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Fujita R, Tachi T, Hino M, Nagata K, Saiki M, Inumaru M, Higa Y, Itokawa K, Uemura N, Matsumura R, Kai I, Sawabe K, Kobayashi M, Isawa H, Kusakabe T, Matsuo K, Kasai S. Blowflies are potential vector for avian influenza virus at enzootic area in Japan. Sci Rep 2024; 14:10285. [PMID: 38704404 PMCID: PMC11069500 DOI: 10.1038/s41598-024-61026-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024] Open
Abstract
High pathogenicity avian influenza (HPAI) poses a significant threat to both domestic and wild birds globally. The avian influenza virus, known for environmental contamination and subsequent oral infection in birds, necessitates careful consideration of alternative introduction routes during HPAI outbreaks. This study focuses on blowflies (genus Calliphora), in particular Calliphora nigribarbis, attracted to decaying animals and feces, which migrate to lowland areas of Japan from northern or mountainous regions in early winter, coinciding with HPAI season. Our investigation aims to delineate the role of blowflies as HPAI vectors by conducting a virus prevalence survey in a wild bird HPAI-enzootic area. In December 2022, 648 Calliphora nigribarbis were collected. Influenza virus RT-PCR testing identified 14 virus-positive samples (2.2% prevalence), with the highest occurrence observed near the crane colony (14.9%). Subtyping revealed the presence of H5N1 and HxN1 in some samples. Subsequent collections in December 2023 identified one HPAI virus-positive specimen from 608 collected flies in total, underscoring the potential involvement of blowflies in HPAI transmission. Our observations suggest C. nigribarbis may acquire the HPAI virus from deceased wild birds directly or from fecal materials from infected birds, highlighting the need to add blowflies as a target of HPAI vector control.
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Affiliation(s)
- Ryosuke Fujita
- Laboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, West-5 543, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Takuji Tachi
- Biosystematics Laboratory, Faculty of Social and Cultural Studies, Kyushu University, Fukuoka, Japan
| | - Masato Hino
- Laboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, West-5 543, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kosuke Nagata
- Laboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, West-5 543, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
- Hokkaido Research Organization, Sapporo, Japan
| | - Masahiro Saiki
- Laboratory of Sanitary Entomology, Faculty of Agriculture, Kyushu University, West-5 543, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Mizue Inumaru
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukiko Higa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Nozomi Uemura
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ryo Matsumura
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Izumi Kai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mutsuo Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takahiro Kusakabe
- Laboratory of Insect Genome Science, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Kazunori Matsuo
- Biosystematics Laboratory, Faculty of Social and Cultural Studies, Kyushu University, Fukuoka, Japan
| | - Shinji Kasai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, Japan
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Uemura N, Itokawa K, Komagata O, Kasai S. Recent advances in the study of knockdown resistance mutations in Aedes mosquitoes with a focus on several remarkable mutations. Curr Opin Insect Sci 2024; 63:101178. [PMID: 38346494 DOI: 10.1016/j.cois.2024.101178] [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] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/08/2024]
Abstract
The Aedes mosquito, which transmits the dengue fever virus and other viruses, has acquired resistance to pyrethroid insecticides in a naturally selective manner. Massive use of insecticides has led to the worldwide expansion of resistant populations. The major factor in pyrethroid resistance is knockdown resistance (kdr) caused by amino acid mutation(s) in the voltage-gated sodium channel, which is the target site of this insecticide group. Some kdr mutations can lead to a dramatic increase in resistance, and multiple mutations can increase the level of pyrethroid resistance by 10 to several-hundred. In this review, we summarize the kdr identified in Aedes mosquitoes with a focus on the recent advances in the study of kdr.
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Affiliation(s)
- Nozomi Uemura
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Osamu Komagata
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Shinji Kasai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.
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Takeda A, Doi T, Asada A, Yuzawa K, Nagasawa A, Igarashi K, Maeno T, Suzuki A, Shimizu S, Uemura N, Nakajima J, Suzuki T, Inomata A, Tagami T. The biological effects and thermal degradation of NPB-22, a synthetic cannabinoid. Forensic Toxicol 2024:10.1007/s11419-023-00679-5. [PMID: 38294576 DOI: 10.1007/s11419-023-00679-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/29/2023] [Indexed: 02/01/2024]
Abstract
PURPOSE NPB-22 (quinolin-8-yl 1-pentyl-1H-indazole-3-carboxylate), Adamantyl-THPINACA (N-(1-adamantantyl)-1-[(tetrahydro-2H-pyran-4-yl)methyl]-1H-indazole-3-carboxamide), and CUMYL-4CN-B7AICA (1-(4-cyanobutyl)-N-(2-phenylpropan-2-yl)-1H- pyrrolo[2,3-b]pyridine-3-carboxamide), synthetic cannabinoids were evaluated in terms of CB1 (cannabinoid receptor type 1) and CB2 (cannabinoid receptor type 2) activities, and their biological effects when inhaled similar to cigarettes were examined. METHODS The half maximal effective concentration values of the aforementioned synthetic cannabinoids at the CB1 and CB2 were investigated using [35S]guanosine-5'-O-(3-thio)-triphosphate binding assays. In addition, their biological effects were evaluated using the inhalation exposure test with mice. The smoke generated was recovered by organic solvents in the midget impingers, and the thermal degradation compounds of the smoke components were identified and quantified using a liquid chromatography-photo diode array detector. RESULTS NPB-22 and Adamantyl-THPINACA had equivalent CB1 activity in in vitro assays. Meanwhile, NPB-22 had a weaker biological effect on some items on the inhalation exposure test than Adamantyl-THPINACA. When analyzing organic solvents in the midget impingers, it was revealed that NPB-22 was degraded to 8-quinolinol and pentyl indazole 3-carboxylic acid by combustion. In addition, these degradation compounds did not have CB1 activity. CONCLUSION It was estimated that the biological effects of NPB-22 on the inhalation exposure test weakened because it underwent thermal degradation by combustion, and the resultant degradation compounds did not have any CB1 activity in vitro.
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Affiliation(s)
- Akihiro Takeda
- Division of Hygienic Chemistry, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan.
| | - Takahiro Doi
- Division of Hygienic Chemistry, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
| | - Akiko Asada
- Division of Hygienic Chemistry, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
| | - Katsuhiro Yuzawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Akemichi Nagasawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Kai Igarashi
- Tolyo Metropolitan Island Public Health Center, 2466-2 Okago, Hachijo-machi, Hachijojima, Tokyo, 100-1492, Japan
| | - Tomokazu Maeno
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Atsuko Suzuki
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Seiko Shimizu
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Nozomi Uemura
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Jun'ichi Nakajima
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Toshinari Suzuki
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Takaomi Tagami
- Division of Hygienic Chemistry, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
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Morita T, Yoshida H, Abe Y, Tomita K, Nakamura A, Hada C, Nakai C, Kina K, Takahashi M, Uemura N, Yoneda T, Yasui M, Shintani Y, Tomita N, Inagaki A, Izutsu KI, Sato Y. Analysis of Factors Related to Variation in Dissolution Profiles Estimated from Continuously Conducted Dissolution Tests of Generic Products. Chem Pharm Bull (Tokyo) 2024; 72:28-35. [PMID: 38171902 DOI: 10.1248/cpb.c23-00647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The development of generic pharmaceuticals involves a bioequivalence study to ensure the therapeutic equivalence of the test formulation to the original innovative product. The formulation characteristics of generic products are expected to be maintained in the long term after approval. This study analyzed the factors contributing to the changes in the dissolution profiles of approved products during their life cycles. Cumulative data on the dissolution similarity of 1675 products of 127 ingredients tested by official laboratories in Japan were assessed according to Japanese bioequivalence guidelines with slight modifications. The products showing dissimilarities in dissolution profiles were analyzed for reporting year, therapeutic category, co-development, physical properties of the active pharmaceutical ingredient (API), and suspected reasons for dissolution change. The increase in the number of dissimilar products is related to the co-development of generic products. Although the solubility of the API was not associated with the dissolution change in the analysis of the total dissolution data, control of the API particle size is suggested to be important for drugs with poorly soluble APIs. Additionally, a risk factor for dissolution changes in the test solutions at a certain pH was the presence of acidic or basic residues. These results indicate the importance of proper development through a thorough evaluation of the formulation and process factors affecting the dissolution properties throughout the product lifecycle.
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Affiliation(s)
- Tokio Morita
- Division of Drugs, National Institute of Health Sciences
| | | | - Yasuhiro Abe
- Division of Drugs, National Institute of Health Sciences
| | - Koji Tomita
- Aichi Prefectural Institute of Public Health
| | | | | | - Chiyori Nakai
- Kyoto Prefectural Institute of Public Health and Environment
| | - Keishi Kina
- Saitama Prefectural Institute of Public Health
| | | | | | - Tetsuya Yoneda
- Toyama Prefectural Institute for Pharmaceutical Research
| | - Maki Yasui
- Hyogo Prefectural Institute of Public Health Science
| | | | - Naomi Tomita
- Division of Drugs, National Institute of Health Sciences
| | - Aoi Inagaki
- Division of Drugs, National Institute of Health Sciences
| | | | - Yoji Sato
- Division of Drugs, National Institute of Health Sciences
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Uemura N, Furutani S, Tomita T, Itokawa K, Komagata O, Kasai S. Concomitant knockdown resistance allele, L982W + F1534C, in Aedes aegypti has the potential to impose fitness costs without selection pressure. Pestic Biochem Physiol 2023; 193:105422. [PMID: 37247997 DOI: 10.1016/j.pestbp.2023.105422] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 05/31/2023]
Abstract
The Aedes aegypti mosquito, is an arbovirus vector that can spread dengue, chikungunya, Zika, and yellow fever. Pyrethroids are widely used to control mosquitoes. The voltage-gated sodium channel (Vgsc) is the target of pyrethroids, and amino acid substitutions in this channel attenuate the effects of pyrethroids. This is known as knockdown resistance (kdr). Recently, we found that Ae. aegypti with concomitant Vgsc mutations L982W + F1534C exhibit extremely high levels of pyrethroid resistance. L982 is located in a highly conserved region of Vgsc in vertebrates and invertebrates. This study aimed to evaluate the viability of Ae. aegypti, with concomitant L982W + F1534C mutations in Vgsc. We crossed a resistant strain (FTWC) with a susceptible strain (SMK) and reared it up to 15 generations. We developed a rapid and convenient genotyping method using a fluorescent probe (Eprobe) to easily and accurately distinguish between three genotypes: wild-type and mutant homozygotes, and heterozygotes. As generations progressed, the proportion of wild-type homozygotes increased, and only 2.9% of mutant homozygotes were present at the 15th generation; the allele frequencies of L982W + F1534C showed a decreasing trend over generations. These observations show that these concomitant mutations have some fitness costs, suggesting that mosquitoes can potentially recover pyrethroid susceptibility over time without pyrethroid selection pressure in the field.
