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Okamoto N, Seiyama A, Hori S, Takahashi S. Role of the left posterior middle temporal gyrus in shape recognition and its reconstruction during drawing: A study combining transcranial magnetic stimulation and functional near infrared spectroscopy. PLoS One 2024; 19:e0302375. [PMID: 38701103 PMCID: PMC11068196 DOI: 10.1371/journal.pone.0302375] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 04/03/2024] [Indexed: 05/05/2024] Open
Abstract
There are numerous reports of enhanced or emerged visual arts abilities in patients with semantic impairment. These reports led to the theory that a loss of function on the language side of the brain can result in changes of ability to draw and/or to paint. Further, the left posterior middle temporal gyrus (l-pMTG) has been revealed to contribute to the higher control semantic mechanisms with objects recognition and integration of visual information, within a widely distributed network of the left hemisphere. Nevertheless, the theory has not been fully studied in neural bases. The aim of this study is to examine role of the l-pMTG on shape recognition and its reconstruction within drawing behavior, by using a combining method of the repetitive transcranial magnetic stimulation (rTMS) and functional near-infrared spectroscopy (fNIRS). Eighteen healthy participants received a low frequency inhibitory rTMS to their l-pMTG during the drawing task of the Benton Visual Retention Test (BVRT). There was a significant decrease of the mean accuracy of reproductions in the Complex designs of the BVRT, compared to the Simple and Medium designs. The fNIRS data showed strong negative correlations with the results of the BVRT. Though our hypothesis had a contradiction that rTMS would have inhibited the brain activity in the stimulated site, the results suggest that shape recognition and its reconstruction such as the BVRT require neural activations of the l-TL as well as that of the l-pMTG.
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Affiliation(s)
- Nakako Okamoto
- Department of Nursing, Mental Health & Psychiatric Nursing, Kyoto Tachibana University, Kyoto, Japan
- Department of Media Art, Graduate School of Arts-Doctorial Course, Kyoto City University of Arts, Kyoto, Japan
| | - Akitoshi Seiyama
- Department of Creative Design & Data Science Center, Akita International University, Yuwa, Akita-City, Akita, Japan
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shota Hori
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Daikin Industries, Ltd., Osaka, Japan
| | - Satoru Takahashi
- Department of Media Art, Graduate School of Arts-Doctorial Course, Kyoto City University of Arts, Kyoto, Japan
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Sadakane Y, Kobayashi M, Sano M, Morimoto S, Hagino M. Quantification of serine residue stereoinversion in a short peptide by reversed-phase high-performance liquid chromatography: analysis of mechanisms promoting serine stereoinversion. ANAL SCI 2024; 40:925-934. [PMID: 38528254 DOI: 10.1007/s44211-024-00543-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/20/2024] [Indexed: 03/27/2024]
Abstract
Stereoinversion of Ser residues within proteins, which has been identified in long-lived proteins, influences protein function. To quantify the stereoinversion of Ser residues, we investigated the potential adaptation of our direct peptide analytical method originally established for analyzing the isomerization of asparaginyl/aspartyl residues. Peptide pairs containing L-Ser or D-Ser residues with lengths of four or five residues were synthesized. Separation conditions for these peptide pairs were systematically examined by precisely adjusting the pH of the elution solvent using reverse-phase high-performance liquid chromatography (HPLC). Optimal separation conditions were successfully developed for all peptide pairs, enabling the direct quantification of Ser residue stereoinversion through a single HPLC run. Subsequently, the degree of Ser stereoinversion within the model peptide, Gly-Ser-Gly-Tyr, was determined using the method established in this study. Surprisingly, the stereoinversion of Ser residues occurred only when the absolute configurations of Ser and Tyr residues of the peptide differed from each other, whereas no stereoinversion was observed when their absolute configurations were identical. The experiments using peptides similar to the model peptide reveal that both the N-terminal amino group and the hydroxyl group of the C-terminal Tyr residue are involved in the stereoinversion of the Ser residue. By applying a simple method to quantify the stereoinversion of Ser residues, valuable insights into the mechanisms governing these stereoinversions were obtained.
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Affiliation(s)
- Yutaka Sadakane
- School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, 513-8670, Japan.
| | - Mizuki Kobayashi
- School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, 513-8670, Japan
| | - Mitsuteru Sano
- School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, 513-8670, Japan
| | - Shota Morimoto
- School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, 513-8670, Japan
| | - Megumi Hagino
- School of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, 513-8670, Japan
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Hata A, Yanagawa M, Miyata T, Hiraoka Y, Shirae M, Ninomiya K, Doi S, Yamagata K, Yoshida Y, Kikuchi N, Ogawa R, Hatabu H, Tomiyama N. Association between interstitial lung abnormality and mortality in patients with esophageal cancer. Jpn J Radiol 2024:10.1007/s11604-024-01563-x. [PMID: 38658500 DOI: 10.1007/s11604-024-01563-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
PURPOSE To investigate the relationship between interstitial lung abnormalities (ILAs) and mortality in patients with esophageal cancer and the cause of mortality. MATERIALS AND METHODS This retrospective study investigated patients with esophageal cancer from January 2011 to December 2015. ILAs were visually scored on baseline CT using a 3-point scale (0 = non-ILA, 1 = indeterminate for ILA, and 2 = ILA). ILAs were classified into subcategories of non-subpleural, subpleural non-fibrotic, and subpleural fibrotic. Five-year overall survival (OS) was compared between patients with and without ILAs using the multivariable Cox proportional hazards model. Subgroup analyses were performed based on cancer stage and ILA subcategories. The prevalences of treatment complications and death due to esophageal cancer and pneumonia/respiratory failure were analyzed using Fisher's exact test. RESULTS A total of 478 patients with esophageal cancer (age, 66.8 years ± 8.6 [standard deviation]; 64 women) were evaluated in this study. Among them, 267 patients showed no ILAs, 125 patients were indeterminate for ILAs, and 86 patients showed ILAs. ILAs were a significant factor for shorter OS (hazard ratio [HR] = 1.68, 95% confidence interval [CI] 1.10-2.55, P = 0.016) in the multivariable Cox proportional hazards model adjusting for age, sex, smoking history, clinical stage, and histology. On subgroup analysis using patients with clinical stage IVB, the presence of ILAs was a significant factor (HR = 3.78, 95% CI 1.67-8.54, P = 0.001). Subpleural fibrotic ILAs were significantly associated with shorter OS (HR = 2.22, 95% CI 1.25-3.93, P = 0.006). There was no significant difference in treatment complications. Patients with ILAs showed a higher prevalence of death due to pneumonia/respiratory failure than those without ILAs (non-ILA, 2/95 [2%]; ILA, 5/39 [13%]; P = 0.022). The prevalence of death due to esophageal cancer was similar in patients with and without ILA (non-ILA, 82/95 [86%]; ILA 32/39 [82%]; P = 0.596). CONCLUSION ILAs were significantly associated with shorter survival in patients with esophageal cancer.
