1.Clinical significance of C-reactive protein in patients with severe fever with thrombocytopenia syndrome
Youichi YANAGAWA ; Chihiro MAEKAWA ; Noriko TANAKA ; Namiko SUDA ; Kenji KAWAI ; Michika HAMADA ; Soichiro OTA
Journal of Rural Medicine 2025;20(2):66-70
Objective: To examine the clinical significance of elevated C-reactive protein (CRP) levels in cases of severe fever with thrombocytopenia syndrome (SFTS), with a particular focus on their role in predicting outcomes beyond that of previous reports.Patients and Methods: CRP values and SFTS case data retrieved from a PubMed search were extracted for analysis. For comparison, the subjects were divided into two groups based on their CRP levels: normal (CRP ≤0.3 mg/mL) and elevated (CRP >0.3 mg/dL).Results: Forty-four cases were identified: 25 with normal CRP levels and 19 with elevated CRP levels. In an univariate analysis, no significant differences were observed between the two groups with respect to age, sex, date of blood examination, white blood cell count, outcome, or lactate dehydrogenase, alanine transaminase, creatine, or ferritin levels. However, the normal group contained a higher proportion of women, and the incidence of other infectious diseases was relatively low.Conclusion: In cases of SFTS, a CRP level >0.3 mg/dL in the first collection indicates the potential for a mixed infection other than an SFTS-associated infection and male prevalence. Further prospective studies are necessary to confirm whether the findings of the present study are generalizable among patients with SFTS.
2.Effects of Chloridquellen and Bicarbonate Spring Waters Ingestion on Electrogastrography and Heart Variability in Humans
Chihiro MIWA ; Noriyuki TANAKA ; Yasunori MORI ; Hiroya SIMASAKI ; Akira DEGUCHI ; Eri SUZUMURA ; Masayasu MIZUTANI ; Kazunori MAEDA ; Yoichi KAWAMURA ; Satoshi IWASE ; Yasushi IWASAKI
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2014;77(2):151-158
The purpose of this study was to clarify the effects of ingesting chloridquellen and bicarbonate spring waters on electrogastrography and heart rate variability in humans. The subjects were ten young adults (average age 21.9 years old). Three and six cycles per minute (cpm) frequency of electrogastrography (EGG) were measured, as well as the high-frequency (HF: 0.15-0.40Hz) components, and the ratio of low-frequency (LF: 0.04-0.15Hz) components to HF components in heart rate variability (HRV) during 90 minutes. The taste of the water and pain or abnormalities in the stomach were also assessed by having the subjects answer a questionnaire. The subjects ingested the spa water or purified water and were asked to respond to the questionnaire after thirty minutes, and they also ingested no water on a different day and were questioned. The EGG-6 cpm frequency, presumably reflecting intestinal activity, did not change under any conditions. The EGG-3 cpm frequency, presumably reflecting stomach activity, significantly increased with bicarbonate spring waters immediately after ingestion and decreased after 30 min. Additionally, the 3 cpm frequency significantly increased with ingestion of purified water over the course of 30 min. The HF components in HRV, presumably reflecting cardiac parasympathetic activity, did not change under any conditions. The ratio of LF to HF components in HRV, presumably reflecting cardiac sympathetic activity, significantly increased with ingestion of purified water immediately and after 15 min, and bicarbonate spring waters after 30 min. There was a difference between ingestion of chloridquellen and purified water in the answers concerning the taste of the water in the questionnaire. These findings suggest that the constituent parts of chloridquellen water and other factors activate stomach and autonomic nervous activities in humans.
