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Sato Y, Fujiwara S, Hata A, Kida Y, Masuda T, Amimoto H, Matsumoto H, Miyoshi K, Otsuka K, Tomii K. 1545P A multicenter prospective observational study of pre-existing autoantibodies in patients with small cell lung cancer treated with ICI. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1639] [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: 11/01/2022] Open
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Kida Y, Tokoro M, Kitasaka H, Yoshimura T, Fukunaga N, Asada Y. P-766 Birth outcomes in Anti-centromere antibody (ACA) -positive patients treated with ART. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Does the presence of the ACA have any effect on pregnancy and birth?
Summary answer
Presence of ACA did not have an impact on pregnancy and birth parameters measured.
What is known already
We have previously shown that patients with high levels of anti-centromere antibody (ACA), one of the anti-nuclear antibodies (ANA), frequently have dispersion of chromosomes in the cytoplasm. Additionally, we reported that it was characterized by a low oocyte maturation rate as observed at ovum pick up, high multiple pronuclear formation after fertilization and a low pregnancy rate after embryo transfer. Thus, the effect of ACA on fertility is clear, but the impact following pregnancy establishment has not yet been reported. Therefore, we followed up on birth outcomes in ACA-positive patients treated with ART.
Study design, size, duration
3379 patients who underwent ANA testing followed by embryo transfer between January 2014 and February 2020 and who gave birth including the results of single births with no abnormal or missing values for week and birth weight were analyzed. The subjects were classified into three groups: ANA-negative (without ACA or any other ANA), ACA-positive (with only ACA) and ANA-positive (with ANA but not ACA).
Participants/materials, setting, methods
We compared mean birth weight (full term), low weight birth infant (less than 2,500g) rate, sex ratio, congenital anomaly rate, preterm birth rate, cesarean section rate, and mean apgar score (AP) in the three groups. We treated “don't know” and “blank” for items other than week and birth weight as non-responses and missing values.
Main results and the role of chance
Of the 3379 cases for analysis, the group numbers were ANA-: 2465, ACA+: 21, ANA+: 893. The mean birth weights were 3099.6g, 3055.3g and 3088.5g respectively. In the 3 groups the rate of low birth weight infants were 8.7% (215/2465), 9.5% (2/21) and 9.2% (82/893), the sex ratio (male/female)-1.03 (1246/1212), 0.62 (8/13) and 0.93 (429/ 460), congenital anomaly rate 2.7% (67/2465), 4.8% (1/21), 3.2% (29/893), preterm birth rate 7.4% (86/2465), 4.8% (1/12), 6.7% (60/893), cesarean rate 40.0% (979/2448), 42.9% (9/21), 41.3% (367/888), and mean AP was 8.3, 8.2, and 8.3 respectively. There was no significant difference between the three groups in any of the measured items.
Limitations, reasons for caution
This study was conducted at a single institution, and only the results of those who responded to the birth survey questionnaire were analyzed. Because of the small number of patients in the ACA group, continued follow-up is considered necessary.
Wider implications of the findings
It was shown that ACA strongly affects maternal fertility, but seems to have no effect on birth parameters. However we will continue to follow up with further long-term prognostic studies.
Trial registration number
not applicable
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Affiliation(s)
- Y Kida
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
| | - M Tokoro
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
| | - H Kitasaka
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
| | - T Yoshimura
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
| | - N Fukunaga
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
| | - Y Asada
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine , Nagoya, Japan
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Takeda S, Fukunaga N, Sanami S, Tsuzuki Y, Kitasaka H, Takeda S, Watanabe H, Kida Y, Kondou F, Asada Y. P–156 Automatic pronuclear detection based on deep learning technology has clinical utility. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Does the performance of an automatic pronuclear detection system based on deep learning technology have clinical utility?
Summary answer
Output results for 2PN detection using the automatic system powered by deep learning technology has clinical utility.
What is known already
In order to establish a more objective embryo evaluation system, we have been developing an automatic pronuclear detection system that utilizes deep learning technology based on Time- Lapse (TL) images. We have previously reported that the accuracy of pronuclei detection was improved by introducing an analysis method using 11 slices in the Z axis. In this study, we evaluated the potential clinical practicality of the automatic pronuclear detection system.
Study design, size, duration
Embryos clinically evaluated between May 2018 and December 2019 by embryologists were chosen for this study. We prepared for analysis TL videos of 995 embryos that had been evaluated as having 0, 1, 2, and 3PN.
Participants/materials, setting, methods
Part1:We compared the outputs of the automatic pronuclear detection system with these embryologists(three junior embryologists (1a), three intermediate embryologists (1b),and three senior embryologists (1c)) who had judged the pronuclei number from TL videos from 40 embryos each having 0,1,2,and 3PN.
Part2:The automatic pronuclear detection system determined the pronuclei number from the TL videos of 955 embryos scored as either 1,2,and 3PN,(different from those used in Part1),and the detection rate for 2PN was calculated.
Main results and the role of chance
Part1: The sensitivities for embryologist groups 1a),1b),1c) and the automatic pronuclear detection system were 80.0%,100%,100%,100% for 2PN, 60.0%,83.3%,86.7%,100% for 0PN, 46.7%,80.0%,86.7%,10.0% for 1PN, and 73.3%,96.7%,96.7%,10.0% for 3PN.
Part2: The precision for 2PN by the automatic pronuclear detection system was 99%.
Limitations, reasons for caution
In order to further improve the performance of the automatic pronuclear detection system, further adjustment of the algorithm and more training images will be utilised.
Wider implications of the findings: The detection of 2PN by the automatic pronuclear detection system was highly reliable, and the performance of the system was comparable to that of embryologists. These first results are reassuring and support the clinical use of the system as a further aid for embryologists, in routine laboratory practice.
Trial registration number
‘not applicable’
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Affiliation(s)
- S Takeda
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - N Fukunaga
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - S Sanami
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - Y Tsuzuki
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - H Kitasaka
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - S Takeda
- Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - H Watanabe
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - Y Kida
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - F Kondou
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
| | - Y Asada
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Aichi, Japan
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Kida Y, Tokoro M, Kitasaka H, Yoshimura T, Fukunaga N, Asada Y. P–354 Analysis of pregnancy and miscarriage rates in anti-centromere antibodies (ACA)-positive patients treated with ART. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Do ACA have an effect on pregnancy and miscarriage rates of human embryos?
Summary answer
The present results suggest that in ACA-positive cases, the pregnancy rate per transfer was significantly lower, although the miscarriage rate was not affected.
What is known already
We have previously shown that patients with high levels of anti-centromere antibody (ACA), (one of the anti-nuclear antibodies (ANA)), frequently have dispersal of the female chromosomes in the cytoplasm. Additionally, we reported that the clinical outcome was characterized by a low oocyte maturation rate following ovum pick up and high multiple pronuclear formation rate after fertilization. However, the post-implantation course of embryos with ACA-positive cases has not yet been reported. Therefore, in this study, we analyzed the pregnancy and miscarriage rates in ACA-positive patients treated with Assisted Reproductive Technologies (ART).
Study design, size, duration
6581 patients who underwent embryo transfer after antinuclear antibody testing between January 2014 and February 2020 were included in the analysis.
Participants/materials, setting, methods
The subjects were classified into three groups: ANA-negative (without ACA or any other ANA), ACA-positive (with only ACA) and ANA-positive (with ANA but not ACA). The cycle in which the gestational sac was confirmed was considered a positive pregnancy. The pregnancy and miscarriage rates were compared among the groups using “Ryan Test” for statistical analysis.
Main results and the role of chance
Of the 6581 eligible cases, the incidence of antinuclear antibody were 71.3% (4695/6581; ANA-negative), 0.9% (61/6581; ACA-positive) and 27.7% (1825/6581; ANA-positive). The pregnancy rates based on the total number of embryo transfer cycles for each were ANA-negative: 31.5% (5283/16792), ACA-positive: 17.6% (41/233), and ANA-positive: 32.4% (1891/5833). The pregnancy rates were significantly lower in the ACA-positive group than in the other groups. The miscarriage rate was 29.4% (1553/5283) in ANA-negative, 31.7% (13/41) in ACA-positive, and 28.0% (529/1891) in ANA-positive, with no significant difference between the three groups.
Limitations, reasons for caution
Retrospective analysis
Wider implications of the findings: ACA-positive patients may benefit from a treatment strategy to increase the absolute number of oocytes by obtained in order to increase the chances of normal fertilization and attainment of implantation.
