26
|
Sakamaki S, Hirayama Y, Matsunaga T, Kuroda H, Kusakabe T, Akiyama T, Konuma Y, Sasaki K, Tsuji N, Okamoto T, Kobune M, Kogawa K, Kato J, Takimoto R, Koyama R, Niitsu Y. Transforming growth factor-beta1 (TGF-beta1) induces thrombopoietin from bone marrow stromal cells, which stimulates the expression of TGF-beta receptor on megakaryocytes and, in turn, renders them susceptible to suppression by TGF-beta itself with high specificity. Blood 1999; 94:1961-70. [PMID: 10477725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
The present study was designed to test the concept that platelets release a humoral factor that plays a regulatory role in megakaryopoiesis. The results showed that, among various hematoregulatory cytokines examined, transforming growth factor-beta1 (TGF-beta1) was by far the most potent enhancer of mRNA expression of bone marrow stromal thrombopoietin (TPO), a commitment of lineage specificity. The TPO, in turn, induced TGF-beta receptors I and II on megakaryoblasts at the midmegakaryopoietic stage; at this stage, TGF-beta1 was able to arrest the maturation of megakaryocyte colony-forming units (CFU-Meg). This effect was relatively specific when compared with its effect on burst-forming unit-erythroid (BFU-E) or colony-forming unit-granulocyte-macrophage (CFU-GM). In patients with idiopathic thrombocytopenic purpura (ITP), the levels of both TGF-beta1 and stromal TPO mRNA were correlatively increased and an arrest of megakaryocyte maturation was observed. These in vivo findings are in accord with the aforementioned in vitro results. Thus, the results of the present investigation suggest that TGF-beta1 is one of the pathophysiological feedback regulators of megakaryopoiesis.
Collapse
|
27
|
Koyama R, Kataoka H, Tanaka Y, Nakatsugi S, Furukawa M. Effect of caffeine on ibuprofen-induced gastric mucosal damage in rats. J Pharm Pharmacol 1999; 51:817-24. [PMID: 10467957 DOI: 10.1211/0022357991773014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
During investigations on the effect of caffeine on ibuprofen-induced gastric mucosal lesions in rats, we have found that caffeine (p.o.) inhibits the development of ibuprofen-induced gastric lesions in a dose-dependent manner (ED50 18.4 mg kg(-1)). To investigate this protective effect of caffeine, we have studied the effect of caffeine on HCl-ethanol-induced gastric mucosal lesions with or without indomethacin pretreatment. Caffeine inhibited the development of HCl-ethanol-induced gastric lesions with and without indomethacin pretreatment. These results indicate that caffeine did not act as a mild irritant but, on the contrary, had protective effects. We measured the gastric mucosal prostaglandin E2 (PGE2) concentrations and gastric mucosal blood flow, as representative protective factors for gastric mucosa. Caffeine did not affect the gastric mucosal PGE2 concentrations 4h after administration of ibuprofen. However, topical administration of caffeine resulted in an increase in gastric mucosal blood flow, as measured by laser Doppler flowmetry. We investigated the gastric acid secretion and gastric mucosal myeloperoxidase activity as representative aggressive factors for gastric mucosa. When caffeine was administered intraduodenally in pylorus-ligated rats, gastric acid secretion decreased in a dose-dependent manner, with an ED50 of 44.9 mg kg(-1). Caffeine decreased ibuprofen-induced gastric myeloperoxidase activity in a dose-dependent manner, with an ED50 of 9.1 mg kg(-1). These findings indicate that caffeine, at least in rats, may inhibit the development of acute gastric mucosal injury. The mechanisms underlying the protective actions of caffeine are unclear, but may be related in part to an increase in gastric mucosal blood flow and suppression of neutrophil activation.
