401
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Yamadera S, Yamashita K, Akatsuka M, Kato N, Hashido M, Inouye S, Yamazaki S. Adenovirus surveillance, 1982-1993, Japan. A report of the National Epidemiological Surveillance of Infectious Agents in Japan. JAPANESE JOURNAL OF MEDICAL SCIENCE & BIOLOGY 1995; 48:199-210. [PMID: 8569045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The Infectious Agents Surveillance Center, the National Institute of Health, Japan, received 17,265 reports from 1982 to 1993 on cases from whom adenovirus was isolated or detected; 85% from 57 public health institutes and the other 15% from two national hospitals and two commercial diagnostic laboratories. The followings were found. Three major diseases caused by adenovirus were upper respiratory tract infection, gastroenteritis, and conjunctivitis. Patients of upper respiratory tract infection numbered 6,837 (40% of all patients due to adenovirus), the identified serotypes being in order of frequency types 3, 2, 1, and 5. Those of gastroenteritis numbered 1,636 (9.5%). From 40% of the gastroenteritis patients, adenovirus was detected by electron microscopy or immunochemical methods without cultivation. From the remaining 60%, virus was isolated in tissue culture; the serotypes of the isolates resembled those causing upper respiratory tract infection. Patients of conjunctivitis numbered 3,437 (20%), the frequency being in order of types 3, 4, 8, 37, and 19. Conjunctivitis due to types 3 and 4 prevailed every summer; type 3 was isolated often from children with pharyngo-conjunctival fever and the other four types were mostly from adults with epidemic keratoconjunctivitis. Type 3 had a unique feature not seen in other types: it was most frequently isolated, causing upper respiratory tract infection, gastroenteritis, conjunctivitis, and pharyngo-conjunctival fever. Reports on isolation of type 7, which has been reported to cause severe pneumonia in many other countries, were as few as 28 (0.2%).
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402
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Yamazaki S, Fujisawa T, Yanatori A, Yamakage A. A case of lichen myxedematosus with clearly exacerbated skin eruptions after UVB irradiation. J Dermatol 1995; 22:590-3. [PMID: 7560458 DOI: 10.1111/j.1346-8138.1995.tb03880.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We report a 48-year-old male with typical lichen myxedematosus, liver dysfunction, and diabetes mellitus. His skin eruptions were clearly exacerbated after accidental over-irradiation by UVB. These findings were clinically and histologically confirmed. The pathogenesis is still unknown, but we consider it to be due to Koebner phenomenon.
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403
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Wang X, Yamazaki S, Hashizume T, Shinohara H, Sakurai T. Reconstructed Sc2C84 monolayer on the Ag(111)1 x 1 surface. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:2098-2101. [PMID: 9981284 DOI: 10.1103/physrevb.52.2098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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404
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Yamazaki S, Inouye ST, Kuroda Y. TTX-resistant Ca2+ oscillation in cultured hypothalamus: similarity to the mammalian circadian pacemaker. Neuroreport 1995; 6:1306-8. [PMID: 7669992 DOI: 10.1097/00001756-199506090-00019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Dissociated cultures of rat hypothalamic cells showed spontaneous oscillations in intracellular Ca2+ with periods of 5-8 s (ultradian rhythm). Replacement of H2O by deuterium oxide in the culture medium lengthened the period of this oscillation, while tetrodotoxin did not inhibit the deuterium oxide sensitive Ca2+ oscillation. Since these characteristics resemble those of the mammalian circadian pacemaker, the ultradian Ca2+ rhythms may be involved in the circadian rhythm or have a similar rhythm generation mechanism. The gap junction inhibitor, halothane, stopped this oscillation. Gap junctions may be necessary in order to generate rhythmic oscillations.
