1.Changes in Hematologic and Physiologic Values Before and After Hot Water Bathing in Healthy Men
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2008;71(3):155-160
To clarify the effects of full bathing at 42°C for 10min, we measured hematologic (white blood cells, red blood cells, hemoglobin, hematocrit, platelets, whole blood passage time) and physiologic (body weight, blood pressure, pulse rate) values of 10 healthy men aged 28 to 37 years. Data were collected before, immediately after, and 60min after bathing, and values were compared using a one-factor ANOVA.
No significant changes in hemotologic values were found among the three measurement timepoints. Regarding physiologic values, no significant changes in body weight and systolic blood pressure were found among the three measurement time-points. However, diastolic blood pressure decreased after bathing (53.0±9.8mmHg) compared with that before bathing (76.2±10.3mmHg), then increased again 60min after bathing (71.1±10.6mmHg) compared with that immediately after bathing. Furthermore, pulse rate increased significantly after bathing (101.3±10.3bpm) compared with that before bathing (69.0±5.9bpm), and then decreased significantly 60min after bathing (69.8±7.0bpm) compared with that immediately after bathing.
Our results indicate that hot water bathing does not influence hematologic values, body weight, or systolic blood pressure in healthy men. Although diastolic blood pressure and pulse rate changed significantly after bathing, they returned to baseline values 60min after bathing. The changes in hematologic and physiologic values may be explained by the maintenance of the body's homeostasis.
2.Effects of Hot Deep Seawater Bathing on the Immune Cell Distribution in Peripheral Blood from Healthy Young Men
Yasuo TSUCHIYA ; Tomihiro SHIMIZU ; Teruyuki TAZAWA ; Kazutoshi NAKAMURA ; Masaharu YAMAMOTO
Environmental Health and Preventive Medicine 2003;8(5,6):161-165
Objectives: Deep seawater (DSW) utilization technology has been developed for the fields of medicine and health, among others. To clarify the health effects of DSW as compared with surface seawater (SSW) or tap water (TW), we investigated the changes of immune cell distribution of the peripheral blood, or subjective judgment scores, after hot water bathing. Methods: Ten healthy young men were immersed for 10 min in DSW, SSW and TW heated to 42°C. Blood samples were collected before bathing, immediately after bathing and 60 min after bathing. Total and differential numbers of leucocytes and lymphocyte subsets (CD3, CD4, CD8, CD19, CD16, and CD56) were examined using an automated hematology analyzer and a flow cytometer, respectively. The subjective judgment scores were obtained by an oral comprehension test. Results: Since the pre-bathing leukocyte count in the TW group was significantly different from those in the DSW and SSW groups, we excluded the findings of TW bathing from consideration. In hot DSW bathing, CD8-lymphocytes increased significantly immediately after bathing (p<0.05), in contrast to hot SSW bathing, in which no significant changes were detected in the lymphocyte subsets. Additionally, there were no significant changes between repeated measurements in the subjective judgment scores, though the score of thermal sensation in SSW bathing showed a significantly higher value immediately after bathing than before bathing (p<0.01). Conclusions: Our findings suggest that increased CD8-lymphocytes in hot DSW bathing may improve human immune function as well as hot springs do, as compared with SSW bathing. Although hot DSW bathing may have the ability to change human immune cell distribution, well-designed studies are needed to clarify the health effects including not only DSW and SSW but also TW.
Bathing self care
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3.Real-world data for golimumab treatment in patients with ulcerative colitis in Japan: interim analysis in post-marketing surveillance
Shiro NAKAMURA ; Teita ASANO ; Hiroaki TSUCHIYA ; Kanami SUGIMOTO ; Yuya IMAI ; Seiji YOKOYAMA ; Yasuo SUZUKI
Intestinal Research 2022;20(3):329-341
Background/Aims:
Golimumab (GLM) is an anti-tumor necrosis factor-α drug approved for treating moderate-to-severe active ulcerative colitis (UC). A 52-week post-marketing surveillance (PMS) was initiated to evaluate its safety and effectiveness in patients with UC in Japan. We present an interim report of the ongoing PMS.
Methods:
Patients received 200 mg of subcutaneous GLM at week 0, 100 mg at week 2, and 100 mg 4 weekly thereafter. The safety analysis set included 392 patients with UC, and the effectiveness analysis set 387 patients. Safety and effectiveness were assessed at week 6.
Results:
Adverse drug reactions (ADRs) were reported in 8.2% (32/392) and serious ADRs in 4.6% (18/392). The most frequent ADRs were infection and infestation (3.3%), with herpes zoster being the most common. ADRs were significantly higher in patients with concomitant corticosteroid use (odds ratio [OR], 3.45; 95% confidence interval [CI], 1.40–9.68). No significant difference in ADR incidence was observed between patients aged ≥65 and <65 years (OR, 1.23; 95% CI, 0.35–3.47). Six-week effectiveness of GLM was confirmed by a decrease in the partial Mayo score (–2.3; 95% CI, –2.6 to –2.1) and C-reactive protein levels (–0.64; 95% CI, –0.92 to –0.36), including in the biologics-experienced population.
