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Huang H, Zheng X, Wen X, Zhong J, Zhou Y, Xu L. Visceral fat correlates with insulin secretion and sensitivity independent of BMI and subcutaneous fat in Chinese with type 2 diabetes. Front Endocrinol (Lausanne) 2023; 14:1144834. [PMID: 36909323 PMCID: PMC9999013 DOI: 10.3389/fendo.2023.1144834] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 02/07/2023] [Indexed: 03/14/2023] Open
Abstract
AIM Clinical heterogeneity exists in overall obesity and abdominal obesity in terms of insulin secretion and sensitivity. Further, the impact of visceral fat (VF) on the first- and second-phase insulin secretion (FPIS and SPIS) is controversial. We aim to investigate insulin secretion and sensitivity in Chinese patients with T2DM according to different BMI and VF levels. METHODS This study enrolled 300 participants. A dual bioelectrical impedance analyzer was used to assess the visceral and subcutaneous fat area (VFA and SFA). VF levels were categorized as normal or high, with the cutoff value of 100 cm2. FPIS and SPIS were evaluated by arginine stimulation test and standardized steamed bread meal tolerance test, respectively. β-cell function (HOMA2-β), insulin resistance (HOMA2-IR), and Gutt's insulin sensitivity index (Gutt-ISI) were also calculated. Spearman's correlation analysis and multivariate linear regression analysis were adopted for statistical analysis. RESULTS Participants were categorized into four groups: normal weight-normal VF, normal weight-high VF, overweight/obese-normal VF and overweight/obese-high VF. Multivariate linear regression showed that both VFA and SFA were correlated with FPIS, HOMA2-IR and Gutt-ISI after controlling for gender and diabetes duration. After further adjustment for BMI and VFA, some associations of SFA with insulin secretion and sensitivity disappeared. After adjustment for gender, diabetes duration, BMI and SFA, VFA was positively correlated with FPIS, SPIS and HOMA2-IR. Subjects with overweight/obese-high VF were more likely to have higher FPIS, HOMA2-IR and lower Gutt-ISI (all p < 0.05). CONCLUSION VF affects both FPIS and SPIS, and worsens insulin sensitivity independent of BMI and subcutaneous fat in Chinese patients with T2DM. CLINICAL TRIAL REGISTRATION http://www.chictr.org.cn, identifier ChiCTR2200062884.
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Affiliation(s)
- Haishan Huang
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xiaobin Zheng
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xiaoming Wen
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Jingyi Zhong
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Yanting Zhou
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Lingling Xu
- Department of Endocrinology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
- *Correspondence: Lingling Xu,
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Kawai Y, Waki K, Yamaguchi S, Shibuta T, Miyake K, Kimura S, Toyooka T, Nakajima R, Uneda K, Wakui H, Tamura K, Nangaku M, Ohe K. The Use of Information and Communication Technology-Based Self-management System DialBeticsLite in Treating Abdominal Obesity in Japanese Office Workers: Prospective Single-Arm Pilot Intervention Study. JMIR Diabetes 2022; 7:e40366. [PMID: 36441577 DOI: 10.2196/40366] [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: 06/19/2022] [Revised: 09/07/2022] [Accepted: 09/24/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Making lifestyle changes is an essential element of abdominal obesity (AO) reduction. To support lifestyle modification and self-management, we developed an information and communication technology-based self-management system-DialBeticsLite-with a fully automated dietary evaluation function for the treatment of AO. OBJECTIVE The objective of this study was to evaluate the preliminary efficacy and feasibility of DialBeticsLite among Japanese office workers with AO. METHODS A 2- to 3-month prospective single-arm pilot intervention study was designed to assess the effects of the intervention using DialBeticsLite. The information and communication technology system was composed of 4 modules: data transmission (body weight, blood pressure, blood glucose, and pedometer count); data evaluation; exercise input; and food recording and dietary evaluation. Eligible participants were workers who were aged ≥20 years and with AO (waist circumference ≥85 cm for men and ≥90 cm for women). Physical parameters, blood tests, nutritional intake, and self-care behavior were compared at baseline and after the intervention. RESULTS A total of 48 participants provided completed data for analysis, which yielded a study retention rate of 100%. The average age was 46.8 (SD 6.8) years, and 92% (44/48) of participants were male. The overall average measurement rate of DialBeticsLite, calculated by dividing the number of days with at least one measurement by the number of days of the intervention, was 98.6% (SD 3.4%). In total, 85% (41/48) of the participants reported that their participation in the study helped them to improve their lifestyle. BMI, waist circumference, and visceral fat area decreased significantly after the intervention (P<.001). In addition, the daily calorie intake reduced significantly (P=.02). There was a significant improvement in self-care behavior in terms of exercise and diet (P=.001). CONCLUSIONS Using DialBeticsLite was shown to be a feasible and potentially effective method for reducing AO by providing users with a motivational framework to evaluate their lifestyle behaviors.