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405
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Kasama K, Utsumi J, Matsuo-Ogawa E, Nagahata T, Kagawa Y, Yamazaki S, Satoh Y. Pharmacokinetics and biologic activities of human native and asialointerferon-beta s. J Interferon Cytokine Res 1995; 15:407-15. [PMID: 7648442 DOI: 10.1089/jir.1995.15.407] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Glycoproteins are metabolized through an asialoglycoprotein metabolic pathway in vivo. They are desialylated and taken up by the liver via an asialoglycoprotein receptor. Fibroblast-derived natural human interferon-beta is a glycoprotein having a single asparagine-linked sugar chain. Although natural human interferon-beta may also be metabolized through this pathway, there is very little information about the biologic features of human asialointerferon-beta. We evaluated the pharmacokinetics and biologic activities of human native and asialointerferon-beta s. After intravenous administration to rabbits, human asialointerferon-beta was cleared from the blood circulation faster than the human native interferon-beta. More asialoprotein was distributed to the liver than the native type, but it induced less 2'5'-oligoadenylate synthetase. The human asialointerferon-beta had less activity than the human native interferon-beta on cell growth inhibition and 2'5'-oligoadenylate synthetase induction in Hep-G2 and HuH6 human hepatoblastoma cells. Southern blotting using a hepatitis B virus-transfected HuH6 cell line, HB611, revealed that the inhibition of hepatitis B virus DNA replication by the asialoprotein was weaker than that by the native protein. The results showed that the different effects exerted by the human native and asialointerferon-beta s may be a result of recognition of the sugar chains by rabbit hepatocytes or by human hepatoblastoma cells. The results also suggested that the terminal sialic acid of the sugar chains in natural human interferon-beta significantly affects its pharmacokinetics and biologic activities.
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406
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Goseki N, Yamazaki S, Shimojyu K, Kando F, Maruyama M, Endo M, Koike M, Takahashi H. Synergistic effect of methionine-depleting total parenteral nutrition with 5-fluorouracil on human gastric cancer: a randomized, prospective clinical trial. Jpn J Cancer Res 1995; 86:484-9. [PMID: 7790321 PMCID: PMC5920843 DOI: 10.1111/j.1349-7006.1995.tb03082.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Methionine-depleting total parenteral nutrition (Met-depleting TPN), infusing AO-90 amino acid solution (lacking both L-methionine and L-cysteine) as a sole nitrogen source, showed synergistic effects with 5-fluorouracil (5-FU) in tumor-bearing rats and in clinical trials with gastrointestinal tract cancers. In this study, the effect of Met-depleting TPN with 5-FU upon thymidylate synthase (TS) activity was examined, and the histological effect of this treatment on human gastric cancer was evaluated. Fourteen preoperative advanced gastric cancer patients were divided randomly into two groups. Seven cases were given Met-depleting TPN for 7 days before surgery with continuous intravenous administration of 5-FU (500 mg/body per day; total 4.0 g/body) (AO-90 group). The other 7 received conventional L-methionine-containing TPN with 5-FU (control group). All patients underwent gastrectomy without complications due to these treatments. Resected materials were examined for TS kinetics, and the anti-cancer effect was also assessed histopathologically. The specimens in the AO-90 group showed marked degeneration of cancer, while almost no effect was seen in the control group. The free TS activity of carcinoma tissue in the AO-90 group was decreased and the TS inhibition rate was increased in comparison with the control group (P = 0.0165 and P = 0.0243, respectively). Met-depleting TPN appears to play a role as a biomodulator of 5-FU in human gastric cancer.
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407
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Nakamura Y, Yamamoto N, Sakai K, Okubo A, Yamazaki S, Takano T. Purification and characterization of angiotensin I-converting enzyme inhibitors from sour milk. J Dairy Sci 1995; 78:777-83. [PMID: 7790570 DOI: 10.3168/jds.s0022-0302(95)76689-9] [Citation(s) in RCA: 535] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The inhibitory activity of angiotensin I-converting enzyme in milk increased during fermentation with the Calpis sour milk starter containing Lactobacillus helveticus and Saccharomyces cerevisiae. Two kinds of peptides inhibitory to angiotensin I-converting enzyme were purified from the sour milk by using four-step HPLC. The amino acid sequences of these inhibitors were identified as Val-Pro-Pro and Ile-Pro-Pro. The concentrations of peptides providing 50% inhibition of angiotensin I-converting enzyme were 9 and 5 microM, respectively. Most of the inhibitory activity in sour milk was attributed to these two peptides.
