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Laser Ther. 2013;22(3):209-14. doi: 10.3136/islsm.22.209.

Preliminary results of pinpoint plantar long-wavelength infrared light irradiation on blood glucose, insulin and stress hormones in patients with type 2 diabetes mellitus.

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1
Faculty of Health Sciences, Ryotokuji University, Urayasu, Japan.

Abstract

BACKGROUND AND AIMS:

This study was aimed at the development of a novel noninvasive treatment system, "pinpoint plantar long-wavelength infrared light irradiation (PP-LILI)", which may be able to relieve mental stress and normalize blood glucose level via the reduction of stress hormones in type 2 (non-insulin-dependent) diabetes mellitus (DM) patients.

MATERIALS (SUBJECTS) AND METHODS:

Based on this hypothesis, the present study was undertaken to examine effects of PP-LILI on stress hormones (ACTH and cortisol), blood glucose, HbA1c, and insulin levels in 10 patients with type 2 DM. Each patient received PP-LILI of the foot for 15 minutes once weekly using a stress free apparatus (infrared wavelength, 9,000-12,000 nm/power 30 mW).

RESULTS:

In response to this therapy, ACTH (P<0.01) and cortisol (P<0.05) levels decreased significantly. Fasting blood glucose (P<0.05) and insulin (P<0.05) levels also decreased significantly along with a tendency for HbA1c to decrease.

CONCLUSIONS:

The present data raise the possibility that PP-LILI can normalize blood glucose levels by reducing stress hormones such as cortisol, which aggravate DM, and by improving insulin sensitivity, thereby contributing to prevention and treatment of DM.

KEYWORDS:

Pinpoint plantar long-wavelength infrared light irradiation (PP-LILI); blood glucose; relieving stress; stress hormones; type 2 (non-insulin-dependent) diabetes mellitus (DM)

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