3.Longitudinal Evaluation of the Relevance of Change in the Number of Baths, Cognitive Impairment and Depressive State in Patients with Alzheimer’s Disease after Disease Onset
Yasushi IWASAKI ; Keiko MORI ; Akira DEGUCHI ; Eri SUZUMURA ; Kazunori MAEDA ; Hiroya SIMASAKI ; Noriyuki TANAKA ; Yasunori MORI ; Chihiro MIWA ; Hitoshi HAMAGUCHI ; Yoichi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2013;76(3):192-199
We previously reported that in patients with Alzheimer’s disease (AD), the number of baths that patients report taking at their first evaluation at a memory clinic was significantly decreased in comparison to before the onset of dementia. Based on this research, we thought further longitudinal evaluation was needed regarding the relationship between the number of baths, cognitive impairment and depression state after AD progression. In the present study, we reevaluate the number of baths; cognitive function tests (Hasegawa’s Dementia Scale-Revised [HDS-R], Mini Mental State Examination [MMSE] and Wechsler Adult Intelligence Scale-Revised [WAIS-R]); and the depression assessment (Zung Self-rating Depression Scale [SDS]) 1 year after first evaluation. At the first evaluation, the average number of baths taken by 65 AD patients (16 male, 49 female; range: 64-90 years, average: 79.5±5.6 years), was 5.6±1.6 bathsweek. At the reevaluation, this number had decreased to 4.9±1.9 bathsweek. In the WAIS-R, a significant positive correlation was found between the score change in number of baths and the change in performance intelligence quotient (PIQ) and total intelligence quotient (TIQ). However, no significant correlation was found between the score change in number of baths and the change in HDS-R, MMSE, or verbal intelligence quotient in WAIS-R or SDS. We further evaluated the present series by dividing the study population into two subtypes: a group of patients in which the number of baths decreased 1 year after the first evaluation, and a group in which there was no change. There were no significant differences in background factors (e.g. average age at first evaluation) between the groups. Although, no significant difference was observed between the groups in number of baths before dementia onset (both were 6.7 timesweek), a significant difference was found at the first evaluation (5.3 bathsweek vs 5.9 bathsweek, respectively). No significant differences were observed between the groups in cognitive function test or depression assessment at the first evaluation. However, on reevaluation the group with the decreased number of baths showed significantly lower PIQ and TIQ scores in WAIS-R and a significantly higher SDS score. The results of the present study suggested that number of baths decreased along with the progression of AD and the greatest participating factor was the practical dysfunction reflected by the PIQ score in WAIS-R. Furthermore, we considered the existence of two subtypes: patients in whom the number of baths decreases with AD progression and those in whom there is no change.
4.Estimation of Exposure Dose Due to Radon in Radioactive Spring Water
Yasunori MORI ; Akira DEGUCHI ; Chihiro MIWA ; Yasushi IWASAKI ; Eri SUZUMURA ; Kazunori MAEDA ; Hitoshi HAMAGUCHI ; Hiroya SHIMASAKI ; Masayasu MIZUTANI ; Noriyuki TANAKA ; Yoichi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2013;76(4):255-262
In Japan, the Hot Springs Law and the Guideline of Analytical Methods of Mineral Springs (revised) classify springs containing 74 Bq/kg of radon as “hot springs” and those with radon levels exceeding 111 Bq/kg as “medical springs” called “radioactive spring”. Radon is a noble gas that easily diffuses in air. This study evaluates exposure dose due to radon when using a radioactive spring at a spa in the Toriido area, Komono town, Mie district, Mie prefecture. After bath water was supplied through a pipe from hot spring storage tanks to bathtubs, only 5.3-18.0% of radon remained in the water. Two days later, only 0.3-0.4% of the radon remained in the bath water due to radioactive decay and diffusion into air being increased by bathing and recirculation filtering. The calculated effective dose from bathing in radioactive hot spring was 2.8-12.0 nSv, and that from drinking radioactive hot spring water was 5.1-23.3 nSv. To determine the total effective dose from use of the hot spring facility that may effects on human health, it is necessary to analyze radon concentrations not only in the water but also the surrounding air.
5.The Relation between Bathing Habits, Cognitive Impairment, and Depressive State in Patients with Alzheimer Disease
Yasushi IWASAKI ; Akira DEGUCHI ; Eri SUZUMURA ; Kazunori MAEDA ; Hiroya SHIMASAKI ; Noriyuki TANAKA ; Yasunori MORI ; Chihiro MIWA ; Hitoshi HAMAGUCHI ; Yoichi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2012;75(3):186-194
Because bathing frequency decrease as Alzheimer disease (AD) worsens, we investigated the relation between cognitive disfunction and bathing frequency. We asked AD patients and their caregivers about the number of times the patient bathed per week before onset of dementia and the time of first clinical consultation. We investigated the relation between scores from a cognitive function test (Hasegawa’s Dementia Scale-Revised [HDS-R], the Mini Mental State Examination [MMSE] and Wechsler Adult Intelligence Scale-Revised [WAIS-R]), and a depression assessment (Zung Self-rating Depression Scale [SDS]) and number of baths taken per week. Before onset of dementia, the average number of baths taken by 89 AD patients (26 men, 63 women; range: 63-90 years, average: 79.8 years), was 6.6 times/week. At evaluation time, this number had decreased significantly to 5.3 times/week (p<0.001). A significant positive correlation was found between perfomance Intelligence Quotient (IQ) and total IQ of the WAIS-R and number of baths (p<0.001, p<0.01, respectively). No significant correlation coefficient was found between HDS-R, MMSE, verbal IQ of the WAIS-R and the SDS and number of baths. Reasons of the patients gave for less frequent bathing were that bathing was troublesome or was forgotten and that thermoregulation of bath water had become impossible. The results suggested that in AD patients, number of baths taken decreased with aggravation of cognitive dysfunction and that there were multiple participating factors including memory disturbance, depressive state, and, particularly, executive dysfunction.
