
- School of Sport, Performing Arts and Leisure, University of Wolverhampton, Walsall, WS1 3BD UK
| | - Harpal S. Randeva
- Metabolic & Vascular Health, Warwick Medical School, Warwick University, Coventry, CV2 2DX UK
| | - Clifford J. Bailey
- School of Life and Health Science, Aston University, Birmingham, B4 7ET UK
| | - Srikanth Bellary
- Aston Research Centre for Healthy Ageing and School of Life and Health Sciences, Aston University, Birmingham, B4 7ET UK
| | - James E. Brown
- Aston Research Centre for Healthy Ageing and School of Life and Health Sciences, Aston University, Birmingham, B4 7ET UK
| |
Collapse
|
27
|
Tursi A. New physiopathological and therapeutic approaches to diverticular disease: an update. Expert Opin Pharmacother 2014; 15:1005-17. [PMID: 24684571 DOI: 10.1517/14656566.2014.903922] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Diverticular disease (DD) of the colon is a widespread disease, which shows worldwide increasing incidence and represents a significant burden for National Health Systems. The current guidelines claim that symptomatic uncomplicated DD (SUDD) has to be treated with spasmolithics and high-fiber diet, whereas both uncomplicated and complicated acute diverticulitis has to be treated with antibiotics. However, new physiopathological knowledge suggests that further treatment may be promising. AREAS COVERED Pathogenetic and treatment studies on SUDD and acute diverticulitis published in PubMed, www.clinicaltrials.gov , and in the main International Congress were reviewed. EXPERT OPINION Although absorbable antibiotics and 5-aminosalycilic acid seem to be effective in treating SUDD, their role in preventing diverticulitis recurrence is still under debate. Antibiotic use in managing acute diverticulitis is at least questionable, and use of probiotics seems to be promising but need further robust studies to confirm the preliminary results.
Collapse
Affiliation(s)
- Antonio Tursi
- Gastroenterology Service, ASL BAT , Via Torino 49, 76123 Andria (BT) , Italy +39 0883 551094 ; +39 0883 1978210 ;
| |
Collapse
|
28
|
Dutra LP, Cisneiros RM, Souza AS, Diniz CP, Moura LA, Figueiroa JN, Alves JGB. Longitudinal variance of visceral fat thickness in pregnant adolescents. Aust N Z J Obstet Gynaecol 2014; 54:91-3. [DOI: 10.1111/ajo.12167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 11/08/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Luciana P. Dutra
- Department of Nursery Education; Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina; Petrolina Brazil
| | - Rosangela M. Cisneiros
- Endocrinology and Diabetes Unit; Universidade Federal do Vale do São Francisco (UNIVASF); Petrolina Brazil
| | - Alex S. Souza
- Department of Fetal Medicine; Instituto de Medicina Integral Prof. Fernando Figueira (IMIP); Recife Brazil
| | | | - Laísla A. Moura
- Department of Nursery Education; Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina; Petrolina Brazil
| | - Jose N. Figueiroa
- Department of Biostatistics; Instituto de Medicina Integral Prof. Fernando Figueira (IMIP); Recife Brazil
| | - João G. B. Alves
- Department of Pediatrics; Instituto de Medicina Integral Prof. Fernando Figueira (IMIP); Recife Brazil
| |
Collapse
|
29
|
Urbanová M, Dostálová I, Trachta P, Drápalová J, Kaválková P, Haluzíková D, Matoulek M, Lacinová Z, Mráz M, Kasalický M, Haluzík M. Serum concentrations and subcutaneous adipose tissue mRNA expression of omentin in morbid obesity and type 2 diabetes mellitus: the effect of very-low-calorie diet, physical activity and laparoscopic sleeve gastrectomy. Physiol Res 2014; 63:207-18. [PMID: 24397804 DOI: 10.33549/physiolres.932530] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Omentin is a novel adipokine with insulin-sensitizing effects expressed predominantly in visceral fat. We investigated serum omentin levels and its mRNA expression in subcutaneous adipose tissue (SCAT) of 11 women with type 2 diabetes mellitus (T2DM), 37 obese non-diabetic women (OB) and 26 healthy lean women (C) before and after various weight loss interventions: 2-week very-low-calorie diet (VLCD), 3-month regular exercise and laparoscopic sleeve gastrectomy (LSG). At baseline, both T2DM and OB groups had decreased serum omentin concentrations compared with C group while omentin mRNA expression in SCAT did not significantly differ among the groups. Neither VLCD nor exercise significantly affected serum omentin concentrations and its mRNA expression in SCAT of OB or T2DM group. LSG significantly increased serum omentin levels in OB group. In contrast, omentin mRNA expression in SCAT was significantly reduced after LSG. Baseline fasting serum omentin levels in a combined group of the studied subjects (C, OB, T2DM) negatively correlated with BMI, CRP, insulin, LDL-cholesterol, triglycerides and leptin and were positively related to HDL-cholesterol. Reduced circulating omentin levels could play a role in the etiopathogenesis of obesity and T2DM. The increase in circulating omentin levels and the decrease in omentin mRNA expression in SCAT of obese women after LSG might contribute to surgery-induced metabolic improvements and sustained reduction of body weight.
