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Chamney P, Moissl U, Wabel P, Amato C, Stuard S, Menzer M, Vollmeier C, Williams G, Shrivastava R, Chess J, Catling E, Brown C, Baker E, Ashcroft R, Mikhail A, Djukanovic L, Djuric Z, Knezevic V, Lazarevic T, Ljubenovic S, Markovic R, Rabrenovic V, Marinkovic J, Dimkovic N, Lebourg L, Ridel C, De Preneuf H, Le Roy F, Petitclerc T, Wester M, Simonis F, Kooman JP, Boer WH, Gerritsen KGF, Joles JA, Yamamoto KI, Eguchi K, Hirakawa S, Murakami J, Akiba T, Mineshima M, Stamopoulos D, Mpakirtzi N, Lavranos A, Panagiotou M, Barbarousi D, Matsouka C, Grapsa E, Abbas SR, Zhu F, Kaysen GA, Kotanko P, Levin NW, Vasilevsky A, Konoplev G, Stepanova O, Rubinsky A, Zemchenkov A, Gerasimchuk R, Frorip A, Abe T, Yamamoto KI, Ishimori I, Eguchi K, Murakami J, Mineshima M, Akiba T, Kusztal M, Go Biowski, T, Letachowicz K, Koni Ski P, Witkowski G, Pozna Ski P, Weyde W, Klinger M, Ito M, Ito S, Suzuki M, Masakane I, Navarro D, Goncalves C, Ferreira AC, Jorge C, Gil C, Aires I, Matias P, Mendes M, Azevedo A, Gomes F, Ferreira A, Perazzini C, Scutiero L, Brighenti L, Surace A, Steckiph D, Rovatti P, Severi S, Soltysiak J, Warzywoda A, Musielak A, Ostalska-Nowicka D, Zachwieja J, Goeksel T, Garnier H, Ritzerfeld M, Mann H, Babinet F, Allard B, Todorova V, Hamont C, Begri R, Dekker M, Taks M, Konings C, Scharnhorst V, Borawski J, Gozdzikiewicz-Lapinska J, Naumnik B, Lodi CA, Surace A, Grandi E, Rovatti P, Mancini E, Santoro A, Sereni L, Caiazzo M, Corazza L, Atti M, Palladino G, Sakurai K, Saito T, Hosoya H, Yamauchi F, Kurihara T, Tanibayashi Y, Ikebe N, Antonic M, Gubensek J, Drozg A, Vannier E, Mattio E, Todorova V, Ragon A, Brunet P, Klimm W, Pleskacz K, Pietrzak B, Niemczyk S, Leypoldt JK, Bernardo A, Muller M, Marbury TC, Culleton BF, Zeraati AA, Hekmat R, Reyhani HR, Sharifipoor F, Bolasco P, Sitzia I, Monni A, Mereu MC, Pinna AM, Logias F, Ghisu T, Passaghe M, Gazzanelli L, Ganadu M, Piras A, Cossu M, Contu B, Palleschi S, Rossi B, Atti M, Caiazzo M, Sereni L, Palladino G, Ghezzi PM, Kron S, Schneditz D, Leimbach T, Aign S, Kron J, Seker Kockara A, Kayatas M, Huzmeli C, Candan F, Yilmaz MB, Ahmed BA, Bejosano CN, Samra Abouchacra SA, Al Falahi SZ, Abdul Moniem KM, Dastoor H, Kim S, Oh J, Sin Y, Kim J, Lee J. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shimauchi T, Sasada K, Kito Y, Mori T, Hata M, Fujiyama T, Ito T, Hirakawa S, Tokura Y. CD8+ Sézary syndrome with interleukin-22 production modulated by bacterial sepsis. Br J Dermatol 2013; 168:881-3. [PMID: 23013419 DOI: 10.1111/bjd.12051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Shimauchi T, Yagi H, Sasada K, Kito Y, Ito T, Hirakawa S, Tokura Y. Characterization of a malignant T-cell line established from a rare case of CD8+ CD56+ Sézary syndrome. Br J Dermatol 2012; 168:885-7. [PMID: 23013154 DOI: 10.1111/bjd.12058] [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: 10/27/2022]
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Katsuta T, Kanata A, Nakamura K, Tsukamoto H, Tazaki Y, Hirakawa S, Inoue S, Takashima T. [A pregnant case on which EC-IC bypass was successfully performed in the acute phase of brain infarction]. No Shinkei Geka 2012; 40:181-186. [PMID: 22281472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A 30 year-old, 28 weeks-pregnant woman (gravida 2, para 2) suffered from a sudden onset of aphasia when she was having a chat in the upright position. Although the initial symptom soon disappeared, transient attacks of aphasia combined with weakness in the right arm occurred intermittently, particularly when she uprose. MR image disclosed a small acute infarcted focus at the genu of the left internal capsule, while MRA showed an occlusion of the intracranial portion of the left internal carotid artery. She was treated conservatively, but the transient attack continued and her consciousness was slightly lowered. Since repeated examination revealed no recanalization of the occluded artery, treatment was reinforced by using heparin and dopamine on day 1. However, her consciousness was not improved, and dopamine evoked nausea and vomiting. On day 2, superficial temporal artery to middle cerebral artery (STA-MCA) anastomosis was carried out. Soon after surgery, she regained alertness and the transient attack subsided. Examinations could not clarify the course of the occlusion. She was treated with heparin until she delivered a sound baby in the 37th week. Although STA-MCA anastomosis for acute ischemic stroke is still debatable, it may be a good option even for a pregnant woman when suffering from intractable progressing stroke.
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Affiliation(s)
- Toshiro Katsuta
- Department of Neurosurgery, Kitakyushu Municipal Medical Center, Japan
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Ikawa T, Kasuya A, Hirakawa S, Tokura Y. Raynaud phenomenon, digital gangrene and hypergammaglobulinaemic purpura occurring in a patient with IgG4-related disease. Br J Dermatol 2011; 165:1364-6. [DOI: 10.1111/j.1365-2133.2011.10609.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Hirakawa S, Tanemura A, Mori H, Katayama I, Hashimoto K. Multiple lymphadenopathy as an initial sign of extramammary Paget disease. Br J Dermatol 2010; 164:200-3. [PMID: 20849466 DOI: 10.1111/j.1365-2133.2010.10052.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Extramammary Paget disease (EMPD) often develops in external genitalia. Paget cells can, however, adopt an invasive phenotype and metastasize to regional lymph nodes and beyond, leading to poor patient outcomes. Based on this clinical observation, multiple lymphadenopathy may represent an initial sign of EMPD. To address the potential significance of multiple lymph node swelling in EMPD, we report two patients with cutaneous primary EMPD who showed multiple lymphadenopathy as an initial sign during the clinical course of the disease as well as tumour metastasis. Significantly, marked lymphatic vessel growth was observed in regional lymph nodes that underwent massive tumour cell invasion. Therefore, nodal lymphangiogenesis may promote tumour cell invasion and metastasis to distant organs, including the lymph nodes, emphasizing the clinical relevance of multiple lymphadenopathy.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan.
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Miyagawa I, Watanabe T, Isoyama T, Honda M, Kobayasi N, Hikita K, Saito M, Hirakawa S. Experience with injections of botulinum toxin type A into the detrusor muscle. Aktuelle Urol 2010; 41 Suppl 1:S24-6. [PMID: 20094947 DOI: 10.1055/s-0029-1224660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION We evaluated the effects of intra-vesical injection of botulinum toxin type A in the detrusor muscle in patients with neurogenic overactive bladder (OAB), patients with non-neurogenic overactive bladder and patients with interstitial cystitis. MATERIALS AND METHODS Between January 2003 and December 2006 we treated 30 patients with 100 I. U. to 300 I. U. of botulinum toxin A in the detrusor muscle. Patients were clinically and urodynamically followed up for 4, 12 and 36 weeks thereafter. RESULTS Neurogenic overactive bladder: of the 19 injected doses, 18 (94.7%) in 7 patients were judged as effective, and 1 (5.2%) of 200 U of BTX-A was judged as ineffective. Mean bladder volume increased from 137 to 396 ml. Non-neurogenic overactive bladder: of 7 injections, 6 (85.7%) were judged effective in 5 patients. Mean bladder volume increased from 149 to 322 ml. Interstitial cystitis: in all 4 patients the treatments were deemed ineffective. CONCLUSIONS Injecting 300 units of BTX-A into 30 sites in the muscle located in the body of the bladder region is effective for neurogenic bladder patients with intermittent catheterization who have urge and reflective types of incontinence. Injections of 100 and 200 units of BTX-A to treat non-neurogenic overactive bladder with urinary incontinence provided together without retention. The optimal dose of BTX-A requires further investigation. Injection with 200 units of BTX-A was not useful against interstitial cystitis. None of the patients developed any adverse effects after injecting the bladder wall with BTX-A.