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Affiliation(s)
- Akinori Hata
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan.
| | - Masahiro Yanagawa
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Tomo Miyata
- Department of Radiology, Sakai City Medical Center, 1-1-1 Ebaraji-cho, Nishi-ku, Sakai, Osaka, 5938304, Japan
| | - Yu Hiraoka
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Motohiro Shirae
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Keisuke Ninomiya
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Shuhei Doi
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Kazuki Yamagata
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Yuriko Yoshida
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Noriko Kikuchi
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Ryo Ogawa
- Future Diagnostic Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
| | - Hiroto Hatabu
- Center for Pulmonary Functional Imaging, Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115, USA
| | - Noriyuki Tomiyama
- Department of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 5650871, Japan
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Hiraki T, Oishi T, Yoshikawa S, Honma K, Ohe S, Isei T, Kukita Y, Takai T, Shimada K, Takei Y, Goto K. Loss of p16 Immunoexpression and Deletions of CDKN2A in the Progression of Extramammary Paget Disease: An Immunohistochemical and Genetic Study of 24 Invasive/Metastatic Cases. Am J Dermatopathol 2024:00000372-990000000-00340. [PMID: 38648029 DOI: 10.1097/dad.0000000000002726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
ABSTRACT Information regarding the genetic alterations in extramammary Paget disease (EMPD) is scarce. This study investigated the significance of CDKN2A and MTAP alterations in EMPD progression using immunohistochemistry and panel DNA sequencing. In total, 24 invasive/metastatic EMPD cases were included in this study. The immunoexpression of p16 and MTAP in the primary in situ, primary invasive, and metastatic tumor components was evaluated. Panel DNA sequencing was performed for metastatic tumor components in 5 of the 24 cases. Immunoexpression of p16 in the in situ tumor component was at least partially preserved in all 19 tested cases (100%). By contrast, the invasive tumor component was diffusely or partially lost in 18 (81.8%) of 22 tested cases. Regarding the foci of lymph node metastasis, 13 (81.2%) of the 16 patients showed a significant loss of p16 expression. Loss of MTAP immunoexpression was observed less frequently compared with the loss of p16 expression. CDKN2A homozygous deletions were confirmed in all 5 tested cases by sequencing, whereas MTAP deletions were detected in only 2 cases. In conclusion, p16 expression loss and CDKN2A deletions can be frequently seen in invasive/metastatic cases of EMPD.
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Affiliation(s)
- Tsubasa Hiraki
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Takuma Oishi
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Shusuke Yoshikawa
- Department of Dermatology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Keiichiro Honma
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
| | - Shuichi Ohe
- Department of Dermatologic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Taiki Isei
- Department of Dermatologic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoji Kukita
- Laboratory of Genomic Pathology, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Toshihiro Takai
- Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
| | - Keiji Shimada
- Department of Pathology, Nara City Hospital, Nara, Japan
| | - Yusuke Takei
- Department of Clinical Laboratory, National Hospital Organization Himeji Medical Center, Himeji, Japan
| | - Keisuke Goto
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
- Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
- Department of Pathology, Itabashi Central Clinical Laboratory, Tokyo, Japan
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
- Department of Diagnostic Pathology, Chutoen General Medical Center, Kakegawa, Japan
- Department of Diagnostic Pathology, Osaka National Hospital, Osaka, Japan; and
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
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Miyake T, Minami K, Kazawa M, Tadokoro N, Tonai K, Fukushima S. Anterolateral papillary muscle suction causing low flow in a COVID-19 patient without medical history: a case report of central extracorporeal life support with left ventricular apex decompression. JA Clin Rep 2024; 10:22. [PMID: 38597982 PMCID: PMC11006632 DOI: 10.1186/s40981-024-00701-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Left ventricular (LV) decompression is an essential strategy for improving early survival in patients with refractory cardiogenic shock. Low pump flow in patients on extracorporeal life support (ECLS) with LV apex decompression is a life-threatening issue. However, identifying the underlying causes of low flow can be challenging. CASE PRESENTATION A 38-year-old woman with COVID-19-related fulminant myocarditis was treated with central ECLS with LV apex decompression. The pump flow in the intensive care unit (ICU) was intermittently low, and low flow alerts were frequent. The initial evaluation based on pressure monitor waveforms and transthoracic echocardiography failed to identify the underlying cause. Prompt bedside transesophageal echocardiography (TEE) revealed that the anterolateral papillary muscle was suctioned into the vent cannula of the LV apex during systole. The patient underwent a repeat sternal midline incision in the operating room, and the cannula at the LV apex was repositioned. There were no further suction events after the repositioning, and the patient was weaned from ECLS 12 days after admission to the ICU. The patient was discharged in a stable condition and without neurological deficits. CONCLUSIONS TEE is an important diagnostic tool to identify the underlying cause of low flow flow in patients undergoing ECLS with LV apex decompression.