6.Hygienic Chemical Examination of Bath Water Quality Change in Hot Spring Utilizing Hospital—Presumption of bath water quality changing factors by aeration and aging of hot spring—
Yasunori MORI ; Akira DEGUCHI ; Chihiro MIWA ; Yasushi IWASAKI ; Eri SUZUMURA ; Kazunori MAEDA ; Hitoshi HAMAGUCHI ; Hiroya SHIMASAKI ; Noriyuki TANAKA ; Yoichi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2012;75(3):195-203
The purposes of this study were to analyze the chemical composition of some bath water in a simple alkaline hot spring utilizing a hospital and clarifying the factors that influence the concentration of each component of the hot spring water accompanying the bathing. Water samples were collected in plastic bottles from some bath water and transported to the laboratory. The pH value, electrical conductivity, cations (sodium, potassium, magnesium and calcium ions), anions (fluorine, chlorine, nitrite, nitrate and sulfate ions) and metasilicic and metaboric acids were measured. To investigate the factors that increase concentrations of each component in bathing water, aeration examinations with air or nitrogen gas were continued for one month. The concentrations of sulfate and nitrate ions in the bath water showed an increased tendency compared to those of the hot spring water just after welling up. After aeration with air, the concentration of sulfate ions became higher than that with nitrogen gas. On the contrary, an increase in the concentration of nitrate ions was not found in water aerated with air or nitrogen gas. In conclusion, the oxidation of sulfur in the hot spring water may have caused the density change of the sulfate ions in the bath water. As for the nitrate ions, the increase in the concentration in the bath water seems to have been caused by perspiration during bathing, but not by oxidation for nitrogen in the hot spring water.
7.Effects of the Water Fall Bath on Muscle Blood Flow, Muscle Hardness, Skin Blood Flow and Tympanic Temperature after Muscle Contraction in Humans
Chihiro MIWA ; Noboru YOKOYAMA ; Yuko KAWAHARA ; Akira DEGUCHI ; Noriyuki TANAKA ; Hiroya SHIMAZAKI ; Eri SUZUMURA ; Yoichi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2011;74(3):178-185
The purpose of this study was to clarify effects of the water fall bath on muscle blood flow, muscle hardness at the shoulder and body temperature after muscle contraction in human. The subjects of this study were eight young males (average 20.4years old). Blood flow and hardness in middle fiber of trapezius were measured using the monitor of spectroscopy and a handy battery-run device, skin blood flow rate using the laser doppler flowmetry, and tympanic temperature using the thermistor during control period 10 minutes, for five minutes during four conditions (40°C water fall bath, massage using the knocking machine, 40°C hot pack and rest) after muscle contraction and moreover 30 minutes. Subjects wore a swimming trunk while these experiments. The ambient temperature and relative humidity were set to 27°C, 42% in control room. During the water fall bath, the muscle blood flow was tend to increased compared with after muscle contraction. The skin blood flow was increased and the muscle hardness was decreased significantly. During the massage, the skin blood flow was increased and the muscle hardness was decreased significantly. During the hot pack, the muscle hardness was decreased significantly. The tympanic temperature was no changed in three conditions except from the rest. These findings suggest that water fall bath is lessened the muscle hardness causing increase of the muscle and the skin blood flows. Therefore, the water fall bath can use one of the method to relief muscle fatigue.
8.Effects of Hot Footbath on Motor Function in Healthy Volunteer
Noriyuki TANAKA ; Kimiya SUGIMURA ; Hiroya SHIMAZAKI ; Akira DEGUCHI ; Eri SUZUMURA ; Yoichi KAWAMURA ; Chihiro MIWA ; Nariaki SHIRAISHI
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2009;72(2):141-147
Purpose
This study aimed to clarify the effects of footbath (FB) on motor functions (MFs).
