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Saiki A, Takahashi Y, Nakamura S, Yamaoka S, Abe K, Tanaka S, Watanabe Y, Yamaguchi T, Nagayama D, Ohira M, Oshiro T, Tatsuno I, Shirai K. Relationship between Lipoprotein Lipase Derived from Subcutaneous Adipose Tissue and Cardio-Ankle Vascular Index in Japanese Patients with Severe Obesity. Obes Facts 2024; 17:255-263. [PMID: 38342095 PMCID: PMC11149971 DOI: 10.1159/000537687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 01/24/2024] [Indexed: 02/13/2024] Open
Abstract
INTRODUCTION Cardio-ankle vascular index (CAVI) is an arterial stiffness index that correlates inversely with body mass index (BMI) and subcutaneous fat area. Lipoprotein lipase (LPL) that catalyzes the hydrolysis of serum triglycerides is produced mainly in adipocytes. Serum LPL mass reflects LPL expression in adipose tissue, and its changes correlate inversely with changes in CAVI. We hypothesized that LPL derived from subcutaneous adipose tissue (SAT) suppresses the progression of arteriosclerosis and examined the relationship of LPL gene expression in different adipose tissues and serum LPL mass with CAVI in Japanese patients with severe obesity undergoing laparoscopic sleeve gastrectomy (LSG). METHODS This study was a single-center retrospective database analysis. Fifty Japanese patients who underwent LSG and had 1-year postoperative follow-up data were enrolled (mean age 47.5 years, baseline BMI 46.6 kg/m2, baseline HbA1c 6.7%). SAT and visceral adipose tissue (VAT) samples were obtained during LSG surgery. LPL gene expression was analyzed by real-time PCR. Serum LPL mass was measured by ELISA using a specific monoclonal antibody against LPL. RESULTS At baseline, LPL mRNA expression in SAT correlated positively with serum LPL mass, but LPL mRNA expression in VAT did not. LPL mRNA expression in SAT was correlated, and serum LPL mass tended to correlate inversely with the number of metabolic syndrome symptoms, but LPL mRNA expression in VAT did not. LPL mRNA expression in SAT and CAVI tended to correlate inversely in the group with visceral-to-subcutaneous fat ratio of 0.4 or higher, which is considered metabolically severe. Serum LPL mass increased 1 year after LSG. Change in serum LPL mass at 1 year after LSG tended to be an independent factor inversely associated with change in CAVI. CONCLUSIONS Serum LPL mass reflected LPL mRNA expression in SAT in Japanese patients with severe obesity, and LPL mRNA expression in SAT was associated with CAVI in patients with visceral obesity. The change in serum LPL mass after LSG tended to independently contribute inversely to the change in CAVI. This study suggests that LPL derived from SAT may suppress the progression of arteriosclerosis.
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Affiliation(s)
- Atsuhito Saiki
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Yuka Takahashi
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Shoko Nakamura
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Shuhei Yamaoka
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Kazuki Abe
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Sho Tanaka
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Yasuhiro Watanabe
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Takashi Yamaguchi
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Daiji Nagayama
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
- Nagayama Clinic, Tochigi, Japan
| | - Masahiro Ohira
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Takashi Oshiro
- Department of Surgery, Toho University Sakura Medical Center, Chiba, Japan
| | - Ichiro Tatsuno
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
- Chiba Prefectural University of Health Sciences, Chiba, Japan
| | - Kohji Shirai
- Center of Diabetes, Endocrine and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
- Department of Internal Medicine, Mihama Hospital, Chiba, Japan
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Yoshida H, Fujiwara K. Adipose tissue area is a predictive biomarker for the efficacy of pegylated liposomal doxorubicin in platinum-refractory/resistant ovarian cancer. Cancer Med 2023. [PMID: 37184128 PMCID: PMC10358198 DOI: 10.1002/cam4.6086] [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: 12/23/2022] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND Pegylated liposomal doxorubicin (PLD), an anthracycline agent, is widely used as a treatment option for platinum-refractory/resistant epithelial ovarian cancer (EOC). Although only a subset of patients with platinum-refractory/resistant EOC derive benefit from PLD, predictive biomarkers for patients who will respond to the drug have not yet been established. Here, we evaluated the relationship between adipose tissue status and PLD efficacy in patients with platinum-refractory/resistant EOC. METHODS Patients with platinum-refractory/resistant EOC who were treated with single-agent PLD were included in this retrospective cohort study. Adipose tissue areas including visceral adipose tissue area (VATA), subcutaneous adipose tissue area (SATA), and visceral to subcutaneous adipose tissue area ratio (VSR) were calculated prior to the initiation of PLD using computed tomography images. The associations of adipose tissue areas with objective response rate (ORR) and patient survival were evaluated. RESULTS Forty-four patients with platinum-refractory/resistant EOC who received single-agent PLD were included. Subjects were categorized into high and low groups according to the median VATA, SATA, and VSR values, and body mass index (BMI). The ORR of PLD was significantly lower in the VSR-high group than in the VSR-low group (p = 0.0089). Patients in the high VSR group showed significantly shorter progression-free survival (PFS) compared with patients in the low VSR group (median, 4.0 vs. 8.5 months; p = 0.020). In the multivariable analysis, high VSR was a significant prognostic factor for shorter PFS (hazard ratio, 2.07; 95% confidence interval, 1.05-4.19; p = 0.035). VATA, SATA, and BMI showed no significant association with ORR and survival of patients who received PLD. CONCLUSIONS High VSR is associated with lower ORR and shorter PFS in patients with platinum-refractory/resistant EOC who received single-agent PLD. VSR is a robust predictive biomarker for the efficacy of PLD.
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Affiliation(s)
- Hiroyuki Yoshida
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Keiichi Fujiwara
- Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
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Jones A, Silver HJ. Myosteatotic and sarcopenic obesity impact postoperative outcomes more robustly than visceral obesity in general surgery patients, with differences by sex. Clin Nutr 2023; 42:625-635. [PMID: 36947987 DOI: 10.1016/j.clnu.2023.03.005] [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: 10/05/2022] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/24/2023]
Abstract
BACKGROUND AND AIMS Computed tomography (CT) defined myosteatotic, sarcopenic, and visceral obesity are associated with adverse surgical outcomes and mortality in patients with malignancies. These occult conditions may also be widely prevalent in today's general surgery patients who tend to be overweight/obese. This study identified the predominant obesity phenotypes in 906 patients aged 18-85 years who were scheduled for laparoscopic resection for benign abdominal or colorectal disease at Vanderbilt University Medical Center between 2010 and 2017. METHODS Sex and body mass index (BMI) specific cut-points were used to identify myosteatotic, sarcopenic, and visceral obesity phenotype from abdominal CT scan morphometrics. Multivariable regression modeling determined relationships between sex, obesity phenotype, and postoperative outcomes. RESULTS The myosteatostic + sarcopenic obesity phenotype associated with longer surgery duration and increased the likelihood for major complication (OR 1.34, 95%CI 1.01-1.74) and ICU admission (OR 1.39, 95%CI 1.04-1.90). Having myosteatotic obesity doubled the likelihood for hospital stay >7 days and discharge to a nursing home (OR 2.11, 95%CI 1.43,3.11), increasing the likelihood for readmission within 90 days. Obesity was more prevalent in females, but myosteatotic, sarcopenic, and visceral obesity were more prevalent in males, regardless of age or BMI. Males had more major complications (23.6% vs 17.7%, P = 0.03), particularly wound dehiscence or infection, and a 2-day longer hospital stay. CONCLUSIONS This study shows that sarcopenic and myosteatotic obesity phenotypes are highly prevalent, especially in male general surgery patients, regardless of age or BMI. Importantly, sarcopenic and myosteatostic obesity may be more detrimental than visceral obesity; these phenotypes robustly associated with adverse postoperative outcomes. Future work could use these findings for design of phenotype-specific interventions to reduce patient risk and prevent outcomes that are harmful and costly.
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Affiliation(s)
- Alexander Jones
- Western University of Health Sciences, College of Osteopathic Medicine, Lebanon, OR, USA.
| | - Heidi J Silver
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, USA.
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Associations between Body Mass Index, Waist Circumference, and Myocardial Infarction in Older Adults Aged over 75 Years: A Population-Based Cohort Study. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121768. [PMID: 36556970 PMCID: PMC9783624 DOI: 10.3390/medicina58121768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022]
Abstract
Background and Objectives: Body mass index (BMI) is widely used as a standard screening method for obesity and an indicator of related diseases. However, its inability to distinguish between lean body mass and body fat limits its utility. This limitation may be more prominent in older populations, wherein age-related sarcopenia and increased visceral fat due to the redistribution of adipose tissue may preclude a precise estimation of obesity. Many studies suggest that waist circumference (WC) is more strongly related to obesity-related diseases. There are also different opinions on whether the obesity paradox is real or a result of confusing interpretations. This study seeks to determine the association between myocardial infarction (MI), BMI, and WC in older adults and to determine if BMI and WC can reliably predict the risk of cardiovascular disease. Materials and Methods: We conducted a cohort study of older Korean adults aged over 75 years registered in the National Health Insurance System Senior database. Results: The results from the analysis using model 5, which was adjusted for each study variable, showed that the lower the BMI, the higher the hazard ratio (HR) of MI and vice versa. On the other hand, groups with lower than normal WC showed lower HR; even if it was higher, the difference was not statistically significant. Those with abdominal obesity tended to have an increased HR of MI. Conclusions: This study found that HR for MI has a negative relationship with BMI, whereas it has a positive relationship with WC. Furthermore, WC is a more appropriate indicator for predicting the risk of MI in the older population.
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Development of Machine Learning Tools for Predicting Coronary Artery Disease in the Chinese Population. DISEASE MARKERS 2022; 2022:6030254. [DOI: 10.1155/2022/6030254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/09/2022] [Accepted: 11/01/2022] [Indexed: 11/19/2022]
Abstract
Purpose. Coronary artery disease (CAD) is one of the major cardiovascular diseases and the leading cause of death globally. Blood lipid profile is associated with CAD early risk. Therefore, we aim to establish machine learning models utilizing blood lipid profile to predict CAD risk. Methods. In this study, 193 non-CAD controls and 2001 newly-diagnosed CAD patients (1647 CAD patients who received lipid-lowering therapy and 354 who did not) were recruited. Clinical data and the result of routine blood lipids tests were collected. Moreover, low-density lipoprotein cholesterol (LDL-C) subfractions (LDLC-1 to LDLC-7) were classified and quantified using the Lipoprint system. Six predictive models (k-nearest neighbor classifier (KNN), logistic regression (LR), support vector machine (SVM), decision tree (DT), multilayer perceptron (MLP), and extreme gradient boosting (XGBoost)) were established and evaluated by the confusion matrix, area under the receiver operating characteristic (ROC) curve (AUC), recall (sensitivity), accuracy, precision, and F1 score. The selected features were analyzed and ranked. Results. While predicting the CAD development risk of the CAD patients without lipid-lowering therapy in the test set, all models obtained AUC values above 0.94, and the accuracy, precision, recall, and F1 score were above 0.84, 0.85, 0.92, and 0.88, respectively. While predicting the CAD development risk of all CAD patients in the test set, all models obtained AUC values above 0.91, and the accuracy, precision, recall, and F1 score were above 0.87, 0.94, 0.87, and 0.92, respectively. Importantly, small dense LDL-C (sdLDL-C) and LDLC-4 play pivotal roles in predicting CAD risk. Conclusions. In the present study, machine learning tools combining both clinical data and blood lipid profile showed excellent overall predictive power. It suggests that machine learning tools are suitable for predicting the risk of CAD development in the near future.
