FIND

researchers

DISCOVER

relevant articles

PROMOTE

your research

now for free

Ryoichi Hamasuna

Research Profile

Living Beings

Chemicals & Drugs

Disorders

Procedures

Co-author Network

Publications

TOP 3
Ryoichi Hamasuna
Identification of treatment strategies for Mycoplasma genitalium-related urethritis in male patients by culturing and antimicrobial susceptibility testing.
Satoshi Takahashi; Kazushi Tanaka; Shingo Yamamoto; Mitsuru Yasuda; Soichi Arakawa; Ryoichi Hamasuna; Hiroshi Hayami; Kiyohito Ishikawa; Hiroshi Kiyota; Tatsuhiko Kubo; Tetsuro Matsumoto
A randomized clinical trial to evaluate the preventive effect of cranberry juice (UR65) for patients with recurrent urinary tract infection.
Chris L McGowin; David Adegboye; Ryoichi Hamasuna; Jørgen S Jensen; Liang Ma; Miriam M Mancuso; David H Martin
Draft genome sequences of four axenic Mycoplasma genitalium strains isolated from Denmark, Japan, and Australia.

Register for free to view:

Visualized networks:

See your personal network in
sophisticated graphical views

GeoTargeted Searches:

Locate experts around the world
and connect with global collaborators

Research Profiles:

See the research activity
of experts around the globe

Geonetwork of Ryoichi Hamasuna (preview)

Cities where this author has publications
Cities where co-authors of this author have publications