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Affiliation(s)
- Yuki Kawai
- Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kayo Waki
- Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Satoko Yamaguchi
- Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tomomi Shibuta
- Department of Healthcare Information Management, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Kana Miyake
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,Department of Healthcare Information Management, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Shigeko Kimura
- Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Tsuguyoshi Toyooka
- Healthcare and Medical Business Smart-Life Solutions Department, NTT DOCOMO, Inc, Chiyoda City, Japan
| | - Ryo Nakajima
- Healthcare and Medical Business Smart-Life Solutions Department, NTT DOCOMO, Inc, Chiyoda City, Japan
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kazuhiko Ohe
- Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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3
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Shibuta T, Waki K, Miyake K, Igarashi A, Yamamoto-Mitani N, Sankoda A, Takeuchi Y, Sumitani M, Yamauchi T, Nangaku M, Ohe K. Preliminary Efficacy, Feasibility, and Perceived Usefulness of a Smartphone-Based Self-Management System with Personalized Goal Setting and Feedback to Increase Step Count among Workers with High Blood Pressure: Before-After Study (Preprint). JMIR Cardio 2022. [PMID: 37477976 PMCID: PMC10403795 DOI: 10.2196/43940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND High blood pressure (BP) and physical inactivity are the major risk factors for cardiovascular diseases. Mobile health is expected to support patients' self-management for improving cardiovascular health; the development of fully automated systems is necessary to minimize the workloads of health care providers. OBJECTIVE The objective of our study was to evaluate the preliminary efficacy, feasibility, and perceived usefulness of an intervention using a novel smartphone-based self-management system (DialBetes Step) in increasing steps per day among workers with high BP. METHODS On the basis of the Social Cognitive Theory, we developed personalized goal-setting and feedback functions and information delivery functions for increasing step count. Personalized goal setting and feedback consist of 4 components to support users' self-regulation and enhance their self-efficacy: goal setting for daily steps, positive feedback, action planning, and barrier identification and problem-solving. In the goal-setting component, users set their own step goals weekly in gradual increments based on the system's suggestion. We added these fully automated functions to an extant system with the function of self-monitoring daily step count, BP, body weight, blood glucose, exercise, and diet. We conducted a single-arm before-and-after study of workers with high BP who were willing to increase their physical activity. After an educational group session, participants used only the self-monitoring function for 2 weeks (baseline) and all functions of DialBetes Step for 24 weeks. We evaluated changes in steps per day, self-reported frequencies of self-regulation and self-management behavior, self-efficacy, and biomedical characteristics (home BP, BMI, visceral fat area, and glucose and lipid parameters) around week 6 (P1) of using the new functions and at the end of the intervention (P2). Participants rated the usefulness of the system using a paper-based questionnaire. RESULTS We analyzed 30 participants (n=19, 63% male; mean age 52.9, SD 5.3 years); 1 (3%) participant dropped out of the intervention. The median percentage of step measurement was 97%. Compared with baseline (median 10,084 steps per day), steps per day significantly increased at P1 (median +1493 steps per day; P<.001), but the increase attenuated at P2 (median +1056 steps per day; P=.04). Frequencies of self-regulation and self-management behavior increased at P1 and P2. Goal-related self-efficacy tended to increase at P2 (median +5%; P=.05). Home BP substantially decreased only at P2. Of the other biomedical characteristics, BMI decreased significantly at P1 (P<.001) and P2 (P=.001), and high-density lipoprotein cholesterol increased significantly only at P1 (P<.001). DialBetes Step was rated as useful or moderately useful by 97% (28/29) of the participants. CONCLUSIONS DialBetes Step intervention might be a feasible and useful way of increasing workers' step count for a short period and, consequently, improving their BP and BMI; self-efficacy-enhancing techniques of the system should be improved.