Collapse
Affiliation(s)
- M Urbanová
- Third Department of Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Harlev A, Aricha-Tamir B, Shaco-Levy R, Tarnovscki T, Bashan N, Rudich A, Sheiner E, Press F, Wiznitzer A. Macrophage infiltration and stress-signaling in omental and subcutaneous adipose tissue in diabetic pregnancies. J Matern Fetal Neonatal Med 2013; 27:1189-94. [PMID: 24111719 DOI: 10.3109/14767058.2013.853734] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To examine if, as in obesity, pregnancies complicated by gestational diabetes mellitus (GDM) exhibit increased macrophage infiltration and activated MAP-kinases in omental adipose tissue. METHODS Paired omental (OM) and abdominal subcutaneous (SC) fat samples were collected from 11 GDM and 20 normal pregnancies during cesarean delivery. Tissues were stained to detect macrophages, and analyzed to assess MAP-kinases. RESULTS OM had higher macrophage counts than SC in GDM (6.10 ± 2.20 versus 2.53 ± 1.45, p = 0.04), but not in normal pregnancies (p = 0.346). GDM pregnancies had more macrophages than normal pregnancies in OM (6.10 ± 2.20 versus 1.29 ± 0.55, p = 0.01), while only a trend was observed in SC fat (p = 0.08). Significant correlation (R = 0.619, p = 0.005) was observed between OM-macrophage infiltration and insulin resistance. Using multivariate analysis, only obesity independently associated with GDM. Expression of total p38MAP-kinase was higher in OM versus SC in both normal and GDM pregnancies, without significant differences between these groups. However, expression of activated p-p38MAP-kinase, and its upstream kinase MKK4, was comparable between fat depots. CONCLUSION GDM pregnancies demonstrate increased macrophage infiltration to OM fat, correlating with higher insulin resistance. As in non-pregnant-patients obesity and OM macrophage infiltration may be on the same causal pathway, leading to GDM. Yet, this occurs without activation of p38MAP-kinase signaling.
Collapse
|
31
|
Tursi A. Preventing recurrent acute diverticulitis with pharmacological therapies. Ther Adv Chronic Dis 2013; 4:277-86. [PMID: 24179670 DOI: 10.1177/2040622313498809] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acute diverticulitis of the colon represents a significant burden for national health systems, in terms of direct and indirect costs. Past guidelines claimed that recurrent episodes (two or more) of diverticulitis need surgery, but revised guidelines recommend an individualized approach to patients after an attack of acute diverticulitis. For these reasons, conservative treatment has become the preferred choice after an episode of diverticulitis. Thus, significant efforts are now being focused to identify the correct therapeutic approach to prevent diverticulitis relapses. Nonabsorbable antibiotics, 5-aminosalicylic acid and probiotics are currently being investigated in this way. The effectiveness and the future perspectives of these treatments are discussed herein.