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Affiliation(s)
- Tomoaki Miyake
- Department of Critical Care Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
- Department of Anesthesiology, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Kimito Minami
- Department of Critical Care Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan.
| | - Masahiro Kazawa
- Department of Critical Care Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Naoki Tadokoro
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Kohei Tonai
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
| | - Satsuki Fukushima
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan
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Yamazaki A, Takezawa A, Nagasaka K, Motoki K, Nishimura K, Nakano R, Nakazaki T. A simple method for measuring pollen germination rate using machine learning. Plant Reprod 2023; 36:355-364. [PMID: 37278944 DOI: 10.1007/s00497-023-00472-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 05/30/2023] [Indexed: 06/07/2023]
Abstract
The pollen germination rate decreases under various abiotic stresses, such as high-temperature stress, and it is one of the causes of inhibition of plant reproduction. Thus, measuring pollen germination rate is vital for understanding the reproductive ability of plants. However, measuring the pollen germination rate requires much labor when counting pollen. Therefore, we used the Yolov5 machine learning package in order to perform transfer learning and constructed a model that can detect germinated and non-germinated pollen separately. Pollen images of the chili pepper, Capsicum annuum, were used to create this model. Using images with a width of 640 pixels for training constructed a more accurate model than using images with a width of 320 pixels. This model could estimate the pollen germination rate of the F2 population of C. chinense previously studied with high accuracy. In addition, significantly associated gene regions previously detected in genome-wide association studies in this F2 population could again be detected using the pollen germination rate predicted by this model as a trait. Moreover, the model detected rose, tomato, radish, and strawberry pollen grains with similar accuracy to chili pepper. The pollen germination rate could be estimated even for plants other than chili pepper, probably because pollen images were similar among different plant species. We obtained a model that can identify genes related to pollen germination rate through genetic analyses in many plants.
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Affiliation(s)
- Akira Yamazaki
- Faculty of Agriculture, Kindai University, Nara, 631-8505, Japan.
| | - Ao Takezawa
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
| | - Kyoka Nagasaka
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
| | - Ko Motoki
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
| | - Kazusa Nishimura
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
| | - Ryohei Nakano
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
| | - Tetsuya Nakazaki
- Graduate School of Agriculture, Kyoto University, Kizugawa, 619-0218, Japan
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Oyagi S, Nakamura R, Katsuno T, Sogami T, Kawai Y, Kishimoto Y, Omori K. Local coordination of epithelial planar polarity in the maintenance and regeneration of the adult rat airway. Cell Tissue Res 2023; 394:163-175. [PMID: 37460682 DOI: 10.1007/s00441-023-03809-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/05/2023] [Indexed: 10/07/2023]
Abstract
The maintenance of planar polarity in airway multiciliated cells (MCCs) has been poorly characterized. We recently reported that the direction of ciliary beating in a surgically inverted tracheal segment remained inverted beyond the time required for the turnover of cells, without adjustment to global distal-to-proximal polarity. We hypothesized that the local maintenance of tissue-level polarity occurs via locally reproduced cells. To provide further insight regarding this hypothetical property, we performed allotransplantation of an inverted tracheal segment between wild-type (donor) and tdTomato-expressing (host) rats, with and without scratching the mucosa of the transplants. The origin of cells in the transplants was assessed using tdTomato-specific immunostaining. Ciliary movement and structures were observed by high-speed video and electron microscopy to analyze MCC orientations. Variabilities in the orientations of closely and distantly located MCCs were analyzed to evaluate the local- and broad-scale coordination of polarity, respectively. The epithelium was maintained by donor-derived cells in the non-scratched inverted transplant over 6 months, beyond one cycle of turnover. The inverted orientation of MCCs was also maintained throughout the non-scratched transplant. MCCs regenerated in the scratched transplant were derived from the host and exhibited diverse orientations across the transplant. However, the orientations of adjacent regenerated MCCs were often coordinated, indicating that airway MCCs can locally coordinate their orientations. A steady-state airway may maintain MCC orientation by locally reproducing MCCs via the local coordination of polarity. This local coordination enables the formation and maintenance of tissue-level polarity in small regions after mucosal injury.
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Affiliation(s)
- Seiji Oyagi
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Min-iren Chuo Hospital, Kyoto, Japan
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ryosuke Nakamura
- Department of Rehabilitation Medicine, New York University Grossman School of Medicine, New York, USA
| | - Tatsuya Katsuno
- Center of Anatomical, Pathological and Forensic Medical Researches, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tohru Sogami
- Department of Otolaryngology-Head and Neck Surgery, SOSEIKAI hospital, Kyoto, Japan
| | - Yoshitaka Kawai
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yo Kishimoto
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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Inoishi A, Nojima A, Tanaka M, Suyama M, Okada S, Sakaebe H. Superionic Conductivity in Sodium Zirconium Chloride-Based Compounds. Chemistry 2023; 29:e202301586. [PMID: 37311073 DOI: 10.1002/chem.202301586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/12/2023] [Accepted: 06/12/2023] [Indexed: 06/15/2023]
Abstract
All-solid-state sodium batteries are attracting intensive attention, and chloride-based solid electrolytes are promising candidates for use in such batteries because of their high chemical stability and low Young's modulus. Here, we report new superionic conductors based on polyanion-added chloride-based materials. Na0.67 Zr(SO4 )0.33 Cl4 showed a high ionic conductivity of 1.6 mS cm-1 at room temperature. X-ray diffraction analysis indicated that the highly conducting materials are mainly a mixture of an amorphous phase and Na2 ZrCl6 . The conductivity might be dominated by the electronegativity of the central atom of the polyanion. Electrochemical measurements reveal that Na0.67 Zr(SO4 )0.33 Cl4 is a sodium ionic conductor and is suitable for use as a solid electrolyte in all-solid-state sodium batteries.