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Aso Y, Sagara M, Niitani T, Kato K, Iijima T, Tomaru T, Jojima T, Usui I. Serum high-molecular-weight adiponectin and response to dapagliflozin in patients with type 2 diabetes and non-alcoholic fatty liver disease. J Investig Med 2021; 69:1324-1329. [PMID: 34016738 DOI: 10.1136/jim-2020-001621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2021] [Indexed: 01/14/2023]
Abstract
A better baseline renal function is associated with a better response to sodium-glucose co-transporter-2 inhibitors in patients with type 2 diabetes. Low serum adiponectin is associated with visceral fat accumulation and hepatic steatosis. We investigated the relationship between baseline serum adiponectin and glycemic response to dapagliflozin in patients with type 2 diabetes and non-alcoholic fatty liver disease (NAFLD). In a randomized, active-controlled, open-label trial, 57 patients with type 2 diabetes and NAFLD were randomized to either the dapagliflozin (5 mg/d) group or the control group. Both groups were treated for 24 weeks. Serum high-molecular-weight (HMW) adiponectin was measured with an ELISA kit. Visceral fat area (VFA) was measured by dual bioelectrical impedance analysis. Hepatic steatosis was assessed by the controlled attenuation parameter (CAP) measured by a transient elastography (FibroScan). Treatment with dapagliflozin significantly decreased HbA1c from 8.4%±1.5% at baseline to 7.4%±1.2% at 24 weeks. Both VFA and CAP decreased in the dapagliflozin group. Baseline serum HMW adiponectin was negatively correlated with changes in HbA1c from baseline to 24 weeks with dapagliflozin therapy. In the multivariate analysis, baseline HbA1c (β=-0.559, p=0.002) and serum HMW adiponectin (β=0.471, p=0.010) were independent determinants for the change (reduction) in HbA1c. In the dapagliflozin group, the change in HbA1c was positively correlated with the changes of CAP, but negatively correlated with the change in serum HMW adiponectin. In conclusion, a lower serum level of HMW adiponectin was associated with a better response to dapagliflozin in patients with type 2 diabetes and NAFLD.Trial registration numberUMIN000022155.
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Affiliation(s)
- Yoshimasa Aso
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Masaaki Sagara
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Takafumi Niitani
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Kanako Kato
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Toshie Iijima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Takuya Tomaru
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Teruo Jojima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
| | - Isao Usui
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Tochigi, Japan
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Mizusawa T, Sato H, Kamimura K, Hashimoto S, Mizuno KI, Kamimura H, Ikarashi S, Hayashi K, Takamura M, Yokoyama J, Terai S. Change in body composition in patients with achalasia before and after peroral endoscopic myotomy. J Gastroenterol Hepatol 2020; 35:601-608. [PMID: 31461542 DOI: 10.1111/jgh.14847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/16/2019] [Accepted: 08/23/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Patients with achalasia experience weight loss because of dysphagia caused by impaired relaxation of the lower esophageal sphincter. This study aimed to use dual bioelectrical impedance analysis (BIA) to determine the change in bodyweight and body composition in patients with achalasia before and after peroral endoscopic myotomy (POEM). METHODS Patients with achalasia who underwent POEM from 2013 to 2018 (n = 72) were retrospectively analyzed for change in bodyweight before and after 3 months. Additionally, change in body composition was prospectively investigated in the final 10 of 72 patients using non-radiation dual BIA. RESULTS Twenty patients (27.8%) were underweight (body mass index < 18.5) before undergoing POEM. No clinical parameters were identified to be associated with the underweight condition before POEM and be predictive of an increase in bodyweight after POEM. Low visceral fat volume observed on dual BIA correlated closely with the result obtained using computed tomography (Pearson correlation coefficient: r = 0.850, P < 0.01). Patients with achalasia had a statistically significant increase in visceral (P < 0.01) and subcutaneous fat volumes (P < 0.01) after POEM. Skeletal muscle mass index slightly increased (P = 0.02), although the value after POEM was still low. No blood biomarkers were indicators for low bodyweight or low visceral fat volume. CONCLUSIONS Dual BIA is an effective non-invasive tool to evaluate the change in body composition of underweight patients with achalasia. Skeletal muscle volume was not enough after POEM, although a rapid increase in the intra-abdominal fat volume was observed. Additional studies are warranted to understand the pathological implications.