Collapse
Affiliation(s)
- Antonio Tursi
- Gastroenterology Service, ASL BAT, Via Torino 49, 76123 Andria (BT), Italy
| |
Collapse
|
32
|
Zhao J, Lawless MW. Stop feeding cancer: pro-inflammatory role of visceral adiposity in liver cancer. Cytokine 2013; 64:626-37. [PMID: 24120848 DOI: 10.1016/j.cyto.2013.09.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 08/12/2013] [Accepted: 09/06/2013] [Indexed: 02/06/2023]
Abstract
Liver cancer is the fifth most common cancer in the world with an estimated over half a million new cases diagnosed every year. Due to the difficulty in early diagnosis and lack of treatment options, the prevalence of liver cancer continues to climb with a 5-year survival rate of between 6% and 11%. Coinciding with the rise of liver cancer, the prevalence of obesity has rapidly increased over the past two decades. Evidence from epidemiological studies demonstrates a higher risk of hepatocellular carcinoma (HCC) in obese individuals. Obesity is recognised as a low-grade inflammatory disease, this is of particular relevance as inflammation has been proposed as the seventh hallmark of cancer development with abdominal visceral adiposity considered as an important source of pro-inflammatory stimuli. Emerging evidence points towards the direct role of visceral adipose tissue rather than generalised body fat in carcinogenesis. Cytokines such as IL-6 and TNF-α secreted from visceral adipose tissue have been demonstrated to induce a chronic inflammatory condition predisposing the liver to a protumourigenic milieu. This review focuses on excess visceral adiposity rather than simple obesity; particularly adipokines and their implications for chronic inflammation, lipid accumulation, insulin resistance, Endoplasmic Reticulum (ER) stress and angiogenesis. Evidence of molecular signalling pathways that may give rise to the onset and progression of HCC in this context are depicted. Delineation of the pro-inflammatory role of visceral adiposity in liver cancer and its targeting will provide better rational and therapeutic approaches for HCC prevention and elimination. The concept of a central role for metabolism in cancer is the culmination of an effort that began with one of the 20th century's leading biochemists and Nobel laureate of 1931, Otto Warburg.
Collapse
Affiliation(s)
- Jun Zhao
- Experimental Medicine, UCD School of Medicine and Medical Science, Mater Misericordiae University Hospital, Dublin 7, Ireland
| | | |
Collapse
|
33
|
Company JM, Roberts MD, Toedebusch RG, Cruthirds CL, Booth FW. Sudden decrease in physical activity evokes adipocyte hyperplasia in 70- to 77-day-old rats but not 49- to 56-day-old rats. Am J Physiol Regul Integr Comp Physiol 2013; 305:R1465-78. [PMID: 24089381 DOI: 10.1152/ajpregu.00139.2013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The cessation of physical activity in rodents and humans initiates obesogenic mechanisms. The overall purpose of the current study was to determine how the cessation of daily physical activity in rats at 49-56 days of age and at 70-77 days of age via wheel lock (WL) affects adipose tissue characteristics. Male Wistar rats began voluntary running at 28 days old and were either killed at 49-56 days old or at 70-77 days old. Two cohorts of rats always had wheel access (RUN), a second two cohorts of rats had wheel access restricted during the last 7 days (7d-WL), and a third two cohorts of rats did not have access to a voluntary running wheel after the first 6 days of (SED). We observed more robust changes with WL in the 70- to 77-day-old rats. Compared with RUN rats, 7d-WL rats exhibited greater rates of gain in fat mass and percent body fat, increased adipocyte number, higher percentage of small adipocytes, and greater cyclin A1 mRNA in epididymal and perirenal adipose tissue. In contrast, 49- to 56-day-old rats had no change in most of the same characteristics. There was no increase in inflammatory mRNA expression in either cohort with WL. These findings suggest that adipose tissue in 70- to 77-day-old rats is more protected from WL than 49- to 56-day-old rats and responds by expansion via hyperplasia.