Collapse
|
28
|
Masuko E, Homma H, Ohta H, Nojiri S, Koyama R, Niitsu Y. Rheologic analysis of gastric mucosal hemodynamics in patients with cirrhosis. Gastrointest Endosc 1999; 49:371-9. [PMID: 10049423 DOI: 10.1016/s0016-5107(99)70016-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Portal hypertensive gastropathy causes some gastric mucosal microcirculatory disorders in cirrhotic patients, but the nature of the rheologic dysfunction in the gastric microcirculation remains to be clarified. METHODS To examine the rheologic properties of the gastric microcirculation, we subjected 112 cirrhotic patients and 51 control subjects to endoscopic laser Doppler flowmetry and measured multiple variables of flow, red blood cell volume, and velocity. Furthermore, based on these results, we analyzed the shear rate which reflects the status of the microcirculatory system. To validate the laser Doppler flowmetry, we derived the relationship between red blood cell volume and cross-sectional areas of submucosal collecting venules; near-infrared endoscopy was used to evaluate this relationship. RESULTS Analysis of shear rate according to the severity of portal hypertensive gastropathy showed that the mucosa was exposed to strong hemokinetic stress in severe cases, characterized by a higher shear rate than in control subjects or in mild cases. Nitroglycerin, administered by intravenous infusion (1.0 microg/kg/min), reduced blood flow and restored shear rate to control levels in patients with severe portal hypertensive gastropathy. CONCLUSION This rheologic study of the gastric mucosa suggests that a disorder of the shear rate control mechanism in the microcirculation is associated with severe portal hypertensive gastropathy.
Collapse
|
29
|
Hirayama Y, Sakamaki S, Matsunaga T, Kuga T, Kuroda H, Kusakabe T, Sasaki K, Fujikawa K, Kato J, Kogawa K, Koyama R, Niitsu Y. Concentrations of thrombopoietin in bone marrow in normal subjects and in patients with idiopathic thrombocytopenic purpura, aplastic anemia, and essential thrombocythemia correlate with its mRNA expression of bone marrow stromal cells. Blood 1998; 92:46-52. [PMID: 9639498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The function of bone marrow (BM) stromal thrombopoietin (TPO) in megakaryopoiesis remains unknown. In the present study we attempted to clarify the pathophysiological implications of stromal TPO in normal subjects (NS) and in patients with idiopathic thrombocytopenic purpura (ITP), aplastic anemia (AA), and essential thrombocythemia (ET) by measuring TPO concentrations in BM and peripheral blood (PB) and by estimating the levels of stromal TPO mRNA with TaqMan fluorescence-based post-reverse transcription-polymerase chain reaction product detection system. The results showed that TPO concentrations in PB were significantly elevated in patients with ITP (34.9 +/- 11.7 pg/mL) and AA (364.1 +/- 153.5 pg/mL) but within normal range in patients with ET (each 20.0 and 22.1; NS, 22.1 +/- 8.2 pg/mL). In all subjects, the TPO concentrations in BM correlated well with the PB levels, and the former were consistently higher than the latter. The concentrations of TPO in BM also correlated with the levels of TPO mRNA in stromal cells. Furthermore, expression levels of TPO mRNA clearly correlated with megakaryocyte counts in NS and patients with ITP, indicating that stromal TPO actually enhances megakaryopoiesis. Thus, our results in the present study indicate that TPO from BM stromal cells is considered to play an essential role for megakaryopoiesis under various patho-physiological conditions.
Collapse
|
30
|
Hirayama Y, Nagai T, Ohta H, Koyama R, Matsunaga T, Sakamaki S, Niitsu Y. [A case of pure red cell aplasia accompanied with granular lymphocytic leukemia the tumor cells of which suppressed colony formation of BFU-E, and which was successfully treated by cyclophosphamide and cyclosporin A]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1997; 38:1206-11. [PMID: 9423339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A 69-year-old woman with pure red cell aplasia and granular lymphocytic leukemia was reported. Because her granular lymphocyte count was in the normal range at the time of admission, we diagnosed the patient as primary pure red cell aplasia (PRCA). The granular lymphocyte count increased slowly, and we find monoclonal T cell receptor rearrangement, the case was diagnosed as granular lymphocytic leukemia accompanied with PRCA. Although single administration of cyclosporin or cyclophosphamide induced severe side effects obtained combined administration of low doses of these agents obtained good Hb increase. This case was granular lymphocytic leukemia with normal granular lymphocytic count at the time of diagnosis, the tumor cell suppressed BFU-E colony formation, and combined administration of low dose CPM and CyA yielded good effects.