Conclusions
The safety and effectiveness of GLM at week 6 in a real-world setting were demonstrated in patients with UC in Japan. ADR patterns were consistent with previous reports with no new safety signals. Concomitant corticosteroid use may be associated with increased ADR incidence. The final results of the ongoing PMS are necessary for further evaluation.
4.Subacute effects of deep-sea water from the Japan Sea on blood examination values in mice.
Yasuo TSUCHIYA ; Kazutoshi NAKAMURA ; Hiroho SEKIKAWA ; Hiroki KAWAMURA ; Kunio MIYANISHI ; Teiji ISHIZU ; Masaharu YAMAMOTO
Environmental Health and Preventive Medicine 2002;7(5):189-192
OBJECTIVESTo clarify the characteristics of deep-sea water (DSW), we investigated the hematological, immunological and biochemical effects of DSW, specifically the so-called Japan Sea Proper Water (JSPW), samples of which we collected from the Japan Sea at a depth of about 300 meters.
METHODSFive groups of five mice each were orally administered,ad libitum for 12 weeks, one of the following: 1.2% DSW, 12% DSW, 1.2% surface-sea water (SSW), 12% SSW, or purified water (control)
RESULTSAmong these groups, no significant differences were observed in the average reduction of water intake, food consumption or body weight. The mean corpuscular volume, however, was significantly lower (p<0.05) in the 1.2% DSW group than in the control group. Moreover, serum immunoglobulin G and A values were significantly higher (p<0.05) in the 12% DSW and the 12% SSW groups, respectively, compared with the control group. In addition, the serum glucose value in the 12% DSW group was significantly higher (p<0.05) than in the control group
CONCLUSIONSThe findings of the present study suggested the presence of some toxic components in DSW. Before a final answer is reached about whether DSW, and specifically JSPW, is bad for human health, the pathophysiology of findings such as the decreased mean corpuscular volume, the higher immunoglobulin G value and the higher glucose value should be investigated.
5.Endocrine disrupting chemicals in Hungarian canned foods.
Masaharu YAMAMOTO ; István LÁNG ; Hiroshi SAKAI ; Hiroto NAKADAIRA ; Kazutoshi NAKAMURA ; Yasuo TSUCHIYA ; Shoichiro TSUGANE
Environmental Health and Preventive Medicine 2002;6(4):273-275
The aim of this study was to clarify the worldwide residual levels of organochloride compounds, such as BHC and DDT, which were reportedly concentrated in animal tissues by biological food chains. As a part of the investigation of endocrine disrupting chemicals (EDCs), we had a chance to measure the level of these compounds in Hungarian canned foods.Seven kinds of canned foods were purchased at a market in Budapest, Hungary, and the concentrations of eighteen organochloride compounds (α-BHC; β-BHC; γ-BHC; δ-BHC; p,p'-DDT; p,p'-DDE; p,p'-DDD; o,p'-DDT; heptachlor; heptachlor-epoxide; aldrin; dieldrin; endrin; oxychlordane; trans-chlordane; cischlordane; trans-nonachlor; and cis-nonachlor) were measured.Other than DDT and its metabolites, none of the EDCs were detected (levels <0.4 ppb). DDT and its metabolites, however, were detected in fish, meat and chicken liver pate. One of the DDT metabolites was detected quite frequently: p,p'-DDE was detected at a level of 1.8 ppb in fish soup concentrate, 2.3 ppb in Hungarian luncheon meat, 0.5 ppb in special luncheon meat, and 0.6 ppb in chicken liver pate.Of eighteen organochloride compounds examined, only DDT and its metabolites were detected in fish, animal meat, and animal liver. It is suggested that the DDT contamination in fish and meat is worldwide even after the ban of its use.
6.Prevalence of attention-deficit/hyperactivity disorder (ADHD) symptoms in preschool children: discrepancy between parent and teacher evaluations.
Yukio SOMA ; Kazutoshi NAKAMURA ; Mari OYAMA ; Yasuo TSUCHIYA ; Masaharu YAMAMOTO
Environmental Health and Preventive Medicine 2009;14(2):150-154
OBJECTIVEClarifying the characteristics of attention-deficit/hyperactivity disorder (ADHD) symptoms in childhood is important for the prevention and management of this disorder. The purpose of this study was to determine the prevalence of ADHD symptoms in Japanese preschool children based on evaluations performed by parents or teachers.
METHODSA questionnaire survey was performed to evaluate the estimated prevalence of ADHD symptoms in preschool children in Niigata City, Japan. The first survey, conducted in 2003, involved an evaluation of ADHD symptoms by their school teachers. The second survey, conducted in 2006, involved an evaluation of the symptoms by parents. The teacher survey included 9,956 children, and the parent survey included 7,566 children. Parents and teachers assessed ADHD symptoms in children using a 14-item questionnaire based on DSM-III-R. Children with a score of 8 or higher were classified as having ADHD symptoms.
