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Background and aims:The current investigation 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 reduce stress-related hormones. Materials (Subjects) and methods: We compared the subcutaneous temperature, blood pressure, the degree of secretion of stress hormones before and after pinpoint irradiations (wavelength: 8-11 µm; output: 30mW). The study enrolled 15 subjects (Japanese healthy adults; 8 males, 7 females; average age 47.8 ± 14.6 years). Two parts of the planter region were irradiated for 15 min respectively. The stress markers such as ACTH, salivary amylase and cortisol were measured. As well, core body temperature and blood pressure were analyzed before and after the irradiation. Results: A series of experiments revealed increased body temperature, decreased levels of blood pressure and stress markers described above after the irradiation. Conclusions: These results clearly suggest that the PP-LILI system will be quite useful for relieving stress and improvement of homeostatic functions in the body.

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.

Background and aims:Mild thermal treatment with "Pinpoint Plantar Long-wavelength Infrared Light Irradiation (PP-LILI)" named as Stress-Free Therapy ® increases peripheral-deep body temperature and blood flow, and improves multiple disorders including hyperpiesia, type II diabetes and cardiovascular patients. Immunomodulatory effects of PP-LILI were investigated. Materials and methods: Seven healthy individuals and 4 people with underlying medical condition (UMC) participated in this study. Participants were given PP-LILI stimuli twice a week over 3 weeks and followed with placebo stimuli over 3 weeks. This set of sessions was repeated 3 times. For analyses, fresh peripheral mononuclear cells from participants were stained with fluorescencedye conjugated monoclonal antibodies and changes in populational compositions and IL-10 expression levels were observed by flow cytometry. Results: Distinct expression of IL-10 in lymphocytes was induced by PP-LILI from the second session in the healthy individuals. This induction was terminated during the following placebo sessions. PP-LILI induced activation of CD19 + CD24 hi CD38 hi regulatory B cells in every session prior to induce the IL-10 in major lymphocytes. Activated regulatory B cells in the individuals with UMC decreased as same levels of healthy individuals after second PP-LILI session and re-activated with the stimuli. Significant population changes in neither regulatory T cells nor proinflammatory IL-17A expressing CD4 + T cells were observed. Conclusions: PP-LILI is a potent immunomodulatory inducer that activates regulatory B cells and consequent IL-10 expression in lymphocytes. Moreover, its stimulatory intervals down-regulate the higher activation of regulatory B cells and lymphocyte's IL-10 expression occurred by UMC to the healthy people's level.

Continuous monitoring of serum solute concentrations throughout a dialysis session could be beneficial for the prevention of intradialytic morbidity such as hypotension and for the confirmation of dialysis adequacy. In this paper, we introduce a new on-line monitoring system for use during hemodialysis sessions, a system developed for the continuous observation of serum biochemical data. Using this system, we also show the possibility of clinical applications. Intradialytic hypotension could be prevented by the observation of filtrate sodium concentration and the control of dialysate sodium concentration. The termination of a dialysis session could be decided by the observation of the filtrate urea nitrogen, on the basis of the Kt/V urea ratio. Because monitoring for other solutes such as calcium and creatinine is theoretically available, clinical applications will continue to increase in the future.

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