Trial registration number
none
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Affiliation(s)
- Y Kida
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
| | - M Tokoro
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
| | - H Kitasaka
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
| | - T Yoshimura
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
| | - N Fukunaga
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
| | - Y Asada
- Asada Ladies Clinic, Asada Institute for Reproductive Medicine, Nagoya, Japan
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Hosoi H, Nishikawa S, Kida Y, Kishi T, Murata S, Iwamoto M, Toyoda Y, Yamada Y, Ikeda T, Sonoki T. Susceptibility of patients receiving chemotherapy for haematological malignancies to scabies. J Hosp Infect 2020; 106:594-599. [PMID: 32866631 DOI: 10.1016/j.jhin.2020.08.021] [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: 05/23/2020] [Accepted: 08/24/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Scabies is a contagious dermatosis. The risk factors for its transmission remain unclear. A scabies outbreak, involving patients who were receiving chemotherapy for haematological malignancies, occurred at our hospital. METHODS The outbreak population was analysed to determine whether the incidence of scabies was higher among contact patients receiving chemotherapy for haematological malignancies. RESULTS A patient with crusted scabies was the index case, and 18 of 78 contact healthcare workers (HCWs) and 22 of 135 contact patients were diagnosed with classical scabies. Ten of 17 contact patients with haematological malignancies and 12 of 118 contact patients with other diseases were infected with scabies. The incidence rate was significantly higher among the patients with haematological malignancies (P<0.001). The patients with haematological malignancies had a significantly lower mean minimum neutrophil count than those with other diseases (1159/μL vs 3761/μL, P=0.0012). Most haematological patients did not require special nursing assistance, suggesting that the higher incidence of scabies among these patients resulted from their immunodeficiency rather than greater skin-to-skin contact with infected HCWs. CONCLUSION Our study suggests that patients receiving chemotherapy for haematological malignancies are more susceptible to scabies than patients with other diseases, and require stricter protection.
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Affiliation(s)
- H Hosoi
- Department of Internal Medicine, Kainan Municipal Medical Center, Wakayama, Japan; Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan.
| | - S Nishikawa
- Department of Nursing, Kainan Municipal Medical Center, Wakayama, Japan; Infection Control Team, Kainan Municipal Medical Center, Wakayama, Japan
| | - Y Kida
- Department of Internal Medicine, Kainan Municipal Medical Center, Wakayama, Japan
| | - T Kishi
- Department of Dermatology, Kainan Municipal Medical Center, Wakayama, Japan
| | - S Murata
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
| | - M Iwamoto
- Infection Control Team, Kainan Municipal Medical Center, Wakayama, Japan; Department of Pediatrics, Kainan Municipal Medical Center, Wakayama, Japan
| | - Y Toyoda
- Department of Internal Medicine, Kainan Municipal Medical Center, Wakayama, Japan
| | - Y Yamada
- Department of Internal Medicine, Kainan Municipal Medical Center, Wakayama, Japan
| | - T Ikeda
- Department of Internal Medicine, Kainan Municipal Medical Center, Wakayama, Japan
| | - T Sonoki
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
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Onozato D, Akagawa T, Kida Y, Ogawa I, Hashita T, Iwao T, Matsunaga T. Novel differentiation of human induced pluripotent stem cell-drived intestinal organoids (HiOs) for evaluation of intestinal fibrosis. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.655] [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: 10/28/2022]
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7
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Kida Y, Yamada S, Kawakita N, Yoshimura T, Fukunaga N, Asada Y. The effect of modification of the embryo culture environment on human embryo development. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yamada Y, Ishino H, Kibayashi A, Kida Y, Hidehira N, Komatsu K, Hazumi M, Sato N, Sakai K, Yamamori H, Hirayama F, Kohjiro S. Frequency-Domain Multiplexing Readout with a Self-Trigger System for Pulse Signals from Kinetic Inductance Detectors. J Low Temp Phys 2018; 193:518-524. [PMID: 30839748 PMCID: PMC6190614 DOI: 10.1007/s10909-018-1911-6] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 04/07/2018] [Indexed: 06/09/2023]
Abstract
We present the development of a frequency-domain multiplexing readout of kinetic inductance detectors (KIDs) for pulse signals with a self-trigger system. The KIDs consist of an array of superconducting resonators that have different resonant frequencies individually, allowing us to read out multiple channels in the frequency domain with a single wire using a microwave-frequency comb. The energy deposited to the resonators break Cooper pairs, changing the kinetic inductance and, hence, the amplitude and the phase of the probing microwaves. For some applications such as X-ray detections, the deposited energy is detected as a pulse signal shaped by the time constants of the quasiparticle lifetime, the resonator quality factor, and the ballistic phonon lifetime in the substrate, ranging from microseconds to milliseconds. A readout system commonly used converts the frequency-domain data to the time-domain data. For the short pulse signals, the data rate may exceed the data transfer bandwidth, as the short time constant pulses require us to have a high sampling rate. In order to overcome this circumstance, we have developed a KID readout system that contains a self-trigger system to extract relevant signal data and reduces the total data rate with a commercial off-the-shelf FPGA board. We have demonstrated that the system can read out pulse signals of 15 resonators simultaneously with about 10 Hz event rate by irradiating α particles from 241 Am to the silicon substrate on whose surface aluminum KID resonators are formed.
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Affiliation(s)
- Y. Yamada
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - H. Ishino
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - A. Kibayashi
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - Y. Kida
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - N. Hidehira
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - K. Komatsu
- Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama Japan
| | - M. Hazumi
- KEK, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801 Japan
| | - N. Sato
- KEK, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801 Japan
| | - K. Sakai
- NASA Goddard Space Flight Center, Greenbelt, MD 20771 USA
- CRESST II - University of Maryland, Baltimore County, MD 21250 USA
| | - H. Yamamori
- AIST, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560 Japan
| | - F. Hirayama
- AIST, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560 Japan
| | - S. Kohjiro
- AIST, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560 Japan
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Kimura S, Saito M, Kida Y, Seki A, Isaka Y, Marumo K. Effects of raloxifene and alendronate on non-enzymatic collagen cross-links and bone strength in ovariectomized rabbits in sequential treatments after daily human parathyroid hormone (1-34) administration. Osteoporos Int 2017; 28:1109-1119. [PMID: 27796444 DOI: 10.1007/s00198-016-3812-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 10/17/2016] [Indexed: 01/22/2023]
Abstract
UNLABELLED This study investigated the effects of raloxifene and alendronate to follow parathyroid hormone (PTH) on bone collagen and biomechanical properties in ovariectomized rabbits. Sequential treatments of raloxifene and alendronate after hPTH(1-34) treatment improved biomechanical properties with and without bone collagen improvement, respectively. INTRODUCTION The standard sequential treatment to follow human parathyroid hormone (hPTH) (1-34) therapy for osteoporosis has yet to be determined. The objective of this study was to compare the effects of raloxifene and alendronate treatments to follow daily hPTH(1-34) treatment on non-enzymatic collagen cross-links, bone mass, and bone strength in ovariectomized (OVX) rabbits. METHODS From 3 months after ovariectomy, seven month-old female New Zealand white rabbits were given either vehicle or hPTH(1-34) (8 μg/kg/day), once daily for 5 months. After hPTH(1-34) treatment, the hPTH(1-34)-treated animals were divided into two groups, and given raloxifene (10 mg/kg, daily) orally or alendronate (100 μg/kg, twice weekly) subcutaneously for 5 months. We evaluated bone mineral density (BMD), bone structural parameters, advanced glycation end product (AGE) content in collagen, and bone mechanical parameters including intrinsic parameters in the femur. RESULTS Raloxifene (hPTH/RLX) and alendronate (hPTH/ALN) to follow hPTH(1-34) increased cortical thickness, maximum load, and maximum stress and decreased endocortical surface in the diaphysis, in addition to increasing total BMD in the distal metaphysis. Decreased trabecular AGE, pentosidine, and homocysteine contents and increased toughness and breaking energy were noted with hPTH/RLX treatment only. With hPTH/ALN treatment, no effects on non-enzymatic collagen cross-link AGEs were noted although increases in stiffness and elastic modulus were observed. CONCLUSION These results suggest that sequential treatments with hPTH(1-34) and antiresorptive drugs (raloxifene and alendronate) have a beneficial effect on bone mass and biomechanical properties in OVX rabbits.
