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Yasukawa S, Tanaka T, Yamane K, Kano R, Sakata M, Noma H, Furukawa TA, Kishimoto T. A chatbot to improve adherence to internet-based cognitive-behavioural therapy among workers with subthreshold depression: a randomised controlled trial. BMJ Ment Health 2024; 27:e300881. [PMID: 38199786 PMCID: PMC10806906 DOI: 10.1136/bmjment-2023-300881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/15/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND Internet-based cognitive-behavioural therapy (iCBT) is effective for subthreshold depression. However, iCBT has problems with adherence, especially when unaccompanied by human guidance. Knowledge on how to enhance adherence to iCBT without human involvement can contribute to improving the effectiveness of iCBT. OBJECTIVE This is an implementation study to examine the effect of an automated chatbot to improve the adherence rate of iCBT. METHODS We developed a chatbot to increase adherence to an existing iCBT programme, and a randomised controlled trial was conducted with two groups: one group using iCBT plus chatbot (iCBT+chatbot group) and one group not using the chatbot (iCBT group). Participants were full-time employees with subthreshold depression working in Japan (n=149, age mean=41.4 (SD=11.1)). The primary endpoint was the completion rate of the iCBT programme at 8 weeks. FINDINGS We analysed data from 142 participants for the primary outcome. The completion rate of the iCBT+chatbot group was 34.8% (24/69, 95% CI 23.5 to 46.0), that of the iCBT group was 19.2% (14/73, 95% CI 10.2 to 28.2), and the risk ratio was 1.81 (95% CI 1.02 to 3.21). CONCLUSIONS Combining iCBT with a chatbot increased participants' iCBT completion rate. CLINICAL IMPLICATIONS Encouraging messages from the chatbot could improve participation in an iCBT programme. Further studies are needed to investigate whether chatbots can improve adherence to the programme in the long term and to assess their impact on depression, anxiety and well-being. TRIAL REGISTRATION NUMBER UMIN000047621.
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Affiliation(s)
- Sakiko Yasukawa
- Technology Development Laboratories, Sony Corporation, Tokyo, Japan
| | - Taku Tanaka
- Technology Development Laboratories, Sony Corporation, Tokyo, Japan
| | - Kenji Yamane
- Technology Development Laboratories, Sony Corporation, Tokyo, Japan
| | - Ritsuko Kano
- Technology Development Laboratories, Sony Corporation, Tokyo, Japan
| | - Masatsugu Sakata
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Toshi A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
| | - Takuya Kishimoto
- Technology Development Laboratories, Sony Corporation, Tokyo, Japan
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Hara H, Yasukawa S, Furue M, Yoshida H. P145 Innate immune activation through ITAM-Syk-CARD9 signaling coupling to inflammasome is essential for the development of contact allergy to organic chemical allergens. Cytokine 2012. [DOI: 10.1016/j.cyto.2012.06.245] [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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3
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Basak G, Yasukawa S, Alfaro A, Miniev B, Carrier E. Human Embryonic Stem Cells-Derived Hemangioblast Express HLA-Antigens. Biol Blood Marrow Transplant 2009. [DOI: 10.1016/j.bbmt.2008.12.266] [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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Ueno G, Yamamoto M, Kumasaka T, Ida K, Kanda H, Yasukawa S, Sasaki K, Ishikawa T. RIKEN structural genomics beamlines at SPring-8/operation system for high throughput data collection. Acta Crystallogr A 2002. [DOI: 10.1107/s0108767302097052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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5
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Morimoto S, Uehara M, Yamauchi T, Yasukawa S, Ohkawa T. Dissolution of residual microfragments with citrate therapy after extracorporeal shock wave lithotripsy. Int J Urol 1996; 3:S85-7. [PMID: 24449950 DOI: 10.1111/j.1442-2042.1996.tb00352.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Residual microfragments after ESWL were studied for their presence and for possibility of dissolution with citrate therapy. Among 123 patients with renal stones who became stone-free following ESWL, a computed tomogram (CT) identified remaining microfragments within the treated kidney in 31.7% of the patients, even though stone fragments were not detectable on ordinary x-ray (KUU). The experiments, in which calcium oxalate stone fragments collected after ESWL were incubated in buffer solutions with citrate 0 to 4 mmol/L, showed that citrate dissolved the stone fragments. Using human urine as a solution, the dissolving effect was greater in spot urines after alkali citrate administration than in control urines. Eighteen patients with microfragments underwent a follow-up CT 3 months later. The results showed that the microfragments had disappeared in 6 of 11 (54.5%) patients who had been taking alkali citrate, whereas microfragments remained unchanged in all 5 patients without medication. Our results suggest that citrate therapy would be advisable as a prophylaxis for stone recurrence especially after ESWL treatment.