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Affiliation(s)
- Takeshi Mizusawa
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroki Sato
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Kenya Kamimura
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Satoru Hashimoto
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Ken-Ichi Mizuno
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroteru Kamimura
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Satoshi Ikarashi
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Kazunao Hayashi
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Masaaki Takamura
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Junji Yokoyama
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Shuji Terai
- Division of Gastroenterology, Niigata University Medical and Dental Hospital, Niigata, Japan
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Park J, Choi Y, Myoenzono K, Yoshikawa T, Tagawa K, Isobe T, Saotome K, Sankai Y, Shimojo N, Maeda S. Effects of aerobic exercise training on the arterial stiffness and intramyocellular or extramyocellular lipid in overweight and obese men. Clin Exp Hypertens 2019; 42:302-308. [PMID: 31392903 DOI: 10.1080/10641963.2019.1649686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Intramyocellular lipid (IMCL) and extramyocellular lipid (EMCL) of ectopic fat in muscles are associated with arterial stiffness in normal-weight individuals. Furthermore, aerobic exercise training-induced changes in IMCL or EMCL content are related to a decrease in arterial stiffness in elderly people. Though arterial stiffness is strongly related with obesity, but the effects of aerobic exercise training on IMCL or EMCL content, with a particular focus on arterial stiffness, in obese individuals remains unclear. Here, we investigated the effects of aerobic exercise training on IMCL or EMCL content and arterial stiffness in obese individuals. First, in a cross-sectional study, we examined the relationship between arterial stiffness and IMCL or EMCL content in 24 overweight and obese men. Secondly, we investigated the effects of aerobic exercise intervention on arterial stiffness and IMCL or EMCL content in 21 overweight and obese men. In the cross-sectional study, EMCL content was positively correlated with baPWV and β-stiffness index, whereas IMCL content was negatively correlated with baPWV. In the intervention study, there were no significant changes in baPWV, β-stiffness index, and IMCL and EMCL contents after aerobic exercise training. However, exercise-induced change in baPWV and β-stiffness index were positively correlated with changes in EMCL content. Moreover, the group of improvements in baPWV was only correlated significantly with reduced EMCL content. These results suggest that IMCL and EMCL contents may affect arterial stiffness in overweight and obese men.