Flash Player Required

All Publications

2013: Ryoichi Hamasuna
Identification of treatment strategies for Mycoplasma genitalium-related urethritis in male patients by culturing and antimicrobial susceptibility testing.
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2013;19(1):1-11.
2013: Satoshi Takahashi; Kazushi Tanaka; Shingo Yamamoto; Mitsuru Yasuda; Soichi Arakawa; Ryoichi Hamasuna; Hiroshi Hayami; Kiyohito Ishikawa; Hiroshi Kiyota; Tatsuhiko Kubo; Tetsuro Matsumoto
A randomized clinical trial to evaluate the preventive effect of cranberry juice (UR65) for patients with recurrent urinary tract infection.
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2013;19(1):112-7.
2012: Chris L McGowin; David Adegboye; Ryoichi Hamasuna; Jørgen S Jensen; Liang Ma; Miriam M Mancuso; David H Martin
Draft genome sequences of four axenic Mycoplasma genitalium strains isolated from Denmark, Japan, and Australia.
Journal of bacteriology 2012;194(21):6010-1.
2012: Tetsuro Matsumoto; Koichi Monden; Tetsuro Muratani; Satoshi Takahashi; Kazushi Tanaka; Soichi Arakawa; Ryoichi Hamasuna; Hiroshi Hayami; Kiyohito Ishikawa; Mitsuru Yasuda; Shingo Yamamoto
Sensitivities of major causative organisms isolated from patients with acute uncomplicated cystitis against various antibacterial agents: results of subanalysis based on the presence of menopause.
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2012;18(4):597-607.
2012: Ryoichi Hamasuna; Satoshi Takahashi; Shinya Uehara; Tetsuro Matsumoto
Should urologists care for the pharyngeal infection of Neisseria gonorrhoeae or Chlamydia trachomatis when we treat male urethritis?
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2012;18(3):410-3.
2012: Takehiko Sho; Naoki Fujimoto; Ryoichi Hamasuna; Yukihiro Mizokami; Tetsuro Muratani; Tetsuro Matsumoto
Mechanism of resistance of a highly carbapenem-resistant Klebsiella oxytoca isolate and comparison of susceptibility to five carbapenems.
International journal of antimicrobial agents 2012;39(3):268-9.
2012: Ryoichi Hamasuna
Editorial Comment from Dr Hamasuna to Prevalence of genital mycoplasmas and ureaplasmas in men younger than 40 years-of-age with acute epididymitis.
International journal of urology : official journal of the Japanese Urological Association 2012;19(3):239.
2012: Liang Ma; Miriam Mancuso; Ryoichi Hamasuna; Jørgen S Jensen; Qiuyao Jia; Chris L McGowin; David H Martin
Variability of trinucleotide tandem repeats in the MgPa operon and its repetitive chromosomal elements in Mycoplasma genitalium.
Journal of medical microbiology 2012;61(Pt 2):191-7.
2012: Hitoshi Yanaihara; Satoshi Takahashi; Shingo Yamamoto; Soichi Arakawa; Ryoichi Hamasuna; Satoru Ishikawa; Tetsuro Matsumoto
Current controversial issues in the decontamination process for urological endoscopes.
International journal of urology : official journal of the Japanese Urological Association 2012;19(1):5-6.
2011: Ryoichi Hamasuna; Hiroshi Hayami; Hiroshi Kiyota; Satoshi Takahashi; Kazunori Tomono; Mitsuru Yasuda; Soichi Arakawa; Tetsuro Matsumoto
Effect of gatifloxacin against Mycoplasma genitalium-related urethritis: an open clinical trial.
Sexually transmitted infections 2011;87(5):389-90.
2011: Mitsuru Yasuda; Soichi Arakawa; Ryoichi Hamasuna; Hiroshi Hayami; Kiyohito Ishikawa; Hiroshi Kiyota; Tetsuro Matsumoto; Koichi Monden; Tetsuro Muratani; Akira Takahashi; Satoshi Takahashi; Shingo Yamamoto
Japanese guideline for clinical research of antimicrobial agents on urogenital infections: the first edition.
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 2011;17(4):579-94.
2011: Ryoichi Hamasuna; Satoru Ishikawa; Satoshi Takahashi; Shingo Yamamoto; Hitoshi Yanaihara; Soichi Arakawa; Tetsuro Matsumoto
Guideline for the prevention of health care-associated infection in urological practice in Japan.