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Affiliation(s)
- S Kimura
- Medical Science, Medicines Development Unit Japan, Eli Lilly Japan KK, Sannomiya Plaza Building 7-1-5 Isogami-dori, Chuo-ku, Kobe, 651-0086, Japan.
| | - M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Y Kida
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - A Seki
- Hamri Co., Ltd., 2638-2, Osaki, Koga, Ibaraki, 306-0101, Japan
| | - Y Isaka
- Medical Science, Medicines Development Unit Japan, Eli Lilly Japan KK, Sannomiya Plaza Building 7-1-5 Isogami-dori, Chuo-ku, Kobe, 651-0086, Japan
| | - K Marumo
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
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Kabuto Y, Morihara T, Furukawa R, Kida Y, Sukenari T, Onishi O, Minami M, Arai Y, Fujiwara H, Kubo T. Arthroscopic decompression with indigo carmine for treating paralabral cysts in the shoulder. Orthop Traumatol Surg Res 2016; 102:1109-1111. [PMID: 27816608 DOI: 10.1016/j.otsr.2016.09.011] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 07/24/2016] [Accepted: 09/05/2016] [Indexed: 02/02/2023]
Abstract
Paralabral cysts in the shoulder are a relatively rare pathology. It is sometimes difficult to detect the location of a paralabral cyst in the shoulder using arthroscopy, and it can be difficult to confirm sufficient decompression by arthroscopy. We describe the case of a 64-year-old woman who underwent arthroscopic decompression for a paralabral cyst in the shoulder. Indigo carmine was injected into the cyst under ultrasonography guidance just before the operation. The leakage point of indigo carmine was detected using arthroscopy. Arthroscopic decompression was performed until the indigo carmine was completely discharged. Her shoulder pain, limited range of motion, and muscle weakness during abduction and external rotation improved postoperatively. Magnetic resonance imaging confirmed the disappearance of the cyst. Arthroscopic decompression using an ultrasonography-guided injection of indigo carmine is a useful treatment for a paralabral cyst in the shoulder.
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Affiliation(s)
- Y Kabuto
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Morihara
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - R Furukawa
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Kida
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Sukenari
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - O Onishi
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - M Minami
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Arai
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Fujiwara
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - T Kubo
- Department of Orthopedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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11
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Sakai Y, Qin L, Miura M, Masunaga K, Tanamachi C, Iwahashi J, Kida Y, Takasu O, Sakamoto T, Watanabe H. Successful infection control for a vancomycin-intermediate Staphylococcus aureus outbreak in an advanced emergency medical service centre. J Hosp Infect 2016; 92:385-91. [PMID: 26879881 DOI: 10.1016/j.jhin.2015.12.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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] [Received: 07/24/2015] [Accepted: 12/23/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND A vancomycin-intermediate Staphylococcus aureus (VISA) (vancomycin minimum inhibitory concentration: 4mg/L) outbreak occurred in an advanced emergency medical service centre [hereafter referred to as the intensive care unit (ICU)] between 2013 and 2014. AIM Our objective was to evaluate the infection control measures that were successful. METHODS Seventeen VISA strains were isolated from the sputum of 15 inpatients and the skin of two inpatients. Fourteen VISA strains were recognized as colonization. However, three VISA strains were isolated from the sputum of three inpatients with pneumonia. Environmental cultures were performed and VISA strains were detected in five of 65 sites. Pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) was performed on 21 VISA strains. FINDINGS Molecular typing including PFGE and MLST showed that the patterns of 19 VISA strains were identical and those of the other two VISA strains were possibly related. This meant that a horizontal transmission of VISA strains had occurred in the ICU. In August 2013, the infection control team began interventions. However, new inpatients with VISA strains continued to appear. Therefore, in October 2013, the ICU was partially closed in order to try to prevent further horizontal transmission, and existing inpatients with the VISA strain were isolated. Although new cases quickly dissipated after the partial closure, it took approximately five months to eradicate the VISA outbreak. CONCLUSION Our data suggest that despite the employment of various other infection control measures, partial closure of the ICU was essential in terminating this VISA outbreak.
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Affiliation(s)
- Y Sakai
- Department of Pharmacy, Kurume University Hospital, Kurume, Japan; Department of Infection Control and Prevention, Kurume University School of Medicine, Kurume, Japan; Division of Infection Control and Prevention, Kurume University Hospital, Kurume, Japan.
| | - L Qin
- Department of Infection Control and Prevention, Kurume University School of Medicine, Kurume, Japan
| | - M Miura
- Division of Infection Control and Prevention, Kurume University Hospital, Kurume, Japan
| | - K Masunaga
- Department of Infection Control and Prevention, Kurume University School of Medicine, Kurume, Japan; Division of Infection Control and Prevention, Kurume University Hospital, Kurume, Japan
| | - C Tanamachi
- Department of Clinical Laboratory Medicine, Kurume University Hospital, Kurume, Japan
| | - J Iwahashi
- Department of Infection Control and Prevention, Kurume University School of Medicine, Kurume, Japan
| | - Y Kida
- Division of Microbiology, Department of Infectious Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - O Takasu
- Department of Advanced Emergency Medical Service Center, Kurume University Hospital, Kurume, Japan
| | - T Sakamoto
- Department of Advanced Emergency Medical Service Center, Kurume University Hospital, Kurume, Japan
| | - H Watanabe
- Department of Infection Control and Prevention, Kurume University School of Medicine, Kurume, Japan; Division of Infection Control and Prevention, Kurume University Hospital, Kurume, Japan
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Kida Y, Taira J, Kuwano K. EprS, an autotransporter serine protease, plays an important role in various pathogenic phenotypes of Pseudomonas aeruginosa. Microbiology (Reading) 2015; 162:318-329. [PMID: 26678838 DOI: 10.1099/mic.0.000228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pseudomonas aeruginosa possesses an arsenal of both cell-associated (flagella, pili, alginate, etc.) and extracellular (exotoxin A, proteases, type III secretion effectors, etc.) virulence factors. Among them, secreted proteases that damage host tissues are considered to play an important role in the pathogenesis of P. aeruginosa infections. We previously reported that EprS, an autotransporter protease of P. aeruginosa, induces host inflammatory responses through protease-activated receptors. However, little is known about the role of EprS as a virulence factor of P. aeruginosa. In this study, to investigate whether EprS participates in the pathogenicity of P. aeruginosa, we characterized various pathogenic phenotypes of the wild-type PAO1 strain and its eprS-disrupted mutant. The growth assays demonstrated that the growth of the eprS mutant was somewhat lower than that of the wild-type strain in a minimal medium containing BSA as the sole carbon and nitrogen source. Thus, these results indicate that eprS would have a role in the growth of P. aeruginosa in the presence of limited nutrients, such as a medium containing proteinaceous materials as a sole nutrient source. Furthermore, disruption of eprS resulted in a decreased production of elastase, pigments, autoinducers and surfactants, and a reduction of swimming and swarming motilities. In addition, the eprS mutant exhibited a reduction in the ability to associate with A549 cells and an attenuation of virulence in leucopenic mice as compared with the wild-type strain. Collectively, these results suggest that EprS exerts pleiotropic effects on various pathogenic phenotypes of P. aeruginosa.
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Affiliation(s)
- Y Kida
- Division of Microbiology, Department of Infectious Medicine,Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011,Japan
| | - J Taira
- Department of Bioscience and Bioinformatics,Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka 820-8502,Japan
| | - K Kuwano
- Division of Microbiology, Department of Infectious Medicine,Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011,Japan
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Honda H, Morihara T, Arai Y, Horii M, Ito H, Furukawa R, Kida Y, Sukenari T, Ikoma K, Oda R, Yamada Y, Fujiwara H, Kubo T. Clinical application of radial magnetic resonance imaging for evaluation of rotator cuff tear. Orthop Traumatol Surg Res 2015; 101:715-9. [PMID: 26315347 DOI: 10.1016/j.otsr.2015.06.007] [Citation(s) in RCA: 9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 04/06/2015] [Accepted: 06/08/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND Magnetic resonance imaging is useful for evaluating the rotator cuff, but some tendinous insertions cannot be assessed using oblique sagittal, oblique coronal, and axial magnetic resonance (MR) images because of the presence of the partial volume effect. HYPOTHESIS The purpose of this study was to determine whether radial-slice MR images could reveal normal rotator cuff insertions and rotator cuff tears more clearly than conventional MR images. PATIENTS AND METHODS The study included 18 subjects with normal rotator cuffs and 30 with rotator cuff tears. MR images of rotator cuff insertions sliced into radial, oblique coronal, and axial sections were obtained. The extent to which normal rotator cuff insertions and rotator cuff tears were visualized in each of the three MR images was evaluated. RESULTS The top to posterior portions of the rotator cuff insertions from 0° to 120° could be visualized in the radial MR images. In comparison, the posterior portions of the rotator cuff insertions could not be visualized around 45° in both the oblique coronal and axial MR images. DISCUSSION These findings demonstrate that radial MR images are superior to the oblique coronal and axial MR images regarding their ability to accurately visualize rotator cuff insertions. Radial MR images also revealed greater detail around 45° in the posterior area of the rotator cuff tears than the oblique coronal and axial MR images. Radial MR images are particularly useful for visualizing clinically important posterosuperior rotator cuff tears. LEVEL OF EVIDENCE Level III - Diagnostic study.
