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Oka H, Ito Y, Ikai Y, Matsumoto H, Kato K, Yamamoto I, Shimizu M, Kawamura N, Miyazaki Y, Nojiri T, Okumura M, Ohmi S, Sato T, Mori G. Survey of residual tetracyclines in kidneys of diseased animals in Aichi Prefecture, Japan (1985-1997). J AOAC Int 2001; 84:350-3. [PMID: 11324597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A survey was conducted to determine the incidence of tetracycline antibiotic (TCAs) residues in the kidneys of slaughtered animals that did not pass inspection for human consumption by the Japanese Food Sanitation Law and the Meat Inspection Law at the slaughterhouses in Aichi Prefecture, Japan, from April 1985 to March 1998. The kidneys were analyzed by the AOAC Official Method 995.09. Among 424 animals (147 cattle and 277 pigs), 131 (30.9%) were contaminated with TCAs, including 69 (16.3%) with chlortetracycline (CTC), 61 (14.4%) with oxytetracycline (OTC), 3 (0.7%) with tetracycline (TC), and 1 (0.2%) with doxycycline (DC). One sample (cattle kidney) was contaminated with both OTC and DC. The frequencies of OTC and TC residues were significantly higher (p < 0.05) in cattle than in pigs, whereas, the frequency of CTC was significantly higher (p < 0.01) in pigs. Pig kidney samples collected in 1991-1997 had significantly higher incidences of TCAs and CTC (p < 0.01) residues than those in 1985-1986.
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Tanaka K, Suzuki T, Nojiri T, Yamagata T, Namikawa T, Matsuda Y. Characterization and chromosomal distribution of a novel satellite DNA sequence of Japanese quail (Coturnix coturnix japonica). J Hered 2000; 91:412-5. [PMID: 10994713 DOI: 10.1093/jhered/91.5.412] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A novel satellite DNA sequence of Japanese quail (Coturnix coturnix japonica) was isolated from genomic DNA digested with restriction endonuclease, Bg/II. Sequence analysis of three different-size clones revealed the presence of a tandem array of a GC-rich 41 bp repeated element. This sequence was localized by fluorescence in situ hybridization (FISH) primarily to microchromosomes of Japanese quail (2n = 78); approximately 50 of the 66 microchromosomes showed positive signals, although hybridization signals were also detected on chromosomes 4 and W. This satellite DNA did not cross-hybridize with genomic DNA of chicken (Gallus gallus) and Chinese painted quail (Excalfactoria chinensis) under moderately stringent conditions, suggesting that this class of repetitive DNA sequences was species specific and fairly divergent in Galliformes species.
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Shinkawa H, Yasuhara H, Naka S, Kuroda T, Nojiri T, Fujita T, Ishida Y, Nagao K, Wada N. Gastric carcinoma presenting with extensive extraluminal growth: report of a case. Surg Today 2000; 30:432-4. [PMID: 10819479 DOI: 10.1007/s005950050617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We report a 48-year-old-man with gastric carcinoma presenting with an unusual extraluminal growth. The patient underwent a barium meal examination and gastrofiberscopy because of progressive anemia over 6 months. These examinations revealed a Borrmann type 3 advanced gastric carcinoma of the greater curvature of the antrum. Biopsies showed moderately differentiated tubular adenocarcinoma. The intraoperative findings showed gastric carcinoma associated with extensive extraluminal invasion into the adjacent organs, i.e., the transverse colon and mesocolon. A palliative distal gastrectomy with a partial resection of the transverse colon was performed because of peritoneal dissemination found in the mesocolon and rectovesical pouch. A histological examination of the specimen confirmed adenocarcinoma which had massively infiltrated the transverse colon and mesocolon. His postoperative course was uneventful. However, he died of peritonitis carcinomatosa 9 months later.
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Shinkawa H, Wada N, Naka S, Yasuhara H, Kuroda T, Nojiri T, Inoue T, Fujita T, Furuya Y, Okazaki K, Nagao T, Nagao K. [A case of gastric cancer with multiple liver metastasis responding to combined chemotherapy with low-dose cisplatin and 5-fluorouracil]. Gan To Kagaku Ryoho 2000; 27:909-13. [PMID: 10897220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A 68-year-old man who had Borrmann type 4 gastric cancer with multiple liver metastases was admitted to our hospital on October 20, 1998. He was considered nonresectable and placed on neoadjuvant chemotherapy consisting of low-dose CDDP and 5-FU. After 9 weeks of administration, the liver metastases had disappeared on abdominal computed tomography, but the primary lesion had progressed. On May 12, 1999, a total gastrectomy with a partial resection of the transverse colon and resectional biopsy of a white nodule of the liver were performed. This was a non-curative operation because of the peritoneal dissemination. A histopathological examination of the liver nodule revealed that the cancer cells had disappeared. The patient had an uneventful postoperative course and 4 weeks of chemotherapy were added. He remains alive with no symptoms or re-growth of the liver metastatic tumor 4 months after the surgery.