Collapse
Affiliation(s)
- Joseph M Company
- Department of Biomedical Science, College of Veterinary Medicine, University of Missouri, Columbia, Missouri
| | | | | | | | | |
Collapse
|
34
|
Martin FPJ, Montoliu I, Collino S, Scherer M, Guy P, Tavazzi I, Thorimbert A, Moco S, Rothney MP, Ergun DL, Beaumont M, Ginty F, Qanadli SD, Favre L, Giusti V, Rezzi S. Topographical body fat distribution links to amino acid and lipid metabolism in healthy obese women [corrected]. PLoS One 2013; 8:e73445. [PMID: 24039943 PMCID: PMC3770640 DOI: 10.1371/journal.pone.0073445] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 07/23/2013] [Indexed: 11/19/2022] Open
Abstract
Visceral adiposity is increasingly recognized as a key condition for the development of obesity related disorders, with the ratio between visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) reported as the best correlate of cardiometabolic risk. In this study, using a cohort of 40 obese females (age: 25–45 y, BMI: 28–40 kg/m2) under healthy clinical conditions and monitored over a 2 weeks period we examined the relationships between different body composition parameters, estimates of visceral adiposity and blood/urine metabolic profiles. Metabonomics and lipidomics analysis of blood plasma and urine were employed in combination with in vivo quantitation of body composition and abdominal fat distribution using iDXA and computerized tomography. Of the various visceral fat estimates, VAT/SAT and VAT/total abdominal fat ratios exhibited significant associations with regio-specific body lean and fat composition. The integration of these visceral fat estimates with metabolic profiles of blood and urine described a distinct amino acid, diacyl and ether phospholipid phenotype in women with higher visceral fat. Metabolites important in predicting visceral fat adiposity as assessed by Random forest analysis highlighted 7 most robust markers, including tyrosine, glutamine, PC-O 44∶6, PC-O 44∶4, PC-O 42∶4, PC-O 40∶4, and PC-O 40∶3 lipid species. Unexpectedly, the visceral fat associated inflammatory profiles were shown to be highly influenced by inter-days and between-subject variations. Nevertheless, the visceral fat associated amino acid and lipid signature is proposed to be further validated for future patient stratification and cardiometabolic health diagnostics.
Collapse
Affiliation(s)
- Francois-Pierre J. Martin
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
- * E-mail: (FPJM); (SR)
| | - Ivan Montoliu
- Applied Mathematics, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Sebastiano Collino
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Max Scherer
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Philippe Guy
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Isabelle Tavazzi
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Anita Thorimbert
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Sofia Moco
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Megan P. Rothney
- Diagnostics and Biomedical Technology Organization, GE Global Research Center, Niskayuna, New York, United States of America
| | - David L. Ergun
- GE Healthcare, Madison, Wisconsin, United States of America
| | - Maurice Beaumont
- Clinical Development Unit, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
| | - Fiona Ginty
- GE Healthcare, Madison, Wisconsin, United States of America
| | - Salah D. Qanadli
- Cardiothoracic and Vascular Unit, Department of Radiology, University Hospital of Lausanne, Lausanne, Switzerland
| | - Lucie Favre
- Service of Endocrinology, Diabetology and Metabolism, Department of Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Vittorio Giusti
- Service of Endocrinology, Diabetology and Metabolism, Department of Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - Serge Rezzi
- Metabolomics and Biomarkers, Nestec Ltd., Nestle Research Center, Lausanne, Switzerland
- * E-mail: (FPJM); (SR)
| |
Collapse
|
35
|
Tursi A. Mesalazine in treating diverticular disease of the colon. Expert Rev Gastroenterol Hepatol 2013; 7:409-12. [PMID: 23899280 DOI: 10.1586/17474124.2013.811029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Evaluation of: Kruis W, Meier E, Schumacher M, Mickisch O, Greinwald R, Mueller R; German SAG-20 Study Group. Randomised clinical trial: mesalazine (Salofalk granules) for uncomplicated diverticular disease of the colon - a placebo-controlled study. Aliment. Pharmacol. Ther. 37(7), 680-690 (2013). Although diverticular disease (DD) is one of the commonest diseases in the western world, robust evidences about its treatment are lack so far. A recent, placebo-controlled study found mesalazine effective in obtaining pain relief in patients suffering from DD. A brief comment is provided herein in order to assess the rationale of this drug in treating DD.
Collapse
Affiliation(s)
- Antonio Tursi
- Gastroenterology Service, ASL BAT, Andria (BT), Italy.
| |
Collapse
|