2.The effects of yogurt consumption on immune function in university male track and field athletes -A randomized, double-blind, placebo-controlled, parallel-group study-
Takayuki TOSHIMITSU ; Seiya MAKINO ; Kenichi HOJO ; Yoshio SUZUKI ; Akira NAKAMURA ; Yuta TAKANASHI ; Natuse KOIKAWA ; Shunsuke NAGATO ; Keisyoku SAKURABA ; Kazuyoshi TAKEDA ; Ko OKUMURA ; Keisuke SAWAKI
Japanese Journal of Physical Fitness and Sports Medicine 2023;72(2):161-172
This study aimed to evaluate the effects of ingesting yogurt fermented with Lactobacillus delbrueckii subsp. bulgaricus (OLL1073R-1) on the immune function of healthy university men track and field athletes. Study design Randomized, double-blind, placebo-controlled, parallel-group study. A total of 37 track and field athletes aged ≥18 years were randomly assigned into two groups. For 2 weeks, two bottles of yogurt fermented with OLL1073R-1 and Streptococcus thermophilus OLS3059 or placebo sour milk were ingested daily to the participants. During the intake period, a 1-week training camp was held and participants were subjected to strenuous exercise. Natural killer (NK) cell activity, which is the primary endpoint, was significantly lower in the placebo group after ingestion than that at baseline; however, it remained unchanged during the pre-exercise level of the yogurt group. The two-way repeated measures analysis of variance showed an interaction effect in the NK cell activity change (P=0.018) and a significant difference between the groups after the 2-week ingestion (P=0.015). Among the secondary endpoints, cytokines and chemokines levels involved in activating innate immunity maintained or enhanced only in the yogurt group. ALT, LDH, and CK significantly elevated only in the placebo group. Furthermore, amino acid levels were significantly lower in the placebo group after ingestion than that at baseline; however, it remained unchanged during the pre-exercise level in the yogurt group. Consuming yogurt fermented with OLL1073R-1 prevents the decline in immune function associated with strenuous exercise. Additionally, the yogurt may contribute to stable physical condition.
3.Sheep as a large animal model for hearing research: comparison to common laboratory animals and humans
Po‑Yi LUE ; Mark H. OLIVER ; Michel NEEFF ; Peter R. THORNE ; Haruna SUZUKI‑KERR
Laboratory Animal Research 2023;39(4):250-268
Sensorineural hearing loss (SNHL), caused by pathology in the cochlea, is the most common type of hearing loss in humans. It is generally irreversible with very few effective pharmacological treatments available to prevent the degenerative changes or minimise the impact. Part of this has been attributed to difficulty of translating “proof-ofconcept” for novel treatments established in small animal models to human therapies. There is an increasing interest in the use of sheep as a large animal model. In this article, we review the small and large animal models used in preclinical hearing research such as mice, rats, chinchilla, guinea pig, rabbit, cat, monkey, dog, pig, and sheep to humans, and compare the physiology, inner ear anatomy, and some of their use as model systems for SNHL, including coch‑ lear implantation surgeries. Sheep have similar cochlear anatomy, auditory threshold, neonatal auditory system development, adult and infant body size, and number of birth as humans. Based on these comparisons, we suggest that sheep are well-suited as a potential translational animal model that bridges the gap between rodent model research to the clinical use in humans. This is especially in areas looking at changes across the life-course or in spe‑ cific areas of experimental investigation such as cochlear implantation and other surgical procedures, biomedical device development and age-related sensorineural hearing loss research. Combined use of small animals for research that require higher throughput and genetic modification and large animals for medical translation could greatly accelerate the overall translation of basic research in the field of auditory neuroscience from bench to clinic.
4.Huaier Granule for Breast Cancer Treatment
Buhao ZOU ; Yoshitaka FUKUZAWA ; Nobutaka SUZUKI
Japanese Journal of Complementary and Alternative Medicine 2021;18(1):1-6
Huaier granule, which is clinically used in Japan as a health food, is originally a traditional Chinese medicine for immune dysfunction, such as cancer, in China. Huaier guanule emerged with abundant evidence, and is being prescribed to hepatocellular carcinoma, breast cancer, lung cancer, gastric cancer, et al. as indications in China. This review focused on the clinical evidence of Huaier guanule associated to breast cancer.