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Hirano A, Yasukawa S, Ohkawa T, Takenaka T, Maeda J, Ooshima A. Analysis of lymphocyte subsets in a renal allograft recipient infected with human immunodeficiency virus. Br J Urol 1994; 74:283-7. [PMID: 7953255 DOI: 10.1111/j.1464-410x.1994.tb16611.x] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To study the change in lymphocyte subsets of a renal allograft recipient who acquired human immunodeficiency virus (HIV) infection. PATIENT AND METHODS A 53-year-old Japanese man who acquired HIV infection at the time of renal transplantation and died from opportunistic infection 3 years later was studied. Lymphocyte subsets were examined serially throughout his clinical course. RESULTS The numbers of CD4 positive cells were severely decreased but those of CD8 positive cells were stable; the CD 4/8 ratio was extremely low. The numbers of B cells were also decreased but production of immunoglobulin was increased. In spite of this immunosuppressive state, graft rejection was noted when the patient's immunosuppressive medication was reduced. CONCLUSION The lymphocyte subsets of renal transplant patients with HIV infection should be closely observed, as should the nature and timing of opportunistic infection in relation to transplantation, and the administration of immunosuppressive medication.
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Affiliation(s)
- A Hirano
- Department of Urology, Wakayama Medical College, Japan
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7
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Morita T, Kitamura S, Yasukawa S, Yoshida T. [Renal actinomycosis: a case report]. Hinyokika Kiyo 1994; 40:337-9. [PMID: 8191974] [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: 01/29/2023]
Abstract
A 56-year-old male presented with a history of dull pain in the abdomen, accompanied by anorexia and weight loss. On examination, he had a moderate tenderness in the right kidney region. Radiological investigation could not deny renal tumor, and the right kidney was removed. Microscopically, characteristic colonies of actinomyces were seen. Preoperatively it is difficult to differentiate renal actinomycosis and renal tumor. Removal of the involved kidney followed by appropriate antibiotic therapy may be promptly curative.
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Affiliation(s)
- T Morita
- Department of Urology, Kishiwada City Hospital
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8
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Morita T, Kitamura S, Yasukawa S. [Retroperitoneal fibrosis suspected to be ureteral tumor because of its localization at the unilateral distal ureter: a case report]. Hinyokika Kiyo 1992; 38:1147-50. [PMID: 1481773] [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: 12/27/2022]
Abstract
The patient was a 32-year-old female with the complaint of right flank pain. Drip infusion pyelogram showed right hydronephrosis and retrograde urogram demonstrated a marked stenosis about 2 cm in length at the right distal ureter. The passage of the ureteral catheter and the contrast medium through the narrowing portion of the ureter could not be performed. The abdominal computerized tomographic (CT)-scan disclosed renal subcapsular urinoma, although no abnormal findings which caused ureteral stenosis were revealed. A suspicion of right ureteral tumor was entertained and total nephroureterectomy was performed. Histopathological diagnosis was the idiopathic retroperitoneal fibrosis, which involved the right ureter. One hundred and fifty five cases of idiopathic retroperitoneal fibrosis in the Japanese literature were reviewed.
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Affiliation(s)
- T Morita
- Department of Urology, Kishiwada City Hospital
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Akiba T, Yamazaki Y, Yasukawa S, Yuno S, Yoshida T, Sakurai K. [A case of congenital cystic adenomatoid malformation of the lung in 18-year-old male]. Nihon Kyobu Geka Gakkai Zasshi 1992; 40:161-4. [PMID: 1564351] [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: 12/27/2022]
Abstract
A case of congenital cystic adenomatoid malformation (CCAM) of the lung is reported. The patient had recurrent pneumonia after the second day of delivery, and was admitted to our hospital, at the age of 18. He received right pneumonectomy under the diagnosis of CCAM. The resected lung was composed of multiple cysts with thin wall measuring 20-30 mm in diameter. Microscopic examination showed that the cyst wall was lined by ciliated columnar epithelium, and infiltration of chronic inflammatory cells was found in the submucosal layer. Bronchial cartilage was absent through the specimen. These microscopic findings are identical with those of CCAM, which is very rare in this age.
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Affiliation(s)
- T Akiba
- First Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
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10
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Yasukawa S, Uehara M, Yamauchi T, Morimoto S, Ebisuno S, Ohkawa T. [Citrate as an inhibitor of stone formation--with reference to intestinal citrate absorption and the influence of citrate on intestinal calcium absorption]. Hinyokika Kiyo 1991; 37:1103-6. [PMID: 1755398] [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: 12/28/2022]
Abstract
The response of serum citrate to the oral citrate load was studied in seven healthy subjects. Serum citrate was significantly elevated from 15 to 60 min post-load with some individual variations. In 27 stone-formers serum citrate and the response to the oral citrate administration was studied and compared with the results obtained on healthy subjects. The serum citrate concentration of stone-formers was 1.99 +/- 0.49 mg/dl as compared to 1.61 +/- 0.35 mg/dl in healthy subjects. After citrate administration serum citrate increased significantly in both groups, but no significant difference was shown in response to the oral citrate load between these two groups (3.44 +/- 0.94 mg/dl in stone-formers, 3.16 +/- 0.38 mg/dl in healthy subjects). In Sprague-Dawley rats each weighing about 200 g urinary citrate and calcium excretion were studied after administration of sodium citrate or calcium chloride or both. The concomitant equimolar administration of sodium citrate and calcium chloride did not have significant influence on urinary citrate or calcium excretion as compared when citrate or calcium was given alone. However, the calcium excretion was significantly decreased with the administration of citrate and calcium ata molar ratio of 1:2.