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Affiliation(s)
- Nozomi Uemura
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Shogo Furutani
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Takashi Tomita
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Osamu Komagata
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Shinji Kasai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.
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Ichikawa-Kaji Y, Ishizawa F, Nishiyama R, Tachikawa H, Uemura N, Moriuchi Y, Hsiao YY, Moriyasu T, Suzuki T, Takahashi Y, Inomata A. Development of a detector tube for screening tadalafil and its analogues in adulterated sexual enhancement products. Drug Test Anal 2023; 15:345-360. [PMID: 36522169 DOI: 10.1002/dta.3424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Sexual enhancement products adulterated with phosphodiesterase 5 inhibitors (PDE-5i) pose a serious public health concern. Tadalafil and its analogues (Tds) are PDE-5i frequently detected as adulterants. In this study, a Td detector tube for the rapid detection of Tds was developed based on the color change reaction between sulfuric acid and Tds. The specificity of this test method was evaluated using 13 Tds, all of which elicited positive results. Additionally, 30 commonly found adulterants in dietary supplements, 11 active pharmaceutical ingredients of psychotropic drugs and 18 food ingredients were tested and obtained no false-positive results, except levomepromazine. The test tube accurately detected the presence or absence of Tds in 54 commercially available products. The visual detection limit was 2-50 and 5-20 μg/ml for Tds and tadalafil-spiked samples with matrix, respectively. The applicability of the developed detector tube to a semiquantitative test using digital image analyses were investigated using red, green, and blue color values. The results of the recovery test suggested that the tube test was affected by the dark-colored matrix. The results of semiquantitative analyses of tadalafil for five marketed products were consistent with the liquid chromatographic quantification results, except for the blue value. The detector tube developed in this study can facilitate with the rapid screening of Tds in adulterated sexual enhancement products.
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Affiliation(s)
- Yoko Ichikawa-Kaji
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan.,Department of Legal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Fujio Ishizawa
- Department of Legal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Rei Nishiyama
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Hajime Tachikawa
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Nozomi Uemura
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yuka Moriuchi
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yi-Yang Hsiao
- Department of Legal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Takako Moriyasu
- Tokyo Food Sanitation Association Food Research Laboratory, Tokyo, Japan
| | - Toshinari Suzuki
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yoichiro Takahashi
- Department of Legal Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Akiko Inomata
- Department of Pharmaceutical and Environmental Sciences, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
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Kasai S, Itokawa K, Uemura N, Takaoka A, Furutani S, Maekawa Y, Kobayashi D, Imanishi-Kobayashi N, Amoa-Bosompem M, Murota K, Higa Y, Kawada H, Minakawa N, Cuong TC, Yen NT, Phong TV, Keo S, Kang K, Miura K, Ng LC, Teng HJ, Dadzie S, Subekti S, Mulyatno KC, Sawabe K, Tomita T, Komagata O. Discovery of super-insecticide-resistant dengue mosquitoes in Asia: Threats of concomitant knockdown resistance mutations. Sci Adv 2022; 8:eabq7345. [PMID: 36542722 PMCID: PMC9770935 DOI: 10.1126/sciadv.abq7345] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/04/2022] [Indexed: 05/29/2023]
Abstract
Aedes aegypti (Linnaeus, 1762) is the main mosquito vector for dengue and other arboviral infectious diseases. Control of this important vector highly relies on the use of insecticides, especially pyrethroids. The high frequency (>78%) of the L982W substitution was detected at the target site of the pyrethroid insecticide, the voltage-gated sodium channel (Vgsc) of A. aegypti collected from Vietnam and Cambodia. Alleles having concomitant mutations L982W + F1534C and V1016G + F1534C were also confirmed in both countries, and their frequency was high (>90%) in Phnom Penh, Cambodia. Strains having these alleles exhibited substantially higher levels of pyrethroid resistance than any other field population ever reported. The L982W substitution has never been detected in any country of the Indochina Peninsula except Vietnam and Cambodia, but it may be spreading to other areas of Asia, which can cause an unprecedentedly serious threat to the control of dengue fever as well as other Aedes-borne infectious diseases.
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Affiliation(s)
- Shinji Kasai
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Nozomi Uemura
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Aki Takaoka
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Shogo Furutani
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Yoshihide Maekawa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | | | - Michael Amoa-Bosompem
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Katsunori Murota
- Kagoshima Research Station, National Institute of Animal Health, National Agriculture and Food Research Organization, Kagoshima 891-0105, Japan
| | - Yukiko Higa
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Hitoshi Kawada
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Noboru Minakawa
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Tran Chi Cuong
- Medical Entomology and Zoology Department, National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Nguyen Thi Yen
- Medical Entomology and Zoology Department, National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Tran Vu Phong
- Medical Entomology and Zoology Department, National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Sath Keo
- Faculty of Veterinary Medicine, Royal University of Agriculture, P.O. Box 2696, Phnom Penh, Cambodia
| | - Kroesna Kang
- Faculty of Veterinary Medicine, Royal University of Agriculture, P.O. Box 2696, Phnom Penh, Cambodia
| | - Kozue Miura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan
| | - Lee Ching Ng
- Environmental Health Institute, National Environment Agency, Singapore 138667, Singapore
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Hwa-Jen Teng
- Center for Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei City 10050, Taiwan
| | - Samuel Dadzie
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P.O. Box LG 581, Legon,, Ghana
| | - Sri Subekti
- Entomology Study Group, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Kris Cahyo Mulyatno
- Entomology Study Group, Institute of Tropical Disease, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Takashi Tomita
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Osamu Komagata
- Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
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8
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Ichikawa-Kaji Y, Ishizawa F, Nishiyama R, Tachikawa H, Uemura N, Moriuchi Y, Umino K, Hsiao Y, Muramatsu H, Suzuki T, Inomata A, Honda K, Moriyasu T. Development of a detector tube for rapid detection of tadalafil in adulterated dietary supplements. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.356] [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: 10/18/2022]
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Ishibashi K, Sasaki E, Ota S, Oyama T, Chiba D, Yamamoto Y, Tsuda E, Uemura N, Sawada K, Ishibashi Y. Bone marrow lesion severity was associated with proximal tibial inclination in early knee osteoarthritis. Knee Surg Sports Traumatol Arthrosc 2022; 30:668-679. [PMID: 33394079 DOI: 10.1007/s00167-020-06378-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/17/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE This study aimed to investigate the effect of tibial plateau (TP) inclination and serum bone metabolic markers on bone marrow lesion (BML) in the general Japanese population with early knee osteoarthritis (EKOA). METHODS A total of 441 female volunteers who participated in the Iwaki Health Promotion Project in 2017 were enrolled. Participants without radiographic abnormalities were divided into normal and EKOA groups according to the Luyten's classification criteria for EKOA. The medial proximal tibial angle (MPTA), growth plate-TP angle, and growth plate-medial tibial plateau (MTP) angle were measured on standing anteroposterior radiographs of the knees. BML severity on T2-weighted fat-suppressed magnetic resonance imaging (MRI) was scored using the Whole-Organ MRI Score method. Serum levels of N-telopeptide of type I collagen, tartrate-resistant acid phosphatase-5b (TRACP-5b), bone-specific alkaline phosphatase, procollagen type I N-terminal propeptide, pentosidine, and homocysteine were assessed. Linear regression analysis was conducted to investigate the relationship between proximal tibial inclination, BML, and serum bone metabolic markers. RESULTS The growth plate was observed in 309 (70%) participants, and 48 (16%) participants had EKOA. The mean MPTA, growth plate-TP angle, and growth plate-MTP angle were 86.1 ± 5.9°, 3.6 ± 1.1°, and 9.9 ± 2.6°, respectively. The MPTA was negatively correlated with the growth plate-TP and growth plate-MTP angles (p = 0.006, p < 0.001). Participants with EKOA who had BML exhibited greater growth plate-MTP angle than those who did not (p = 0.018). Regression analysis revealed that BML severity was positively associated with MPTA (p = 0.036) and a bone formation marker (p = 0.045). CONCLUSION BML severity was positively associated with proximal tibial inclination and serum TRACP-5b level in participants with EKOA and normal knees, respectively. Assessment of proximal tibial inclination may provide insight into potential BML risk. Residual medial tibial inclination may potentially result in knee pain and symptoms in EKOA. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Kyota Ishibashi
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
| | - Eiji Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Seiya Ota
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Tetsushi Oyama
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Daisuke Chiba
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yuji Yamamoto
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Eiichi Tsuda
- Department of Rehabilitation Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Nozomi Uemura
- Department of QOL and Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kaori Sawada
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
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Konishi S, Hatakeyama S, Imai A, Okita K, Kido K, Ozaki Y, Uemura N, Iwane T, Okamoto T, Yamamoto H, Yoneyama T, Hashimoto Y, Ohyama C. Effect of advanced glycation end products on nocturia or sleep disorders: A longitudinal study. BJUI Compass 2021; 3:162-168. [PMID: 35474730 PMCID: PMC8988819 DOI: 10.1002/bco2.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/03/2021] [Accepted: 09/12/2021] [Indexed: 11/05/2022] Open
Affiliation(s)
- Sakae Konishi
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Shingo Hatakeyama
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Atsushi Imai
- Department of Urology Oyokyo Kidney Research Institute Hirosaki Japan
| | - Kazutaka Okita
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Koichi Kido
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Yusuke Ozaki
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Nozomi Uemura
- Innovation Center for Health Promotion Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Takuro Iwane
- Hirosaki University COI Research Initiative Organization Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Teppei Okamoto
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Hayato Yamamoto
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Takahiro Yoneyama
- Department of Advanced Transplant and Regenerative Medicine Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Yasuhiro Hashimoto
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Chikara Ohyama
- Department of Urology Hirosaki University Graduate School of Medicine Hirosaki Japan
- Department of Advanced Transplant and Regenerative Medicine Hirosaki University Graduate School of Medicine Hirosaki Japan
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11
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Ozaki Y, Okamoto T, Miura Y, Iida K, Uemura N, Sugimura Y, Hatakeyama S, Urushidate S, Ohyama C. Association between female urinary urgency and aponeurotic ptosis: Results from a community-based cross-sectional study in Japan. Neurourol Urodyn 2021; 40:1678-1685. [PMID: 34174106 DOI: 10.1002/nau.24736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/08/2021] [Accepted: 06/08/2021] [Indexed: 11/05/2022]
Abstract
AIMS To investigate the relationship between urinary urgency (UU) and aponeurotic ptosis (AP) in a health promotion project. METHODS This cross-sectional study analyzed 658 women in Aomori, Japan. The presence of UU was evaluated using the Overactive Bladder Symptom Score. The distance from the light reflex on the cornea to the upper eyelid (margin reflex distance-1 [MRD-1]) was measured. AP was defined as MRD-1 of less than 2.0 mm. The daily salt intake amount was estimated using the dietary questionnaire. Daily salt intake was defined as excessive if it was 10 g/day or higher. Independent factors of UU and AP were analyzed via multivariable logistic regression model. RESULTS The number of women with UU and AP was 193 and 65, respectively. Similar background differences were observed in age, cardiovascular disease history, renal function, hypertension, diabetes mellitus, dyslipidemia, and daily salt intake between participants with UU and those with AP. Participants with UU had a higher prevalence of AP (19% vs. 6.2%) than those without. Moreover, more than 50% of the women with AP experienced UU. Multivariable logistic analysis on UU showed that age (≥65 years), diabetes mellitus, daily salt intake (≥10 g/day), and AP (odds ratio, 2.07, p = .014) were independent factors. Multivariable analysis on AP revealed that age (≥65 years), hypertension, daily salt intake (≥10 g/day), and UU were independent factors. CONCLUSIONS AP was an independent indicator of UU, in addition to excessive daily salt intake. Women with AP may tend to intake excessive salt and experience UU.