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Sun H, Li F, Li Y, Guo L, Wang B, Huang M, Huang H, Liu J, Zhang C, Feng Z, Sun J. Effect of High-Voltage Electrostatic Field Heating on the Oxidative Stability of Duck Oils Containing Diacylglycerol. Foods 2022; 11:foods11091322. [PMID: 35564044 PMCID: PMC9105880 DOI: 10.3390/foods11091322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 12/10/2022] Open
Abstract
High-voltage electrostatic field (HVEF) as an emerging green technology is just at the beginning of its use in meat products and by-products processing. In this study, we employed duck oil to produce duck-oil-based diacylglycerol (DAG), termed DDAG. Three different DDAG volume concentrations (0, 20%, and 100%) of hybrid duck oils, named 0%DDAG, 20%DDAG, and 100%DDAG, respectively, were used to investigate their thermal oxidation stability in high-voltage electrostatic field heating and ordinary heating at 180 ± 1 ℃. The results show that the content of saturated fatty acids and trans fatty acids of the three kinds of duck oils increased (p < 0.05), while that of polyunsaturated fatty acids decreased (p < 0.05) from 0 h to 8 h. After heating for 8 h, the low-field nuclear magnetic resonance showed that the transverse relaxation time (T21) of the three oils decreased (p < 0.05), while the peak area ratio (S21) was increased significantly (p < 0.05). The above results indicate that more oxidation products were generated with heating time. The peroxide value, the content of saturated fatty acids, and the S21 increased with more DAG in the duck oil, which suggested that the oxidation stability was likely negatively correlated with the DAG content. Moreover, the peroxide value, the content of saturated fatty acids and trans fatty acids, and the S21 of the three concentrations of duck oils were higher (p < 0.05) under ordinary heating than HVEF heating. It was concluded that HVEF could restrain the speed of the thermal oxidation reaction occurring in the duck oil heating and be applied in heating conditions.
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Affiliation(s)
- Hailei Sun
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
| | - Fangfang Li
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
| | - Yan Li
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
| | - Liping Guo
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
| | - Baowei Wang
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
| | - Ming Huang
- National R&D Branch Center for Poultry Meat Processing Technology, Nanjing Huangjiaoshou Food Science and Technology Co., Ltd., Nanjing 211226, China;
| | - He Huang
- Shandong Newhope Liuhe Group Co., Ltd., Qingdao 266000, China; (H.H.); (J.L.)
| | - Jiqing Liu
- Shandong Newhope Liuhe Group Co., Ltd., Qingdao 266000, China; (H.H.); (J.L.)
| | | | - Zhansheng Feng
- Yingyuan Co., Ltd., Jining 272000, China; (C.Z.); (Z.F.)
| | - Jingxin Sun
- College of Food Science & Engineering, Shandong Research Center for Meat Food Quality Control, Qingdao Agricultural University, Qingdao 266109, China; (H.S.); (F.L.); (Y.L.); (L.G.); (B.W.)
- Qingdao Special Food Research Institute, Qingdao 266109, China
- Correspondence:
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Brel NK, Gruzdeva OV, Kokov AN, Masenko VL, Dyleva YA, Belik EV, Barbarash OL. Relationship of visceral obesity and coronary calcinosis in ischemic heart disease. TERAPEVT ARKH 2022; 93:1428-1434. [DOI: 10.26442/00403660.2021.12.201277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Indexed: 11/22/2022]
Abstract
Aim. To assess the relationship between the prevalence of visceral obesity (VO) and the severity of coronary calcification (CC) in patients with verified coronary artery disease (CAD).
Materials and methods. 125 patients with CAD were examined. Assessment of the morphometric characteristics of visceral adipose tissue (VAT) and CC was perform using multislice computed tomography (MSCT). The calcium index (CI) of the coronary arteries (CA) was determine by the Agatston method. Statistical analysis was perform using Statistica 10.0.
Results. VO was detect in 82 (65.6%) patients with CAD. In the presence of VO, higher CC values were observed in the projection of the envelope (p=0.00014), right coronary (p=0.00002) arteries, total CI (p=0.0003), and the prevalence of massive CC. Correlation analysis showed the relationship between the area of VAT and the CC of all the studied localizations. According to the ROC analysis, VO is a significant predictor of massive CC (area under the ROC curve AUC 0.72, 95% CI 0.560.89), in contrast to body mass index BMI (AUC 0.56, 95% CI 0.310.82).
Conclusion. The index of the ratio of VAT to subcutaneous adipose tissue (VAT/SAT), but not BMI, had a direct correlation with CC. Morphology of VAT may be a significant diagnostic sign of massive CC in patients with CAD, as a factor affecting treatment and prognosis.
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Visceral-to-subcutaneous fat ratio exhibits strongest association with early post-operative outcomes in patients undergoing surgery for advanced rectal cancer. Int J Colorectal Dis 2022; 37:1893-1900. [PMID: 35902393 PMCID: PMC9388433 DOI: 10.1007/s00384-022-04221-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/13/2022] [Indexed: 02/04/2023]
Abstract
AIM Despite their promise as prognostic factors in colorectal cancer, anthropometric data are frequently contradictory or difficult to interpret, with single body-composition parameters often investigated in isolation or heterogeneous clinical cohorts used in analyses. We sought to assess a spectrum of body-composition parameters in a highly selected cohort with locally advanced rectal cancer in a bid to determine those with strongest prognostic potential in this specific setting. MATERIALS/METHODS Between 2014 and 2020, 78 individuals received neoadjuvant chemotherapy, or chemoradiotherapy, followed by radical surgery in the treatment of locally advanced rectal adenocarcinoma at Oxford University Hospitals Trust. Demographic, treatment-related, perioperative, and short-term outcomes data were assessed. Body-composition parameters included BMI, and those derived from pre-operative computed-tomography imaging: skeletal mass index (SMI), visceral fat area (VFA), subcutaneous fat area (SFA), perinephric fat area (PFA) visceral-to-subcutaneous fat ratio (V/S), sarcopenia, and sarcopenic obesity (SO). RESULTS Pre-operative body-composition parameters exhibited particularly strong correlation with post-operative outcomes, with VFA (p = 0.002), V/S (p = 0.019), SO (p = 0.012), and PFA (p = 0.0016) all associated with an increased length of hospital stay. Univariate and multivariate analyses demonstrated V/S to be the sole independent body-composition risk factor to be associated with an increased risk of developing Clavien-Dindo complications ≥ 2 (p = 0.033) as well as an increased length of stay (p = 0.005). CONCLUSION Among patients with locally advanced rectal cancer, high visceral-to-subcutaneous fat ratio is the body-composition parameter most strongly associated with poor early post-operative outcomes. This should be considered in patient selection and prehabilitation protocols. WHAT DOES THIS PAPER ADD TO THE LITERATURE? : Our study demonstrates that among body composition parameters, high visceral-to-subcutaneous fat ratio is strongly associated with increased risk of post-operative complications and increased length of stay in patients undergoing surgery for advanced rectal cancer.
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Wada M, Yamaguchi K, Yamakage H, Inoue T, Kusakabe T, Abiko K, Takakura K, Konishi I, Satoh-Asahara N. Visceral-to-subcutaneous fat ratio is a possible prognostic factor for type 1 endometrial cancer. Int J Clin Oncol 2021; 27:434-440. [PMID: 34716844 PMCID: PMC8816789 DOI: 10.1007/s10147-021-02060-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/19/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Associations have been observed between obesity defined by the body mass index (BMI) and the incidence of endometrial cancer. However, the impact of obesity on the prognosis of endometrial cancer is not yet clear. Recently, visceral fat has been considered to have a greater impact on malignant disease in obese patients than subcutaneous fat. In this study, we investigated the association between prognostic factors of type 1 and type 2 endometrial cancer and obesity parameters. METHODS The impacts of clinical factors on the progression-free survival (PFS) and overall survival (OS) were analyzed retrospectively in 145 primary endometrial cancer patients. The factors included age, BMI, pathological findings, Federation of Gynecology and Obstetrics (FIGO) stage, status of lymph node metastasis, and the amounts of visceral and subcutaneous fat obtained from computed tomography (CT) data. RESULTS Only the visceral-to-subcutaneous fat ratio (V/S ratio) (cutoff value 0.5) corresponded to a significant difference in OS and PFS in type 1 endometrial cancer (p = 0.0080, p = 0.0053) according to the results of log-rank tests of Kaplan-Meier curves. The COX regression univariate analysis revealed that only the V/S ratio was a significant prognostic factor for PFS, but not OS (p = 0.033 and p = 0.270, respectively). CONCLUSION A V/S ratio > 0.5 is a possible factor for poor prognosis in type 1 endometrial cancer. Further research is needed to investigate the preventive and therapeutic effects of reducing visceral fat on the prognosis of this type of cancer.
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Affiliation(s)
- Michiko Wada
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
- Department of Obstetrics and Gynecology, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
| | - Ken Yamaguchi
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan.
- Department of Obstetrics and Gynecology, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan.
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Hajime Yamakage
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Takayuki Inoue
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Toru Kusakabe
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
| | - Kaoru Abiko
- Department of Obstetrics and Gynecology, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
| | - Kenji Takakura
- Department of Obstetrics and Gynecology, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
| | - Ikuo Konishi
- Department of Obstetrics and Gynecology, National Hospital Organization Kyoto Medical Center, Kyoto, 612-8555, Japan
| | - Noriko Satoh-Asahara
- Department of Endocrinology, Metabolism, and Hypertension, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto, 612-8555, Japan
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Park JW, Chang SY, Lim JS, Park SJ, Park JJ, Cheon JH, Kim WH, Kim TI. Impact of Visceral Fat on Survival and Metastasis of Stage III Colorectal Cancer. Gut Liver 2021; 16:53-61. [PMID: 34312323 PMCID: PMC8761926 DOI: 10.5009/gnl20266] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 01/08/2021] [Accepted: 01/19/2021] [Indexed: 11/04/2022] Open
Abstract
Background/Aims Previous studies have investigated the relationship between visceral obesity and the risk of colorectal tumors. Visceral obesity may affect the outcome of colorectal cancer (CRC), including survival and metastasis. We investigated the associations between visceral adipose tissue and oncologic outcomes in stage III CRC. Methods Four hundred seventy-two patients with stage III CRC were identified. Subcutaneous and visceral adipose tissue areas were measured volumetrically via computed tomography for each patient at different levels of the lumbar spine. After adjusting for age, sex, and other clinical factors, the effects of visceral adipose tissue area on mortality and recurrence were assessed using Cox proportional hazard regression. Results In univariate and multivariate analyses, a higher visceral adipose tissue to total adipose tissue (VT) ratio (hazard ratio [HR], 1.041; 95% CI, 1.008 to 1.075; p=0.015) and higher visceral adipose tissue to subcutaneous adipose tissue (VS) ratio (HR, 1.016; 95% CI, 1.005 to 1.028; p=0.006) were both associated with poor CRC-specific survival. Interestingly, in the evaluation of each site of recurrence, a higher VT ratio (HR, 1.069; 95% CI, 1.010 to 1.131; p=0.020) and higher VS ratio (HR, 1.024; 95% CI, 1.003 to 1.045; p=0.023) were both related to a higher risk of peritoneal seeding and tumor recurrence. The VT ratio at the L3-L4 level was significantly associated with a higher risk of peritoneal seeding and tumor recurrence (HR, 4.969; 95% CI, 1.303 to 18.949; p=0.019), while other levels showed no such relationship. Conclusions Visceral obesity is closely related to increased risks of CRC-specific mortality and peritoneal seeding metastasis in stage III CRC patients.