Subjects
The study population comprised 26 healthy volunteers (12 males and 14 females; age, 21-30years, Standard Deviation,25.5±2.8).
Method
(1) Study design: The footbath group (FBG; 6 males, 8 females) received FB at 42°C for 20 min after 5-min rest. The control group (CG; 6 males, 6 females) was instructed to sit on the chair for 20 min after 5-min rest. (2) Evaluation of MFs: MF was evaluated using the following parameters: long sitting reach (LSR), grips (GP), quadriceps power, stick reaction, and functional reach (FR). MF was evaluated before the rest period (pre-MF) and after load application (post-MF). The results obtained from pre-MF and post-MF assessments were compared. (3) Measurement of tympanic membrane temperature (TM temp) : TM temp was measured every 1 min duimg load application and after the rest period.
Result
TM temp: Significant increase in the TM temp in the FBG was observed at 18 min in the males and at 20 min in females.
MF before and after FB: (1) Analysis of all 26 cases: There was no significant difference betweenthe pre-MF and post-MF parameters in both the FBG and CG. (2) Analysis of the findings in males only: The post-FR value in the FBG increased significantly as compared to the pre-FR value, although there was no significant difference between the pre-MF and post-MF results in the CG. (3)Analysis of the findings in females only: In the FBG, post-LSR value increased and the post-GP value decreased significantly as compared to the corresponding values, although there was no significant difference between the pre-MF and post-MF in the CG.
Conclusion
Our results suggest that FB improves MF in healthy volunteers. Gender ditiference should be considered while establishing effective FB treatment programs in Balneology.
9.Effects of Foot Bath on Cerebral Circulation and Mental Function in Elderly Persons
Chihiro MIWA ; Hiroya SHIMAZAKI ; Noriyuki TANAKA ; Akira DEGUCHI ; Eri SUZUMURA ; Kimiya SUGIMURA ; Yoiclhi KAWAMURA
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2009;72(4):250-255
The purpose of this study was to clarify effects of foot bath at 42°C for 10 min on cerebral circulation and mental function in elderly persons. The subjects of this study were 12 elderly persons (average 83.1 years old). Tissue hemoglobin concentration and blood flow at the cerebral frontal cortex were measured using near-infrared spectroscopy and blood pressure and heart rate using an autonomic spygmomanometer during for each 10 minutes before foot bath, during foot bath, and after foot bath. We measured subject's arithmetic speed and mistaken numbers as mental function. During foot bath the blood flow and after foot bath oxyhemoglobin at frontal cortex were significantly increased. Heart rate was significant increased after foot bath. But deoxyhemoglobin and blood pressure did not changed during foot bath. In addition to arithmetic speed and mistaken numbers were same before and after foot bath. These findings suggest that cerebral circulation is changed by foot bath, but mental functions is not before and after foot bath.
10.Effects of the Spa Water Ingestion on Electrogastrography and Heart Rate Variability in Humans
Chihiro MIWA ; Kimiya SUGIMURA ; Nariaki SHIRAISHI ; Noriyuki TANAKA ; Yoichi KAWAMURA ; Akira DEGUCHI ; Eri SUZUMURA ; Satoshi IWASE
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2008;71(3):161-166
The purpose of this study was to clarify the effects of ingesting spa water on electrogastrography and heart rate variability in humans. The subjects were eight youths (average age 22.3 years old). We measured three and six circles per minute (cpm) power of electrogastrography (EGG), the high-frequency (HF: 0.15-0.4Hz) components, and the ratio of low-frequency (LF: 0.04-0.15Hz) components to HF components in heart rate variability (HRV) during 90 minutes. We also assessed the taste of water, pain or abnormalities in the stomach by questionnaire. The subjects ingested the spa water or purified water after thirty minutes, and ingested no water on a different day. The six cpm power of EGG, presumably reflecting instestinal activity, was significantly increased with spa water ingestion. The three cpm power of EGG, presumably reflecting stomach activity, did not change under any conditions. The HF components in HRV, presumably reflecting cardiac parasympathetic activity, tended to increase with ingestion of spa water. The ratio of LF to HF components in HRV, presumably reflecting cardiac sympathetic activity, significantly decreased with ingestion of spa and purified water. There was no difference in the answers of the questionnaire. These findings suggest that spa water ingestion activates instestinal activity, increasing parasympathetic nerve activity and suppressing sympathetic nerve activity in humans.


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