5.Determination of Optimum Number of Groups on the Crowdsourcing Survey in Japanese People Interpreted by Physical Constitution Defined by CCMQ-J
Mariko SATO ; Toshihiro KAWASAKI ; Ming HUANG ; Hoko KYO ; Naoaki ONO ; Ryouhei EGUCHI ; Md. ALTAF-UL-AMIN ; Saki TOKUDA-KAKUTANI ; Hiroshi WATANABE ; Norihito MURAYAMA ; Satoshi NAKAMURA ; Shiori YAMAGUCHI ; Hiroki TANAKA ; Shigehiko KANAYA ; Yanbo ZHU ; Zhaoyu DAI ; Qi WANG ; Kazuo UEBABA ; Nobutaka SUZUKI
Japanese Journal of Complementary and Alternative Medicine 2019;16(2):105-112
Chinese Medicine Questionnaire (CCMQ-J) consists of sixty independent questionnaires and 9 physical constitutions called subscales. One type is balanced constitution (i.e., gentleness), and the following eight types represent unbalanced constitution: Qi-deficiency constitution, Yang-deficiency constitution, Yin-deficiency constitution, Phlegm-dampness constitution, Damp-heat constitution, Stagnant Blood constitution, Stagnant Qi constitution, and Inherited Special constitution. In this study, we proposed to determine optimal number of groups in 851 participants recruited from crowdsourcing answered CCMQ-J questionnaire consisting of 60 questions. In the present study, we applied k-means clustering with gap statistics to the questionnaire data and the number of optimal groups was estimated by five. The five groups are mainly characterized by 3 subscales in CCMQ-J, i.e. (i) two subscales corresponding to Yang-deficiency and Qi-depress, (ii) three subscales corresponding to gentleness, Yang-deficiency and Qi-depress (iii) Yang-deficiency, (iv) gentleness, and (v) Qi-depress. In the crowdsourcing survey, two subscales, Yang-deficient and Qi-depress are the most frequently occurred in current Japanese people.
6.Evaluation and Interpretation of 9 Body Constitution Scores of CCMQ-J by Seven Independent Questionnaires
Guang SHI ; Hoko KYO ; Toshihiro KAWASAKI ; Shigehiko KANAYA ; Mariko SATO ; Saki TOKUDA-KAKUTANI ; Hiroshi WATANABE ; Norihito MURAYAMA ; Minako OHASHI ; Md ALTAF-UL-AMIN ; Naoaki ONO ; Hiroki TANAKA ; Satoshi NAKAMURA ; Kazuo UEBABA ; Nobutaka SUZUKI ; Ming HUANG
Japanese Journal of Complementary and Alternative Medicine 2019;16(2):79-93
In this study, we proposed an approach to interpret the classification of body constitution based on the Japanese Version of Constitution in Chinese Medicine Questionnaire (CCMQ-J) in terms of an augmented questionnaire combining seven independent questionnaires. The augmented questionnaire consists of 254 questions in terms of seven categories of attributes, which are the (i) basic information (BI), (ii) disease (DI), (iii) social factors (SO), (iv) mental factors (ME), (v) dietary habits (DH), (vi) sleeping state (SL), and (vii) sub-health (SH). The partial least square (PLS) regression has been adopted to model the correlations between the scores of body constitutions and the questions, and their results show that the body constitution can be represented by the linear combination of the questions substantially (correlation coefficients between the true and predicted constitutions are all above 0.7). Moreover, by using the crowdsourcing technique in data collection, a total of 851 samples (350 males and 501 females between 20 and 85 years old) samples with diverse geographical backgrounds in Japan have been collected, from which new medical implications have been extracted through the discussion in a Traditional Chinese Medicine standpoint. This study serves as a crucial step for validating the philosophy of ancient Chinese medicine by the state-of-the-art information science techniques and facilitating the use of the CCMQ-J in public healthcare.
7.Validation of the Japanese Version of the Quality of Life after Brain Injury (QOLIBRI) Scale
Megumi SUZUKI ; Mariko NAITO ; Kikuo OTA ; Klaus R H VON WILD ; Eiichi SAITOH ; Izumi KONDO
Brain & Neurorehabilitation 2019;12(2):e18-
The goal of the present study was to test the reliability and validity of the Japanese version of the Quality of Life after Brain Injury (QOLIBRI) scale. Correlations between the QOLIBRI and Glasgow Coma Scale scores, anxiety, depression, general quality of life (QOL), and demographic characteristics were examined to assess scale validity. The structure of the QOLIBRI was investigated with exploratory and confirmatory factor analyses, as well as the Partial Credit Model. Test–retest reliability was assessed over a 2-week interval. Participants were 129 patients with traumatic brain injury (TBI) recruited from rehabilitation centers in Japan. The QOLIBRI showed good-to-excellent internal consistency (Cronbach's α: 0.82–0.96), test–retest reliability, and validity (r = 0.77–0.90). Factor analyses revealed a 6-factor structure. Compared to an international sample (IS), Japanese patients had lower QOLIBRI scores and lower satisfaction in several domains. There were positive correlations between the QOLIBRI scales and the Short Form 36 Health Survey (r = 0.22–0.41). The Japanese version of the QOLIBRI showed good-to-excellent psychometric properties. Differences between JS and IS may reflect sampling bias and cultural norms regarding self-evaluation. The QOLIBRI could be a useful tool for assessing health-related QOL in individuals with TBI.