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Affiliation(s)
- Yusuke Ozaki
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Teppei Okamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuuki Miura
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Keiichiro Iida
- Department of Plastic and Reconstructive Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Nozomi Uemura
- Department of Social Medicine, Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yoshikuni Sugimura
- Department of Social Medicine, Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Satoshi Urushidate
- Department of Plastic and Reconstructive Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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12
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Tachikawa H, Nishiyama R, Ichikawa-Kaji Y, Uemura N, Takaku Y, Kishimoto K, Ono Y, Tayama K, Suzuki T, Suzuki J, Moriyasu T. Structure elucidation of a PDE5 inhibitor detected as an illegal adulteration in a libido-boosting dietary supplement. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 37:2023-2032. [PMID: 33136535 DOI: 10.1080/19440049.2020.1826582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A compound with potent inhibitory activity for phosphodiesterase type 5 (PDE5) was identified as an illegal adulteration in a libido-boosting dietary supplement being sold at a store in Tokyo. This compound was identified as 5,6-diethyl-2-{5-[(4-methylpiperazin-1-yl)sulphonyl]-2-propoxyphenyl}pyrimidin-4(3H)-one using liquid chromatography-diode array detector (LC-DAD), liquid chromatography-tandem mass spectrometer (LC-MS), LC-HRMS, nuclear magnetic resonance (NMR), and X-ray crystallography. The IC50 value of the inhibitory activity for PDE5A1 (one of the PDE5 isoforms) was 2.0 nM (sildenafil IC50 value was 4.5 nM). This compound was previously synthesised as a PDE5 inhibitor by Shanghai Institute of Materia Medica. The dietary supplement contained 85 mg of this compound in a capsule, which was about 26% of the capsule content (320 mg).
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Affiliation(s)
- Hajime Tachikawa
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Rei Nishiyama
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Yoko Ichikawa-Kaji
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Nozomi Uemura
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Yasuhiro Takaku
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Kiyoko Kishimoto
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Yasushi Ono
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Kuniaki Tayama
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Toshinari Suzuki
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Jin Suzuki
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
| | - Takako Moriyasu
- Department of Pharmaceutical Sciences, Tokyo Metropolitan Institute of Public Health , Tokyo, Japan
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Ichikawa-Kaji Y, Nakajima J, Kikkawa S, Ishizawa F, Nishiyama R, Kishimoto K, Uemura N, Satoh M, Suzuki J, Inomata A, Nakae D, Azumaya I, Honda K, Moriyasu T. [Identification of Descarbonsildenafil in an Adulterated Dietary Supplement and Evaluation of Its Inhibitory Activity for Phosphodiesterase Type 5 (PDE5)]. Shokuhin Eiseigaku Zasshi 2020; 61:34-40. [PMID: 32336717 DOI: 10.3358/shokueishi.61.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Some illegal dietary supplements contain phosphodiesterase type 5 (PDE5) inhibitors, such as sildenafil, for exerting "therapeutic" effects in erectile dysfunction. This is apparently dangerous, and thus, should be appropriately regulated. Identification of descarbonsildenafil was first reported in Singapore in a coffee sample labeled to exert male sexual performance enhancement effects. However, it is unclear whether the compound possesses PDE5 inhibitory activity. We encountered during our survey of dietary supplements, a sexual enhancement product commercially available in Tokyo, in which a peak presumed to be of descarbonsildenafil was detected by LC-UV and electrospray ionization-tandem MS (ESI-MS/MS). The compound was isolated and identified as descarbonsildenafil with liquid chromatography-quadrupole time-of-flight-mass spectrometry (LC-QTOF-MS), NMR, and X-ray crystal structural analysis. In addition, descarbonsildenafil showed PDE5 inhibitory activity in PDE5 inhibition assay, and its IC50 value for PDE5A1 was found to be 30 nmol/L. The results of INADEQUATE NMR and X-ray crystal structural analysis in this study provide information for the identification of descarbonsildenafil. Since this study indicates that this compound is a PDE5 inhibitor having adequate activity, it is regulated as a drug component in Japan.
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Affiliation(s)
| | | | | | | | | | | | | | - Miki Satoh
- Tokyo Metropolitan Institute of Public Health
| | - Jin Suzuki
- Tokyo Metropolitan Institute of Public Health
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Takeda A, Doi T, Asada A, Suzuki T, Yuzawa K, Ando H, Kubo Y, Nagasawa A, Kaihoko F, Hasegawa Y, Tanaka K, Igarashi K, Maeno T, Suzuki A, Shimizu S, Uemura N, Nakajima J, Suzuki J, Tagami T. Evaluation of carboxamide-type synthetic cannabinoids on the functional activities at cannabinoid receptors and biological effects via inhalation exposure test. Forensic Toxicol 2020. [DOI: 10.1007/s11419-020-00534-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Huang H, Mikami Y, Shigematsu K, Uemura N, Shinsaka M, Iwatani A, Miyake F, Kabe K, Takai Y, Saitoh M, Baba K, Seki H. Kagami-Ogata syndrome in a fetus presenting with polyhydramnios, malformations, and preterm delivery: a case report. J Med Case Rep 2019; 13:340. [PMID: 31753000 PMCID: PMC6873543 DOI: 10.1186/s13256-019-2298-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 10/18/2019] [Indexed: 11/10/2022] Open
Abstract
Background Kagami–Ogata syndrome is also known as paternal uniparental disomy 14 and related disorders and is caused by abnormal genomic imprinting in the long arm of the chromosome 14q32.2 region. Its clinical manifestations include polyhydramnios in the fetal stage, respiratory insufficiency because of a small thorax, abdominal wall abnormalities, and peculiar facial features after birth. Case presentation A 38-year-old Japanese primigravida woman was referred to our hospital in the 19th week of pregnancy for suspected omphalocele. She had a history of hypothyroidism but was prescribed orally administered levothyroxine (50 μg/day) prior to conception and was euthyroid. Her ultrasound scan prior to visiting our hospital revealed fetal omphalocele, heavy for date, and polyhydramnios. The mother was advised to be admitted for observation from 28 weeks of gestation for threatened premature delivery. She required amniodrainage at 29 and 32 weeks of gestation. At 35 weeks of gestation, the fetal membrane prematurely ruptured and she gave birth after an emergency Cesarean section. The infant was a male child with a birth weight of 3188 g, and was suspected to have Kagami–Ogata syndrome after birth based on thoracic hypoplasia, swallowing function abnormalities, and peculiar facial features. A definitive diagnosis was established by performing genetic testing of the infant after obtaining informed written consent from both the parents; the results of the genetic testing revealed hypermethylated intergenic-differentially methylated region and maternally expressed gene 3-differentially methylated region in the corresponding chromosome 14 region. Both the parents were genetically tested after adequate genetic counseling, which revealed a de novo microdeletion in a differentially methylated region. Conclusion Kagami–Ogata syndrome should have been suspected because of the presence of polyhydramnios and omphalocele during pregnancy. Respiratory insufficiency soon after birth, because of a small thorax, is expected in this disease and a diagnosis during pregnancy may have enabled appropriate care after birth.