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Affiliation(s)
- S Yasukawa
- Department of Urology, Wakayama Medical College
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11
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Morita T, Yasukawa S, Matsumoto M, Shinka T, Ohkawa T. [Congenital perineal lipoma with accessory scrotum: a case report]. Hinyokika Kiyo 1991; 37:647-9. [PMID: 1892016] [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: 12/29/2022]
Abstract
A tumor mass covered with scrotum-like skin on its tip was found on the perineal region of 3-year-old boy since his birth. The mass was diagnosed as congenital lipoma, which was resected, because of its gradual enlargement. Histopathological findings of the tumor indicated perineal lipoma, and the scrotum-like portion was diagnosed as an accessory scrotum. In the Japanese literature, 7 congenital perineal lipomas (6 males, 1 female) have been reported and all male cases except 1 case (no description about scrotum) were accompanied with an accessory scrotum. We conclude that there may be a close relationship between congenital perineal lipoma and accessory scrotum.
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Affiliation(s)
- T Morita
- Department of Urology, Wakayama Medical College
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12
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Abstract
A series of 182 calcium stone formers with idiopathic hypercalciuria underwent treatment with rice bran for 1 to 94 months. Urinary calcium excretion was considerably reduced, but there was some increase in urinary phosphate and oxalate. Urinary excretion of magnesium and uric acid, serum calcium, magnesium, phosphate, uric acid, parathyroid hormone (PTH) and ALP was unaffected. There were no obvious changes in serum iron, zinc and copper even when patients were treated for long periods. Rice bran was well tolerated in almost all cases and there were no serious side effects; 49 patients have undergone treatment for more than 3 years (average duration of administration 5.09 years). The frequency of new stone formation was drastically reduced (individual stone formation rate (no./year) from 0.720 +/- 0.533 to 0.125 +/- 0.204; group stone formation rate (no./patient-year) from 0.721 to 0.120) compared with the 3-year period before treatment. During treatment, 61.2% of patients remained in remission. Although rice bran therapy should be effective in correcting absorptive hypercalciuria, there may be limits to the overall ability of rice bran monotherapy to prevent recurrence.
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Affiliation(s)
- S Ebisuno
- Department of Urology, Wakayama Medical College, Japan
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Abstract
Electrostatic interaction of microcapsules with guinea-pig polymorphonuclear leucocytes was investigated at different ionic strengths of the medium through measurements of the degree of phagocytosis by the cells of microcapsules. At any ionic strength, the interaction exhibited a maximum when the surface potential of microcapsules was equal to that of the leucocytes to make phagocytosis of microcapsules by the cells minimum. The experimental findings were analyzed by a novel model for the electrostatic interaction between ion-penetrable membranes. In this analysis, it was assumed that the leucocytes have an area (or areas) which permits cations to partition much more into the membrane than anions on their surface to reduce the electric potential of the area.
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Affiliation(s)
- S Yasukawa
- Faculty of Pharmaceutical Sciences, Science University of Tokyo, Japan
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14
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Yasukawa S. [Medical management for the prevention of the recurrence of urolithiasis--with special recurrence to the patients who underwent percutaneous nephrolithotripsy (PNL) or extracorporeal shock wave lithotripsy (ESWL)]. Hinyokika Kiyo 1989; 35:2107-13. [PMID: 2618911] [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: 01/01/2023]
Abstract
Questionnaires about stone recurrence after treatment with percutaneous nephrolithotripsy (PNL) or extracorporeal shock wave lithotripsy (ESWL) were sent to 11 hospitals in the central section of Japan. We received 255 replies on PNL cases and 157 replies on ESWL cases. These patients were evaluated for the recurrence of renal stones and the enlargement of residual stone fragments. The effect of the medical management for the prevention of recurrent stone disease on postoperative recurrence rate was also evaluated. The average follow-up period of patients treated with PNL was 21.6 months, and 18.5 months for patients treated with ESWL. In patients who underwent PNL, 25 of 162 patients (15.4%) who were treated completely without any residual stones have suffered from new stones. The residual stone or fragments enlarged in 14 of the 93 patients (15.1%) who had residual stones or fragments after the treatment. The recurrence rate was significantly higher for the recurrent stone former than the single stone former. The recurrence rate for the patients who had multiple stones, staghorn calculi and metabolic disorders such as hypercalciuria also had a high incidence. Patients who received medical treatment for the prevention of stone recurrence had a lower recurrence rate than the group not treated. Especially among the patients with hypercalciuria, the recurrence rate of stone disease in the treatment group was significantly lower than that in the group not treated.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- S Yasukawa
- Department of Urology, Wakayama Medical College
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15
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Yasukawa S, Aoshi H, Kyoku I, Uekado Y, Ohkawa T. [Renal cell carcinoma associated with tuberous sclerosis: a case report]. Hinyokika Kiyo 1989; 35:2135-8. [PMID: 2694834] [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: 01/02/2023]
Abstract
Renal angiomyolipoma associated with tuberous sclerosis is well known. On the other hand, few cases of renal cell carcinoma in connection with tuberous sclerosis have been reported. We report a patient with tuberous sclerosis whose kidney was involved with renal cell carcinoma. A 18-year-old woman was first admitted in August 1987 for evaluation of left renal tumor. Diagnosis of tuberous sclerosis was made when she was 11 years old on the basis of mental retardation, papules on her face, seizures, white leaf-shaped macules and periventricular calcifications. Computerized tomographic scan demonstrated a large mass arising from the left kidney and small masses in the right kidney. Angiography confirmed bilateral hypervascular renal tumors. On these bases, a clinical diagnosis of bilateral renal angiomyolipomas was made and surgical treatment of the left kidney was recommended because of its large size. However, her parents did not permit treatment until March, 1988. Finally, left nephrectomy of 4,750 g was performed and histological examination revealed renal cell carcinoma with clusters of spindle cells. In the literature available to us, we found twelve reports of malignant renal tumors associated with tuberous sclerosis including five renal cell carcinomas in Japan.
