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Matsuda M, Fishman RS, Hong T, Lee CH, Ushiyama T, Yanagisawa Y, Tomioka Y, Ito T. magnetic dispersion and anisotropy in multiferroic BiFeO3. Phys Rev Lett 2012; 109:067205. [PMID: 23006302 DOI: 10.1103/physrevlett.109.067205] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Indexed: 06/01/2023]
Abstract
We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observed. The direct observation of the gaps enables us to accurately determine the Dzyaloshinskii-Moriya (DM) interaction and the single ion anisotropy. The DM interaction supports a sizable magnetoelectric coupling in this compound.
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Affiliation(s)
- M Matsuda
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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2
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Suzuki K, Ushiyama T, Kageyama S, Ishikawa A, Mugiya S, Fujita K. Gasless laparoscopy-assisted live donor nephrectomy: The initial 5 cases. MINIM INVASIV THER 2009. [DOI: 10.3109/13645709709152830] [Citation(s) in RCA: 5] [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] [Indexed: 01/10/2023]
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Aso Y, Ushiyama T, Nakano M, Ohta N, Tajima A. Preoperative Diagnosis of Localization of Abnormal Parathyroid Glands. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1060680] [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: 10/21/2022]
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Ushiyama T, Tanaka H, Nagaoka H, Mizuno T, Someya T, Ito F, Tamura K, Arai H. [Mitral valve repair with concomitant coronary bypass for partial rupture of an anterior papillary muscle]. Kyobu Geka 2007; 60:1158-1162. [PMID: 18078082] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report a case of severe mitral regurgitation due to partial rupture of an anterior papillary muscle. A 63-year-old man was admitted to a hospital with heart failure. He was treated with diuretic agents effectively. Echocardiography demonstrated severe mitral regurgitation with prolapse of posterior leaflet and small mass-like structure on the prolapsed segment that was diagnosed the thickened leaflet. Coronary angiography revealed total occlusion of left anterior descending artery (LAD) filled with good collateral from right posterior descending artery and severe diffuse stenosis of circumflex artery (Cx). The patient underwent surgery on the 33rd day after admission with heart failure. At surgery, we recognized rupture of one of the heads of anterior papillary muscle that was entangled in chordae of the prolapsed segment. Mitral valve repair and coronary revascularization to LAD and Cx was successfully performed. His postoperative course was uneventful, and he was discharged on the 28th postoperative day.
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Affiliation(s)
- T Ushiyama
- Thoracic Cardiovascular Surgery Department, Tokyo Medical and Dental University, Tokyo, Japan
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5
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Kitahara S, Iwatsubo E, Yasuda K, Ushiyama T, Nakai H, Suzuki T, Yamashita T, Sato R, Kihara T, Yamanishi T, Nohara Y. Practice patterns of Japanese physicians in urologic surveillance and management of spinal cord injury patients. Spinal Cord 2005; 44:362-8. [PMID: 16331312 DOI: 10.1038/sj.sc.3101854] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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: 11/10/2022]
Abstract
STUDY DESIGN Analysis of answers to a new questionnaire. OBJECTIVE To examine current practice patterns of physicians in the urological surveillance and management of spinal cord injury (SCI) patients in Japan. SETTING Nationwide questionnaire survey to physicians in Japan. METHODS A Japanese version of the 14-item questionnaire survey carried out in US was mailed to 770 members of the Japanese Neurogenic Bladder Society (JNBS). RESULTS We received answers to our questionnaire from 333 (43.2%) members of JNBS. The responders were all urologists. For surveillance of the upper urinary tract (UUT), 239 (71.8%) respondents preferred abdominal ultrasound. Cystometry was performed routinely by 174 (52.3%) respondents for the evaluation of vesicourethral function. Cystoscopy was carried out in cases of hematuria (88.0%) and bladder stone (55.3%). Surveillance of the urinary tract was performed every year in 154 (46.2%). For detection of bladder cancer, which 119 (37.9%) respondents have experienced, 94.9% physicians perform cystoscopy, 76.3% urinary cytology, and 60.4% ultrasound. For initial treatment of detrusor-sphincter dyssynergia (DSD), 225 (69.2%) respondents chose alpha-blocker, and 94 (28.9%) chose clean intermittent catheterization (CIC) with/without anticholinergic agent(s). For initial treatment of overactive bladder, 245 (74.7%) chose anticholinergic agent(s) only and 63 (19.2%) chose anticholinergic agent(s) with CIC. For initial treatment of areflexic bladder, 233 (73.7%) chose CIC and 63 (19.9%) chose Credé maneuver or tapping. CONCLUSIONS This survey shows that there are some differences in urological surveillance and management of SCI patients between Japan and the US. Reasons for the discrepancy should be examined.
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Affiliation(s)
- S Kitahara
- Department of Urology, Koshigaya Hospital, Dokkyo University School of Medicine, Koshigata, Japan
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Abstract
We report a case of thigh emphysema resulting from perforated appendicitis. The patient was an 83-year-old man who had no apparent abdominal signs and was initially misdiagnosed as having psoas abscess. Magnetic resonance imaging of the pelvis revealed appendicitis, and a barium enema showed a leakage of enhanced contrast material from the appendix region down into the thigh. A retroperitoneal perforation of the retrocaecal appendix without peritonitis was diagnosed. The patient underwent an appendectomy and curettage of the retroperitoneal and psoas muscle spaces, as well as the thigh. He recovered gradually, though the abscess had extended into the hip joint and resulted in osteomyelitis, requiring an additional procedure of resection arthroplasty. The patient fully recovered with no signs of infection one year postoperatively.
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Affiliation(s)
- T Ushiyama
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta, Otsu, Japan.
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7
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Abstract
BACKGROUND Recent studies have shown that adipose tissue is an endocrine organ that releases various cytokines. OBJECTIVE To investigate the production of growth factors and proinflammatory cytokines in infrapatellar fat pad specimens. METHODS Infrapatellar fat pad tissues were obtained from patients during knee surgery. Protein levels of basic fibroblast growth factor (bFGF), vascular endothelial growth factor (VEGF), tumour necrosis factor (TNF)alpha, and interleukin (IL)6 in homogenised tissues were measured by an enzyme immunoassay. Gene expressions for those cytokines were examined by reverse transcription-polymerase chain reaction (RT-PCR). Localisation of bFGF and VEGF was evaluated by immunohistochemistry and in situ hybridisation. RESULTS Infrapatellar fat pads were found to contain various protein levels of bFGF, VEGF, TNF alpha, and IL6. Further, gene expressions for these cytokines were detected by RT-PCR. Immunohistochemistry and in situ hybridisation showed that the expressions of both bFGF and VEGF were localised in immature adipocytes, interstitial undifferentiated mesenchymal cells, and vascular endothelial cells. CONCLUSION The production of bFGF, VEGF, TNF alpha, and IL6 in the infrapatellar fat pad was demonstrated. Although synovial cells and articular chondrocytes are thought to be primary sources of cytokines found in knee synovial fluids, the results suggest that they may also originate from this fat pad.
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Affiliation(s)
- T Ushiyama
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta, Otsu, Japan.
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Suzuki K, Ishikawa A, Ushiyama T, Fujita K. Retroperitoneoscopic living donor nephrectomy without gas insufflation: the five-year Hamamatsu University experience. Transplant Proc 2002; 34:720-1. [PMID: 12009677 DOI: 10.1016/s0041-1345(02)02630-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Kazuo Suzuki
- Department of Urology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu 431-3192, Japan.