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Affiliation(s)
- Jiyeon Park
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Youngju Choi
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
| | - Kanae Myoenzono
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Toru Yoshikawa
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.,Faculty of Health and Sport Sciences, Ryutsu Keizai University, Ibaraki, Japan
| | - Kaname Tagawa
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Tomonori Isobe
- Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - Kousaku Saotome
- Center for Cybernics Research, University of Tsukuba, Ibaraki, Japan
| | - Yoshiyuki Sankai
- Center for Cybernics Research, University of Tsukuba, Ibaraki, Japan
| | - Nobutake Shimojo
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Seiji Maeda
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
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Shimizu M, Suzuki K, Kato K, Jojima T, Iijima T, Murohisa T, Iijima M, Takekawa H, Usui I, Hiraishi H, Aso Y. Evaluation of the effects of dapagliflozin, a sodium-glucose co-transporter-2 inhibitor, on hepatic steatosis and fibrosis using transient elastography in patients with type 2 diabetes and non-alcoholic fatty liver disease. Diabetes Obes Metab 2019; 21:285-292. [PMID: 30178600 DOI: 10.1111/dom.13520] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/27/2018] [Accepted: 08/30/2018] [Indexed: 12/12/2022]
Abstract
AIMS To investigate the effects of dapagliflozin on liver steatosis and fibrosis evaluated in patients with type 2 diabetes and non-alcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS In a randomized, active-controlled, open-label trial, 57 patients with type 2 diabetes and NAFLD were randomized to a dapagliflozin group (5 mg/d; n = 33) or a control group (n = 24) and were treated for 24 weeks. Hepatic steatosis and fibrosis were assessed using transient elastography to measure controlled attenuation parameter (CAP) and liver stiffness, respectively. RESULTS Baseline liver stiffness measurement (LSM) was positively correlated with several markers and scoring systems for liver fibrosis. In week 24, there was a significant decrease in CAP from 314 ± 61 to 290 ± 73 dB/m (P = 0.0424) in the dapagliflozin group, while there was no significant change in the control group. In addition, LSM tended to decrease from 9.49 ± 6.05 to 8.01 ± 5.78 kPa in the dapagliflozin group. In 14 patients from this group with LSM values ≥8.0 kPa, indicating significant liver fibrosis, LSM decreased significantly from 14.7 ± 5.7 to 11.0 ± 7.3 kPa (P = 0.0158). Furthermore, serum alanine aminotransferase and γ-glutamyltranspeptidase levels decreased in the dapagliflozin group, but not in the control group, and visceral fat mass was significantly reduced in the dapagliflozin group. CONCLUSIONS Based on these findings, the sodium-glucose co-transporter-2 inhibitor dapagliflozin improves liver steatosis in patients with type 2 diabetes and NAFLD, and attenuates liver fibrosis only in patients with significant liver fibrosis, although the possibility cannot be excluded that a reduction in body weight or visceral adipose tissue by dapagliflozin may be associated with a decrease of liver steatosis or fibrosis.
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Affiliation(s)
- Masanori Shimizu
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Tochigi, Japan
| | | | - Kanako Kato
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Tochigi, Japan
| | - Teruo Jojima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Tochigi, Japan
| | - Toshie Iijima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Tochigi, Japan
| | | | - Makoto Iijima
- Department of Gastroenterology, Dokkyo Medical University, Tochigi, Japan
| | - Hidehiro Takekawa
- Centre of Medical Ultrasonics, Dokkyo Medical University, Tochigi, Japan
| | - Isao Usui
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Tochigi, Japan
| | - Hideyuki Hiraishi
- Department of Gastroenterology, Dokkyo Medical University, Tochigi, Japan
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8
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Lv X, Zhou W, Sun J, Lin R, Ding L, Xu M, Xu Y, Zhao Z, Chen Y, Bi Y, Lu J, Wang W, Ning G. Visceral adiposity is significantly associated with type 2 diabetes in middle-aged and elderly Chinese women: A cross-sectional study. J Diabetes 2017; 9:920-928. [PMID: 27787943 DOI: 10.1111/1753-0407.12499] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/25/2016] [Accepted: 10/21/2016] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Previous studies suggest that visceral fat is associated with type 2 diabetes (T2D) independent of body mass index (BMI). However, epidemiological data about the relationship between visceral fat and T2D are rare in Chinese. The aim of the present study was to investigate whether visceral fat area (VFA) is associated with T2D beyond and above BMI in the Chinese population. METHODS The present community-based cross-sectional study was conducted in 2013 on 4126 individuals (2545 women, 1581 men) aged ≥ 40 years, with T2D diagnosed according to 1999 World Health Organization criteria. The VFA was measured by a fat area analyzer using bioelectrical impedance analysis. RESULTS Participants were categorized into normal weight and overweight/obese groups according to BMI. Within each group, compared with women with below-median VFA, women with above-median VFA had a significantly increased risk of diabetes (odds ratio [OR] 1.88, 95% confidence interval [CI] 1.31-2.69 in the normal weight group; OR 2.10, 95% CI 1.54-2.85 in the overweight/obese group), whereas among men the corresponding associations were not significant in either group. Among women, after multivariable adjustment including BMI, each one standard deviation increase in VFA was significantly associated with a 45% higher risk of having T2D (OR 1.45, 95% CI 1.26-1.67), whereas among men BMI, not VFA, was independently associated with T2D (OR 1.18, 95% CI 1.02-1.37). CONCLUSIONS Visceral fat was independently associated with T2D in women regardless of obesity status, whereas in men BMI may have a more important effect on T2D than visceral fat.