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Affiliation(s)
- Haipeng Huang
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan.
| | - Yukiko Mikami
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Kosuke Shigematsu
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Nozomi Uemura
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Mamiko Shinsaka
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Ayaka Iwatani
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Fumihito Miyake
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Kazuhiko Kabe
- Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Kawagoe, Japan
| | - Yasushi Takai
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Masahiro Saitoh
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Kazunori Baba
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Hiroyuki Seki
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
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Uemura N, Takai Y, Mikami Y, Ogasawara M, Saitoh M, Baba K, Tamaru J, Hara M, Seki H. Molecular cytogenetic analysis of a hydatidiform mole with coexistent fetus: a case report. J Med Case Rep 2019; 13:256. [PMID: 31421684 PMCID: PMC6698339 DOI: 10.1186/s13256-019-2180-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 06/27/2019] [Indexed: 11/10/2022] Open
Abstract
Background A hydatidiform mole with a coexisting fetus is a rare condition that commonly occurs as either a partial mole with fetus or a twin pregnancy comprising a complete mole and normal fetus. In the former case, the fetus is triploid, and in the latter case, the fetus is diploid with different alleles from those of the mole. Because there is a difference in the persistent trophoblastic disease incidence between the two, an accurate diagnosis is required. Case presentation We present a case of a 34-year-old Japanese woman who was pregnant with a hydatidiform mole and two coexisting fetuses. At 17 weeks of gestation, hemorrhage-induced progressive anemia in the mother prompted the decision to terminate the pregnancy, after which no complications occurred. Molecular cytogenetic analysis revealed that one of the fetuses was a normal diploid fetus with the same allele in the fetus and placenta. The hydatidiform mole was revealed to be a mosaic of two diploids, and the other coexisting fetus was a normal diploid that shared one of the mole alleles. Conclusions This was presumed to be a rare case of twin pregnancy by triploid embryo formation, followed by loss of an allele due to postzygotic diploidization, development of a diploid fetus, and development of another fetus from a separate embryo. Because of the existence of cases such as this one with a diploid fetus, but without a normal pregnancy coexistent with a complete hydatidiform mole, diagnosis by genetic analysis is required for prognosis.
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Affiliation(s)
- Nozomi Uemura
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan.
| | - Yasushi Takai
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan
| | - Yukiko Mikami
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan
| | | | - Masahiro Saitoh
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan
| | - Kazunori Baba
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan
| | - Junichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, 350-8550, Japan
| | - Masaaki Hara
- Department of Forensic Medicine, Saitama Medical University, Iruma, Saitama, 350-0495, Japan
| | - Hiroyuki Seki
- Center for Maternal, Fetal and Neonatal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama, 350-8550, Japan
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Mikami Y, Takai Y, Obata-Yasuoka M, Kumagai R, Yagyu H, Shigematsu K, Huang H, Uemura N, Shinsaka M, Saitoh M, Baba K, Seki H. Diagnosis of female 17α-hydroxylase deficiency after gonadectomy: a case report. J Med Case Rep 2019; 13:235. [PMID: 31358067 PMCID: PMC6664496 DOI: 10.1186/s13256-019-2166-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 06/18/2019] [Indexed: 12/02/2022] Open
Abstract
Background 17α-Hydroxylase deficiency is a recessively inherited autosomal disease caused by mutations in the CYP17A1 gene. It is a rare disease and accounts for approximately 1% of congenital adrenal cortex hyperplasias. Inhibition of 17α-hydroxylase causes low levels of cortisol and high levels of adrenocorticotropic hormone in the blood as well as excessive levels of mineralocorticoids that lead to hypertension and hypokalemia. Usually, the female patients are diagnosed with abnormality of the genitalia or extra genitalia, primary amenorrhea, or hypertension in puberty. We report a case of a 29-year-old woman who had undergone gonadectomy in her childhood due to complete androgen insensitivity syndrome and was diagnosed with 17α-hydroxylase deficiency in adulthood. Case presentation Our patient was a Japanese female diagnosed with androgen insensitivity syndrome, and both gonadectomy and episioplasty were performed at the age of 11 years at the University of Tsukuba Hospital. Thereafter, she was transferred to our hospital at the age of 21 years for vaginoplasty. At the age of 25 years, she presented with hypertension followed by complicated hypokalemia at the age of 28 years. The captopril loading test and adrenocorticotropic hormone loading test of her adrenal steroidogenesis revealed primary aldosteronism. After sufficient genetic counseling, a genetic test was performed that identified her as having CYP17A1 gene mutation. Conclusions The differential diagnosis of disorders of sex development can be difficult at a young age without complete expression of the phenotype. However, diagnosis at a later age would change the treatment and prognosis of the disease; therefore, a genetic examination should be considered.
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Affiliation(s)
- Yukiko Mikami
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan.
| | - Yasushi Takai
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Mana Obata-Yasuoka
- Department of Obstetrics and Gynecology Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Ryo Kumagai
- Department of Endocrinology and Metabolism Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, Ibaraki, Japan
| | - Hiroaki Yagyu
- Department of Endocrinology and Metabolism Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, Ibaraki, Japan
| | - Kosuke Shigematsu
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Haipeng Huang
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Nozomi Uemura
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Mamiko Shinsaka
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Masahiro Saitoh
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Kazunori Baba
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
| | - Hiroyuki Seki
- Department of Obstetrics and Gynecology, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe City, Saitama, 350-3550, Japan
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Ferronato MCF, Giangarelli DC, Mazzaro D, Uemura N, Sofia SH. Orchid Bee (Apidae: Euglossini) Communities in Atlantic Forest Remnants and Restored Areas in Paraná State, Brazil. Neotrop Entomol 2018; 47:352-361. [PMID: 28500473 DOI: 10.1007/s13744-017-0530-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
In this study, we compare orchid bee communities surveyed in four forest remnants of the Atlantic Forest and four reforested areas characterized by seasonal semi-deciduous forest vegetation in different successional stages (mature and secondary vegetation), located in southern Brazil. The sizes of forest remnants and reforested areas varied from 32.1 to 583.9 ha and from 11.3 to 33.3 ha, respectively. All reforested areas were located near one forest remnant. During samplings, totaling nine per study area, euglossine males were attracted to eight scent baits and captured with bait trap and entomological nets. Each forest remnant and its respective reforested area were sampled simultaneously by two collectors. We collected 435 males belonging to nine species of orchid bees distributed in four genera. The number of individuals and species did not differ significantly between different areas, except for a reforested area (size 33.3 ha), which was located far from its respective forest remnant. Our findings also revealed an apparent association between an orchid bee species (Euglossa annectans Dressler 1982) and the most preserved area surveyed in our study, suggesting that this bee is a potential indicator of good habitat quality in recuperating or preserved areas. Our results suggest that reforested habitats located near forest remnants have a higher probability of having reinstated their euglossine communities.
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Affiliation(s)
- M C F Ferronato
- Lab de Genética e Ecologia Animal, Depto de Biologia Geral, Centro de Ciências Biológicas, Univ Estadual de Londrina, Rod. Celso Garcia Cid, km 380, CP 10.0111, Londrina, Paraná, 86057-970, Brasil
| | - D C Giangarelli
- Lab de Genética e Ecologia Animal, Depto de Biologia Geral, Centro de Ciências Biológicas, Univ Estadual de Londrina, Rod. Celso Garcia Cid, km 380, CP 10.0111, Londrina, Paraná, 86057-970, Brasil
| | - D Mazzaro
- Lab de Genética e Ecologia Animal, Depto de Biologia Geral, Centro de Ciências Biológicas, Univ Estadual de Londrina, Rod. Celso Garcia Cid, km 380, CP 10.0111, Londrina, Paraná, 86057-970, Brasil
| | - N Uemura
- Lab de Genética e Ecologia Animal, Depto de Biologia Geral, Centro de Ciências Biológicas, Univ Estadual de Londrina, Rod. Celso Garcia Cid, km 380, CP 10.0111, Londrina, Paraná, 86057-970, Brasil
| | - S H Sofia
- Lab de Genética e Ecologia Animal, Depto de Biologia Geral, Centro de Ciências Biológicas, Univ Estadual de Londrina, Rod. Celso Garcia Cid, km 380, CP 10.0111, Londrina, Paraná, 86057-970, Brasil.
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Okuda S, Uemura N, Uemura M, Yamakado H, Takahashi R. A novel mice model for Parkinson’s disease: Fibril-inoculated mutant α-Synuclein BAC Transgenic Mice. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2031] [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: 10/18/2022]
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Kaji S, Maki T, Uemura N, Takahashi R. Elucidating alpha-synuclein pathology of multiple system atrophy using primary oligodendrocyte culture. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.243] [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: 11/15/2022]
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21
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Sato Y, Ohnuma H, Okamoto K, Miyamoto H, Hirakawa M, Uemura N, Kikuchi S, Sagawa T, Fujikawa K, Takahashi Y, Minami S, Okuda T, Takahashi M, Kato J, Takayama T. Phase II study of modified docetaxel, cisplatin and S-1 (mDCS) combination chemotherapy in patients with unresectable metastatic gastric cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.064] [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: 11/12/2022] Open
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22
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Mitani S, Oze I, Kadowaki S, Masuishi T, Narita Y, Taniguchi H, Ura T, Ando M, Tajika M, Makita C, Kodaira T, Uemura N, Abe T, Muro K. Risk of second malignancies after definitive therapy for esophageal cancer: A competing risk analysis. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.018] [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: 11/14/2022] Open
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23
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Caro L, de Hoon J, Depré M, Cilissen C, Miller J, Gao W, Panebianco D, Guo Z, Troemel SL, Anderson MS, Uemura N, Butterton J, Wagner J, Wright DH. Single-Dose and Multiple-Dose Pharmacokinetics of Vaniprevir in Healthy Men. Clin Transl Sci 2017; 10:480-486. [PMID: 28796416 PMCID: PMC6402189 DOI: 10.1111/cts.12482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 05/22/2017] [Indexed: 12/26/2022] Open
Abstract
Vaniprevir is an inhibitor of the hepatitis C virus (HCV) NS3/4A protease. The aim of these double‐blind, placebo‐controlled phase I studies was to evaluate the safety and pharmacokinetics of vaniprevir in healthy male volunteers. The primary objective for both studies was the safety and tolerability of vaniprevir. Single‐dose and steady‐state pharmacokinetics were also assessed. In both studies, there was no apparent relationship between the frequency or intensity of adverse events and vaniprevir dose. At single doses >20 mg, the plasma area under the curve (AUC)0–∞ and maximum concentration (Cmax) increased in a greater‐than‐dose‐proportional manner. The geometric mean ratios (GMRs; fed/fasted) were 1.22 and 0.79 for AUC0–∞ and Cmax, respectively. Following multiple doses, GMR accumulations for AUC0–12h and Cmax (day 14/day 1) ranged from 1.53 to 1.90 and from 1.41 to 1.92, respectively. These data support the use of vaniprevir with peginterferon and ribavirin in patients with HCV infection.