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Hirano Y, Kageyama S, Ushiyama T, Suzuki K, Fujita K. Clinical usefulness of chemotherapy based on an in vitro chemosensitivity test in urothelial cancer patients. Anticancer Res 2001; 21:4061-6. [PMID: 11911292] [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: 02/24/2023]
Abstract
BACKGROUND We evaluated the clinical usefulness of individualized chemotherapy based on an in vitro chemosensitivity test, i.e., the histoculture drug response assay (HDRA), for urothelial cancer. MATERIALS AND METHODS 62 clinically obtained cancer specimens were studied. Each specimen was tested for sensitivity to nine anticancer drugs. The antitumor effect was calculated as the inhibition rate to their control values. The HDRA effective cytotoxic drugs were selected for clinical treatment. RESULTS HDRA was possible in 58 out of 62 specimens (93.5%). Their chemosensitivity showed a wide variety even among the same histological category. No correlation was seen between histological grade and chemosensitivity. The effect of chemotherapy on the measurable lesions was studied in 12 patients and good clinical responses were obtained in 7 of them (58.3%). All 7 responders were the patients who received drugs predicted to be effective by HDRA. In 8 out of the 12 patients (66.7%), including 7 true-positive and 1 true-negative, HDRA correctly predlicted the clinical effect of chemotherapy. CONCLUSION The HDRA might be feasible for predicting the efficacy and, therefore, selecting the proper anticancer drug for individual patients.
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Affiliation(s)
- Y Hirano
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu City, Japan.
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Nobata S, Ohira T, Nagae H, Ushiyama T, Suzuki K, Fujita K. [Licorice-induced pseudoaldosteronism in a patient with a non-functioning adrenal tumor]. Hinyokika Kiyo 2001; 47:633-5. [PMID: 11692600] [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] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
A 72-year-old man was diagnosed with hypertension, hypokalemia, and left adrenal tumor at another hospital, and was referred to our hospital on suspicion of primary aldosteronism. Investigations revealed low plasma aldosterone concentration, and the left adrenal tumor proved to be nonfunctioning, not hyperfunctioning. "Licorice" had been prescribed for the treatment of recurrent cramps in his calf. After stopping the licorice, his condition changed to normokalemia strongly suggesting that his pseudoaldosteronism had been caused by the drug. We reviewed 140 reports on licorice-induced pseudoaldosteronism in Japan, and found a second patient who might have suffered a similar coincidental nonfunctioning adrenal tumor.
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Affiliation(s)
- S Nobata
- Department of Urology, Hamamatsu University School of Medicine
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Suzuki K, Kageyama S, Hirano Y, Ushiyama T, Rajamahanty S, Fujita K. Comparison of 3 surgical approaches to laparoscopic adrenalectomy: a nonrandomized, background matched analysis. J Urol 2001. [PMID: 11458043 DOI: 10.1016/s0022-5347(05)65959-9] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [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: 01/11/2023]
Abstract
PURPOSE To clarify the characteristics of surgical approaches to laparoscopic adrenalectomy we performed background matched analysis of clinical outcomes of the 3 approaches. MATERIALS AND METHODS From February 1992 to July 2000 we performed 118 laparoscopic adrenalectomies in 115 patients with adrenal tumors. For these operations we used the anterior transperitoneal approach in 46 patients, the lateral transperitoneal approach in 32 and the lateral retroperitoneal approach in 40. RESULTS To exclude the learning curve effect we eliminated our initial 20 patients treated with the anterior transperitoneal approach. To allow background matching of the 3 groups we also excluded 14 patients with tumors more than 5 cm., 6 who underwent conversion to open surgery and 1 patient who required 5 days of bed rest for retroperitoneal hematoma caused by bleeding from a trocar port. The final analysis included 16, 25 and 36 cases managed via the anterior transperitoneal, lateral transperitoneal and lateral retroperitoneal approach, respectively. Average operative time was significantly shorter for the lateral transperitoneal approach. Postoperative recovery was not significantly different in the lateral transperitoneal and lateral retroperitoneal groups. Postoperative complications included mild paralytic ileus in 2 patients and shoulder tip pain, probably peritoneal irritation due to carbon dioxide insufflation and bowel preparation, in 4 in the transperitoneal groups. Our results imply that the easiest procedure is the lateral transperitoneal approach but the lateral retroperitoneal approach is slightly less invasive. CONCLUSIONS Although it is important to remember that this study was not a prospective randomized trial and, thus, had from certain biases, we believe that if a tumor is more than 5 cm. and/or the surgeon is not yet skilled in laparoscopic adrenalectomy, the lateral transperitoneal approach is the most suitable method. If the surgeon has performed at least 20 operations, the adrenal tumor is unilateral and the lesion is less than 5 cm., the lateral retroperitoneal approach seems to be more suitable because of its minimally invasive nature. The lateral retroperitoneal approach is also preferred in patients with a history of upper abdominal surgery. With improvements in technique and new instruments the time required for the lateral retroperitoneal approach has been significantly decreased.
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Affiliation(s)
- K Suzuki
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Abstract
An 18-yr-old man received a kidney graft from a 60-yr-old female cadaver donor on February 8, 1996. Postoperative course was uneventful and his serum creatinine level was stable at about 1.8 mg/dL. On April 30, 1999, he collided with a truck while riding a motor cycle. Macroscopic hematuria was observed and CT showed an extensive retroperitoneal hematoma. Because his anemia and hypotension were becoming worse after transfusion of 9 units of blood, he was operated on as an emergency case. A large rupture reaching the pelvis and calyces was observed in the upper pole of the grafted kidney. There were also numerous shallow lacerations, but the major arteries and veins were not injured. The rupture was closed by suturing the renal parenchyma with the peritoneum, and the other shallow lacerations were closed by suturing the renal capsule. The kidney could be salvaged without requiring hemodialysis. The serum creatinine was maintained at 2.1 mg/dL during follow-up. A review of the literature showed that 6 cases of traumatic renal graft rupture with salvage of the kidney have been reported. Our present case was the seventh, and was the most severe graft rupture reported so far.
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Affiliation(s)
- S Akabane
- Department of Urology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka 431-3192, Japan
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Ikeda C, Tanaka Y, Fujihara T, Ishii Y, Ushiyama T, Yamamoto K, Yoshioka N, Inoue H. Self-assembly of a porphyrin array via the molecular recognition approach: synthesis and properties of a cyclic zinc(II) porphyrin trimer based on coordination and hydrogen bonding. Inorg Chem 2001; 40:3395-405. [PMID: 11421685 DOI: 10.1021/ic001421k] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [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: 11/30/2022]
Abstract
Self-assembly of [5-(pyrazol-4-yl)-10,20-bis(p-tolyl)-15- (2-ethoxycarbonylphenyl)porphyrinato]-zinc(II) (1), designed to have both a coordination site and a hydrogen bonding site, leads to a stable cyclic trimer array where coordination of the pyrazole nitrogen to the zinc(II) ion as well as hydrogen bonding between carbonyl oxygen and pyrazole NH holds each zinc(II) porphyrin. The recognition event for pyrazole has been confirmed preliminarily in the model studies using [5-(2-ethoxycarbonylphenyl)tris(p-tolyl)porphyrinato]-zinc(II) (3). The zinc(II) porphyrin 3 has large affinity for pyrazole due to the hydrogen bond between pyrazole and the 2-ethoxycarbonyl group in addition to the coordination bonding accompanied by the conformational change of the ethoxycarbonyl group in the coordination process. The (1)H NMR, IR, and UV-vis spectra of 1 and its ESI-MS and VPO measurements have revealed the cyclic trimer structure with an overall association constant of 6.0 x 10(13) M(-2) at 22 degrees C. The contribution of the hydrogen bond to the total free energy change in trimer formation is estimated to be 7.5 kcal/mol based on a reference trimer system without a hydrogen bonding site. The trimer geometry causes characteristic exitonic interaction between porphyrin units to yield a broad Soret band which is deconvoluted into four components by UV-vis and MCD spectral analyses. Electrochemical measurements have shown that only the first ring-oxidation process proceeds stepwise in the trimer.