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Sugishita Y, Shimizu T, Yao A, Kinugawa KI, Nojiri T, Harada K, Matsui H, Nagai R, Takahashi T. Lipopolysaccharide augments expression and secretion of vascular endothelial growth factor in rat ventricular myocytes. Biochem Biophys Res Commun 2000; 268:657-62. [PMID: 10679260 DOI: 10.1006/bbrc.2000.2165] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Vascular endothelial growth factor (VEGF), also known as vascular permeability factor, is highly expressed in the myocardium under various stimuli including hypoxia and ischemia. On the other hand, lipopolysaccharide (LPS) causes systemic inflammatory response syndrome (SIRS), which consists of systemic pathophysiological changes related to vascular hyperpermeability. To test the hypothesis that VEGF is one of the important mediators of SIRS, we examined effects of LPS on the VEGF expression and secretion in cultured neonatal rat ventricular myocytes. LPS (10 microg/ml) rapidly (within 1 h) augmented the levels of VEGF mRNA in these cells. Pharmacological inhibition of nucleic factor-kappaB or tyrosine kinases did not affect the LPS-induced augmentation of VEGF mRNA expression, while these treatments markedly suppressed the up-regulation of inducible nitric oxide synthase (iNOS) expression by LPS. The VEGF concentrations in the conditioned media were also significantly increased by the LPS treatment of 6 h. In conclusion, LPS augments VEGF expression and secretion in rat ventricular myocytes, suggesting that VEGF may be involved in pathogenesis of SIRS. LPS may induce VEGF mRNA through the signaling pathways that are distinct from those responsible for the iNOS induction.
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Karasawa T, Nojiri T, Hayashi Y, Maegawa T, Yamakawa K, Wang XM, Nakamura S. Laboratory diagnosis of toxigenic Clostridium difficile by polymerase chain reaction: presence of toxin genes and their stable expression in toxigenic isolates from Japanese individuals. J Gastroenterol 1999; 34:41-5. [PMID: 10204609 DOI: 10.1007/s005350050214] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Clostridium difficile causes pseudomembranous colitis and antibiotic-associated diarrhea. The definitive diagnosis of C. difficile infection is finally accomplished by the isolation of toxigenic C. difficile. However, only a small number of Japanese clinical laboratories are able to reach a definitive diagnosis of C. difficile infection, probably because simple reliable assays for toxins in the isolates are not available. In this study, we examined the compatibility of a polymerase chain reaction (PCR) assay and tissue culture assay to identify toxigenic C. difficile, in toxigenic and nontoxigenic C. difficile isolates from Japanese patients and healthy carriers. The specificity of PCR primers was demonstrated by restriction endonuclease digestion and seminested PCR in C. difficile VPI 10463 strain. No PCR product was amplified in the eight other clostridial species used to check the specificity of the PCR assay. The detection limit was 10(3) cells. Both toxin A and toxin B genes (the genes encoding the major virulence factors of C. difficile) were detected in 58 toxigenic C. difficile isolates, which showed a wide range of cytotoxic activity in tissue culture assays. Neither of the toxin genes was carried by 40 nontoxigenic strains of C. difficile. The results of this study strongly suggest that a definitive diagnosis of C. difficile infection can be accomplished by PCR detection of the toxin genes rather than by tissue culture assay of isolates.
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Karasawa T, Maegawa T, Nojiri T, Yamakawa K, Nakamura S. Effect of arginine on toxin production by Clostridium difficile in defined medium. Microbiol Immunol 1997; 41:581-5. [PMID: 9310936 DOI: 10.1111/j.1348-0421.1997.tb01895.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Twenty strains of Clostridium difficile were examined for the effect of arginine on toxin production in a defined medium. In three strains, the production of toxins A and B was greatly enhanced in the absence of arginine. These strains showed distinctively poorer growth in the absence of arginine in comparison with the remaining 17 strains, indicating that the presence of arginine is required for good growth among the three strains. From the present results, test strains were divided into two groups: a group in which arginine insufficiency caused distinctly poor growth and enhanced toxin production, and another group in which there was neither distinctly poor growth nor enhanced toxin production. The phenomenon is discussed in relation to the biosynthesis and catabolism of arginine.
