1
|
Deguchi S, Iwakami A, Tujigiwa M, Otake H, Mano Y, Yamamoto N, Nakazawa Y, Misra M, Nagai N. Recovery from indomethacin-induced gastrointestinal bleeding by treatment with teprenone. J Pharm Health Care Sci 2023; 9:44. [PMID: 38012767 PMCID: PMC10683117 DOI: 10.1186/s40780-023-00312-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/12/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Gastrointestinal injuries caused by nonsteroidal anti-inflammatory drugs (NSAIDs) is a serious side effect in patients with rheumatoid arthritis (RA). However, effective therapeutic strategies have yet to be established. In this study, we investigated the therapeutic effects of teprenone (TEP), a gastric mucosal protective drug, on NSAID-induced gastrointestinal injuries in rats with RA (AA rats). METHODS Gastrointestinal injury was induced by oral administration of indomethacin (IMC), a typical NSAID. TEP was orally administered after IMC-induced gastrointestinal bleeding, and the stomach, jejunum, and ileum were excised. RESULTS On day 14 of IMC administration, lesion areas in the stomach, jejunum, and ileum were significantly larger in AA rats than in normal rats. When TEP was orally administered to AA rats, the lesion areas in the stomach, jejunum, and ileum significantly decreased compared with those in control rats (IMC-induced AA rats). Therefore, we measured NOS2 mRNA and NO levels, which were significantly decreased in rats with IMC-induced AA after treatment with TEP. CONCLUSIONS These results suggest that the oral administration of TEP may be useful for the treatment of NSAID-induced gastrointestinal injuries in patients with RA.
Collapse
Affiliation(s)
- Saori Deguchi
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka,Osaka, 577-8502, Japan
| | - Ayusa Iwakami
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka,Osaka, 577-8502, Japan
| | - Mizuki Tujigiwa
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka,Osaka, 577-8502, Japan
| | - Hiroko Otake
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka,Osaka, 577-8502, Japan
| | - Yu Mano
- Department of Pharmacy, Bell Land General Hospital, 500-3, Higashiyama, Naka-ku, Sakai, Osaka, 599-8247, Japan
| | - Naoki Yamamoto
- Support Office for Bioresource Research, Research Promotion Headquarters, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Yosuke Nakazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Manju Misra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research; Opposite AirForce Station, Palaj Basan Road, Village Palaj, Gandhinagar, 382355, Gujarat, India
- Graduate school of Pharmacy, Gujarat Technological University Gandhinagar Campus Nr. Government Polytechnic K-6 Circle, E-4 Electronic Estate G.I.D.C, Sector-26, Gandhinagar, 382028, Gujarat, India
| | - Noriaki Nagai
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka,Osaka, 577-8502, Japan.
| |
Collapse
|
2
|
Otake H, Mano Y, Deguchi S, Ogata F, Kawasaki N, Nagai N. Effect of Ointment Base on the Skin Wound-Healing Deficits in Streptozotocin-Induced Diabetic Rat. Biol Pharm Bull 2023; 46:707-712. [PMID: 37121696 DOI: 10.1248/bpb.b22-00871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Wound-healing deficits of the skin, one of the most common complications in patients with diabetes, delay wound healing, significantly reducing the patient's QOL. Therefore, the topical treatment of wound areas with drug-containing ointments and dressings is important. In this study, we investigated the effect of various ointment bases on skin wound healing in normal and streptozotocin-induced diabetic rats (STZ rats). Three ointment bases were used: white ointment (oil-based), absorbent cream (emulsion-based, w/o), and macrogol ointment (water-based). Skin wound healing in STZ rats was delayed compared with that in normal rats. Each of the three ointment bases was applied to the skin wound area in normal rats, and there was no difference in the therapeutic effect. The therapeutic effect of both white ointment and absorbent cream was higher in the STZ rats group than that in the non-treated group, and delayed wound healing was observed in STZ rats treated with macrogol ointment. In conclusion, skin wound healing in STZ rats is affected by the properties of the ointment base, and it is important to use an ointment base that controls the drying of the wound area in STZ rats. These findings provide information for the selection of ointment bases useful for application to skin wounds in patients with diabetes.
Collapse
Affiliation(s)
| | - Yu Mano
- Department of Pharmacy, Belland General Hospital
| | | | | | | | | |
Collapse
|
3
|
Edazawa R, Mano Y, Furuya N. Effect of antimicrobial agent on biofilm formed by Staphylococcus epidermidis from blood culture: Inhibition of biofilm seeding by vancomycin. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
4
|
Ikarashi K, Hashimoto R, Mano Y, Nobuhiko F. The inhibitory activity of magnolol on Candida tropicalis. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
5
|
Matsumoto T, Itoh S, Yoshizumi T, Kurihara T, Yoshiya S, Mano Y, Takeishi K, Harada N, Ikegami T, Soejima Y, Baba H, Mori M. C-reactive protein : albumin ratio in patients with resectable intrahepatic cholangiocarcinoma. BJS Open 2020; 4:1146-1152. [PMID: 32959537 PMCID: PMC7709369 DOI: 10.1002/bjs5.50348] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 07/15/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The C-reactive protein : albumin ratio (CAR) has been reported as a novel prognostic marker in several cancers. The aim of this study was to investigate the prognostic value of CAR in patients with intrahepatic cholangiocarcinoma (ICC). METHODS This was a single-centre retrospective study of patients who underwent surgery for ICC in a university hospital in Japan between 1998 and 2018. CAR, Glasgow Prognostic Score (GPS) and modified GPS (mGPS) were calculated. Their correlation with recurrence-free survival (RFS) and overall survival (OS) was analysed with Cox proportional hazards models. RESULTS Seventy-two patients were included in the study. Patients were divided into two groups according to the optimal CAR cut-off value of 0·02. CAR above 0·02 was associated with higher carbohydrate antigen 19-9 levels (20·5 versus 66·1 units/ml for CAR of 0·02 or less; P = 0·002), larger tumour size (3·2 versus 4·4 cm respectively; P = 0·031) and a higher rate of microvascular invasion (9 of 28 versus 25 of 44; P = 0·041). RFS and OS were shorter in patients with CAR above 0·02: hazard ratio (HR) 4·31 (95 per cent c.i. 2·02 to 10·63) and HR 4·80 (1·85 to 16·40) respectively. In multivariable analysis CAR above 0·02 was an independent prognostic factor of RFS (HR 3·29 (1·33 to 8·12); P < 0·001), but not OS. CONCLUSIONS CAR was associated with prognosis in patients who had hepatic resection for ICC.
Collapse
Affiliation(s)
- T. Matsumoto
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
- Department of Gastroenterological SurgeryGraduate School of Life Sciences, Kumamoto UniversityKumamotoJapan
| | - S. Itoh
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - T. Yoshizumi
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - T. Kurihara
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - S. Yoshiya
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Y. Mano
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - K. Takeishi
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - N. Harada
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - T. Ikegami
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Y. Soejima
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - H. Baba
- Department of Gastroenterological SurgeryGraduate School of Life Sciences, Kumamoto UniversityKumamotoJapan
| | - M. Mori
- Department of Surgery and ScienceGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| |
Collapse
|
6
|
Albone E, Cheng X, Verdi A, Jacob S, Fernando S, Furuuchi K, Fulmer J, Soto A, Drozdowski B, Mano Y, Nakatani Y, Uenaka T. 579P MORAb-109: A site-specific eribulin-conjugated ADC targeting human mesothelin. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
7
|
Watanabe A, Yoshizumi T, Harimoto N, Kogure K, Ikegami T, Harada N, Itoh S, Takeishi K, Mano Y, Yoshiya S, Morinaga A, Araki K, Kubo N, Mori M, Shirabe K. Right hepatic venous system variation in living donors: a three-dimensional CT analysis. Br J Surg 2020; 107:1192-1198. [PMID: 32335898 DOI: 10.1002/bjs.11602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/16/2020] [Accepted: 02/27/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND The right hepatic venous system consists of the right hepatic vein (RHV) and inferior RHVs (IRHVs). When the right posterior section is used as a graft for liver transplantation, understanding variations and relationships between the RHV and IRHVs is critical for graft venous return and hepatic vein reconstruction. This study aimed to evaluate variations in the hepatic veins and the relationships between them. METHODS The medical records and CT images of patients who underwent hepatectomy as liver donors were assessed retrospectively. The relationship between the veins was evaluated by three-dimensional CT. RESULTS The configuration of the posterior section was classified into one of eight types based on the RHV and IRHVs in 307 patients. Type 1a (103 of 307), type 1b (139 of 307) and type 2a (40 of 307) accounted for 91·9 per cent of the total. The diameter of the RHV extending towards the inferior vena cava had a significant inverse correlation with that of the IRHV (r2 = -0·615, P < 0·001). Type 1a, which had no IRHVs, had the RHV with the largest diameter; conversely, type 2a, which had a large IRHV, had the RHV with the smallest diameter. CONCLUSION The hepatic venous system of the right posterior section was classified into eight types, with an inverse relationship between RHV and IRHV sizes. This information is useful for segment VII resection or when the right liver is used as a transplant graft.