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Affiliation(s)
- L Caro
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - J de Hoon
- Center for Clinical Pharmacology, University Hospitals, Leuven, Belgium
| | - M Depré
- Center for Clinical Pharmacology, University Hospitals, Leuven, Belgium
| | - C Cilissen
- Merck Sharp & Dohme (Europe) Inc., Brussels, Belgium
| | - J Miller
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - W Gao
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | | | - Z Guo
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - S L Troemel
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | | | - N Uemura
- Merck & Co., Inc., Kenilworth, New Jersey, USA.,Current affiliation: Oita University, Oita, Japan
| | - J Butterton
- Merck & Co., Inc., Kenilworth, New Jersey, USA
| | - J Wagner
- Merck & Co., Inc., Kenilworth, New Jersey, USA.,Current affiliation: Takeda Pharmaceuticals U.S.A., Inc., Deerfield, Illinois, USA
| | - D H Wright
- Merck & Co., Inc., Kenilworth, New Jersey, USA
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24
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Inomata A, Ogata A, Tada Y, Nagasawa A, Yuzawa K, Ando H, Kubo Y, Takahashi H, Kaihoko F, Tanaka K, Nakajima J, Suzuki A, Uemura N, Moriyasu T, Watanabe D, Ishihara K, Usami T, Kamei S, Kohno Y. Inhalation Exposure Method for Illegal Drugs. YAKUGAKU ZASSHI 2017; 137:1005-1015. [DOI: 10.1248/yakushi.17-00019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Akio Ogata
- Tokyo Metropolitan Institute of Public Health
| | - Yukie Tada
- Tokyo Metropolitan Institute of Public Health
| | | | | | | | | | | | | | | | | | | | | | | | - Daisuke Watanabe
- Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
| | - Kei Ishihara
- Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
| | - Takashi Usami
- Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
| | - Satoru Kamei
- Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
| | - Yasuaki Kohno
- Health and Safety Division, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government
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25
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Kawai R, Abe T, Uemura N, Fukaya M, Saito T, Komori K, Yokoyama Y, Nagino M, Shinoda M, Shimizu Y. Feeding catheter gastrostomy with the round ligament of the liver prevents mechanical bowel obstruction after esophagectomy. Dis Esophagus 2017; 30:1-8. [PMID: 28475746 DOI: 10.1093/dote/dox009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/25/2017] [Indexed: 12/11/2022]
Abstract
Jejunostomy, which requires the fixation of the jejunum to the abdominal wall, is commonly used as an enteral feeding access after esophagectomy. However, this procedure sometimes causes severe complications, such as mechanical bowel obstruction. In 2009, we developed a modified approach to insert an enteral feeding tube through the reconstructed gastric tube using the round ligament of the liver. The aim of this study is to investigate the usefulness of this approach as compared to the approach through jejunostomy. Between January 2005 and March 2015, 420 patients with thoracic esophageal cancer underwent esophagectomy via thoracotomy and laparotomy. Of these, 214 underwent feeding jejunostomy (FJ group) and 206 patients underwent feeding via gastric tube with round ligament of the liver (FG group). Catheter-related complications, other postoperative complications, and mortality were compared between the two groups. The incidence of catheter site infection during catheterization in the FG group was significantly lower (n = 1/206, 0.5%) compared to the FJ group (n = 11/214, 5.1%) (P < 0.01). The postoperative bowel obstruction did not occur in the FG group, while it occurred in eight patients (3.7%) in the FJ group (P < 0.01). The incidences of other catheter-related and postoperative complications were similar between the two groups. Feeding catheter gastrostomy with the round ligament of the liver can be a useful enteral feeding access after esophagectomy, because the incidence rate of severe catheter-related complications, such as surgical site infection and mechanical obstruction tend to be lower with this technique compare to jejunostomy.
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Affiliation(s)
- R Kawai
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Abe
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - N Uemura
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - M Fukaya
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Saito
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - K Komori
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Y Yokoyama
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nagino
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Shinoda
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Y Shimizu
- Department of Gastroenterological Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
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26
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Mitani S, Kadowaki S, Oze I, Masuishi T, Narita Y, Taniguchi H, Ura T, Ando M, Tajika M, Makita C, Kodaira T, Uemura N, Abe T, Muro K. Chemoradiotherapy versus surgery for clinical stage I esophageal squamous cell carcinoma: A long-term comparison. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.63] [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: 11/14/2022] Open
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27
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Lee AH, Tan L', Hiramatsu N, Ishisaka A, Alfonso H, Tanaka A, Uemura N, Fujiwara Y, Takechi R. Plasma concentrations of coffee polyphenols and plasma biomarkers of diabetes risk in healthy Japanese women. Nutr Diabetes 2016; 6:e212. [PMID: 27270110 PMCID: PMC4931312 DOI: 10.1038/nutd.2016.19] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/13/2016] [Accepted: 04/27/2016] [Indexed: 01/29/2023] Open
Abstract
Coffee consumption has been reported to reduce the risk of type 2 diabetes in experimental and epidemiological studies. This anti-diabetic effect of coffee may be attributed to its high content in polyphenols especially caffeic acid and chlorogenic acid. However, the association between plasma coffee polyphenols and diabetic risks has never been investigated in the literature. In this study, fasting plasma samples were collected from 57 generally healthy females aged 38-73 (mean 52, s.d. 8) years recruited in Himeji, Japan. The concentrations of plasma coffee polyphenols were determined by liquid chromatography coupled with mass tandem spectrometer. Diabetes biomarkers in the plasma/serum samples were analysed by a commercial diagnostic laboratory. Statistical associations were assessed using Spearman's correlation coefficients. The results showed that plasma chlorogenic acid exhibited negative associations with fasting blood glucose, glycated hemoglobin and C-reactive protein, whereas plasma total coffee polyphenol and plasma caffeic acid were weakly associated with these biomarkers. Our preliminary data support previous findings that coffee polyphenols have anti-diabetic effects but further replications with large samples of both genders are recommended.
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Affiliation(s)
- A H Lee
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - L 'b Tan
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - N Hiramatsu
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - A Ishisaka
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - H Alfonso
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - A Tanaka
- Nutrition Clinic, Kagawa Nutrition University, Tokyo, Japan
| | - N Uemura
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - Y Fujiwara
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - R Takechi
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia.,Nutrition Clinic, Kagawa Nutrition University, Tokyo, Japan.,Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
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28
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Luo J, Imai H, Ohyama T, Hashimoto S, Hasunuma T, Inoue Y, Kotegawa T, Ohashi K, Uemura N. The Pharmacokinetic Exposure to Fexofenadine is Volume-Dependently Reduced in Healthy Subjects Following Oral Administration With Apple Juice. Clin Transl Sci 2016; 9:201-6. [PMID: 27197662 PMCID: PMC5351340 DOI: 10.1111/cts.12400] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 04/16/2016] [Indexed: 01/16/2023] Open
Abstract
Pharmacokinetic exposures to fexofenadine (FEX) are reduced by apple juice (AJ); however, the relationship between the AJ volume and the degree of AJ‐FEX interaction has not been understood. In this crossover study, 10 healthy subjects received single doses of FEX 60 mg with different volumes (150, 300, and 600 mL) of AJ or water (control). To identify an AJ volume lacking clinically meaningful interaction, we tested a hypothesis that the 90% confidence interval (CI) for geometric mean ratio (GMR) of FEX AUCAJ/AUCwater is contained within a biocomparability bound of 0.5–2.0, with at least one tested volume of AJ. GMR (90% CI) of AUCAJ 150mL/AUCwater, AUCAJ 300mL/AUCwater, and AUCAJ 600mL/AUCwater were 0.903 (0.752–1.085), 0.593 (0.494–0.712), and 0.385 (0.321–0.462), respectively. While a moderate to large AJ‐FEX interaction is caused by a larger volumes of AJ (e.g., 300 to 600 mL), the effect of a small volume (e.g., 150 mL) appears to be not meaningful.
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Affiliation(s)
- J Luo
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - H Imai
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Ohyama
- Department of Mathematics and Statistics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - S Hashimoto
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Hasunuma
- Clinical Pharmacology Center, Oita University Hospital, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - Y Inoue
- General Clinical Research Center (GCRC), Oita University Hospital, Japan
| | - T Kotegawa
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - K Ohashi
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan
| | - N Uemura
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine, Oita University, Japan.,Clinical Pharmacology Center, Oita University Hospital, Japan.,General Clinical Research Center (GCRC), Oita University Hospital, Japan
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29
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Niikura R, Nagata N, Shimbo T, Aoki T, Yamada A, Hirata Y, Sekine K, Okubo H, Watanabe K, Sakurai T, Yokoi C, Mizokami M, Yanase M, Akiyama J, Koike K, Uemura N. Natural history of bleeding risk in colonic diverticulosis patients: a long-term colonoscopy-based cohort study. Aliment Pharmacol Ther 2015; 41:888-94. [PMID: 25715746 DOI: 10.1111/apt.13148] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 10/22/2014] [Accepted: 02/11/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND The natural history of bleeding risk from colonic diverticulosis remains unclear. AIM To identify the incidence of bleeding in colonic diverticulosis patients and associated risk factors. METHODS A cohort of 1514 patients with colonoscopy-confirmed asymptomatic diverticulosis was selected between 2001 and 2013. Age, sex and location of colonic diverticulosis (right or left side, or bilateral) were assessed. The endpoint was a bleeding event, and data were censored at the time of last colonoscopy. The cumulative and overall incidences of bleeding were estimated using the Kaplan-Meier and person-years methods. The Cox proportional hazards model was used to estimate age- and sex-adjusted hazard ratios (aHRs). RESULTS The median follow-up period was 46 months. Bleeding events occurred in 35 patients, and the median time-to-event interval was 50 months. Kaplan-Meier analysis showed that the cumulative incidence of diverticular bleeding was 0.21% at 12 months, 2.2% at 60 months and 9.5% at 120 months. By the person-years method, the overall incidence rate of bleeding was 0.46 per 1000 patient-years. On multivariate analysis, age ≥70 (aHR. 3.7) and bilateral diverticulosis (aHR, 2.4) were significant risk factors for bleeding. CONCLUSIONS This long-term follow-up study demonstrated that the cumulative incidence of bleeding from diverticulosis was approximately 2% at 5 years and 10% at 10 years, and the overall incidence was 0.46 per 1000 patient-years. Bilateral diverticulosis increased the risk of bleeding.