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Dai X, Sayama K, Tohyama M, Shirakata Y, Yang L, Hirakawa S, Tokumaru S, Hashimoto K. The NF- B, p38 MAPK and STAT1 pathways differentially regulate the dsRNA-mediated innate immune responses of epidermal keratinocytes. Int Immunol 2008; 20:901-9. [DOI: 10.1093/intimm/dxn048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wada N, Masudo K, Nakayama H, Suganuma N, Matsuzu K, Hirakawa S, Rino Y, Masuda M, Imada T. Clinical outcomes in older or younger patients with papillary thyroid carcinoma: Impact of lymphadenopathy and patient age. Eur J Surg Oncol 2008; 34:202-7. [DOI: 10.1016/j.ejso.2007.10.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2007] [Accepted: 10/08/2007] [Indexed: 10/22/2022] Open
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Rajesh K, Chandra MS, Hirakawa S, Kawamata J, Radhakrishnan TP. Polyelectrolyte templating strategy for the fabrication of multilayer hemicyanine Langmuir-Blodgett films showing enhanced and stable second harmonic generation. Langmuir 2007; 23:8560-8. [PMID: 17622162 DOI: 10.1021/la7009622] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Polyelectrolyte templating effectively suppresses the aggregation of cationic hemicyanine-based amphiphiles in monolayer Langmuir-Blodgett (LB) films leading to enhanced and stable optical second harmonic generation (SHG). The current study explores the impact of different polyelectrolytes (salts of poly(4-styrenesulfonic acid), deoxyribonucleic acid, and carboxymethylcellulose) on the mode of formation of multilayer LB films of the hemicyanine amphiphile and their SHG response. Pressure-area isotherms and Brewster angle microscopy reveal the impact of the polyelectrolyte complexation on the Langmuir films. Transfer ratios observed during film deposition, supported by electronic absorption spectra and atomic force microscope images of the multilayer LB films, suggest that the polyanions influence the deposition sequence, leading to significant variations in the SHG. Carboxymethylcellulose is identified as an optimal template that induces favorable z-type deposition, leading to the formation of stable multilayer films. These films exhibit the expected quadratic increase of SHG with the extent of deposition; significantly the film response is very stable under extended laser irradiation. It is proposed that structural adjustments of the sandwiched polymer layer lead to the observed deposition sequence and film stability. Polyelectrolyte templating is demonstrated to be a simple and effective strategy for the fabrication of multilayer LB films to elicit efficient quadratic nonlinear optical response.
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Affiliation(s)
- K Rajesh
- School of Chemistry, University of Hyderabad, Hyderabad-500 046, India
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Abstract
BACKGROUND Characterization of mechanisms that can reverse residual damage from prior skin exposure to ultraviolet (UV) would be of considerable biological and therapeutic interest. Topical caffeine application to mouse skin that had previously been treated with UV has been shown to inhibit the subsequent development of squamous cell carcinomas. OBJECTIVES We used an established mouse photodamage model to investigate other possible effects of topical caffeine application after UV. METHODS SKH-1 hairless mice were treated with ultraviolet B (UVB) followed immediately by topical application of caffeine or vehicle three times weekly for 11 weeks. RESULTS Caffeine applied topically after UV treatment resulted in a significant decrease in UV-induced skin roughness/transverse rhytides as assessed by treatment-blinded examiners. Histologically, topical caffeine application after a single dose of UVB more than doubled the number of apoptotic keratinocytes as evaluated by sunburn cell formation, caspase 3 cleavage and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labelling (TUNEL) staining. A trend towards decreased solar elastosis was noted in the caffeine-treated group although this was not statistically significant. Other histological parameters including epidermal hyperplasia, solar elastosis and angiogenesis were increased in mice treated with UV but topical application of caffeine did not alter these particular UV effects. CONCLUSIONS These findings support the concept that topical application of caffeine to mouse skin after UV irradiation promotes the deletion of DNA-damaged keratinocytes and may partially diminish photodamage as well as photocarcinogenesis.
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Affiliation(s)
- S-W Koo
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02129, USA
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Hirakawa S, Ota N, Shimaoka M, Man W, Yamamoto K. Relationship between the average projected area of corneocytes and the onset age of atopic dermatitis in childhood. Int J Cosmet Sci 2006. [DOI: 10.1111/j.1467-2494.2006.00335_2.x] [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: 11/30/2022]
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Nomiya K, Yoshizawa A, Kasuga NC, Yokoyama H, Hirakawa S. Synthesis, solid-state characterization and antimicrobial activities of three different polymorphs of a copper(II) complex with 4-isopropyltropolone (hinokitiol). Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2003.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nomiya K, Yoshizawa A, Tsukagoshi K, Kasuga NC, Hirakawa S, Watanabe J. Synthesis and structural characterization of silver(I), aluminium(III) and cobalt(II) complexes with 4-isopropyltropolone (hinokitiol) showing noteworthy biological activities. Action of silver(I)-oxygen bonding complexes on the antimicrobial activities. J Inorg Biochem 2004; 98:46-60. [PMID: 14659632 DOI: 10.1016/j.jinorgbio.2003.07.002] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Through two unequivalent oxygen donor atoms of the hinokitiol (Hhino; C10H12O2; 4-isopropyltropolone) ligand that showed noteworthy biological activities, the dimeric, silver(I)-oxygen bonding complex [Ag(hino)]2 1, the monomeric aluminium(III) complex [Al(hino)3].0.5H2O 4 and the cobalt(II) complex "[Co(hino)2]2.H2O" 6 were synthesized and characterized with elemental analysis, thermogravimetric and differential thermal analysis (TG/DTA), FTIR and solution (1H and 13C) NMR spectroscopy. The crystal structure of 1 was determined by Rietveld analysis based on X-ray powder diffraction (XPD) data and those of [Al(hino)3].MeOH 4a and [Co(hino)2(EtOH)]2 6a, being obtained as yellow block crystals and red platelet crystals, respectively, by crystallization of 4 and 6, were determined by single-crystal X-ray analysis. The antimicrobial activities of 1, 4 and 6, evaluated with minimum inhibitory concentration (MIC; microg ml(-1)), were compared with those of other metal complexes (M=Na, Li, Cs, Ca, V, Zn) with the hino- ligand. The antimicrobial activities observed in the alkali-metal salts strongly suggested that they were attributed to the effect of the anionic hino- species. The antimicrobial activities of 1 were significantly enhanced, whereas those of other metal complexes were suppressed, compared with those of the neutral Hhino and anionic hino- molecules. The antimicrobial activities observed in 1 were comparable with those of other recently found silver(I)-oxygen bonding complexes, the ligands of which had no activity. Thus, it is proposed that the antimicrobial activities of the silver(I)-oxygen bonding complexes are due to a direct interaction or complexation of the silver(I) ion with biological ligands such as protein, enzyme and membrane, and the coordinating ligands of the silver(I) complexes play the role of a carrier of the silver(I) ion to the biological system.
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Affiliation(s)
- Kenji Nomiya
- Department of Materials Science, Faculty of Science, Kanagawa University, Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan.