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408
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Ohara M, Ishihara K, Abe T, Yamazaki S, Miura T, Tanabe Y, Kusano M, Okayasu T, Hosokawa M, Fujita M. [Histological effect and prognosis after preoperative chemotherapy in esophageal cancer]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1995; 43:238-46. [PMID: 7745829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Preoperative chemotherapy for esophageal cancer was performed and the toxic effects, post-operative complications, histological effects and survival time were evaluated. Toxic effects and post-operative complications were rare. The histological effect was evaluated according to the Guidelines for Clinical and pathologic studies on carcinoma of the esophagus by the Japanese Society for Esophageal Disease. A histological effect of more than Grade II was seen from 25 to 42.1%. A significant difference was seen in the Kaplan-Meier survival curves between the response group and the no response group (p < 0.05). If we perform preoperative chemotherapy for esophageal cancer only to responsive cases determined by chemosensitivity tests, the prognosis of advanced esophageal cancer may be improved.
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409
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Kobune F, Funatu M, Takahashi H, Fukushima M, Kawamoto A, Iizuka S, Sakata H, Yamazaki S, Arita M, Xu W. Characterization of measles viruses isolated after measles vaccination. Vaccine 1995; 13:370-2. [PMID: 7793133 DOI: 10.1016/0264-410x(95)98259-d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Seven measles virus (MV) strains were isolated from children who developed clinical signs of fever and rash 3-9 days after measles vaccination. The nucleotide sequence of the H gene, the molecular size of the H protein, the haemadsorption activity on African green monkey red blood cells, and antigenicity as determined by virus neutralization revealed that one strain was of the vaccine type and the remaining six were the wild virus type. Isolation of the virus directly from patients suspected of a vaccine-induced side-reaction and subsequent characterization of such isolated virus may be useful in differentiation between vaccine-induced side-reactions and natural measles.
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410
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Abo M, Tachibana M, Okubo A, Yamazaki S. Enantioselective deoxygenation of alkyl aryl sulfoxides by DMSO reductase from Rhodobacter sphaeroides f.s. denitrificans. Bioorg Med Chem 1995; 3:109-12. [PMID: 7796044 DOI: 10.1016/0968-0896(95)00004-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The substrate specificity and enantioselectivity of DMSO reductase from Rhodobacter sphaeroides f.s. denitrificans were studied on a series of alkyl aryl sulfoxides as substrate. The enzyme was found to catalyze deoxygenation of (S)-sulfoxides predominantly. (R)-Sulfoxides were recovered with a high enantiomeric excess.
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411
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Miwa S, Kawasaki S, Makuuchi M, Miyasaka M, Yamazaki S, Sekiguchi M, Isobe M. Role of ICAM-1 and LFA-1 in a cardiac xenograft rejection model. Transplant Proc 1995; 27:111-2. [PMID: 7878820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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412
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Ogawa S, Yamazaki S, Okamoto H, Fukuda S, Iemori S, Taguchi S. [Effect of weightlessness simulation on skeletal muscle histochemistry and bone metabolism of spontaneously hypertensive rats]. NIHON SEIRIGAKU ZASSHI. JOURNAL OF THE PHYSIOLOGICAL SOCIETY OF JAPAN 1995; 57:419-426. [PMID: 8568694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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413
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Yamazaki S, Satomura Y, Suzuki T, Arai K, Honda M, Takabayashi K. The concept of "template" assisted electronic medical record. MEDINFO. MEDINFO 1995; 8 Pt 1:249-252. [PMID: 8591165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A new design for an electronic medical record with flexible template generation was developed. The "template" in this paper refers to one of the tools that calls a user's attention to entering the data items for each problem or to ordering tests when they are due. The template shows the patient's previous data and guides physicians to record the consistent description. Two kinds of medical data dictionaries are prepared. Data representations of signs, symptoms, laboratory tests, and other examinations are defined in the check items dictionary. The problem dictionary contains the possible patient problems with relation to check items and other kinds of related subjects. This system provides Problem Oriented Medical Record (POMR) and the graphical presentation of various patient data. The system was designed to establish a constant and integrated medical record.