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Affiliation(s)
- C Ikeda
- Department of Applied Chemistry, and Department of Chemistry, Keio University, 3-14-1 Hiyoshi Kohoku-ku, Yokohama 223-8522, Japan.
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Shinbo H, Suzuki K, Sato T, Kageyama S, Ushiyama T, Fujita K. Simultaneous bilateral laparoscopic adrenalectomy in ACTH-independent macronodular adrenal hyperplasia. Int J Urol 2001; 8:315-8. [PMID: 11389748 DOI: 10.1046/j.1442-2042.2001.00305.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 11/20/2022]
Abstract
Laparoscopic surgery for urological conditions has now become popular worldwide. The case is reported of a 56-year-old woman who underwent simultaneous bilateral laparoscopic adrenalectomy for adrenocorticotropic hormone-independent macronodular adrenocortical hyperplasia (AIMAH), followed by autotransplantation of resected adrenal gland fragments. Simultaneous laparoscopic adrenalectomies seem feasible for a patient with AIMAH because of its minimally invasive nature. However, autotransplantation of adrenal fragments failed in this patient with AIMAH.
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Affiliation(s)
- H Shinbo
- Department of Urology, Hamamatsu University School of Medicine, Shizuoka, Japan.
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Tani Y, Nishimura I, Mimura T, Ushiyama T, Inoue K, Murakami M. Enlargement of iliopsoas bursa in a patient with polymyalgia rheumatica. J Rheumatol 2001; 28:1198-9. [PMID: 11361214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
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Hanazaki K, Koide N, Kajikawa S, Ushiyama T, Watanabe T, Adachi W, Amano J. Cavernous hemangioma of the liver with giant cyst formation: degeneration by apoptosis? J Gastroenterol Hepatol 2001; 16:352-5. [PMID: 11339432 DOI: 10.1046/j.1440-1746.2001.02344.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Cavernous hemangioma of the liver with cyst formation is a very rare condition. A case of cavernous hemangioma of the liver with unilocular giant cyst formation undergoing surgical removal is reported. Notably, the patient also had Budd-Chiari syndrome with an obstructing lesion in the inferior vena cava. The cystic degeneration of the hemangioma implied a relationship with apoptosis. This is the first reported case of Budd-Chiari syndrome caused by advanced cystic degeneration of hepatic cavernous hemangioma.
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Affiliation(s)
- K Hanazaki
- Second Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
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Takayama T, Kato Y, Tsuru N, Takada S, Kurita Y, Ihara H, Kageyama S, Ishikawa A, Mugiya S, Ushiyama T, Suzuki K, Fujita K. [A case of pheochromocytoma with von Recklinghausen's and review of 67 Japanese cases]. Nihon Hinyokika Gakkai Zasshi 2001; 92:479-83. [PMID: 11398324 DOI: 10.5980/jpnjurol1989.92.479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/08/2022]
Abstract
A 19-year-old woman with von Recklinghausen's disease was referred to our hospital because of right adrenal pheochromocytoma. The tumor was detected incidentally with the abdominal ultrasonography when she complained epigastralgia to the home doctor who treated her hypertension. Plasma and urinary catecholamines level were elevated. The tumor was removed by laparoscopy assisted adrenalectomy without pneumoperitoneum. The resected specimen was 35 x 60 x 75 mm in size and weighed 70 g. Pathological diagnosis was adrenomedullary pheochromocytoma. Postoperative course was uneventful. She has been well with no signs of recurrence after 7.5 years. We reviewed 67 Japanese patients previously reported as von Recklinghusen's disease with pheochromocytoma. Of the 60 patients whose details were described, 16.7% had metastases and pathological malignancy from pheochromocytoma.
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Affiliation(s)
- T Takayama
- Department of Urology, Hamamatsu University School of Medicine
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Abstract
The details are reported of bladder dysfunction in a Japanese boy with adrenoleukodystrophy. He developed gait disturbance at the age of 15 years. Spastic paraparesis progressed from the legs to the hands and brain magnetic resonance imaging showed characteristic degenerative change. Detrusor hyperreflexia was found by a urodynamic study and detrusor-sphincter dyssynergia was also suspected.
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Affiliation(s)
- H Shinbo
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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Sakaguchi T, Nakamura S, Suzuki S, Konno H, Fujita K, Suzuki K, Ushiyama T, Ishikawa A, Harada M, Baba S. Intracystic hemorrhage of pancreatic serous cystadenoma after renal transplantation: report of a case. Surg Today 2001; 30:667-9. [PMID: 10930237 DOI: 10.1007/s005950070111] [Citation(s) in RCA: 9] [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: 11/30/2022]
Abstract
Immunosuppressive therapy after transplantation increases the risk of developing neoplasms, and neoplasms of the digestive organs are very common in Asia. We experienced a patient with an intracystic hemorrhage of pancreatic serous cystadenoma during the follow-up after renal transplantation. Pancreatic cystadenomas are not frequent. Only two cases, presenting with acute abdomen, have so far been reported in the literature. The intracystic hemorrhage in our case may have been related to a rapid tumor growth due to weakened antitumor immunity and azathioprine-induced pancreatitis.
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Affiliation(s)
- T Sakaguchi
- Department of Surgery II, Hamamatsu University School of Medicine, Japan
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Inoue K, Hukuda S, Fardellon P, Yang ZQ, Nakai M, Katayama K, Ushiyama T, Saruhashi Y, Huang J, Mayeda A, Catteddu I, Obry C. Prevalence of large-joint osteoarthritis in Asian and Caucasian skeletal populations. Rheumatology (Oxford) 2001; 40:70-3. [PMID: 11157144 DOI: 10.1093/rheumatology/40.1.70] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [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: 11/12/2022] Open
Abstract
OBJECTIVE To determine ethnic variations of large-joint osteoarthritis (OA) in past populations. METHODS One thousand two hundred and nine adult skeletons, excavated from archaeological sites in Japan, China and France were assessed for OA as defined by the presence of eburnation. RESULTS Within Asian skeletal populations, elbow OA and patellofemoral joint OA were more common in hunter-gatherers than in agriculturalists. Compared with Caucasians, the Asian skeletal population had a higher prevalence of tibiofemoral joint OA. CONCLUSION The relative frequencies of OA within and between ethnic groups at certain joint sites have changed over time from the past to the present.
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Affiliation(s)
- K Inoue
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Otsu, Japan
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Abstract
STUDY DESIGN A retrospective study. OBJECTIVES To investigate the risk factors of vesicoureteral reflux in the early stage of spinal cord injury. SETTING Japan. METHODS Urological evaluation, including cystography and urodynamic study was performed in patients in the early stage of spinal cord injury. The patients were divided into two groups. Group 1 included 13 patients with vesicoureteral reflux. Group 2 included 97 patients without vesicoureteral reflux. We compared Group 1 and Group 2 regarding bladder deformation, the level of spinal cord injury, bladder behaviour, bladder compliance, high urethral closure pressure and method of urine evacuation. RESULTS The patients injured between Th10 and L2 showed a significantly higher incidence of vesicoureteral reflux than those injured in other areas (P<0.01). Furthermore, bladder compliance among patients with vesicoureteral reflux tended to be low. Other factors showed no differences between patients with and without vesicoureteral reflux. CONCLUSION Injuries between Th10 and L2 involve the sympathetic nervous system. Patients with such injuries often exhibited vesicoureteral reflux in the early stage of spinal cord injury.