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Ogura T, Mimura Y, Otsuka F, Kishida M, Yokota K, Suzuki J, Nagai A, Hirakawa S, Makino H, Tobe K. Hypothyroidism associated with anti-human chorionic gonadotropin antibodies secondarily produced by gonadotropin therapy in a case of idiopathic hypothalamic hypogonadism. J Endocrinol Invest 2003; 26:1128-35. [PMID: 15008254 DOI: 10.1007/bf03345263] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We report a 22-yr-old male patient with idiopathic hypothalamic hypogonadism who showed secondary resistance to gonadotropin (Gn) therapy over 3 yr after successful treatment with hCG combined with human menopausal Gn. The patient simultaneously developed subclinical hypothyroidism. Endocrine examination revealed low levels of testosterone (0.3 ng/ml), free T4 (0.91 ng/dl), and increased levels of TSH (31.1 microU/ml) in the serum. Serum autoantibodies to thyroid gland were all negative. Interestingly, thyroid function was improved after discontinuation of Gn therapy. In vitro assays by immunoprecipitation using 125I-hCG or 125I-TSH elucidated the presence of anti-hCG antibody in the serum 13 months after commencement of Gn therapy but anti-TSH antibody was not detected in the serum. Furthermore, the anti-hCG antibody specifically bound to hCG but not to other glycoproteins including TSH and FSH based on a competitive displacement assay. Bioassays using porcine thyroid cells revealed that the serum gamma-globulin fraction enables the suppression of cyclic AMP (cAMP) synthesis stimulated by TSH. Our findings suggest that anti-hCG and/or anti-idiotypic hCG antibodies induced by hCG therapy impaired TSH-dependent cAMP production through interfering with binding of TSH to its receptor, and this resulted in subclinical hypothyroidism in this patient.
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Affiliation(s)
- T Ogura
- Health and Medical Center, Okayama University Graduate School of Medicine and Dentistry, Okayama 700-8558, Japan
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Fossey SC, Mychaleckyj JC, Pendleton JK, Snyder JR, Bensen JT, Hirakawa S, Rich SS, Freedman BI, Bowden DW. A high-resolution 6.0-megabase transcript map of the type 2 diabetes susceptibility region on human chromosome 20. Genomics 2001; 76:45-57. [PMID: 11549316 DOI: 10.1006/geno.2001.6584] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent linkage studies and association analyses indicate the presence of at least one type 2 diabetes susceptibility gene in human chromosome region 20q12-q13.1. We have constructed a high-resolution 6.0-megabase (Mb) transcript map of this interval using two parallel, complementary strategies to construct the map. We assembled a series of bacterial artificial chromosome (BAC) contigs from 56 overlapping BAC clones, using STS/marker screening of 42 genes, 43 ESTs, 38 STSs, 22 polymorphic, and 3 BAC end sequence markers. We performed map assembly with GraphMap, a software program that uses a greedy path searching algorithm, supplemented with local heuristics. We anchored the resulting BAC contigs and oriented them within a yeast artificial chromosome (YAC) scaffold by observing the retention patterns of shared markers in a panel of 21 YAC clones. Concurrently, we assembled a sequence-based map from genomic sequence data released by the Human Genome Project, using a seed-and-walk approach. The map currently provides near-continuous coverage between SGC32867 and WI-17676 ( approximately 6.0 Mb). EST database searches and genomic sequence alignments of ESTs, mRNAs, and UniGene clusters enabled the annotation of the sequence interval with experimentally confirmed and putative transcripts. We have begun to systematically evaluate candidate genes and novel ESTs within the transcript map framework. So far, however, we have found no statistically significant evidence of functional allelic variants associated with type 2 diabetes. The combination of the BAC transcript map, YAC-to-BAC scaffold, and reference Human Genome Project sequence provides a powerful integrated resource for future genomic analysis of this region.
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Affiliation(s)
- S C Fossey
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina, 27157, USA
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Matsumoto C, Tadokoro K, Fujimura K, Hirakawa S, Mitsunaga S, Juji T. Analysis of HBV infection after blood transfusion in Japan through investigation of a comprehensive donor specimen repository. Transfusion 2001; 41:878-84. [PMID: 11452155 DOI: 10.1046/j.1537-2995.2001.41070878.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND To understand the risk of transfusion-transmitted viral infection, it is important to precisely assess cases of infection that follow transfusion. STUDY DESIGN AND METHODS HBV infections noted after transfusion in 1997, 1998, and 1999 were analyzed. Transfusion in all these cases was performed before NAT was adopted for donor screening. To detect viral infection, PCR and serologic tests for HBV were performed retrospectively on all blood samples from implicated donors that had been stored in a frozen state after each donation. The concentration of HBV genome was measured in HBV-positive blood samples. RESULTS One hundred three cases of HBV infection were analyzed; of these, only 16, including at least 10 infections due to window-period (HBsAg-positive by reverse particle hemagglutination assay) donations, were confirmed by further testing to be related to transfusion. The concentrations of HBV genome were very low in four blood samples (<50, 400, 500, and 800 genome equivalents/mL of plasma). CONCLUSIONS The remaining risk of transfusion transmission of HBV infection before the adoption of NAT was mainly due to window-period donations, including one that was made before the HBV genome was detectable by PCR. However, it was determined that transfusion was not responsible in many cases for HBV infection after transfusion.
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Affiliation(s)
- C Matsumoto
- Japanese Red Cross Central Blood Center, 4-1-31, Hiroo, Shibuya-ko, Tokyo 150-0012, Japan.
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Affiliation(s)
- M Saito
- Department of Urology, Yonago National Hospital and Tottori University Faculty of Medicine, Yonago, Japan
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Abstract
OBJECTIVE Women with hydrosalpinx have an unfavorable pregnancy rate. As one approach to elucidate the effect of hydrosalpinx on uterine tubal functioning, we examined the effect of hydrosalpinx fluid on early embryo development in mice. METHODS Hyperovulation was induced in ICR mice, and late 2-cell-stage embryos were harvested 42 hours after administration of human chorionic gonadotropin (hCG). Hydrosalpinx fluid was obtained from patients during surgery after informed consent was obtained. The embryos were cultured in 3 culture fluids: (1) mBWW medium containing 0.3% bovine serum albumin (positive-control medium) (BSA), (2) Ca2+, Mg2+-free phosphate buffered saline (negative-control medium) (PBS), and (3) 100% human hydrosalpinx fluid. The developmental status of the embryos 120 hours after hCG administration was examined. RESULTS Embryogenesis from a 2-cell-stage embryo to a blastocyst was observed in 98.3% (118/120) of the embryos cultured in the mBWW medium, in 0% (0/120) of the embryos cultured in PBS, and in 98.3% (118/120) of the embryos cultured in 100% human hydrosalpinx fluid. CONCLUSION In the micro-environment of human hydrosalpinx fluid, late 2-cell embryos of ICR mice developed normally to blastocysts. The present results also suggest that non-species-specific embryogenetic factors might be present in human hydrosalpinx fluid.
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Affiliation(s)
- S Saito
- First Department of Obstetrics and Gynecology, Toho University School of Medicine, Tokyo, Japan
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Hirakawa S, Oohashi T, Su WD, Yoshioka H, Murakami T, Arata J, Ninomiya Y. The brain link protein-1 (BRAL1): cDNA cloning, genomic structure, and characterization as a novel link protein expressed in adult brain. Biochem Biophys Res Commun 2000; 276:982-9. [PMID: 11027579 DOI: 10.1006/bbrc.2000.3583] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report here molecular cloning and expression analysis of the gene for a novel human brain link protein-1 (BRAL1) which is predominantly expressed in brain. The predicted open reading frame of human brain link protein-1 encoded a polypeptide of 340 amino acids containing three protein modules, the immunoglobulin-like fold and proteoglycan tandem repeat 1 and 2 domains, with an estimated mass of 38 kDa. The brain link protein-1 mRNA was exclusively present in brain. When analyzed during mouse development, it was detected solely in the adult brain. Concomitant expression pattern of mRNAs for brain link protein-1 and various lectican proteoglycans in brain suggests a possibility that brain link protein-1 functions to stabilize the binding between hyaluronan and brevican. The human BRAL1 gene contained 7 exons and spanned approximately 6 kb. The entire immunoglobulin-like fold was encoded by a single exon and the proteoglycan tandem repeat 1 and 2 domains were encoded by a single and two exons, respectively. The deduced amino acid sequence of human brain link protein-1 exhibited 45% identity with human cartilage link protein-1 (CRTL1), previously reported as link protein to stabilize aggregates of aggrecan and hyaluronan in cartilage. These results suggest that brain link protein-1 may have distinct function from cartilage link protein-1 and play specific roles, especially in the adult brain.