Collapse
Affiliation(s)
- A Watanabe
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harimoto
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - K Kogure
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - T Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Takeishi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Yoshiya
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Morinaga
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Araki
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - N Kubo
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| | - M Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Shirabe
- Department of Hepatobiliary and Pancreatic Surgery, Maebashi Gunma, Japan.,Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi Gunma, Japan
| |
Collapse
|
8
|
Mano Y, Otake H, Shibata T, Kubo E, Sasaki H, Nagai N. Enhancement of Amyloid β 1-43 Production in the Lens Epithelium of Japanese Type 2 Diabetic Patients. Biomedicines 2020; 8:biomedicines8040087. [PMID: 32294928 PMCID: PMC7235728 DOI: 10.3390/biomedicines8040087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 11/18/2022] Open
Abstract
We investigated whether the accumulation of amyloid β-protein (Aβ) is enhanced in the lenses of diabetic patients. Lens epithelium samples were collected from Japanese patients during cataract surgery, and the Aβ levels and gene expression of Aβ-producing and -degrading enzymes in the samples were measured by ELISA and real-time RT-PCR, respectively. The Aβ1–43 levels in lenses of non-diabetic patients were low (0.11 pmol/g protein), while the levels in lenses of diabetic patients were significantly (6-fold) higher. Moreover, the Aβ1–43/total-Aβ ratio in the lenses of diabetic patients was also significantly higher than non-diabetic patients (p < 0.05). In addition, the mRNA levels for Aβ-producing enzymes were also enhanced in the lenses of diabetic patients. In contrast to the results for Aβ-producing enzymes, the mRNAs for the Aβ-degrading enzymes in the lenses of diabetic patients were significantly lower than in non-diabetic patients (p < 0.05). Furthermore, Aβ1–43/total-Aβ ratio in lenses was found to increase with plasma glucose level. In conclusion, these results suggest that high glucose levels cause both an increase in Aβ production and a decrease in Aβ degradation, and these changes lead to the enhancement in Aβ1–43 accumulation in the lenses of diabetic patients. These findings are useful for developing therapies for diabetic cataracts and for developing anti-cataract drugs.
Collapse
Affiliation(s)
- Yu Mano
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.M.); (H.O.)
| | - Hiroko Otake
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.M.); (H.O.)
| | - Teppei Shibata
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan; (T.S.); (E.K.); (H.S.)
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan; (T.S.); (E.K.); (H.S.)
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, 1-1 Daigaku Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan; (T.S.); (E.K.); (H.S.)
| | - Noriaki Nagai
- Faculty of Pharmacy, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan; (Y.M.); (H.O.)
- Correspondence: ; Tel.: +81-6-4307-3638
| |
Collapse
|
9
|
Nagai N, Mano Y, Otake H, Shibata T, Kubo E, Sasaki H. Changes in mitochondrial cytochrome c oxidase mRNA levels with cataract severity in lens epithelia of Japanese patients. Mol Med Rep 2019; 19:5464-5472. [PMID: 31059062 DOI: 10.3892/mmr.2019.10214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 04/26/2019] [Indexed: 11/05/2022] Open
Abstract
We previously reported that the collapse of ATP production via mitochondrial damage causes ATPase dysfunction, resulting in the onset or progression of lens opacification in cataracts in model rats. In the present study, it was investigated whether the mRNA expression levels of the three subtypes of mitochondrial cytochrome c oxidase (MTCO)1, 2 and 3 and ATP content change with the type and severity of cataracts in human lens. Samples of lens epithelium were collected from Japanese patients during cataract surgery, and the type and severity of the cataracts (grade) were determined according to the WHO classification [cortical (COR), nuclear (NUC), posterior subcapsular (PSC) opacification]. The MTCO1‑3 mRNA expression levels in patients with grade‑1 COR, NUC and PSC opacification were significantly enhanced compared with those of normal patients. The enhanced MTCO1‑3 mRNA levels subsequently decreased in patients with COR, and the MTCO1‑3 mRNA levels and ATP levels in patients with grade‑3 COR were similar to those in normal patients. However, the mRNA expression levels of MTCO3 in patients with grade 3‑NUC opacification and MTCO1‑3 in patients with grade‑3 PSC opacification, along with the ATP content, were significantly lower than in patients without cataracts. In conclusion, it was revealed that ATP production in lens epithelium is enhanced in early‑stage cataracts (grade‑1) in Japanese patients with COR, NUC and PSC opacification. In addition, in severe cataracts (grade‑3), ATP production and content are strongly decreased in Japanese patients with PSC opacification. ATP depletion in human lens epithelium with PSC opacification may promote lens opacification by ATPase dysfunction.
Collapse
Affiliation(s)
- Noriaki Nagai
- Department of Pharmacy, Kindai University, Higashi‑Osaka, Osaka 577‑8502, Japan
| | - Yu Mano
- Department of Pharmacy, Kindai University, Higashi‑Osaka, Osaka 577‑8502, Japan
| | - Hiroko Otake
- Department of Pharmacy, Kindai University, Higashi‑Osaka, Osaka 577‑8502, Japan
| | - Teppei Shibata
- Department of Ophthalmology, Kanazawa Medical University, Kanazawa, Ishikawa 920‑0293, Japan
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Kanazawa, Ishikawa 920‑0293, Japan
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Kanazawa, Ishikawa 920‑0293, Japan
| |
Collapse
|
10
|
Itoh S, Yugawa K, Shimokawa M, Yoshiya S, Mano Y, Takeishi K, Toshima T, Maehara Y, Mori M, Yoshizumi T. Prognostic significance of inflammatory biomarkers in hepatocellular carcinoma following hepatic resection. BJS Open 2019; 3:500-508. [PMID: 31388642 PMCID: PMC6677099 DOI: 10.1002/bjs5.50170] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 02/27/2019] [Indexed: 12/24/2022] Open
Abstract
Background Cancer‐related inflammation has been correlated with cancer prognosis. This study evaluated inflammatory biomarkers, including neutrophil‐to‐lymphocyte ratio (NLR), platelet‐to‐lymphocyte ratio (PLR) and lymphocyte‐to‐monocyte ratio (LMR), programmed death ligand (PD‐L) 1 expression, and tumour microenvironment in relation to prognosis and clinicopathological features of patients with hepatocellular carcinoma (HCC) undergoing curative hepatic resection. Methods Patients who had liver resection for HCC in 2000–2011 were analysed. Univariable and multivariable analyses were conducted for overall (OS) and recurrence‐free (RFS) survival. Immunohistochemical analyses of PD‐L1, CD8 and CD68 expression were performed. HCC cell lines were evaluated for PD‐L1 expression. A subgroup analysis was conducted to determine patient features, survival and the tumour microenvironment. Results were validated in a cohort of patients with HCC treated surgically in 2012–2016. Results Some 281 patients who underwent hepatic resection for HCC were included. Multivariable analysis showed that low LMR was an independent prognostic factor of OS (hazard ratio (HR) 1·59, 95 per cent c.i. 1·00 to 2·41; P = 0·045) and RFS (HR 1·47, 1·05 to 2·04; P = 0·022) after resection. Low preoperative LMR values were correlated with higher α‐fetoprotein values (P < 0·001), larger tumour size (P < 0·001), and high rates of poor differentiation (P = 0·035) and liver cirrhosis (P = 0·008). LMR was significantly lower in PD‐L1‐positive patients than in those with PD‐L1 negativity (P < 0·001). Results were confirmed in the validation cohort. PD‐L1 expression was upregulated in HCC cell lines treated with interferon‐γ and co‐cultured with THP‐1 monocyte cells. Conclusion LMR is an independent predictor of survival after hepatic resection in patients with HCC. Modulation of the immune checkpoint pathway in the tumour microenvironment is associated with a low LMR.
Collapse
Affiliation(s)
- S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - K Yugawa
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - M Shimokawa
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - S Yoshiya
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - K Takeishi
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - T Toshima
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Y Maehara
- Department of Surgery Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers Fukuoka Japan
| | - M Mori
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| |
Collapse
|
11
|
Kimura K, Kudo K, Kurihara T, Yoshiya S, Mano Y, Takeishi K, Itoh S, Harada N, Ikegami T, Yoshizumi T, Ikeda T. Rendezvous Technique Using Double Balloon Endoscope for Removal of Multiple Intrahepatic Bile Duct Stones in Hepaticojejunostomy After Living Donor Liver Transplant: A Case Report. Transplant Proc 2018; 51:579-584. [PMID: 30879594 DOI: 10.1016/j.transproceed.2018.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/09/2018] [Indexed: 02/08/2023]
Abstract
Cholangitis is a major complication following transplantation. We report a living donor liver transplant (LDLT) patient with cholangitis due to multiple stones in the intrahepatic bile duct during hepaticojejunostomy anastomosis, who was successfully treated with the rendezvous technique using double balloon endoscope. A 64-year-old woman underwent LDLT with right lobe graft and hepaticojejunostomy for Wilson disease. There was bile leakage with biliary peritonitis, which was treated conservatively after transplant. Two years after surgery, she developed reiterated cholangitis due to stenosis of hepaticojejunostomy anastomosis and multiple stones in the intrahepatic bile ducts. Percutaneous transhepatic biliary drainage was performed. The size of the drainage tube was increased, and the anastomotic area was dilated in a stepwise manner using a balloon catheter. The stones were crushed and lithotomy was performed using electronic hydraulic lithotripsy through cholangioscopy. Finally, lithotomy was performed for the remaining stones through endoscopic retrograde cholangiography with the rendezvous technique using the double balloon endoscope. Rendezvous approach with percutaneous transhepatic biliary drainage and double balloon endoscopic retrograde cholangiography was an effective treatment for the multiple intrahepatic stones in hepaticojejunostomy following LDLT with right lobe graft.