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Affiliation(s)
- Atsushi Inoishi
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-Shi, 816-8580, Japan
| | - Akinobu Nojima
- Technology & Intellectual Property HQ, TDK Corporation, 462-1 Otai, Saku-Shi, 385-0009, Japan
| | - Maika Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-Shi, 816-8580, Japan
| | - Miyuki Suyama
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-Shi, 816-8580, Japan
| | - Shigeto Okada
- Transdisciplinary Research and Education Center for Green Technology, Kyushu University, 6-1 Kasuga-koen, Kasuga-Shi, 816-8580, Japan
| | - Hikari Sakaebe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-Shi, 816-8580, Japan
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Nakano D, Ishitsuka K, Deishi Y, Tsuchihashi R, Kinjo J, Nohara T, Okawa M. Screening of promising chemotherapeutic candidates from plants against human adult T-cell leukemia/lymphoma (VIII): six new withanolides from Physalis philadelphica. J Nat Med 2023; 77:688-698. [PMID: 37202653 DOI: 10.1007/s11418-023-01705-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 04/28/2023] [Indexed: 05/20/2023]
Abstract
Adult T-cell leukemia/lymphoma (ATL) is a malignancy of mature peripheral T-lymphocytes caused by human T-cell leukemia virus type I (HTLV-I). There are an estimated 5-20 million HTLV-1-infected individuals worldwide. Conventional chemotherapeutic regimens used against other malignant lymphomas have been administered to patients with ATL, but the therapeutic outcomes of acute and lymphoma-type ATL remain extremely poor. In the course of our screening program for novel chemotherapeutic candidate compounds from plants against two human T-cell leukemia virus I-infected T-cell lines (MT-1 and MT-2), we screened 16 extracts obtained from different parts of 7 Solanaceae plants. We identified that the extracts of Physalis pruinosa and P. philadelphica showed potent anti-proliferative activity in MT-1 and MT-2 cells. In our previous study, we have isolated withanolides from extract of aerial parts of P. pruinosa and examined their structure-activity relationships. In addition, we are also investigating further structure-activity relationships about other withanolides from Solanaceae plants (Withania somnifera, Withania coagulans, Physalis angulate, Nicandra physalodes, Petunia hybrida, and Solanum cilistum). In this study, we attempted to isolate their active compounds against MT-1 and MT-2 from extracts of P. philadelphica. We identified 13 withanolides, including six newly isolated compounds [24R, 25S-4β, 16β, 20R-trihydroxy-1-oxowitha-2-en-5β, 6 β -epoxy-22,26-olide (1), 4β, 7β,20R-trihydroxy-1-oxowitha-2-en-5β, 6β -epoxy-22,26-olide (2), 17β,20 S-dihydroxywithanone (3), 2,3-dihydro-3β-methoxy-23β-hydroxywithaphysacarpin (4), 3-O-(4-rhamnosyl)glucosyl-physalolactone B (5), and 17R, 20R, 22S, 23S, 24R, 25R-4β, 5α, 6β, 20β, 22α -tetrahydroxy-16β, 23-diepoxy-1-oxowitha-2-en-26, 23-olide (6)], from the extract and examined the structure-activity relationships. The 50% effective concentration of withaphysacarpin (compound 7) [MT-1: 0.10 µM and MT-2: 0.04 µM] was comparable to that of etoposide [MT-1: 0.08 µM and MT-2: 0.07 µM]. Therefore, withanolides might be promising candidates for the treatment of ATL.
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Affiliation(s)
- Daisuke Nakano
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Kenji Ishitsuka
- Division of Hematology and Immunology, Center for Chronic Viral Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Yurie Deishi
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Ryota Tsuchihashi
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Junei Kinjo
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Toshihiro Nohara
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-Ku, Kumamoto, 860-0082, Japan
| | - Masafumi Okawa
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan.
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Koya T, Kakino T, Sakamoto I, Nishizaki A, Ishikita A, Shiose A, Tsutsui H. Right parasternal approach is useful in an adult patient after arterial switch operation. J Echocardiogr 2023:10.1007/s12574-023-00613-z. [PMID: 37505368 DOI: 10.1007/s12574-023-00613-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 06/02/2023] [Accepted: 06/29/2023] [Indexed: 07/29/2023]
Affiliation(s)
- Tokiko Koya
- Department of Heart Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan.
| | - Takamori Kakino
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Ichiro Sakamoto
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akiko Nishizaki
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Ayako Ishikita
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Akira Shiose
- Department of Cardiovascular Surgery, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
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Inoue Y, Sato Y, Kashiwagi H, Nashimoto S, Sugawara M, Takekuma Y. Monitoring Salivary Concentrations of Tedizolid and Linezolid Using Rats. Eur J Drug Metab Pharmacokinet 2023:10.1007/s13318-023-00836-6. [PMID: 37368188 DOI: 10.1007/s13318-023-00836-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 06/28/2023]
Abstract
BACKGROUND AND OBJECTIVE Therapeutic drug monitoring (TDM) is an effective tool for the management of patients who are administered linezolid. The use of saliva for TDM has potential advantages over the use of plasma; however, only a few reports have compared drug concentrations in the saliva and plasma. Moreover, there are no reports on the salivary concentration of tedizolid, an oxazolidinone antibiotic similar to linezolid. In the present study, the concentrations of tedizolid and linezolid in rat submandibular saliva were compared with those measured in the plasma. METHODS Tedizolid (10 mg/kg, n = 6) and linezolid (12 mg/kg, n = 5) were administered via the rat tail vein. Submandibular saliva and plasma samples were collected for up to 8 h after the initiation of drug administration, and assayed for the concentrations of tedizolid and linezolid. RESULTS A strong correlation was found between the saliva and plasma concentrations of tedizolid (r = 0.964, p < 0.001) and linezolid (r = 0.936, p < 0.001). The value of tedizolid maximum concentration of drug (Cmax) was 0.99 ± 0.08 µg/mL in the saliva and 14.46 ± 1.71 µg/mL in the plasma. Meanwhile, the Cmax of linezolid was 8.01 ± 1.42 µg/mL in the saliva and 13.00 ± 1.90 µg/mL in the plasma. According to these results, the saliva/plasma concentration ratios of tedizolid and linezolid in rats were 0.0513 ± 0.0080 and 0.6341 ± 0.0339, respectively. CONCLUSIONS Considering the correlation between saliva and plasma concentrations of tedizolid and linezolid, as well as the characteristics of saliva, the results of this study suggest that saliva is a useful matrix for TDM.