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Affiliation(s)
- Jung Won Park
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Yeon Chang
- Health Promotion Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Seok Lim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Jung Park
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Jun Park
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.,Yonsei Cancer Prevention Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hee Cheon
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Won Ho Kim
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Il Kim
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.,Yonsei Cancer Prevention Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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11
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Khan NA, Edwards CG, Thompson SV, Hannon BA, Burke SK, Walk ADM, Mackenzie RWA, Reeser GE, Fiese BH, Burd NA, Holscher HD. Avocado Consumption, Abdominal Adiposity, and Oral Glucose Tolerance Among Persons with Overweight and Obesity. J Nutr 2021; 151:2513-2521. [PMID: 34191028 PMCID: PMC8417923 DOI: 10.1093/jn/nxab187] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/12/2021] [Accepted: 05/17/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Although intake of Hass avocado has been cross-sectionally linked to lower abdominal obesity, knowledge of the effects of avocado consumption on abdominal adiposity and glycemic outcomes remains limited. OBJECTIVE The effects of avocado consumption on abdominal adiposity, insulin resistance, oral-glucose-tolerance test (OGTT), and estimated β-cell function were evaluated. METHODS A total of 105 adults aged 25-45 y (61% female) with BMI ≥25 kg/m2 were randomly assigned to an intervention (N = 53) that received a daily meal with 1 fresh Hass avocado or a control (N = 52) that received an isocaloric meal with similar ingredients without avocado for 12 wk. DXA was used to assess the primary outcomes of abdominal adiposity [visceral adipose tissue (VAT), subcutaneous abdominal adipose tissue (SAAT), and the ratio of VAT to SAAT (VS Ratio)]. Fasted glucose and insulin were used to assess the primary outcomes of insulin resistance (HOMA-IR), and insulin sensitivity (Matsuda index) and β-cell function (Insulinogenic index) were estimated using an OGTT. Changes between groups were compared using an ANCOVA. Secondary analyses were conducted based on sex. RESULTS The control group exhibited a greater reduction in SAAT [-54.5 ± 155.8 g (control) compared with 17.4 ± 155.1 g (treatment), P = 0.017] and increase in VS Ratio [0.007 ± 0.047 (control) compared with -0.011 ± 0.044 (treatment), P = 0.024]. Among females, the treatment group exhibited a greater reduction in VAT [1.6 ± 89.8 g (control) compared with -32.9 ± 81.6 g (treatment), P = 0.021] and VS Ratio [0.01 ± 0.05 (control) compared with -0.01 ± 0.03 (treatment), P = 0.001]. Among males, there was no significant difference between groups in changes in abdominal adiposity or glycemic outcomes. CONCLUSIONS Daily consumption of 1 fresh Hass avocado changed abdominal adiposity distribution among females but did not facilitate improvements in peripheral insulin sensitivity or β-cell function among adults with overweight and obesity.This study was registered at clinicaltrials.gov as NCT02740439.
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Affiliation(s)
| | - Caitlyn G Edwards
- Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA
| | - Sharon V Thompson
- Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA
| | - Bridget A Hannon
- Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA
| | - Sarah K Burke
- Department of Physical Therapy, University of Florida, Gaineville, FL, USA
| | - Anne D M Walk
- Department of Psychology, Eastern Illinois University, Charleston, IL, USA
| | - Richard W A Mackenzie
- Department of Life Science, Whitelands College, University of Roehampton, London, UK
| | - Ginger E Reeser
- Department of Kinesiology and Community Health, University of Illinois, Urbana, IL, USA
| | - Barbara H Fiese
- Department of Human Development and Family Studies, University of Illinois, Urbana, IL, USA,Family Resiliency Center, University of Illinois, Urbana, IL, USA
| | - Nicholas A Burd
- Department of Kinesiology and Community Health, University of Illinois, Urbana, IL, USA,Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA
| | - Hannah D Holscher
- Department of Kinesiology and Community Health, University of Illinois, Urbana, IL, USA,Division of Nutritional Sciences, University of Illinois, Urbana, IL, USA,Department of Food Science and Human Nutrition, University of Illinois, Urbana, IL, USA
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12
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Genome-wide identification and characterization of perirenal adipose tissue microRNAs in rabbits fed a high-fat diet. Biosci Rep 2021; 41:228333. [PMID: 33851695 PMCID: PMC8082595 DOI: 10.1042/bsr20204297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/31/2021] [Accepted: 04/13/2021] [Indexed: 01/03/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of endogenous single-stranded RNA molecules that play an important role in gene regulation in animals by pairing with target gene mRNA. Extensive evidence shows that miRNAs are key players in metabolic regulation and the development of obesity. However, the systemic understanding of miRNAs in the adipogenesis of obese rabbits need further investigation. Here, seven small RNA libraries from rabbits fed either a standard normal diet (SND; n=3) or high-fat diet (HFD; n=4) were constructed and sequenced. Differentially expressed (DE) miRNAs were identified using the edgeR data analysis package from R. Software miRanda and RNAhybrid were used to predict the target genes of miRNAs. To further explore the functions of DE miRNAs, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed. A total of 81449996 clean reads were obtained from the seven libraries, of which, 52 known DE miRNAs (24 up-regulated, 28 down-regulated) and 31 novel DE miRNAs (14 up-regulated, 17 down-regulated) were identified. GO enrichment analysis revealed that the DE miRNAs target genes were involved in intermediate filament cytoskeleton organization, intermediate filament-based process, and α-tubulin binding. DE miRNAs were involved in p53 signaling, linoleic acid metabolism, and other adipogenesis-related KEGG pathways. Our study further elucidates the possible functions of DE miRNAs in rabbit adipogenesis, contributing to the understanding of rabbit obesity.
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13
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Qi Y, Lin M, Yang Y, Li Y. Relationship of Visceral Adipose Tissue With Dilated Perivascular Spaces. Front Neurosci 2021; 14:583557. [PMID: 33613172 PMCID: PMC7891058 DOI: 10.3389/fnins.2020.583557] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/23/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Dilated perivascular spaces (dPVS) are considered to be a type of cerebral small vessel disease (CSVD) as well as an important part of the glymphatic system. Although obesity has been shown to play a significant role in the development of CSVD, there are no studies addressing the correlation between obesity and dPVS. We aimed to study the relationship between abdominal fat distribution and dPVS in neurologically healthy cohorts. METHODS A total of 989 subjects, who were examined during a health examination project, were included in this study. We measured both visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) areas using abdominal computed tomography. The dPVS scores were also evaluated in the basal ganglia (BG) and the centrum semiovale (CSO). RESULTS In a multivariate ordinal regression analysis, the relationship between VAT area and CSO-dPVS scores remained significant (β [95% confidence interval {CI} = 0.00003395] [0.00001074-0.00005716], P = 0.004), especially in male cohorts (β [95% CI] = 0.00004325 [0.00001772-0.00006878], P = 0.001) after adjusting for age; sex; and glucose, creatinine, uric acid, high-density lipoprotein, and low-density lipoprotein levels, while no association was found between SAT area and dPVS scores. The effects of quartile VAT area on CSO-dPVS were also significant in male cohorts (odds ratio [95% CI] = 1.33 [1.139 - 1.557], P < 0.001). CONCLUSION We demonstrated a positive association between VAT and CSO-dPVS scores in a healthy cohort, which was more prominent in males.
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Affiliation(s)
- Yunli Qi
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Radiology, Wenzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Wenzhou, China
| | - Mengqi Lin
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yunjun Yang
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanxuan Li
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
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14
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Wang C, Zhao Y, Jin B, Gan X, Liang B, Xiang Y, Zhang X, Lu Z, Zheng F. Development and Validation of a Predictive Model for Coronary Artery Disease Using Machine Learning. Front Cardiovasc Med 2021; 8:614204. [PMID: 33634169 PMCID: PMC7902072 DOI: 10.3389/fcvm.2021.614204] [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: 10/05/2020] [Accepted: 01/15/2021] [Indexed: 01/06/2023] Open
Abstract
Early identification of coronary artery disease (CAD) can prevent the progress of CAD and effectually lower the mortality rate, so we intended to construct and validate a machine learning model to predict the risk of CAD based on conventional risk factors and lab test data. There were 3,112 CAD patients and 3,182 controls enrolled from three centers in China. We compared the baseline and clinical characteristics between two groups. Then, Random Forest algorithm was used to construct a model to predict CAD and the model was assessed by receiver operating characteristic (ROC) curve. In the development cohort, the Random Forest model showed a good AUC 0.948 (95%CI: 0.941–0.954) to identify CAD patients from controls, with a sensitivity of 90%, a specificity of 85.4%, a positive predictive value of 0.863 and a negative predictive value of 0.894. Validation of the model also yielded a favorable discriminatory ability with the AUC, sensitivity, specificity, positive predictive value, and negative predictive value of 0.944 (95%CI: 0.934–0.955), 89.5%, 85.8%, 0.868, and 0.886 in the validation cohort 1, respectively, and 0.940 (95%CI: 0.922–0.960), 79.5%, 94.3%, 0.932, and 0.823 in the validation cohort 2, respectively. An easy-to-use tool that combined 15 indexes to assess the CAD risk was constructed and validated using Random Forest algorithm, which showed favorable predictive capability (http://45.32.120.149:3000/randomforest). Our model is extremely valuable for clinical practice, which will be helpful for the management and primary prevention of CAD patients.
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Affiliation(s)
- Chen Wang
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yue Zhao
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bingyu Jin
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xuedong Gan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bin Liang
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yang Xiang
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiaokang Zhang
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhibing Lu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fang Zheng
- Department of Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
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15
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Yamamoto R, Akasaki K, Horita M, Yonezawa M, Asakura H, Kanamori T, Maezawa Y, Koshizaka M, Yokote K, Kurita S. Evaluation of glucose tolerance and effect of dietary management on increased visceral fat in a patient with Werner syndrome. Endocr J 2020; 67:1239-1246. [PMID: 32814719 DOI: 10.1507/endocrj.ej20-0304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Werner syndrome (WS), a type of progeria, is a hereditary condition caused by a mutation in the WRN gene. A 62-year-old Japanese woman was diagnosed with WS at the age of 32 and has been visiting the hospital for follow-up since the last 30 years. The patient developed diabetes at the age of 46, and at the age of 60, her body mass index increased from 20.1 to 22.7 kg/m2 owing to her unhealthy eating habits; her visceral fat area at the age of 61 was 233 cm2. With dietary control, her body weight, including the visceral fat and subcutaneous fat, decreased at the age of 62, and her insulin secretion, obesity, and fatty liver improved. We conducted the oral glucose challenge test four times, including at the prediabetic stage, to evaluate the insulin-secretion ability. The patient's insulin resistance gradually increased for more than 14 years, and her insulin secretion ability began to decrease 14 years after her diabetes diagnosis. Despite a remarkable decrease in body weight and fat mass with dietary management, the psoas muscle index did not decrease significantly in proportion to the body weight or fat mass. However, muscle mass monitoring is important for preventing the progression of sarcopenia. Hence, gradual reduction of visceral fat and weight by dietary management may be useful in treating diabetes in patients with WS, particularly in those whose visceral fat is significantly increased.
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Affiliation(s)
- Reina Yamamoto
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Kyota Akasaki
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Masataka Horita
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Makoto Yonezawa
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Hiroki Asakura
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Takehiro Kanamori
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
| | - Yoshiro Maezawa
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Masaya Koshizaka
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Hematology and Gerontology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Seiichiro Kurita
- Department of Endocrinology and Metabolism, National Hospital Organization Kanazawa Medical Center, Ishikawa 920-8650, Japan
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16
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Yang JJ, Pham MT, Rahim AR, Chuang TH, Hsieh MF, Huang CM. Mouse Abdominal Fat Depots Reduced by Butyric Acid-Producing Leuconostoc mesenteroides. Microorganisms 2020; 8:E1180. [PMID: 32756446 PMCID: PMC7465043 DOI: 10.3390/microorganisms8081180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 12/24/2022] Open
Abstract
The activation of peroxisome proliferator-activated rece ptor gamma (PPAR-γ) is known to induce the differentiation of adipocytes. This study aimed to investigate the probiotic effect of Leuconostoc mesenteroides (L. mesenteroides) on high-fat diet (HFD)-induced PPAR-γ activation and abdominal fat depots. Incubation of differentiated 3T3-L1 adipocytes with media of L. mesenteroides EH-1, a butyric acid-producing strain, significantly reduced the amounts of lipid droplets. The oral administration of L. mesenteroides EH-1 produced large amounts (>1 mM) of butyric acid in cecum and attenuated the HFD-induced upregulation of PPAR-γ and accumulation of abdominal fats in mice. The combination of 2% glucose with L. mesenteroides EH-1 increased the production of butyric acid and potentiated the probiotic activity of L. mesenteroides EH-1 against the formation of lipid droplets in 3T3-L1 adipocytes as well as abdominal fats in HFD-fed mice. The inhibition of free fatty acid receptor 2 (Ffar2) by its antagonist, GLPG-0974, markedly diminished the probiotic effects of L. mesenteroides EH-1 plus glucose on the suppression of HFD-induced PPAR-γ and abdominal fats. Besides demonstrating the probiotic value of L. mesenteroides EH-1, our results highlight the possible therapy targeting the butyric acid-activated Ffar2 pathway to reduce abdominal fats.