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Affiliation(s)
- S Hirakawa
- Department of Molecular Biology and Biochemistry, Okayama University Medical School, Okayama, 700-8558, Japan
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Yanagi K, Muraoka K, Yamamoto Y, Sanematsu H, Hirakawa S, Miyagawa I. [Extragonadal germ cell tumor coexisted with renal cell carcinoma--a case report]. Nihon Hinyokika Gakkai Zasshi 2000; 91:637-40. [PMID: 11068428 DOI: 10.5980/jpnjurol1989.91.637] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A patient was 31-year-old man with the chief complaint of 38 degrees C fever. He was pointed out left renal tumor by abdominal ultrasonography and computerized tomography (CT). CT revealed left infraclavicular, mediastinal and retroperitoneal lymph nodes swelling and left renal tumor. Serum alpha-fetoprotein (AFP) and beta-human chorionic gonadotropin (HCG-beta) level were elevated. The diagnosis of extragonadal germ cell tumor and left renal cell carcinoma was confirmed pathologically by infraclavicular lymph node and renal biopsy. He was treated with 4 courses of BEP regimen and interferon-alpha, cimetidine therapy for 2 weeks preoperatively. After serum tumor markers were normal level, he underwent left radical nephrectomy and left infraclavicular, mediastinal and retroperitoneal lymph node dissection. The histology of all lymph nodes was necrotic tissue, but operation was incomplete. Therefore VIP therapy was performed postoperatively. This is the first case of extragonadal germ cell tumor coexisted with renal cell carcinoma in the world.
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Affiliation(s)
- K Yanagi
- Department of Urology, Tottori University School of Medicine
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22
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Murozuka T, Aoki M, Kimura N, Sotoyama K, Abe I, Izumi H, Emura H, Takeda Y, Nanakawa H, Katsubayashi Y, Takeuchi T, Ito H, Hirakawa S, Mitsunaga S, Tadokoro K, Kanemitsu K, Miyamoto M, Yamanaka R, Nishioka K. Removal and inactivation of hepatitis B virus from contaminated pooled plasma in a large-scale manufacturing process for factor VIII and human serum albumin. Vox Sang 2000; 76:181-6. [PMID: 10341335 DOI: 10.1159/000031046] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND OBJECTIVES The Japanese Red Cross Society recalled one lot of monoclonal-antibody-purified factor VIII (F VIII) and two lots of human serum albumin (HSA) 5 months after preparation of the final products, because of a procedural error that led to contamination by a unit of plasma positive for hepatitis B surface antigen (HBsAg). We evaluated the effectiveness of virus inactivation/removal in a large-scale process for manufacturing F VIII and HSA. MATERIALS AND METHODS HBV DNA in the retained samples in process was measured by the polymerase chain reaction (PCR). The kinetics of virus inactivation by solvent-detergent (S/D) treatment was examined using model viruses. We also did a look-back survey of the patients who received corresponding products. RESULTS Contaminated hepatitis B virus (HBV) DNA became undetectable beyond fraction S IV-I in the albumin process and immunoaffinity chromatography in the F VIII process, respectively. The model viruses were inactivated within 5 s by S/D treatment. There is no evidence that patients were infected by HBV after transfusion of these products. CONCLUSION We conclude that virus inactivation/removal was effectively achieved in a large-scale manufacturing process for F VIII and HSA.
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Affiliation(s)
- T Murozuka
- The Japanese Red Cross Plasma Fractionation Center, Chitose, Japan.
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23
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Ohyama K, Uchide N, Suzuki R, Iwamoto N, Bessho T, Watanabe H, Hirakawa S, Yamakawa T. Biosynthesis of Vicia graminea lectin- and Vicia unijuga lectin-binding glycoproteins in human tumor and nontumor cells and an estimation of its epitope structure. Cancer Detect Prev 2000; 24:61-71. [PMID: 10757124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
We investigated biosynthesis of Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding (Vgu) glycoproteins, which are human malignant tumor-associated antigens, in cultured human tumor and non-tumor cells by pulse-labeling experiments with [35S]-methionine, followed by immunoprecipitation using immobilized VUA, SDS-PAGE and autofluorography. It was shown that Vgu glycoproteins synthesized by tumor cells were 15-30 times greater than those of non-tumor cells. It was also shown that about 40-70% of Vgu glycoproteins synthesized by non-tumor cells were secreted from the cells while more than 80% of the antigen synthesized by tumor cells was not secreted, and that Vgu glycoproteins consisted of multiple molecular species with the same epitope. To estimate the epitope structure of Vgu glycoproteins, in preliminary experiments we prepared sialoglycoproteins and/or sialoglycopeptides from purified human glycophorin A. Human glycophorins A(M) and A(N) (GPs-A(M) and A(N)) were treated with Clostridium perfringens neuraminidase to remove all sialic acid residues linked to carbohydrate chains, with Newcastle disease virus (NDV) to remove alpha2-3 linked sialic acid residues, and by Edman's degradation to eliminate N-terminal amino acid of GP-As. Partial or complete desialylation reactions resulted in disappearance of the reactivity of GP-A(M) and GP-A(N) with corresponding antisera and in appearance of reactivities with VUA and VGA. Elimination of N-terminal amino acid of GP-As also resulted in appearance of reactivities with VUA. These results show that sialoglycoproteins with similar serological properties of Vgu glycoprotein could be prepared from GP-As, and suggest that the epitope structure of Vgu glycoprotein may be related to the MN blood type-epitope structure and its sialic acid residues at N-terminal moiety of GP-As.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Japan.
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24
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Yanagi K, Saito M, Watanabe T, Hirakawa S, Miyagawa I. [Management of unilateral renal cystine calculi via percutaneous nephrolithotripsy in a child with a contralateral non-functional kidney--a case report]. Nihon Hinyokika Gakkai Zasshi 2000; 91:493-6. [PMID: 10826250 DOI: 10.5980/jpnjurol1989.91.493] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A 2-year old boy visited our clinic with a chief complaint of high fever. A past history of acute renal failure due to cystine stones and cystinuria was expressed. Abdominal rentogenograms and CT demonstrated a right ureteral stone and a left renal stone. Furthermore renogram evaluation indicated non-function of the right kidney and dysfunction in the left kidney. Since right ureteral stone moved into bladder seven days post-admission, right ureteroscopy, left PNL, and cystolithotripsy were performed. Considering that right ureteral stenosis was determined by ureteroscopy, balloon dilation against the stenotic ureteral wall was performed. Left PNL and cystolithotripsy were successfully performed. No intraoperative complications occurred and no symptoms of signs of recurrence of the underlying metabolic disease were evident four months postoperatively.
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Affiliation(s)
- K Yanagi
- Department of Urology, Tottori University Faculty of Medicine, Yonago, Japan
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25
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Shibui Y, Sasabe Y, Nishimura T, Ito K, Shiokawa M, Nakano Y, Ikenaga K, Masaki K, Abe Y, Kubo H, Hirakawa S, Miura K. Chromosome analysis of infertile couples and amniocentesis of pregnancies in art program. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)84603-2] [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: 10/26/2022]
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26
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Sasabe Y, Nishimura T, Shibui Y, Ito K, Abe Y, Kubo H, Hirakawa S. Chromosome analysis of embryos resulting from assisted reproductive technology. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)84602-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Hirakawa S. Molecular cloning of a novel link protein gene specifically expressed in central nervous system. Neurosci Res 2000. [DOI: 10.1016/s0168-0102(00)81491-1] [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: 10/27/2022]
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28
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Ishikawa H, Matsuda Y, Katayama M, Hara I, Sato H, Kaneko S, Hirakawa S, Matsushima M. Amidolytic activities and prostate-specific antigen in human seminal plasma. Arch Androl 1999; 43:141-51. [PMID: 10543577 DOI: 10.1080/014850199262652] [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: 10/16/2022]
Abstract
The amounts of protein measured by absorbance at 280 nm, succinyl-L-alanyl-L-alanyl-L-prolyl-L-leucine-p-nitroanilide (Suc-Ala-Ala-Pro-Leu-pNA), D-valyl-cyclohexyl-alanyl-L-arginine-p-nitroanilide (Val-CHA-Arg-pNA), and glutamyl-L-phenylalanine-p-nitroanilide (Glu-Phe-pNA) amidolytic activities, and prostate-specific antigen (PSA) were measured in human seminal plasma (HSP) samples separated from the semen of 46 cases, including 13 cases of azoospermia and 33 cases of normozoospermia showing either good or poor quality of liquefaction. There was a highly significant correlation between the concentrations of all amidolytic enzyme activities studied and the concentration of PSA in HSP samples (p<.01). The HSP sample volume showed a relatively good negative coefficient of correlation to all items measured (p<.01) with the exception of protein concentration. The Suc-Ala-Ala-Pro-Leu-pNA, Val-CHA-Arg-pNA, and Glu-Phe-pNA amidolytic activities in azoospermia HSP samples were 2.33. 1.68, and 1.43 times higher, respectively, than those of normozoospermia samples showing good quality liquefaction. After the addition of morphologically purified human sperm to HSP sample of azoospermia cases, the Suc-Ala-Ala-Pro-Leu-pNA amidolytic activity in the HSP sample of azoospermia was not decreased for up to 18 h incubation, while the number of motile human sperm gradually declined, and no motile human sperm were detected after 18 h of incubation. The high Suc-Ala-AlaPro-Leu-pNA amidolytic activity in HSP samples of azoospermia cases did not result from a lack of motility.