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Affiliation(s)
- T Suzuki
- Department of Urology, National Rehabilitation Center for the Disabled, Tokorozawa, Japan
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Sugiyama T, Hirano Y, Ushiyama T, Suzuki K, Fujita K, Ohmi Y. [Burned-out testicular tumor: a case report]. Hinyokika Kiyo 2000; 46:829-32. [PMID: 11193307] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A 29-year-old man was referred to our hospital with loss of appetite and a left lower abdominal mass. A small nodule was palpable in his left testis and ultrasonographic examination demonstrated that the nodule was low echoic. Computed tomography showed a large mass in his left retroperitoneal space. We thought the mass was a metastatic lesion from a testicular tumor. Left orchiectomy was done and microscopic examination revealed no viable tumor cells. Only fibrous tissue, small calcified areas, and hyaline bodies were found. As tumor markers were normalized after 3 courses of chemotherapy with bleomycin, etoposide, and cisplatine, the retroperitoneal mass was removed with the left kidney. It consisted of embryonal carcinoma, mature teratoma, and yolk sac tumor. One course of adjuvant chemotherapy was done and the patient has since been free from recurrence. We suppose that the tumor was a so-called 'burned-out' testicular tumor.
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Affiliation(s)
- T Sugiyama
- Department of Urology, Hamamatsu University School of Medicine
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Hirano Y, Kageyama S, Ushiyama T, Suzuki K, Fujita K. Thymidine phosphorylase activity in transitional cell cancer: relation to histological parameters and chemosensitivity to fluorouracil-related drugs. Anticancer Res 2000; 20:4315-8. [PMID: 11205264] [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: 02/19/2023]
Abstract
BACKGROUND Thymidine phosphorylase (TdR-Pase) is an essential enzyme for the metabolism of fluorouracil-related drugs and it is also recognized as a potent angiogenic factor. We measured the TdR-Pase activity in human transitional cell cancers (TCCs) of the urinary tract to assess the relationship between TdR-Pase activity and degree of tumor malignancy. Furthermore, we investigated the relationship between TdR-Pase activity and chemosensitivity to fluorouracil-related drugs. MATERIALS AND METHODS Sixty-two TCC tissues and 12 normal bladder tissues were obtained. TdR-Pase activity was measured with the enzyme-linked immunosorbent assay. The in vitro histoculture drug response assay was also performed to investigate tumor sensitivity to 5-fluorouracil (5-FU) and doxifluridine (5'-DFUR). RESULTS The TdR-Pase activity of TCCs was three-fold higher than that of normal tissues. The TdR-Pase activity increased along with the histological grade, and the TdR-Pase activity of invasive cancers was significantly higher than that of superficial cancers. However, TdR-Pase showed no relationship with the sensitivity to 5-FU or 5'DFUR. CONCLUSION A high TdR-Pase activity in human TCCs was confirmed to predict a high tumor grade and stage. However, the anti-tumor effect of fluorouracil-related drugs was independent of the TdR-Pase activity.
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Affiliation(s)
- Y Hirano
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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Kawasaki T, Ushiyama T, Inoue K, Hukuda S. Effects of estrogen on interleukin-6 production in rheumatoid fibroblast-like synoviocytes. Clin Exp Rheumatol 2000; 18:743-5. [PMID: 11138340] [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: 02/18/2023]
Abstract
OBJECTIVE In view of the importance of estrogen and IL-6 in the pathogenesis of rheumatoid arthritis (RA), the effects of 17 beta-estradiol (E2) on interleukin (IL)-6 production in cultured rheumatoid fibroblast-like synoviocytes were investigated. METHODS Cultured fibroblast-like synoviocytes obtained from RA joints were treated with the vehicle (control), as well as 10(-8) and 10(-6) M of E2, with or without IL-1 beta stimulation. After 72 hours of culture, the levels of IL-6 in supernatants were measured by ELISA. RESULTS Treatment with 10(-8) and 10(-6) M of E2 had no effect on the constitutive production of IL-6 in cultured fibroblast-like synoviocytes. However, E2 increased IL-1 beta-induced IL-6 production in a dose-dependent manner, with a mean 12.5% increase with 10(-8) M of E2 (p = 0.048) and 33.4% with 10(-6) M (p < 0.0001) versus the control. CONCLUSION Estrogen up-regulates IL-1 beta-induced IL-6 production in cultured fibroblast-like synoviocytes, possibly contributing to the enhancement of rheumatoid inflammation in synovial tissues.
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Affiliation(s)
- T Kawasaki
- Department of Orthopedic Surgery, Shiga University of Medical Science, Seta, Otsu, Shiga, Japan
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Kurita Y, Suzuki A, Masuda H, Ushiyama T, Suzuki K, Fujita K. Transition zone volume-adjusted prostate-specific antigen value predicts extracapsular carcinoma of the prostate in patients with intermediate prostate-specific antigen levels. Eur Urol 2000; 33:32-8. [PMID: 9471039 DOI: 10.1159/000019532] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 02/06/2023]
Abstract
OBJECTIVE The aim of the present study was to examine the efficacy of the volume-adjusted prostate-specific antigen (PSA) density as a predictor of pathological stage. Among patients who underwent radical prostatectomy for clinically organ-confined prostate cancer, we selected patients with PSA levels of 4-10 ng/ml. In these patients with borderline PSA value extent of disease is most difficult to predict. Using the transition zone (TZ) volume instead of the total prostate volume, we compared the ability of PSA to predict the tumor extent. METHODS From April 1992 to November 1996, we examined 61 consecutive patients who underwent radical prostatectomy. Their age ranged from 52 to 78 years. The PSA densities for the total prostate volume (PSAD) and for the TZ volume (PSAT) were calculated by transrectal ultrasound examinations. To compare the usefulness of PSA, PSAD, and PSAT, the area under the receiver-operator characteristic (ROC) curve was calculated for each parameter. RESULTS The final pathological stage was pT2N0M0 in 34 patients, pT3N0M0 in 20 patients, and pT3N1M0 in 7 patients. Accordingly, 34 patients (55.7%) had organ-confined prostate cancer. In patients with capsular perforation, the areas under the ROC curve were 0.686 for PSA, 0.665 for PSAD, and 0.860 for PSAT, while in those with seminal vesicle invasion the respective values were 0.712, 0.703, and 0.882. Thus, PSAT was superior to PSA and PSAD in differentiating extracapsular disease. CONCLUSION PSAT provides superior preoperative prediction of extracapsular tumor invasion, which appears to be useful in treatment selection (e.g. total prostatectomy).