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Affiliation(s)
- Xiaofei Lv
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiwei Zhou
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jichao Sun
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruhai Lin
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Ding
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Xu
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Xu
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiyun Zhao
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuhong Chen
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufang Bi
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jieli Lu
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- State Key Laboratory of Medical Genomics, Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Chinese Clinical Research Center for Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui-Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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9
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Demmer DL, Beilin LJ, Hands B, Burrows S, Pennell CE, Lye SJ, Mountain JA, Mori TA. Dual Energy X-Ray Absorptiometry Compared with Anthropometry in Relation to Cardio-Metabolic Risk Factors in a Young Adult Population: Is the 'Gold Standard' Tarnished? PLoS One 2016; 11:e0162164. [PMID: 27622523 PMCID: PMC5021262 DOI: 10.1371/journal.pone.0162164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 07/30/2016] [Indexed: 11/19/2022] Open
Abstract
Background and Aims Assessment of adiposity using dual energy x-ray absorptiometry (DXA) has been considered more advantageous in comparison to anthropometry for predicting cardio-metabolic risk in the older population, by virtue of its ability to distinguish total and regional fat. Nonetheless, there is increasing uncertainty regarding the relative superiority of DXA and little comparative data exist in young adults. This study aimed to identify which measure of adiposity determined by either DXA or anthropometry is optimal within a range of cardio-metabolic risk factors in young adults. Methods and Results 1138 adults aged 20 years were assessed by DXA and standard anthropometry from the Western Australian Pregnancy Cohort (Raine) Study. Cross-sectional linear regression analyses were performed. Waist to height ratio was superior to any DXA measure with HDL-C. BMI was the superior model in relation to blood pressure than any DXA measure. Midriff fat mass (DXA) and waist circumference were comparable in relation to glucose. For all the other cardio-metabolic variables, anthropometric and DXA measures were comparable. DXA midriff fat mass compared with BMI or waist hip ratio was the superior measure for triglycerides, insulin and HOMA-IR. Conclusion Although midriff fat mass (measured by DXA) was the superior measure with insulin sensitivity and triglycerides, the anthropometric measures were better or equal with various DXA measures for majority of the cardio-metabolic risk factors. Our findings suggest, clinical anthropometry is generally as useful as DXA in the evaluation of the individual cardio-metabolic risk factors in young adults.
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Affiliation(s)
- Denise L. Demmer
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, The University of Western Australia, Perth, Australia
- * E-mail:
| | - Lawrence J. Beilin
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, The University of Western Australia, Perth, Australia
| | - Beth Hands
- Institute for Health Research, The University of Notre Dame Australia, Perth, Australia
| | - Sally Burrows
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, The University of Western Australia, Perth, Australia
| | - Craig E. Pennell
- School of Women’s and Infants Health, The University of Western Australia, Perth, Australia
| | - Stephen J. Lye
- Lunenfeld-Tanenbaum Research Institute, University of Toronto, Toronto, Canada
| | - Jennifer A. Mountain
- School of Population Health, The University of Western Australia, Perth, Australia
| | - Trevor A. Mori
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, The University of Western Australia, Perth, Australia
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10
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Park KS, Lee DH, Lee J, Kim YJ, Jung KY, Kim KM, Kwak SH, Choi SH, Park KS, Jang HC, Lim S. Comparison between two methods of bioelectrical impedance analyses for accuracy in measuring abdominal visceral fat area. J Diabetes Complications 2016; 30:343-9. [PMID: 26620129 DOI: 10.1016/j.jdiacomp.2015.10.014] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To compare the accuracy of abdominal visceral fat area (VFA) measurements between abdominal dual bioelectrical impedance analysis (BIA) and whole-body BIA referenced to computed tomography (CT) measures. METHODS Abdominal VFAs were measured in 102 individuals: 59 men and 43 women with a mean age of 44.2 ± 16.3 years (range 21 - 76), body mass index 23.9 ± 7.8 kg/m(2) (range 18 - 35) using a DUALSCAN HDS-2000 machine (dual abdominal BIA) and an InBody720 machine (whole-body BIA). The VFA values from each machine were compared with those from CT under various conditions. RESULTS Mean abdominal VFAs were 116 ± 69 cm(2) by CT, 89 ± 47 cm(2) by dual abdominal BIA, and 84 ± 33 cm(2) by whole-body BIA. The former measure showed a higher correlation with the CT measure than the latter (r=0.89 vs. r=0.64, P<0.001). Both BIA methods tended to underestimate abdominal VFAs compared with CT scans when CT VFA was not small. The dual abdominal BIA had less bias than the whole-body BIA in the assessment of VFAs. The whole-body BIA was affected by subcutaneous fat area. CONCLUSIONS Dual BIA was more accurate in assessing abdominal VFA than whole-body BIA.