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Affiliation(s)
- H Honda
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - T Morihara
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - Y Arai
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - M Horii
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - H Ito
- Department of radiology, Kajiicho medical imaging center, Kyoto, Japan
| | - R Furukawa
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - Y Kida
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - T Sukenari
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - K Ikoma
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - R Oda
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
| | - Y Yamada
- Laboratory of sports and health science, Kyoto Prefectural university of medicine, Kyoto, Japan
| | - H Fujiwara
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan.
| | - T Kubo
- Department of orthopaedics, graduate school of medical science, Kyoto Prefectural university of medicine, Kawaramachi Hirokoji, Kamigyo-ku, 602-8566 Kyoto, Japan
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Kimura Y, Kida Y, Matsushita Y, Yasaka Y, Ueno M, Takahashi K. Universality of Viscosity Dependence of Translational Diffusion Coefficients of Carbon Monoxide, Diphenylacetylene, and Diphenylcyclopropenone in Ionic Liquids under Various Conditions. J Phys Chem B 2015; 119:8096-103. [DOI: 10.1021/acs.jpcb.5b02898] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Y. Matsushita
- Institute
of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | | | | | - K. Takahashi
- Institute
of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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15
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Giga H, Otani T, Sadamori T, Une K, Kida Y, Ota K, Itai J, Yamaga S, Kusunoki S, Ohshimo S, Iwasaki Y, Hirohashi N, Tanigawa K. Video analysis of cardiopulmonary resuscitation performance of ambulance crews during transportation. Crit Care 2014. [PMCID: PMC4069991 DOI: 10.1186/cc13673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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17
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Otani T, Ohshimo S, Ota K, Kida Y, Inagawa T, Itai J, Yamaga S, Une K, Iwasaki Y, Hirohashi N, Kohno N, Tanigawa K. Prevention of pneumothorax using venovenous ECMO in acute respiratory distress syndrome with emphysematous/cystic changes in the lung. Crit Care 2014. [PMCID: PMC4069989 DOI: 10.1186/cc13524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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18
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Itai J, Tanabe Y, Nishida T, Inagawa T, Torikoshi Y, Kida Y, Tamura T, Ota K, Otani T, Sadamori T, Une K, Tsumura R, Iwasaki Y, Hirohashi N, Tanigawal K. Tracheal intubation for a difficult airway using Airway scope®, KingVision® and McGRATH®: a comparative manikin study of inexperienced personnel. Crit Care 2013. [PMCID: PMC3642516 DOI: 10.1186/cc12097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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19
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Kobayashi T, Kida Y. Vibrational dynamics resolved with sub-10-fs deep-ultraviolet pulses. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134105002] [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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20
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Miyachi S, Kobayashi T, Kida Y, Tanaka T. Endovascular embolization of cerebral AVMs prior to surgery or radiosurgery. J Clin Neurosci 2012; 5 Suppl:58-60. [PMID: 18639103 DOI: 10.1016/s0967-5868(98)90014-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/1996] [Accepted: 01/22/1997] [Indexed: 10/26/2022]
Abstract
We studied 18 patients with cerebral arteriovenous malformations (AVM) who underwent embolization prior to surgery or radiosurgery. Two patients were cured with total occlusion of the AVM by embolization alone. Successful size reduction of the nidus in the range of 60-99% was obtained in all the other patients. Twelve patients underwent the radiosurgery following the embolization, one of whom obtained a complete cure. The AVMs in four patients were totally removed after the embolization. Although the purpose of embolization of AVMs is to reduce AVM size and shunt flow, the strategy of the embolization should be adjusted according to the treatment that is to follow, i.e. radiosurgery or surgery. We believe that peripheral nidi must be embolized prior to the radiosurgery, while deep-sited feeders must be embolized along with main feeders prior to the surgery.
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Affiliation(s)
- S Miyachi
- Department of Neurosurgery, Nagoya Ekisaikai Hospital, Nagoya, Japan
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21
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Iwase H, Shimada M, Tsuzuki T, Ryuge N, Kida Y, Kato B, Esaki M, Tanaka Y, Urata N. A Phase II Trial of Definitive Chemoradiotherapy with S-1 and Cisplatin for Locally advanced Oesophageal Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33294-4] [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] Open
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22
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Uzu T, Kida Y, Yamauchi A, Kume S, Isshiki K, Araki SI, Koya D, Haneda M, Kashiwagi A, Maegawa H, Kikkawa R. The effects of blood pressure control levels on the renoprotection of type 2 diabetic patients without overt proteinuria. ACTA ACUST UNITED AC 2012; 6:124-31. [DOI: 10.1016/j.jash.2011.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 11/04/2011] [Accepted: 11/08/2011] [Indexed: 01/13/2023]
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23
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Ohshimo S, Ota K, Tamura T, Kida Y, Itai J, Suzuki K, Kanao K, Torikoshi Y, Koyama K, Otani T, Sadamori T, Une K, Tsumura R, Iwasaki Y, Hirohashi N, Tanigawa K. Prognostic impact of imported and newly-isolated methicillin-resistant Staphylococcus aureus in the ICU. Crit Care 2012. [PMCID: PMC3363459 DOI: 10.1186/cc10648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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24
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Saito M, Marumo K, Kida Y, Ushiku C, Kato S, Takao-Kawabata R, Kuroda T. Changes in the contents of enzymatic immature, mature, and non-enzymatic senescent cross-links of collagen after once-weekly treatment with human parathyroid hormone (1-34) for 18 months contribute to improvement of bone strength in ovariectomized monkeys. Osteoporos Int 2011; 22:2373-83. [PMID: 20959962 DOI: 10.1007/s00198-010-1454-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [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] [Received: 08/18/2010] [Accepted: 09/24/2010] [Indexed: 12/12/2022]
Abstract
UNLABELLED Improvements in total content of enzymatic cross-linking, the ratio of hydroxylysine-derived enzymatic cross-links, and non-enzymatic advanced glycation end product cross-link formation from once-weekly administration of hPTH(1-34) for 18 months in OVX cynomolgus monkeys contributed to the improvement of bone strength. INTRODUCTION Parathyroid hormone (PTH) is used for the treatment of osteoporosis. To elucidate the contribution of material properties to bone strength after once-weekly treatment with hPTH(1-34) in an ovariectomized (OVX) primate model, the content of collagen and enzymatic immature, mature, and non-enzymatic cross-links, collagen maturity, trabecular architecture, and mineralization in vertebrae were simultaneously estimated. METHODS Adult female cynomolgus monkeys were divided into four groups (n = 18-20 each) as follows: SHAM group, OVX group, and OVX monkeys given once-weekly subcutaneous injections of hPTH(1-34) either at 1.2 or 6.0 μg/kg (low- or high-PTH groups) for 18 months. The content of collagen, enzymatic and non-enzymatic cross-linking pentosidine, collagen maturity, trabecular architecture, mineralization, and cancellous bone strength of vertebrae were analyzed. RESULTS Low-PTH and high-hPTH treatments increased the content of enzymatic immature and mature cross-links, bone volume (BV/TV), and trabecular thickness, and decreased pentosidine, compared with the OVX group. Stepwise logistic regression analysis revealed that BV/TV, the content of total enzymatic cross-links, and calcium content independently affected ultimate load (model R (2) = 0.748, p < 0.001) and breaking energy (model R (2) = 0.702, p < 0.001). BV/TV was the most powerful and enzymatic cross-link content was the second powerful determinant of both ultimate load and breaking energy. The most powerful determinant of stiffness was the enzymatic cross-link content (model R (2) = 0.270, p < 0.001). CONCLUSION Once-weekly preventive administration of hPTH(1-34) increased the total contents of immature and mature enzymatic cross-links, which contributed significantly to vertebral cancellous bone strength.