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Affiliation(s)
- Yuki Inoue
- Graduate School of Life Science, Hokkaido University, Kita 10-jo, Nishi 8-chome, Kita-ku, Sapporo, 060-0810, Japan
| | - Yuki Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12-jo, Nishi 6-chome, Kita-ku, Sapporo, 060-0812, Japan
| | - Hitoshi Kashiwagi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12-jo, Nishi 6-chome, Kita-ku, Sapporo, 060-0812, Japan
| | - Shunsuke Nashimoto
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12-jo, Nishi 6-chome, Kita-ku, Sapporo, 060-0812, Japan
| | - Mitsuru Sugawara
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12-jo, Nishi 6-chome, Kita-ku, Sapporo, 060-0812, Japan
- Department of Pharmacy, Hokkaido University Hospital, Kita 14-jo, Nishi 5-chome, Kita-ku, Sapporo, 060-8648, Japan
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita 12-jo, Nishi 6-chome, Kita-ku, Sapporo, 060-0812, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Kita 14-jo, Nishi 5-chome, Kita-ku, Sapporo, 060-8648, Japan.
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12
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Saiga M, Nakagiri R, Mukai Y, Matsumoto H, Kimata Y. Trends and issues in clinical research on satisfaction and quality of life after mastectomy and breast reconstruction: a 5-year scoping review. Int J Clin Oncol 2023:10.1007/s10147-023-02347-5. [PMID: 37160493 DOI: 10.1007/s10147-023-02347-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/20/2023] [Indexed: 05/11/2023]
Abstract
Breast reconstruction (BR) aims to improve the satisfaction and quality of life (QOL) of breast cancer survivors. Clinical studies using patient-reported outcomes (PROs) can therefore provide relevant information to the patients and support decision-making. This scoping review was conducted to analyze recent trends in world regions, methods used, and factors investigated. The literature search was conducted in August 2022. Databases of PubMed, MEDLINE, and CINAHL were searched for relevant English-language studies published from 2017 to 2022. Studies involving women with breast cancer who underwent BR after mastectomy and investigated PROs after BR using BR-specific scales were included. Data on the country, publication year, study design, PRO measures (PROMs) used, time points of surveys, and research themes were collected. In total, 147 articles met the inclusion criteria. BREAST-Q was the most widely used, contributing to the increase in the number and diversification of studies in this area. Such research has been conducted mainly in North America and Europe and is still developing in Asia and other regions. The research themes involved a wide range of clinical and patient factors in addition to surgery, which could be influenced by research methods, time since surgery, and even cultural differences. Recent BR-specific PROMs have led to a worldwide development of research on factors that affect satisfaction and QOL after BR. PRO after BR may be influenced by local cultural and social features, and it would be necessary to accumulate data in each region to draw clinically useful conclusion.
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Affiliation(s)
- Miho Saiga
- Department of Plastic Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama City, Okayama, 700-8558, Japan.
| | - Ryoko Nakagiri
- Department of Plastic Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama City, Okayama, 700-8558, Japan
| | - Yuko Mukai
- Department of Plastic Surgery, Okayama Rosai Hospital, Okayama, Japan
| | - Hiroshi Matsumoto
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshihiro Kimata
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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13
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Oyama T, Sonoyama T, Kasai M, Sakai Y, Sunobe T. Bidirectional sex change and plasticity of gonadal phases in the goby Lubricogobius exiguus. J Fish Biol 2023; 102:1079-1087. [PMID: 36856167 DOI: 10.1111/jfb.15363] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/24/2023] [Indexed: 05/13/2023]
Abstract
Of the ca. 500 known hermaphroditic fish species, bidirectional sex change and simultaneous hermaphroditism are currently known in 69 and 57 species, respectively. Both bidirectional sex change and simultaneous hermaphroditism are predicted to evolve when mating opportunities are limited, such as in cases of low-density distribution and low mobility of individuals. However, the plasticity of sex is adaptive in obtaining mating opportunities, especially when there is mate loss. Pair-rearing experiments and histological observations of gonads of the goby Lubricogobius exiguus, which has low-density distributions and low mobility, showed bidirectional sex change. The male-role individuals in pairs had gonads in which only the testis was functional (male-phase), whereas the female-role individuals had two types of gonads: only the ovary was functional (female-phase) or both testis and ovary were functional (simultaneously hermaphroditic phase, SH-phase). In addition, single-rearing experiments showed SH-phase gonads in all individuals, and some cyclic spawning but no self-fertilization occurred. These results revealed that L. exiguus has an unusual sexual pattern among hermaphroditic fishes because they undergo bidirectional sex change and some maintain SH-phase gonads. These findings indicate that the low-density distribution and low mobility of L. exiguus in their natural habitat may have influenced the evolution of this unique sexual pattern.