Collapse
Affiliation(s)
- K Kimura
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - K Kudo
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Kurihara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Yoshiya
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Takeishi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikeda
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
12
|
Soejima Y, Yoshizumi T, Ikegami T, Harimoto N, Harada N, Itoh S, Toshima T, Motomura T, Mano Y, Ohira M, Bekki Y, Maehara Y. Real-Time Ultrasound-Guided Thrombectomy for Extensive Portal Vein Thrombosis in Living Donor Liver Transplantation. Transplant Proc 2018; 50:3549-3551. [DOI: 10.1016/j.transproceed.2018.08.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/24/2018] [Accepted: 08/16/2018] [Indexed: 10/28/2022]
|
13
|
Nakajima K, Kimura T, Fujisawa T, Katsumata Y, Nishiyama T, Aizawa Y, Mano Y, Kageyama T, Mitamura H, Fukuda K, Kohsaka S, Takatsuki S. P6600Improvement in quality of life in patients that underwent catheter ablation for persistent atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Nakajima
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - T Kimura
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - T Fujisawa
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - Y Katsumata
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - T Nishiyama
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - Y Aizawa
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - Y Mano
- Tokyo Dental College Ichikawa General Hospita, Cardiology, Ichikawa, Japan
| | - T Kageyama
- Tachikawa Hospital, Cardiology, Tachikawa, Japan
| | - H Mitamura
- Tachikawa Hospital, Cardiology, Tachikawa, Japan
| | - K Fukuda
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - S Kohsaka
- Keio University School of Medicine, cardiology, Tokyo, Japan
| | - S Takatsuki
- Keio University School of Medicine, cardiology, Tokyo, Japan
| |
Collapse
|
14
|
Motomura T, Yoshizumi T, Ohira M, Mano Y, Toshima T, Itoh S, Harada N, Harimoto N, Ikegami T, Soejima Y, Maehara Y. Successful Recombinant Thrombomodulin Treatment for Thrombotic Microangiopathy After Liver Transplantation: A Case Report. Transplant Proc 2018; 49:2409-2410. [PMID: 29198692 DOI: 10.1016/j.transproceed.2017.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/23/2017] [Indexed: 12/27/2022]
Abstract
Transplant-associated thrombotic microangiopathy (TA-TMA) is a rare but severe complication after liver transplantation. In contrast to other thrombotic microangiopathies, treatment for TA-TMA has yet to be clarified. A 52-year-old male patient with liver cirrhosis due to hepatitis C underwent split liver transplantation from a deceased donor. His clinical course was without complication until 4 days after transplantation, when he experienced impaired consciousness, hemolytic anemia with fragmented erythrocytes, and marked thrombocytopenia. TA-TMA was diagnosed, and recombinant thrombomodulin was administered for 4 days. The patient's clinical symptoms and laboratory data rapidly improved. He has been followed up for 6 months and has not shown any complications. The pathogenesis of TA-TMA is endothelial damage in the vasculature. Recombinant thrombomodulin, an endothelial cell-protecting agent, is a promising new therapeutic choice for TA-TMA after liver transplantation.
Collapse
Affiliation(s)
- T Motomura
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - T Yoshizumi
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Ohira
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Toshima
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harimoto
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikegami
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Soejima
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
15
|
Harimoto N, Yugawa K, Ikegami T, Ohira M, Mano Y, Motomura T, Toshima T, Itoh S, Harada N, Soejima Y, Yoshizumi T, Maehara Y, Oda Y. Hepatobiliary and Pancreatic: Pregnancy induced hepatic veno-occlusive disease requiring liver transplantation. J Gastroenterol Hepatol 2018; 33:9. [PMID: 29284078 DOI: 10.1111/jgh.13975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- N Harimoto
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Yugawa
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Ohira
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Motomura
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Toshima
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Soejima
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
16
|
Nagai N, Mano Y, Otake H, Shibata T, Kubo E, Sasaki H. Amyloid β1-43 Accumulates in the Lens Epithelium of Cortical Opacification in Japanese Patients. Invest Ophthalmol Vis Sci 2017; 58:3294-3302. [PMID: 28666280 DOI: 10.1167/iovs.17-22065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose We investigated the accumulation of amyloid β (Aβ1-40, Aβ1-42, Aβ1-43) in the lens epithelium of patients with opacification of five different types (cortical cataract [COR]; nuclear cataract [NUC]; posterior subcapsular cataract [PSC]; retrodots [RD]; and water clefts [WC]). Methods Samples were collected from Japanese patients taken during cataract surgery; Aβ levels and mRNA expression were determined by ELISA and a real-time RT-PCR method, respectively. Results Levels of Aβ1-40 and Aβ1-42 in the lens epithelium of patients with COR, NUC, PSC, RD, and WC showed no significant differences in comparison with transparent lens epithelium. Levels of Aβ1-43 in the lens epithelium of patients with PSC and WC were not detected, and NUC and RD were slightly elevated. In contrast to the results in these cataract types, high Aβ1-43 levels were observed in the lens epithelium of patients with COR, and a close relationship was observed between Aβ1-43 levels and the degree of lens opacification (R = 0.8229, n = 6). The levels of Aβ1-43 were also higher in the lens epithelium of patients with mixed-cataract showing cortical opacification, and the Aβ1-43 levels in the lens epithelium of mixed-cataract patients with cortical opacification was significantly higher than in that of mixed-cataract patients without cortical opacification. In addition, the level of an amyloid precursor protein mRNA in the lens epithelium of mixed-cataract patients with cortical opacification was significantly higher than in transparent lens and mixed-cataract patients without cortical opacification. Conclusions We found high levels of Aβ1-43 accumulation in the lens epithelium of Japanese patients with cortical opacification.
Collapse
Affiliation(s)
- Noriaki Nagai
- Faculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, Japan
| | - Yu Mano
- Faculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, Japan
| | - Hiroko Otake
- Faculty of Pharmacy, Kindai University, Higashi-Osaka, Osaka, Japan
| | - Teppei Shibata
- Department of Ophthalmology, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| |
Collapse
|
17
|
Hayakawa N, Sato Y, Nagasaka A, Mano Y, Nagasaka T, Nakai A, Iwase K, Yoshida S. High levels of DNA polymerase β mRNA corresponding with the high activity in Graves' thyroid tissue. J Endocrinol Invest 2017; 40:385-389. [PMID: 27848228 DOI: 10.1007/s40618-016-0571-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/18/2016] [Indexed: 10/20/2022]
Abstract
INTRODUCTION High DNA polymerase β activity has been observed in the thyroid tissue of patients with Graves' disease (Nagasaka et al. in Metabolism 37:1051-1054, 1988). This fact aroused our interest in whether the alteration of DNA polymerase β activity depends on DNA polymerase β (DNA poly β) mRNA levels, which may be modulated by thyroid-stimulating hormone (TSH) or thyroid-stimulating substances, i.e. TSH receptor antibody (TRAb). RESULT Addition of TSH or TRAb to primary cultures of Graves' disease thyroid cells for 4 h led to no increase in DNA poly β mRNA levels. In contrast, thyroid hormone synthesizing enzyme, peroxidase, mRNA levels increased fivefold after coculture with TSH and TRAb, even though DNA poly β activity and mRNA levels are already significantly higher in Graves' disease thyroid tissues, compared with normal thyroid tissue. DISCUSSION These results indicate that DNA poly β expression in Graves' disease thyroid cells may be maximally activated or plateau in response to thyroid-stimulating immunoglobulins, or that the activation of to poly β expression may occur via pathways other than the G protein and cyclic AMP system.
Collapse
Affiliation(s)
- N Hayakawa
- Department of Internal Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192, Japan
| | - Y Sato
- Faculty of Agriculture, Nagoya University, Nagoya, 466-8550, Japan
| | - A Nagasaka
- Department of Internal Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, 470-1192, Japan
| | - Y Mano
- Fujita Health University, Toyoake, Aichi, 470-1192, Japan.
| | - T Nagasaka
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo, 113-8655, Japan
| | - A Nakai
- Nakai Clinic, Chita, Aichi, 478-0041, Japan
| | - K Iwase
- Department of Surgery, School of Medicine, Fujita Health University, Toyoake, Aichi, 470-1192, Japan
| | - S Yoshida
- Laboratory of Cancer Cell Biology, Research Institute for Disease Mechanism and Control , Nagoya University School of Medicne, Nagoya University, Nagoya, 466-8550, Japan
| |
Collapse
|
18
|
Abstract
Disulfiram (DSF) is a dimer of diethyldithiocarbamate (DDC) that we previously added to a solution of 2-hydroxypropyl-β-cyclodextrin (DSF solution). We found that the instillation of this DSF solution delayed lens opacification in a hereditary cataractous ICR/f rat. In this study, we attempted to design an ophthalmic formulation containing DSF nanoparticles for use as a lens targeted drug delivery system (nano-DSF suspension), and investigated the changes in drug content in the lens after the instillation of DSF solution or nano-DSF suspension. The nano-DSF suspension was prepared by a bead mill method to yield a mean particle size of nano-DSF of 181 nm. Following the instillation of 1.4% DSF solution or the nano-DSF suspension, DDC was detected only in the aqueous humor and lens; in both, the area under the curve (AUC) and mean residence time (MRT) for the nano-DSF suspension were higher than for the DSF solution. In addition, we found that the DDC residence time in the cortex and nucleus of the lens was higher than in the capsule-epithelium. Although DDC was not detected in the cortex and nucleus of lenses following the instillation of the 1.4% DSF solution, the instillation of a 1.4% nano-DSF suspension led to the accumulation of DDC in both areas. In conclusion, it is possible that the instillation of a nano-DSF suspension can supply more DDC into the aqueous humor and lens than a conventional formulation, and these findings provide information significant for the prevention of cataracts and the design of a lens targeted drug delivery system.