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Affiliation(s)
- Kyeong Seon Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong-Hwa Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - JieEun Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Ji Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Kyong Yeun Jung
- Department of Internal Medicine, College of Medicine Eulji University, Seoul, South Korea
| | - Kyoung Min Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Soo Heon Kwak
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Sung Hee Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Hak Chul Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
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11
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Yagi S, Kadota M, Aihara KI, Nishikawa K, Hara T, Ise T, Ueda Y, Iwase T, Akaike M, Shimabukuro M, Katoh S, Sata M. Association of lower limb muscle mass and energy expenditure with visceral fat mass in healthy men. Diabetol Metab Syndr 2014; 6:27. [PMID: 24571923 PMCID: PMC3945716 DOI: 10.1186/1758-5996-6-27] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 02/19/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND A high-calorie diet and physical inactivity, an imbalance between caloric intake and energy consumption, are major causes of metabolic syndrome (MetS), which manifests as accumulation of visceral fat and insulin resistance. However, the lifestyle-related factors associated with visceral fat mass in healthy men are not fully understood. METHODS We evaluated visceral fat area (VFA), skeletal muscle mass, caloric intake, and energy expenditure in 67 healthy male participants (mean age, 36.9 ± 8.8 years; body mass index 23.4 ± 2.5 kg/m2). RESULTS Multiple regression analysis showed that the total skeletal muscle mass (P < 0.001) were negatively and age (P < 0.001) were positively associated with VFA. Lower limb muscle mass (P < 0.001) was strongly associated with VFA. However, total caloric intake, total energy expenditure, and energy expenditure during exercise were not associated with VFA. CONCLUSIONS Skeletal muscle mass especially lower limb muscle mass negatively contributes to visceral fat mass in healthy men. Therefore, maintaining lower limb muscular fitness through daily activity may be a useful strategy for controlling visceral obesity and metabolic syndrome.
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Affiliation(s)
- Shusuke Yagi
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Muneyuki Kadota
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Ken-ichi Aihara
- Department of Medicine and Bioregulatory Sciences, The University of Tokushima Graduate School of Health Biosciences, Tokushima, Japan
| | - Koji Nishikawa
- Department of Rehabilitation, Tokushima University Hospital, Tokushima, Japan
| | - Tomoya Hara
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takayuki Ise
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuka Ueda
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takashi Iwase
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Akaike
- Department of Medical Education, The University of Tokushima Graduate School of Health Biosciences, Tokushima, Japan
| | - Michio Shimabukuro
- Department of Cardio-Diabetes Medicine, The University of Tokushima Graduate School of Health Biosciences, Tokushima, Japan
| | - Shinsuke Katoh
- Department of Rehabilitation, Tokushima University Hospital, Tokushima, Japan
| | - Masataka Sata
- Department of Cardiovascular Medicine, The University of Tokushima Graduate School of Health Biosciences, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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12
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Yamakage H, Ito R, Tochiya M, Muranaka K, Tanaka M, Matsuo Y, Odori S, Kono S, Shimatsu A, Satoh-Asahara N. The utility of dual bioelectrical impedance analysis in detecting intra-abdominal fat area in obese patients during weight reduction therapy in comparison with waist circumference and abdominal CT. Endocr J 2014; 61:807-19. [PMID: 24931739 DOI: 10.1507/endocrj.ej14-0092] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