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Affiliation(s)
- Y Kurita
- Department of Urology, Hamamatsu University School of Medicine, Japan
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Inoue K, Wicart P, Kawasaki T, Huang J, Ushiyama T, Hukuda S, Courpied J. Prevalence of hip osteoarthritis and acetabular dysplasia in french and japanese adults. Rheumatology (Oxford) 2000; 39:745-8. [PMID: 10908693 DOI: 10.1093/rheumatology/39.7.745] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [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: 11/13/2022] Open
Abstract
OBJECTIVE : To determine ethnic variations of acetabular morphology, and to delineate their relationship with hip osteoarthritis (OA). METHODS : Radiographs of 283 French men, 118 French women, 414 Japanese men and 368 Japanese women, aged 20-79 yr, who underwent intravenous urography were assessed by a single observer for morphometric measurement and hip OA scoring. RESULTS : The standardized morbidity ratio (SMR) for hip OA was highest in French men and lowest in Japanese men, whereas the SMR for acetabular dysplasia was highest in Japanese women and lowest in French men. French men and women had the highest centre-edge angle, followed by Japanese men then Japanese women. CONCLUSION : In a large number of subjects assessed by a single observer, this study confirms other previous reports that the relationship between acetabular dysplasia and risk of hip OA is negative.
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Affiliation(s)
- K Inoue
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Otsu, Japan, Chirurgie Orthopédique, Hôpital Saint-Joseph, Paris and. Service d'Orthopédie, Hôpital Cochin, Paris, France
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Takahashi H, Hirano Y, Ishikawa A, Ushiyama T, Suzuki K, Fujita K. [Penile metastasis from renal cell carcinoma: a case report]. Hinyokika Kiyo 2000; 46:463-5. [PMID: 10965451] [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] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Penile metastasis is rare. It occurs in the advanced stage of genitourinary cancer, with many other metastases in various organs. All 7 patients with penile metastasis of renal cell cancer, reported in the Japanese literature, died within a year. Our case was not the exception. A 69-year-old male presented with right flank pain and penile induration. Right renal cancer with liver invasion and multiple pulmonary metastases were found. Microscopic examination revealed a sarcomatous pattern. He died 4 months later.
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Affiliation(s)
- H Takahashi
- Department of Urology, Hamamatsu University School of Medicine
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Kageyama S, Watanabe T, Kurita Y, Ushiyama T, Suzuki K, Fujita K. Can persisting detrusor hyperreflexia be predicted after transurethral prostatectomy for benign prostatic hypertrophy? Neurourol Urodyn 2000; 19:233-40. [PMID: 10797580 DOI: 10.1002/(sici)1520-6777(2000)19:3<233::aid-nau4>3.0.co;2-m] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [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: 11/10/2022]
Abstract
Detrusor hyperreflexia (DH) is frequently found in patients with benign prostatic hypertrophy (BPH) and persists in 30-50% of patients after successful removal of bladder neck obstruction by transurethral prostatectomy (TUR-P) or surgical enucleation of the prostate. It would be beneficial for surgeons to be able to identify patients who are at risk of persistent post-operative urinary irritation symptoms and DH. Twenty-three patients who showed DH pre-operatively were included in this study. Of these 23 patients, four had neurogenic bladder because of previous cerebrovascular disease. The other 19 patients were considered to have DH because of BPH. These 19 patients were classified according to their cystometry chart patterns. Pattern 1 was the continual sporadic onset and offset of DH, pattern 2 was a single episode of DH at a bladder volume of <160 mL, and pattern 3 was a single DH episode at a bladder volume >160 mL. Preoperative single-photon emission computed tomography (SPECT) was performed on 14 patients. Cystometric findings at 3 to 6 months after surgery were compared with the pre-operative findings. Four of the six patients with pattern 2 (67%) and all patients with pattern 3 (100%) showed an absence of DH after surgery. In contrast, all five patients with pattern 1 and all four patients with neurogenic bladder showed persistent DH. Compared with pattern 3 patients, pattern 1 patients more frequently complained of urgency before surgery, and their symptoms and uroflowmetry parameters did not improve afterward. Among 14 patients who had pre-operative SPECT, all eight patients with low cerebral blood flow in the frontal region showed persisting DH. Conversely, all six patients with normal SPECT results showed no DH after surgery. When DH occurs repeatedly (pattern 1) or occurs at a bladder volume of <160 mL (pattern 2), there is a greater risk of post-operative irritation symptoms. Abnormal SPECT findings can also predict the post-operative persistence of DH. Combing these two pre-operative examinations allows us to predict better post-operative DH in patients with BPH.
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Affiliation(s)
- S Kageyama
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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Kageyama S, Watanabe T, Kurita Y, Ushiyama T, Suzuki K, Fujita K. Can persisting detrusor hyperreflexia be predicted after transurethral prostatectomy for benign prostatic hypertrophy? Neurourol Urodyn 2000. [PMID: 10797580 DOI: 10.1002/(sici)1520-6777(2000)19:3<233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Detrusor hyperreflexia (DH) is frequently found in patients with benign prostatic hypertrophy (BPH) and persists in 30-50% of patients after successful removal of bladder neck obstruction by transurethral prostatectomy (TUR-P) or surgical enucleation of the prostate. It would be beneficial for surgeons to be able to identify patients who are at risk of persistent post-operative urinary irritation symptoms and DH. Twenty-three patients who showed DH pre-operatively were included in this study. Of these 23 patients, four had neurogenic bladder because of previous cerebrovascular disease. The other 19 patients were considered to have DH because of BPH. These 19 patients were classified according to their cystometry chart patterns. Pattern 1 was the continual sporadic onset and offset of DH, pattern 2 was a single episode of DH at a bladder volume of <160 mL, and pattern 3 was a single DH episode at a bladder volume >160 mL. Preoperative single-photon emission computed tomography (SPECT) was performed on 14 patients. Cystometric findings at 3 to 6 months after surgery were compared with the pre-operative findings. Four of the six patients with pattern 2 (67%) and all patients with pattern 3 (100%) showed an absence of DH after surgery. In contrast, all five patients with pattern 1 and all four patients with neurogenic bladder showed persistent DH. Compared with pattern 3 patients, pattern 1 patients more frequently complained of urgency before surgery, and their symptoms and uroflowmetry parameters did not improve afterward. Among 14 patients who had pre-operative SPECT, all eight patients with low cerebral blood flow in the frontal region showed persisting DH. Conversely, all six patients with normal SPECT results showed no DH after surgery. When DH occurs repeatedly (pattern 1) or occurs at a bladder volume of <160 mL (pattern 2), there is a greater risk of post-operative irritation symptoms. Abnormal SPECT findings can also predict the post-operative persistence of DH. Combing these two pre-operative examinations allows us to predict better post-operative DH in patients with BPH.
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Affiliation(s)
- S Kageyama
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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Fujita K, Mizuno T, Ushiyama T, Suzuki K, Hadano S, Satoh S, Kambayashi T, Mugiya S, Nakano M. Complicating risk factors for pyelonephritis after extracorporeal shock wave lithotripsy. Int J Urol 2000; 7:224-30. [PMID: 10843454 DOI: 10.1046/j.1442-2042.2000.00182.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 11/20/2022]
Abstract
PURPOSE The score to predict the risk of post-extracorporeal shock wave lithotripsy (ESWL) pyelonephritis was evaluated. The score was based on the multivariate analysis of risk factors available pre-operatively. Stone size, pyuria, bacteriuria, previous pyelonephritis and other adjunctive procedures had been selected and scored. METHODS Three-hundred and forty-eight adult patients without active urinary infection undergoing ESWL therapy were studied. One of three regimens were selected by either doctor or patient: (i) no antimicrobial treatment; (ii) one dose of levofloxacin; or (iii) 1 week course of levofloxacin. Who and why selected it were described. Post-ESWL fever over 38 degrees C was defined as the unfavorable event. RESULTS/CONCLUSION With increasing score, doctors recommend taking an antimicrobial. There were 11 bacteriuric patients and post-ESWL pyelonephritis developed in one of them. Bacteria within the stone and post-ESWL ureteral obstruction caused by the stone fragments were considered to be important in developing pyelonephritis. However, multiple factors were related with it. Although their decision was not based simply on the score, the score was confirmed to be useful in identifying the high-risk patients and, therefore, to implement cost-effective antimicrobial use.