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Affiliation(s)
- M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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25
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Otani T, Ohshimo S, Shokawa T, Nishioka K, Itai J, Sadamori T, Kida Y, Inagawa T, Torikoshi Y, Suzuki K, Ota K, Tamura T, Tsumura R, Iwasaki Y, Hirohashi N, Tanigawa K. A survey on laypersons' willingness in performing cardiopulmonary resuscitation. Crit Care 2011. [PMCID: PMC3066969 DOI: 10.1186/cc9715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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26
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Ohshimo S, Ota K, Tamura T, Kida Y, Itai J, Suzuki K, Inagawa T, Torikoshi Y, Otani T, Sadamori T, Tsumura R, Iwasaki Y, Hirohashi N, Tanigawa K. Prognostic impact of imported and newly-isolated methicillin-resistant Staphylococcus aureus in the ICU. Crit Care 2011. [PMCID: PMC3066907 DOI: 10.1186/cc9653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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27
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Saito M, Marumo K, Soshi S, Kida Y, Ushiku C, Shinohara A. Raloxifene ameliorates detrimental enzymatic and nonenzymatic collagen cross-links and bone strength in rabbits with hyperhomocysteinemia. Osteoporos Int 2010; 21:655-66. [PMID: 19484165 DOI: 10.1007/s00198-009-0980-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [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] [Received: 01/25/2009] [Accepted: 05/14/2009] [Indexed: 01/19/2023]
Abstract
UNLABELLED We demonstrate a reduction in enzymatic divalent immature and trivalent pyridinium cross-links and an increase in the nonenzymatic cross-link, pentosidine (Pen), in rabbits with methionine (Met)-induced hyperhomocysteinemia. Such detrimental cross-link formation in bone was ameliorated by raloxifene (RLX) treatment. INTRODUCTION Collagen cross-links are determinants of bone quality. Homocysteine (Hcys) interferes with collagen cross-linking. Because RLX is thought to ameliorate bone quality, we investigated whether RLX ameliorated hyperhomocysteinemia-induced cross-link abnormalities using a Met-rich diet rabbit model. METHODS We divided New Zealand white rabbits into six groups (n = 6 per group): baseline control, sham operation, sham + 1% Met diet, ovariectomy (OVX), 1% Met diet + OVX, OVX + RLX (10 mg/kg/day), and 1% Met diet + OVX + RLX. RLX was administered for 16 weeks. We measured the amount of enzymatic immature and mature pyridinium cross-links and the nonenzymatic cross-link, Pen, and correlated the cross-link content to bone strength. RESULTS Hcys levels were significantly higher in the Met diet groups than in the normal diet groups. Met-fed rabbits with or without OVX showed a significant reduction of enzymatic cross-links, whereas an increase in Pen was observed in Met-fed rabbits with OVX. The cross-link content of the RLX-treated Met-fed rabbits with OVX was restored to similar levels as the sham group, accompanied by an improvement of bone strength. CONCLUSION These results demonstrate that hyperhomocysteinemia reduced bone strength via a reduction of enzymatic cross-links and an increase of nonenzymatic cross-links. RLX may ameliorate hyperhomocysteinemia-induced detrimental cross-linking in rabbits with OVX and may improve bone strength via the amelioration of collagen cross-links.
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Affiliation(s)
- M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, Tokyo, Japan.
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Uzu T, Kida Y, Shirahashi N, Harada T, Yamauchi A, Nomura M, Isshiki K, Araki SI, Sugimoto T, Koya D, Haneda M, Kashiwagi A, Kikkawa R. Cerebral microvascular disease predicts renal failure in type 2 diabetes. J Am Soc Nephrol 2010; 21:520-6. [PMID: 20110380 DOI: 10.1681/asn.2009050558] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Abnormalities in small renal vessels may increase the risk of developing impaired renal function, but methods to assess these vessels are extremely limited. We hypothesized that the presence of small vessel disease in the brain, which manifests as silent cerebral infarction (SCI), may predict the progression of kidney disease in patients with type 2 diabetes. We recruited 608 patients with type 2 diabetes without apparent cerebrovascular or cardiovascular disease or overt nephropathy and followed them for a mean of 7.5 years. At baseline, 177 of 608 patients had SCI, diagnosed by cerebral magnetic resonance imaging. The risk for the primary outcome of ESRD or death was significantly higher for patients with SCI than for patients without SCI [hazard ratio, 2.44; 95% confidence interval (CI) 1.36 to 4.38]. The risk for the secondary renal end point of any dialysis or doubling of the serum creatinine concentration was also significantly higher for patients with SCI (hazard ratio, 4.79; 95% CI 2.72 to 8.46). The estimated GFR declined more in patients with SCI than in those without SCI; however, the presence of SCI did not increase the risk for progression of albuminuria. In conclusion, independent of microalbuminuria, cerebral microvascular disease predicted renal morbidity among patients with type 2 diabetes.
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Affiliation(s)
- Takashi Uzu
- Department of Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan.
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Iwashita S, Tsuchida M, Tsukuda M, Yamashita Y, Emi Y, Kida Y, Komori M, Kashiwayama Y, Imanaka T, Sakaguchi M. Multiple organelle-targeting signals in the N-terminal portion of peroxisomal membrane protein PMP70. J Biochem 2009; 147:581-90. [DOI: 10.1093/jb/mvp205] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Ueda H, Tanaka H, Kida Y, Fukuchi H, Ichinose M. A randomized study of arterial infusion chemotherapy for hepatocellular carcinoma: Low-dose 5-fluorouracil/cisplatin versus low-dose 5-fluorouracil/cisplatin/Interferon beta. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.15098] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
15098 Background: Recently, efficacy of intraarterial infusion chemotherapy for advanced hepatocellular carcinoma (HCC) have been improved by combination with interferon(IFN)-alpha and 5-fluorouracil (5-FU) or 5-FU and cisplatin (FP). However, there is no report about combination chemotherapy with 5-FU, cisplatin and IFNbeta. Therefore, we examined to evaluate the efficacy and safety of combination intraarterial infusion chemotherapy with IFN-beta, 5-FU and cisplatin in patients with advanced HCC in comparison with a chemotherapy using 5- FU and cisplatin. Methods: Twelve HCC patients in advanced stage were enrolled in the study after informed consent was performed. Patients with WHO performance status greater than 2, belonging to Child-Pugh class C, or with platelet less 80 x 109/l were not eligible. They were randomly assigned to FP group (n=6) and FP-IFN group (n=6). One cycle of both regimens lasted for 4 wk. 5-FU (500 mg/day) and cisplatin (10mg/day) were administered via the proper hepatic artery for 5 consecutive days per week for 3 wk. IFNbeta (1 x 106 units) was injected via the proper hepatic artery twice a week for 3 wk. Primary and secondary end points are efficacy and safety, respectively. The effect of combination chemotherapy was evaluated in each patient after one cycle based on the reduction of tumor volume. Adverse event was based on Common Terminology Criteria for Adverse Events (CTCAE) v3.0. Results: The reduction rates in the FP group and FPI group were 16.5% and 36.2%, respectively. The response rates in the FP group and FPI group were 16.7%(CR:n=0, PR:n=1) and 66.7%(CR:n=0, PR:n=4), respectively. The efficacy in FPI group was significantly higher than that in FP group. As for safety, any severe adverse event was not observed in this study although neutropenia and thrombocytopenia were more common in FPI group than in FP group. Conclusions: These data indicate that arterial infusion chemotherapy with 5-FU/cisplatin/IFNbeta may be a promising treatment modality for advanced HCC. No significant financial relationships to disclose.