International journal of urology : official journal of the Japanese Urological Association 2011;18(7):495-502.
2011: Tetsuro Matsumoto; Ryoichi Hamasuna; Kiyohito Ishikawa; Satoshi Takahashi; Mitsuru Yasuda; Hiroshi Hayami; Kazushi Tanaka; Hiroshi Kiyota; Tetsuro Muratani; Koichi Monden; Soichi Arakawa; Shingo Yamamoto
Nationwide survey of antibacterial activity against clinical isolates from urinary tract infections in Japan (2008).
International journal of antimicrobial agents 2011;37(3):210-8.
2011: Ryoichi Hamasuna; Shuichi Kawai; Yukiko Ando; Kenji Ito; Motoko Kurashima; Hirohumi Nishimura; Takamasa Yamaguchi; Makoto Yoshimura; Tomoko Kobayashi; Tetsuro Muratani; Tetsuro Matsumoto
[Usefulness of real-time PCR in detecting Chlamydia trachomatis and Neisseria gonorrhoeae in endocervical swabs and first-voided urine specimens].
Kansenshōgaku zasshi. The Journal of the Japanese Association for Infectious Diseases 2011;85(1):1-7.
2010: Liang Ma; Jørgen S Jensen; Miriam Mancuso; Ryoichi Hamasuna; Qiuyao Jia; Chris L McGowin; David H Martin
Genetic variation in the complete MgPa operon and its repetitive chromosomal elements in clinical strains of Mycoplasma genitalium.
PloS one 2010;5(12):e15660.
2009: Ryoichi Hamasuna; Jørgen Skov Jensen; Yukio Osada
Antimicrobial susceptibilities of Mycoplasma genitalium strains examined by broth dilution and quantitative PCR.
Antimicrobial agents and chemotherapy 2009;53(11):4938-9.
2008: Jorgen Jensen; Catriona S Bradshaw; Sepehr N Tabrizi; Christopher K Fairley; Ryoichi Hamasuna
Azithromycin treatment failure in Mycoplasma genitalium-positive patients with nongonococcal urethritis is associated with induced macrolide resistance.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2008;47(12):1546-53.
2008: Kazuhiro Kondo; Kazuo Chijiiwa; Motoaki Nagano; Ryoichi Hamasuna; Atsushi Yamashita; Kousuke Marutsuka; Nobuyasu Takahashi; Yutaka Akiyama
Two-stage operation for hepatocellular carcinoma with synchronous bilateral adrenal gland metastasis.
Journal of hepato-biliary-pancreatic surgery 2008;15(2):232-6.
2007: Ryoichi Hamasuna; Shinji Hoshina; Hirohisa Imai; Jorgen Jensen; Yukio Osada
Usefulness of oral wash specimens for detecting Chlamydia trachomatis from high-risk groups in Japan.
International journal of urology : official journal of the Japanese Urological Association 2007;14(5):473-5.
2007: Ryoichi Hamasuna; Yukio Osada; Jorgen Jensen
Isolation of Mycoplasma genitalium from first-void urine specimens by coculture with Vero cells.
Journal of clinical microbiology 2007;45(3):847-50.
2007: Shuichiro Uchiyama; Hiroshi Itoh; Seiji Naganuma; Koki Nagaike; Tsuyoshi Fukushima; Hiroyuki Tanaka; Ryoichi Hamasuna; Kazuo Chijiiwa; Hiroaki Kataoka
Enhanced expression of hepatocyte growth factor activator inhibitor type 2-related small peptide at the invasive front of colon cancers.
Gut 2007;56(2):215-26.
2005: Ryoichi Hamasuna; Yukio Osada; Jorgen Jensen
Antibiotic susceptibility testing of Mycoplasma genitalium by TaqMan 5' nuclease real-time PCR.
Antimicrobial agents and chemotherapy 2005;49(12):4993-8.
2005: Shiro Miyata; Shunro Uchinokura; Tsuyoshi Fukushima; Ryoichi Hamasuna; Hiroshi Itoh; Yutaka Akiyama; Shinichi Nakano; Shinichiro Wakisaka; Hiroaki Kataoka
Diverse roles of hepatocyte growth factor activator inhibitor type 1 (HAI-1) in the growth of glioblastoma cells in vivo.
Cancer letters 2005;227(1):83-93.
2004: Ryoichi Hamasuna; Hironori Betsunoh; Tetsuya Sueyoshi; Kazumichi Yakushiji; Hiromasa Tsukino; Masafumi Nagano; Toshiyuki Takehara; Yukio Osada
Bacteria of preoperative urinary tract infections contaminate the surgical fields and develop surgical site infections in urological operations.
International journal of urology : official journal of the Japanese Urological Association 2004;11(11):941-7.