Collapse
|
19
|
Hattori Y, Kotani T, Tsuda H, Mano Y, Tu L, Li H, Hirako S, Ushida T, Imai K, Nakano T, Sato Y, Miki R, Sumigama S, Iwase A, Toyokuni S, Kikkawa F. Maternal molecular hydrogen treatment attenuates lipopolysaccharide-induced rat fetal lung injury. Free Radic Res 2015; 49:1026-37. [PMID: 25947958 DOI: 10.3109/10715762.2015.1038257] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Maternal inflammation is associated with spontaneous preterm birth and respiratory impairment among premature infants. Recently, molecular hydrogen (H2) has been reported to have a suppressive effect on oxidative stress and inflammation. The aim of this study was to evaluate the effects of H2 on fetal lung injury caused by maternal inflammation. Cell viability and the production of interleukin-6 (IL-6) and reactive oxygen species (ROS) were examined by treatment with lipopolysaccharide (LPS) contained in ordinal or H2-rich medium (HM) using a human lung epithelial cell line, A549. Pregnant Sprague Dawley rats were divided into three groups: Control, LPS, and HW + LPS groups. Rats were injected with phosphate-buffered saline (Control) or LPS intraperitoneally (LPS) on gestational day 19 and provided H2 water (HW) ad libitum for 24 h before LPS injection (HW + LPS). Fetal lung samples were collected on day 20, and the levels of apoptosis, oxidative damage, IL-6, and vascular endothelial growth factor (VEGF) were evaluated using immunohistochemistry. The number of apoptotic cells, and levels of ROS and IL-6 were significantly increased by LPS treatment, and repressed following cultured with HM in A549 cells. In the rat models, the population positive for cleaved caspase-3, 8-hydroxy-2'-deoxyguanosine, IL-6, and VEGF was significantly increased in the LPS group compared with that observed in the Control group and significantly decreased in the HW + LPS group. In this study, LPS administration induced apoptosis and oxidative damage in fetal lung cells that was ameliorated by maternal H2 intake. Antenatal H2 administration may decrease the pulmonary mobility associated with inflammation in premature infants.
Collapse
Affiliation(s)
- Y Hattori
- Departments of Gynecology and Obstetrics, Nagoya University Graduate School of Medicine , Nagoya , Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Nagai N, Yoshioka C, Mano Y, Tnabe W, Ito Y, Okamoto N, Shimomura Y. A nanoparticle formulation of disulfiram prolongs corneal residence time of the drug and reduces intraocular pressure. Exp Eye Res 2015; 132:115-23. [PMID: 25633346 DOI: 10.1016/j.exer.2015.01.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 12/04/2014] [Accepted: 01/24/2015] [Indexed: 11/30/2022]
Abstract
The goal in the search for successful therapies for glaucoma is the reduction of intraocular pressure (IOP), and the search for effective eye drops that reduce IOP is a high priority. We previously reported the potential of a 2-hydroxypropyl-β-cyclodextrin (HPβCD) solution containing 0.5% DSF (DSF solution) to provide effective anti-glaucoma treatment in eye drop form. In this study, we designed new ophthalmic formulations containing 0.5% DSF nanoparticles prepared by a bead mill method (DSFnano dispersion; particle size 183 ± 92 nm, mean ± S.D.), and compared the IOP-reducing effects of a DSFnano dispersion with those of a DSF solution. The high stability of the DSFnano dispersion was observed until 7 days after preparation, and the DSFnano dispersion showed high antimicrobial activity against Escherichia coli (ATCC 8739). In transcorneal penetration experiments using rabbit corneas, only diethyldithiocarbamate (DDC) was detected in the aqueous humor, while no DSF was detected. The DDC penetration level (area under the curve, AUC) and corneal residence time (mean residence time, MRT) of the DSFnano dispersion were approximately 1.45- and 1.44-fold higher than those of the DSF, respectively. Moreover, the IOP-reducing effects of the DSFnano dispersion were significantly greater than those of the DSF solution in rabbits (the IOP was enhanced by placing the rabbits in a dark room for 5 h). In addition, DSFnano dispersion are tolerated better by a corneal epithelial cell than DSF solution and commercially available timolol maleate eye drops. It is possible that dispersions containing DSF nanoparticles will provide new possibilities for the effective treatment of glaucoma, and that an ocular drug delivery system using drug nanoparticles may expand their usage as therapy in the ophthalmologic field. These findings provide significant information that can be used to design further studies aimed at developing anti-glaucoma drugs.
Collapse
Affiliation(s)
- Noriaki Nagai
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Chiaki Yoshioka
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yu Mano
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Wataru Tnabe
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yoshimasa Ito
- Faculty of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Norio Okamoto
- Department of Ophthalmology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan
| | - Yoshikazu Shimomura
- Department of Ophthalmology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan
| |
Collapse
|
21
|
Mitra M, Singer D, Mano Y, Hritz J, Nam G, Gorelick RJ, Byeon IJL, Gronenborn AM, Iwatani Y, Levin JG. Sequence and structural determinants of human APOBEC3H deaminase and anti-HIV-1 activities. Retrovirology 2015; 12:3. [PMID: 25614027 PMCID: PMC4323217 DOI: 10.1186/s12977-014-0130-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/17/2014] [Indexed: 12/17/2022] Open
Abstract
Background Human APOBEC3H (A3H) belongs to the A3 family of host restriction factors, which are cytidine deaminases that catalyze conversion of deoxycytidine to deoxyuridine in single-stranded DNA. A3 proteins contain either one (A3A, A3C, A3H) or two (A3B, A3D, A3F, A3G) Zn-binding domains. A3H has seven haplotypes (I-VII) that exhibit diverse biological phenotypes and geographical distribution in the human population. Its single Zn-coordinating deaminase domain belongs to a phylogenetic cluster (Z3) that is different from the Z1- and Z2-type domains in other human A3 proteins. A3H HapII, unlike A3A or A3C, has potent activity against HIV-1. Here, we sought to identify the determinants of A3H HapII deaminase and antiviral activities, using site-directed sequence- and structure-guided mutagenesis together with cell-based, biochemical, and HIV-1 infectivity assays. Results We have constructed a homology model of A3H HapII, which is similar to the known structures of other A3 proteins. The model revealed a large cluster of basic residues (not present in A3A or A3C) that are likely to be involved in nucleic acid binding. Indeed, RNase A pretreatment of 293T cell lysates expressing A3H was shown to be required for detection of deaminase activity, indicating that interaction with cellular RNAs inhibits A3H catalytic function. Similar observations have been made with A3G. Analysis of A3H deaminase substrate specificity demonstrated that a 5′ T adjacent to the catalytic C is preferred. Changing the putative nucleic acid binding residues identified by the model resulted in reduction or abrogation of enzymatic activity, while substituting Z3-specific residues in A3H to the corresponding residues in other A3 proteins did not affect enzyme function. As shown for A3G and A3F, some A3H mutants were defective in catalysis, but retained antiviral activity against HIV-1vif (−) virions. Furthermore, endogenous reverse transcription assays demonstrated that the E56A catalytic mutant inhibits HIV-1 DNA synthesis, although not as efficiently as wild type. Conclusions The molecular and biological activities of A3H are more similar to those of the double-domain A3 proteins than to those of A3A or A3C. Importantly, A3H appears to use both deaminase-dependent and -independent mechanisms to target reverse transcription and restrict HIV-1 replication. Electronic supplementary material The online version of this article (doi:10.1186/s12977-014-0130-8) contains supplementary material, which is available to authorized users.