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414
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Isobe M, Suzuki J, Yagita H, Okumura K, Yamazaki S, Nagai R, Yazaki Y, Sekiguchi M. Immunosuppression to cardiac allografts and soluble antigens by anti-vascular cellular adhesion molecule-1 and anti-very late antigen-4 monoclonal antibodies. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1994; 153:5810-8. [PMID: 7527450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Effective activation of T cells in immune responses depends on two signals, one from the CD3/TCR complex and another from accessory cell surface proteins. Very late Ag-4 (VLA-4) can exert a costimulatory function upon binding with vascular cellular adhesion molecule-1 (VCAM-1). We investigated the effects of mAbs against VCAM-1 and VLA-4 on cardiac allograft survival and humoral response to soluble Ags. BALB/c hearts were transplanted into C3H/He recipients. mAbs (100 micrograms/day) were administered i.p. for the first 6 days. Graft survival in mice treated with M/K-2 (anti-VCAM-1; median survival: 20 days, n = 6) and those treated with PS/2 (anti-VLA-4; 30 days, n = 6) was greater than that in control mice (8 days, n = 7). Eight of 18 mice treated with both M/K-2 and PS/2 accepted the grafts over 65 days, and five of them accepted the grafts over 100 days. Allografts treated with the two mAbs showed scattered infiltration of leukocytes without evidence of active rejection at 65 days. Mice with long-surviving cardiac grafts were challenged with skin grafts from donor and third-party (C57BL/6) strains. Survival of the donor-type skin was significantly greater than that of the third-party skin. One mouse specifically accepted the donor-type skin indefinitely (> 150 days). FACS analysis of splenocytes at 55 days after transplantation showed complete recovery of VLA-4 expression from a down-regulation observed at day 7. In addition, mice immunized with heat-aggregated human gamma-globulin did not produce specific Ab, even after boost immunization, if PS/2 was administered at the time of the first immunization. This unresponsiveness to xenogeneic protein lasted for more than 50 days. These results indicate that in vivo administration of anti-VCAM-1 and anti-VLA-4 mAbs induces specific immunosuppression to cardiac allografts and soluble Ags.
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415
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Isobe M, Suzuki J, Yagita H, Okumura K, Yamazaki S, Nagai R, Yazaki Y, Sekiguchi M. Immunosuppression to cardiac allografts and soluble antigens by anti-vascular cellular adhesion molecule-1 and anti-very late antigen-4 monoclonal antibodies. THE JOURNAL OF IMMUNOLOGY 1994. [DOI: 10.4049/jimmunol.153.12.5810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Effective activation of T cells in immune responses depends on two signals, one from the CD3/TCR complex and another from accessory cell surface proteins. Very late Ag-4 (VLA-4) can exert a costimulatory function upon binding with vascular cellular adhesion molecule-1 (VCAM-1). We investigated the effects of mAbs against VCAM-1 and VLA-4 on cardiac allograft survival and humoral response to soluble Ags. BALB/c hearts were transplanted into C3H/He recipients. mAbs (100 micrograms/day) were administered i.p. for the first 6 days. Graft survival in mice treated with M/K-2 (anti-VCAM-1; median survival: 20 days, n = 6) and those treated with PS/2 (anti-VLA-4; 30 days, n = 6) was greater than that in control mice (8 days, n = 7). Eight of 18 mice treated with both M/K-2 and PS/2 accepted the grafts over 65 days, and five of them accepted the grafts over 100 days. Allografts treated with the two mAbs showed scattered infiltration of leukocytes without evidence of active rejection at 65 days. Mice with long-surviving cardiac grafts were challenged with skin grafts from donor and third-party (C57BL/6) strains. Survival of the donor-type skin was significantly greater than that of the third-party skin. One mouse specifically accepted the donor-type skin indefinitely (> 150 days). FACS analysis of splenocytes at 55 days after transplantation showed complete recovery of VLA-4 expression from a down-regulation observed at day 7. In addition, mice immunized with heat-aggregated human gamma-globulin did not produce specific Ab, even after boost immunization, if PS/2 was administered at the time of the first immunization. This unresponsiveness to xenogeneic protein lasted for more than 50 days. These results indicate that in vivo administration of anti-VCAM-1 and anti-VLA-4 mAbs induces specific immunosuppression to cardiac allografts and soluble Ags.