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Affiliation(s)
- R Niikura
- Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan; Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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30
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Nakajima J, Takahashi M, Uemura N, Seto T, Fukaya H, Suzuki J, Yoshida M, Kusano M, Nakayama H, Zaitsu K, Ishii A, Moriyasu T, Nakae D. Identification of N,N-bis(1-pentylindol-3-yl-carboxy)naphthylamine (BiPICANA) found in an herbal blend product in the Tokyo metropolitan area and its cannabimimetic effects evaluated by in vitro [35S]GTPγS binding assays. Forensic Toxicol 2014. [DOI: 10.1007/s11419-014-0253-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Nomura M, Abe T, Kodaira T, Oze I, Komori A, Narita Y, Masuishi T, Taniguchi H, Kadowaki S, Takahari D, Ura T, Andoh M, Kawai R, Uemura N, Tomita N, Tachibana H, Tanaka T, Tajika M, Niwa Y, Muro K. Comparison of Surgery with Definitive Chemoradiotherapy for Potentially Resectable Esophageal Cancer: a Propensity-Score Analysis. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.18] [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: 11/13/2022] Open
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32
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Suzuki H, Matsuzaki J, Fukushima Y, Suzaki F, Kasugai K, Nishizawa T, Naito Y, Hayakawa T, Kamiya T, Andoh T, Yoshida H, Tokura Y, Nagata H, Kobayakawa M, Mori M, Kato K, Hosoda H, Takebayashi T, Miura S, Uemura N, Joh T, Hibi T, Tack J. Randomized clinical trial: rikkunshito in the treatment of functional dyspepsia--a multicenter, double-blind, randomized, placebo-controlled study. Neurogastroenterol Motil 2014; 26:950-61. [PMID: 24766295 DOI: 10.1111/nmo.12348] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/25/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Rikkunshito, a standardized Japanese herbal medicine, is thought to accelerate gastric emptying and relieve dyspepsia, although no large-scale, randomized, placebo-controlled trials of rikkunshito have been conducted. This study aimed to determine the efficacy and safety of rikkunshito for treating functional dyspepsia (FD). METHODS FD patients received 2.5 g rikkunshito or placebo three times a day for 8 weeks in this multicenter, randomized, placebo-controlled, parallel-group trial. The primary end point was the proportion of responders at 8 weeks after starting test drug, determined by global patient assessment (GPA). The improvement in four major dyspepsia symptoms severity scale was also evaluated. In addition, plasma ghrelin levels were investigated before and after treatment. KEY RESULTS Two hundred forty-seven patients were randomly assigned. In the eighth week, the rikkunshito group had more GPA responders (33.6%) than the placebo (23.8%), although this did not reach statistical significance (p = 0.09). Epigastric pain was significantly improved (p = 0.04) and postprandial fullness tended to improve (p = 0.06) in the rikkunshito group at week 8. Rikkunshito was relatively more effective among Helicobacter pylori-infected participants (rikkunshito: 40.0% vs placebo: 20.5%, p = 0.07), and seemed less effective among H. pylori-uninfected participants (rikkunshito: 29.3% vs placebo: 25.6%, p = 0.72). Among H. pylori-positive individuals, acyl ghrelin levels were improved just in rikkunshito group. There were no severe adverse events in both groups. CONCLUSIONS & INFERENCES Administration of rikkunshito for 8 weeks reduced dyspepsia, particularly symptoms of epigastric pain and postprandial fullness. (UMIN Clinical Trials Registry, Number UMIN000003954).
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Affiliation(s)
- H Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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33
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Asayama N, Nagata N, Shimbo T, Nishimura S, Igari T, Akiyama J, Ohmagari N, Hamada Y, Nishijima T, Yazaki H, Teruya K, Oka S, Uemura N. Relationship between clinical factors and severity of esophageal candidiasis according to Kodsi's classification. Dis Esophagus 2014; 27:214-9. [PMID: 23826847 DOI: 10.1111/dote.12102] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Severe Candida esophagitis (CE) may lead to development of strictures, hemorrhage, esophagotracheal fistula, and a consequent decrease in quality of life. Although the severity of CE has been classified based on macroscopic findings on endoscopy, the clinical significance remains unknown. The aim of the study was to elucidate the predictive clinical factors for endoscopic severity of CE. Patients who underwent upper endoscopy and answered questionnaires were prospectively enrolled. Smoking, alcohol, human immunodeficiency virus (HIV) infection, diabetes mellitus, chronic renal failure, liver cirrhosis, systemic steroids use, proton pump inhibitor use, H2 blocker use, and gastrointestinal (GI) symptoms were assessed on the same day of endoscopy. GI symptoms including epigastric pain, heartburn, reflux, hunger cramps, nausea, dysphagia, and odynophagia were assessed on a 7-point Likert scale. Endoscopic severity was classified as mild (Kodsi's grade I/II) or severe (grade III/IV). Of 1855 patients, 71 (3.8%) were diagnosed with CE (mild, n = 48; severe, n = 23). In the CE patients, 50.0% (24/48) in the mild group and 23.1% (6/23) in the severe group did not have any GI symptoms. In HIV-infected patients (n = 17), a significant correlation was found between endoscopic severity and declining CD4 cell count (Spearman's rho = -0.90; P < 0.01). Multivariate analysis revealed that GI symptoms (odds ratio [OR], 3.32) and HIV infection (OR, 3.81) were independently associated with severe CE. Patients in the severe group experienced more epigastric pain (P = 0.02), reflux symptoms (P = 0.04), dysphagia (P = 0.05), and odynophagia (P < 0.01) than those in the mild group. Of the GI symptoms, odynophagia was independently associated with severe CE (OR 9.62, P = 0.02). In conclusion, the prevalence of CE in adults who underwent endoscopy was 3.8%. Silent CE was found in both mild and severe cases. Endoscopic severity was associated with characteristic GI symptoms and comorbidity of HIV infection. A decline in immune function correlated with CE disease progression.
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Affiliation(s)
- N Asayama
- Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan
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34
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Uemura N, Tabunoki H, Suzuki T, Ishikawa K, Nojima Y, Katsuma S, Sato R, Satoh JI. Production of wild-type and mutant-type human DAP12 proteins by Bombyx mori nucleopolyhedrovirus vector. Biosci Biotechnol Biochem 2014; 78:71-4. [DOI: 10.1080/09168451.2014.877824] [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: 10/25/2022]
Abstract
Abstract
A Japanese patient with Nasu-Hakola disease was found to have a serine-to-asparagine (S39N) substitution in human DNAX-activation protein 12 (DAP12). To elucidate the functional abnormalities of mutant-type DAP12, we expressed wild-type and mutant-type recombinant DAP12 protein with Bombyx mori nucleopolyhedrovirus (BmNPV) vector, and successfully purified the respective proteins from the hemolymph of recombinant BmNPV infected B. mori larvae.
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Affiliation(s)
- Nozomi Uemura
- Department of Bioinformatics and Molecular Neuropathology, Meiji Pharmaceutical University, Tokyo, Japan
| | - Hiroko Tabunoki
- Faculty of Agriculture, Department of Biological Production, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Taiki Suzuki
- Department of Bioinformatics and Molecular Neuropathology, Meiji Pharmaceutical University, Tokyo, Japan
| | - Kazuhiro Ishikawa
- Department of Bioinformatics and Molecular Neuropathology, Meiji Pharmaceutical University, Tokyo, Japan
| | - Yosui Nojima
- Department of Bioinformatics and Molecular Neuropathology, Meiji Pharmaceutical University, Tokyo, Japan
| | - Susumu Katsuma
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryoichi Sato
- Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Jun-ichi Satoh
- Department of Bioinformatics and Molecular Neuropathology, Meiji Pharmaceutical University, Tokyo, Japan
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35
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Kamihara Y, Fujimi A, Kanisawa Y, Okuda T, Uemura N, Minami S, Doi T, Hashimoto A, Ishikawa K, Matsuno T. Diffuse Intrasinusoidal Liver Metastasis of Pancreatic Carcinoma Causing Fulminant Hepatic Failure. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.161] [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: 11/14/2022] Open
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Nagata N, Shimbo T, Akiyama J, Nakashima R, Niikura R, Nishimura S, Yada T, Watanabe K, Oka S, Uemura N. Predictive value of endoscopic findings in the diagnosis of active intestinal amebiasis. Endoscopy 2012; 44:425-8. [PMID: 22318340 DOI: 10.1055/s-0031-1291631] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Endoscopic diagnosis of amebic colitis can be difficult because its appearance may mimic other forms of colonic disease. The aim of this study was to identify predictive endoscopic findings for amebic colitis. Patients with suspected amebic colitis based on distinctive endoscopic findings such as aphthae or erosions, ulcers, exudates, or a bump, were included in the study. A total of 157 patients were selected, 50 of whom had amebic colitis. The sensitivity and specificity of endoscopic findings that were significantly associated with amebic colitis were: cecal lesions (80% and 54%), multiple number of lesions (96% and 29%), presence of aphthae or erosions (84% and 37%), and presence of exudate (88% and 74%). Multivariate analysis revealed that the best combination of findings to predict amebic colitis was the presence of cecal lesions, multiple lesions, and exudates, which corresponded to an area under the receiver operating characteristic curve of 0.89 (95% confidence interval 0.82-0.95).