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Affiliation(s)
- S Yasukawa
- Department of Urology, Wakayama Medical College
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Yoshida M, Morimoto S, Uekado Y, Yasukawa S, Aoshi H, Yoshida T, Ebisuno S, Ohkawa T. [Clinical studies on urinary tissue polypeptide antigen (TPA): problems and improvement in determination]. Hinyokika Kiyo 1989; 35:217-23. [PMID: 2735232] [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: 01/02/2023]
Abstract
The reliability of measurement of urinary TPA using a Prolifigen TPA kit (Sangtec, Sweden) was investigated, and an improved method for stabilizing TPA was tested. Samples were filtrated with a cellulose nitrate membrane filter to remove impurities as a possible cause of a high false positive rate which has been a problem in urinary TPA measurement. Serum TPA and Tween 40-treated urinary TPA was not adsorbed by the filter, whereas TPA in the non-treated urine showed a marked affinity to the filter. This shows the instability of TPA in the original urine, and the impropriety of filtration as a measure of purification of urine samples. The dilution test of urine and the standard TPA, and the recovery test of the standard TPA added to 6 different urine samples showed reasonable results only when the samples were treated with Tween 40; otherwise the values were lower than expected. Thirty-four spot urine samples were tested to examine the change in TPA value during the storage for 24 hours. TPA values decreased when urine was stored at room temperature, but this change was prevented by treatment of urine with Tween 40.
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Affiliation(s)
- M Yoshida
- Department of Urology, Wakayama Medical College
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17
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Morimoto S, Yoshida M, Yasukawa S, Uekado Y, Yoshida T, Aoshi H, Ebisuno S, Ohkawa T. [Improvement of the determination of urinary tissue polypeptide antigen (TPA) and the clinical study in bladder cancer patients]. Nihon Hinyokika Gakkai Zasshi 1988; 79:1954-61. [PMID: 3230746 DOI: 10.5980/jpnjurol1928.79.12_1954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Ebisuno S, Yoshida T, Yasukawa S, Fukatani T, Minakata S, Uehara M, Morimoto S, Ohkawa T. [Study on metastable limit of calcium oxalate in whole urine using an aggregometer]. Nihon Hinyokika Gakkai Zasshi 1988; 79:1646-52. [PMID: 3251098 DOI: 10.5980/jpnjurol1928.79.10_1646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Kyoku I, Fukatani T, Yasukawa S, Aoshi H, Hirano A, Komura T, Yamauchi T. [Foreign body in the kidney: report of a case]. Hinyokika Kiyo 1988; 34:1795-8. [PMID: 3072873] [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: 01/04/2023]
Abstract
A 49-year-old man was admitted with the suspicion of renal foreign body. A fragment of wire rope was penetrated from his right lumbar region while working. Drip infusion pyelography and computed tomography films revealed a linear metallic object in the region of the right kidney. The foreign body was successfully extracted from the right renal parenchyma. The 38 cases of foreign bodies in the upper urinary tract including 12 in the renal parenchyma found in the literature are reviewed.
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Affiliation(s)
- I Kyoku
- Department of Urology, Wakayama Medical College
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Ohkawa T, Ebisuno S, Morimoto S, Yasukawa S, Sonoda T, Koide T, Oka T, Aso Y, Higashihara E, Kitagawa R. [Citrate (CG-120) therapy in urolithiasis. 2. Effect on urinary and serum biochemistry ]. Hinyokika Kiyo 1988; 34:918-31. [PMID: 3051946] [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: 01/03/2023]
Abstract
The long-term effects of citrate therapy (CG-120, 3 g/day or 4 g/day) were examined in 398 patients with upper urinary tract calculi. We studied the influence of citrate therapy on urinary and blood biochemistry in 353 of them. CG-120 caused a sustained increase in urinary citrate, urinary pH and potassium, but no substantial or significant changes in other urinary parameters (uric acid, phosphate, oxalate, sodium, chloride and urine volume). Although urinary calcium decreased significantly up to the 24th week, it did not change significantly there after and it tended to increase at the 54th week. Urinary creatinine excretion decreased after 34 weeks of administration, but this phenomenon could not be explained, because the level of blood urea nitrogen and serum creatinine was not elevated in any case before administration. There were no changes in the serum calcium, magnesium, phosphate, uric acid, sodium, potassium or chloride level.