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Affiliation(s)
- H. Ueda
- Wakayama Medical University, Wakayama city, Japan
| | - H. Tanaka
- Wakayama Medical University, Wakayama city, Japan
| | - Y. Kida
- Wakayama Medical University, Wakayama city, Japan
| | - H. Fukuchi
- Wakayama Medical University, Wakayama city, Japan
| | - M. Ichinose
- Wakayama Medical University, Wakayama city, Japan
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Kida Y, Sato T. Tubular changes in obstructed kidney of adult mice evaluated using immunohistochemistry for segment-specific marker. Histol Histopathol 2007; 22:291-303. [PMID: 17163403 DOI: 10.14670/hh-22.291] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The main focus of the present investigation is to examine obstructed kidneys due to unilateral ureteral obstruction (UUO) model in adult mice using segment-specific tubular marker and to confirm the detailed morphological evaluation of UUO that is a typical model for the tubulointerstitial fibrosis which is an endpoint outcome of chronic renal diseases. Adult mice were subjected to UUO, and kidneys were harvested 1, 3, 7 days after surgical operation. Expansion of interstitial space both in the cortex and the medulla was confirmed 3 days after UUO by HE- and azan-staining. Interstitial fibrosis developed especially around dilated tubules. Immunohistochemistry for segment-specific antibodies revealed that the proximal tubules and the descending limb of Henle's loop did not dilate until 7 days after UUO, whereas initial dilation of the ascending limb of Henle's loop appeared to occur one day after surgery. The segment from the distal tubules to the collecting ducts began dilating one day after surgery and afterward significantly dilated. The downstream segment of nephron was involved in dilating earlier than the upstream of nephron in obstructed kidney examined in the present study. Moreover, the tubules accompanying apoptosis of tubular epithelia significantly dilated compared with those without apoptotic tubular epithelia. From the above-mentioned findings, we conclude that tubular dilatation of distal segment (from the ascending limb of Henle's loop to the collecting ducts) of nephron develops tubular epithelial apoptosis caused by accumulated urine, which would link to tubular disappearance and its replacement with fibrous tissue in UUO kidney of adult mice.
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Affiliation(s)
- Y Kida
- Department of Anatomy II, School of Dental Medicine, Tsurumi University, Yokohama, Japan
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Kida Y. [Autonomic neuropathy in type-2 diabetes, lessons from Okamoto Diabetes Study]. Rinsho Shinkeigaku 2006; 46:871-3. [PMID: 17432205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Clinically important diabetic autonomic neuropathy includes constipation, diarrhea, neurogenic bladder, impotence, dry skin, arterio-venous shunt in the lower extremities, reduced heart rate variability with tachycardia, orthostatic hypotension, and dysautoregulation of the cerebral blood flow. To investigate the prevalence, clinical characteristics and risk factor for diabetic complications, prospective epidemiological study (Okamoto Diabetes Study) has been started since 1991. Autonomic neuropathy was judged from the results of RR interval variation (CV < or = 1.5) and/or orthostatic change of systolic blood pressure (deltaSBP > or = 30 mmHg). The prevalence of autonomic neuropathy was 28% in type-2 diabetes enrolled in the Okamoto Diabetes Study. Aging, duration of diabetes, higher systolic blood pressure and HbA1c levels were independent risk factors for autonomic neuropathy. Frequent association with macrovascular complications in the subjects with autonomic neuropathy resulted in poor prognosis, especially due to cardiovascular events. The 55 subjects (19% of the 286 subjects already died) had died suddenly. Cause of sudden death in these subjects is still unclear, but silent myocardial infarction due to autonomic neuropathy may be, at least in part, one of the major causes of unexpected sudden death in type-2 diabetes.
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Affiliation(s)
- Yasuo Kida
- Department of Diabetes, Daini-Okamoto General Hospital
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Tanaka H, Maeshima S, Shigekawa Y, Ueda H, Hamagami H, Kida Y, Ichinose M. Neuropsychological impairment and decreased regional cerebral blood flow by interferon treatment in patients with chronic hepatitis: a preliminary study. Clin Exp Med 2006; 6:124-8. [PMID: 17061061 DOI: 10.1007/s10238-006-0107-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Accepted: 08/21/2006] [Indexed: 11/27/2022]
Abstract
It is well known that interferon (IFN) has various side effects including neuropsychiatric complications such as depression. We examined the relationship between neuropsychological impairment and regional cerebral blood flow (CBF) in chronic hepatitis patients treated with and without IFN-alpha. Eight patients with chronic hepatitis participated in this study. Four patients were treated with IFN-alpha (IFN group) and 4 patients were not treated (control group). The entire IFN group and half of the control group were diagnosed with hepatitis C and the rests of the control group had hepatitis B. Neuropsychological tests were conducted. The Self-Rating Depression Scale and the State-Trait Anxiety Inventory were also completed by the subjects. In addition, cerebral single photon emission computed tomography (SPECT; 3DSRT) was performed in all patients. Neuropsychological tests and SPECT were performed in the IFN group 2 months after starting IFN treatment and in the control group 2 months after starting follow-up. A significant reduction of regional CBF in the IFN group was observed in two cerebral regions (lt-angular and lt-temporal region) (P < 0.05), which have reported associations with memory and language function. In addition, the Auditory-Verbal Learning Test (AVLT), a measure of memory function, showed a decreased tendency in the IFN group. A decrease of regional CBF by IFN treatment was shown, suggesting that a decrease of regional CBF may contribute to the neuropsychological impairment by IFN treatment.
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Affiliation(s)
- H Tanaka
- Third Department of Internal Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama City 641-0015, Japan.
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Tachibana H, Kawabata K, Kida Y, Takeda M, Oku T, Kuroda N, Kitano H. P36.9 Visual event-related potentials in Parkinson’s disease during a recognition memory task. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.620] [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: 11/28/2022]
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35
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Ueda H, Tanaka H, Kida Y, Hamagami H, Ichinose M. Administration of tegafur/uracil after transcatheter arterial embolization inhibit plasma vascular endothelial growth factor level and local recurrence of hepatocellular carcinoma. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4153] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- H. Ueda
- Wakayama Medcl Univ, Wakayama city, Japan
| | - H. Tanaka
- Wakayama Medcl Univ, Wakayama city, Japan
| | - Y. Kida
- Wakayama Medcl Univ, Wakayama city, Japan
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36
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Noack F, Steinkellner O, Tzankov P, Ritze HH, Herrmann J, Kida Y. Generation of sub-30 fs ultraviolet pulses by Raman induced phase modulation in nitrogen. Opt Express 2005; 13:2467-2474. [PMID: 19495139 DOI: 10.1364/opex.13.002467] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We demonstrate compression of ultrashort light pulses in the ultraviolet (UV) by impulsively excited molecular wave-packets in nitrogen filled in a 25 cm long hollow waveguide of 128 microm diameter. After compression with CaF2 prisms the pulse duration was determined by XFROG to be 23 fs with a time-bandwidth product of 0.50. The advantages of our technique are high efficiency and the possibility to use it also for pulses at wavelength shorter than 200 nm. The experimental observations are explained by a theoretical model.
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37
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Maeshima E, Minami Y, Sato M, Matsuda K, Uchiyama K, Goda M, Ueda H, Kida Y, Mune M. A case of systemic lupus erythematosus with giant hepatic cavernous hemangioma. Lupus 2005; 13:546-8. [PMID: 15352428 DOI: 10.1191/0961203303lu1040oa] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 39-year old woman with antiphospholipid antibody positive systemic lupus erythematosus (SLE) was admitted to our department because of high fever, liver dysfunction and high level of C-reactive protein. At hospitalization, there was no anemia or jaundice. A tumor was palpable in the epigastric region, and there was tenderness in this region, but no muscular defense. There were no findings which indicated disease activity of SLE. The result of abdominal ultrasonography showed that there was a giant tumor, which occupied the majority of the left lobule of the liver, and a nonuniform ultrasound image was observed inside the tumor. The result of dynamic computed tomography (CT) showed peripheral globular enhancement, and enhancement then extended to the tumor center with time. Consequently, the patient was diagnosed with multiple hepatic hemangiomas. After admission, anemia rapidly deteriorated, and platelet count tended to decline. Therefore, intratumor hemorrhage was suspected, and emergent angiography was performed. For hemostatic purposes, transcatheter arterial embolization (TAE) and extended left hepatic lobectomy were performed. In patients with autoimmune diseases such as SLE and antiphospholipid syndromes, when thrombocytopenia is observed, care should be paid to identifying its cause, considering thrombocytopenia may be induced by hemangioma, although these cases are extremely rare.
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Affiliation(s)
- E Maeshima
- Department of Health and Sport Management, Osaka University of Health and Sport Sciences, Osaka, Japan.