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Affiliation(s)
- H Ishikawa
- Department of Urology, Ichikawa General Hospital, Tokyo Dental College, Chiba, Japan
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Abstract
We describe a 29-year-old woman with rheumatoid arthritis who suffered an acute myocardial infarction 70 days after an initial presentation with toxic epidermal necrolysis (TEN). The trigger for the TEN was probably an over-the-counter anti-influenza treatment containing tipepidine hibenzate. Although the patient had familial hypercholesterolemia, we believe that thrombocytosis, induced by the inflammatory response and metabolic stress resulting from the TEN, may also have played a significant role in the pathogenesis of the myocardial infarction. Although TEN manifests itself principally as a skin disease, the potential for systemic morbidity, including cardiovascular abnormalities, should also be remembered.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School, Japan.
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30
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Fukushima K, Kasai N, Ueki Y, Nishizaki K, Sugata K, Hirakawa S, Masuda A, Gunduz M, Ninomiya Y, Masuda Y, Sato M, McGuirt WT, Coucke P, Van Camp G, Smith RJ. A gene for fluctuating, progressive autosomal dominant nonsyndromic hearing loss, DFNA16, maps to chromosome 2q23-24.3. Am J Hum Genet 1999; 65:141-50. [PMID: 10364526 PMCID: PMC1378084 DOI: 10.1086/302461] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The sixteenth gene to cause autosomal dominant nonsyndromic hearing loss (ADNSHL), DFNA16, maps to chromosome 2q23-24.3 and is tightly linked to markers in the D2S2380-D2S335 interval. DFNA16 is unique in that it results in the only form of ADNSHL in which the phenotype includes rapidly progressing and fluctuating hearing loss that appears to respond to steroid therapy. This observation suggests that it may be possible to stabilize hearing through medical intervention, once the biophysiology of deafness due to DFNA16 is clarified. Especially intriguing is the localization of several voltage-gated sodium-channel genes to the DFNA16 interval. These cationic channels are excellent positional and functional DFNA16 candidate genes.
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Affiliation(s)
- K Fukushima
- Departments of Otolaryngology and Biochemistry, Okayama University Medical School, Okayama, Japan
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Muraoka K, Takahashi C, Yamamoto Y, Watanabe T, Hirakawa S, Miyagawa I. [Examination for indication of systematic biopsy for diagnosis of prostate cancer]. Nihon Hinyokika Gakkai Zasshi 1999; 90:657-62. [PMID: 10481471 DOI: 10.5980/jpnjurol1989.90.657] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Systematic biopsy has been commonly used for detection of prostate cancer. Nevertheless, as this examination occasionally gives patients severe complications it is necessary to give careful consideration for application of this examination. Thus, we analyzed retrospectively 145 cases who underwent transrectal ultrasonography (TRUS) guided systematic biopsy to evaluate the application of systematic biopsy, correlating with the findings of digital rectal examination (DRE), prostate specific antigen (PSA), the findings of transrectal ultrasonography (TRUS) and the results of biopsies. METHODS Between May, 1995 and May, 1997, 143 patients who were suspected to have prostate cancer with either of PSA and DRE, and 2 patients who received visual laser ablation of prostate (VLAP), underwent TRUS guided systematic biopsy of prostate. We evaluated diagnostic efficacy of PSA, DRE, TRUS, prostate-volume-specific PSA, and PSA density (PSAD). RESULTS Sensitivity, specificity and positive predictive value (P.P.V.) are 78.4%, 62.8% and 53.5% for DRE, 100.0%, 4.4% and 41.8% for PSA, 88.2%, 60.0% and 52.9% for TRUS, 87.8%, 72.1% and 64.2% for prostate-volume-specific PSA, 100.0%, 30.6% and 45.4% for PSAD, respectively. Ten of 69 patients (14.5%) whose PSA levels were 4.0 to 10.0 ng/ml were diagnosed as cancer, and positive for both or either of DRE and TRUS. Twenty-seven who were negative for both of DRE and TRUS were not diagnosed as prostate cancer. Using the combination of prostate-volume-specific PSA, DRE and TRUS, we could eliminate 29 non-cancer men (21.5%) whose PSA level was greater than 4.0 ng/ml from systematic biopsy. CONCLUSION On the diagnosis of prostate cancer, the combination of prostate-volume-specific PSA, DRE and TRUS is very useful to exclude unnecessary systematic biopsy, if an urologist could be used to and trained for DRE and TRUS.
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Affiliation(s)
- K Muraoka
- Tottori University Faculty of Medicine
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32
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Tsushima T, Kumon H, Ohmori H, Furukawa Y, Tanaka H, Nakahara M, Usui T, Yamamoto M, Naito K, Hirakawa S, Miyagawa I, Fujita K, Takenaka I, Kanayama H, Kagawa S, Yokoyama M, Takeuchi M, Yamashita M, Shuin T, Sumiyoshi Y, Takigawa H. [Clinical statistics of stage I testicular tumor]. Nihon Hinyokika Gakkai Zasshi 1999; 90:624-32. [PMID: 10422438 DOI: 10.5980/jpnjurol1989.90.624] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
PURPOSE A survey of stage I testicular tumors in the Chugoku-Shikoku district was taken in order to explore the clinical characteristics. PATIENTS AND METHODS Three hundred and forty eight cases of stage I testicular tumor treated at 46 facilities in the Chugoku-Shikoku district between 1984 and 1992 were collected. Subjects' background factors, treatment methods and prognosis were studied. RESULTS Tissue types were 249 (71.6%) seminoma and 99 (28.4%) non-seminoma. Adjuvant therapy for seminoma cases included 138 post-operative radiotherapy (4 recurrences, 3 cancer deaths), 57 chemotherapy (no recurrences, 2 contralateral testis tumor cases) and 48 were under surveillance (no recurrence). Adjuvant therapy for non-seminoma cases included 47 chemotherapy (1 recurrence) and retroperitoneal lymph node dissection was performed on 6 cases. Forty cases were under surveillance (1 recurrence). Of 8 (2.3%) cases with recurrence, 6 showed onset within two years and 2 after two years. Four of the 8 cases with recurrence were seminoma (1.1% of seminoma cases) and the other 4 were non-seminoma (4.0% of non-seminoma cases). All 3 (0.9% of all cases) of the cancer death cases were seminoma that received post-operative radiotherapy, while there were no cancer deaths in non-seminoma cases. CONCLUSION Prognosis of stage I testicular tumor is good. Although the recurrence rate was higher in non-seminoma cases, cancer deaths were only observed in seminoma cases.