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Affiliation(s)
- T Ohkawa
- Department of Urology, Wakayama Medical College
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Ohkawa T, Ebisuno S, Morimoto S, Yasukawa S, Sonoda T, Koide T, Oka T, Aso Y, Higashihara E, Kitagawa R. [Citrate (CG-120) therapy for urolithiasis. 1. Clinical effects]. Hinyokika Kiyo 1988; 34:905-17. [PMID: 3051945] [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: 01/03/2023]
Abstract
Urinary citrate is an important determinant for crystallization of calcium salts, and recently oral administration of citrate has been suggested to be clinically useful in the management of renal stone disease. The effect of CG-120, a citrate compound (potassium citrate, sodium citrate and citric acid) produced by Dr. Madaus (Germany), on upper urinary tract stones was investigated in 398 patients in this study group. The patients were treated with 3 or 4 g CG-120 daily. Two hundred thirty-one of them were treated accurately according to the protocol of the study for more than 32 weeks. The cumulative percentage of positive clinical effect for the stone (disappearance, passage or decrease in size) was 30.3% (70/231). There were no differences in the clinical effect between the group of 3 g/day and the group of 4 g/day. CG-120 seemed to be more effective in the cases of ureteral stone, young patients and females, but was less effective in the recurrent stone formers. Although there were 45 episodes of side effects in 38 patients in this study, no serious side effects attributed to CG-120 were experienced. CG-120 was proved as a useful drug in the treatment of upper urinary tract calculi as well as its prevention.
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Affiliation(s)
- T Ohkawa
- Department of Urology, Wakayama Medical College
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22
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Yasukawa S. [Clinical studies of citrate therapy on urolithiasis--estimations of urinary citrate excretion in patients with urolithiasis and the results of treatment with sodium-potassium citrate]. Nihon Hinyokika Gakkai Zasshi 1988; 79:620-8. [PMID: 3226014] [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: 01/04/2023]
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23
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Yasukawa S. [Basic studies of citrate therapy on urolithiasis--the effect of citrate on solubility of calcium oxalate crystal and on calcium deposition of murine kidney in experimental oxalate stone]. Nihon Hinyokika Gakkai Zasshi 1988; 79:613-9. [PMID: 3226013] [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: 01/04/2023]
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ohkawa T. Rice-Bran Treatment for Calcium Stone Formers With Idiopathic Hypercalciuria. J Urol 1987. [DOI: 10.1016/s0022-5347(17)43064-3] [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: 10/19/2022]
Affiliation(s)
- S. Ebisuno
- Department of Urology, Wakayama Medical College, Wakayama, Japan
| | - S. Morimoto
- Department of Urology, Wakayama Medical College, Wakayama, Japan
| | - T. Yoshida
- Department of Urology, Wakayama Medical College, Wakayama, Japan
| | - T. Fukatani
- Department of Urology, Wakayama Medical College, Wakayama, Japan
| | - S. Yasukawa
- Department of Urology, Wakayama Medical College, Wakayama, Japan
| | - T. Ohkawa
- Department of Urology, Wakayama Medical College, Wakayama, Japan
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Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ebisuno S, Ohkawa T, Kitagawa M, Minakata S, Sangen H, Fujinaga T. [Primary hyperparathyroidism in 23 cases]. Hinyokika Kiyo 1987; 33:812-8. [PMID: 3673833] [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: 01/06/2023]
Abstract
Twenty-three cases of primary hyperparathyroidism were experienced at Wakayama Medical College Hospital and affiliated hospitals between January, 1969 and December 1985. Histopathological findings were adenoma in 22 cases, hyperplasia in 1 case. On the clinical diagnosis of this disease, the most sensitive laboratory test was serum calcium level, which was elevated in 21 patients (91%), and in 87.8% of all samples measured. Serum ionized calcium and phosphorus were also sensitive measures. The positive rate of serum PTH was 67% in 18 cases. Tl-chloride scintigraphy identified preoperatively the site of the adenomas in 8 out of 10 cases, and computed tomography in 10 out of 15 cases. Both methods are non-invasive, and are beneficial for the preoperative examination of the localization of parathyroid adenoma. After parathyroidectomy, serum calcium and ionized calcium levels recovered rapidly within the normal limit in 12 hours. On the other hand, serum phosphorus level increased gradually up to the normal limit in about 1 week.