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33
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Nakagawa K, Ohno K, Nojiri T, Hirakawa K. [Interdural dermoid cyst of the cavernous sinus presenting with oculomotor palsy: case report]. NO SHINKEI GEKA. NEUROLOGICAL SURGERY 1997; 25:847-51. [PMID: 9300456] [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 19-year-old female was admitted to our hospital because of diplopia. Neurological examination showed slight anisocoria (right > left), disturbance of ocular movement in upward, downward and medial directions on the right side, and diplopia on upward gaze. Computed tomography (CT) scan demonstrated a well-demarcated cystic lesion in the right parasellar region. The lesion showed non-homogeneous low intensity with a high intensity margin on T1-weighted imaging and high intensity with a low intensity margin on T2-weighted imaging in magnetic resonance image (MRI). The lesion showed enhancement by contrast media on neither CT nor MRI. Cerebral angiography revealed no tumor stains. The lesion was approached via right fronto-temporal craniotomy. The right optic nerve, oculomotor nerve and internal carotid artery were compressed medially by the tumor. The tumor contents appeared to be flaky and greasy containing motor-oil-like fluid, mineralized body, and a few hairs. The tumor was attached to the lateral wall of the right cavernous sinus (inner membranous layer), but was totally resected with careful microscopic dissection. The histopathological examination confirmed the diagnosis of dermoid cyst. The patient's complaint of diplopia showed gradual improvement postoperatively. Supratentorial intracranial dermoid cyst is a rare congenital tumor and, to our knowledge, only one case arising within the lateral wall of the cavernous sinus and presenting oculomotor palsy has been reported. Total removal is ideal and may be possible even when the tumor arises from the lateral wall of the cavernous sinus.
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Watambe J, Matsumoto C, Fujimura K, Shimada T, Yoshizawa H, Okamoto H, Iizuka H, Tango T, Ikeda H, Endo N, Mazda T, Nojiri T, Aoyama K, Kanemitsu K, Yamano H, Mizui M, Yokoishi F, Tokunaga K, Nishioka K. Predictive Value of Screening Tests for Persistent Hepatitis C Virus Infection Evidenced by Viraemia. Vox Sang 1993. [DOI: 10.1159/000462423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Tsuji M, Nakatani T, Nojiri T, Nishio H, Shima H, Hiroi Y, Ueno Y, Nishio I, Masuyama Y. A case of Sjögren's syndrome with valvular diseases. JAPANESE HEART JOURNAL 1986; 27:137-43. [PMID: 3487660 DOI: 10.1536/ihj.27.137] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The case of a 61 year old woman with Sjögren's syndrome with aortic and mitral stenosis is reported. She suffered from rheumatic fever at a young age. Physical and echocardiographic examinations showed findings of mitral and aortic valve stenosis. In addition, she had experienced xerostomia, a gritty sensation in the eyes and Raynaud's phenomenon. Blood examination showed hypergammaglobulinemia, positive rheumatoid factor, antinuclear and anti-Ro (SS-A) antibodies. The diagnosis of Sjögren's syndrome was confirmed by sialography and biopsy of the labial salivary gland. The combination of valvular disease and Sjögren's syndrome is rare and the etiological correlation is discussed.
