1.The Bioavailability of Reduced Coenzyme Q10 Water-Dispersive Powder after Single Oral Administration
Yoshihiro UCHIDA ; Kouichi WAKIMOTO ; Hidehiro TAKAHASHI ; Kenji FUJII
Japanese Journal of Complementary and Alternative Medicine 2014;11(2):103-105
In this study, we showed the bioavailability of ubiquinol (QH) in the form of water-dispersive powder.Two groups of 5 healthy young subjects received single oral administration of 100 mg of QH in the form of a soft capsule containing QH dissolved in safflower oil or 40% water-dispersive powder in the fasting period, and changes in the plasma QH concentration were monitored over time.The water-dispersive powder form of QH exhibited superior bioavailability even when administered in the fasting period.
2.Epidemiological survey of severe fever with thrombocytopenia syndrome virus in ticks in Nagasaki, Japan
Daisuke Hayasaka ; Satoshi Shimada ; Kotaro Aoki ; Yuki Takamatsu ; Leo Uchida ; Masahiro Horio ; Yu Fuxun ; Kouichi Morita
Tropical Medicine and Health 2015;advpub(0):-
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease that is endemic in East Asia. The SFTS virus (SFTSV) is transmitted to other organisms by infected ticks and is endemic to Nagasaki in western Japan. However, epidemiological information regarding SFTSV in Nagasaki ticks has not been elucidated. In this study, we first examined the sensitivities of SFTSV gene detection by real-time RT-PCR and virus isolation in cultured cells and mice. These methods could detect SFTSV in the samples containing more than 4 × 100 ffu. Next, we attempted to isolate SFTSV and to detect viral gene in 2,222 nymph and adult ticks collected from May to August 2013 among seven regions of Nagasaki. However, neither virus isolation nor viral gene detection were confirmed in those tick pools. SFTSV positivity rates are considered very low in ticks and viral loads in ticks are also very limited. Further investigation by increasing the number of ticks and including larval samples in the investigation, as well as improved detection methods, may be required to find SFTSV-positive ticks in this region.
3.Relation between Awareness of Medical Students and the Understanding of Kampo Medicine
Norio IIZUKA ; Kouichi UCHIDA ; Isao SAKAIDA ; Yusuke FUJITA ; Yoshihiko HAMAMOTO ; Masaaki OKA
Kampo Medicine 2012;63(1):57-64
To clarify how students' awareness is linked to their understanding of Kampo medicine, we carried out a questionnaire and test for 94 fourth-year medical students (MS) following all the lectures at Yamaguchi University School of Medicine.Gender was not associated with performance in the test.MS having been admitted to an undergraduate program had a significantly better performance record in the test than did MS who had passed the usual university entrance examinations (P < 0.0001).MS who had experienced the efficacy of Kampo medicine had a significantly better performance record in the test than did MS who had not.Understanding of both the merits and demerits of Kampo medicine, a desire to see bedside teaching of Kampo medicine currently or in the future, and a desire to integrate Kampo medicine with primary care in the future were associated with a better performance record in the test.Multiple logistic regression analysis showed that admission to an undergraduate program (odds ratio (OR) = 6.9) and having experienced the efficacy of Kampo medicine (OR = 4.5) were independently contributing factors to a good performance record in the test.Taken together, these results suggest that experiencing efficacy and bedside teaching are needed to increase understanding of Kampo medicine for MS.
4.Epidemiological Survey of Severe Fever with Thrombocytopenia Syndrome Virus in Ticks in Nagasaki, Japan
Daisuke Hayasaka ; Satoshi Shimada ; Kotaro Aoki ; Yuki Takamatsu ; Leo Uchida ; Masahiro Horio ; Yu Fuxun ; Kouichi Morita
Tropical Medicine and Health 2015;43(3):159-164
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease endemic in East Asia. Transmitted to other organisms by infected ticks, the SFTS virus (SFTSV) and is endemic to Nagasaki in western Japan. However, epidemiological information regarding SFTSV in Nagasaki ticks has not been available to date. In this study, we began by examining the sensitivities of SFTSV gene detection by real-time RT-PCR and virus isolation in cultured cells and mice. These methods could detect SFTSV in the samples containing more than 4 × 100 ffu. Next, we attempted to isolate SFTSV and to detect viral gene in 2,222 nymph and adult ticks collected from May to August 2013 among seven regions of Nagasaki. However, neither virus isolation nor viral gene detection were confirmed in the tick pools. SFTSV positivity rates are considered to be very low in ticks, and viral loads are also very limited. Further investigations increasing the number of ticks and including larval samples as well as improved detection methods, may be required to find SFTSV-positive ticks in this region.
5.Successful Emergency Operation for a Ruptured Anastomotic False Aneurysm of Atypical Coarctation Due to Aortitis Syndrome: Report of a Case.
Yoshiaki MORI ; Tetsuo HADAMA ; Hidemi TAKASAKI ; Keiji OKA ; Osamu SHIGEMITSU ; Tatsunori KIMURA ; Shinji MIYAMOTO ; Kouichi TANAKA ; Michitoshi ICHIMANDA ; Yuzou UCHIDA ; Joji SHIRABE
Japanese Journal of Cardiovascular Surgery 1991;20(7):1326-1330
A 37-year-old female was admitted to our hospital because of haemoptysis. She had undergone descending thoracic aorta-abdominal aorta bypass grafting 11 years previously. Then the diagnosis was atypical coarctation due to aortitis syndrome. No follow up had been continued. Angiogram and CTscan disclosed a false aneurysm at the anastomotic site of the descending thoracic aorta, which was ruptured into the left lung. An emergency operation was performed. A new extra-anatomical ascending aorta abdominal aorta bypass was constructed using 16mm Dacron prosthesis, and three permanent clamps were employed for thromboexclusion of the descending aorta, previous bypass graft and the ruptured aneurysm. At present, three years after the operation, she is leading normal life with medication of hypotensive drugs. Pathogenesis, surgical approach and long-term postoperative care were discussed.
6.First Isolation of Dengue Virus from the 2010 Epidemic in Nepal
Basu D. Pandey ; Takeshi Nabeshima ; Kishor Pandey ; Saroj P. Rajendra ; Yogendra Shah ; Bal R. Adhikari ; Govinda Gupta ; Ishan Gautam ; Mya M. N. Tun ; Reo Uchida ; Mahendra Shrestha ; Ichiro Kurane ; Kouichi Morita
Tropical Medicine and Health 2013;41(3):103-111
Dengue is an emerging disease in Nepal and was first observed as an outbreak in nine lowland districts in 2006. In 2010, however, a large epidemic of dengue occurred with 4,529 suspected and 917 serologically-confirmed cases and five deaths reported in government hospitals in Nepal. The collection of demographic information was performed along with an entomological survey and clinical evaluation of the patients. A total of 280 serum samples were collected from suspected dengue patients. These samples were subjected to routine laboratory investigations and IgM-capture ELISA for dengue serological identification, and 160 acute serum samples were used for virus isolation, RT-PCR, sequencing and phylogenetic analysis. The results showed that affected patients were predominately adults, and that 10% of the cases were classified as dengue haemorrhagic fever/ dengue shock syndrome. The genetic characterization of dengue viruses isolated from patients in four major outbreak areas of Nepal suggests that the DENV-1 strain was responsible for the 2010 epidemic. Entomological studies identified Aedes aegypti in all epidemic areas. All viruses belonged to a monophyletic single clade which is phylogenetically close to Indian viruses. The dengue epidemic started in the lowlands and expanded to the highland areas. To our knowledge, this is the first dengue isolation and genetic characterization reported from Nepal.