A5023917611- Reproductive biology and impacts on aquatic species
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Parathyroid Disorders and Treatments
- Gallbladder and Bile Duct Disorders
- Biliary and Gastrointestinal Fistulas
- Isotope Analysis in Ecology
- Muscle Physiology and Disorders
- Microbial Community Ecology and Physiology
- Vitamin D Research Studies
- Fish biology, ecology, and behavior
- Erythrocyte Function and Pathophysiology
- Minimally Invasive Surgical Techniques
- Radioactivity and Radon Measurements
- Environmental DNA in Biodiversity Studies
- Genetic Neurodegenerative Diseases
- Nutrition, Health and Food Behavior
- Radioactive contamination and transfer
- Agricultural and Food Sciences
- Aortic aneurysm repair treatments
- Oral and gingival health research
- Uterine Myomas and Treatments
- Pediatric Hepatobiliary Diseases and Treatments
Kindai University Hospital
2024
Japan Fisheries Research and Education Agency
2017-2023
Nagasaki University
2019
The University of Tokyo
1995-2016
Nagoya University
2015
Inner Mongolia University
2013
University of Miyazaki
2002
Kanazawa University
1997
Okayama University
1993
The resistance of parathyroid cells to 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) in uremic hyperparathyroidism is thought be caused, part, by a 1,25(OH)2D3 receptor (VDR) deficiency the parathyroids. However, results biochemical studies addressing VDR numbers parathyroids are controversial. Several have found content decreased patients and animals, while others no such decrease animals. To clarify role VDR, we investigated distribution surgically-excised obtained from chronic dialysis...
Abstract Anguillid eels are found globally in fresh, transitional and saline waters have played an important role human life for centuries. The population status of several species is now significant concern. threats to populations include direct exploitation at different stages, blockages migratory routes by dams other structures, changes river basin management that impact habitat carrying capacity suitability, pollution, climate change, diseases parasites. While much has been done...
The influences of water temperature and feeding regime on otolith growth in Anguilla japonica glass eels elvers were investigated using individuals reared at 5, 10, 15, 20, 25 30° C fed or unfed conditions salinity 32 after their otoliths marked with alizarin complexone (ALC). To eliminate the difficulty observing edges optical (OM) scanning electron (SEM) microscopes, three to 10 sampled from each tank 20 30 days during experiment for an additional 25° a second time. Otolith number...
This study clarifies the location, size and age at onset of metamorphosis in Japanese eels Anguilla japonica through oceanic surveys, rearing experiments analyses morphology otoliths leptocephali glass eels. Twenty‐eight metamorphosing were collected mesoscale eddy region to east Taiwan during research expeditions 2004. Rearing showed that total length ( L T ) decreased by an average 12·5% 13·9% 2–12 h after death. Thus, mean back‐calculated for 630 from Japan was estimated 67·8 ± 2·7 mm...
Many diadromous fishes such as salmon and eels that move between freshwater the ocean have evolved semelparous reproductive strategies, but both groups display considerable plasticity in characteristics. Factors population density growth, predation risk or reproduction cost been found to influence timing of maturation. We investigated relationship female size at maturity individual growth trajectories long-lived European eel, Anguilla anguilla . A Bayesian model was applied 338 maturing...
Anguillid eels generally exhibit catadromous migration between oceanic spawning grounds and freshwater growth habitats, but some individuals remain in coastal or estuarine saline waters for growth. This migratory plasticity had been considered to be a conditional strategy based on individual energetic status during the glass eel stage. Several studies have examined whether salinity-based habitat selection is linked body conditions, while frozen specimens of European showed this relationship,...
The separation and characterization of pregnenolone 3-stearate in rat brains are carried out using high-performance liquid chromatography (HPLC). is obtained from a whole brain by extraction with ethyl acetate followed silica gel column chromatography. fraction derivatized 1-dimethylaminonaphthalene-5-sulfonylhydrazine (dansylhydrazine) or 4-(N,N-dimethylaminosulfonyl)-7-hydrazino-2,1,3-benzoxadiazole, the derivative separated successive preparative HPLC fluorescence detection....
This paper describes our trial experience of the use high radiation area for education. We used environmental samples collected from in Fukushima prefecture and India, practice measurement health risk assessment Nagasaki University Medical School. also carried out field monitoring seminar students existing exposure areas Tottori Yamakiya observatory Fukushima. Although evaluation educational effectiveness is still underway, both types education appeared attractive mostly due to natural...