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Affiliation(s)
- Takumi Oyama
- Laboratory of Fish Behavioral Ecology, Tateyama Station, Field Science Center, Tokyo University of Marine Science and Technology, Tateyama, Chiba, Japan
- Laboratory of Biology of Aquatic Resources, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | | | - Miku Kasai
- Shimonoseki Marine Science Museum, Shimonoseki, Yamaguchi, Japan
| | - Yoichi Sakai
- Laboratory of Biology of Aquatic Resources, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Tomoki Sunobe
- Laboratory of Fish Behavioral Ecology, Tateyama Station, Field Science Center, Tokyo University of Marine Science and Technology, Tateyama, Chiba, Japan
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14
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Numata Y, Sasaki S, Magara K, Takasawa A, Sugawara T, Ohara N, Akutsu N, Hasegawa T, Osanai M, Nakase H. Generalized crystal-storing histiocytosis with noncirrhotic portal hypertension: an autopsy case report. Clin J Gastroenterol 2023; 16:450-456. [PMID: 37014540 DOI: 10.1007/s12328-023-01782-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/06/2023] [Indexed: 04/05/2023]
Abstract
Crystal-storing histiocytosis (CSH) is a rare disease associated with the accumulation of histiocytes containing crystalline matter within their cytoplasm. Herein, we present the case of a female patient who was diagnosed with Tolosa-Hunt syndrome at 45 years of age and idiopathic retroperitoneal fibrosis when she was 48 years. She developed portal hypertension (PH), but did not present with cirrhosis; as such, the cause of PH was not identified. Her PH gradually worsened when she was 54 years, and at the age of 60 years, she died from an acute subdural hematoma. Autopsy revealed retroperitoneal fibrosis with severe fibrosis extending around the hepatic veins and into the porta hepatis. Histologically, the retroperitoneal tissue showed a dense infiltrate of eosinophilic histiocytes with crystal structures in the cytoplasm, which was pathologically diagnosed as CSH. Nodular regenerative hyperplasia was observed in the liver parenchyma, whereas cirrhosis was not. In the present case, CSH caused fibrosis, which was believed to be the cause of PH. In addition, we considered that nodular regenerative hyperplasia caused by the altered hepatic blood flow due to treatment of gastric varices contributed to worsening PH. Hence, CSH should be considered as an underlying disease in noncirrhotic portal hypertension.
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Affiliation(s)
- Yasunao Numata
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Minami 1-Jo Nishi 16-Chome Chuo-Ku, Sapporo, 060-8543, Japan
| | - Shigeru Sasaki
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Minami 1-Jo Nishi 16-Chome Chuo-Ku, Sapporo, 060-8543, Japan.
| | - Kazufumi Magara
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Akira Takasawa
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Taro Sugawara
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Naruki Ohara
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Minami 1-Jo Nishi 16-Chome Chuo-Ku, Sapporo, 060-8543, Japan
| | - Noriyuki Akutsu
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Minami 1-Jo Nishi 16-Chome Chuo-Ku, Sapporo, 060-8543, Japan
| | - Tadashi Hasegawa
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Makoto Osanai
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Minami 1-Jo Nishi 16-Chome Chuo-Ku, Sapporo, 060-8543, Japan
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15
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Zaizen Y, Okamoto M, Azuma K, Fukuoka J, Hozumi H, Sakamoto N, Suda T, Mukae H, Hoshino T. Enhanced immune complex formation in the lungs of patients with dermatomyositis. Respir Res 2023; 24:86. [PMID: 36934274 PMCID: PMC10024827 DOI: 10.1186/s12931-023-02362-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/08/2023] [Indexed: 03/20/2023] Open
Abstract
BACKGROUND Interstitial lung disease is frequently comorbid with dermatomyositis and has a poor prognosis, especially in patients with the anti-melanoma differentiation-associated gene 5 (MDA5) autoantibody. However, the pathogenesis of dermatomyositis-related interstitial lung disease remains unclear. METHODS We examined 18 and 19 patients with dermatomyositis-related interstitial lung disease and idiopathic pulmonary fibrosis (control), respectively. Lung tissues obtained from these patients were semi-quantitatively evaluated by immunohistochemical staining with in-house anti-human MDA5 monoclonal antibodies, as well as anti-human immunoglobulin (Ig) G, IgM, IgA, and complement component 3(C3) antibodies. We established human MDA5 transgenic mice and treated them with rabbit anti-human MDA5 polyclonal antibodies, and evaluated lung injury and Ig and C3 expression. RESULTS MDA5 was moderately or strongly expressed in the lungs of patients in both groups, with no significant differences between the groups. However, patients with dermatomyositis-related interstitial lung disease showed significantly stronger expression of C3 (p < 0.001), IgG (p < 0.001), and IgM (p = 0.001) in the lungs than control. Moreover, lung C3, but IgG, IgA, nor IgM expression was significantly stronger in MDA5 autoantibody-positive dermatomyositis-related interstitial lung disease (n = 9) than in MDA5 autoantibody-negative dermatomyositis-related interstitial lung disease (n = 9; p = 0.022). Treatment with anti-MDA5 antibodies induced lung injury in MDA5 transgenic mice, and strong immunoglobulin and C3 expression was observed in the lungs of the mice. CONCLUSION Strong immunoglobulin and C3 expression in the lungs involve lung injury related to dermatomyositis-related interstitial lung disease. Enhanced immune complex formation in the lungs may contribute to the poor prognosis of MDA5 autoantibody-positive dermatomyositis-related interstitial lung disease.
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Affiliation(s)
- Yoshiaki Zaizen
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Masaki Okamoto
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan
- Department of Respirology and Clinical Research Center, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyouhama, Chuo-Ku, Fukuoka, 810-8563, Japan
| | - Koichi Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan
| | - Junya Fukuoka
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Hironao Hozumi
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-Ku, Hamamatsu, Sizuoka, 431-3192, Japan
| | - Noriho Sakamoto
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 82-8501, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-Ku, Hamamatsu, Sizuoka, 431-3192, Japan
| | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 82-8501, Japan
| | - Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan.
- Cancer Innovation Laboratory (CIL), Center for Cancer Research (CCR), National Cancer Institute (NCI)-Frederick, 1050 Boyles St, MD, 21702-1201, Frederick, USA.