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Affiliation(s)
- John Jackson Yang
- Department of Life Sciences, National Central University, Taoyuan 32001, Taiwan;
| | - Minh Tan Pham
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan 32001, Taiwan; (M.T.P.); (A.R.R.)
| | - Adelia Riezka Rahim
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan 32001, Taiwan; (M.T.P.); (A.R.R.)
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli County 35053, Taiwan;
| | - Ming-Fa Hsieh
- Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan;
| | - Chun-Ming Huang
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan 32001, Taiwan; (M.T.P.); (A.R.R.)
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Kashiwagi E, Imada K, Abe T, Kinoshita F, Monji K, Shiota M, Takeuchi A, Inokuchi J, Tatsugami K, Eto M. Thickness of Perirenal Fat Predicts the Growth Pattern of Renal Cell Carcinoma. KIDNEY CANCER 2020. [DOI: 10.3233/kca-190079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Eiji Kashiwagi
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kenjiro Imada
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tatsuro Abe
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Fumio Kinoshita
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keisuke Monji
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaki Shiota
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ario Takeuchi
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Junichi Inokuchi
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Katsunori Tatsugami
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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18
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Effect of probiotics on obesity-related markers per enterotype: a double-blind, placebo-controlled, randomized clinical trial. EPMA J 2020; 11:31-51. [PMID: 32140184 DOI: 10.1007/s13167-020-00198-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/09/2020] [Indexed: 02/06/2023]
Abstract
Background Prevention and improvement of disease symptoms are important issues, and probiotics are suggested as a good treatment for controlling the obesity. Human gut microbiota has different community structures. Because gut microbial composition is assumed to be linked to probiotic function, this study evaluated the efficacy of probiotics on obesity-related clinical markers according to gut microbial enterotype. Methods Fifty subjects with body mass index over 25 kg/m2 were randomly assigned to either the probiotic or placebo group. Each group received either unlabeled placebo or probiotic capsules for 12 weeks. Body weight, waist circumference, and body composition were measured every 3 weeks. Using computed tomography, total abdominal fat area and visceral fat area were measured. Blood and fecal samples were collected before and after the intervention for biochemical parameters and gut microbial compositions analysis. Results Gut microbial compositions of all the subjects were classified into two enterotypes according to Prevotella/Bacteroides ratio. The fat percentage, blood glucose, and insulin significantly increased in the Prevotella-rich enterotype of the placebo group. The obesity-related markers, such as waist circumference, total fat area, visceral fat, and ratio of visceral to subcutaneous fat area, were significantly reduced in the probiotic group. The decrease of obesity-related markers was greater in the Prevotella-rich enterotype than in the Bacteroides-rich enterotype. Conclusion Administration of probiotics improved obesity-related markers in obese people, and the efficacy of probiotics differed per gut microbial enterotype and greater responses were observed in the Prevotella-dominant enterotype.
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Mahdi BM. Significant of adiponectin in gastropathy: Case-controlled study. Ann Med Surg (Lond) 2019; 47:16-18. [PMID: 31641495 PMCID: PMC6796547 DOI: 10.1016/j.amsu.2019.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/06/2019] [Accepted: 09/16/2019] [Indexed: 12/17/2022] Open
Abstract
Background Gastropathy is a medical broad term applied for stomach diseases that affect mucosal lining characterized by epithelial injury. There are many types of gastropathy ranging from harmless conditions to more serious ones like cancer. Aim of the study to assess the significant effect of adiponectin and its level in patients with gastropathy. Patients and methods This case-control study includes 35 patients with gastropathy confirmed by gastroscope and thirty control group. Anthropometric Measurements like Weight, height, waist circumference, body mass index, and waist circumference. Blood sample was collected from the patients and control group and serum tested for lipid profile that includes (cholesterol, triglyceride, HDLP, LDLP) (Human-Germany), and adiponectin (Shanghai Biologic Technology-China) using Enzyme-Linked Immunosorbent Assay (ELISA). Results There is a significant difference between the two groups regarding height, weight, waist circumference, and waist to hip ratio (P-value 0.002,0.009, 0.002 and 0.015 respectively). Regarding adiponectin, there is no significant difference between patients (9.54 ± 5.821 and control 9.119 ± 7.062)(P = 0.796). Lipid profile showed a significant increase in cholesterol (p = 0.0001) and triglyceride (0.007) in patients group while there is no significant difference in HDL, LDL and LDL/HDL ratio. Conclusions Adiponectin had no role in the development of gastropathy. Patients with gastropathy had a significant increase in the serum level of cholesterol and triglyceride. There is a significant negative correlation between adiponectin and weight, body mass index, waist circumference, triglyceride, and low-density lipoprotein. Gastropathy is a medical broad term applied for stomach diseases. Effect of adiponectin and its level in patients with gastropathy. This case-control study includes 35 patients with gastropathy confirmed by gastroscope and thirty control group. Anthropometric Measurements and blood sample were collected from two groups. There is a significant difference between two groups regarding height, weight, waist circumference and waist to hip ratio while adiponectin there is no significant difference between two groups.
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Affiliation(s)
- Batool Mutar Mahdi
- Head of HLA Research Unit, Department of Microbiology, Al-Kindy College of Medicine, University of Baghdad, Iraq
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20
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Cavagnari MAV, Silva TD, Pereira MAH, Sauer LJ, Shigueoka D, Saad SS, Barão K, Ribeiro CCD, Forones NM. Impact of genetic mutations and nutritional status on the survival of patients with colorectal cancer. BMC Cancer 2019; 19:644. [PMID: 31255173 PMCID: PMC6599287 DOI: 10.1186/s12885-019-5837-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 06/17/2019] [Indexed: 12/21/2022] Open
Abstract
Background The prognosis of colorectal cancer (CRC) patients can be influenced by genetic mutations and nutritional status. The relationship between these variables is unclear. The objective of the study was to verify the variables involved in the nutritional status and genetic mutations, which correlate with survival of CRC patients. Methods Patients with surgical intervention for tumor resection were evaluated using body mass index, nutritional screening, patient self-produced global subjective assessment, phase angle, and computed tomography to calculate the areas of visceral adipose tissue (VAT) and subcutaneous adipose tissue, and muscle mass for the determination of sarcopenia. Ten gene mutations involved in CRC carcinogenesis were studied (PIK3CA, KRAS, BRAF, EGFR, NRAS, TP53, APC, PTEN, SMAD4, and FBXW7). DNA was extracted from fresh tumor or paraffin tissues. Results Of the 46 patients, 29 (64.4%) were at nutritional risk and 21 (45.7%) were moderately malnourished. However, there was a high percentage of VAT in 24 (61.5%) and sarcopenia in 19 (48.7%) patients. These variables were associated with a higher risk of mortality. Nutritional risk, moderate or severe malnutrition, phase angle < 5°, VAT < 163.8 cm2 in men and < 80.1 cm2 in women, and sarcopenia were associated with the relative risk of death, with respective hazard ratios/odds ratios and 95% confidence intervals of 8.77 (1.14–67.1), 3.95 (1.11–14.0), 3.79 (1.10–13.1), 3.43 (1.03–11.4), and 3.95 (1.06–14.6). Increased VAT was associated with a lower risk of death, even in patients older than 60 years or those harboring mutated KRAS. Conclusions Patients with positive indicators for malnutrition or risk of malnutrition had an increased risk of death. No relationship was identified between the presence of mutations and survival.
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Affiliation(s)
- Mariana Abe Vicente Cavagnari
- Department of Medicine. Gastroenterology Division. Oncology Group, Universidade Federal de São Paulo - SP. Brazil, R Botucatu 740, 2° andar CEP 04023900, Vila Clementino, São Paulo, Brazil. .,Department of Radiology, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - Tiago Donizetti Silva
- Department of Medicine. Gastroenterology Division. Oncology Group, Universidade Federal de São Paulo - SP. Brazil, R Botucatu 740, 2° andar CEP 04023900, Vila Clementino, São Paulo, Brazil
| | | | - Luísa Jacques Sauer
- Department of Radiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - David Shigueoka
- Department of Radiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sarhan Sydney Saad
- Department of Surgery, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Katia Barão
- Department of Medicine. Gastroenterology Division. Oncology Group, Universidade Federal de São Paulo - SP. Brazil, R Botucatu 740, 2° andar CEP 04023900, Vila Clementino, São Paulo, Brazil
| | - Carla Caroline Dias Ribeiro
- Department of Medicine. Gastroenterology Division. Oncology Group, Universidade Federal de São Paulo - SP. Brazil, R Botucatu 740, 2° andar CEP 04023900, Vila Clementino, São Paulo, Brazil
| | - Nora Manoukian Forones
- Department of Medicine. Gastroenterology Division. Oncology Group, Universidade Federal de São Paulo - SP. Brazil, R Botucatu 740, 2° andar CEP 04023900, Vila Clementino, São Paulo, Brazil
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21
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Brel NK, Kokov AN, Gruzdeva OV. Advantages and disadvantages of different methods for diagnosis of visceral obesity. OBESITY AND METABOLISM 2019. [DOI: 10.14341/omet9510] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This analytical review is devoted to the study of visceral obesity as a risk factor for the development and progression of cardiovascular diseases. The presented review discusses the evolution of methods for diagnosis of visceral obesity, their advantages and limitation for various ectopic fat depots.
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22
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Khan NA, Cannavale C, Iwinski S, Liu R, McLoughlin GM, Steinberg LG, Walk AM. Visceral Adiposity and Diet Quality Are Differentially Associated With Cognitive Abilities and Early Academic Skills Among Preschool-Age Children. Front Pediatr 2019; 7:548. [PMID: 32010649 PMCID: PMC6979276 DOI: 10.3389/fped.2019.00548] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 12/16/2019] [Indexed: 11/13/2022] Open
Abstract
Background: Visceral adipose tissue (VAT) and diet quality influence cognitive health in preadolescents; however, these relationships remain understudied among preschool-age children. Objectives: Investigate the relationship between VAT, diet quality, academic skills, and cognitive abilities among preschool-age children. Methods: Children between 4 and 5 years (N = 57) were enrolled in a cross-sectional study. Woodcock Johnson Early Cognitive and Academic Development Test (ECAD™) was utilized to assess General Intellectual Ability, Early Academic Skills, and Expressive Language. DXA was used to assess VAT. Diet quality was measured using the Healthy Eating Index-2015 (HEI-2015) based on 7-day food records. Results: Greater VAT was associated with poorer Early Academic Skills (r = -0.28, P = 0.03) whereas a diet pattern that included Fatty Acids, Whole Grains, Saturated Fats, Seafood and Plant Proteins, Total Vegetables, and Dairy was positively associated with General Intellectual Ability (r = 0.26, P = 0.04). Conclusions: Higher VAT is negatively related to Early Academic Skills whereas diet quality was positively and selectively related to intellectual abilities among preschool-age children. These findings indicate that the negative impact of abdominal adiposity on academic skills is evident as early as preschool-age while providing preliminary support for the potentially beneficial role of diet quality on cognitive abilities in early childhood.
