3,964 results on '"A. Toyama"'
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2. Outcome of Modified Laparoscopic Sacrocolpopexy and Its Effect on Voiding Dysfunction
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Yasutomo Suzuki, Satoko Nakayama, Masao Ichikawa, Yuka Toyama, Shigeo Akira, Yuki Endo, and Yukihiro Kondo
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Male ,medicine.medical_specialty ,Urinary Incontinence, Stress ,media_common.quotation_subject ,Urinary system ,Urology ,Urinary incontinence ,urologic and male genital diseases ,Urination ,Pelvic Organ Prolapse ,Cystography ,medicine ,Humans ,Retrospective Studies ,media_common ,medicine.diagnostic_test ,Urinary retention ,business.industry ,General Medicine ,Perioperative ,medicine.disease ,Urodynamics ,Overactive bladder ,Female ,Laparoscopy ,International Prostate Symptom Score ,sense organs ,medicine.symptom ,business - Abstract
Background Laparoscopic sacrocolpopexy (LSC) is an increasingly popular treatment for pelvic organ prolapse (POP) because of its low recurrence rate and safety. Although LSC may improve the voiding function, it may also lead to de novo stress urinary incontinence. The detailed impact of LSC on voiding function and its mechanism remain unclear. Therefore, in this study, we evaluated the impact of LSC on voiding function prospectively by performing a pre- and post-operative urodynamic study in patients with stage 3 or greater POP. Methods Urinary status was evaluated before and 3 months after LSC. Pre- and post-operative evaluations included medical history, clinical examination, urodynamic studies, chain cystography, and residual urine volume measurement. Urinary symptoms were assessed using the International Prostate Symptom Score (IPSS) and the Overactive Bladder Symptom Score (OABSS). Results The non-recurrence rate at 3 months was 82.3%. All recurrences involved bladder prolapse. Apart from the fact that there was no significant change in the OABSS, the improvement in IPSS suggests that subjective voiding symptoms have improved. Although the maximum urinary flow rate did not change significantly, the bladder volume at first sensation increased, urinary storage function improved, and residual urine volume decreased. There were no perioperative complications, and none of the patients complained of post-operative difficulty in urination or urinary retention. The retrovesical angle significantly decreased. Conclusions The modified LSC in women with POP provides good functional outcomes in terms of IPSS, post void residual volume (PVR), and urinary storage function.
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- 2022
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3. Repeated Necrotizing Lymphadenitis with MEFV Gene Mutations
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Norihiko Sakai, Miho Shimizu, Shiori Nakagawa, Takashi Wada, Koichi Sato, Akinori Hara, Yasunori Iwata, Hiroko Ikeda, Megumi Oshima, Kengo Furuichi, Yuta Yamamura, Akihiro Yachie, Taro Miyagawa, Tomoko Toma, Shinji Kitajima, Hisayuki Ogura, Tadashi Toyama, and Kazuya Takasawa
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Pathology ,medicine.medical_specialty ,business.industry ,Inflammasome ,General Medicine ,Gene mutation ,MEFV ,Cervical lymphadenopathy ,Internal Medicine ,Necrotizing lymphadenitis ,Medicine ,Autoinflammatory disease ,Lymph ,medicine.symptom ,business ,Pathological ,medicine.drug - Abstract
We herein report a 36-year-old man with repeated necrotizing lymphadenitis due to MEFV gene mutations. The patient's chief complaints were a fever and painful cervical lymphadenopathy. We diagnosed him with necrotizing lymphadenitis based on the pathological findings of the lymph nodes and the exclusion of other differential diseases. The same episode recurred four times. We speculated the involvement of autoinflammatory backgrounds and detected MEFV gene mutations of E148Q (homo), P369S, and R408Q. Considering the elevation of interleukin-18, these mutations probably played roles in the repeated necrotizing lymphadenitis.