Collapse
|
22
|
Nagai N, Yoshioka C, Mano Y, Ito Y, Okamoto N, Shimomura Y. Effect of Eye Drops Containing Disulfiram and Low-Substituted Methylcellulose in Reducing Intraocular Pressure in Rabbit Models. Curr Eye Res 2014; 40:990-1000. [PMID: 25330366 DOI: 10.3109/02713683.2014.971187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE We attempted to develop anti-glaucoma eye drops using 0.5% disulfiram (DSF), 5% 2-hydroxypropyl-β-cyclodextrin, 0.1% hydroxypropylmethylcellulose, and 2% methylcellulose (MC) (DSF eye drops with MC), and tested the ability of a DSF eye drops with MC to reduce intraocular pressure (IOP) in rabbit models. METHODS Elevated IOP was induced by the rapid infusion of 5% glucose solution (15 ml/kg of body weight) through the marginal ear vein or by keeping rabbits in the dark for 5 h. IOP and the nitric oxide (NO) level in the aqueous humor were measured with an electronic tonometer and by a microdialysis method, respectively. ΔIOP and ΔNO values were analyzed as the differences in IOP and NO in rabbits instilled with saline or eye drops, respectively. RESULTS Increased IOP in rabbit models was reduced by the instillation of DSF eye drops with or without MC, and a close relationship was observed between IOP and NO levels in rabbit receiving a rapid infusion of isotonic glucose. We present kinetic parameters [secondary AUC (prolonged drug effect) and secondary MRT (prolonged effective time)] analyzed as the area under the curve (AUC) of ΔIOP or ΔNO versus time using rabbits instilled with eye drops 10, 50, or 90 min prior to the infusion of the isotonic glucose solution. The elevations in IOP and NO level were reduced by the instillation of DSF eye drops with or without MC; the addition of MC increased the secondary AUC and MRT of DSF eye drops. CONCLUSIONS The present study demonstrates that 0.5% DSF eye drops suppress increased IOP in rabbit models, probably by inhibiting the elevation in NO levels. In addition, we propose a kinetic analysis method to predict drug effects and effective time. These findings suggest that a low-substituted MC-based drug delivery system promotes drug effectiveness and effective time.
Collapse
Affiliation(s)
- Noriaki Nagai
- a Faculty of Pharmacy , Kinki University , Higashi-Osaka, Osaka , Japan and
| | - Chiaki Yoshioka
- a Faculty of Pharmacy , Kinki University , Higashi-Osaka, Osaka , Japan and
| | - Yu Mano
- a Faculty of Pharmacy , Kinki University , Higashi-Osaka, Osaka , Japan and
| | - Yoshimasa Ito
- a Faculty of Pharmacy , Kinki University , Higashi-Osaka, Osaka , Japan and
| | - Norio Okamoto
- b Department of Ophthalmology , Kinki University Faculty of Medicine , Osaka-Sayama, Osaka , Japan
| | - Yoshikazu Shimomura
- b Department of Ophthalmology , Kinki University Faculty of Medicine , Osaka-Sayama, Osaka , Japan
| |
Collapse
|
23
|
Sumigama S, Sugiyama C, Kotani T, Hayakawa H, Inoue A, Mano Y, Tsuda H, Furuhashi M, Yamamuro O, Kinoshita Y, Okamoto T, Nakamura H, Matsusawa K, Sakakibara K, Oguchi H, Kawai M, Shimoyama Y, Tamakoshi K, Kikkawa F. Uterine sutures at prior caesarean section and placenta accreta in subsequent pregnancy: a case-control study. BJOG 2014; 121:866-74; discussion 875. [DOI: 10.1111/1471-0528.12717] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2014] [Indexed: 11/27/2022]
Affiliation(s)
- S Sumigama
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - C Sugiyama
- Department of Obstetrics and Gynaecology; Gifu Prefectural Tajimi Hospital; Gifu Japan
| | - T Kotani
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - H Hayakawa
- Department of Obstetrics and Gynaecology; Kasugai Municipal Hospital; Aichi Japan
| | - A Inoue
- Department of Obstetrics and Gynaecology; Hekinan Municipal Hospital; Aichi Japan
| | - Y Mano
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - H Tsuda
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - M Furuhashi
- Department of Obstetrics and Gynaecology; Japanese Red Cross Nagoya Daiichi Hospital; Aichi Japan
| | - O Yamamuro
- Department of Obstetrics and Gynaecology; Nagoya Daini Red Cross Hospital; Aichi Japan
| | - Y Kinoshita
- Department of Obstetrics and Gynaecology; Ogaki Municipal Hospital; Gifu Japan
| | - T Okamoto
- Department of Obstetrics and Gynaecology; Chukyo Hospital; Aichi Japan
| | - H Nakamura
- Department of Obstetrics and Gynaecology; Gifu Prefectural Tajimi Hospital; Gifu Japan
| | - K Matsusawa
- Department of Obstetrics and Gynaecology; Anjo Kosei Hospital; Aichi Japan
| | - K Sakakibara
- Department of Obstetrics and Gynaecology; Okazaki City Hospital; Aichi Japan
| | - H Oguchi
- Department of Obstetrics and Gynaecology; Toyota Memorial Hospital; Aichi Japan
| | - M Kawai
- Department of Obstetrics and Gynaecology; Toyohashi Municipal Hospital; Aichi Japan
| | - Y Shimoyama
- Department of Pathology and Laboratory Medicine; Nagoya University Hospital; Aichi Japan
| | - K Tamakoshi
- Department of Nursing; Nagoya University School of Health Sciences; Aichi Japan
| | - F Kikkawa
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| |
Collapse
|
24
|
Yoshizumi T, Shirabe K, Ikegami T, Yamashita N, Mano Y, Yoshiya S, Matono R, Harimoto N, Uchiyama H, Toshima T, Maehara Y. Decreased immunoglobulin G levels after living-donor liver transplantation is a risk factor for bacterial infection and sepsis. Transpl Infect Dis 2014; 16:225-31. [DOI: 10.1111/tid.12188] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 07/04/2013] [Accepted: 08/03/2013] [Indexed: 11/26/2022]
Affiliation(s)
- T. Yoshizumi
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - K. Shirabe
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - T. Ikegami
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - N. Yamashita
- Clinical Research Center; Shikoku Cancer Center; Matsuyama Japan
| | - Y. Mano
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - S. Yoshiya
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - R. Matono
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - N. Harimoto
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - H. Uchiyama
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - T. Toshima
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Y. Maehara
- Department of Surgery and Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| |
Collapse
|
25
|
Mano Y, Omori F. Flooding tolerance in interspecific introgression lines containing chromosome segments from teosinte (Zea nicaraguensis) in maize (Zea mays subsp. mays). Ann Bot 2013; 112:1125-39. [PMID: 23877074 PMCID: PMC3783227 DOI: 10.1093/aob/mct160] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 05/31/2013] [Indexed: 05/04/2023]
Abstract
BACKGROUND AND AIMS Nicaraguan teosinte (Zea nicaraguensis), a species found in frequently flooded areas, provides useful germplasm for breeding flooding-tolerant maize (Z. mays subsp. mays). The objective of this study was to select flooding-tolerant lines using a library of introgression lines (ILs), each containing a chromosome segment from Z. nicaraguensis in the maize inbred line Mi29. METHODS To produce the ILs, a single F1 plant derived from a cross between maize Mi29 and Z. nicaraguensis was backcrossed to Mi29 three times, self-pollinated four times and genotyped using simple sequence repeat markers. Flooding tolerance was evaluated at the seedling stage under reducing soil conditions. KEY RESULTS By backcrossing and selfing, a series of 45 ILs were developed covering nearly the entire maize genome. Five flooding-tolerant lines were identified from among the ILs by evaluating leaf injury. Among these, line IL#18, containing a Z. nicaraguensis chromosome segment on the long arm of chromosome 4, showed the greatest tolerance to flooding, suggesting the presence of a major quantitative trait locus (QTL) in that region. The presence of the QTL was verified by examining flooding tolerance in a population segregating for the candidate region of chromosome 4. There was no significant relationship between the capacity to form constitutive aerenchyma and flooding tolerance in the ILs, indicating the presence of other factors related to flooding tolerance under reducing soil conditions. CONCLUSIONS A flooding-tolerant genotype, IL#18, was identified; this genotype should be useful for maize breeding. In addition, because the chromosome segments of Z. nicaraguensis in the ILs cover nearly the entire genome and Z. nicaraguensis possesses several unique traits related to flooding tolerance, the ILs should be valuable material for additional QTL detection and the development of flooding-tolerant maize lines.
Collapse
Affiliation(s)
- Y. Mano
- Forage Crop Research Division, NARO Institute of Livestock and Grassland Science, 768 Senbonmatsu, Nasushiobara, Tochigi 329-2793, Japan
| | | |
Collapse
|
26
|
Kotani T, Sumigama S, Tsuda H, Mano Y, Yamamoto E, Iwase A, Shimoyama Y, Nagasaka T, Hayakawa H, Yamamoto T, Ino K, Kikkawa F. A case report of placental mesenchymal dysplasia with an increased VEGF-D expression. Placenta 2012; 33:888-91. [DOI: 10.1016/j.placenta.2012.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 07/12/2012] [Accepted: 07/22/2012] [Indexed: 10/28/2022]
|
27
|
Unno N, Tanaka H, Suzuki M, Yamamoto N, Mano Y, Sano M, Saito T, Konno H. Influence of age and gender on human lymphatic pumping pressure in the leg. Lymphology 2011; 44:113-120. [PMID: 22165581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Lymph transportation is controlled, at least in part, by the intrinsic pumping of lymphatic vessels. The objectives of this study were to evaluate the influences of age and gender on leg lymphatic pumping pressure. A total of 399 subjects between the ages of 20 and 91 years (199 males and 200 females) volunteered to participate in this study. Lymphatic pumping was measured in 798 legs of the 399 participants. Indocyanine green (ICG) fluorescence lymphography was performed, and the real-time fluorescence images of lymph propulsion were obtained in a sitting position using an infrared-light camera system. A custom-made transparent sphygmomanometer cuff was wrapped around the lower leg and connected to a standard mercury sphygmomanometer. The cuff was inflated, and then gradually deflated until the fluorescent dye exceeded the upper border of the cuff. Lymph pumping pressure was defined as the value of the cuff pressure when the dye exceeded the upper border of the cuff. There was a significant correlation between the leg lymphatic pumping and age: r = -0.34 (p < 0.0001). Comparison of lymphatic pumping between males and females indicated that the age-related decrease in lymphatic pumping pressure was more marked in females of postmenopausal age.
