Objective: We investigated the effects of Coix-seed Reactive Derivatives (CRD) on fibroblast proliferation and collagen production. Methods: Various concentrations of CRD (0.00001%, 0.0001%, 0.001%, 0.01%, 0.1%, 1%) were added to human fibroblasts, and changes in cell count and extracellular collagen production were measured. Results: Fibroblasts proliferated by the addition of CRD, peaked at about 1.7 times when the CRD concentration was 0.0001%, and then decreased as the addition concentration increased. On the other hand, the collagen concentration in the extracellular matrix of fibroblasts increased as the CRD addition concentration increased, and the collagen concentration increased sharply at 0.1% of CRD concentration or more. Conclusion: It was suggested that CRD has a function of increasing the proliferation of fibroblasts and collagen production.

We evaluated the long-term safety of eight adult volunteers (male 7, female 1: average age 47.4 years) ingesting powdered foods containing Coix-seed Reactive Derivatives (CRD/2.2g/day or 4.4g/day) for 1 year 8 months to 5 years (average 2 years 9 months). Body weight, vital signs (blood pressure, pulse rate), peripheral blood test, blood biochemical test, etc. were observed. We also investigated the presence or absence of side effects. The results showed no notable changes in vital signs or blood test results. From the above, it was speculated that long-term intake of CRD would not pose a safety problem. We plan to continue the study by increasing the number of observation cases in the future.

We evaluated the effect of Coix-seed Reactive Derivatives (CRD) on cold sensitivity of female hands and feet. Ninety females were assigned randomly to 3 groups and CRD(2g/day, 4g/day or placebo) was administrated for 8weeks. Significant improvement of cold sensitivity was observed in both the 2g/day and 4g/day groups. It was speculated that a naringenin and a quercetin as active ingredients of adlay hull may play a critical role in ameliorating effect on blood flow.

To clarify the functions of Coix-seed Reactive Derivatives(CRD), we observed 2 cases of plantar keratosis (case 1. 34 years of age, female/ case 2. 29 years of age, female) successfully cured by intake of CRD for several months. Although CRD intake seemed to be effective in these cases, further studies are needed to define the optimal dose and duration.

To clarify the functions of Coix-seed Reactive Derivatives(CRD), we observed 3 cases of refractory atopic dermatitis(case 1. 25 years of age, male/ case 2. 40 years of age, female/ case 3. 5 years of age, male) successfully cured by intake of CRD. Although CRD intake seemed to be effective in all cases, further studies are needed to define the optimal dose and duration.

To clarify the functions of Coix-seed Reactive Derivatives(CRD), we observed 2 cases of plantar wart (case 1. 8 years of age, female/ case 2. 26 years of age, female) successfully cured by intake of CRD for several months. Although CRD intake seemed to be effective in these cases, further studies are needed to define the optimal dose and duration.

In this report, we presented the case of a 45-year-old man who developed intractable eczema on the thumb-index interdigital fold for over 3 years. Coix-seed Reactive Derivatives(CRD) was administrated at a dose of 2.2g/day per day. The lesion cured markedly within 7 months. Although CRD intake seemed to be effective in this case, further studies are needed to define the optimal dose of this food.

In this report, we presented the case of a 33-year-old woman who developed excoriation of cuticle on both fingers for over several years. Coix-seed Reactive Derivatives(CRD) was administrated at a dose of 4.0g/day per day. The lesion cured markedly within 8 weeks. Although CRD intake seemed to be effective in this case, further studies are needed to confirmation the efficacy of this food.

We conducted a clinical trial in 26 healthy adult women to evaluate the effect of foods containing placental extract ingested for 12 consecutive weeks on 9 constitutional types in Traditional Chinese Medicine.The body constitution analysis set consisted of 23 subjects (excluding 3 dropouts). Twelve-week ingestion of placental extract-containing foods improved individual scores for “Gentleness” type, a healthy constitution, and “Qi-deficiency,” “Yang-deficiency,” “Yin-deficiency,” “Wet-heat” and “Qi-depression” types, which are all mibyou constitution.The safety analysis set consisted of 25 subjects (excluding 1 dropout). Only one subject experienced an adverse event (exacerbation of urticaria, an underlying disease). No other safety concerns arose.

With the cooperation of Kurobe City, we conducted a basic survey using the nine classification of constitution and an intervention survey using a constitutional guidance program. The basic survey was conducted by the Kurobe group (Kurobe River alluvial fan spring water drinker n=155, 60.6±10.4 years old) and the non-Kurobe group (normal tap water drinker n=99, 50.7±12.8 living in the Hokuriku region without Kurobe City). A total of three surveys were conducted using the constitution Questionnaire (CCMQ-J). As a result, the Gentleness type, which is usually called the healthy constitution, was clearly higher in the Kurobe group, with 44.6 % in the Kurobe group and 22.5 % in the non-Kurobe group. In the proportion of each biased constitution(Mibyo constitution), the Kurobe group had less Wet-heat type (4.5 % vs 11.8 %), Qi-depression type (5.4 % vs 10.7 %), Yin-deficiency type (7.1 % vs 12.3 %) , and Phlegm-wetness type (5.8 % vs 9.6 %) than the non-Kurobe group. After the basic survey was completed, the Kurobe group was randomly divided into two groups, an intervention group (n=65, 62.3±9.3 years old) and a non-intervention group (n=68, 62.7±9.8 years old), and compared with the non-Kurobe group (control group) (n=80, 51.9±13.6 years old). The survey design was a simple comparative study, and the primary endpoint was a comparative study of changes in constitutional scores before and after intervention. As a result, in the Yang-deficiency type, a significant difference was observed between the intervention group, the non-intervention group and the control group at the first time after the intervention (One-way ANOVA p=0.04). No change was seen in the second survey after the intervention. In the comparison of Phlegm-wetness type between the three groups, there was a tendency in the amount of change in the constitutional score (One-way ANOVA p=0.087). From the above, it was suggested that the constitutional survey can not only grasp the health and the pre-symptomatic state, but also improve the pre-symptomatic by combining the guidance methods according to the constitution.