Collapse
|
31
|
Nagai T, Hirayama Y, Ohta H, Koyama R, Matsunaga T, Kuga T, Sakamaki S, Niitsu Y. [Successful high-dose chemotherapy combined with autologous bone marrow transplantation in a case of refractory follicular lymphoma]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1997; 38:513-9. [PMID: 9248327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 34-year-old patient with follicular lymphoma who was treated with CHOP followed by COPP for 3 years, became resistant to treatment in December 1993. Histological findings and surface markers of cervical lymph node cells revealed no change from previous findings. Tumor cell involvement of bone marrow was also observed by molecular analysis of DNA fragments with bcl-2 oncogene and J-H gene probes. Following 2 courses of salvage chemotherapy with NOAC-M regimen (novantrone, cytarabine and methylprednisolone), There was an 88% reduction of tumor mass on computed tomographic findings. Through the use of polymerase chain reaction analysis of residual cells with the bcl-2 translocation, we confirmed the in vivo purging of tumor cells from bone marrow and we harvested marrow cells for autologous transplantation. After high-dose chemotherapy (HDC) with ranimustine, cisplatin, etoposide and cyclophosphamide followed by bone marrow transplantation (BMT), complete remission was achieved. The patient has survived for 16 months and remains disease free. The standard chemotherapy regimen for advanced low grade non-Hodgkin's lymphoma has not yet been defined. Although we must follow this patient carefully to determine the effect of HDC with BMT for a long time, this seems to be an effective complementary treatment for patients responding to conventional salvage regimens.
Collapse
|
32
|
Yokota M, Uchibori S, Hayashi H, Koyama R, Kosakai K, Wakabayashi S, Tomiyama T. Azulene derivatives as TXA2/PGH2 receptor antagonists--II. Synthesis and biological activity of 6-mono- and 6-dihydroxylated-isopropylazulenes. Bioorg Med Chem 1996; 4:575-91. [PMID: 8735846 DOI: 10.1016/0968-0896(96)00038-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In order to examine the correlation between activity and hydrophilicity of the side chain of sodium 3-[4-(4-chlorobenzenesulfonylamino)butyl]-6-isopropylazulene -1-sulfonate (KT2-962), a non-prostanoid TXA2/PGH2 receptor antagonist, one or two hydroxyl groups were introduced into the isopropyl moiety. A series of 6-hydroxylated-isopropylazulenes were synthesized by regioselective oxidation of 6-isopropylazulenes and their in vitro and in vivo antagonistic activities were studied. Both the primary and tertiary alcohols, monohydroxylated derivatives, exhibited potent biological activities comparable to unmodified 6-isopropylazulenes both in vitro and in vivo. In contrast, the activities of 1,2- and 1,3-diols of 6-substituted derivatives, markedly decreased, but recovered by O-isopropylidenation of the dihydroxyl moiety. These findings indicate that the moderate hydrophobicity of substituent at the 6-position of the azulene ring might be required for the activity and the size of the substituent at this position, not so rigid for keeping potent biological activity.
Collapse
MESH Headings
- 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Azulenes
- Benzenesulfonates/chemistry
- Benzenesulfonates/metabolism
- Benzenesulfonates/pharmacology
- Cycloheptanes/chemistry
- Cycloheptanes/metabolism
- Cycloheptanes/pharmacology
- Death, Sudden/etiology
- Humans
- Male
- Mice
- Prostaglandin Endoperoxides, Synthetic/pharmacology
- Prostaglandins H/metabolism
- Rabbits
- Rats
- Rats, Wistar
- Receptors, Prostaglandin/antagonists & inhibitors
- Receptors, Prostaglandin/metabolism
- Receptors, Thromboxane/antagonists & inhibitors
- Receptors, Thromboxane/metabolism
- Receptors, Thromboxane A2, Prostaglandin H2
- Structure-Activity Relationship
- Thromboxane A2/analogs & derivatives
- Thromboxane A2/pharmacology
Collapse
|
33
|
Koyama R. [Gamma-enolase (gamma-eno)]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1995; 53:1277-1281. [PMID: 7602791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Enolase catalyzes the interconversion of 2-phosphoglycelate and phosphoenolpyruvate in the glycolytic pathway. Enolase isozymes are dimers formed from three subunits (alpha, beta, and gamma). The gamma subunit, containing enolase (gamma-enolase) in serum, is important in the diagnosis of tumors originating from APUD (amine precursor uptake and decarboxylation) cells, like neuroblastoma, small cell carcinoma for the lung and certain carcinomas of the thyroid, the pancreas and the gut. Therefore, the determination of serum gamma-enolase levels is useful as a tumor marker of these neoplasms. On the other hand, raised gamma-enolase levels in cerebrospinal fluid have been demonstrated in patients suffering from various neurological disorders. In this paper, the author reviews the results of some of many studies related to gamma-enolase, up to now.