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Ishihara S, Usumi-Fujita R, Kasahara Y, Oishi S, Shibata K, Shimizu Y, Ishida Y, Kaneko S, Sugiura-Nakazato M, Tabata MJ, Hosomichi J, Taniyama Y, Ono T. Periostin splice variants affect craniofacial growth by influencing chondrocyte hypertrophy. J Bone Miner Metab 2023; 41:171-181. [PMID: 36859617 DOI: 10.1007/s00774-023-01409-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/30/2023] [Indexed: 03/03/2023]
Abstract
INTRODUCTION Periostin, an extracellular matrix protein, plays an important role in osteogenesis and is also known to activate several signals that contribute to chondrogenesis. The absence of periostin in periostin knockout mice leads to several disorders such as craniosynostosis and periostitis. There are several splice variants with different roles in heart disease and myocardial infarction. However, little is known about each variant's role in chondrogenesis, followed by bone formation. Therefore, the aim of this study is to investigate the role of several variants in chondrogenesis differentiation and bone formation in the craniofacial region. Periostin splice variants included a full-length variant (Control), a variant lacking exon 17 (ΔEx17), a variant lacking exon 21 (ΔEx21), and another variant lacking both exon 17 and 21 ***(ΔEx17&21). MATERIALS AND METHODS We used C56BL6/N mice (n = 6) for the wild type (Control)*** and the three variant type mice (n = 6 each) to identify the effect of each variant morphologically and histologically. Micro-computed tomography demonstrated a smaller craniofacial skeleton in ΔEx17s, ΔEx21s, and ΔEx17&21s compared to Controls, especially the mandibular bone. We, thus, focused on the mandibular condyle. RESULTS The most distinctive histological observation was that each defected mouse appeared to have more hypertrophic chondrocytes than Controls. Real-time PCR demonstrated the differences among the group. Moreover, the lack of exon 17 or exon 21 in periostin leads to inadequate chondrocyte differentiation and presents in a diminutive craniofacial skeleton. DISCUSSION Therefore, these findings suggested that each variant has a significant role in chondrocyte hypertrophy, leading to suppression of bone formation.
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Affiliation(s)
- Seiko Ishihara
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Risa Usumi-Fujita
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan.
| | - Yuki Kasahara
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Shuji Oishi
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Kana Shibata
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yasuhiro Shimizu
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Yuji Ishida
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Sawa Kaneko
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Makoto Sugiura-Nakazato
- Craniofacial Embryology and Oral Histology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Makoto J Tabata
- Craniofacial Embryology and Oral Histology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Jun Hosomichi
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
| | - Yoshiaki Taniyama
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takashi Ono
- Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Bunkyo-ku, Yushima 1-5-45, Tokyo, Japan
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Abe K, Phung-Duc T. Diffusion limit of a modified Erlang-B system with sensing time of secondary users. Ann Oper Res 2022; 331:1-22. [PMID: 36597500 PMCID: PMC9801361 DOI: 10.1007/s10479-022-05153-w] [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] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
We analyze a queueing model for cognitive wireless networks using the asymptotic-diffusion method (Moiseev et al. (2020); Nazarov et al. (2020)). Cognitive wireless is a technology that resolves radio spectrum shortages by allowing secondary users (SUs, unlicensed users) to occupy channels initially assigned to primary users (PUs, licensed users). SUs need to sense the channel availability upon arrival. After sensing, an SU can transmit if there is an idle channel; otherwise, the SU must continue sensing. We consider the situation where SUs may be interrupted by the arrivals of PUs when all channels are occupied. We derive a diffusion limit for the queueing model when the SUs' mean sensing time tends to infinity. The diffusion limit leads to an approximate probability distribution of the number of sensing SUs. Finally, we derive a necessary stability condition which turns out to be consistent with the sufficient condition obtained in previous research.
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Affiliation(s)
- Kazuma Abe
- Graduate School of Science and Technology, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, Ibaraki Japan
| | - Tuan Phung-Duc
- Institute of Systems and Information Engineering, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba, Ibaraki Japan
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Yamamoto T, Katsuta Y, Sato K, Tsukita Y, Umezawa R, Takahashi N, Suzuki Y, Takeda K, Kishida K, Omata S, Miyauchi E, Saito R, Kadoya N, Jingu K. Longitudinal analyses and predictive factors of radiation-induced lung toxicity-related parameters after stereotactic radiotherapy for lung cancer. PLoS One 2022; 17:e0278707. [PMID: 36459528 PMCID: PMC9718403 DOI: 10.1371/journal.pone.0278707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/21/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND PURPOSE The purpose of this prospective study was to investigate changes in longitudinal parameters after stereotactic radiotherapy for lung cancer and to identify possible pretreatment factors related to radiation-induced lung toxicity and the decline in pulmonary function after radiotherapy. MATERIALS AND METHODS Protocol-specified examinations, including 4-D CT, laboratory tests, pulmonary function tests (PFTs) and body composition measurements, were performed before SRT and at 1 month, 4 months and 12 months after stereotactic radiotherapy. Longitudinal differences were tested by using repeated-measures analysis of variance. Correlations were examined by using the Pearson product-moment correlation coefficient (r). RESULTS Sixteen patients were analyzed in this study. During a median follow-up period of 26.6 months, grade 1 and 2 lung toxicity occurred in 11 patients and 1 patient, respectively. The mean Hounsfield units (HU) and standard deviation (SD) of the whole lung, as well as sialylated carbohydrate antigen KL-6 (KL-6) and surfactant protein-D (SP-D), peaked at 4 months after radiotherapy (p = 0.11, p<0.01, p = 0.04 and p<0.01, respectively). At 4 months, lung V20 Gy (%) and V40 Gy (%) were correlated with changes in SP-D, whereas changes in the mean HU of the lung were related to body mass index and lean body mass index (r = 0.54, p = 0.02; r = 0.57, p = 0.01; r = 0.69, p<0.01; and r = 0.69, p<0.01, respectively). The parameters of PFTs gradually declined over time. When regarding the change in PFTs from pretreatment to 12 months, lung V5 Gy (cc) showed significant correlations with diffusion capacity for carbon monoxide (DLCO), DLCO/alveolar volume and the relative change in DLCO (r = -0.72, p<0.01; r = -0.73, p<0.01; and r = -0.63, p = 0.01, respectively). CONCLUSIONS The results indicated that some parameters peaked at 4 months, but PFTs were the lowest at 12 months. Significant correlations between lung V5 Gy (cc) and changes in DLCO and DLCO/alveolar volume were observed.