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Affiliation(s)
- T Tsushima
- Department of Urology, Okayama University Medical School
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Abstract
Defensins are widely distributed and broad-spectrum antimicrobial peptides with activities against bacteria, fungi, and enveloped viruses. Defensins have been isolated from granules of neutrophils from humans, rabbits, rats, and guinea pigs. They have also been found in lung macrophages as well as in Paneth cells of the human, rabbit, and mouse small intestine. The human beta-defensin-2 was recently isolated from human skin. In this study, we detected the expression of mRNA for the defensin cryptdin in BALB/c mouse skin by means of reverse transcriptase PCR amplification. Expression was also detected in dispase-separated epidermis and cultured keratinocytes, but expression was not detected in fibroblasts. The expression of cryptdin mRNA was found to begin on embryonic day 17.5. As determined with specific primers, the cDNA sequence cloned from the skin was found to be identical to that previously reported for cryptdin-5. cDNA derived from cultured keratinocytes demonstrated the sequences of the cryptdin-6 and cryptdin-1 isoforms. In situ hybridization analysis showed that the mRNA of cryptdin was expressed in the suprabasal keratinocytes of the skin in embryonic and neonatal days and then shifted to the hair bulbs in the skin of adult mice.
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Affiliation(s)
- Y Shirafuji
- Department of Dermatology, Okayama University Medical School, Shikata-cho 2-5-1, Okayama 700-8558, Japan
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Murozuka T, Aoki M, Kimura N, Sotoyama K, Abe I, Izumi H, Emura H, Takeda Y, Nanakawa H, Katsubayashi Y, Takeuchi T, Ito H, Hirakawa S, Mitsunaga S, Tadokoro K, Kanemitsu K, Miyamoto M, Yamanaka R, Nishioka K. Removal and Inactivation of Hepatitis B Virus from Contaminated Pooled Plasma in a Large-Scale Manufacturing Process for Factor VIII and Human Serum Albumin. Vox Sang 1999. [DOI: 10.1046/j.1423-0410.1999.7630181.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hirakawa S, Kuyama M, Takahashi S, Yamasaki O, Kanzaki H, Teshima T, Harada M, Ma Y, Kawabata T, Yoshino T, Arata J. Nasal and nasal-type natural killer/T-cell lymphoma. J Am Acad Dermatol 1999; 40:268-72. [PMID: 10025761 DOI: 10.1016/s0190-9622(99)70204-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Nasal and nasal-type natural killer (NK)/T-cell lymphomas follow an aggressive course and have a poor prognosis. Recent pathologic studies suggest that the disease is a malignant proliferation of NK cells, which often express CD56. An association with the Epstein-Barr virus has also been reported. Skin involvement occurred in each of the 3 patients studied. Radiation therapy provided some benefit to the patients in the early stages. Conventional chemotherapies were not effective. To overcome this multiple-drug resistance of the tumor cells, cyclosporine and high-dose chemotherapy was combined with peripheral-blood stem-cell transplantation. The average life span from the onset of the disease for our patients was 9.6 months. Further improvement in the management of nasal and nasal-type NK/T-cell lymphomas is necessary.
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Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School, Japan
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Sasabe Y, Katayama KP, Nishimura T, Takahashi A, Asakura H, Winchester-Peden K, Wise L, Abe Y, Kubo H, Hirakawa S. Preimplantation diagnosis by fluorescence in situ hybridization using 13-, 16-, 18-, 21-, 22-, X-, and Y-chromosome probes. J Assist Reprod Genet 1999; 16:92-6. [PMID: 10079412 PMCID: PMC3455735 DOI: 10.1023/a:1022520907332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Our purpose was to select the proper chromosomes for preimplantation diagnosis based on aneuploidy distribution in abortuses and to carry out a feasibility study of preimplantation diagnosis for embryos using multiple-probe fluorescence in situ hybridization (FISH) on the selected chromosomes of biopsied blastomeres. METHODS After determining the frequency distribution of aneuploidy found in abortuses, seven chromosomes were selected for FISH probes. Blastomeres were obtained from 33 abnormal or excess embryos. The chromosome complements of both the biopsied blastomeres and the remaining sibling blastomeres in each embryo were determined by FISH and compared to evaluate their preimplantation diagnostic potential. RESULTS Chromosomes (16, 22, X, Y) and (13, 18, 21) were selected on the basis of the high aneuploid prevalence in abortuses for the former group and the presence of trisomy in the newborn for the latter. Thirty-six (72%) of 50 blastomeres gave signals to permit a diagnosis. Diagnoses made from biopsied blastomeres were consistent with the diagnoses made from the remaining sibling blastomeres in 18 embryos. In only 2 of 20 cases did the biopsied blastomere diagnosis and the embryo diagnosis not match. CONCLUSIONS If FISH of biopsied blastomere was successful, a preimplantation diagnosis could be made with 10% error. When a combination of chromosome-13, -16, -18, -21, -22, -X, and -Y probes was used, up to 65% of the embryos destined to be aborted could be detected.
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Affiliation(s)
- Y Sasabe
- First Department of Obstetrics and Gynecology, School of Medicine, Toho University, Tokyo, Japan
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Kuroki H, Tajima N, Hirakawa S, Kubo S, Tabe R, Kakitsubata Y. Comparative study of MR myelography and conventional myelography in the diagnosis of lumbar spinal diseases. J Spinal Disord 1998; 11:487-92. [PMID: 9884292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The purpose of this study was to investigate the usefulness of magnetic resonance (MR) myelography by comparing it with conventional myelography. MR myelography was performed on 40 patients (24 men and 16 women; mean age, 44 years) with lumbar spinal diseases. MR myelography was imaged three-dimensionally by fast spin-echo technique with fat suppression and maximum intensity projection. We assessed both the ability to provide the images of nerve root sheaths and the similarity of the findings to conventional myelography. Satisfactory images of nerve root sheaths in the lumbar region were provided almost equally by MR and conventional myelography. The images obtained by MR myelography were similar in quality to those obtained by conventional myelography. When combined with some other conventional MR imaging techniques, this diagnostic technique of imaging lumbar spinal diseases is further enhanced.
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Affiliation(s)
- H Kuroki
- Department of Orthopaedic Surgery, Miyazaki Medical College, Kiyotake, Japan
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Ohyama K, Oka K, Emura A, Tamura H, Suga T, Bessho T, Hirakawa S, Yamakawa T. Suppression of apoptotic cell death progressed in vitro with incubation of the chorion laeve tissues of human fetal membrane by glucocorticoid. Biol Pharm Bull 1998; 21:1024-9. [PMID: 9821804 DOI: 10.1248/bpb.21.1024] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the trophoblast layer of the chorion laeve of human fetal membranes obtained by cesarean section at the month of normal parturition, cells with condensed nuclei could be observed by histochemical examination. Incubating fetal membranes at 37 degrees C in vitro in cultivation medium, the frequency of cells with condensed nuclei increased in the chorion laeve, associating with an increase in DNA fragmentation and the population of in situ TUNEL (terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-X nick end labeling) staining-positive cells. The progressed apoptotic cell death in the chorion laeve in vitro was suppressed by incubation of the tissue in the presence of glucocorticoids, cortisone or hydrocortisone, which was also demonstrated by DNA fragmentation analysis and in situ TUNEL staining. These results reveal that a substantial proportion of trophoblast cells in the chorion laeve of human fetal membranes are induced to undergo apoptosis at the end of pregnancy, and that the apoptosis progresses rapidly in vitro as the incubation period increases. It is suggested that certain hormones such as glucocorticoid, may be related to the regulation of the apoptosis in human fetal membranes.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Hachioji, Japan
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Ohyama K, Oka K, Tamura H, Suga T, Bessho T, Hirakawa S, Yamakawa T. Progressive in vitro apoptosis in the chorion laeve of human fetal membranes at late stage of pregnancy is suppressed by glucocorticoides. Placenta 1998. [DOI: 10.1016/s0143-4004(98)91178-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Hirakawa S, Yoshioka H. [Epidermolysis bullosa hereditaria]. Ryoikibetsu Shokogun Shirizu 1998:526-30. [PMID: 9645126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- S Hirakawa
- Department of Dermatology, Okayama University Medical School
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Fujimoto W, Nakanishi G, Hirakawa S, Nakanishi T, Shimo T, Takigawa M, Arata J. Pachyonychia congenita type 2: keratin 17 mutation in a Japanese case. J Am Acad Dermatol 1998; 38:1007-9. [PMID: 9632020 DOI: 10.1016/s0190-9622(98)70170-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- W Fujimoto
- Department of Dermatology, Okayama University Medical School, Shikata, Japan
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42
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Ohyama K, Iwamoto N, Bessho T, Watanabe H, Hirakawa S, Yamakawa T. Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoproteins in human fetal membranes and some of their biochemical properties. Int J Biochem Cell Biol 1998; 30:609-22. [PMID: 9693961 DOI: 10.1016/s1357-2725(98)00010-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have previously reported that Vicia graminea lectin (VGA)- and Vicia unijuga lectin (VUA)-binding glycoproteins (Vgu glycoproteins), malignant tumor-associated antigens, exist in human meconium and amniotic fluid. To examine the origin of Vgu glycoprotein, their presence, some of their chemical and serological properties and their biosynthesis in the human fetal membrane, amnion and chorion laeve and accompanying membrane cells were examined. Perchloric acid-soluble fractions were prepared from human amnion and chorion laeve, after which VUA-binding components (Vgu glycoproteins) were separated by HPLC and affinity chromatography using immobilized VUA. Biosynthesis of the antigens in primary cultured cells prepared from the amnion and chorion laeve were examined by pulse-labeling and immunoprecipitation using immobilized VUA and compared with those in cultured human cancer cells. The results indicated that the serological properties of VUA-binding components in fetal membranes were similar to those of meconium and amniotic fluid, that many molecular species of VUA-binding components were synthesized in amnion and chorion laeve cells and that about 40-50% of antigens synthesized are secreted from cells while antigens synthesized in cultured cancer cells human were hardly secreted with more than 95% of the antigens remaining in the cells. From these results, we concluded that a large part of Vgu glycoproteins found in amniotic fluid is synthesized in cells of the amnion and chorion laeve and secreted into the fluid, and that Vgu glycoproteins synthesized in cancer cells were not secreted, rather they were retained in the cells.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan.
