7.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.
9.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
;
Asian Continental Ancestry Group
;
Brain Injuries
;
Brain
;
Depression
;
Diagnostic Self Evaluation
;
Glasgow Coma Scale
;
Health Surveys
;
Humans
;
Japan
;
Psychometrics
;
Quality of Life
;
Rehabilitation Centers
;
Reproducibility of Results
;
Selection Bias
;
Weights and Measures
10.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.