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Affiliation(s)
- K Fujita
- Department of Urology, Hamamatsu University School of Medicine, Shizuoka, Japan.
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Affiliation(s)
- K Suzuki
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Mori K, Ushiyama T, Inoue K, Hukuda S. Polymorphic CAG repeats of the androgen receptor gene in Japanese male patients with ankylosing spondylitis. Rheumatology (Oxford) 2000; 39:530-2. [PMID: 10852984 DOI: 10.1093/rheumatology/39.5.530] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/14/2022] Open
Abstract
OBJECTIVE In view of a possible role of androgens in the pathogenesis of ankylosing spondylitis (AS), we investigated the association between Japanese male patients with AS and CAG microsatellites of the androgen receptor (AR) gene which related to the AR transactivation function. METHODS Peripheral blood was collected from 39 men with AS and 305 male control subjects. The number of CAG repeats in exon 1 of the AR gene was determined. RESULTS CAG repeat lengths in AS patients were significantly shorter than those in the controls (median value 22 vs 23; P = 0.03). However, there was no significant difference in CAG repeats between HLA-B27-positive and -negative patients (median value 22 vs 22; P = 0.78). CONCLUSIONS Shorter CAG repeats of the AR gene, presenting high levels of transactivation activity, may play a role in male AS.
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Affiliation(s)
- K Mori
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta, Otsu, 520-2192, Japan
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Huang J, Ushiyama T, Inoue K, Kawasaki T, Hukuda S. Vitamin D receptor gene polymorphisms and osteoarthritis of the hand, hip, and knee: acase-control study in Japan. Rheumatology (Oxford) 2000; 39:79-84. [PMID: 10662878 DOI: 10.1093/rheumatology/39.1.79] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [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: 11/14/2022] Open
Abstract
OBJECTIVE To investigate the association between vitamin D receptor (VDR) gene polymorphisms andJapanese female patients with osteoarthritis (OA) of the hand, hip, and knee. METHODS BsmI,ApaI, andTaqI restriction fragment length polymorphisms (RFLPs) of the VDR gene were analysed in 270Japanese female patients with radiographic OA of the hand, hip, tibiofemoral (TF) joint, andpatellofemoral (PF) joint, as well as in female controls. RESULTS There was no significant association between the VDR gene RFLPs and OA of the hand, hip, TFjoint, PF joint, or polyarticular involvement. The previously detected preventive genotype of the VDRgene was uncommon in our test population. CONCLUSION The relative importance of VDR gene polymorphism in the development of OA may vary betweenethnic groups.
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Affiliation(s)
- J Huang
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta, Otsu,520-2192, Japan
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Ushiyama T, Ueyama H, Inoue K, Ohkubo I, Hukuda S. Expression of genes for estrogen receptors alpha and beta in human articular chondrocytes. Osteoarthritis Cartilage 1999. [PMID: 10558854 DOI: 10.1053/joca.19990260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To investigate the gene expression of estrogen receptor (ER) alpha and ERbeta in human articular chondrocytes. METHODS 16 articular cartilage specimens were obtained from 15 patients during surgery. Three of the specimens were from men and 13 from women; three from hip joints and 13 from knee joints; four were normal and 12 showed osteoarthritic cartilage. Total RNA was extracted from the articular chondrocytes and the expression of both ERalpha and ERbeta genes was investigated by the reverse transcription-polymerase chain reaction (RT-PCR) method. RESULTS Gene expressions of ERalpha were detected in all specimens and those of ERbeta were found in 15 specimens by the RT-PCR method. There was a significant correlation between the amounts of ERalpha and ERbeta. Expression levels of both genes were significantly higher in men than in women. There were no significant differences in the expression levels of both ER genes between the hip and knee joint sites, nor between normal and osteoarthritic tissues. CONCLUSION This study is to our knowledge the first to demonstrate the gene expression of both ERalpha and ERbeta in human articular chondrocytes. Since there are some functional differences between the two receptors, the effects of estrogen on cartilage metabolism should be elucidated by two different receptor mechanisms.
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Affiliation(s)
- T Ushiyama
- The Department of Orthopedic Surgery, Shiga University of Medical Science, Seta, Otsu, 520-2192, Japan
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Shichikawa K, Inoue K, Hirota S, Maeda A, Ota H, Kimura M, Ushiyama T, Tsujimoto M. Changes in the incidence and prevalence of rheumatoid arthritis in Kamitonda, Wakayama, Japan, 1965-1996. Ann Rheum Dis 1999; 58:751-6. [PMID: 10577961 PMCID: PMC1752814 DOI: 10.1136/ard.58.12.751] [Citation(s) in RCA: 81] [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: 11/04/2022]
Abstract
OBJECTIVE To evaluate secular trends in the incidence and prevalence of rheumatoid arthritis (RA) in Japan. METHODS The incidence and prevalence of RA were determined in a longitudinal population based study in the Kamitonda district, Wakayama, Japan, from 1965 to 1996. RESULTS In the study area consisting of about 3000 inhabitants, 16 incident cases, satisfying definite RA by the Rome criteria were detected during the study period. The age and sex adjusted incidence in both men and women combined and the age adjusted incidence in women significantly decreased (p<0.025 and p<0. 01, respectively). The age and sex adjusted prevalence in all inhabitants tended to decrease (p<0.1), and the age adjusted prevalence in women significantly declined (p<0.025). In men, however, neither incidence nor prevalence showed significant change. CONCLUSIONS The decline of incidence and prevalence of female RA may be reducible to some environmental changes preferentially occurring more obviously in Japanese women than in men. Because the use of oral contraceptives has been extremely low in Japan, the decline should be explained by other factors.
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Affiliation(s)
- K Shichikawa
- Yukioka Hospital, 2-2-3, Ukita Kita-ku,Osaka 530-0021, Japan
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Hirano Y, Ushiyama T, Suzuki K, Fujita K. Clinical application of an in vitro chemosensitivity test, the Histoculture Drug Response Assay, to urological cancers: wide distribution of inhibition rates in bladder cancer and renal cell cancer. Urol Res 1999; 27:483-8. [PMID: 10651138 DOI: 10.1007/s002400050139] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To investigate the variations in chemosensitivity of individual cancers, we performed an in vitro chemosensitivity test, the Histoculture Drug Response Assay (HDRA), on fresh biopsied or surgical specimens. They were 26 bladder cancers and 19 renal cell cancers. Ten anticancer drugs were tested. By prolonging the drug exposure time to 7 days, we obtained reliable results. The mean inhibition rates (IRs) were higher for bladder cancer than for renal cell cancer, and the difference was significant for cisplatin, carboplatin, vinblastine, mitomycin C, and adriamycin. There was no significant correlation between the histological grade of the tumor and HDRA sensitivity. IR values showed a wide distribution and cancers could be classified into two groups of sensitive and resistant. This was especially true for 4-hydroxy-ifosfamide. Three bladder cancer patients with evaluable lesions were treated with drugs selected on the basis of the results of the HDRA. One patient achieved a complete response and the other patients showed a partial response. Our results suggest that chemosensitivity is independent of the clinicopathological classification of cancer, and that the HDRA may be useful for selecting the effective anticancer drug for patients with urological cancer.