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Yasuda N, Gotoh K, Yagi Y, Nagashima K, Sawa T, Nomura M, Hirakawa S, Fujiwara H. Mechanism of posturally induced crackles as predictor of latent congestive heart failure. Respiration 1997; 64:336-41. [PMID: 9311049 DOI: 10.1159/000196701] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We investigated the role of changes in pulmonary function in posturally induced crackles (PIC) in 76 patients with various heart diseases. Regional ventilation was evaluated by spirometric gated ventilation scanning using 133Xe in 23 of these patients and its relationship to PIC was analyzed. A change from the sitting to the supine position was associated with a significant decrease in the percent functional residual capacity (FRC, p < 0.01) and significant increases in closing volume (CV), CV/vital capacity (VC) and closing capacity (CC)/FRC (p < 0.01) in the PIC-positive subjects. CV, CV/VC and CC/FRC did not differ significantly between PIC-positive (n = 37) and PIC-negative (n = 39) subjects in the sitting position, but in the supine position, these values were significantly higher in the PIC-positive group than in the PIC-negative group (CV: p < 0.05, CV/VC and CC/FRC: p < 0.01). These results suggest that airway closure was markedly increased in PIC-positive subjects in the supine position compared with PIC-negative subjects. Regional ventilation (V) was assessed in the sitting and the supine position from right lateral images divided into 9 segments from the base to the apex of the lung using spirometric gated ventilation scanning. There was no significant difference in regional ventilation in the sitting position between PIC-negative (n = 11) and PIC-positive (n = 12) subjects; in the supine position, regional ventilation decreased significantly at the base in the PIC-positive group. Findings suggest that PIC at the base of the lungs may be related to airway closure at the base of the lungs in the supine position in PIC-positive subjects.
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Affiliation(s)
- N Yasuda
- Second Department of Internal Medicine, Gifu University School of Medicine, Japan
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44
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Tomita M, Wada H, Tanaka R, Miwa Y, Kagawa K, Noda T, Nishigaki K, Hirakawa S, Fujiwara H. Effects of Albunex infusion on left ventricular inflow velocity in dogs. J Cardiol 1997; 29:283-91. [PMID: 9174884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study examined the effects of Albunex (sonicated 5% human serum albumin) infusion on left ventricular inflow velocity by Doppler echocardiography. Left ventricular pressure and left ventricular inflow velocity were recorded simultaneously under eight different conditions in dogs: 1) baseline 1 (control), 2) Albunex 0.2 ml/kg, 3) baseline 2, 4) Albunex 0.5 ml/kg, infusion of dextran 100 ml, 5) baseline 3, 6) Albunex 0.2 ml/kg, 7) baseline 4, and 8) Albunex 0.5 ml/kg. In the normal state (no dextran), Albunex (0.2 ml/kg) caused no hemodynamic changes or inflow velocity changes. In contrast, infusion of Albunex (0.5 ml/kg) caused time velocity integrals of early filling to increase from the baseline (5.51 +/- 1.13 vs 7.19 +/- 1.14 cm, p < 0.05). After dextran infusion (100 ml), Albunex (0.2 ml/kg) caused peak early filling velocity to increase (62.4 +/- 6.9 vs 67.3 +/- 9.4 cm/sec, p < 0.05), and infusion of Albunex (0.5 ml/kg) also caused peak early filling velocity to increase from baseline (64.6 +/- 8.5 vs 73.7 +/- 14.5 cm/sec, p < 0.05). Infusion of Albunex (0.5 ml/kg) after dextran infusion caused increases in left ventricular pressure at the mitral valve opening (12.7 +/- 3.1 vs 15.2 +/- 3.3 mmHg, p < 0.05) and in left atrial driving force (13.5 +/- 3.6 vs 16.7 +/- 5.9 mmHg, p < 0.05). Clinicians should be cautious about using Albunex at doses of greater than 0.2 ml/kg when evaluating the pressure gradient of the left ventricle in patients with elevated left ventricular diastolic pressure. In patients with normal hemodynamics, Albunex infusion at doses of less than 0.2 ml/kg apparently did not affect the velocity measurement.
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Affiliation(s)
- M Tomita
- Second Department of Internal Medicine, Gifu University School of Medicine
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45
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Ohyama K, Suzuki R, Watanabe H, Hirakawa S, Yamakawa T. Presence of Vicia graminea lectin- and Vicia unijuga lectin-binding (Vgu) glycoprotein in human amniotic fluid and some of its chemical and serological properties. Int J Biochem Cell Biol 1997; 29:455-64. [PMID: 9202424 DOI: 10.1016/s1357-2725(96)00095-7] [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: 02/04/2023]
Abstract
Vicia graminea- and Vicia unijuga-binding glycoprotein (Vgu glycoprotein) has been reported as a malignant tumor-associated antigen, which is found in various kinds of malignant tumor-tissues and ascitic and cyst fluids of malignant tumor patients, but not found in 20 kinds of normal human tissues. The glycoprotein reacts with anti-N lectins of Vicia-graminea (VGA) and Vicia unijuga (VUA), but does not react with anti-blood group M and N sera. The existence of Vgu glycoprotein in human amniotic fluid is reported here. A perchloric acid-soluble glycoprotein fraction (PASF) was prepared from human amniotic fluid (AF-PASF). Sialoglycoprotein was then separated from AF-PASF by consecutive gel filtration on Sephacryl S-300, HPLC on Asahipak GS-710 and affinity chromatography in VUA-conjugated formyl-cellulofine columns. The sialoglycoprotein with 9.6% (w/w) carbohydrate content showed a molecular mass of 2940 kDa estimated by HPLC gel filtration. The sialoglycoprotein showed reactivity with VGA and VUA, but did not react with anti-M and -N sera. In addition, the sialoglycoprotein reacted with lectins of Ulex europeus, Arachis hypogaea, Maclura pomifera, Canavalia ensiformis, Ricinus communis, Phaseolus vulgaris, Sambucus nigra and Sophora japonica. These results show that Vgu glycoprotein exists in human amniotic fluid, and that Vgu glycoprotein obtained from human amniotic fluid has a similar serological property to Vgu glycoproteins found in malignant tumor-tissues, but its chemical property is significantly different from that of malignant-tumor associated Vgu glycoproteins.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan
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Ohyama K, Yanagi K, Hayashi S, Matsuda T, Suzuki R, Ohkuma S, Watanabe H, Hirakawa S, Yamakawa T. Investigation of Vicia graminea lectin- and Vicia unijuga lectin-binding glycoproteins as novel oncofetal antigens in cyst and ascitic fluids of human ovarian tumors in benign, dysplastic, and malignant stages. Cancer Detect Prev 1997; 21:304-11. [PMID: 9232320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Perchloric acid-soluble fractions (PASFs) were obtained from cyst fluids of human benign ovarian mucinous cystadenoma, benign dermoid cyst, "borderline" mucinous cystadenoma, and malignant ovarian clear cell carcinoma, and from fluids of malignant embryonal carcinoma and malignant serous cystadenocarcinoma. PASFs from benign lesions did not react with Arachis hypogaea lectin (PNA), Vicia graminea lectin (VGA), or Vicia unijuga lectin (VUA). PASFs from "borderline" lesions reacted with PNA but did not react with VGA and VUA. PASFs from malignant tumors reacted with PNA, VGA, and VUA. These PASFs did not react positively against anti-M or -N sera. These results show that VGA- and VUA-binding glycoprotein (Vgu glycoprotein) exist in PASFs from malignant ovarian tumors, and that PNA-binding glycoprotein was present in PASFs from malignant and "borderline" ovarian tumors. Furthermore, we found the existence of Vgu glycoprotein in PASFs from various human cancer cell lines; however, the antigens were not found in PASFs from benign human cell lines.