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Affiliation(s)
- N Nagata
- Department of Gastroenterology and Hepatology, National Center for Global Health and Medicine, Tokyo, Japan.
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Abstract
AIM Colonic diverticular bleeding often recurs, but the risk factors remain unclear. Our aim was to identify risk factors for recurrence in patients with diverticular bleeding. METHOD Seventy-two hospitalized patients who were diagnosed with diverticular bleeding between 2004 and 2008 were analyzed. Rebleeding was considered as the main outcome measure, with the duration until recurrence identified from medical records. Potential risk factors for rebleeding, such as underlying pathologies, medication and smoking and drinking habits, were investigated from the medical records on initial admission. RESULTS Of the 72 patients, 19 had a diverticular disease on the right, 16 on the left side and 37 on both sides of the colon. Recurrence was identified in 27 (38%) patients at a median interval of 1535 days. The cumulative incidence of rebleeding at 6, 12 and 24 months was 15%, 20% and 33%. Multivariate analysis revealed nonsteroid anti-inflammatory drugs (NSAIDs) (hazard ratio (HR), 2.57; 95% confidence interval (CI), 0.89-7.46; P=0.08), antiplatelet drugs (HR, 2.39; 95% CI, 1.01-5.67; P=0.05) and hypertension (HR, 4.16; 95% CI, 1.22-14.2; P=0.02) to be risk factors for rebleeding. CONCLUSION Patients with colonic diverticular bleeding show high recurrence rates within a short period. Risk factors for recurrence have been identified as the use of NSAIDs or antiplatelet drugs and hypertension.
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Affiliation(s)
- R Niikura
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
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Taniyama K, Shimbo T, Iwase H, Tanaka S, Watanabe N, Uemura N. Evidence-based therapy according to the guideline for gastric ulcers is cost-effective in Japan. J Physiol Pharmacol 2011; 62:627-635. [PMID: 22314565] [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] [Received: 12/17/2010] [Accepted: 11/23/2011] [Indexed: 05/31/2023]
Abstract
Helicobacter pylori (H. pylori) infection is a major cause of gastric ulcers (GU) and eradication of the infection controls the ulcer with no requirement for maintenance therapy. In Japan, an evidence-based guideline (GL) was first published in 2003 (1(st) version) and then again in 2007 (2(nd) version) with a minor revision under support of the Japanese Ministry of Health, Labor and Welfare (GUGLJ). Adherence to its standards is high, estimated at 80%. GU patients aged 18 or older with active ulcers at the time of diagnosis by an endoscopic examination at National Hospital Organization (NHO) hospitals of Japan were enrolled between September 2004 and April 2005. Subjective and endoscopic outcome, medical treatments and medical costs during the following nine months were analyzed, retrospectively. As a result, 935 patients and 270 doctors in charge from 62 NHO hospitals were analyzed. Among H. pylori-positive GU patients, the endoscopic recurrence rate of 24 patients with failure of eradication was 29.2%, which was significantly higher than 8.8% of 194 patients with successful eradication. Successful eradication of H. pylori resulted in significantly lower endoscopic recurrence rates for GU patients either with or without administration of non-steroidal anti-inflammatory drugs (NSAID). GUGLJ adherence scores were significantly related to the specialty or knowledge on the GUGLJ of doctors in charge, and the total medical cost consumed. These results suggest that the therapy of GU along with an evidence-based GL is essential to implement cost-effective treatment and the GI experts or the doctors that understand the GUGLJ very well should perform it.
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Affiliation(s)
- Kiyomi Taniyama
- Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
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Kang YS, Cha JJ, Hyun YY, Lee MH, Song HK, Cha DR, Bang K, Jeong J, Shin JH, Kang JH, Yang J, Ahn C, Kim JH, Toledo K, Merino A, GonzaLez-Burdiel L, Perez-Saez MJ, Aguera M, Ramirez R, Del Castillo D, Aljama P, Kahveci A, Tugtepe H, Asicioglu E, Nalcaci S, Birdal G, Arikan H, Koc M, Tuglular S, Kaya H, Ozener C, Kocak G, Azak A, Huddam B, Astarci HM, Can M, Duranay M, Tayama Y, Hasegawa H, Takayanagi K, Matsuda A, Shimizu T, Asakura J, Iwashita T, Okazaki S, Hatano M, Kiba T, Ogawa T, Mitarai T, Sanchez JE, Nunez M, Gonzalez I, Fernandez-Vina A, Pelaez B, Quintana A, Rodriguez C, Park KA, Kim EJ, Choi SJ, Kim NR, Park MY, Kim JK, Hwang SD, Cotovio P, Rocha A, Carvalho MJ, Teixeira L, Mendonca D, Rodrigues A, Cabrita A, Ito M, Wu HY, Peng YS, Huang JW, Hu FC, Hung KY, Tsai TJ, Wu KD, Temiz G, Sahin G, Degirmenci N, Ozkurt S, Yalcin AU, Rufino M, Garcia C, Vega N, Macia M, Rodriguez A, Maceira B, Hernandez D, Lorenzo V, Levallois J, Nadeau-Fredette AC, Labbe AC, Laverdiere M, Ouimet D, Vallee M, Matsuda A, Katou H, Tayama Y, Iwanaga M, Ogawa T, Shimizu T, Asakura J, Noiri C, Kanouzawa K, Hasegawa H, Mitarai T, Karakan S, Sezer S, Ozdemir Acar N, Haberal M, Ueda A, Nagai K, Morimoto M, Hirayama A, Yoh K, Saito C, Yamagata K, Parikova A, Vlijm A, deGraaff M, Brabcova I, Viklicky O, Krediet R, Nagamine N, Katoh KI, Yoshitake O, Cho KH, Jung SY, Do JY, Park JW, Yoon KW, Hwang SD, Kim NR, Kim EJ, Chung CH, Park MY, Choi SJ, Kim JK, Mravljak M, Karas B, Pajek J, Pintar T, Benedik M, Gucek A, Tomo T, Kadota JI, Tsuchida K, Minakuchi J, Yamanaka M, Numata A, Masakane I, Fujimori A, Kawanishi H, Naito H, Bordignon J, Manonelles A, Andujar A, Gonzalez-Segura C, Gonzalez MT, Glavas-Boras S, Zlopasa G, Boras S, Smalcelj R, Slavicek J, Knezevic N, Puretic Z, Prasad N, Gupta A, Sinha A, Saxena A, Sharma RK, Kaul A, Ramos R, Gonzalez MT, Vera M, Garcia I, Barbosa F, Teixido J, Garcia C, Cuxart M, Gonzalez C, de la Cruz JJ, Fukuoka K, Sinozaki M, Kato N, Oba I, Harada K, Kanai H, Ota K, Do JY, Kang SW, Cho KH, Park JW, Shin KL, Kim YH, Yoon KW, Prasad N, Gupta A, Sinha A, Sharma RK, Kaul A, Saxena A, Schneider K, Huszar T, Bator B, Di Napoli A, Franco F, Salvatori MF, Di Lallo D, Guasticchi G, Hassan S, Kristal B, Khazim K, Hassan F, Hassan K, Korabecna M, Krizkova V, Kocova J, Tonar Z, Opatrna S, Gaiao S, Beco A, Oliveira A, Santos-Araujo C, Pestana M, Denizot A, Milliard B, Kahveci A, Asicioglu E, Arikan H, Tuglular S, Ozener C, Hsu BG, Lai YH, Wang CH, Fang TC, Yesil H, Paydas S, Balal M, Cinkir U, Sertdemir Y, Santos-Araujo C, Oliveira A, Beco A, Sousa J, Silva N, Santos D, Pestana M, Oliveira A, Beco A, Santos C, Pestana M, Vera M, Fontsere N, Maduell F, Arias M, Bergada E, Cases A, Campistol JM, Grzelak T, Czyzewska K, Mortazavi M, Seirafian S, Halabian M, Emami Naini A, Farajzadegan Z, Moinzade F, Golabchi K, Portoles J, Moreno F, Lopez-Sanchez P, Gomez M, Corchete E, del Peso G, Bajo MA, Rivera M, Arribas G, Ferreira AC, Fernandes V, Sousa J, Vila Lobos A, Nolasco F, Martino F, di Loreto P, Rodighiero MP, Crepaldi C, Ronco C, Asicioglu E, Kahveci A, Nalcaci S, Arikan H, Tuglular S, Ozener C, Cavallini M, Centi A, Broccoli ML, Rocca AR, Testorio M, Borzacca B, Pugliese F, Russo GE, Tokgoz B, Ucar C, Kocyigit I, Somdas MA, Unal A, Vural A, Sipahioglu MH, Oymak O, Utas C, Teixeira L, Rodrigues A, Carvalho MJ, Cabrita A, Mendonca D, Micha T, Takouli L, Karaitianou A, Koupari G, Trompouki S, Arvanitis D, Vlassopoulos D, Ferreira AC, Fernandes V, Vila Lobos A, Nolasco F, Kahveci A, Nalcaci S, Asicioglu E, Birdal G, Arikan H, Tuglular S, Ozener C, Carvalho C, Beco A, Oliveira A, Santos C, Pestana M, Hiramatsu M, Ishida M, Tonozuka Y, Mikami H, Yamanari T, Momoki N, Onishi A, Maruyama K, Ito M, Masakane I, Takahashi T, Chung SH, Han DC, Noh H, Jeon JS, Kwon SH, Lindholm B, Lee HB, Tekeli L, Inal S, Derici U, Celik N, Kiran G, Derin O, Durunay M, Erten Y, Cho JH, Do JY, Park SH, Kim CD, Choi JY, Ryu HM, Kim YL, Kawahara K, Ishihara Y, Iwadou H, Uemura N, Kinashi M, Oobayashi S, Pilcevic D, Tadic-Pilcevic J, Kovacevic Z, Maksic D, Paunic Z, Mitrovic M, Mijuskovic M, Petrovic M. Peritoneal dialysis. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.54] [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: 11/13/2022] Open
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Abstract
BACKGROUND AND STUDY AIMS Endoscopic submucosal dissection (ESD) aims to resect large neoplastic lesions en bloc, allowing for more precise histopathological analysis. The present retrospective study aimed to analyze the technical and clinical outcomes after ESD of colorectal tumors. PATIENTS AND METHODS ESD was performed for the treatment of 71 colorectal neoplasms in 70 patients (38 men, 32 women; mean age 63.4 years). Lesion size, procedure time, complications, and immediate and follow-up outcomes were evaluated. The results for these 71 lesions were compared with those for a group of 32 lesions treated by conventional piecemeal endoscopic mucosal resection (EMR) performed during the same period. RESULTS For the ESD-treated group of lesions, the average lesion size was 32.7 mm (range 13-80 mm), and the mean operating time was 61.1 minutes (range 7-164 minutes). One perforation occurred in the ESD group (1.4%) and this was treated conservatively with clipping. The majority of these lesions (n = 50) were laterally spreading tumors. Histological examination showed low-grade adenoma in 12 cases; high-grade intraepithelial neoplasia in 47 cases; and submucosally invasive cancer in 11 cases, of which four were sm1, and seven were sm2 or sm3 (these seven patients underwent surgery). The en bloc resection rate was 98.6%. For the 64 tumors that were treated by radical endoscopic resection, no tumor recurrence was found after a mean follow-up period of 12.2 months (range 3-34 months) and a mean of 2.1 follow-up endoscopies (range 1-4). This contrasted with the 6.3% recurrence rate in the 32 piecemeal EMR cases (mean tumor size 28.7 mm, range 20-60 mm). CONCLUSION In our hands, ESD is a safe and effective resection technique for large colorectal neoplasms. As experience with the technique increases, it might gradually replace piecemeal EMR in the majority of cases.