Collapse
|
34
|
Koyama R, Nakanishi F, Katoh S. [A case of pulmonary tuberculosis with HIV infection--review of 5 cases in Japan]. KEKKAKU : [TUBERCULOSIS] 1994; 69:693-698. [PMID: 7837723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Recently we encountered a case of pulmonary tuberculosis with HIV infection. The patient was 54-years old male. His chief complaints were anemia, emaciation and severe diarrhea. He was admitted to our hospital on September 18, 1992. He had been diagnosed in another clinic as having pulmonary tuberculosis before the admission to our hospital. His chest films taken on admission revealed homogeneous infiltrates with cavitation in right upper lobe. Serial chest X-rays consisted with the findings of post-primary tuberculosis. Sputum smear for acid fast bacilli was positive. From his clinical manifestations and life-history, we had a suspicion that he had infected with HIV. Laboratory findings were as follows: serum albumin level was 1.9 g/dl, CRP was 10.2 mg/dl, serological tests for HIV were positive by EIA, IFA and western blott method, total lymphocyte count was 819/microliters, CD4+ T lymphocyte count was 120/microliter CD4+/CD8+ ratio was 0.2. He was treated with AZT, isoniazid, streptomycin and rifampicin. The disease progressed rapidly and interstitial pneumonia, jaundice and clouding of consciousness appeared at the terminal stage. He expired on October 14, 1992. In this paper, the authors reported a case of pulmonary tuberculosis with HIV infection and also reviewed 5 cases of pulmonary tuberculosis associated with HIV in Japan.
Collapse
|
35
|
Ohta H, Kohgo Y, Takahashi Y, Koyama R, Suzuki H, Niitsu Y. Computer-assisted data processing of images of mucosal and submucosal blood vessels of the stomach obtained by visible and infrared endoscopy using a directional-contrast filter. Gastrointest Endosc 1994; 40:621-8. [PMID: 7988830 DOI: 10.1016/s0016-5107(94)70266-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
36
|
Nagai T, Koyama R, Sasagawa Y, Matsumoto S, Kohgo Y, Niitsu Y, Konn S. [Follicular lymphoma associated with t(14;18)(q32;q21) chromosome translocation and bcl-2 gene rearrangement: report of a case]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1993; 34:137-42. [PMID: 8492410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A 31-year-old Japanese male who complained of low-grade fever, fatigue and generalized lymphadenopathy had shown an increase in peripheral white cell count, and 84% of peripheral blood cell and 76% of nuclear bone marrow cells consisted of small cleaved lymphoblastic abnormal cells with or without barely visible nucleoli. Cytogenic study of cervical lymph node biopsy specimens showed a t(14;18)(q32;q21) chromosome translocation. Histologically the lymph node cells were classified according to the International Working Formulation as follicular small cleaved-cell lymphoma. Molecular analysis of DNA fragments of peripheral lymphocytes revealed both J-H gene and bcl-2 oncogene rearrangements. Immunophenotypes of peripheral lymphocytes, bone marrow cells and lymph node cells expressed a clonally distinct B-cell population bearing surface immunoglobulin-G, kappa-chain, CD-10, CD-19, CD-20, CD-21 and OKIa-1 antigens. We diagnosed this case as follicular lymphoma in the leukemic phase,
Collapse
|
37
|
Nagai T, Koyama R, Sasagawa Y, Matsumoto S, Niitsu Y, Takayama S, Murakami T, Matsuura A. Diffuse infiltrating T-cell lymphoma of the colon associated with polyclonal hypergammaglobulinemia and hepatocellular carcinoma: report of a case. JAPANESE JOURNAL OF MEDICINE 1991; 30:57-63. [PMID: 1650855 DOI: 10.2169/internalmedicine1962.30.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A 55-year-old man with a chief complaint of melena had diffusely infiltrated lymphoma from the rectum to the sigmoid colon and polyclonal hypergammaglobulinemia. Biopsy specimen obtained from the rectum revealed diffuse medium-sized lymphoma cell with plasmocytosis. Histochemical analysis with monoclonal antibodies indicated that the origin of the tumor cell to be T-lymphocyte. Chemotherapy with cyclophosphamide, vincristine and prednisolone (VEP regimen) was effective for mucosal bleeding of the colonic lesion and reduction of polyclonal hypergammaglobulinemia. Five yrs later he showed recurrence of the disease and elevation of serum alphafetoprotein, and died of pulmonary infections. Autopsy finding confirmed the diagnosis of malignant lymphoma of the colon and disclosed the association of hepatocellular carcinoma.