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- 2022
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4. Efficacy of Ultrashort Echo Time Pulmonary MRI for Lung Nodule Detection and Lung-RADS Classification
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Takahiro Ueda, Hiroshi Toyama, Chika Shigemura, Masao Yui, Nayu Hamabuchi, Hirotaka Ikeda, Daisuke Takenaka, Hidekazu Hattori, Yoshiharu Ohno, Takeshi Yoshikawa, Kaori Yamamoto, Kazuhiro Murayama, Hisanobu Koyama, and Ayumi Watanabe
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Male ,medicine.medical_specialty ,Nodule detection ,education.field_of_study ,Lung Neoplasms ,Lung ,business.industry ,Population ,Middle Aged ,Magnetic Resonance Imaging ,medicine.anatomical_structure ,medicine ,Humans ,Multiple Pulmonary Nodules ,Female ,Radiology, Nuclear Medicine and imaging ,Ultrashort echo time ,Prospective Studies ,Radiology ,Tomography, X-Ray Computed ,business ,education ,Early Detection of Cancer - Abstract
Background Pulmonary MRI with ultrashort echo time (UTE) has been compared with chest CT for nodule detection and classification. However, direct comparisons of these methods' capabilities for Lung CT Screening Reporting and Data System (Lung-RADS) evaluation remain lacking. Purpose To compare the capabilities of pulmonary MRI with UTE with those of standard- or low-dose thin-section CT for Lung-RADS classification. Materials and Methods In this prospective study, standard- and low-dose chest CT (270 mA and 60 mA, respectively) and MRI with UTE were used to examine consecutive participants enrolled between January 2017 and December 2020 who met American College of Radiology Appropriateness Criteria for lung cancer screening with low-dose CT. Probability of nodule presence was assessed for all methods with a five-point visual scoring system by two board-certified radiologists. All nodules were then evaluated in terms of their Lung-RADS classification using each method. To compare nodule detection capability of the three methods, consensus for performances was rated by using jackknife free-response receiver operating characteristic analysis, and sensitivity was compared by means of the McNemar test. In addition, weighted κ statistics were used to determine the agreement between Lung-RADS classification obtained with each method and the reference standard generated from standard-dose CT evaluated by two radiologists who were not included in the image analysis session. Results A total of 205 participants (mean age: 64 years ± 7 [standard deviation], 106 men) with 1073 nodules were enrolled. Figure of merit (FOM) (
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- 2022
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5. A case of temporomandibular joint herniation
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Hideharu Hibi, Naoto Toyama, Norihisa Ichimura, Hirohisa Yamada, and Masahito Fujio
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medicine.medical_specialty ,business.industry ,Neoplastic lesion ,Anterior wall ,Aural fullness ,Pathology and Forensic Medicine ,Auditory canal ,Temporomandibular joint ,medicine.anatomical_structure ,stomatognathic system ,Otorhinolaryngology ,Foramen ,Medicine ,Surgery ,Radiology ,Oral Surgery ,business ,Surgical treatment ,Soft tissue density - Abstract
Temporomandibular joint herniation (TJH) is a rare condition in which the contents of the temporomandibular joint herniate into the external auditory canal (EAC). The foramen of Huschke (FH), also known as the foramen tympanicum, is an anatomical defect in the anteroinferior aspect of the EAC bone, and persisting FH is thought to be one of the causes of TJH. We report a case of spontaneous TJH along with a review of the literature. A 42-year-old man with aural fullness visited our department for the examination of the temporomandibular joint and a potentially neoplastic lesion in March 2020. Computed tomography performed previously showed a soft tissue density with a bone defect in the anterior wall of the left EAC. Otoscopic examination revealed a dome-shaped raised mass in the anterosuperior wall of the left side of the EAC. The mass protruded when the mouth was closed and disappeared when the mouth was opened. The patient was diagnosed with left TJH based on the clinical and imaging findings. Due to the lack of clinical symptoms, we decided not to perform aggressive surgical treatment for TJH, but to follow up carefully with regular imaging examinations. Fifteen months have passed since the first visit, and the symptoms have not worsened. This case report shows that TJH presents with characteristic clinical and imaging findings. Therefore, understanding the pathophysiology of this disease is essential for oral and maxillofacial surgeons who deal with temporomandibular joint diseases on a daily basis.