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38
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Kimura E, Hidaka K, Kida Y, Morisaki H, Shirai M, Araki K, Suzuki M, Yamamura KI, Morisaki T. Serine-arginine-rich nuclear protein Luc7l regulates myogenesis in mice. Gene 2005; 341:41-7. [PMID: 15474286 DOI: 10.1016/j.gene.2004.07.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2004] [Revised: 06/25/2004] [Accepted: 07/19/2004] [Indexed: 11/23/2022]
Abstract
Using a gene trap technique, we identified a murine homologue of the yeast LUC7-like gene (Luc7l), which is a serine-arginine-rich protein (SR protein) that localizes in the nucleus through its arginine-serine-rich domain (RS domain) at the C-terminus and shows a speckled distribution pattern. Although its transcripts are widely expressed in embryos and adults, they are rarely detected in adult skeletal muscle, and Luc7l expression was found to be negatively regulated during the course of development of limb skeletal muscle, as well as during in vitro differentiation of the myoblast cell lines Sol8 and C2C12. We also demonstrated that forced expression of Luc7l protein inhibited myogenesis in vitro. Based on our results, Luc7l is thought to play an important role in the regulation of muscle differentiation.
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MESH Headings
- Animals
- Blotting, Northern
- Blotting, Western
- COS Cells
- Cell Differentiation/genetics
- Cell Differentiation/physiology
- Cell Line
- Chlorocebus aethiops
- Down-Regulation/genetics
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Developmental
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- Male
- Mice
- Mice, Mutant Strains
- Microscopy, Fluorescence
- Muscle Development/genetics
- Muscle Development/physiology
- Muscle, Skeletal/embryology
- Muscle, Skeletal/growth & development
- Muscle, Skeletal/metabolism
- Myoblasts/cytology
- Myoblasts/metabolism
- Nuclear Proteins/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Transfection
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Affiliation(s)
- E Kimura
- Department of Bioscience, National Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan
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Takezawa M, Kida Y, Kida M, Saigenji K. Influence of endoscopic papillary balloon dilation and endoscopic sphincterotomy on sphincter of oddi function: a randomized controlled trial. Endoscopy 2004; 36:631-7. [PMID: 15243887 DOI: 10.1055/s-2004-814538] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [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: 01/07/2023]
Abstract
BACKGROUND AND STUDY AIM Endoscopic papillary balloon dilation (EPBD) is assumed to have a theoretical advantage over endoscopic sphincterotomy (EST) in preserving sphincter of Oddi function because it does not involve cutting the biliary sphincter. Although attempts have been made to study the influence of EPBD and EST on sphincter of Oddi function, there is little agreement on this issue. In this study we used a method different from those described in previous reports to clarify whether EPBD or EST preserves sphincter of Oddi function better. PATIENTS AND METHODS 200 patients with bile duct stones who met the eligibility criteria were randomly assigned to EPBD (n = 104) or an EST (n = 96) group. Sphincter of Oddi function was estimated by measurement of the activity of pancreatic enzymes in the common bile duct (CBD). Pure bile was collected immediately before EPBD or EST, at 1 week and at 1 year after the procedure. We also statistically investigated 14 factors other than EPBD or EST that might have the potential to affect sphincter of Oddi function. RESULTS There was no significant difference between the baseline characteristics of the EPBD and EST groups. A total of 91 patients (46 in the EPBD group and 45 in the EST group) remained in the trial. Pure bile was collected from the CBD of 86 patients (43 EPBD and 43 EST) 1 week after the procedure. CBD stones were extracted successfully in all cases. Before the procedure, there were no significant differences in the levels of the five pancreatic enzymes between the EPBD and EST groups. At 1 week after the procedure, in both groups, there were significant increases in the levels of the five pancreatic enzymes. At 1 year after the procedure a complete series of pancreatic enzyme analyses was done in 33 patients (12 EPBD and 21 EST). There was no significant difference between the levels of the five pancreatic enzymes immediately before and 1 year after EPBD and EST. When the pancreatic enzyme levels of the two groups were directly compared, there was no significant difference at 1 year after the procedure, but the EPBD group had significantly higher levels at 1 week following the procedure. CONCLUSION In this study it was found that in patients with CBD stones both EPBD and EST preserve sphincter of Oddi function.
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Affiliation(s)
- M Takezawa
- Department of Gastroenterology, Kitasato University East Hospital, 2-1-1 Asamizodai, Sagamihara, Kanagawa 228-8520, Japan
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Miyake H, Yasukawa H, Kida Y, Ohta K, Shibata Y, Motogaito A, Hiramatsu K, Ohuchi Y, Tadatomo K, Hamamura Y, Fukui K. High performance Schottky UV detectors (265–100 nm) using n-Al0.5Ga0.5N on AlN epitaxial layer. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pssa.200303487] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Abstract
BACKGROUND AND STUDY AIMS Gastric carcinoid tumors are a rare disease. Previously, total gastrectomy was regarded as the treatment of choice. However, differences in biological malignancy have recently led to the increased use of endoscopic mucosal resection (EMR) for treatment. We studied the outcome of EMR in patients with gastric carcinoids who were treated at our hospital and discuss the indications for endoscopic treatment. PATIENTS AND METHODS Between 1986 and 1999 we carried out gastric mucosal resection in five patients with gastric carcinoid tumors. The procedure used for EMR was either strip biopsy or endoscopic aspiration mucosectomy. RESULTS The carcinoid tumors measured 10 mm or less in four of the five patients. Two patients had type A gastritis, and all had hypergastrinemia. There was no evidence of recurrence during follow-up (range 6 - 66 months; mean 32.6 months). CONCLUSION EMR is useful in the management of type 1 gastric carcinoids as classified by Rindi (hypergastrinemia; tumor diameter of 10 mm or less).
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Affiliation(s)
- J Ichikawa
- Gastroenterology Division, Department of Internal Medicine, Kitasato University East Hospital, 2-1-1 Asamizo-dai, Sagamihara-city, Kanagawa-ken 228-8520, Japan.
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42
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43
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Kida Y. [Usefulness of MRI and CT for clinical diabetes]. Nihon Rinsho 2002; 60 Suppl 8:648-53. [PMID: 12355827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Yasuo Kida
- Department of Diabetes, Daini-Okamoto General Hospital
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44
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Kida Y, Sakaguchi M, Fukuda M, Mikoshiba K, Mihara K. Amino acid residues before the hydrophobic region which are critical for membrane translocation of the N-terminal domain of synaptotagmin II. FEBS Lett 2001; 507:341-5. [PMID: 11696368 DOI: 10.1016/s0014-5793(01)03000-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined the fine structure of the type I signal-anchor sequence of synaptotagmin II, which has a 60-residue N-terminal domain followed by a hydrophobic region (H-region), focusing on the hinge region between the N-terminal and the H-regions. It was found that the charged or highly polar residues support the translocation of the N-terminal domain through the endoplasmic reticulum membrane at specific positions in the hinge. The residue requirement correlated with the turn propensity scale for transmembranes. It is suggested that a certain conformation, likely helical hairpin, in the hinge is critical for N-terminal domain translocation.
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Affiliation(s)
- Y Kida
- Department of Molecular Biology, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
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Kida Y, Kuwano K, Zhang Y, Arai S. Acholeplasma laidlawii up-regulates granulysin gene expression via transcription factor activator protein-1 in a human monocytic cell line, THP-1. Immunology 2001; 104:324-32. [PMID: 11722647 PMCID: PMC1783303 DOI: 10.1046/j.1365-2567.2001.01310.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An antimicrobial protein granulysin is constitutively expressed in cytotoxic T lymphocytes (CTL) and natural killer (NK) cells. However, little is known about the precise regulatory mechanisms underlying granulysin gene expression. In this study, we examined the regulatory mechanisms underlying granulysin gene expression using a human monocytic cell line, THP-1, treated with Acholeplasma laidlawii. The level of granulysin mRNA expression in THP-1 cells was significantly augmented in response to stimulation with A. laidlawii. The transfection of reporter gene constructs into THP-1 cells indicated that DNA sequences between residues -329 and -239, relative to the transcriptional start site of the granulysin gene, are responsible for mediating gene induction. In addition, mutagenesis of a putative activator protein-1 (AP-1)-binding site between residues -277 and -271 in the granulysin promoter resulted in the reduction of granulysin promoter activity. Electrophoretic mobility shift assays (EMSA) demonstrated that nuclear extract prepared from A. laidlawii-treated THP-1 cells can generate specific binding to DNA oligonucleotides encompassing the AP-1-binding site, whereas unstimulated nuclear extract from the cells failed to do so. Furthermore, competition and supershift assays confirmed that A. laidlawii can induce the activation of AP-1. These results indicate that AP-1 dominantly participates in the regulation of inducible granulysin gene expression in THP-1 cells. Therefore, the finding of inducible granulysin gene expression by A. laidlawii suggests that inducible granulysin in macrophages may function as a protective weapon when microbial invasion occurs.