Collapse
MESH Headings
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Carcinoma, Hepatocellular/complications
- Carcinoma, Hepatocellular/pathology
- Colorectal Neoplasms/complications
- Colorectal Neoplasms/drug therapy
- Colorectal Neoplasms/pathology
- Etoposide/administration & dosage
- Humans
- Hypergammaglobulinemia/complications
- Ileal Neoplasms/complications
- Liver Neoplasms/complications
- Liver Neoplasms/pathology
- Lymphoma, Non-Hodgkin/complications
- Lymphoma, Non-Hodgkin/drug therapy
- Lymphoma, Non-Hodgkin/pathology
- Lymphoma, T-Cell/complications
- Lymphoma, T-Cell/drug therapy
- Lymphoma, T-Cell/pathology
- Male
- Melena/etiology
- Middle Aged
- Neoplasms, Multiple Primary/complications
- Prednisolone/administration & dosage
- Tuberculosis, Pulmonary/complications
- Vindesine/administration & dosage
Collapse
|
38
|
Sasagawa Y, Koyama R, Nagai T, Tamura M, Satoh M, Kohgo Y, Niitsu Y. [IBL like T cell lymphoma associated with hemolytic anemia and polyploidy chromosomal abnormality--a case report]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1990; 31:110-4. [PMID: 2156094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A 56-year-old man was admitted to Sapporo Kitano Hospital on May 30, 1987 because of fever, retention of ascites and pleural effusion, generalized lymphnode swelling and hepatosplenomegaly. Laboratory findings showed Coombs' positive hemolytic anemia, leukocytosis and polyclonal hypergammaglobulinemia. Serological test included positive RA factor, anti-DNA 16 U/ml, thyroglobulin Ab 1600 x and microsome Ab 3200 x. A cervical lymphnode specimen exhibited typical histologic picture of IBL like T cell lymphoma. The surface markers of lymphoma cells were CD2(+), CD8(+) and CD4(-). Chromosomal analysis of these cells revealed polyploidy abnormality for all chromosomes except for No. 14's which are disomy. All lymphoma cells have XXY sex chromosome and mar1, mar2, mar3. Gene rearrangement for beta-chain of T cell receptor was proved in these lymphoma cells. He was treated with prednisolone, vincristine, cyclophosphamide, adriamycin etc, but died of respiratory failure 171 days after admission. We reported a rare case of IBL like T cell lymphoma with polyploidy chromosomal abnormality accompanied with hemolytic anemia.
Collapse
|
39
|
Nagai T, Koyama R, Sasagawa Y, Nisimura W, Toda K, Adachi H, Takada K, Okii K, Kawanishi J, Nakajima M. [Retroperitoneal lymphangioma: report of a case and a brief review of the literature in Japan]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 1989; 86:1159-63. [PMID: 2677446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
40
|
Koyama R, Nagai T, Sasagawa Y, Matsumoto S, Enomoto K, Yamada T. [A case of multiple myeloma (IgG, k) associated with hypertetraploid chromosomal abnormality]. GAN NO RINSHO. JAPAN JOURNAL OF CANCER CLINICS 1988; 34:238-43. [PMID: 3126334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A patient with multiple myeloma (IgG, k) associated with hypertetraploid chromosomal abnormality is reported. The patient was a 62-year-old female. She was admitted to our clinic in October 6, 1982 because of lumbago and a supraorbital subcutaneous tumor. Cellulose acetate membrane electrophoresis of her serum disclosed a M-protein in the gamma-globulin, and immunoelectrophoresis showed monoclonal IgG, k type. A marrow aspirate of her sternum contained 15% myeloma cells, some of which were large, while others were atypical. A chromosomal analysis of her bone marrow revealed 34 hypertetraploid cells of 35 metaphase cells. Chemotherapy was administered without success and she died of DIC and uremia on November 11, 1982. Histologically, pleomorphic myeloma cells that contained large cells with atypical nuclei proliferated in her bone marrow.