Collapse
Affiliation(s)
- N Unno
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Motomura T, Taketomi A, Fukuhara T, Mano Y, Takeishi K, Toshima T, Harada N, Uchiyama H, Yoshizumi T, Soejima Y, Shirabe K, Matsuura Y, Maehara Y. The impact of IL28B genetic variants on recurrent hepatitis C in liver transplantation: significant lessons from a dual graft case. Am J Transplant 2011; 11:1325-9. [PMID: 21645259 DOI: 10.1111/j.1600-6143.2011.03537.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
IL28B genetic polymorphism is related to interferon-sensitivity in chronic hepatitis C, but the significance of grafts carrying different genotypes from recipients is still unclear in liver transplantation. A 51-year-old Japanese male carrying a minor genotype underwent dual liver transplantation for liver cirrhosis due to hepatitis C virus (HCV). The left lobe graft carried a major genotype, and the right a minor genotype. He achieved virological response during the course of pegylated-interferon and ribavirin therapy against recurrent hepatitis C for 2 years, but HCV relapsed immediately at the end of the therapy. Two years after antiviral therapy, liver biopsy was performed from each graft. The specimens showed A1F0 in the left lobe graft and A2F2 in the right. Moreover, quantitative polymerase chain reaction was performed using RNA extracted from each specimen to see there was no HCV RNA in the left lobe whereas there was in the right. This case provides clear evidence that IL28B genetic variants determine interferon sensitivity in recurrent hepatitis C following liver transplantation, which could result in new strategies for donor selection or for posttransplant antiviral therapy to HCV positive recipients.
Collapse
Affiliation(s)
- T Motomura
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Taketomi A, Muto J, Motomura T, Mano Y, Takeishi K, Toshima T, Ijichi H, Harada N, Uchiyama H, Yoshizumi T, Shirabe K, Maehara Y. Long-term outcomes of the patients with hepatocellular carcinoma after living donor liver transplantation using left lobe graft. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
30
|
Shirabe K, Aishima S, Taketomi A, Soejima Y, Uchiyama H, Kayashima H, Ninomiya M, Mano Y, Maehara Y. Prognostic importance of the gross classification of hepatocellular carcinoma in living donor-related liver transplantation. Br J Surg 2010; 98:261-7. [DOI: 10.1002/bjs.7311] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Abstract
Background
The gross classification of hepatocellular carcinoma (HCC) has been reported to be a significant prognostic factor for patients with HCC undergoing partial hepatectomy. The present study investigated whether the gross classification of HCC is also a prognostic factor in living donor-related liver transplantation (LDLT).
Methods
Some 119 patients undergoing LDLT for HCC were identified retrospectively from a prospective institutional database containing information on all LDLTs carried out between 1996 and 2009. Patients were divided into three groups according to the gross classification of the largest tumour in the explanted liver: type 1 HCC, single nodular type (81 patients); type 2, single nodular type with extranodular growth (21); and type 3, contiguous multinodular type (17). Clinicopathological factors and recurrence-free survival rates were compared.
Results
Recurrence-free survival rates for the whole group were 87·7 per cent at 1 year, 83·5 per cent at 3 years and 81·0 per cent at 5 years after LDLT. Type 3 HCC was associated with large tumour size, poor histological grade, a high incidence of microvascular invasion and multiple tumours. Independent predictors of poor recurrence-free survival were preoperative serum level of des-γ-carboxy prothrombin exceeding 300 mAU/ml, microvascular invasion and type 3 HCC.
Conclusion
The gross classification of HCC was an independent predictor for recurrence of HCC in patients undergoing LDLT.
Collapse
Affiliation(s)
- K Shirabe
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Aishima
- Department of Anatomical Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Taketomi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Soejima
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Uchiyama
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Kayashima
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Ninomiya
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Anatomical Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| |
Collapse
|
31
|
Kotani T, Sumigama S, Hayakawa H, Mano Y, Tsuda H, Sugiyama C, Kawachi F, Hironaka M, Kato T, Kaneko K, Hayakawa M, Kikkawa F. Elevated levels of aldosterone in the amniotic fluid in two cases of congenital mesoblastic nephroma. Ultrasound Obstet Gynecol 2010; 36:256-258. [PMID: 20455206 DOI: 10.1002/uog.7637] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
|
32
|
|
33
|
Tsukiura T, Mano Y, Sekiguchi A, Yomogida Y, Hoshi K, Kambara T, Takeuchi H, Sugiura M, Kawashima R. Roles of the anterior temporal regions in the successful encoding of memory for person identity information. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70479-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
34
|
Abstract
INTRODUCTION Skin punctures at alternative sites can reduce the pain associated with self-monitoring of blood glucose (SMBG). However, delays in detection of blood glucose at alternative sites during rapid systemic blood glucose change have been reported. Accordingly, we developed a novel method of finger pricking and tested it to see if it would both reduce or eliminate pain and accurately reflect systemic glucose levels, even during rapid changes. METHODS Each of 35 healthy volunteers (10 females and 25 males; mean age 36.6 years, range 18-82 years) received 5 serial punctures from a lancet device on randomly selected fingers. The puncture target was the dorsal side of the finger between the nail and the distal finger joint. We used a lancet device designed for accurate punctures of 0.2, 0.3, 0.4, 0.5 and 0.6 mm depths. Immediately afterward, as a control, a conventional fingertip puncture was done on the front of a 6th finger. After each puncture, subjects were asked whether or not they felt pain. RESULTS Following punctures at depths of 0.2 mm and 0.3 mm, respectively, 31 of 35 subjects (89%) and 33 of 35 subjects (94%) felt no pain. Following conventional punctures, all 35 subjects (100%) felt pain. Blood sample volumes> or =2microL were obtained in all cases except for two punctures at 0.2 mm depth. Blood glucose levels did not differ with differing puncture sites, (conventional fingertip sites vs. alternative sites used in this study). CONCLUSIONS Our findings demonstrate that 0.2 and 0.3 mm punctures at our alternative finger site - the dorsal side of the finger between the nail and the distal finger joint - can provide blood samples sufficient for SMBG, substantially redu-ces the proportion of subjects who experience pain, and accurately reflects systemic glucose levels.
Collapse
Affiliation(s)
- T Nakayama
- Department of Health Education, Graduate School of Health Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | | | | | | | | |
Collapse
|
35
|
Togawa S, Maruyama M, Yamami N, Nakayama H, Shibayama M, Kawashima M, Shimada K, Mano Y. Dissociation of neurological deficits in spinal decompression illness. Undersea Hyperb Med 2006; 33:265-70. [PMID: 17004413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Functional differentiation is found in the spinal cord. A unique set of neurological deficits follows a multi-focal injury. Clinically, sensory and motor disturbance present independently, often resulting in sensory and motor deficit dissociation. This study examined 103 spinal decompression illness (DCI) cases. The neurological deficit dissociation was classified as follows: 1) Cases with sensory impairment only, or motor dysfunction alone, were tagged as having "dissociation" (44 cases); when a case was with both sensory and motor dysfunction, the spinal level of the sensory impairment was determined and was matched with the spinal segments responsible for the motor dysfunction; 2) If the two spinal areas did not match (i.e. with no regional overlap), they were tagged as having "dissociation" for each motor dysfunction (32 cases). In total, dissociation was present in 76 out of 103 cases. We concluded that clinical neurological deficit dissociation is frequently observed in spinal DCI.
Collapse
Affiliation(s)
- S Togawa
- Department of Physiology, Faculty of Medicine, University of Miyazaki, Japan
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Togawa S, Yamami N, Nakayama H, Mano Y, Ikegami K, Ozeki S. The validity of the mangled extremity severity score in the assessment of upper limb injuries. ACTA ACUST UNITED AC 2005; 87:1516-9. [PMID: 16260670 DOI: 10.1302/0301-620x.87b11.16512] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Mangled Extremity Severity Score (MESS) may be used to decide whether to perform amputation in patients with injuries involving a limb. A score of 7 points or higher indicates the need for amputation. We have treated three patients with a MESS of 7 points or higher, in two of which the injured limb was salvaged. This scoring system was originally devised to assess injuries to the lower limb. However, a MESS of 7 points as a justification for amputation does not appear appropriate when assessing injuries to the major vessels in the upper limb.