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36
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Yamaguchi A, Kitamura N, Ohtaki M, Saso M, Nojiri T, Minochi T, Tamura H, Atobe M. [Use of ONLEP (On-line Epicardial Mapping)]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1985; 38:876-9. [PMID: 4087596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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37
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Akiyama K, Matsuyama N, Imabun S, Nojiri T, Furukawa H, Yamada M, Anzai N. [Case report of congenital bicuspid aortic valves associated with aortic valve prolapse and displacement of the coronary arteries]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1983; 36:909-14. [PMID: 6656034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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38
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Anzai N, Yamada M, Miyazawa S, Furukawa H, Matsuyama Y, Akiyama K, Nojiri T, Shioneri H. [Surgical management of patent ductus arteriosus with preoperative insertion of balloon catheter]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1983; 36:749-52. [PMID: 6632436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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39
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Kitaguchi T, Nojiri T, Suzuki S, Fukita T, Kawana T. EDPS of clinical case record and scientific document in the industry post-marketing surveillance of drugs. Methods Inf Med 1983; 22:135-48. [PMID: 6633266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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40
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Hoshino S, Miyake T, Nojiri T, Amano S, Tsuchida H, Endo M, Koyanagi H, Sekiguchi M. [A successful management of acute retrograde dissection of the aorta during aorto-coronary bypass grafting with ringed graft]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1983; 36:416-20. [PMID: 6603555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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41
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Nojiri T, Endo M, Koyanagi H, Obayashi N, Sekiguchi M. [Successful aortic valve replacement in rupture of an aneurysm of the sinus of Valsalva into the left ventricular cavity and aortic valve insufficiency associated with a complete form of Behcet's disease]. RINSHO KYOBU GEKA = JAPANESE ANNALS OF THORACIC SURGERY 1983; 3:224-32. [PMID: 6867558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Kitaguchi T, Nojiri T, Suzuki S, Fukita T, Kawana T. Selection of scientific periodicals to monitor drug safety information using Excerpta Medica and Japicdoc in the post marketing surveillance of drugs. DRUG INFORMATION JOURNAL 1982; 17:177-93. [PMID: 10265095 DOI: 10.1177/009286158301700307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In order to select important journals to be monitored for efficient collection of literature information on drug safety, a retrospective search was made of the safety information in the Excerpta Medica (EM) database between 1979 and 1981. The search provided 54,005 references to drug safety, which were found in a total of 2,536 journals. Fifty percent of the references appeared in only 148 journals, or 6% of all journals surveyed. A similar search, carried out using the Japicdoc (JD) database, provided 9,268 references in 172 journals. To cover all the necessary information appearing in overseas journals, however, a retrospective search of a bibliographic database is required as a cost-effective means to improve the comprehensiveness of the collection of information. In domestic journals, because JD includes fewer journals than EM, all of the 172 journals can be monitored for the collection of drug safety information.
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Abe T, Iyomasa Y, Murase M, Tanaka M, Koie K, Nojiri T. A case of bacteremia and disseminated intravascular coagulation after the conduit procedure for tetralogy of Fallot with pulmonary atresia. JAPANESE CIRCULATION JOURNAL 1982; 46:1098-104. [PMID: 7120653 DOI: 10.1253/jcj.46.1098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A case undergoing conduit procedure for tetralogy of Fallot with pulmonary atresia was complicated postoperatively by bacteremia due to non-fermentative Gram-negative rods and by disseminated intravascular coagulation. He was able to be cured without any sequela. The patient was a 16-year-old male, who had undergone Blalock-Taussig anastomosis in his infancy. The present operation was carried out as follows: ventricular septal defect was closed with a Teflon-patch and discontinuity between the right ventricle and the pulmonary artery was corrected using a Hancock's valved conduit. Two weeks after the operation, pleural effusion in the right chest cavity was shown by a chest X-ray film. On the 32nd postoperative day, high fever with chills occurred, and subsequently developed pulmonary edema, shock and hemorrhagic tendencies with petechia. Pseudomonas aeruginosa, Flavobacterium and Alcaligenes faecalis were detected by the culture of pleural effusion. The platelet count decreased to about 10,000/microliters. Carbenicillin, tobramycin and minocycline were administered for the infection, and heparin and aprotinin were used for disseminated intravascular coagulation. By these treatments for about 6 months, the patient became well and was discharged without any sequela.
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Shirahata A, Nojiri T, Takaragi S, Horiuchi T, Yamada K. Normotest screenings and prophylactic oral administration for idiopathic vitamin K deficiency in infancy. NIHON KETSUEKI GAKKAI ZASSHI : JOURNAL OF JAPAN HAEMATOLOGICAL SOCIETY 1982; 45:867-75. [PMID: 7136473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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45
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Nojiri T, Shirahata A. [A case of hemolytic uremic syndrome (HUS)--coagulation study during the prodromal phase (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1981; 22:1794-800. [PMID: 7339018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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46
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Yoshizawa H, Itoh Y, Iwakiri S, Kitajima K, Tanaka A, Nojiri T, Miyakawa Y, Mayumi M. Demonstration of two different types of non-A, non-B hepatitis by reinjection and cross-challenge studies in chimpanzees. Gastroenterology 1981; 81:107-13. [PMID: 6786948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Utilizing immune electron microscopy, viruslike particles were identified in the serums of three apparently healthy, HBsAg-negative blood donors. The serum from one of the donors, when injected into two susceptible chimpanzees, induced non-A, non-B hepatitis with an increase in SGPT level and pathological changes in the liver compatible with acute hepatitis but none of the cytoplasmic ultrastructures previously noted by electron microscopy in non-A, non-B hepatitis. These two chimps did not contract hepatitis when the same inoculum was given again 17 wk after the first injection. When they were subsequently challenged, however, by a chimp inoculum containing viruslike particles known to induce non-A, non-B hepatitis with cytoplasmic tubular ultrastructures, they developed high SGPT levels and these characteristic ultrastructures in their hepatocytes. A third chimp was initially injected with the chimp inoculum containing viruslike particles known to induce hepatitis with tubular ultrastructures, reinjected with the same agent, and then challenged by the human serum containing viruslike particles capable of inducing non-A, non-B hepatitis without tubular ultrastructures. He developed biochemical and pathological evidence of acute hepatitis after the first and the third, but not after the second inoculations. There are at least two kinds of viruslike particles which are associated with infectivity for two different types of non-A, non-B hepatitis; these have been tentatively designated NANB-1 and NANB-2.