RESULTSThe overall prevalence of ADHD symptoms was 2,349/7,566 (31.1%) in the parent survey and 431/9,956 (4.3%) in the teacher survey, with a prevalence ratio of 7.2 (95% CI: 6.5-7.9). Likelihood ratio test indicated that variables significantly associated with the presence of ADHD symptoms were gender, age, school type, interaction between gender and observer, and interaction between school type and observer (each with P < 0.0001).
CONCLUSIONSThe large difference between the estimated prevalence of ADHD symptoms in Japanese preschool children from teacher and parent surveys suggests that compared to teachers, parents consider their children's symptoms much more serious. Thus, parental evaluation of ADHD symptoms using DSM criteria may be inappropriate for ADHD screening.
7.Effects of Japan Sea Proper Water on the growth ofLegionella pneumophila, Escherichia coli, andStaphylococcus aureus.
Yasuo TSUCHIYA ; Michihiro TERAO ; Takanori FUJIMOTO ; Kazutoshi NAKAMURA ; Masaharu YAMAMOTO
Environmental Health and Preventive Medicine 2005;10(5):233-238
OBJECTIVETo assess whetherLegionella pneumophila serogroup 1 and serogroup 6,Escherichia coli, andStaphylococcus aureus can survive in Japan Sea Proper Water (JSPW).
METHODSThe inhibitory effects of JSPW, surface seawater (SSW), phosphate buffer solution with 3.5% NaCl of pH 7.0 (3.5% NaCIPBS), and the 10(2)- and 10(4)-fold dilute solutions with purified water or phosphate buffer solution of pH 7.0, and purified water were investigated. Survival cells were counted immediately after the water and the bacteria were mixed, and at 1,3,5, and 7 days after incubation at 37°C. If the number of surviving cells was decreased more than 2 log units compared with the starting value, we judged the medium to have had an inhibitory effect on the growth of the bacteria.
RESULTSThe survival cells of the bacteria in JSPW had decreased more than 2 log units compared with the starting value at 1 day after incubation. After 1 day of incubation, the cells ofLegionella pneumophila serogroup 6 andStaphylococcus aureus were found to have decreased more than 2 log units in purified water (PW) used as a control. Furthermore,Legionella pneumophila serogroup 1 in the 10(2)-fold dilute solution of JSPW was only 1.04 log units lower than the starting value at 7 days after incubation. In the 10(2)- and 10(4)-fold dilute solutions of JSPW,Escherichia coli survived for 7 days after incubation. These results were almost similar to the results in SSW and 3.5% NaCIPBS.
CONCLUSIONSThe present findings demonstrate thatLegionella pneumophila serogroup 1 andEscherichia coli cannot survive in undiluted JSPW for over a day at 37°C, suggesting the inhibitory effects may be due to the sodium chloride contained in JSPW.
8.Effects of hot deep seawater bathing on the immune cell distribution in peripheral blood from healthy young men.
Yasuo TSUCHIYA ; Tomihiro SHIMIZU ; Teruyuki TAZAWA ; Kazutoshi NAKAMURA ; Masaharu YAMAMOTO
Environmental Health and Preventive Medicine 2003;8(5):161-165
OBJECTIVESDeep seawater (DSW) utilization technology has been developed for the fields of medicine and health, among others. To clarify the health effects of DSW as compared with surface seawater (SSW) or tap water (TW), we investigated the changes of immune cell distribution of the peripheral blood, or subjective judgment scores, after hot water bathing.
METHODSTen healthy young men were immersed for 10 min in DSW, SSW and TW heated to 42°C. Blood samples were collected before bathing, immediately after bathing and 60 min after bathing. Total and differential numbers of leucocytes and lymphocyte subsets (CD3, CD4, CD8, CD19, CD16, and CD56) were examined using an automated hematology analyzer and a flow cytometer, respectively. The subjective judgment scores were obtained by an oral comprehension test.
RESULTSSince the pre-bathing leukocyte count in the TW group was significantly different from those in the DSW and SSW groups, we excluded the findings of TW bathing from consideration. In hot DSW bathing, CD8-lymphocytes increased significantly immediately after bathing (p<0.05), in contrast to hot SSW bathing, in which no significant changes were detected in the lymphocyte subsets. Additionally, there were no significant changes between repeated measurements in the subjective judgment scores, though the score of thermal sensation in SSW bathing showed a significantly higher value immediately after bathing than before bathing (p<0.01).
CONCLUSIONSOur findings suggest that increased CD8-lymphocytes in hot DSW bathing may improve human immune function as well as hot springs do, as compared with SSW bathing. Although hot DSW bathing may have the ability to change human immune cell distribution, well-designed studies are needed to clarify the health effects including not only DSW and SSW but also TW.