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Affiliation(s)
- Takaya Yamamoto
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
- * E-mail:
| | - Yoshiyuki Katsuta
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kiyokazu Sato
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoko Tsukita
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Rei Umezawa
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Noriyoshi Takahashi
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yu Suzuki
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuya Takeda
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keita Kishida
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - So Omata
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Eisaku Miyauchi
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryota Saito
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Noriyuki Kadoya
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keiichi Jingu
- Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
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19
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Takiguchi S, Tomita Y, Uehara S, Tateishi K, Yamamoto N, Nakamura M. Immunological imprint on peripheral blood in kidney transplant recipients after two doses of SARS-CoV-2 mRNA vaccination in Japan. Front Med (Lausanne) 2022; 9:999374. [PMID: 36250073 PMCID: PMC9553995 DOI: 10.3389/fmed.2022.999374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
The immunological imprint after two doses of severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2) mRNA vaccination for patients after kidney transplantation (KTx) remain unclear. This study included KTx recipients and volunteer healthy controls (HCs) who received two doses of SARS-CoV-2 mRNA vaccine (Pfizer BioNTech) from January 2021 to December 2021. We analyzed safety within 21 days after each vaccination dose and compared the immune response in peripheral blood mononuclear cells (PBMCs) between the two groups. No graft rejection was observed throughout this study. Adverse events were generally observed within 5 days. The KTx group exhibited a significantly lower degree of symptoms between doses 1 and 2 (P < 0.001). Increases in activated subsets of T and B cells expressing human leukocyte antigen (HLA)-DR and/or CD38 were observed in the HC group after dose 2 (both P < 0.001), with the greatest increases in HLA-DR+CD8+ T cells and CD38+CD19+ B cells (P = 0.042 and P = 0.031, respectively). In addition, PD1+CD8+ T cells—but not PD1+CD4+ T cells—increased significantly in the HC group (P = 0.027). In the KTx group, however, activated HLA-DR+, CD38+, and PD1+ cells remained at baseline levels. Immunoglobulin (Ig)G against SARS-CoV-2 was detected in only four KTx recipients (13.3%) after dose 2 (P < 0.001). Multivariate logistic regression analyses revealed that ΔHLA-DR+CD8+ T cells and ΔCD38+CD19+ B cells were significantly associated with IgG formation (both P = 0.02). SARS-CoV-2 mRNA vaccine generates impaired cellular and humoral immunity for KTx recipients. Results indicate the need for modified vaccination strategies in immunocompromised KTx recipients.
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Affiliation(s)
- Shinya Takiguchi
- Department of Transplant Surgery, Tokai University School of Medicine, Kanagawa, Japan
| | - Yusuke Tomita
- Department of Transplant Surgery, Tokai University School of Medicine, Kanagawa, Japan
- *Correspondence: Yusuke Tomita, ; orcid.org/0000-0003-4959-6290
| | - Saeko Uehara
- Department of Transplant Surgery, Tokai University School of Medicine, Kanagawa, Japan
| | - Koichiro Tateishi
- Department of Virology, Division of Host Defense Mechanism, School of Medicine, Tokai University, Kanagawa, Japan
| | - Norio Yamamoto
- Department of Virology, Division of Host Defense Mechanism, School of Medicine, Tokai University, Kanagawa, Japan
| | - Michio Nakamura
- Department of Transplant Surgery, Tokai University School of Medicine, Kanagawa, Japan
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Imamura F, Suppasri A, Arikawa T, Koshimura S, Satake K, Tanioka Y. Preliminary Observations and Impact in Japan of the Tsunami Caused by the Tonga Volcanic Eruption on January 15, 2022. Pure Appl Geophys 2022; 179:1549-1560. [PMID: 35693640 PMCID: PMC9166197 DOI: 10.1007/s00024-022-03058-0] [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: 02/05/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
The tsunami caused by the Tonga submarine volcanic eruption that occurred at 13:15 Japan Time (JST) on January 15, 2022, exposed a blind spot in Japan's tsunami monitoring and warning system, which was established in 1952 for local tsunamis and expanded to distant tsunamis after the 1960 Chile tsunami. This paper summarizes how the warning system responded to the unprecedented tsunami, the actual evacuation process, and the damage it caused in Japan. Initially, the tsunami from the volcanic eruption was expected to arrive at approximately midnight with amplitudes of less than 20 cm. However, a series of short waves arrived at approximately 21:00, a few hours earlier than expected. The early arrival of these sea waves coincided with a rapid increase in atmospheric pressure; then, the short-period component was predominant, and the wave height was amplified while forming wave groups. After a 1.2 m tsunami was observed in Amami City in southern Japan at 23:55 JST, the Japan Meteorological Agency issued a tsunami warning/advisory. The tsunami continued, and all advisories were cleared at 14:00 JST on January 16. Information about this tsunami and the response to it are summarized here, including the characteristics and issues of the actual tsunami evacuation situation in each region. There were no casualties, but the issues that emerged included difficulty evacuating on a winter night and traffic congestion due to evacuation by car and under the conditions of the COVID-19 pandemic. In the coastal area, damage to fishing boats and aquaculture facilities was reported due to the flow of the tsunami. In addition, damage to aquaculture facilities, including those producing oysters, scallops, seaweed and other marine products, decreased the supply of marine products, and the economic impact is likely to increase in the future.
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Affiliation(s)
- Fumihiko Imamura
- International Research Institute of Disaster Science (IRIDeS), Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi Japan
| | - Anawat Suppasri
- International Research Institute of Disaster Science (IRIDeS), Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi Japan
| | - Taro Arikawa
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo, Japan
| | - Shunichi Koshimura
- International Research Institute of Disaster Science (IRIDeS), Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi Japan
| | - Kenji Satake
- Earthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan
| | - Yuichiro Tanioka
- Institute of Seismology and Volcanology, Hokkaido University, Kita-10 Nishi-8, Kita-ku, Sapporo, Japan
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