2004: Yoshitsugu Nuki; Shunro Uchinokura; Shiro Miyata; Tsuyoshi Fukushima; Ryoichi Hamasuna; Shinichi Nakano; Shinichiro Wakisaka; Yutaka Akiyama; Hiroshi Itoh; Hiroaki Kataoka
Establishment and characterization of a new human glioblastoma cell line, NYGM.
Human cell 2004;17(3):145-50.
2004: Ryoichi Hamasuna; K Nose; T Sueyoshi; M Nagano; Yoshihiro Hasui; Y Osada; R Hamasuna
High-level disinfection of cystoscopic equipment with ortho-phthalaldehyde solution.
The Journal of hospital infection 2004;57(4):346-8.
2004: Hirohisa Imai; Hisae Shinohara; Hiroyuki Nakao; Hiromasa Tsukino; Ryoichi Hamasuna; Takahiko Katoh
Prevalence and risk factors of asymptomatic chlamydial infection among students in Japan.
International journal of STD & AIDS 2004;15(6):408-14.
2002: Hiroaki Kataoka; Hiroshi Itoh; Yoshitsugu Nuki; Ryoichi Hamasuna; Seiji Naganuma; Naomi Kitamura; Takeshi Shimomura
Mouse hepatocyte growth factor (HGF) activator inhibitor type 2 lacking the first Kunitz domain potently inhibits the HGF activator.
Biochemical and biophysical research communications 2002;290(3):1096-100.
2001: Hiromasa Tsukino; Ryoichi Hamasuna; T Kamimura; Masafumi Nagano; Yukio Osada
[Recurrence of vesicoureteral reflux detected 19 years after ureterocystoneostomy: a case report].
Hinyokika kiyo. Acta urologica Japonica 2001;47(10):739-41.
2001: Ryoichi Hamasuna; Hiroaki Kataoka; JY Meng; Hiroshi Itoh; T Moriyama; S Wakisaka; Masashi Koono
Reduced expression of hepatocyte growth factor activator inhibitor type-2/placental bikunin (HAI-2/PB) in human glioblastomas: implication for anti-invasive role of HAI-2/PB in glioblastoma cells.
International journal of cancer. Journal international du cancer 2001;93(3):339-45.
2001: Hiroshi Itoh; Hiroaki Kataoka; JY Meng; Ryoichi Hamasuna; Naomi Kitamura; Masashi Koono
Mouse hepatocyte growth factor activator inhibitor type 1 (HAI-1) and type 2 (HAI-2)/placental bikunin genes and their promoters.
Biochimica et biophysica acta 2001;1519(1-2):92-5.
2001: Hiroaki Kataoka; Hiroshi Itoh; Ryoichi Hamasuna; JY Meng; Masashi Koono
Pericellular activation of hepatocyte growth factor/scatter factor (HGF/SF) in colorectal carcinomas: roles of HGF activator (HGFA) and HGFA inhibitor type 1 (HAI-1).
Human cell 2001;14(1):83-93.
2001: Hiromasa Tsukino; Masafumi Nagano; Toshiyuki Takehara; Ryoichi Hamasuna; Yoshihiro Hasui; Yukio Osada
[Small cell carcinoma of the prostate: a case report].
Hinyokika kiyo. Acta urologica Japonica 2001;47(2):113-6.
2000: Hiroaki Kataoka; T Shimomura; T Kawaguchi; Ryoichi Hamasuna; H Itoh; Naomi Kitamura; Keiji Miyazawa; Masashi Koono
Hepatocyte growth factor activator inhibitor type 1 is a specific cell surface binding protein of hepatocyte growth factor activator (HGFA) and regulates HGFA activity in the pericellular microenvironment.
The Journal of biological chemistry 2000;275(51):40453-62.
2000: Hiroaki Kataoka; JY Meng; Hiroshi Itoh; Ryoichi Hamasuna; T Shimomura; T Suganuma; Masashi Koono
Localization of hepatocyte growth factor activator inhibitor type 1 in Langhans' cells of human placenta.
Histochemistry and cell biology 2000;114(6):469-75.
2000: H Kataoka; Ryoichi Hamasuna; H Itoh; N Kitamura; Masashi Koono
Activation of hepatocyte growth factor/scatter factor in colorectal carcinoma.
Cancer research 2000;60(21):6148-59.
2000: Hiroshi Itoh; Masamichi Yamauchi; Hiroaki Kataoka; Ryoichi Hamasuna; Naomi Kitamura; Masashi Koono
Genomic structure and chromosomal localization of the human hepatocyte growth factor activator inhibitor type 1 and 2 genes.
European journal of biochemistry / FEBS 2000;267(11):3351-9.
2000: Hiroshi Itoh; Ryoichi Hamasuna; Hiroaki Kataoka; Masamichi Yamauchi; Keiji Miyazawa; Naomi Kitamura; Masashi Koono
Mouse hepatocyte growth factor activator gene: its expression not only in the liver but also in the gastrointestinal tract.
Biochimica et biophysica acta 2000;1491(1-3):295-302.