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Yoshizawa H, Akahane Y, Itoh Y, Iwakiri S, Kitajima K, Morita M, Tanaka A, Nojiri T, Shimizu M, Miyakawa Y, Mayumi M. Viruslike particles in a plasma fraction (fibrinogen) and in the circulation of apparently healthy blood donors capable of inducing non-A/non-B hepatitis in humans and chimpanzees. Gastroenterology 1980; 79:512-20. [PMID: 6776003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Two patients who had received a fibrinogen preparation contracted hepatitis of non-A/non-B etiology 3 and 8 wk after the injection. A chimpanzee inoculated with the same preparation developed hepatitis 11 wk later, with an increase in SGPT and a liver pathology compatible with acute viral hepatitis. His preacute serum containing the presumptive etiologic agent induced hepatitis in another chimpanzee. Electron microscopic observation of the liver of these chimpanzees biopsied during preacute and acute stages revealed peculiar tubular structures composed of two unit membranes with electron-opaque material in between. Using the serum obtained from infected chimpanzees at convalescence as an antibody reagent, viruslike particles were identified in the fibrinogen preparation by immune electron microscopy. When the serum of 100 apparently healthy blood donors with SGPT value of 80 Karmen units/ml or higher was tested for viruslike particles, eight were found to be positive. Furthermore, one of these sera, when a 5-ml amount was injected into each of two chimpanzees, induced hepatitis with viruslike particles in the circulation and characteristic tubular changes in the liver. On the basis of the results obtained, the viruslike particles in the fibrinogen preparation, as well as in the circulation of apparently healthy donors, were capable of inducing hepatitis of non-A/non-B category with a liver pathology characterized by tubular structures. The detection of non-A/non-B viral particles, especially when refined to routine laboratory tests, may open the way for the specific diagnosis, exclusion of contaminated blood from transfusion, and eventual prophylaxis by vaccination.
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Shirahata A, Nojiri T, Yamada K, Meguro T. [Reactive thrombocytosis in infants and children (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1979; 20:1569-78. [PMID: 541845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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49
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Imai M, Yanase Y, Nojiri T, Miyakawa Y, Mayumi M. A receptor for polymerized human and chimpanzee albumins on hepatitis B virus particles co-occurring with HBeAg. Gastroenterology 1979; 76:242-7. [PMID: 103774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
A receptor for polymerized human serum albumin was demonstrated on Dane particles as well as on 20-nm hepatitis B surface antigen particles, isolated from asymptomatic carriers of hepatitis B virus who were positive for HBeAg. In contrast, such receptor was not born by 20-nm hepatitis B surface antigen particles obtained from carriers positive for antibody to HBeAg. Hepatitis B surface antigen particles with the receptor were heavier than those without, and when treated with pronase, they became lighter and lost the receptor. The receptor is responsible for the agglutination of erythrocytes coated with polymerized human serum albumin by the serum of patients with Type B hepatitis and asymptomatic carriers, which have been attributed to autoantibodies directed to denatured albumin molecules. When albumin fractions of chimpanzees were polymerized with glutaraldehyde, they also bound with the receptor on hepatitis B surface antigen. Polymerized albumin fractions of all the other experimental animals without susceptibility to hepatitis B virus, however, failed to bind with the receptor. These results seem to suggest a possible role of the receptor on Dane particles (presently accepted hepatitis B virions) for polymerized albumin molecules in infecting hepatocytes both in humans and chimpanzees.
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50
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Maki Y, Nojiri T. [Optimum irradiation, counting and cooling times for cyclic radioisotope production]. RADIOISOTOPES 1978; 27:27-9. [PMID: 635233 DOI: 10.3769/radioisotopes.27.27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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