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Mild Electrical Stimulation with Heat Shock Reduces Visceral Adiposity and Improves Metabolic Abnormalities in Subjects with Metabolic Syndrome or Type 2 Diabetes: Randomized Crossover Trials.

Abstract：

BACKGROUND:The induction of heat shock protein (HSP) 72 by mild electrical stimulation with heat shock (MES + HS), which improves visceral adiposity and insulin resistance in mice, may be beneficial in treating metabolic syndrome (MS) or type 2 diabetes mellitus (T2DM). METHODS:Using open-label crossover trials, 40 subjects with MS or T2DM were randomly assigned using computer-generated random numbers to 12 weeks of therapeutic MES + HS followed by 12 weeks of no treatment, or vice versa. During the intervention period, physical and biochemical markers were measured. FINDINGS:Compared to no treatment, MES + HS treatment was associated with a significant decrease in visceral adiposity (- 7.54 cm(2) (- 8.61%), 95% CI - 8.55 to - 6.53 (p = 0.037) in MS, - 19.73 cm(2) (- 10.89%), 95% CI - 20.97 to - 18.49 (p = 0.003) in T2DM). Fasting plasma glucose levels were decreased by 3.74 mg/dL (- 5.28%: 95% CI - 4.37 to - 3.09 mg/dL, p = 0.029) in MS and by 14.97 mg/dL (10.40%: 95% CI - 15.79 to 14.15 mg/dL, p < 0.001) in T2DM, and insulin levels were also reduced by 10.39% and 25.93%, respectively. HbA1c levels showed a trend toward reduction (- 0.06%) in MS, and was significantly declined by - 0.43% (95% CI - 0.55 to - 0.31%, p = 0.009) in T2DM. HbA1c level of less than 7.0% was achieved in 52.5% of the MES + HS-treated T2DM patients in contrast to 15% of the non-treated period. Several insulin resistance indices, inflammatory cytokines or adipokines, including C-reactive protein, adiponectin, and tumor necrosis factor-α, were all improved in both groups. In isolated monocytes, HSP72 expression was increased and cytokine expression was reduced following MES + HS treatment. Glucose excursions on meal tolerance test were lower after using MES + HS in T2DM. INTERPRETATION:This combination therapy has beneficial impacts on body composition, metabolic abnormalities, and inflammation in subjects with MS or T2DM. Activation of the heat shock response by MES + HS may provide a novel approach for the treatment of lifestyle-related diseases. FUNDING:Funding for this research was provided by MEXT KAKENHI (Grants-in-Aid for Scientific Research from Ministry of Education, Culture, Sports, Science and Technology, Japan).

journal_name

EBioMedicine

journal_title

EBioMedicine

authors

Kondo T,Ono K,Kitano S,Matsuyama R,Goto R,Suico MA,Kawasaki S,Igata M,Kawashima J,Motoshima H,Matsumura T,Kai H,Araki E

doi

10.1016/j.ebiom.2014.11.001

subject

Has Abstract

pub_date

2014-11-11 00:00:00

pages

80-9

issue

issn

2352-3964

pii

S2352-3964(14)00025-5

journal_volume

pub_type

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Mild Electrical Stimulation with Heat Shock Reduces Visceral Adiposity and Improves Metabolic Abnormalities in Subjects with Metabolic Syndrome or Type 2 Diabetes: Randomized Crossover Trials.