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Affiliation(s)
- Y Tamegai
- Department of Gastroenterology, International Medical Center of Japan, Tokyo, Japan.
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Ishikawa M, Nakagawa T, Nishioka M, Ogata S, Miyauchi T, Kashiwagi Y, Uemura N, Inoue S. Costs and benefits of laparoscopic cholecystectomy: abdominal wall lifting vs. pneumoperitoneum procedure. Hepatogastroenterology 2006; 53:497-500. [PMID: 16995448] [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: 05/11/2023]
Abstract
BACKGROUND/AIMS Gasless laparoscopic surgery using the abdominal wall lifting (AWL) method was first developed in Japan and has been used in various surgical fields. The AWL method allows the use of conventional reusable surgical instruments. The purpose of this study was to compare the cost-effectiveness of laparoscopic cholecystectomy (LSC) using the AWL method in relation to that using pneumoperitoneum (P) method. METHODOLOGY Retrospective analysis of 431 LSC procedures between 1991 and 2004 was performed. The two surgical groups consisted of consecutively operated patients with a diagnosis of cholecystolithiasis or gallbladder polyps. One group consisted of 224 LSC procedures performed using the P method from 1992 to 1998 and the other group comprised 207 LSC performed using the AWL method from 1998 to 2004. All instruments used in the P method were disposable, whereas trocars, scissors, dissectors, graspers and L-hook electrodes (excluding clips) used in the AWL method were reusable. Hospital expenses, length of hospital admission and complication rates were analyzed. RESULTS Mean hospital cost per case for LSC using the AWL method (dollars 6743) was 7% less expensive than that using the P method (dolars 7215). Costs of operative equipment contributed to the difference (mean dollars 912 per case) in total cost. Conversion to open cholecystectomy occurred in 6 cases (2.9%) using the AWL method and 7 cases (3.1%) using the P method. There were no significant differences in length of hospital admission or complication rates between the two groups. CONCLUSIONS LSC using AWL method was less expensive than that using P method. This is mainly due to the use of reusable instruments in the AWL method. If LSC is performed using the AWL method instead of using disposable equipment, considerable savings can be achieved without compromising patient safety.
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Affiliation(s)
- M Ishikawa
- Department of Surgery, National Kochi Hospital, Kochi, Japan.
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Harada S, Nozaki Y, Yagou Y, Hiraga Y, Gatanaga H, Uemura N, Kimura S, Oka S. A Woman Who Excreted a Tape-Like Substance. Clin Infect Dis 2006. [DOI: 10.1086/499965] [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: 11/03/2022] Open
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Nakajima H, Sugita T, Yokota T, Ishigaki T, Mogi Y, Araki N, Waragai K, Kimura N, Iwazawa T, Kuze A, Tanii J, Kawasaki H, Horikawa M, Togami T, Uemura N, Kobayashi H, Sasano Y. Characteristics and performance of the Improved Limb Atmospheric Spectrometer-II (ILAS-II) on board the ADEOS-II satellite. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006334] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Uemura N, Ohkusa T, Hamano K, Nakagome M, Hori H, Shimizu M, Matsuzaki M, Mochizuki S, Minamisawa S, Ishikawa Y. Down-regulation of sarcolipin mRNA expression in chronic atrial fibrillation. Eur J Clin Invest 2004; 34:723-30. [PMID: 15530144 DOI: 10.1111/j.1365-2362.2004.01422.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [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: 11/29/2022]
Abstract
BACKGROUND Abnormal intracellular Ca2+ homeostasis is an important modulator of chronic atrial fibrillation. Sarcolipin, a homologue of phospholamban, is specifically expressed in the atria, and may play an important role in modulating intracellular Ca2+ homeostasis in the atria. The aim of this study was to investigate the expression of sarcolipin mRNA in the atrial myocardium of patients with chronic atrial fibrillation. METHODS We analyzed the expression of sarcolipin, phospholamban, cardiac calsequestrin and sodium calcium exchanger mRNAs in the right atrial myocardium from nine patients with mitral valvular disease with atrial fibrillation (MVD/AF), nine patients with MVD who had normal sinus rhythm (MVD/NSR), and 10 control patients with normal sinus rhythm who received open heart surgery (controls). The expression of mRNA was measured using the ABI PRISM 7700 Sequence Detection System (Applied Biosystems, Foster City, CA). RESULTS Relative expression levels of sarcolipin mRNA were significantly lower in MVD/AF (0.60 +/- 0.11) than in either MVD/NSR (1.28 +/- 0.17, P < 0.01) or controls (1.10 +/- 0.10, P < 0.05). The expression levels of sarcolipin mRNA were significantly lower in the group with high values for right atrial pressure. The expression levels of phospholamban, cardiac calsequestrin and sodium calcium exchanger mRNAs were comparable among all three groups. CONCLUSIONS Chronic electrical and mechanical overload decreased the expression of sarcolipin mRNA in the right atrial myocardium in patients with chronic atrial fibrillation. Down-regulation of sarcolipin mRNA may be part of atrial fibrillation-induced atrial remodelling.
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Affiliation(s)
- N Uemura
- Department of Physiology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Watanabe H, Yamaguchi N, Kuwayama H, Sekine C, Uemura N, Kaise M, Nakamura T, Kubo M, Yoshida S, Haruma K, Inoue M, Shimatani T, Sanuki E, Mieno H, Kawanishi M, Nakazawa S, Tanaka T. Improvement in gastric histology following Helicobacter pylori eradication therapy in Japanese peptic ulcer patients. J Int Med Res 2004; 31:362-9. [PMID: 14587302 DOI: 10.1177/147323000303100502] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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: 12/19/2022] Open
Abstract
We aimed to determine if successful or failed eradication of Helicobacter pylori with triple therapy causes any difference in gastric mucosal histology. Japanese H. pylori-positive patients with a healed peptic ulcer received high (n = 112) or low (n = 113) doses of triple therapy (omeprazole, amoxicillin and clarithromycin) for 1 week. Biopsies from the greater curvature of the central antrum and upper corpus were taken 6 weeks and 30 weeks after treatment completion, and gastric mucosal histology compared between successful (n = 171) and failed (n = 34) eradication groups. Morphological variables of gastritis were graded according to the updated Sydney System. Successful eradication therapy was defined as improvement in inflammation, neutrophil activity and atrophy; failed eradication therapy as improvement in inflammation and neutrophil activity only. Gastric mucosal atrophy gradually improved (in addition to improvements in inflammation and neutrophil activity) with successful eradication of H. pylori infection.
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Affiliation(s)
- H Watanabe
- Department of Molecular Genetics, Division of Molecular and Diagnostic Pathology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
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Uemura N. Delayed disposition of cocaine in sweat patches and in skin blister: cocaine may migrate from plasma to sweat patches via interstitial fluid. Clin Pharmacol Ther 2004. [DOI: 10.1016/j.clpt.2003.11.163] [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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Manari A, Uemura N, Nath R, Harris D, Jones R, Mendelson J. Sustained 3-Day Intravenous Cocaine Exposure Decreases Appetite and Hunger But Does Not Alter Food Intake Patterns in Cocaine-Dependent Volunteers. Clin Pharmacol Ther 2003. [DOI: 10.1016/s0009-9236(03)90485-1] [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: 10/25/2022]
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Mendelson J, Foster E, Ryan E, Uemura N, Nath R, Jones R. The Cardiovascular Effects of D- and L-Methamphetamine. Clin Pharmacol Ther 2003. [DOI: 10.1016/s0009-9236(03)90486-3] [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: 11/25/2022]
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Mendelson JE, Boxenbaum H, Harris DS, Uemura N, Nath RP, Everhart ET, Jones RT. The Bioavailability of Intranasal and Smoked Methamphetamine. Clin Pharmacol Ther 2003. [DOI: 10.1016/s0009-9236(03)90689-8] [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: 10/25/2022]
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50
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Ishii Y, Nakamura K, Matsuki S, Uemura N, Muraguchi R, Nakagawa M, Nakano S, Nakatsuka K. Pharmacokinetic and Pharmacodynamic Differences between Ocular and Nasal Instillation of Carteolol on Intraocular Pressure and Heart Rate in Japanese Men with High CYP2D6 Activity. J Clin Pharmacol 2002. [DOI: 10.1177/009127002401102948] [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: 11/15/2022]
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