Collapse
Affiliation(s)
- S Togawa
- Department of Hyperbaric Medicine, Tokyo Medical and Dental University Hospital, Faculty of Medicine, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-5819, Japan.
| | | | | | | | | | | |
Collapse
|
37
|
Chuma T, Faruque Reza M, Ikoma K, Mano Y. Motor learning of hands with auditory cue in patients with Parkinson’s disease. J Neural Transm (Vienna) 2005; 113:175-85. [PMID: 15959849 DOI: 10.1007/s00702-005-0314-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2004] [Accepted: 03/30/2005] [Indexed: 10/25/2022]
Abstract
In the present research, changes in motor cortex function were observed in relation to repetitive, voluntary thumb movement (training) in patients with Parkinson's disease (PD) and normal control subjects. Changes in the direction of thumb movement due to motor evoked potential (MEP) by transcranial magnetic stimulation (TMS), after motor training with and without rhythmic sound, were measured using a strain gauge for 12 patients with PD and 9 normal control subjects. PD patients who experienced the freezing phenomena showed poor change in direction of TMS-induced movement after self-paced movement; however, marked change in direction of TMS-induced movement was observed after training with auditory cue. PD patients who had not experienced the freezing phenomena showed positive effects with the auditory cue, producing similar results as the normal control subjects. Two routes for voluntary movement are available in the nervous system. The decreased function of basal ganglia due to PD impaired the route from the basal ganglia to the supplementary motor cortex. These data suggest that the route from sensory input to cerebellum to premotor cortex could compensate for the decreased function of the route via the basal ganglia to the premotor cortex. Once change in the motor cortex occurred, such change persisted even after the interruption of training. These phenomena suggest that motor memory can be stored in the motor cortex.
Collapse
Affiliation(s)
- T Chuma
- Department of Rehabilitation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | | | | | | |
Collapse
|
38
|
Kohshi K, Wong RM, Abe H, Katoh T, Okudera T, Mano Y. Neurological manifestations in Japanese Ama divers. Undersea Hyperb Med 2005; 32:11-20. [PMID: 15796310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Repetitive breath-hold (BH) diving can lead to accumulation of nitrogen (N2) in blood and tissues, which may give rise to decompression illness (DCI). An unusual condition is "Taravana", the diving syndrome reported by Cross in the 1960s. That report generated wide discussion as to whether BH diving can cause DCI. Paulev was the first person to suggest the link between DCI and BH diving. He, a submarine medical officer developed symptoms of DCI after a series of BH dives, having proceeded the dives by spending time in a hyperbaric chamber at 20 meters for 8 minutes. Recently four professional Japanese BH divers (Ama) with histories of diving accidents were reported. Magnetic resonance imaging of these divers detected cerebral infarcts localized in the watershed areas of the brain. A survey conducted on their island revealed that many Ama divers had experienced stroke-like events. A clinical feature of DCI in BH diving is that the damage is limited to the brain. Although the mechanisms of brain damage in BH diving are unclear, N2 bubbles passing through the lungs or the heart so as to become arterialized are most likely to be the etiological factor.
Collapse
Affiliation(s)
- K Kohshi
- Department of Neurosurgery, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | | | | | | | | | | |
Collapse
|
39
|
Komatsuda T, Maxim P, Senthil N, Mano Y. High-density AFLP map of nonbrittle rachis 1 (btr1) and 2 (btr2) genes in barley (Hordeum vulgare L.). Theor Appl Genet 2004; 109:986-95. [PMID: 15490100 DOI: 10.1007/s00122-004-1710-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2004] [Accepted: 04/15/2004] [Indexed: 05/18/2023]
Abstract
Wild relatives of barley disperse their seeds at maturity by means of their brittle rachis. In cultivated barley, brittleness of the rachis was lost during domestication. Nonbrittle rachis of occidental barley lines is controlled by a single gene (btr1) on chromosome 3H. However, nonbrittle rachis of oriental barley lines is controlled by a major gene (btr2) on chromosome 3H and two quantitative trait loci on chromosomes 5HL and 7H. This result suggests multiple mutations of the genes involved in the formation of brittle rachis in oriental lines. The btr1 and btr2 loci did not recombine in the mapping population analyzed. This result agrees with the theory of tight linkage between the two loci. A high-density amplified fragment-length polymorphism (AFLP) map of the btr1/btr2 region was constructed, providing an average density of 0.08 cM/locus. A phylogenetic tree based on the AFLPs showed clear separation of occidental and oriental barley lines. Thus, barley consists of at least two lineages as far as revealed by molecular markers linked to nonbrittle rachis genes.
Collapse
Affiliation(s)
- T Komatsuda
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602, Japan.
| | | | | | | |
Collapse
|
40
|
Turuspekov Y, Mano Y, Honda I, Kawada N, Watanabe Y, Komatsuda T. Identification and mapping of cleistogamy genes in barley. Theor Appl Genet 2004; 109:480-487. [PMID: 15138690 DOI: 10.1007/s00122-004-1673-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2003] [Accepted: 03/19/2004] [Indexed: 05/24/2023]
Abstract
Cleistogamy is a closed type of flowering with ensured self-pollination and an important trait to study evolutionary development in flower organs, reproduction systems, gene flow, and disease control. Still, very limited information is available about the genetic control and regulatory mechanism of this trait in barley. In this work, from the eight crosses between cleistogamous and chasmogamous accessions, five crosses generated chasmogamous F1 plants and their F2 plants segregated as 3 chasmogamous:1 cleistogamous, whereas three crosses generated cleistogamous F1 plants, and their F2 plants segregated as 1 chasmogamous:3 cleistogamous. Although a single gene was responsible for the control of cleistogamy in these two groups of crosses, the direction of dominance was opposite, suggesting two genes, cly1 and Cly2, for the genetic control of cleistogamy in barley. Epistatic type of gene interaction between the two loci was detected. In the analysis of 99 recombinant inbred lines of 'Azumamugi' x 'Kanto Nakate Gold' and doubled haploid lines of 'Harrington' x 'Mikamo Golden', where in both crosses F1 was chasmogamous, the cly1 locus has been mapped on chromosome 2HL. Using the analysis of the F2 population of 'Misato Golden' and 'Satsuki Nijo' where F1 was cleistogamous, the Cly2 locus was mapped in the same region of chromosome 2HL. Because the cly1 and Cly2 loci were mapped in the same region in these three different mapping populations, it was concluded that the expression of cleistogamy is under the control of two tightly linked genes or different alleles of the same gene.
Collapse
Affiliation(s)
- Y Turuspekov
- National Institute of Crop Science (NICS), Tsukuba, Japan
| | | | | | | | | | | |
Collapse
|
41
|
Onodera M, Horiuchi Y, Nakahama K, Muneta T, Mano Y, Morita I. Induction of cyclooxygenase-1 in cultured synovial cells isolated from rheumatoid arthritis patients. Inflamm Res 2004; 53:217-22. [PMID: 15167967 DOI: 10.1007/s00011-004-1260-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2003] [Accepted: 12/05/2003] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE AND DESIGN The aim of this study was to confirm the involvement of cyclooxygenase (COX)-1 in rheumatoid arthritis (RA). MATERIALS AND SUBJECTS Synovial cells isolated from arthritic patients were cultured primarily and consecutively for 8 passages. TREATMENT The cultured synovial cells were incubated with 10 ng/ml of interleukin-1alpha (IL-1alpha) for 6 h. METHODS The effects of either COX-1 or COX-2 selective inhibitor on prostaglandin E2 (PGE2) production was estimated by enzyme-linked immunosorbent assay (ELISA) and the expression of COX-1 and COX-2 were determined by Western blotting and immunocytochemistry. RESULTS IL-1alpha-induced PGE2 production in synovial cells isolated from RA in primary culture was inhibited by mofezolac, a selective inhibitor of COX-1, as well as NS-398, a specific inhibitor of COX-2. The similar inhibitory patterns were obtained in the RA-derived synovial cells within 3 passages. However, COX activity in the RA-derived synovial cells after 5 passages was inhibited by NS-398, but not by mofezolac. In contrast, COX activity in primary and consecutively cultured synovial cells isolated from osteoarthritis (OA) or normal arthritis was inhibited by NS-398, but not by mofezolac. Western blot and immunocytochemical analyses of COX-1 and COX-2 in the synovial cells isolated from RA patients within 3 passages showed an induction in both COX-1 and COX-2 expression by IL-1alpha. The induction of both COX-1 and COX-2 was inhibited by dexamethasone. CONCLUSIONS These experiments demonstrate COX-1 induction in synovial cells isolated from RA patients, suggesting that COX-1 is involved in the progression of RA.
Collapse
Affiliation(s)
- M Onodera
- Department of Cellular Physiological Chemistry, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | | | | | | | | | | |
Collapse
|
42
|
Togawa S, Yamami N, Nakayama H, Shibayama M, Mano Y. Evaluation of HBO2 therapy in pneumatosis cystoides intestinalis. Undersea Hyperb Med 2004; 31:387-393. [PMID: 15686270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Pneumatosis cystoides intestinalis (PCI) is a disease characterized by retention of gas in the intestinal wall. Retention of gas can be caused by three mechanisms; gas entry through the intestinal mucosa, gas dissection from the pulmonary alveoli and bronchi, and gas generation in the mucous membrane. Since gas in cysts is composed almost entirely of nitrogen, hyperbaric oxygen therapy (HBO2) is effective for treating PCI due to the oxygen windows effect. However, PCI, caused by a mechanism involving pulmonary alveoli or branches, can become aggravated by HBO2. Therefore, we propose modifying HBO2 protocols for cases that do not require an invasive treatment. This study describes favorable results obtained in 2 PCI cases after HBO2 therapy according to our protocol.