Collapse
|
41
|
Urushizaki I, Mogi Y, Kohgo Y, Onodera Y, Niitsu Y, Koyama R, Itaya H, Nakazawa O, Saijo N, Matsuda M. [Clinical phase II study of K-18 in cancer of the digestive organs]. Gan To Kagaku Ryoho 1988; 15:361-4. [PMID: 2449136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
42
|
Shirota K, Koyama R, Une Y, Nomura Y. Immunofluorescence for IgG and C3 in the swine kidney with trypsin-treated paraffin section: the influence of condition of formalin-fixation. NIHON JUIGAKU ZASSHI. THE JAPANESE JOURNAL OF VETERINARY SCIENCE 1986; 48:851-4. [PMID: 3531656 DOI: 10.1292/jvms1939.48.851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
43
|
Shirota K, Koyama R, Nomura Y. Glomerulopathy in swine: microscopic lesions and IgG or C3 deposition in 100 pigs. NIHON JUIGAKU ZASSHI. THE JAPANESE JOURNAL OF VETERINARY SCIENCE 1986; 48:15-22. [PMID: 3959370 DOI: 10.1292/jvms1939.48.15] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
44
|
Urushizaki I, Kogo Y, Kouda K, Ishitani K, Niitsu Y, Matsuda M, Gocho Y, Koyama R, Nagai T, Saijo N. [Clinical phase II study of 5'-DFUR for cancer of the digestive organs by a cooperative study group]. Gan To Kagaku Ryoho 1985; 12:2358-64. [PMID: 3000300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Phase II study of a new 5-fluorouracil derivative, 5'-deoxy-5-fluorouridine (5'-DFUR), was performed with oral administration. Forty-nine patients with advanced cancer of the digestive organs, lung and breast were entered, and 8 institutions in Hokkaido were involved. 5'-DFUR was administered three or four times a day at a daily dosage of 600 to 1200 mg. Partial response was observed in three gastric cancer cases and two breast cancer cases out of 39 evaluable cases, and minor response was observed in one colorectal cancer case. Overall response rate was 12.8%, 15.8% in gastric cancer and 66.7% in breast cancer. Side effects were observed in 15 cases out of 45 (33.3%), which mainly consisted of gastro-intestinal disturbances such as diarrhea.
Collapse
|
45
|
Narita M, Noda S, Seki C, Koyama R, Kifune M. [Reevaluation of the observation of the normal puerperal course]. JOSANPU ZASSHI = THE JAPANESE JOURNAL FOR MIDWIFE 1983; 37:802-807. [PMID: 6559872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
46
|
Ota T, Toriumi F, Koyama R, Numazawa T, Inomata A. [Nursing process: nursing of patients with hyperthyroidism. Nursing of a patient with hyperthyroidism: a case study]. KURINIKARU SUTADI = CLINICAL STUDY 1982; 3:919-28. [PMID: 6923118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
47
|
Toriumi F, Ota T, Koyama R, Numazawa T, Inomata A. [Nursing process: nursing of patients with hyperthyroidism. Nursing process of patients with hyperthyroidism]. KURINIKARU SUTADI = CLINICAL STUDY 1982; 3:913-8. [PMID: 6923117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
48
|
Toriumi F, Sawahata R, Ota T, Koyama R, Numazawa T. [Nursing process: nursing of patients with hyperthyroidism. Evaluation of the nursing process: a discussion]. KURINIKARU SUTADI = CLINICAL STUDY 1982; 3:929-38. [PMID: 6923119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
49
|
Koyama R. [Nursing process/nursing of patients with muscular dystrophy. Nursing of patients with Duchenne type muscular dystrophy]. KURINIKARU SUTADI = CLINICAL STUDY 1981; 2:1043-9. [PMID: 6915320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
50
|
Yamazaki H, Ohishi Y, Kido A, Yanagisawa M, Tashiro K, Higashi Y, Machida T, Kobayashi T, Koyama R, Okamoto T. [Retroperitoneal abscess with secondary pleural effusion: report of two cases (author's transl)]. Nihon Hinyokika Gakkai Zasshi 1981; 72:758-766. [PMID: 7289322 DOI: 10.5980/jpnjurol1928.72.6_758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|