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Affiliation(s)
- Naiman A Khan
- Department of Kinesiology and Community Health, University of Illinois, Champaign, IL, United States.,Neuroscience Program, University of Illinois, Champaign, IL, United States.,Division of Nutritional Sciences, University of Illinois, Champaign, IL, United States
| | - Corinne Cannavale
- Neuroscience Program, University of Illinois, Champaign, IL, United States
| | - Samantha Iwinski
- Department of Human Development and Family Studies, University of Illinois, Champaign, IL, United States
| | - Ruyu Liu
- Division of Nutritional Sciences, University of Illinois, Champaign, IL, United States
| | | | - Linda G Steinberg
- Department of Kinesiology and Community Health, University of Illinois, Champaign, IL, United States
| | - Anne M Walk
- Department of Psychology, Eastern Illinois University, Charleston, IL, United States
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Bairapareddy KC, Maiya AG, Kumar P, Nayak K, Guddattu V, Nayak V. Effect of aerobic exercise on echocardiographic epicardial adipose tissue thickness in overweight individuals. Diabetes Metab Syndr Obes 2018; 11:303-312. [PMID: 29950876 PMCID: PMC6018891 DOI: 10.2147/dmso.s145862] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Epicardial adipose tissue thickness (EATT) measured by echocardiography is a reliable indicator of visceral adipose tissue in the body and metabolic syndrome. The objective of this work was to study the effect of 12-week aerobic exercise training on echocardiographic epicardial adipose tissue thickness (EEATT), body composition and other metabolic parameters in asymptomatic overweight adults. METHODS A total of 170 overweight and mild obese individuals were randomly allocated to 12-week aerobic exercise program (intervention group) or no supervised exercise (control group). The body fat percentage and visceral fat levels were measured by bioelectric impedance analyzer, and blood tests were conducted to measure lipids, fasting blood sugar (FBS) and high-sensitivity C-reactive protein (Hs-CRP). The participants also underwent transthoracic echocardiography to measure EATT. All the outcomes were measured after 12 weeks. Repeated measures were analyzed using ANOVA and Mann-Whitney U-test were used to analyze the data. RESULTS EEATT values significantly reduced by -16.24% (3.12±1.18 to 2.70±1.04, p<0.05) following 12 weeks of aerobic exercise along with a reduction in weight by 2.96% (80.66±12.12 to 78.27±12.31, p<0.05), body mass index by 3.11% (29.20±2.71 to 28.29±2.81, p<0.05) and waist circumference by 2.29% (94.82±7.23 to 92.64±7.33, p<0.05) and improved Hs-CRP values. CONCLUSION The 12-week aerobic exercise was found to be effective in reducing EEATT in overweight and mild obese individuals. There was significant improvement in body composition, blood lipids, FBS, Hs-CRP and exercise capacity in intervention group compared to control group.
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Affiliation(s)
| | - Arun G Maiya
- Department of Physiotherapy, SOAHS, Manipal Academy of Higher Education, Manipal, India
| | - Padma Kumar
- Department of Cardiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Krishnananda Nayak
- Department of Cardiovascular Technology, SOAHS, Manipal Academy of Higher Education, Manipal, India
| | - Vasudeva Guddattu
- Department of Biostatistics, Manipal Academy of Higher Education, Manipal, India
| | - Vidya Nayak
- Department of Cardiovascular Technology, SOAHS, Manipal Academy of Higher Education, Manipal, India
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24
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Nishitani S, Fukuhara A, Shin J, Okuno Y, Otsuki M, Shimomura I. Metabolomic and microarray analyses of adipose tissue of dapagliflozin-treated mice, and effects of 3-hydroxybutyrate on induction of adiponectin in adipocytes. Sci Rep 2018; 8:8805. [PMID: 29891844 PMCID: PMC5995811 DOI: 10.1038/s41598-018-27181-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/30/2018] [Indexed: 12/11/2022] Open
Abstract
Sodium/glucose cotransporter 2 (SGLT2) inhibitor improves systemic glucose metabolism. To clarify the effect of dapagliflozin, we performed gene expression microarray and metabolomic analyses of murine adipose tissue. Three groups of mice were used; non-diabetic control KK mice (KK), diabetic KKAy mice (KKAy), and KKAy mice treated with dapagliflozin (KKAy + Dapa). Plasma glucose levels were significantly reduced in KKAy + Dapa compared with KKAy. Food consumption was larger in KKAy + Dapa than KKAy, and there were no significant differences in body and adipose tissue weight among the groups. Metabolomic analysis showed higher levels of many intermediate metabolites of the glycolytic pathway and TCA cycle in KKAy than KK, albeit insignificantly. Dapagliflozin partially improved accumulation of glycolytic intermediate metabolites, but not intermediate metabolites of the TCA cycle, compared with KKAy. Interestingly, dapagliflozin increased plasma and adipose 3-hydroxybutyric acid (3-HBA) levels. Microarray analysis showed that adipocytokines were downregulated in KKAy compared with KK mice, and upregulated by dapagliflozin. In vitro, 3-HBA induced β-hydroxybutyrylation of histone H3 at lysine 9 and upregulation of adiponectin in 3T3-L1 adipocytes independent of their acetylation or methylation. Our results suggest that 3-HBA seems to provide protection through epigenetic modifications of adiponectin gene in adipocytes.
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Affiliation(s)
- Shigeki Nishitani
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Atsunori Fukuhara
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan. .,Departments of Adipose Management, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Jihoon Shin
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.,Departments of Diabetes Care Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yosuke Okuno
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Michio Otsuki
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Iichiro Shimomura
- Departments of Metabolic Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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25
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Wu CH, Chang MC, Lyadov VK, Liang PC, Chen CM, Shih TTF, Chang YT. Comparing Western and Eastern criteria for sarcopenia and their association with survival in patients with pancreatic cancer. Clin Nutr 2018; 38:862-869. [PMID: 29503056 DOI: 10.1016/j.clnu.2018.02.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/05/2018] [Accepted: 02/12/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Sarcopenia and cachexia are associated with pancreatic cancer and serve as important adverse prognostic factors. Body composition can be analyzed by routine computed tomography (CT) for cancer staging and has been used to study many types of cancer. The CT measurements are robust, but the diagnostic criteria for sarcopenia vary among different studies. Age, sex and race are important factors that affect muscle and fat masses. This study aimed to analyze the effect of different sarcopenia diagnostic criteria on the prognosis of patients with pancreatic cancer. METHODS Patients with newly diagnosed pancreatic cancer at National Taiwan University Hospital between October 2013 and October 2016 were retrospectively reviewed in this study. Body composition was assessed using cross-sectional CT images to calculate the total skeletal muscle (TSM) index. The concordance and interobserver variability of the TSM measurements were evaluated using both the Western criteria and the Eastern criteria. Kaplan-Meier analyses and the Cox proportional hazard ratio with two different diagnostic criteria for sarcopenia were used to compare the effect on overall survival (OS). RESULTS A total of 146 patients with pancreatic cancer were enrolled. The TSM index measured by the Western institute was highly correlated with that measured by the Eastern institute (r = 0.953, p < 0.001). The prevalence of sarcopenia in the patient group at baseline was 66.4% (97/146) by the Western criteria and 11.0% (16/146) by the Eastern criteria, and only low agreement was found between the Western and Eastern criteria (Kappa value = 0.028, p = 0.149). Patients who were sarcopenic by the Western criteria showed no significant difference in OS versus those who were not sarcopenic (p = 0.807). However, patients who were sarcopenic by the Eastern criteria showed a significant difference in OS versus those who were not sarcopenic in a univariate analysis (p = 0.008) and multivariate analysis after adjustment for AJCC stage (p = 0.014). CONCLUSIONS Our study demonstrates that different diagnostic criteria may result in different diagnoses and that sarcopenia is an important poor prognostic factor for pancreatic cancer when appropriate diagnostic criteria are selected.
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Affiliation(s)
- Chih-Horng Wu
- Department of Medical Imaging, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taiwan
| | - Ming-Chu Chang
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan
| | - Vladimir K Lyadov
- Department of Surgical Oncology, Federal Medical and Rehabilitation Center, Russian Academy of Continuous Medical Education, Moscow, Russia
| | - Po-Chin Liang
- Department of Medical Imaging, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan
| | - Chyi-Mong Chen
- Department of Medical Imaging, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan
| | - Tiffany Ting-Fang Shih
- Department of Medical Imaging, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan
| | - Yu-Ting Chang
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan.
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26
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Delivanis DA, Iñiguez-Ariza NM, Zeb MH, Moynagh MR, Takahashi N, McKenzie TJ, Thomas MA, Gogos C, Young WF, Bancos I, Kyriazopoulou V. Impact of hypercortisolism on skeletal muscle mass and adipose tissue mass in patients with adrenal adenomas. Clin Endocrinol (Oxf) 2018; 88:209-216. [PMID: 29115003 DOI: 10.1111/cen.13512] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 01/25/2023]
Abstract
CONTEXT Abdominal visceral adiposity and central sarcopenia are markers of increased cardiovascular risk and mortality. OBJECTIVE To assess whether central sarcopenia and adiposity can serve as a marker of disease severity in patients with adrenal adenomas and glucocorticoid secretory autonomy. DESIGN Retrospective cohort study. PATIENTS Twenty-five patients with overt Cushing's syndrome (CS), 48 patients with mild autonomous cortisol excess (MACE) and 32 patients with a nonfunctioning adrenal tumour (NFAT) were included. METHODS Medical records were reviewed, and body composition measurements (visceral fat [VAT], subcutaneous fat [SAT], visceral/total fat [V/T], visceral/subcutaneous [V/S] and total abdominal muscle mass) were calculated based on abdominal computed tomography (CT). RESULTS In patients with overt CS, when compared to patients with NFAT, the V/T fat and the V/S ratio were increased by 0.08 (P < .001) and by 0.3 (P < .001); however, these measurements were decreased by 0.04 (P = .007) and 0.2 (P = .01), respectively, in patients with MACE. Total muscle mass was decreased by -10 cm2 (P = .02) in patients with overt CS compared to patients with NFAT. Correlation with morning serum cortisol concentrations after dexamethasone suppression testing revealed that for every 28 nmol/L cortisol increase there was a 0.008 increase in V/T (P < .001), 0.02 increase in the V/S fat ratio (P < .001) and a 1.2 cm2 decrease in mean total muscle mass (P = .002). CONCLUSIONS The severity of hypercortisolism was correlated with lower muscle mass and higher visceral adiposity. These CT-based markers may allow for a more reliable and objective assessment of glucocorticoid-related disease severity in patients with adrenal adenomas.
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Affiliation(s)
- Danae A Delivanis
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Nicole M Iñiguez-Ariza
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
| | | | | | | | | | - Melinda A Thomas
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Charalambos Gogos
- Department of Internal Medicine, University Hospital of Patras, Patras, Greece
| | - William F Young
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Irina Bancos
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN, USA
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27
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Le Roy CI, Beaumont M, Jackson MA, Steves CJ, Spector TD, Bell JT. Heritable components of the human fecal microbiome are associated with visceral fat. Gut Microbes 2018; 9:61-67. [PMID: 28767316 PMCID: PMC5914912 DOI: 10.1080/19490976.2017.1356556] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 07/06/2017] [Accepted: 07/10/2017] [Indexed: 02/07/2023] Open
Abstract
Obesity and its associated diseases are one of the major causes of death worldwide. The gut microbiota has been identified to have essential regulatory effects on human metabolism and obesity in particular. In a recent study we provided some insights into the link between the gut microbiota (GM) and adiposity, as well as host genetic modulation of these processes. Our results identify novel evidence of association between 6 adiposity phenotypes and faecal microbial operational taxonomic units (OTUs). Accumulation of visceral fat, a key risk factor for cardio-metabolic disease, has the strongest and most pervasive signature on the gut microbiota of the factors we examined. Furthermore, we observe that the adiposity-associated OTUs were classified as heritable and in some cases were also associated with host genetic variation at obesity-associated human candidate genes FHIT, TDRG1 and ELAVL4. This addendum confirms our previously published results in the TwinsUK cohort using a different approach to OTU clustering and multivariate analysis, and discusses further the importance of considering the GM as a complex ecosystem.
