Background: The traditional Japanese style of soaking in a hot bath is a lifestyle custom for many citizens, no study had ever investigated the association between bathing as a lifestyle practice and the onset of long-term depression. Through a large-scale six-year longitudinal study, we aimed to determine whether tub bathing as a lifestyle custom plays a role in preventing the onset of long-term depression.  Methods: Of 11,882 individuals who responded to surveys conducted in 2010 and 2016 as part of the Japan Gerontological Evaluation Study (the JAGES) project, we analyzed 6,452 and 6,465 individuals for whom information was available regarding summer bathing frequency and winter bathing frequency, respectively; all of these individuals were independent, had a Geriatric Depression Scale (hereafter, “GDS”) score of ≤4, and did not suffer from depression. The cohort study involved dividing participants into a group of those who bathed 0-6 times a week and a group of those who bathed ≥7 times a week and determining the percentages of individuals who developed depression based on their GDS scores six years later. Multiple logistic regression analysis was performed to determine odds ratios for the association between depression onset and tub bathing.   Results: For individuals who tub bathed ≥7 times a week, the odds ratios for depression onset versus individuals who bathed 0-6 times a week in summer and winter were 0.84 (95% confidence interval, 0.64-1.10) and 0.76 (95% confidence interval, 0.59-0.98), respectively. Tub bathing ≥7 times a week in winter significantly reduced the risk of depression onset.  Conclusions: New-onset depression was shown to be infrequent in older adults who bathe in a tub frequently. Tub bathing was suggested to potentially contribute to the prevention of depression in the elderly.

  Background: The traditional Japanese style of soaking in a hot bath is a lifestyle custom for many citizens, no study had ever investigated the association between bathing as a lifestyle practice and the onset of long-term depression. Through a large-scale six-year longitudinal study, we aimed to determine whether tub bathing as a lifestyle custom plays a role in preventing the onset of long-term depression.  Methods: Of 11,882 individuals who responded to surveys conducted in 2010 and 2016 as part of the Japan Gerontological Evaluation Study (the JAGES) project, we analyzed 6,452 and 6,465 individuals for whom information was available regarding summer bathing frequency and winter bathing frequency, respectively; all of these individuals were independent, had a Geriatric Depression Scale (hereafter, “GDS”) score of ≤4, and did not suffer from depression. The cohort study involved dividing participants into a group of those who bathed 0-6 times a week and a group of those who bathed ≥7 times a week and determining the percentages of individuals who developed depression based on their GDS scores six years later. Multiple logistic regression analysis was performed to determine odds ratios for the association between depression onset and tub bathing.   Results: For individuals who tub bathed ≥7 times a week, the odds ratios for depression onset versus individuals who bathed 0-6 times a week in summer and winter were 0.84 (95% confidence interval, 0.64-1.10) and 0.76 (95% confidence interval, 0.59-0.98), respectively. Tub bathing ≥7 times a week in winter significantly reduced the risk of depression onset.  Conclusions: New-onset depression was shown to be infrequent in older adults who bathe in a tub frequently. Tub bathing was suggested to potentially contribute to the prevention of depression in the elderly.

There are few reports on the effects for children using the diagnostic method of Kampo medicine (called sho : pattern diagnosis). Therefore, we investigated the effects of combination therapy with Kampo medicines prescribed by specialists in this ancient form of medicine to children who were refractory to modern medicine. This was a retrospective observational study of 98 children (pre-school children (PS ; n = 21), elementary school students (ES ; n = 37) and junior high school students (JS ; n = 40)) younger than 16 years old at the first visit to our department of Chiba University hospital between April 2007 and April 2017. We collected the following information from their medical records : background, chief complaint, referral source, and efficacy of Kampo medicines. We evaluated efficacy for Kampo medicine as follows : Higher improvement (HI) (symptoms improved by 2/3 or more) ; Improvement (I) (symptoms improved by 1/3-2/3) ; Mild improvement (MI) (symptoms improved by 1/3 or less) ; constant ; aggravated ; and unknown or first visit only. Positive response (HI, I, and MI) due to Kampo medicines was observed in 76% (75/98) of patients. No aggravations were observed. The chief complaint by age was skin diseases in PS, digestive diseases in ES, and cardiovascular diseases in JS. Pediatrics was the primary referral in all ages, while 30% of JS were referred from psychiatry. Kampo medicine was significantly more effective for those in PS and ES compared to those in JS (p = 0.025). Combined use of Kampo medicine and modern medicine therapy is useful for children refractory to modern medicine.