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Affiliation(s)
- Y Hirano
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu City, Japan
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Abstract
To identify the sociodemographic and lifestyle factors related to development of aseptic loosening after a cemented total hip arthroplasty (THA), 151 consecutive primary THAs performed at a single hospital in a rural district of Japan, at a mean follow-up of 7.5 years, were reviewed. Based on the medical records collected during hospital admission for THA, in which sociodemographic and lifestyle backgrounds had been recorded by the nurse, answers regarding residence, education, employment, engagement in agricultural work, marital status, family members living together, religion, recreational activity, smoking, and alcohol intake were analyzed in relation to the development of loosening, using a multivariate Cox proportional hazards model. With adjustment for cementing technique, diagnosis, age, and sex, agricultural work had a significant relation with prosthetic loosening (relative risk=2.85, P=0.03). Restriction of physical work in agriculture for patients undergoing THA should be considered.
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Affiliation(s)
- K. Inoue
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan e-mail: Tel.: +81–77–548–2252, Fax: +81–77–548–2254, , , , JP
| | - T. Ushiyama
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan e-mail: Tel.: +81–77–548–2252, Fax: +81–77–548–2254, , , , JP
| | - Y. Tani
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan e-mail: Tel.: +81–77–548–2252, Fax: +81–77–548–2254, , , , JP
| | - S. Hukuda
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan e-mail: Tel.: +81–77–548–2252, Fax: +81–77–548–2254, , , , JP
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Abstract
OBJECTIVE To investigate the gene expression of estrogen receptor (ER) alpha and ERbeta in human articular chondrocytes. METHODS 16 articular cartilage specimens were obtained from 15 patients during surgery. Three of the specimens were from men and 13 from women; three from hip joints and 13 from knee joints; four were normal and 12 showed osteoarthritic cartilage. Total RNA was extracted from the articular chondrocytes and the expression of both ERalpha and ERbeta genes was investigated by the reverse transcription-polymerase chain reaction (RT-PCR) method. RESULTS Gene expressions of ERalpha were detected in all specimens and those of ERbeta were found in 15 specimens by the RT-PCR method. There was a significant correlation between the amounts of ERalpha and ERbeta. Expression levels of both genes were significantly higher in men than in women. There were no significant differences in the expression levels of both ER genes between the hip and knee joint sites, nor between normal and osteoarthritic tissues. CONCLUSION This study is to our knowledge the first to demonstrate the gene expression of both ERalpha and ERbeta in human articular chondrocytes. Since there are some functional differences between the two receptors, the effects of estrogen on cartilage metabolism should be elucidated by two different receptor mechanisms.
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Affiliation(s)
- T Ushiyama
- The Department of Orthopedic Surgery, Shiga University of Medical Science, Seta, Otsu, 520-2192, Japan
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Huang J, Ushiyama T, Inoue K, Mori K, Hukuda S. Possible association of CYP17 gene polymorphisms with the onset of rheumatoid arthritis. Clin Exp Rheumatol 1999; 17:721-4. [PMID: 10609072] [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: 02/14/2023]
Abstract
OBJECTIVE The etiologic role of sex hormones in rheumatoid arthritis (RA) has been discussed. Cytochrome P450c 17 alpha (CYP17) regulates steroidogenesis and the restriction fragment length polymorphisms (RFLPs) of the CYP17 gene are related to serum sex hormone production. In this study, the relationship between CYP17 gene RFLPs and RA was investigated. METHODS Genomic DNA was extracted from the peripheral blood of 91 male and 285 female patients with RA, as well as from 380 male and 579 female controls, and the RFLPs of the CYP17 gene (denoted as the A1 and A2 alleles) were determined. Clinical variables were recorded for the RA patients. RESULTS There were no significant differences in CYP17 genotype distribution between the male RA patients and male controls, nor between the female RA patients and female controls. RA patients with the A2 allele tended to develop the disease at a younger age than those without (in men 50.1 vs 54.7 yrs, p = 0.15; in women 43.9 vs 47.4 yrs, p = 0.038). In women, having the A2 allele was a weak protective factor against developing RA at an older age (odds ratio: 0.63, 95% confidence interval: 0.41-0.95, p = 0.026). CONCLUSION The RFLPs of the CYP17 gene may constitute a disease modifying factor through sex hormone production.
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Affiliation(s)
- J Huang
- Department of Orthopedic Surgery, Shiga University of Medical Science, Otsu, Japan
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Kawasaki T, Ushiyama T, Ueyama H, Inoue K, Mori K, Ohkubo I, Hukuda S. Polymorphic CAG repeats of the androgen receptor gene and rheumatoid arthritis. Ann Rheum Dis 1999; 58:500-2. [PMID: 10419869 PMCID: PMC1752923 DOI: 10.1136/ard.58.8.500] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [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: 11/04/2022]
Abstract
OBJECTIVE In view of the possible role of androgens in the pathogenesis of rheumatoid arthritis (RA), this study investigated the association between repeat lengths of CAG microsatellites of the androgen receptor (AR) gene and RA. METHODS The number of CAG repeats in exon 1 of the AR gene was determined in 90 men and 276 women with RA, as well as in 305 male and 332 female controls. RESULTS The male RA patients tended to have shorter repeats than the male controls (22.5 versus 23.1, p=0.07), whereas the female RA patients had similar repeats to the female controls (22.7 versus 22.9, p=0.17). Patients of both sexes were divided into younger and older age at onset groups, and compared with younger and older controls. Younger onset male RA patients had significantly shorter CAG repeat lengths than the younger male controls (21.8 versus 23.2, p=0.007) or the older onset male RA patients (21.8 versus 23.2, p=0.04). Older onset male RA and both younger and older onset female RA patients had similar CAG repeat lengths when compared with their controls. Neither seropositivity nor rheumatoid nodule positivity had a significant relation with CAG repeat lengths. CONCLUSION Shorter CAG repeats of the AR gene, presenting high levels of transactivation activity, are related to younger age onset male RA, suggesting the possible role of androgens as a modulating factor.
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Affiliation(s)
- T Kawasaki
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Seta, Otsu, 520-2192, Japan
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Suzuki K, Ushiyama T, Ihara H, Kageyama S, Mugiya S, Fujita K. Complications of laparoscopic adrenalectomy in 75 patients treated by the same surgeon. Eur Urol 1999; 36:40-7. [PMID: 10364654 DOI: 10.1159/000019925] [Citation(s) in RCA: 53] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We analyzed the complications of endoscopic adrenalectomy. METHODS We retrospectively reviewed the operative and postoperative complications among 75 patients with adrenal tumors who underwent endoscopic adrenalectomy by the same surgeon. RESULTS Five patients (6.7%) were converted to open surgery. Of these, there were 2 with metastatic adrenal carcinoma, and 1 with adrenal tuberculosis. A total of 21 patients (28%) had 24 complications (32%). There was no mortality. As for access and pneumoperitoneum-related complications, 5 cases of subcutaneous emphysema and 3 of radiating shoulder pain occurred. Intraoperative complications included 2 cases of vascular injury, 2 of organ injury, and 4 of massive bleeding (>500 ml). Postoperative complications included 2 cases of mild paralytic ileus, 2 asthma, and 1 each of angina, wound infection, retroperitoneal hematoma, and contralateral atelectasis. Except for the patients with adrenal malignancy and adrenal tuberculosis, 71% of the complications occurred among the initial 25 patients with laparoscopic adrenalectomy and 80% occurred in the initial 10 retroperitoneoscopic patients. CONCLUSION Although endoscopic adrenalectomy is a valuable alternative to open surgery, it should be done by a skilled laparoscopist in patients with adrenal inflammatory lesions or malignancy. Careful patient selection and correct choice of surgical approach according to the tumor size and the patient's condition are the most important points for avoiding the complications of laparoscopic adrenalectomy.