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Affiliation(s)
- Caroline I. Le Roy
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
| | - Michelle Beaumont
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
| | - Matthew A. Jackson
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
| | - Claire J. Steves
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
| | - Timothy D. Spector
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
| | - Jordana T. Bell
- Department of Twin Research & Genetic Epidemiology, King's College London, London, UK
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28
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Kashiwagi R, Iwahashi H, Yamada Y, Sakaue T, Okita T, Kawachi Y, Iwamoto R, Saisho K, Tamba S, Yamamoto K, Watanabe T, Fujimoto T, Matsuzawa Y. Effective waist circumference reduction rate necessary to avoid the development of type 2 diabetes in Japanese men with abdominal obesity. Endocr J 2017; 64:881-894. [PMID: 28717063 DOI: 10.1507/endocrj.ej17-0113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to determine the effective waist circumference (WC) reduction rate in avoiding the development of type 2 diabetes mellitus (T2DM) in <55 years and ≥55 years Japanese men with abdominal obesity. The study subjects were 795 men with WC ≥85 cm, fasting plasma glucose <126 mg/dL, 2-hr plasma glucose on 75 g of oral glucose tolerance test <200 mg/dL, and HbA1c 5.6-6.4 % (38-40 mmol/mol) at baseline who underwent general health checkups more than twice between April 2007 and May 2015. They were divided into 5 groups based on the change in WC during the observation period (WC gain group, and four groups stratified according the rate of WC loss). The subjects were also divided into the <55 years and ≥55 years (at baseline) subgroups. The cumulative incidence rate of T2DM was analyzed and compared among the groups. The cumulative incidence rates of the largest WC loss quartile (≥5.45 %) in all age, of the largest WC loss quartile (≥5.60 %) and second largest WC loss quartile (3.44-5.59 %) in the <55 years subgroup, and of the largest WC loss quartile (≥5.37 %) in the ≥55 years subgroup were significantly lower than that of the gain group (p<0.001, p=0.009, 0.012, and 0.012, respectively). WC reduction rate of at least about 3 % in the younger (<55 years) and at least about 5 % in the older (≥55 years) non-diabetic Japanese men with abdominal obesity can effectively reduce the chance of development of T2DM.
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Affiliation(s)
- Risa Kashiwagi
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Hiromi Iwahashi
- Department of Diabetes Care Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yuya Yamada
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Takaaki Sakaue
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Tomonori Okita
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Yusuke Kawachi
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Ryuya Iwamoto
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Kenji Saisho
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Sachiko Tamba
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | - Koji Yamamoto
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
| | | | | | - Yuji Matsuzawa
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan
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29
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Foster MT. So as we worry we weigh: Visible burrow system stress and visceral adiposity. Physiol Behav 2017; 178:151-156. [DOI: 10.1016/j.physbeh.2017.01.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/20/2016] [Accepted: 01/11/2017] [Indexed: 10/20/2022]
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30
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Ozoya OO, Siegel EM, Srikumar T, Bloomer AM, DeRenzis A, Shibata D. Quantitative Assessment of Visceral Obesity and Postoperative Colon Cancer Outcomes. J Gastrointest Surg 2017; 21:534-542. [PMID: 28101721 PMCID: PMC5560865 DOI: 10.1007/s11605-017-3362-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 01/04/2017] [Indexed: 01/31/2023]
Abstract
BACKGROUND Quantitative computed tomography (CT) assessment of visceral adiposity may be superior to body mass index (BMI) as a predictor of surgical morbidity. We sought to examine the association of CT measures of obesity and BMI with short-term postoperative outcomes in colon cancer patients. METHODS In this retrospective study, 110 patients treated with colectomy for stage I-III colon cancer were classified as obese or non-obese by preoperative CT-based measures of adiposity or BMI [obese: BMI ≥ 30 kg/m2, visceral fat area (VFA) to subcutaneous fat area ratio (V/S) ≥0.4, and VFA > 100 cm2]. Postoperative morbidity and mortality rates were compared. RESULTS Obese patients, by V/S and VFA but not BMI, were more likely to be male and have preexisting hypertension and diabetes. The overall complication rate was 25.5%, and there were no mortalities. Obese patients by VFA (with a trend for V/S but not BMI) were more likely to develop postoperative complications as compared to patients classified as non-obese: VFA (30.5 vs.10.7%, p = 0.03), V/S (29.2 vs. 9.5%, p = 0.05), and BMI (32.4 vs. 21.9%, p = 0.23). CONCLUSIONS Elevated visceral obesity quantified by CT is associated with the presence of key metabolic comorbidities and increased postoperative morbidity and may be superior to BMI for risk stratification.
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Affiliation(s)
- Oluwatobi. O. Ozoya
- Cancer Epidemiology, Moffitt Cancer Center, Tampa FL,Department of Global Health, College of Public Health, University of
South Florida, Tampa, FL
| | - Erin M. Siegel
- Cancer Epidemiology, Moffitt Cancer Center, Tampa FL,Health Research Informatics, Moffitt Cancer Center, Tampa, FL
| | - Thejal Srikumar
- Cancer Epidemiology, Moffitt Cancer Center, Tampa FL,Morsani College of Medicine, University of South Florida, Tampa,
FL
| | | | | | - David Shibata
- Department of Surgery, UT West Cancer Center, University of
Tennessee Health Science Center, Memphis, TN
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31
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Smith-Ryan AE, Blue MNM, Trexler ET, Hirsch KR. Utility of ultrasound for body fat assessment: validity and reliability compared to a multicompartment criterion. Clin Physiol Funct Imaging 2016; 38:220-226. [PMID: 27981810 DOI: 10.1111/cpf.12402] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/25/2016] [Indexed: 02/03/2023]
Abstract
Measurement of body composition to assess health risk and prevention is expanding. Accurate portable techniques are needed to facilitate use in clinical settings. This study evaluated the accuracy and repeatability of a portable ultrasound (US) in comparison with a four-compartment criterion for per cent body fat (%Fat) in overweight/obese adults. Fifty-one participants (mean ± SD; age: 37·2 ± 11·3 years; BMI: 31·6 ± 5·2 kg m-2 ) were measured for %Fat using US (GE Logiq-e) and skinfolds. A subset of 36 participants completed a second day of the same measurements, to determine reliability. US and skinfold %Fat were calculated using the seven-site Jackson-Pollock equation. The Wang 4C model was used as the criterion method for %Fat. Compared to a gold standard criterion, US %Fat (36·4 ± 11·8%; P = 0·001; standard error of estimate [SEE] = 3·5%) was significantly higher than the criterion (33·0 ± 8·0%), but not different than skinfolds (35·3 ± 5·9%; P = 0·836; SEE = 4·5%). US resulted in good reliability, with no significant differences from Day 1 (39·95 ± 15·37%) to Day 2 (40·01 ± 15·42%). Relative consistency was 0·96, and standard error of measure was 0·94%. Although US overpredicted %Fat compared to the criterion, a moderate SEE for US is suggestive of a practical assessment tool in overweight individuals. %Fat differences reported from these field-based techniques are less than reported by other single-measurement laboratory methods and therefore may have utility in a clinical setting. This technique may also accurately track changes.
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Affiliation(s)
- Abbie E Smith-Ryan
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, USA.,Human Movement Sciences, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC, USA
| | - Malia N M Blue
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, USA
| | - Eric T Trexler
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, USA.,Human Movement Sciences, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC, USA
| | - Katie R Hirsch
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, USA.,Human Movement Sciences, Department of Allied Health Science, University of North Carolina, Chapel Hill, NC, USA
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32
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Bandera EV, Fay SH, Giovannucci E, Leitzmann MF, Marklew R, McTiernan A, Mullee A, Romieu I, Thune I, Uauy R, Wiseman MJ. The use and interpretation of anthropometric measures in cancer epidemiology: A perspective from the world cancer research fund international continuous update project. Int J Cancer 2016; 139:2391-7. [PMID: 27352197 DOI: 10.1002/ijc.30248] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/17/2016] [Indexed: 03/25/2024]
Abstract
Anthropometric measures relating to body size, weight and composition are increasingly being associated with cancer risk and progression. Whilst practical in epidemiologic research, where population-level associations with disease are revealed, it is important to be aware that such measures are imperfect markers of the internal physiological processes that are the actual correlates of cancer development. Body mass index (BMI), the most commonly used marker for adiposity, may mask differences between lean and adipose tissue, or fat distribution, which varies across individuals, ethnicities, and stage in the lifespan. Other measures, such as weight gain in adulthood, waist circumference and waist-to-hip ratio, contribute information on adipose tissue distribution and insulin sensitivity. Single anthropometric measures do not capture maturational events, including the presence of critical windows of susceptibility (i.e., age of menarche and menopause), which presents a challenge in epidemiologic work. Integration of experimental research on underlying dynamic genetic, hormonal, and other non-nutritional mechanisms is necessary for a confident conclusion of the overall evidence in cancer development and progression. This article discusses the challenges confronted in evaluating and interpreting the current evidence linking anthropometric factors and cancer risk as a basis for issuing recommendations for cancer prevention.
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Affiliation(s)
- Elisa V Bandera
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA
| | | | - Edward Giovannucci
- Harvard TH Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Michael F Leitzmann
- Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | | | - Anne McTiernan
- Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Amy Mullee
- International Agency for Research on Cancer, Lyon, France
| | | | - Inger Thune
- Institute of Clinical Medicine, Oslo University Hospital and University of Tromsø, Tromsø, Norway
| | - Ricardo Uauy
- Instituto De Nutrición Y Tecnología De Los Alimentos, University of Chile, Santiago, Chile; London, UK School of Hygiene and Tropical Medicine
| | - Martin J Wiseman
- NIHR Southampton Biomedical Research Centre and Southampton General Hospital, Southampton, UK
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Uchoa MF, Moser VA, Pike CJ. Interactions between inflammation, sex steroids, and Alzheimer's disease risk factors. Front Neuroendocrinol 2016; 43:60-82. [PMID: 27651175 PMCID: PMC5123957 DOI: 10.1016/j.yfrne.2016.09.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/10/2016] [Accepted: 09/14/2016] [Indexed: 12/19/2022]
Abstract
Alzheimer's disease (AD) is an age-related neurodegenerative disorder for which there are no effective strategies to prevent or slow its progression. Because AD is multifactorial, recent research has focused on understanding interactions among the numerous risk factors and mechanisms underlying the disease. One mechanism through which several risk factors may be acting is inflammation. AD is characterized by chronic inflammation that is observed before clinical onset of dementia. Several genetic and environmental risk factors for AD increase inflammation, including apolipoprotein E4, obesity, and air pollution. Additionally, sex steroid hormones appear to contribute to AD risk, with age-related losses of estrogens in women and androgens in men associated with increased risk. Importantly, sex steroid hormones have anti-inflammatory actions and can interact with several other AD risk factors. This review examines the individual and interactive roles of inflammation and sex steroid hormones in AD, as well as their relationships with the AD risk factors apolipoprotein E4, obesity, and air pollution.
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Affiliation(s)
- Mariana F Uchoa
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA 90089, USA
| | - V Alexandra Moser
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA 90089, USA
| | - Christian J Pike
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA 90089, USA; Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA.