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Affiliation(s)
- S Morimoto
- Department of Urology, Wakayama Medical College
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26
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Yasukawa S, Uehara M, Morimoto S, Yoshida T, Fukatani T, Ebisuno S, Ohkawa T. [Studies of citrate metabolism in urolithiasis. 2--Influences of citrate compound administration on sequential excretion of urinary citrate and other substances related to stone formation in healthy controls]. Nihon Hinyokika Gakkai Zasshi 1987; 78:626-33. [PMID: 3669471] [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: 01/06/2023]
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28
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ohkawa T. Effect of dietary calcium and magnesium on experimental renal tubular deposition of calcium oxalate crystal induced by ethylene glycol administration and its prevention with phytin and citrate. Urol Int 1987; 42:330-7. [PMID: 3433579 DOI: 10.1159/000281987] [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: 01/05/2023]
Abstract
Oral administration of ethylene glycol to rats, and the resultant intratubular depositions of microcrystals of calcium oxalate were studied investigating the influences of dietary calcium or magnesium and assessing the protective efficacies against the crystallizations by treatment with phytin and sodium citrate. With increase of calcium intake and consequent increase of urinary calcium excretion there was a marked increase in the amount of tubular deposit of calcium oxalate crystal and in the calcium content of renal tissue. Although magnesium deficiency accelerated renal tubular calcium oxalate deposition, the protection against the crystal formation was not observed with excessive dietary magnesium. When rats were fed a high-calcium diet supplemented with phytin, a significant inhibition of the intratubular crystallization was observed. It appeared obvious that a hypocalciuric action of phytin was attributed to the effect of the prevention. There was vigorous protection of crystal formation by treatment with sodium citrate, which correlated with the level of citrate concentration in the drinking water.
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Affiliation(s)
- S Ebisuno
- Department of Urology, Wakayama Medical College, Japan
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ohkawa T. Rice-bran treatment for calcium stone formers with idiopathic hypercalciuria. Br J Urol 1986; 58:592-5. [PMID: 3801813 DOI: 10.1111/j.1464-410x.1986.tb05892.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The efficacy of rice-bran therapy was studied in patients with hypercalciuria who were suffering from calcium stones. The frequency of stone episodes was reduced dramatically, especially in "active recurrent stone formers". Urinary calcium excretion was considerably reduced, while urinary phosphate and oxalate were slightly increased. Urinary magnesium, uric acid, serum calcium, phosphate, magnesium and uric acid were not affected. There were no changes in serum iron, copper and zinc even when patients were treated for long periods. The treatment was tolerated well and there were no serious side effects. Rice-bran therapy is particularly useful in patients with hyperabsorptive hypercalciuria and it is effective in the prevention of recurrent urinary stone disease.
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Okawa T. [Renal oxalate excretion following oral oxalate load in patients with urinary calculus disease and healthy controls]. Hinyokika Kiyo 1986; 32:1773-9. [PMID: 3825824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Oral oxalate loading using sodium oxalate or a vegetable juice was done to evaluate the intestinal absorption of exogenous oxalate in 30 patients with renal stones and 13 healthy controls. Fifteen calcium oxalate stone formers, 7 non-oxalate stone formers and 10 healthy volunteers were given an oral loading of sodium oxalate (500 mg). Urinary oxalate increased promptly, reaching a peak value within 4 to 8 hours after administration of a synthetic oxalate orally in a fasting state. In calcium oxalate stone formers, the mean increment of urinary oxalate and the bioavailability following oral sodium oxalate load were significantly higher than in the healthy controls and non-oxalate stone formers. Furthermore, intestinal hyperabsorption of oxalate in our criterion was defined in six patients with calcium oxalate stones (40%). On the other hand, eight calcium oxalate stone formers and three healthy controls were given vegetable juice. Urinary oxalate was increased only slightly after the ingestion, and there was no difference between calcium oxalate stone formers and normal controls. These results suggest that a certain hyperoxaluria might be induced by intestinal absorption of exogenous oxalate, and that the hyperabsorption might indicate a possible risk factor for calcium oxalate stone formation.
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Ebisuno S, Morimoto S, Yasukawa S, Yoshida T, Fukatani T, Minakata S, Uehara M, Ohkawa T. [Circadian rhythms of lithogenic and inhibitory substances in the urine]. Hinyokika Kiyo 1986; 32:667-71. [PMID: 3751794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The diurnal variations of urine composition with respect to urinary pH, volume, creatinine, calcium, magnesium, phosphate, uric acid, citrate and oxalate were studied in five healthy men. Generally, there was considerable variations in the excretion of the different urine constituents with meal related peaks except phosphate, which was most pronounced after dinner. The analysis of a 24-hour urine collection cannot account fully for the crystallization properties of urine and a fractionated urinalysis might be of value for therapeutic decisions. However, such procedures probably will not be possible in clinical practice and more reliable methods for evaluation of the crystallization propensity in whole 24-hour urine have to be developed.