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Affiliation(s)
- K Suzuki
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
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Ushiyama T, Suzuki K, Kageyama S, Fujita K, Oki Y, Yoshimi T. RE: A CASE OF CUSHING'S SYNDROME DUE TO ADRENOCORTICAL CARCINOMA WITH RECURRENCE 19 MONTHS AFTER LAPAROSCOPIC ADRENALECTOMY; RE. J Urol 1999. [DOI: 10.1016/s0022-5347(05)68969-0] [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: 11/17/2022]
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Abstract
We investigated gene expression of antiinflammatory mediators in the interfacial membranes retrieved at hip revision arthroplasty using reverse transcription-polymerase chain reaction (RT-PCR). Levels of RT-PCR products were compared with those of synovial tissue from patients with osteoarthrosis or rheumatoid arthritis. Antiinflammatory mediators such as type II interleukin (IL)-1 receptor, IL-4, IL-10, IL-1 receptor antagonist, and transforming growth factor-beta 1 (TGF-beta 1) were expressed in the interfacial membrane. In interfacial tissue, the level of IL-10 was lower, but that of the IL-1 receptor antagonist higher than in diseased synovial tissue.
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Affiliation(s)
- M Nabae
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Japan
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Hirano Y, Ushiyama T, Suzuki K, Fujita K. [Interferons alpha-2a and gamma increase the antitumor activity, detected by histoculture drug response assay, of doxifluridine against clinical renal cell cancers]. Gan To Kagaku Ryoho 1999; 26:557-9. [PMID: 10097758] [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: 02/11/2023]
Affiliation(s)
- Y Hirano
- Dept. of Urology, Hamamatsu University School of Medicine
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Mugiya S, Suzuki K, Ushiyama T, Fujita K. Combined Treatment of Staghorn Calculi by Fiberoptic Transurethral Nephrolithotripsy and Extracorporeal Shock Wave Lithotripsy. J Urol 1999. [DOI: 10.1016/s0022-5347(01)62031-7] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- S. Mugiya
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K. Suzuki
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T. Ushiyama
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K. Fujita
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Ushiyama T, Mori K, Inoue K, Huang J, Nishioka J, Hukuda S. Association of oestrogen receptor gene polymorphisms with age at onset of rheumatoid arthritis. Ann Rheum Dis 1999; 58:7-10. [PMID: 10343533 PMCID: PMC1752749 DOI: 10.1136/ard.58.1.7] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [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: 11/04/2022]
Abstract
OBJECTIVE In view of the possible role of oestrogens in the pathogenesis of rheumatoid arthritis (RA), this study investigated the association between oestrogen receptor (OR) gene polymorphisms and RA. METHODS Pvu II and Xba I restriction fragment length polymorphisms of the OR gene were analysed in 70 male and 240 female patients with RA, and in 300 male and 350 female controls. The absence or presence of restriction sites were represented as P, p (Pvu II) or X, x (Xba I). The distribution of OR genotypes was compared between the RA and control subjects by sex. RA patients were divided into subgroups according to their OR genotypes, then the age at onset, seropositivity, and rheumatoid nodule positivity were compared between the subgroups. RESULTS The OR genotype frequency of distribution did not have significant differences between the male RA and male controls nor between the female RA and female controls. In women with RA, there was a significant difference of age at onset between the subgroups (uncorrected p = 0.047, corrected p = 0.94). Female patients with the OR genotype PPxx (homozygote of Px) tended to have developed RA at a younger age, whereas those with PPXX and ppxx (lack of Px haplotype) developed RA at an older age. In men with RA, there was no association between the OR genotype and age at onset. In seropositivity and rheumatoid nodule positivity, there was no significant difference between subgroups for either sex. CONCLUSIONS Some variants of the OR gene are related to the onset of RA in women in certain age periods, suggesting the role of the interaction between the OR gene and serum concentrations of oestrogen at the onset of the disease.
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Affiliation(s)
- T Ushiyama
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Otsu, Japan
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Hirano Y, Suzuki K, Saisu K, Watanabe T, Kageyama S, Ushiyama T, Fujita K. Retroperitoneoscopy-assisted total nephroureterectomy combined with transurethral extraction of the ureter. MINIM INVASIV THER 1999. [DOI: 10.3109/13645709909153148] [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: 11/13/2022]
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Watanabe T, Suzuki K, Kageyama S, Ushiyama T, Fujita K, Maruyama Y. Laparoscopy-assisted radical nephrectomy for renal cell carcinoma in patients on long-term hemodialysis: report of 2 patients. Int J Urol 1998; 5:601-3. [PMID: 9855131 DOI: 10.1111/j.1442-2042.1998.tb00419.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/26/2022]
Abstract
We successfully performed a laparoscopy-assisted radical nephrectomy for renal cell carcinoma in 2 patients on long-term hemodialysis. Both tumors were incidentally discovered on screening by abdominal CT scanning. There were no complications during the operation or in the postoperative period, and both patients resumed normal activities by the fifth postoperative day. A laparoscopic-assisted radical nephrectomy may be useful for the treatment of renal cell carcinoma in hemodialysis patients.
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Affiliation(s)
- T Watanabe
- Department of Urology, Hamamatsu University School of Medicine, Japan
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Hirano Y, Takayama T, Ushiyama T, Suzuki K, Fujita K. [The correlation between thymidine phosphorylase activity of renal cancer cells and the chemosensitivity to 5-FU and 5'-DFUR]. Gan To Kagaku Ryoho 1998; 25:1779-81. [PMID: 9757207] [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: 02/08/2023]
Affiliation(s)
- Y Hirano
- Dept. of Urology, Hamamatsu University School of Medicine
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Hirano Y, Fujita K, Suzuki K, Ushiyama T, Ohtawara Y, Tsuda F. Telomerase activity as an indicator of potentially malignant adrenal tumors. Cancer 1998; 83:772-6. [PMID: 9708944] [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: 02/08/2023]
Abstract
BACKGROUND Telomerase is an enzyme that adds repeated telomere sequences to the ends of chromosome arms. It helps maintain both the length of telomere and infinite cell proliferation. In recent years, telomerase activity has been considered an important characteristic that differentiates between normal and cancerous cells. Because the authors often encountered difficulties in distinguishing between benign and malignant adrenal tumors, they investigated whether the expression of telomerase activity could distinguish potentially malignant adrenal tumors. METHODS The authors examined telomerase activity in 48 samples of adrenal tumor tissue and 27 samples of adjacent normal adrenal tissue. All samples were obtained from 48 patients who underwent surgery at Hamamatsu University Hospital in Hamamatsu, Japan. Based on the clinical and postoperative pathologic examinations, 45 samples were diagnosed as benign and 3 were diagnosed as malignant. Telomerase activity was examined using a telomerase repeat amplification protocol (TRAP) assay. RESULTS Of the 48 adrenal tumor samples, 7 (14.6%) had telomerase activity. All adjacent normal adrenal tissues were negative for telomerase activity. Of the telomerase positive samples, two were clinically known adrenocortical carcinoma, and another was metastatic adrenal tumor from lung carcinoma. Four other telomerase positive samples were diagnosed as benign after clinical and initial pathologic examinations. However, two of the patients from whom these samples were taken developed metastatic lesions after adrenalectomy. CONCLUSIONS A telomerase assay of adrenal tumors may help predict their malignant potential.
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Affiliation(s)
- Y Hirano
- Department of Urology, Hamamatsu University School of Medicine, Japan
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