An increase in intra-abdominal fat area (IAFA) is an essential component of metabolic syndrome (MetS). Waist circumference (WC) is not a precise measure of IAFA, and computed tomography (CT) is unsuitable for frequent monitoring. Here, we examined utility of a dual bioelectrical impedance analysis (Dual BIA) for measuring IAFA in obese patients during weight reduction. Fat distribution was measured by Dual BIA and CT in 100 obese outpatients. All fat areas including total, IAFA, and subcutaneous fat by Dual BIA were more closely correlated with those by CT than WC. Estimated IAFA by Dual BIA was significantly correlated with number of MetS components as well as CT, but WC was not. Furthermore, in 61 obese patients who received 6-month weight reduction therapy, estimated IAFA by Dual BIA showed an earlier and greater decrease as well as that by CT than WC and BMI. In addition, decrease in estimated IAFA by Dual BIA through weight reduction had a higher correlation with decrease in IAFA by CT, than WC. This study is the first to demonstrate that the change in estimated IAFA by Dual BIA was highly correlated with that in IAFA by CT during weight reduction therapy. Our findings also indicate that estimated IAFA by Dual BIA is, potentially, a better indicator of severity of MetS, cardiovascular risk factors, and effectiveness of weight reduction than WC, and equal to IAFA by CT. Estimated IAFA by Dual BIA may be useful for monitoring the effectiveness of weight reduction therapy in obese patients.
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Affiliation(s)
- Hajime Yamakage
- Division of Diabetic Research, Clinical Research Institute, National Hospital Organization, Kyoto Medical Center, Kyoto 612-8555, Japan
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13
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YAMAGUCHI TF, KATASHIMA M, WANG LQ, KURIKI S. Improvement of Image Reconstruction of Human Abdominal Conductivity by Impedance Tomography Considering the Bioelectrical Anisotropy. ADVANCED BIOMEDICAL ENGINEERING 2012. [DOI: 10.14326/abe.1.98] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Tohru F. YAMAGUCHI
- Health Care Food Research Laboratories, Kao Corporation
- Graduate School of Advanced Science and Technology, Tokyo Denki University
| | | | - Li-Qun WANG
- Research Center for Advanced Technologies, Tokyo Denki University
| | - Shinya KURIKI
- Graduate School of Advanced Science and Technology, Tokyo Denki University
- Research Center for Advanced Technologies, Tokyo Denki University
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14
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Nakao YM, Miyawaki T, Yasuno S, Nakao K, Tanaka S, Ida M, Hirata M, Kasahara M, Hosoda K, Ueshima K, Nakao K. Intra-abdominal fat area is a predictor for new onset of individual components of metabolic syndrome: MEtabolic syndRome and abdominaL ObesiTy (MERLOT study). PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2012; 88:454-461. [PMID: 23060233 PMCID: PMC3491080 DOI: 10.2183/pjab.88.454] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 08/24/2012] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To investigate the significance of intra-abdominal fat area (IAFA) on new onset of individual components of the metabolic syndrome: high blood pressure, dyslipidemia, or hyperglycemia. METHODS We conducted a longitudinal study using checkup data of a hospital from 1994 to 2010. Of 25,255 subjects, we examined 1,380 Japanese, who underwent computed tomography to measure IAFA and had no metabolic syndrome components at baseline. RESULTS During 3.6 years of the mean follow-up period, one of metabolic syndrome components occurred in 752 subjects. Of three components, high blood pressure was more prevalent. The multiple Cox regression analysis disclosed that IAFA is significantly associated with onset of metabolic syndrome components (HR: 1.05 per 10 cm(2), 95%CI: 1.03-1.07). This finding was independent of BMI, and significant even in non-obese individuals with body mass index <25 kg/m(2). CONCLUSIONS MERLOT study demonstrates that IAFA is an independent predictor for new onset of individual components of the metabolic syndrome, even in non-obese healthy Japanese.
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Affiliation(s)
- Yoko M Nakao
- Department of Medicine and Clinical Science, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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