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Affiliation(s)
- K Ohyama
- Department of Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan
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47
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Nakayama M, Takata M, Kato M, Shikoshi K, Umeda M, Tanaka M, Hirakawa S. [8;21 translocation acute myelocytic leukemia developing in the second trimester of pregnancy with successful delivery]. Rinsho Ketsueki 1996; 37:1265-70. [PMID: 8960659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A 28 year-old woman in the 26th week of pregnancy was admitted to our hospital on February 6, 1993, because of anemia and thrombocytopenia. On admission, her hemoglobin was 8.2 g/dl, platelet count 6.3 x 10(4)/microliter, and WBC 6,300/microliter with 43% blasts. The bone marrow examination showed hyperplastic bone marrow with 38.8% blasts. She was diagnosed as having 8;21 translocation acute myelocytic leukemia (M2). In the 30th week of pregnancy, she gave birth to a 1449 g male infant by induction delivery. After DCMP therapy, complete remission was obtained. She has been in complete remission for 32 months and her child is growing healthy after overcoming an underweight condition due to premature birth, respiratory distress syndrome, circulation insufficiency and hyperbilirubinemia. This case suggests that in the event of second trimester pregnant patients with acute leukemia, we should wait for the proper time at which successful delivery can be expected, and then intensified remission induction chemotherapy should be carried out after the delivery.
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MESH Headings
- Adult
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Chromosomes, Human, Pair 21
- Chromosomes, Human, Pair 8
- Cytarabine/administration & dosage
- Daunorubicin/administration & dosage
- Female
- Humans
- Infant, Newborn
- Labor, Obstetric
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/genetics
- Male
- Mercaptopurine/administration & dosage
- Prednisolone/administration & dosage
- Pregnancy
- Pregnancy Complications, Neoplastic
- Remission Induction
- Translocation, Genetic
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Affiliation(s)
- M Nakayama
- First Department of Internal Medicine, Toho University School of Medicine
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48
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Noda T, Arakawa M, Miwa H, Ito Y, Kagawa K, Nishigaki K, Hirakawa S, Fujiwara H. Effects of heart rate on flow velocity of the left atrial appendage in patients with nonvalvular atrial fibrillation. Clin Cardiol 1996; 19:295-300. [PMID: 8706369 DOI: 10.1002/clc.4960190404] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND AND HYPOTHESIS Flow velocity of the left atrial appendage (LAA) is thought to be important in thrombus formation in association with blood stasis and the development of spontaneous echo contrast. The effects of heart rate on peak flow velocity of LAA have not been studied in patients with nonvalvular atrial fibrillation. METHODS Using transesophageal Doppler echocardiography, peak flow velocity of the LAA was measured at the junction between the left atrium and the LAA during left ventricular (LV) systole and diastole in 21 patients with nonvalvular atrial fibrillation. In six cases, the average peak flow velocity of the LAA for 10 consecutive beats with moderately long R-R intervals (LI beats) was compared with those of 3-5 consecutive beats with extremely short R-R intervals (SI beats). RESULTS Average peak flow velocity of the LAA during LV diastole was significantly higher than that during LV systole (26.5 +/- 15.7 vs. 19.3 +/- 10.4 cm/s, p < 0.01). In SI beats, average peak flow velocity of the LAA was significantly lower than that in LI beats (17.1 +/- 12.1 vs. 21.2 +/- 12.9 cm/s, p < 0.01). CONCLUSION An increased heart rate reduced the peak flow velocity of the LAA in patients with nonvalvular atrial fibrillation, which would promote blood stasis in the LAA.
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Affiliation(s)
- T Noda
- Second Department of Internal Medicine, Gifu University School of Medicine, Japan
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49
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Fukushima M, Isoyama E, Sakaridani N, Sanematsu H, Kadowaki H, Hirakawa S, Miyagawa I. [Renal metastasis originating from liver cancer]. Nihon Hinyokika Gakkai Zasshi 1996; 87:710-3. [PMID: 8709449 DOI: 10.5980/jpnjurol1989.87.710] [Citation(s) in RCA: 4] [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: 02/01/2023]
Abstract
The patient was a 52-year-old man. He was suspected of having right renal carcinoma with hepatic metastasis and was referred to our hospital. The result of percutaneous needle biopsy on the right renal tumor showed a renal cell carcinoma. For the treatment, he underwent transcatheter arterial embolization (TAE) and intramuscular injection of interferon alpha. However, he was getting weaker and weaker and two months later he died due to hepatic failure. The result of autopsy showed that the renal carcinoma was a metastatic tumor from the primary hepatic cancer. This case was thought to be the second case of metastatic renal tumor from hepatic cancer reported in the Japanese literature.
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Affiliation(s)
- M Fukushima
- Department of Urology, Tottori University School of Medicine, Japan
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50
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Iida M, Gotoh K, Yagi Y, Deguchi F, Terashima Y, Nagashima K, Nomura M, Yasuda N, Fujiwara H, Hirakawa S. [Left cardiac output curve and pulmonary venous return curve in patients with various heart diseases]. J Cardiol 1996; 27:21-7. [PMID: 8683431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
This study assessed the cardiac function of humans by drawing simultaneous left cardiac output and pulmonary venous return curves using radionuclide angiocardiography and right heart catheterization which allows recording of the pressure-flow relationship. Thirty-one subjects with various cardiac diseases were divided into two groups [18 patients with New York Heart Association (NYHA) functional class I and 13 patients with NYHA classes II or III]. Mean pulmonary filling pressure (Pmp) was calculated from the formula of Guyton, using pulmonary arterial compliance which was measured by Reuben's method and pulmonary venous compliance measured as reported previously. On the pressure-flow plane, the down slope of the pulmonary venous return curve was drawn by joining the points of (Pmp, 0) and (mean pulmonary capillary wedge pressure, cardiac output). To construct the cardiac output curve, two levels of lower body negative pressure were used to regulate the venous return to the heart. Pmp and the resistance to pulmonary venous return in NYHA II or III patients were significantly higher than those in NYHA I patients (Pmp: 16.3 +/- 1.5 vs 9.0 +/- 0.5 mmHg, p < 0.01; resistance to pulmonary venous return: 0.75 +/- 0.09 vs 0.43 +/- 0.04 mmHg/l/min, p < 0.01, respectively). The slope of pulmonary venous return curve in NYHA II or III patients was smaller than that in NYHA I patients and the pulmonary venous return curve in NYHA II or III patients shifted rightward. The slope of cardiac output curve in NYHA II or III patients was significantly smaller than that in NYHA I patients. This curve in NYHA II or III patients shifted downward and rightward. These results indicate that simultaneous cardiac output and pulmonary venous return curves may be a useful method for assessing the cardiac function in patients with various heart diseases.
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Affiliation(s)
- M Iida
- Second Department of Internal Medicine, Gifu University School of Medicine, Japan
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