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Yamazaki Y, Yasukawa S, Mizuno R, Sakurai K. The adult type pulmonary hamartoma in an 11-year-old boy. Z Kinderchir 1986; 41:109-11. [PMID: 3716634 DOI: 10.1055/s-2008-1043323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hamartoma of the lung occurs most often in persons after the age of 40, but quite rarely among children. This paper reports on an 11-year-old boy with a pulmonary hamartoma in the right upper lobe. The patient was asymptomatic, but a well demarcated, solitary, lobulated nodule with a "popcorn"-shaped calcification was visualised on chest x-ray film. An upper lobectomy was carried out to remove the lesion. The post-operative course was uneventful. Two years post-operatively, the child was symptom-free and has been developing normally.
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ohkawa T. [Studies of phytin therapy for calcium urolithiasis with hypercalciuria. 2. An animal study]. Nihon Hinyokika Gakkai Zasshi 1986; 77:12-8. [PMID: 3723904 DOI: 10.5980/jpnjurol1928.77.1_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Ebisuno S, Morimoto S, Yoshida T, Fukatani T, Yasukawa S, Ohkawa T. [Studies of phytin therapy for calcium urolithiasis with hypercalciuria. 1. Basal experiments]. Nihon Hinyokika Gakkai Zasshi 1986; 77:5-11. [PMID: 3723912 DOI: 10.5980/jpnjurol1928.77.1_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Yasukawa S, Takamatsu M, Ebisuno S, Morimoto S, Yoshida T, Ohkawa T. [Studies on citrate metabolism in urolithiasis. 1. An enzymatic determination of urinary citrate with citrate lyase]. Nihon Hinyokika Gakkai Zasshi 1985; 76:1848-54. [PMID: 3835363 DOI: 10.5980/jpnjurol1928.76.12_1848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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36
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Ebisuno S, Morimoto S, Fukatani T, Miyazaki Y, Yasukawa S, Sawada Y, Ohkawa T. [Studies of experimental calcium oxalate stones. 1. The calcium and magnesium of renal deposition of calcium oxalate induced by ethylene glycol administration]. Nihon Hinyokika Gakkai Zasshi 1985; 76:831-42. [PMID: 4068424] [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: 01/08/2023]
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37
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Miyazaki Y, Ebisuno S, Kitagawa M, Morimoto S, Yasukawa S, Ohkawa T. [Study of the influence of conditions during urine collection on measurement of the major constituents of urinary calculi]. Nihon Hinyokika Gakkai Zasshi 1985; 76:881-8. [PMID: 3934443 DOI: 10.5980/jpnjurol1928.76.6_881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ebisuno S, Kitagawa M, Morimoto S, Miyazaki Y, Minakata S, Yasukawa S, Fukatani T, Ohkawa T. [Studies of urinary risk factors in urolithiasis]. Hinyokika Kiyo 1985; 31:1-15. [PMID: 3993484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Urinary excretions of calcium, oxalate and uric acid were estimated in 160 stone-formers (male 118, female 42) and 257 healthy controls (male 207, female 50). Stone-formers were divided into two groups according to their stone analysis: calcium containing stone-formers and non-calcium stone-formers. Calcium stone-formers were divided again into those who had a single stone episode and multiple or recurrent stone episodes. Urinary calcium and oxalate showed significant increases in calcium stone-formers, while urinary uric acid increased only in male calcium stone-formers. Recurrent calcium stone-formers demonstrated significant high levels of urinary calcium excretion especially in males, whereas no difference of urinary oxalate excretion between recurrent and single stone-formers. The frequency distributions on the excretion of three subjects were estimated respectively in patients with calcium stone and in controls. Relative risks, risk curves and stone probabilities were proposed and compared. The higher excretion values of urinary calcium and oxalate closely related to higher risks of forming calcium stones. On the other hand, urinary uric acid did not have such a relation to calcium stone formation. We defined the states which urinary excretions exceeded 95% upper confidence limits of normal controls as hyperexcretions. Hypercalciuria was more than 200 mg/day in male and female, hyperoxaluria was 50 mg/day in male and 45 mg/day in female and hyperuricosuria was 850 mg/day in male and 650 mg/day in female according to our definition. Among male calcium stone-formers, hypercalciuria was found in 45.3%, hyperoxaluria in 26.4% and hyperuricosuria in 15.1%. While in female calcium stone-formers, hypercalciuria in 23.7%, hyperoxaluria in 26.3% and hyperuricosuria in 13.2%. Of the male calcium stone-formers 57.5% showed either or both hypercalciuria and hyperoxaluria, and recurrent stone-formers also demonstrated a higher incidence among them. Excretion products of urinary calcium and oxalate were calculated and compared in each group. Calcium stone-formers showed significant high values especially in male recurrent stone-formers. The estimation by combining some risk factors will provide more useful means of assessing severity of urinary calculous diseases and therapeutic effects of their various treatments.