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Campbell IW. Pioglitazone — an oral antidiabetic agent and metabolic syndrome modulator. Can theory translate into practice? ACTA ACUST UNITED AC 2016. [DOI: 10.1177/14746514050050040601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The metabolic syndrome, associated with insulin resistance, is a cluster of cardiovascular risk factors which results in premature morbidity and mortality from atherosclerotic vascular disease. Pioglitazone, a peroxisome-proliferator-activated receptor gamma (PPARγ) agonist, is an insulin sensitiser with the ability to address key features of the metabolic syndrome: glucose intolerance including type 2 diabetes, hypertension, dyslipidaemia, the pro-coagulant state, endothelial dysfunction, inflammation and atherosclerosis. The greatest potential benefit of pioglitazone is to influence atherogenesis itself through its pleiotrophic effects on vascular risk factors. This has been tested by the PROactive study, results of which are published in September 2005.
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Affiliation(s)
- Ian W Campbell
- Department, Victoria Hospital, Kirkcaldy, Fife KY2 5AH, Scotland, UK,
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Koda M, Kitamura I, Okura T, Otsuka R, Ando F, Shimokata H. The Associations Between Smoking Habits and Serum Triglyceride or Hemoglobin A1c Levels Differ According to Visceral Fat Accumulation. J Epidemiol 2015; 26:208-15. [PMID: 26616395 PMCID: PMC4808688 DOI: 10.2188/jea.je20150086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/20/2015] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Whether smokers and former smokers have worse lipid profiles or glucose levels than non-smokers remains unclear. METHODS The subjects were 1152 Japanese males aged 42 to 81 years. The subjects were divided according to their smoking habits (nonsmokers, former smokers, and current smokers) and their visceral fat area (VFA) (<100 cm(2) and ≥100 cm(2)). RESULTS The serum triglyceride (TG) levels of 835 males were assessed. In the VFA ≥100 cm(2) group, a significantly greater proportion of current smokers (47.3%) exhibited TG levels of ≥150 mg/dL compared with former smokers (36.4%) and non-smokers (18.8%). The difference in TG level distribution between former smokers and non-smokers was also significant. However, among the subjects with VFA of <100 cm(2), the TG levels of the three smoking habit groups did not differ. The serum hemoglobin A1c (HbA1c) levels of 877 males were also assessed. In the VFA <100 cm(2) group, significantly higher proportions of current smokers (17.9%) and former smokers (14.9%) demonstrated HbA1c levels of ≥5.6% compared with non-smokers (6.3%). In contrast, in the VFA ≥100 cm(2) group, significantly fewer former smokers displayed HbA1c levels of ≥5.6% compared with non-smokers and current smokers. Furthermore, the interaction between smoking habits and VFA was associated with the subjects' TG and HbA1c concentrations, and the associations of TG and HbA1c concentrations and smoking habits varied according to VFA. CONCLUSIONS Both smoking habits and VFA exhibited associations with TG and HbA1c concentrations. The associations between smoking habits and these parameters differed according to VFA.
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Docimo S, Lamparello B, Cohen MF, Kopatsis A, Vinces F. Utilizing quantitative measures of visceral adiposity in evaluating trauma patient outcomes. Int J Surg 2015; 21:51-6. [DOI: 10.1016/j.ijsu.2015.06.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/11/2015] [Accepted: 06/20/2015] [Indexed: 10/23/2022]
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Yip C, Dinkel C, Mahajan A, Siddique M, Cook GJR, Goh V. Imaging body composition in cancer patients: visceral obesity, sarcopenia and sarcopenic obesity may impact on clinical outcome. Insights Imaging 2015; 6:489-97. [PMID: 26070723 PMCID: PMC4519815 DOI: 10.1007/s13244-015-0414-0] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 05/27/2015] [Accepted: 05/29/2015] [Indexed: 02/05/2023] Open
Abstract
UNLABELLED In recent years, there has been increasing interest in the influence of body composition on oncological patient outcomes. Visceral obesity, sarcopenia and sarcopenic obesity have been identified as adverse factors in cancer patients. Imaging quantification of body composition such as lean muscle mass and fat distribution is a potentially valuable tool. This review describes the following imaging techniques that may be used to assess body composition: dual-energy X-ray absorptiometry (DXA), computed tomography (CT) and magnetic resonance imaging (MRI). CT and MRI are acquired as part of oncological patient care, thus providing an opportunity to integrate body composition assessment into the standard clinical pathway and allowing supportive care to be commenced as appropriate to improve outcome. MAIN MESSAGES • Sarcopenia, sarcopenic obesity and visceral obesity are adverse prognostic factors in cancer patients. • CT and MRI are the current gold standard in body composition evaluation. • Body composition may affect chemotherapy tolerance and toxicities.
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Affiliation(s)
- Connie Yip
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
- />Department of Radiation Oncology, National Cancer Centre, Singapore, Singapore
| | - Charlotte Dinkel
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
| | - Abhishek Mahajan
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
| | - Musib Siddique
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
| | - Gary J. R. Cook
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
- />PET Imaging Centre, Guy’s & St Thomas’ NHS Foundation Trust, London, UK
| | - Vicky Goh
- />Division of Imaging Sciences & Biomedical Engineering, King’s College London, London, UK
- />Department of Radiology, Guy’s & St Thomas’ NHS Foundation Trust, London, UK
- />Department of Radiology, Imaging 2, Level 2, Lambeth Wing, St Thomas’ Hospital, London, SE1 7EH UK
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Busetto L, Dixon J, De Luca M, Shikora S, Pories W, Angrisani L. Bariatric surgery in class I obesity : a Position Statement from the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO). Obes Surg 2015; 24:487-519. [PMID: 24638958 DOI: 10.1007/s11695-014-1214-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Class I obesity conveys an increased risk of comorbidities, impairs physical and mental health-related quality of life, and it is associated to an increased psychosocial burden, particularly in women. The need for effective and safe therapies for class I obesity is great and not yet met by nonsurgical approaches. Eligibility to bariatric surgery has been largely based on body mass index (BMI) cut points and limited to patients with more severe obesity levels. However, obese patients belonging to the same BMI class may have very different levels of health, risk, and impact of obesity on quality of life. Individual patients in class I obesity may have a comorbidity burden similar to, or greater than, patients with more severe obesity. Therefore, the denial of bariatric surgery to a patient with class I obesity suffering from a significant obesity-related health burden and not achieving weight control with nonsurgical therapy simply on the basis of the BMI level does not appear to be clinically justified. A clinical decision should be based on a more comprehensive evaluation of the patient's current global health and on a more reliable prediction of future morbidity and mortality. After a careful review of available data about safety and efficacy of bariatric surgery in patients with class I obesity, this panel reached a consensus on ten clinical recommendations.
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Affiliation(s)
- Luca Busetto
- Department of Medicine, University of Padua, Padua, Italy,
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Matsuda M, Shimomura I. Roles of oxidative stress, adiponectin, and nuclear hormone receptors in obesity-associated insulin resistance and cardiovascular risk. Horm Mol Biol Clin Investig 2015; 19:75-88. [PMID: 25390017 DOI: 10.1515/hmbci-2014-0001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 03/17/2014] [Indexed: 12/12/2022]
Abstract
Obesity leads to the development of type 2 diabetes mellitus, which is a strong risk factor for cardiovascular disease. A better understanding of the molecular basis of obesity will lead to the establishment of effective prevention strategies for cardiovascular diseases. Adipocytes have been shown to generate a variety of endocrine factors termed adipokines/adipocytokines. Obesity-associated changes to these adipocytokines contribute to the development of cardiovascular diseases. Adiponectin, which is one of the most well-characterized adipocytokines, is produced exclusively by adipocytes and exerts insulin-sensitizing and anti-atherogenic effects. Obese subjects have lower levels of circulating adiponectin, and this is recognized as one of the factors involved in obesity-induced insulin resistance and atherosclerosis. Another pathophysiological feature of obesity may involve the low-grade chronic inflammation in adipose tissue. This inflammatory process increases oxidative stress in adipose tissue, which may affect remote organs, leading to the development of diabetes, hypertension, and atherosclerosis. Nuclear hormone receptors (NRs) regulate the transcription of the target genes in response to binding with their ligands, which include metabolic and nutritional substrates. Among the various NRs, peroxisome proliferator-activated receptor γ promotes the transcription of adiponectin and antioxidative enzymes, whereas mineralocorticoid receptor mediates the effects of aldosterone and glucocorticoid to induce oxidative stress in adipocytes. It is hypothesized that both play crucial roles in the pathophysiology of obesity-associated insulin resistance and cardiovascular diseases. Thus, reduced adiponectin and increased oxidative stress play pathological roles in obesity-associated insulin resistance to increase the cardiovascular disease risk, and various NRs may be involved in this pathogenesis.
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Booth A, Magnuson A, Foster M. Detrimental and protective fat: body fat distribution and its relation to metabolic disease. Horm Mol Biol Clin Investig 2015; 17:13-27. [PMID: 25372727 DOI: 10.1515/hmbci-2014-0009] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 02/12/2014] [Indexed: 02/06/2023]
Abstract
Obesity is linked to numerous comorbidities that include, but are not limited to, glucose intolerance, insulin resistance, dyslipidemia, and cardiovascular disease. Current evidence suggests, however, obesity itself is not an exclusive predictor of metabolic dysregulation but rather adipose tissue distribution. Obesity-related adverse health consequences occur predominately in individuals with upper body fat accumulation, the detrimental distribution, commonly associated with visceral obesity. Increased lower body subcutaneous adipose tissue, however, is associated with a reduced risk of obesity-induced metabolic dysregulation and even enhanced insulin sensitivity, thus, storage in this region is considered protective. The proposed mechanisms that causally relate the differential outcomes of adipose tissue distribution are often attributed to location and/or adipocyte regulation. Visceral adipose tissue effluent to the portal vein drains into the liver where hepatocytes are directly exposed to its metabolites and secretory products, whereas the subcutaneous adipose tissue drains systemically. Adipose depots are also inherently different in numerous ways such as adipokine release, immunity response and regulation, lipid turnover, rate of cell growth and death, and response to stress and sex hormones. Proximal extrinsic factors also play a role in the differential drive between adipose tissue depots. This review focuses on the deleterious mechanisms postulated to drive the differential metabolic response between central and lower body adipose tissue distribution.
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Gentile CL, Weir TL, Cox-York KA, Wei Y, Wang D, Reese L, Moran G, Estrada A, Mulligan C, Pagliassotti MJ, Foster MT. The role of visceral and subcutaneous adipose tissue fatty acid composition in liver pathophysiology associated with NAFLD. Adipocyte 2015; 4:101-12. [PMID: 26167414 DOI: 10.4161/21623945.2014.978662] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/10/2014] [Accepted: 10/15/2014] [Indexed: 11/19/2022] Open
Abstract
Visceral adiposity is associated with type-2-diabetes, inflammation, dyslipidemia and non-alcoholic fatty liver disease (NAFLD), whereas subcutaneous adiposity is not. We hypothesized that the link between visceral adiposity and liver pathophysiology involves inherent or diet-derived differences between visceral and subcutaneous adipose tissue to store and mobilize saturated fatty acids. The goal of the present study was to characterize the fatty acid composition of adipose tissue triglyceride and portal vein fatty acids in relation to indices of liver dysregulation. For 8 weeks rats had free access to control (CON; 12.9% corn/safflower oil; 3.6 Kcal/g), high saturated fat (SAT; 45.2% cocoa butter; 4.5 Kcal/g) or high polyunsaturated fat (PUFA; 45.2% safflower oil; 4.5 Kcal/g) diets. Outcome measures included glucose tolerance, visceral and subcutaneous adipose tissue triglyceride, liver phospholipids and plasma (portal and systemic) free fatty acid composition, indices of inflammation and endoplasmic reticulum stress in the liver and adipose tissue depots and circulating adipo/cytokines. Hepatic triglycerides were significantly increased in both high fat diet groups compared to control and were significantly higher in PUFA compared to SAT. Although glucose tolerance was not different among diet groups, SAT increased markers of inflammation and ER stress in the liver and both adipose tissue depots. Fatty acid composition did not differ among adipose depots or portal blood in any dietary group. Overall, these data suggest that diets enriched in saturated fatty acids are associated with liver inflammation, ER stress and injury, but that any link between visceral adipose tissue and these liver indices does not involve selective changes to fatty acid composition in this depot or the portal vein.