Anxiety
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Asian Continental Ancestry Group
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Brain Injuries
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Brain
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Depression
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Diagnostic Self Evaluation
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Glasgow Coma Scale
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Health Surveys
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Humans
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Japan
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Psychometrics
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Quality of Life
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Rehabilitation Centers
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Reproducibility of Results
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Selection Bias
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Weights and Measures
8.Data Intensive Study of Accessibility of Edible Species and Healthcare Across the Globe
Satoshi WATANABE ; Hoko KYO ; KANG LIU ; Ryohei EGUCHI ; Md. ALTAF-UL-AMIN ; Aki MORITA(HIRAI) ; Minako OHASHI ; Naoaki ONO ; Alex Ming HUANG ; Yanbo ZHU ; Qi WANG ; Zhaoyu DAI ; Yukiko NAKAMURA ; Klaus W. LANGE ; Kazuo UEBABA ; Shintaro HASHIMOTO ; Shigehiko KANAYA ; Nobutaka SUZUKI
Japanese Journal of Complementary and Alternative Medicine 2018;15(1):37-60
Variety of accessibility to edible species in different regions has climatic and historical roots. In the present study, we try to systematically analyze 28,064 records of relationships between 11,752 edible species and 228 geographic zones by hierarchical clustering. The 228 geographic regions were classified into 11 super groups named as A to K, which were further divided into 39 clusters (CLs). Of them, at least one member of each of 28 CLs is associated to 20 or more edible species according to present information of KNApSAcK DB (http://kanaya.naist.jp/KNApSAcK_World/top.jsp). We examined those 28 CLs and found that majority of the members of each of the 27 CLs (96%) have specific type of climate. Diversity of accessibility to edible species makes it possible to separate 8 geographic regions on continental landmasses namely Mediterraneum, Baltic Sea, Western Europe, Yucatan Peninsula, South America, Africa and Arabian Peninsula, Southeast Asia, and Arctic Ocean; and three archipelagos namely, Caribbean Islands, Southeast Asian Islands and Pacific Islands. In addition, we also examined clusters based on cultural exchanges by colonization and migration and mass movement of people and material by modern transportation and trades as well as biogeographic factors. The era of big data science or data intensive science make it possible to systematically understand the content in huge data and how to acquire suitable data for specific purposes. Human healthcare should be considered on the basis of culture, climate, accessibility of edible foods and preferences, and based on molecular level information of genome and digestive systems.
9.Pathogenesis and Bone Resorption in Acquired Cholesteatoma: Current Knowledge and Future Prospectives.
Mahmood A HAMED ; Seiichi NAKATA ; Ramadan H SAYED ; Hiromi UEDA ; Badawy S BADAWY ; Yoichi NISHIMURA ; Takuro KOJIMA ; Noboru IWATA ; Ahmed R AHMED ; Khalid DAHY ; Naoki KONDO ; Kenji SUZUKI
Clinical and Experimental Otorhinolaryngology 2016;9(4):298-308
Cholesteatoma is a cystic non tumorous lesion of the temporal bone that has the ability to destroy nearby structures by its power to cause bone resorption and as a result, fatal complications prevail. We aimed to conduct a comprehensive review for pathogenesis of acquired cholesteatoma, bone resorption mechanisms, and offer a future vision of this serious disease. We have reviewed different theories for pathogenesis of acquired cholesteatoma including the most relevant and updated ones with special emphasis on the mechanisms of bone resorption through Medline/PubMed research using the keywords ‘aetiopathogenesis, bone resorption, acquired cholesteatoma, temporal bone, and cytokines.’ In order to strengthen our study, we searched the reference lists of identified reviews. Cholesteatoma is a subject of debate among otolaryngologists since it was prescribed firstly. Over many decades, several theories were postulated for aetiopathogenesis of cholesteatoma with a tendency to follow more than one theory to explain the proper nature of that disease. Until now, the mechanism of bone resorption has yet to be more clarified. In the last century, a leap has occurred in the field of biomolecular cholesteatoma research which improved our knowledge about its pathophysiology and bone destructive mechanism. However, surgery is still the only available treatment. We conclude that discovery of new therapeutic choices for cholesteatoma other than surgery by the use of anti-growth, anti-proliferative, apoptotic agents as well as medications that antagonize osteoclastogenesis should be the main concern in the future clinical and experimental research work. Also, searching for predictors of the aggressiveness of cholesteatoma can affect the timing of intervention and prevent occurrence of complications.
Bone Resorption*
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Cholesteatoma*
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Cytokines
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Temporal Bone


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