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416
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Yamazaki S, Ishida Y, Inouye S. Circadian rhythms of adenosine triphosphate contents in the suprachiasmatic nucleus, anterior hypothalamic area and caudate putamen of the rat--negative correlation with electrical activity. Brain Res 1994; 664:237-40. [PMID: 7895035 DOI: 10.1016/0006-8993(94)91978-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Contents of adenosine triphosphate (ATP) in the suprachiasmatic nucleus (SCN), anterior hypothalamic area (AH) and caudate putamen (CPu) were determined every 4 h in rats kept under constant dark conditions. All tested regions of the brain exhibited circadian rhythms in ATP content. Among these, the amplitude of the rhythm was largest in the SCN. Peaks of the ATP content were observed at circadian time 18 in the SCN, 6 in the AH and 10 in the CPu. In view of the observation that at around these peak times electrical or glucose uptake activity of each brain region was lowest, the present result suggests that ATP content is negatively correlated with electrical or glucose uptake activity.
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417
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Suzuki H, Eshima K, Takagaki Y, Hanaoka S, Katsuki M, Yokoyama M, Hasegawa T, Yamazaki S, Shinohara N. Origin of a T cell clone with a mismatched combination of MHC restriction and coreceptor expression. THE JOURNAL OF IMMUNOLOGY 1994. [DOI: 10.4049/jimmunol.153.10.4496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Although the existence of a large number of CD8+ class II MHC-specific CTLs had long been noticed, the origin of such T cells with a discordant combination of specificity and phenotype has been a mystery in the positive selection model. Recent reports suggesting the independency of the positive selection of T cells from coreceptor-mediated signals raised a possibility that they might be the progeny of putative transitional, mismatched, single-positive cells appearing before positive selection as proposed in the stochastic/selective model. By developing transgenic mice carrying TCR alpha and beta chain genes of a CD8+ class II MHC Ag-specific allogeneic CTL clone QM11, the origin of such T cells with mismatched TCR specificity and coreceptor expression was studied. The results indicate that QM11 belongs to a conventional CD8+ T cell population whose maturation is dependent on a class I (or class I-like) MHC product. Consequently, the reactivity of QM11 to I-Ak can be considered to be an accidental cross-reaction.
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418
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Suzuki H, Eshima K, Takagaki Y, Hanaoka S, Katsuki M, Yokoyama M, Hasegawa T, Yamazaki S, Shinohara N. Origin of a T cell clone with a mismatched combination of MHC restriction and coreceptor expression. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1994; 153:4496-507. [PMID: 7525706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Although the existence of a large number of CD8+ class II MHC-specific CTLs had long been noticed, the origin of such T cells with a discordant combination of specificity and phenotype has been a mystery in the positive selection model. Recent reports suggesting the independency of the positive selection of T cells from coreceptor-mediated signals raised a possibility that they might be the progeny of putative transitional, mismatched, single-positive cells appearing before positive selection as proposed in the stochastic/selective model. By developing transgenic mice carrying TCR alpha and beta chain genes of a CD8+ class II MHC Ag-specific allogeneic CTL clone QM11, the origin of such T cells with mismatched TCR specificity and coreceptor expression was studied. The results indicate that QM11 belongs to a conventional CD8+ T cell population whose maturation is dependent on a class I (or class I-like) MHC product. Consequently, the reactivity of QM11 to I-Ak can be considered to be an accidental cross-reaction.
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419
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Abstract
Some surprising facts about the most productive institutions emerge when Japanese life-science research is subject to a novel type of assessment.