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Affiliation(s)
- Y Kida
- Department of Bacteriology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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46
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Abstract
Anthrax toxin lethal factor (LF) in combination with anthrax toxin protective antigen (PA) was endocytosed and translocated to the cytosol of mammalian cells. Residues 1-255 of anthrax toxin lethal factor (LFn) was fused to a cytotoxic T lymphocyte (CTL) epitope of an influenza virus. For processing the toxins, PA must be cleaved into a 63-kDa fragment (PA63) by furin, which is a subtilisin-like processing endo-protease expressed by many eukaryotic cells. To test the ability of cells treated with the LFn fusion protein plus PA to deliver the epitope, CTL assay was performed. Two types of cell lines were identified, one was able to deliver CTL epitope while the other failed to efficiently deliver the epitope. To further elucidate the differences between these cells, the role of furin in these cells was examined. Disruption of the furin gene reduced its ability to deliver the CTL epitope. Furin expression in cells capable of efficiently delivering CTL epitope was quantitatively higher than in cells unable to deliver the epitope. The results suggest that furin plays a critical role in delivery of the CTL epitope of LFn fusion protein.
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MESH Headings
- Animals
- Anthrax/immunology
- Anthrax Vaccines/chemistry
- Anthrax Vaccines/immunology
- Anthrax Vaccines/metabolism
- Antigens, Bacterial
- Antigens, Viral/genetics
- Antigens, Viral/immunology
- Bacillus anthracis/immunology
- Bacterial Toxins/chemistry
- Bacterial Toxins/genetics
- Bacterial Toxins/immunology
- Bacterial Toxins/metabolism
- Blotting, Western
- Cells, Cultured
- Chloroquine/pharmacology
- Cytotoxicity, Immunologic/drug effects
- Epitopes, T-Lymphocyte/genetics
- Epitopes, T-Lymphocyte/immunology
- Female
- Flow Cytometry
- Furin
- Gene Deletion
- Gene Expression
- Orthomyxoviridae/genetics
- Orthomyxoviridae/immunology
- Ovalbumin/immunology
- Peptide Fragments/chemistry
- Peptide Fragments/immunology
- Peptide Fragments/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Recombinant Fusion Proteins/chemistry
- Recombinant Fusion Proteins/metabolism
- Subtilisins/genetics
- Subtilisins/metabolism
- T-Lymphocytes, Cytotoxic/immunology
- Transfection
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Affiliation(s)
- Y Zhang
- Department of Microbiology, Kurume University School of Medicine, Fukuoka, Japan
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Abstract
A 48-year-old man was diagnosed with primary alveolar proteinosis (PAP). Whole lung lavage was performed for treatment, and the opacity on his chest X-ray completely disappeared. The value of cytokeratin 19 fragment (CYFRA) in the serum was high at the beginning, decreased after lung lavage, and became elevated again when the disease recurred 7 months later. As PAP is thought to be a problem of surfactant secreted from type II pneumocytes, and a cytokeratin is present in the alveolar epithelial tissue, the value of serum CYFRA might be related to the severity of PAP.
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Affiliation(s)
- Y Minakata
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine
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48
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Abstract
The role of gamma knife radiosurgery as an additional therapy after conventional treatments for pineal and related tumors was studied in 30 of 33 tumors with a mean follow-up of 23.3 months. Overall results showed that a complete response was obtained in 8 cases (26.7%) and the response rate was 73.3%. However, tumor progression was found in 8 cases (26.7%), of whom 7 (23.3%) died as a consequence. Germinoma and pineocytoma showed higher response and control rates (100%), and neither progression nor death occurred after gamma knife treatment. Germinoma with syncytiotrophoblastic giant cells (STGC) has been thought to have an intermediate prognosis. Two of our cases showed a partial response and another progression. Malignant germ cell tumor and pineoblastoma showed unfavorable responses and prognosis, with the response and progression rates both being 50%. Gamma knife radiosurgery was the initial treatment in three pineal tumor cases without a histological diagnosis, and one complete and two partial responses were obtained. Gamma knife radiosurgery is expected to be an effective and novel approach to pineal and related tumors, not only as an adjuvant but also as an initial treatment.
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Affiliation(s)
- T Kobayashi
- Department of Neurosurgery, Gamma Knife Center, Komaki City Hospital, Aichi pref., Japan.
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Kobayashi T, Kida Y, Kaneko T, Pastan I, Kobayashi K. Efficient ablation by immunotoxin-mediated cell targeting of the cell types that express human interleukin-2 receptor depending on the internal ribosome entry site. J Gene Med 2001; 3:505-10. [PMID: 11601764 DOI: 10.1002/jgm.208] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Immunotoxin-mediated cell targeting (IMCT) is a technique for conditional genetic ablation of specific cell types. IMCT provides a useful approach for generating animal models for human neurodegenerative disorders. The strategy of IMCT depends on the cytotoxic activity of antiTac-based recombinant immunotoxins that selectively target cells expressing the human interleukin-2 receptor alpha-subunit (IL-2Ralpha). Transgenic mice were generated that express the IL-2Ralpha under the control of an appropriate tissue-specific gene promoter, and they were treated with the recombinant immunotoxins resulting in the ablation of the target cell types. To restrict the expression of IL-2Ralpha transgene in the cell types of interest, it is useful to knock-in the IL-2Ralpha expression cassette into the specific marker gene locus with gene targeting. Moreover, the knock-in of the IL-2Ralpha cassette located downstream of an internal ribosome entry site (IRES) into the 3'-untranslated region of the marker gene enables IL-2Ralpha expression in the restricted cell types while preserving the intact marker gene expression. However, there is a possibility that IRES-dependent expression of the receptor may be less efficient than cap-dependent expression. METHODS AND RESULTS The efficiency of IRES-dependent IL-2Ralpha expression and immunotoxin responsiveness of the cells expressing the receptor were examined. The IL-2Ralpha gene fused to green fluorescence protein (GFP) (IL-2R/ GFP) was used as the target receptor. Embryonic stem cell clones were isolated that carry two types of bicistronic vectors in which the IL-2R/GFP fusion gene or the chloramphenicol acetyltransferase gene was connected upstream or downstream of IRES. The expression level of IL-2R/GFP protein in the cell clones was evaluated by GFP fluorescence detection and Western blot analysis. The IRES-dependent expression produced the same level of receptor protein as cap-dependent expression. The immunotoxin responsiveness of the cloned cells was evaluated by measuring the colony-forming efficiency in medium containing various amounts of a recombinant immunotoxin. The colony-forming efficiency of the cells expressing IL-2R/ GFP through IRES-dependent expression was reduced together with increasing immunotoxin concentration in a similar dose-dependent manner to the cells expressing the receptor through cap-dependent expression. CONCLUSIONS The present results indicate that it is possible to effectively use the IRES-dependent expression system for IMCT. The system permits expression of the target receptor in selective cell types by introducing the IRES-driven expression cassette into the 3'-untranslated region of the marker gene locus.
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Affiliation(s)
- T Kobayashi
- Department of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University School of Medicine, Japan
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50
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Tohno Y, Tohno S, Tateyama Y, Kida Y, Yasui T, Hashimoto M, Araki T. Visual demonstration of calcium accumulation in human arteries of upper and lower limbs. Biol Trace Elem Res 2001; 81:115-25. [PMID: 11554393 DOI: 10.1385/bter:81:2:115] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2000] [Accepted: 11/15/2000] [Indexed: 11/11/2022]
Abstract
To elucidate the calcium content of the arteries in the upper and lower limbs, the authors determined the calcium content of all the arteries in the upper and lower limbs continuously by microwave-induced plasma-atomic emission spectrometry. The subjects were an 87-yr-old man and a 72-yr-old woman. The calcium content was determined both in the arteries of the upper limbs continuously, such as the subclavian arteries and its distal arteries, and in the arteries of the lower limbs, such as the common iliac arteries and its distal arteries. The common finding that the higher accumulation of calcium occurred in the arteries of the lower limbs in comparison to the arteries of the upper limbs and extremely high accumulation of calcium occurred in the common, external, and internal iliac arteries was obtained in the two subjects. The calcium content of the arteries in the upper and lower limbs was visually demonstrated.
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Affiliation(s)
- Y Tohno
- Department of Anatomy, Nara Medical University, Kashihara, Japan
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