A Study on the Useful Components of Adlay (<i>Coix lachryma-jobi</i> L. <i>var.ma-yuen</i> Stapf) / 日本補完代替医療学会誌

Hot water extract of adlay (<i>Coix lachryma-jobi</i> L. <i>var. ma-yuen</i> Stapf) seed, commonly called Yokuinin, has been used as herbal medicine for treating verruca vulgaris, et al. Although there have been a number of studies on the usefulness of Yokuinin, the pharmacological assessment of its husk, pellicle, and astringent skin remains unclear. In this line, we evaluated the effect of methanol extract from all parts of adlay grain (seed, husk, pellicle, astringent skin) on cancer cells and identified its useful chemical components. Results revealed that a fraction of the extract have weak growth-suppressing activity on human cervical cancer cell line (HeLa cell). In particular, 5,7-dihydroxychromone and coixol were isolated and identified from the active fraction. This indicates the possible cancer chemopreventive efficacy of methanol extract from adlay. Moreover, further tests are needed to determine the role of 5,7-dihydroxychromone.<br>

Pilot Study of Antioxidant Mixture (Vitamin E, Pycnogenol and Squalene) in Healthy Smokers: Inhibitory Effect on Oxidative DNA Damage / 日本補完代替医療学会誌

Oxidative stress is considered to contribute to degenerative disease. The urinary excretion of the DNA repair product 8-hydroxy-2′-deoxyguanosine (8-OHdG) is proposed as a noninvasive biomarker of current oxidative stress <i>in vivo</i>. We investigated the effect of an antioxidant mixture on urinary 8-OHdG excretions in 12 otherwise healthy smokers. During the intervention period for 2 weeks, subjects consumed four capsules of PICACE^® (Pycnogenol^® 15 mg/capsule, Vitamin E; 56.1 mg/capsule, Squalene; 138.9 mg/capsule) per day. On days 0 (pre-internal use), 3, 7, 14, and 44, morning urine samples were collected. The urinary 8-OHdG was measured using high-performance liquid chromatography (HPLC). The urinary 8-OHdG level on day 3 was significantly reduced compared to day 0. The level of 8-OHdG after a washout period for PICACE^® (days 44) returned to day 0 baseline. These preliminary data suggest that PICACE^® supplements can protect smokers from oxidative stress and possibly reduce disease risk caused by free radicals associated with smoking.<br>

Effects of Exercise Therapy Aiming at Improvement in Physical Fitness on Dyspnea and Health-Related Qol in Patients with Chronic Obstructive Pulmonary Disease / 体力科学

Pulmonary rehabilitation is a common therapy for improving both exercise tolerance and quality of life (QoL) in patients with chronic obstructive pulmonary disease (COPD) . Although exercise is an important rehabilitation strategy, walking, treadmill use, bicycling and respiratory muscle training can be monotonous. A comprehensive exercise program that includes recreational activities may be a more effective means to decrease the occurrence of dyspnea during daily activities and improve QoL in patients with COPD. The purpose of this study was to investigate the effects of our exercise therapy, including recreational activities and respiratory muscle training, on dyspnea and health related QoL (HRQL) in COPD patients. Thirty-eight male patients with COPD were randomly assigned to a control (C) (70.1±6.4yr) (n=12) . pulmonary rehabilitation (PR) (70.3±8.3yr) (n= 16), or exercise (EX) (68.7±4.6yr) (n=10) group. The following evaluations were performed at baseline and at 8 weeks: (1) cycle ergometer test ; (2) 6-min walking distance : (3) physical fitness (4) pulmonary function ; (5) dyspnea : and (6) HRQoL (SF-36) . The C group showed no significant changes in physical fitness, pulmonary function, dyspnea, and HRQoL scores throughout the observation period. There was a significant (<I>P</I><0.05) improvement in 6-min walking distance. physical fit-ness, maximum rnspiratory pressure (MIP), and HRQoL for the PR group. The EX group demons-trated a significant (<I>P</I><0.05) improvement in physical fitness, maximum expiratory pressure (MEP), dyspnea, and HRQoL. Moreover, the degree of improvement in each variable was greater for EX than for PR. There were significant (<I>P</I><0.05) correlations between MIP and FEV<SUB>1.0</SUB> (r=0.65), and between MEP and FEV<SUB>1.0</SUB> (r=0.43) . Based on these results, it appears that our comprehensive exercise program, including recreational activities and respiratory muscle training, improves physical fitness, pulmonary function, dyspnea, and quality of life in COPD patients.

Applicability of functional fitness tests in older persons with chronic disease / 体力科学

The purpose of this study was to examine the validity of physical performance tests (test battery) for assessing functional fitness required for activities of daily life in older persons with chronic disease. This test battery consisted of 4 items: arm curl, walking around two cones, moving beans with chopsticks, and functional reach. Seventy-one persons (aged 66.7±7.8 yr) with either hemiplegia, Parkinson's disease (PD), or chronic obstructive pulmonary disease (COPD) served as subjects. There were significant differences among standard test scores in each rate of progression of the disease in all hemiplegia groups (Stages III, IV, V), and COPD groups (Stages 1, 2, 3) (Kruskal-Wallis'<I>H</I>=22.3 and 7.3, respectively) . In PD groups, there was no significant difference between standard scores in Stages II and III (Mann-Whitney's <I>U</I>=4.0) . However, the rank order correlation coefficient between the ranking in standard test score and the ranking in physical independence assessed by a medical doctor and a public health nurse was significant (ρ=0.57, <I>P</I><0.05) . All tests were safely applied for all subjects. These results suggest that our test battery may be applicable to a majority of older persons with various chronic diseases. Furthermore, the variability of standard test scores was greater than the clinical subjective ratings by Stage, which suggests that such a classification may provide a better description of disease progress/functional fitness.