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Larsen BA, Allison MA, Kang E, Saad S, Laughlin GA, Araneta MRG, Barrett-Connor E, Wassel CL. Associations of physical activity and sedentary behavior with regional fat deposition. Med Sci Sports Exerc 2014; 46:520-8. [PMID: 23924920 DOI: 10.1249/mss.0b013e3182a77220] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Increased sedentary behavior predicts greater cardiovascular morbidity and mortality and does so independently of physical activity (PA). This association is only partially explained by body mass index (BMI) and overall body fat, suggesting mechanisms besides general increased adiposity. The purpose of this study was to explore associations of self-reported leisure PA and sitting time with regional fat depositions and abdominal muscle among community-dwelling older adults. METHODS Participants were 539 diverse adults (mean age = 65 yr) who completed a study visit in 2001-2002. Areas of pericardial, intrathoracic, subcutaneous, visceral, and intermuscular fat, as well as abdominal muscle, were measured using computed tomography. Leisure PA and sitting hours were entered simultaneously into multivariate regression models to determine associations with muscle and fat areas. RESULTS After adjusting for demographics, smoking, diabetes, hypertension, triglycerides, and cholesterol, greater PA was associated with less intrathoracic, visceral, subcutaneous, and intermuscular fat (for all P < 0.05), while greater sedentary time was associated with greater pericardial and intrathoracic fat (for both P < 0.05). After further adjusting for BMI, each hour of weekly PA was associated with 1.85 cm less visceral fat (P < 0.01) but was not associated with other fat depositions. Conversely, each hour of daily sitting was associated with 2.39 cm more pericardial fat (P < 0.05) but was not associated with any other fat depositions. There were no associations with abdominal muscle area. Adjusting for common inflammatory markers had little effect. Associations between fat and PA were stronger for men. CONCLUSIONS Sitting and PA have distinct associations with regional fat deposition in older adults. The association between sitting and pericardial fat could partially explain the link between sitting and coronary heart disease.
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Affiliation(s)
- Britta A Larsen
- 1Department of Family and Preventive Medicine, University of California, San Diego, San Diego, CA; and 2Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA
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Matsuda M, Shimomura I. Increased oxidative stress in obesity: implications for metabolic syndrome, diabetes, hypertension, dyslipidemia, atherosclerosis, and cancer. Obes Res Clin Pract 2014; 7:e330-41. [PMID: 24455761 DOI: 10.1016/j.orcp.2013.05.004] [Citation(s) in RCA: 406] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Obesity, especially of the abdominal type, is a health problem that constitutes metabolic syndrome and increases the incidence of various diseases, including diabetes, hypertension, dyslipidemia, atherosclerosis, and cancer. Various mechanisms linking obesity to these associated diseases have been postulated. One candidate is oxidative stress, which has been implicated in vascular complications of diabetes and in pancreatic -cell failure in diabetes. Notably, obese people without diabetes also display elevated levels of systemic oxidative stress. In addition, levels of oxidative stress are increased in the adipose tissue in obese mice. Treating obese mice with antioxidant agents attenuates the development of diabetes. In 3T3-L1 adipocytes, increases in reactive oxygen species (ROS) occur with lipid accumulation; the addition of free fatty acids elevates ROS generation further. Thus, adipose tissue represents an important source of ROS; ROS may contribute to the development of obesity-associated insulin resistance and type 2 diabetes. Moreover, the levels of oxidative stress present in several other types of cells or tis-sues, including those in the brain, arterial walls, and tumors, have been implicated in the pathogenesis associated with hypertension, atherosclerosis, and cancer. The increased levels of systemic oxidative stress that occur in obesity may contribute to the obesity-associated development of these diseases.
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Abstract
BACKGROUND Visceral obesity appears to be an emerging parameter affecting postoperative outcome after abdominal surgery. However, total visceral fat remains time consuming to calculate, and there is still a lack of data about its value as an independent risk factor in colorectal surgery. OBJECTIVES The aim of this study was to validate the simple measurement of perirenal fat surface as a surrogate of visceral obesity, and to test the value of perirenal fat surface as a risk factor for morbidity in colorectal surgery and to compare it with the predictive value of other obesity parameters such as BMI and waist-hip ratio. DESIGN This is a prospective observational cohort study. SETTING The study was conducted at a tertiary university hospital. PATIENTS Two hundred twenty-four consecutive patients (130 male) undergoing elective colorectal surgery with a mean age of 65.2 years (SD, ±12.9) were identified. INTERVENTION Elective colorectal resections were performed. MAIN OUTCOME MEASURES We assessed complications as the primary outcome measure. Secondary outcome measures were the conversion rates, duration of operation, and length of hospital stay. RESULTS Perirenal fat surface was validated as a surrogate of visceral fat and a strong correlation between the 2 was confirmed (Spearman correlation coefficient ρ = 0.96). The overall postoperative complication rate was 22.8% (51/224) with 14.7% moderate complications (grade I and II) and 7.6% severe complications (grade III-IV), with a mortality rate of 0.5%. Multivariate analysis confirmed perirenal fat surface as an independent risk factor for postoperative complications (OR, 3.87; 95% CI, 1.73-8.64; p = 0.001), whereas BMI and waist-hip ratio were not statistically associated with postoperative complications (OR, 1.16; 95% CI, 0.51-2.66; p = 0.72). LIMITATIONS This study was limited by its sample size. CONCLUSION Perirenal fat surface is an excellent and easy-to-reproduce indicator of visceral fat volume. Furthermore, perirenal fat surface is an independent risk factor for postoperative outcome in colorectal surgery that appears to be of higher predictive value than BMI and waist-hip ratio.
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Choi KM, Hwang SY, Hong HC, Choi HY, Yoo HJ, Youn BS, Baik SH, Seo HS. Implications of C1q/TNF-related protein-3 (CTRP-3) and progranulin in patients with acute coronary syndrome and stable angina pectoris. Cardiovasc Diabetol 2014; 13:14. [PMID: 24417980 PMCID: PMC3897880 DOI: 10.1186/1475-2840-13-14] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 01/10/2014] [Indexed: 12/14/2022] Open
Abstract
Background C1q/TNF-related protein-3 (CTRP-3), an adiponectin paralog, and progranulin were recently identified as novel adipokines which may link obesity with glucose dysregulation and subclinical inflammation. We analyzed the relationship between CTRP-3, progranulin and coronary artery disease (CAD) in Korean men and women. Methods Circulating CTRP-3 and progranulin levels were examined in 362 Korean adults with acute coronary syndrome (ACS, n = 69), stable angina pectoris (SAP, n = 85), and control subjects (n = 208) along with various kinds of cardiometabolic risk factors. Results CTRP-3 concentrations were significantly decreased in patients with ACS or SAP compared to control subjects (P <0.001, respectively), whereas progranulin and adiponectin levels were similar. Correlation analysis adjusted for age and gender exhibited that CTRP-3 levels showed significant negative relationship with glucose (r = -0.110, P = 0.041) and high sensitive C-reactive protein (hsCRP) levels (r = -0.159, P = 0.005), and positive relationship with HDL-cholesterol (r = 0.122, P = 0.025) and adiponectin levels (r = 0.194, P <0.001). In a multivariate logistic regression analysis, the odds ratio for CAD risk was 5.14 (95% CI, 1.83-14.42) in the second, and 9.04 (95% CI, 2.81-29.14) in the first tertile of CTRP-3 levels compared to third tertile after adjusting for other cardiometabolic risk variables. Conclusions Patients with ACS or SAP had significantly lower circulating CTRP-3 concentrations compared to control subjects, although progranulin levels were not different. These results suggest the possibility that CTRP-3 might be useful for assessing the risk of CAD. Trial registration (Clinical trials No.: NCT01594710)
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Affiliation(s)
| | | | | | | | | | | | | | - Hong Seog Seo
- Division of Cardiology, Department of Internal Medicine, Korea University Guro Hospital, 80 Guro-Dong, Guro-Gu, Seoul 152-050, Korea.
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Munro IA, Garg ML. Dietary supplementation with long chain omega-3 polyunsaturated fatty acids and weight loss in obese adults. Obes Res Clin Pract 2013; 7:e173-81. [DOI: 10.1016/j.orcp.2011.11.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 11/09/2011] [Indexed: 10/14/2022]
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Clark W, Siegel EM, Chen YA, Zhao X, Parsons CM, Hernandez JM, Weber J, Thareja S, Choi J, Shibata D. Quantitative measures of visceral adiposity and body mass index in predicting rectal cancer outcomes after neoadjuvant chemoradiation. J Am Coll Surg 2013; 216:1070-81. [PMID: 23523147 DOI: 10.1016/j.jamcollsurg.2013.01.007] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/01/2013] [Accepted: 01/03/2013] [Indexed: 12/22/2022]
Abstract
BACKGROUND The association between body mass index as a measure of obesity and rectal cancer outcomes has been inconsistent. Radiologic measures of visceral adiposity using CT scans have not been well characterized among rectal cancer patients. The objective of this study was to examine quantitative radiologic measures of visceral obesity compared with body mass index in predicting patient outcomes among patients undergoing neoadjuvant chemoradiation and resection for locally advanced rectal cancers. STUDY DESIGN We identified 99 rectal adenocarcinoma patients treated with neoadjuvant chemoradiation and surgical resection. Visceral and subcutaneous fat areas, as well as perinephric fat thickness (PNF), were recorded and categorized as obese (body mass index ≥30, visceral fat area to subcutaneous fat area ratio [V/S] ≥0.4, or median PNF). The Kaplan-Meier method, log-rank test, and Cox proportional hazards models evaluated overall and disease-free survival differences by adiposity. RESULTS Viscerally obese rectal cancer patients (V/S >0.4 or PNF) were more likely to be older, male, and have pre-existing obesity-related conditions (eg, diabetes, hypertension, and/or hypercholesterolemia). Elevated V/S or PNF was associated with shorter disease-free survival (p = 0.02) or overall survival time (p = 0.047), respectively. Among patients with well to moderately differentiated tumors, visceral obesity was associated with poorer disease-free survival (V/S >0.4: adjusted hazard ratio = 5.0; 95% CI, 1.2-22.0). CONCLUSIONS Visceral fat area to subcutaneous fat area ratio and PNF were strongly associated with key preoperative metabolic comorbidities, and body mass index was not. Findings suggests that elevated visceral adiposity was associated with an increased risk of recurrence, which was most evident among patients with well to moderately differentiated tumors and those with incomplete response to neoadjuvant chemoradiation treatment. Quantitative measures of visceral adiposity warrant large-scale prospective evaluation.
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Affiliation(s)
- Whalen Clark
- Department of Surgery, University of South Florida College of Medicine, Tampa, FL 33612, USA
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Serum adipocyte fatty acid-binding protein is independently associated with complex coronary lesions in patients with stable coronary artery disease. Heart Vessels 2012; 28:696-703. [DOI: 10.1007/s00380-012-0310-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 11/16/2012] [Indexed: 01/22/2023]
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Value of dual-energy X-ray absorptiometry derived parameters vs anthropometric obesity indices in the assessment of early atherosclerosis in abdominally obese men. Obes Res Clin Pract 2012; 6:e263-346. [DOI: 10.1016/j.orcp.2011.08.155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 07/27/2011] [Accepted: 08/23/2011] [Indexed: 12/24/2022]
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