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420
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Takebe Y, Sato H, Taniguchi K, Tomita Y, Ono A, Oka S, Miyakuni T, Imai M, Pau CP, Ou CY, Weniger B, Kimura S, Shimada K, Yamazaki S. Molecular epidemiology of HIV-1 infections in asia. PATHOPHYSIOLOGY 1994. [DOI: 10.1016/0928-4680(94)90151-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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421
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Konishi K, Mukoyama A, Müller W, Yamazaki S, Ushijima H. Effect of poly(I).poly(C12U) (Ampligen) on enteric virus (rotavirus, poliovirus and Coxsackie B3 virus) infections. Lett Appl Microbiol 1994. [DOI: 10.1111/j.1472-765x.1994.tb00483.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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422
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Uchiyama K, Tanimura H, Ishimoto K, Murakami K, Nakai T, Yamazaki S. Extracorporeal shock wave lithotripsy (ESWL) for biliary stones: a nationwide survey in Japan. NIHON GEKA HOKAN. ARCHIV FUR JAPANISCHE CHIRURGIE 1994; 63:199-207. [PMID: 7575084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
To assess the current status of extracorporeal shock wave lithotripsy (ESWL) for the treatment of gall-stones in Japan, we conducted a nationwide survey by sending a questionnaire to 251 institutions using this therapy. Replies were obtained from 50 institutions. The use of ESWL was investigated over the period from its introduction up to October 1992. ESWL was performed on 2,760 of 10,058 patients with gallstones (27.4%). The stones were completely pulverized in 1,021 of these 2,760 patients (37.0%). Complete disappearance was limited to single gallstones less than 20 mm in maximum diameter. A comparison in the number of ESWL sessions revealed no significant difference between the patients with and without a good response. Choledocholithiasis was resolved completely in 44.0% of 157 patients who underwent ESWL for this condition and intrahepatic stones were cured in 18.7% of 32 patients. Therefore, ESWL may be a useful form of conservative therapy for biliary calculi.
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423
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Kurimoto S, Yamazaki S, Ishida Y. Epidermal cyst presenting as an intrascrotal tumour. BRITISH JOURNAL OF UROLOGY 1994; 74:528-9. [PMID: 7820443 DOI: 10.1111/j.1464-410x.1994.tb00444.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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424
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Fukunaga A, Ichinohe T, Yamazaki S. Sedative and Antinociceptive Effects of Intravenous R-Phenylisopropyladensine(R-PIA) Compared with Those of Diazepam and Morphine. Anesthesiology 1994. [DOI: 10.1097/00000542-199409001-00833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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425
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Utagawa ET, Nishizawa S, Sekine S, Hayashi Y, Ishihara Y, Oishi I, Iwasaki A, Yamashita I, Miyamura K, Yamazaki S. Astrovirus as a cause of gastroenteritis in Japan. J Clin Microbiol 1994; 32:1841-5. [PMID: 7989529 PMCID: PMC263888 DOI: 10.1128/jcm.32.8.1841-1845.1994] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We used an enzyme immunoassay (EIA) to screen for astrovirus in stool specimens from outbreaks and sporadic cases of gastroenteritis collected between 1982 and 1992 in six prefectural public health institutes in Japan. Three outbreaks of gastroenteritis involving schoolchildren and adults were confirmed to be attributable to astrovirus. Astrovirus was detected in 6 to 10% of the specimens from patients with sporadic gastroenteritis from whom no other bacterial or viral agent had been identified. Among the sporadic cases, astrovirus was most frequently detected in infants less than 1 year of age, and the incidence peaked in March and April. Using specimens from recent outbreaks, we found that the EIA was more sensitive than electron microscopy (EM) for the detection of astrovirus, and many EM-negative specimens were positive by EIA. However, some stool specimens previously found to have astrovirus-like particles by EM were negative by EIA, perhaps because of inadequate storage conditions, such as long-term storage and repeated freezings and thawings. Our results indicate that astrovirus is more commonly associated with childhood gastroenteritis than has been previously appreciated and suggest that further studies to examine the epidemiology and disease burden of this virus are needed.
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