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Ohkawa T, Ebisuno S, Kitagawa M, Morimoto S, Miyazaki Y, Yasukawa S. Rice bran treatment for patients with hypercalciuric stones: experimental and clinical studies. J Urol 1984; 132:1140-5. [PMID: 6094846 DOI: 10.1016/s0022-5347(17)50065-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The purpose of this study is to confirm the hypocalciuric effect of rice bran experimentally and clinically. Urinary calcium excretion and its absorption in the intestine were reduced significantly by rice bran or phytin in rats fed high calcium diets, while there were no significant decreases with a low calcium diet. For the clinical study 70 patients with idiopathic hypercalciuria were treated with rice bran (10 gm. twice daily) for 1 month to 3 years. In almost all patients rice bran caused a significant decrease in urinary calcium excretion, which was maintained during treatment. Evidence of stones has decreased clearly among patients treated with rice bran for 1 to 3 years, although this might be a halfway judgment of the long-term treatment. We suggest that phytin should be the most effective substance to reduce the intestinal absorption of calcium and that rice bran treatment should be effective for prevention of recurrent urinary stone disease.
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Ebisuno S, Miyazaki Y, Yasukawa S, Ohkawa T. [Studies of oxalate metabolism in urolithiasis. 2. Excretion of urinary oxalate in stone formers and healthy controls]. Nihon Hinyokika Gakkai Zasshi 1984; 75:467-75. [PMID: 6471658 DOI: 10.5980/jpnjurol1928.75.3_467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Kitagawa M, Morimoto S, Yasukawa S, Miyazaki Y, Mikuni T. [Clinical statistics on inpatients and operations in the Urological Department of the Wakayama Red Cross Hospital (April, 1979 to March, 1983)]. Hinyokika Kiyo 1984; 30:311-9. [PMID: 6464907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Statistical observations made on the 1,102 inpatients and 1,127 operations at our clinic between April 1979 and March 1983 were reviewed. The patients were most frequently in their sixties, and lately patients under 10 are increasing. The most frequent diseases of the inpatients were benign prostatic hypertrophies, ureteral calculi, undescended testicles and bladder tumors. The frequently performed operations were those for bladder tumors, phimosis and benign prostatic hypertrophies in order of frequency.
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Morimoto S, Kitagawa M, Miyazaki Y, Yasukawa S, Mikuni T. [Gynecological urologic disease: a summary of clinical experience during the last 4 years at Wakayama Red Cross Hospital]. Hinyokika Kiyo 1984; 30:159-67. [PMID: 6741752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
From April 1979 to March 1983, sixty seven patients with gynecological urologic disease were experienced at our department. Forty one of them were inpatients, i.e., 15.3% of the total number of female in patients admitted during the same period. Thirty three urologic operations were performed on them which corresponded to 16.1% of the total operations on female patients. Ten of these patients had ureteral obstruction following gynecological operation, 8 had ureteral fistula, 7 had vesicovaginal fistula, 11 had tumor invasion to urinary tract, 14 had radiation cystitis, 16 had neurogenic bladder dysfunction, and 1 had other complication. The treatment of these patients and the results are summarized and discussed.
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Nishio O, Ishihara Y, Sakae K, Nonomura Y, Kuno A, Yasukawa S, Inoue H, Miyamura K, Kono R. The trend of acquired immunity with live poliovirus vaccine and the effect of revaccination: follow-up of vaccinees for ten years. J Biol Stand 1984; 12:1-10. [PMID: 6699021 DOI: 10.1016/s0092-1157(84)80015-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The persistence of neutralizing antibody (NA) against three types of poliovirus acquired after two doses of trivalent live attenuated poliovirus vaccine (LPV) has been followed up for ten years in individual vaccinees. Sixty-seven children were bled once a year over a five year period following the primary vaccination. More than 80% of them retained NA against all three types of poliovirus. Thirty-two individuals whose NA titres were 1:16 or over for types 1 and 2 and 1:4 or over for type 3 at the fifth year were further followed up for a further five years and it was shown that during this period some of them had a naturally-acquired antibody rise, mostly against type 3 virus. At the sixth to eighth year after the primary vaccination, one further dose of the trivalent vaccine was administered to the children whose NA titres were down to 1:8 or less and the effect of booster vaccination on NA was followed. Other subjects were revaccinated with LPV and their fecal excretion of the vaccine virus was investigated. The results showed that a decrease in serum antibody level could be a good indicator of the local resistance of the alimentary tract and that reinfection could occur if serum NA had decreased to 1:8 or less, which allowed a virus excretion in the stools.
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Ebisuno S, Kitagawa M, Morimoto S, Miyazaki Y, Minakata S, Yasukawa S, Ohkawa T. [Oxalate metabolism in urolithiasis. 1. Determination of urinary oxalate by high performance liquid anion exchange chromatography]. Nihon Hinyokika Gakkai Zasshi 1983; 74:1598-605. [PMID: 6676588] [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: 01/21/2023]
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Kimura I, Sakuma F, Ito Y, Nishio O, Yasukawa S. Unusual proliferation of bile-duct cells in ICR female mice given 2,7-fluorenylbisacetamide while nursing sucklings. Gan 1972; 63:507-8. [PMID: 4673236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Affiliation(s)
- S. Yasukawa
- Japan Atomic Energy Research Institute, Tokai-Mura, Naka-Gun, Ibaraki-ken, Japan
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