Hospitalized patients often have insomnia, and in many cases it is necessary to administer hypnotics. Although the hypnotics currently used in Japan are mainly benzodiazepine receptor agonists, there is an associated risk of falling due to muscle relaxant action, and carryover effect. It is believed that orexin receptor antagonists, which have a different mechanism of action from conventional hypnotics, have no muscle relaxant action and are thus considered to be much safer. Therefore, in this study we compared fall rate according to the class of hypnotics that the patient had been taking. 　　We analyzed hospitalized patients taking orexin receptor antagonists (ORB), benzodiazepines (BZDs), and non-BZDs, who had falls and were treated in our hospital from April 1, 2017 to December 31, 2017. Patients were grouped according to the drug they were taking before the fall occurred and the fall rate was calculated and compared. The total number of falls in the target patients was 45, and the total number of people prescribed hypnotics in the study period was 1682. Fall rate by classification of hypnotics was the lowest in the ORB group at 1.45％, which was significantly lower than that of the BZD group, suggesting the possibility that ORBs have minimal influence on falls. In addition, the fall rate in the non-BZD group was significantly lower than that of the BZD group.

As the elderly society grows, polypharmacy becomes a problem in clinical practice. Until now, some Kampo treatments have been reported to be useful for polypharmacy caused by western-­style medicines. But this report shows that Kampo medicines in themselves could be the cause of polypharmacy. In fact, multiple Kampo prescriptions from several medical agencies are given to one patient in Japan. From the view point of proper use of Kampo prescriptions, medical experts and entire business fields related to Kampo medicine should take measures rapidly for so­-called “Kampo polypharmacy” after analyzing the actual situation.

We experienced a patient, who complained severe fatigue in spite of adequate hormonal supplement after pituitary tumor removal, was successfully treated with Kampo therapy. The pharmacological effect of this Kampo formulation i.e. bukuryoshigyakuto is still unknown, but this formulation has been used for pre-shock conditions in the terminal stage of infectious diseases. According to the description in the classic textbook, this formulation is suggested to encourage metabolic function and maintain core temperature of the human body. The authors propose that Kampo medicine is a hopeful alternative way in the management of such patients.

We investigated the number of drugs and pharmaceutical cost among 159 patients prescribed Western medicine and hospitalized from August 2006 to August 2015 in the Department of Oriental (Kampo) Medicine at Chiba University Hospital. The number of drugs used in Western medicine among improved patients significantly decreased from 5.6 ± 3.6 at hospitalization to 5.3 ± 3.5 at discharge, but the number of Kampo medicine drugs was not changed. The total number of drugs including both Western medicine and Kampo medicine significantly decreased from 7.0 ± 3.8 to 6.7 ± 3.6. The number of drugs used in Western medicine among nochanged patients decreased from 5.1 ± 3.4 at hospitalization to 5.0 ± 3.7 at discharge, but the number of Kampo medicine drugs significantly increased from 1.0 ± 0.0 at hospitalization to 1.3 ± 0.5. The total number of drugs including both Western medicine and Kampo medicine increased from 6.1 ± 3.4 to 6.3 ± 3.9. We thus conclude that a combination of Kampo medicine with Western medicine can be useful for reducing the number of drugs related to polypharmacy. To achieve these results, it is essential to use the concept of sho (a way of pattern recognition of a patient's symptoms in Kampo medicine).

We experienced 8 cases of children who presented with somatic complaints and found it difficult to attend school successfully treated with Kampo medicine. We evaluated them objectively by using the evaluation scale in the guideline for medical care of school refusal. Four cases were orthostatic dysregulation, 2 cases were migraine, 1 case was involuntary movement in upper abdomen and the other case was autonomic dysfunction. Kampo medicines were selected according to conventional method, so-called sho. Among 8 cases, 5 cases had a major response, 2 cases had a minor response and one case had no beneficial response. These results suggest that Kampo therapy can be effective therapeutic means. Kampo therapy is quite personalized and beneficial especially for children who find it difficult to attend school and need individualized care. This is the first report evaluating many cases objectively by using the evaluation scale and there have been no reports similar to ours. We have to continue to enlighten general pediatricians about the effectiveness of Kampo therapy.

In Kampo medicine, abdominal palpation is essential procedure to make the diagnosis of Sho. We experienced two cases of abdominal aortic aneurysm which are diagnosed by means of abdominal palpation. The coexistence of aneurysm and the sign of abdominal palpitation is extremely rare, but every clinician should pay attention to this fact.

A Kampo formulation boibukuryoto is originally described in the classic textbook “Kinkiyouryaku,” which indication is involuntary muscle movement (IMM) of extremities, similar to the movement of leaves of an elm tree. We experienced two cases of IMM successfully treated with boibukuryoto. This report presented the details of these two cases of IMM and the results of surface electromyogram (EMG). There has never been a report of boibukuryoto for the treatment of IMM. The results of EMG indicate that IMM may be associated with myokymia.