2000: Hiroshi Itoh; Hiroaki Kataoka; M Tomita; Ryoichi Hamasuna; Y Nawa; Naomi Kitamura; Masashi Koono
Upregulation of HGF activator inhibitor type 1 but not type 2 along with regeneration of intestinal mucosa.
American journal of physiology. Gastrointestinal and liver physiology 2000;278(4):G635-43.
2000: Hiroaki Kataoka; Hiroshi Itoh; H Uchino; Ryoichi Hamasuna; Naomi Kitamura; Kazuki Nabeshima; Masashi Koono
Conserved expression of hepatocyte growth factor activator inhibitor type-2/placental bikunin in human colorectal carcinomas.
Cancer letters 2000;148(2):127-34.
2000: H Uchino; Hiroaki Kataoka; Hiroshi Itoh; Ryoichi Hamasuna; Masashi Koono
Overexpression of intestinal trefoil factor in human colon carcinoma cells reduces cellular growth in vitro and in vivo.
Gastroenterology 2000;118(1):60-9.
1999: M Nagano; T Shitamura; S Kodama; Ryoichi Hamasuna; Y Osada
[Acute renal failure due to over-infusion in a child with bilateral obstruction of the pyeloureteral junction].
Hinyokika kiyo. Acta urologica Japonica 1999;45(9):633-5.
1999: Hiroaki Kataoka; Yutaka Akiyama; S Kubo; Hiroshi Itoh; Ryoichi Hamasuna; N Tajima; Masashi Koono
Solitary fibrous tumor of the spinal nerve rootlet: case report and literature survey.
Pathology international 1999;49(9):826-30.
1999: Ryoichi Hamasuna; Hiroaki Kataoka; T Moriyama; Hiroshi Itoh; Motoharu Seiki; Masashi Koono
Regulation of matrix metalloproteinase-2 (MMP-2) by hepatocyte growth factor/scatter factor (HGF/SF) in human glioma cells: HGF/SF enhances MMP-2 expression and activation accompanying up-regulation of membrane type-1 MMP.
International journal of cancer. Journal international du cancer 1999;82(2):274-81.
1999: Hiroshi Itoh; Hiroaki Kataoka; Ryoichi Hamasuna; Naomi Kitamura; Masashi Koono
Hepatocyte growth factor activator inhibitor type 2 lacking the first Kunitz-type serine proteinase inhibitor domain is a predominant product in mouse but not in human.
Biochemical and biophysical research communications 1999;255(3):740-8.
1999: Hiroshi Itoh; T Shitamura; Hiroaki Kataoka; Hisamitsu Ide; Yutaka Akiyama; Ryoichi Hamasuna; Yoshihiro Hasui; Yukio Osada; Masashi Koono
Retroperitoneal bronchogenic cyst: report of a case and literature review.
Pathology international 1999;49(2):152-5.
1999: T Moriyama; H Kataoka; Ryoichi Hamasuna; E Yoshida; Tetsuro Sameshima; Tsutomu Iseda; Kiyotaka Yokogami; Shinichi Nakano; Masashi Koono; Shinichiro Wakisaka
Simultaneous up-regulation of urokinase-type plasminogen activator (uPA) and uPA receptor by hepatocyte growth factor/scatter factor in human glioma cells.
Clinical & experimental metastasis 1999;17(10):873-9.
1999: S Kodama; H Itoh; Hisamitsu Ide; H Kataoka; Toshiyuki Takehara; Masafumi Nagano; Ryoichi Hamasuna; Masashi Koono; Yukio Osada
Carcinoembryonic antigen and carbohydrate antigen 19-9-producing adenocarcinoma of the prostate: report of an autopsy case.
Urologia internationalis 1999;63(3):193-7.
1998: T Moriyama; H Kataoka; Ryoichi Hamasuna; Kiyotaka Yokogami; H Uehara; H Kawano; Tomokazu Goya; H Tsubouchi; Masashi Koono; Shinichiro Wakisaka
Up-regulation of vascular endothelial growth factor induced by hepatocyte growth factor/scatter factor stimulation in human glioma cells.
Biochemical and biophysical research communications 1998;249(1):73-7.
1996: T Yamaguchi; T Nagata; Ryoichi Hamasuna; Y Osada
[Indication for surgery of pediatric testicular and funicular hydroceles in view of natural course].
Nihon Hinyōkika Gakkai zasshi. The japanese journal of urology 1996;87(11):1243-9.
1990: T Yamaguchi; Ryoichi Hamasuna; S Kitada; Y Osada; Y Asada
Bilateral pararenal lymphatic cysts associated with hypertension.
Urologia internationalis 1990;45(3):190-2.
1989: T Yamaguchi; Ryoichi Hamasuna; Y Hasui; S Kitada; Y Osada
47,XXY/48,XXY,+21 chromosomal mosaicism presenting as hypospadias with scrotal transposition.
The Journal of urology 1989;142(3):797-8.