Collapse
Affiliation(s)
- S Togawa
- Department of Hyperbaric Therapy, Tokyo Medical and Dental University Hospital, Faculty of Medicine, Tokyo, Japan
| | | | | | | | | |
Collapse
|
43
|
Abstract
OBJECTIVES The aim of this study is to clear the status of recreational scuba divers in Japan for promoting safety in recreational diving. METHODS A five year (from 1996 to 2001) questionnaire survey was performed of Japanese divers at the Osezaki area in Japan. The subjects of this survey included diving instructors as well as recreational divers. Based on the obtained data, the study investigated the theory predicted incidence of decompression sickness (DCS) among Japanese recreational divers. RESULTS The average (SD) of the maximum depth for diving was 37.4 (13.1) metres, which was deeper than the recommended depth of recreational diving. The incident rate of nitrogen narcosis (12%) was the most frequent, followed by barotraumas of the ear (11%) and barotraumas of the paranasal sinus (5.6%). The rate of DCS was 1.9 % (60 divers) during investigated period, and that DCS occurred once per 19 011 dives in calculation. CONCLUSIONS This investigation showed that the status of leisure diving in Japan is still serious, because DCS would be expected to occur once a weekend in Japan. It is speculated that many divers may develop DCS while moving through high altitudes after diving, particularly at the Osezaki diving spot in Japan. Based on the results of this study, it is emphasised that every Japanese leisure diver should take an increasing interest in the safety of diving activity.
Collapse
|
44
|
Abstract
Plasticity within the human central motor system occurs and has been studied with transcranial magnetic stimulation in patients with amputations, spinal cord injuries, and ischemic nerve block. These studies have identified a pattern of motor system reorganization that results in enlarged muscle representation areas and large motor evoked potentials (MEPs) for muscles immediately proximal to the lesion. Some of these changes are apparent minutes after ischemic nerve block, weeks after spinal cord injury, and as early as six months after amputation.These studies motivated us to study the cortical motor reorganization after finger movement training in normals and after anastomosis of intercostal nerves to the musculocutaneous nerve in young patients with cervical root avulsions due to a traumatic motorcycle injury.
Collapse
Affiliation(s)
- Y Mano
- Department of Rehabilitation Medicine, Hokkaido University, Graduate School of Medicine, N-15, W-7, 060-8638, Sapporo, Japan
| | | | | |
Collapse
|
45
|
Abstract
BACKGROUND/AIM Pneumatic caisson engineering has been developed for large civil engineering constructions. Because of complaints of blurred vision by personnel working in pneumatic caissons, the development of myopia was suspected. The aim of this study was to determine the cause of the blurred vision and the mechanism underlying the changes. METHODS 12 caisson workers underwent a complete ophthalmological examination after completing up to 11 weeks of work (4 days/week) in a pneumatic caisson. Six months later, nine of the workers were examined again. RESULTS Nine subjects were myopic at the initial examination, and seven of these were considered to have developed the myopia after starting to work in the pneumatic caisson. Six months after completion of the work, the mean refractive change was significantly towards hyperopia. CONCLUSIONS The blurred vision in pneumatic caisson workers was in all likelihood due to the development of myopia. The refractive shift towards hyperopia after completion of work in the pneumatic caisson supports this and demonstrates that the changes were temporary. The myopia is similar to the myopia seen in patients treated by hyperbaric oxygen. Careful monitoring of the refraction of caisson workers should be performed for industrial health control.
Collapse
Affiliation(s)
- A Onoo
- Department of Ophthalmology and Visual Science, School of Medicine, Tokyo Medical and Dental University, Graduate school, Tokyo, Japan
| | | | | | | |
Collapse
|
46
|
Mano Y, Komatsuda T. Identification of QTLs controlling tissue-culture traits in barley ( Hordeum vulgare L.). Theor Appl Genet 2002; 105:708-715. [PMID: 12582484 DOI: 10.1007/s00122-002-0992-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2001] [Accepted: 01/04/2002] [Indexed: 05/24/2023]
Abstract
Quantitative trait loci (QTLs) controlling callus growth (CG), subsequent shoot differentiation ratio (SD) and green shoot ratio (GS) in immature embryo culture were identified in barley. A base map was developed from 99 recombinant inbred lines (RILs) of 'Azumamugi' x 'Kanto Nakate Gold'. The tissue-culture traits were evaluated at the F(7) and F(10) generations of the RILs. The RILs showed wide and continuous variations in each of the three tissue-culture traits. Three QTLs for CG, three QTLs for SD and two QTLs for GS were detected by using composite interval mapping. A QTL for SD on chromosome 3H had a large effect, and 'Kanto Nakate Gold', which has a high differentiation ability, contributed to this QTL. The location of this QTL is identical to, or very close to, the uzu locus. We discuss the relationships between tissue-culture loci in 'Azumamugi' x 'Kanto Nakate Gold' and those in other mapping populations.
Collapse
Affiliation(s)
- Y. Mano
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan,
| | | |
Collapse
|
47
|
Komatsuda T, Mano Y. Molecular mapping of the intermedium spike-c ( int-c) and non-brittle rachis 1 ( btr1) loci in barley ( Hordeum vulgare L.). Theor Appl Genet 2002; 105:85-90. [PMID: 12582565 DOI: 10.1007/s00122-001-0858-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2001] [Accepted: 11/09/2001] [Indexed: 05/21/2023]
Abstract
Lateral spikelet fertility and a non-brittle rachis are key characters in studying the evolution of barley. The fertility of lateral spikelets is controlled predominantly by the alleles at the vrs1 locus on chromosome 2HL and is modified by the alleles at the int-c locus on chromosome 4HS. The non-brittle rachis is controlled by alleles at two tightly linked loci, btr1 and btr2, on chromosome 3HS. This paper presents the integration of the int-c and btr1 loci in molecular linkage maps of barley. The int-c locus was mapped to the end of chromosome 4HS, 8.2 cM distal from the MWG2033 locus. The analysis was followed by a composite interval mapping of quantitative trait loci, which verified the position of the int-c locus. Linkage analysis using recombinant inbred lines showed that the btr1 locus is flanked between two AFLP loci, e14m27.4.1 and e15m19.7, with map distances of 3.1 cM and 4.2 cM, respectively. The molecular markers will expedite further high-density mapping of the int-c and btr1 loci.
Collapse
Affiliation(s)
- T. Komatsuda
- National Institute of Agrobiological Sciences, Kannondai, Tsukuba 305-8602, Japan,
| | | |
Collapse
|
48
|
Nakamura H, Tsuchida T, Mano Y. The assessment of posture control in the elderly using the displacement of the center of pressure after forward platform translation. J Electromyogr Kinesiol 2001; 11:395-403. [PMID: 11738952 DOI: 10.1016/s1050-6411(01)00016-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
We investigated the change of the center of pressure (COP) after forward platform translations in healthy subjects. These studies were performed on 26 normal young subjects and 20 healthy elderly subjects, who had a normal neurologic examination. Subjects stood barefoot on a three dimensional force plate on the platform, with feet parallel. The duration of the forward platform translations was 0.15s, and the displacements were 3.75, 7.5, 10, 15, 20, and 30 mm. Six trials were carried out at random. The COP data were recorded for 35s during standing, and were analyzed for 5s after translation. With the platform translation displacements from 3.75 to 15 mm, displacement of the COP showed a tendency to increase in all subjects. Whereas with the stimuli between 20 and 30 mm, the results were more varied. The elderly group showed significantly (p<0.05) larger sway than the young group. These results indicate that the individual ability of posture control may be assessed by means of measuring the sway of the center of gravity after platform translation. Electromyography was carried out simultaneously, it showed that elderly people contrary to young subjects used proximal biceps femoris and distal foot muscles at an early stage of the platform translation (p<0.05), suggesting lack of ankle stability with aging.
Collapse
Affiliation(s)
- H Nakamura
- Department of Rehabilitation Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | | | | |
Collapse
|
49
|
Kanno M, Chuma T, Mano Y. Monitoring an electroencephalogram for the safe application of therapeutic repetitive transcranial magnetic stimulation. J Neurol Neurosurg Psychiatry 2001; 71:559-60. [PMID: 11561052 PMCID: PMC1763535 DOI: 10.1136/jnnp.71.4.559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
50
|
Yagihashi A, Asanuma K, Nakamura M, Araya J, Mano Y, Torigoe T, Kobayashi D, Watanabe N. Detection of anti-survivin antibody in gastrointestinal cancer patients. Clin Chem 2001; 47:1729-31. [PMID: 11514420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- A Yagihashi
- Department of Clinical Laboratory Medicine, Sapporo Medical University School of Medicine, South-1, West 16, Chuo-ku, Sapporo 060-8543, Japan
| | | | | | | | | | | | | | | |
Collapse
|