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- 2022
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6. Serologic Survey of IgG Against SARS-CoV-2 Among Hospital Visitors Without a History of SARS-CoV-2 Infection in Tokyo, 2020–2021
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Atsushi Nishida, Masahiko Higa, Naoki Yamamoto, Tsubasa Munakata, Mayumi Kakegawa, Makoto Kurano, Yuko Tokunaga, Takuro Horibe, Wang Da-ming, Kenzaburo Yamaji, Chungen Qian, Takeshi Kawamura, Fuzhen Xia, Masanari Itokawa, Fan He, Fukui K, Sakiko Toyama, Tatsuhiko Kodama, Takahiro Sanada, Tomoko Honda, Michinori Kohara, Syudo Yamasaki, Fumihiko Yasui, Takayuki Harada, Yoshiro Kishi, Risa Kohno, Yudai Kaneko, Yusuke Matsumoto, and Asako Takagi
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Medicine (General) ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,Epidemiology ,viruses ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Population ,Infectious Disease ,Antibodies, Viral ,medicine.disease_cause ,Serology ,R5-920 ,Seroepidemiologic Studies ,Internal medicine ,medicine ,Humans ,Seroprevalence ,Tokyo ,skin and connective tissue diseases ,education ,Coronavirus ,education.field_of_study ,SARS-CoV-2 ,business.industry ,fungi ,IgG seroprevalence ,COVID-19 ,virus diseases ,hospital visitors ,General Medicine ,Serum samples ,Hospitals ,Confidence interval ,body regions ,Cross-Sectional Studies ,Immunoglobulin G ,Original Article ,business - Abstract
Background: Tokyo, the capital of Japan, is a densely populated city of >13 million people, so the population is at high risk of epidemic severe acute respiratory coronavirus 2 (SARS-CoV-2) infection. A serologic survey of anti–SARS-CoV-2 IgG would provide valuable data for assessing the city’s SARS-CoV-2 infection status. Therefore, this cross-sectional study estimated the anti–SARS-CoV-2 IgG seroprevalence in Tokyo. Methods: Leftover serum of 23,234 hospital visitors was tested for antibodies against SARS-CoV-2 using an iFlash 3000 chemiluminescence immunoassay analyzer (Shenzhen YHLO Biotech, Shenzhen, China) with an iFlash–SARS-CoV-2 IgG kit (YHLO) and iFlash–SARS-CoV-2 IgG-S1 kit (YHLO). Serum samples with a positive result (≥10 AU/mL) in either of these assays were considered seropositive for anti–SARS-CoV-2 IgG. Participants were randomly selected from patients visiting 14 Tokyo hospitals between September 1, 2020 and March 31, 2021. No participants were diagnosed with coronavirus disease 2019 (COVID-19), and none exhibited COVID-19-related symptoms at the time of blood collection. Results: The overall anti–SARS-CoV-2 IgG seroprevalence among all participants was 1.83% (95% confidence interval [CI], 1.66–2.01%). The seroprevalence in March 2021, the most recent month of this study, was 2.70% (95% CI, 2.16–3.34%). After adjusting for population age, sex, and region, the estimated seroprevalence in Tokyo was 3.40%, indicating that 470,778 individuals had a history of SARS-CoV-2 infection. Conclusions: The estimated number of individuals in Tokyo with a history of SARS-CoV-2 infection was 3.9-fold higher than the number of confirmed cases. Our study enhances understanding of the SARS-CoV-2 epidemic in Tokyo.
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- 2022
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7. State-of-the-art MR Imaging for Thoracic Diseases
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Hiroshi Toyama, Akiyoshi Iwase, Hirotaka Ikeda, Takeshi Yoshikawa, Daisuke Takenaka, Hidekazu Hattori, Satomu Hanamatsu, Takashi Fukuba, Yumi Tanaka, Hisanobu Koyama, Takahiro Ueda, Yuki Obama, Yoshiharu Ohno, and Kazuhiro Murayama
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Thorax ,medicine.medical_specialty ,Lung Neoplasms ,030218 nuclear medicine & medical imaging ,Pulmonary function testing ,03 medical and health sciences ,0302 clinical medicine ,Thoracic Diseases ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Clinical significance ,Prospective Studies ,medicine.diagnostic_test ,business.industry ,Mediastinum ,Magnetic resonance imaging ,Magnetic Resonance Imaging ,Review article ,medicine.anatomical_structure ,Positron emission tomography ,Positron-Emission Tomography ,Thoracic diseases ,Radiology ,Tomography, X-Ray Computed ,business ,030217 neurology & neurosurgery - Abstract
Since thoracic MR imaging was first used in a clinical setting, it has been suggested that MR imaging has limited clinical utility for thoracic diseases, especially lung diseases, in comparison with x-ray CT and positron emission tomography (PET)/CT. However, in many countries and states and for specific indications, MR imaging has recently become practicable. In addition, recently developed pulmonary MR imaging with ultra-short TE (UTE) and zero TE (ZTE) has enhanced the utility of MR imaging for thoracic diseases in routine clinical practice. Furthermore, MR imaging has been introduced as being capable of assessing pulmonary function. It should be borne in mind, however, that these applications have so far been academically and clinically used only for healthy volunteers, but not for patients with various pulmonary diseases in Japan or other countries. In 2020, the Fleischner Society published a new report, which provides consensus expert opinions regarding appropriate clinical indications of pulmonary MR imaging for not only oncologic but also pulmonary diseases. This review article presents a brief history of MR imaging for thoracic diseases regarding its technical aspects and major clinical indications in Japan 1) in terms of what is currently available, 2) promising but requiring further validation or evaluation, and 3) developments warranting research investigations in preclinical or patient studies. State-of-the-art MR imaging can non-invasively visualize lung structural and functional abnormalities without ionizing radiation and thus provide an alternative to CT. MR imaging is considered as a tool for providing unique information. Moreover, prospective, randomized, and multi-center trials should be conducted to directly compare MR imaging with conventional methods to determine whether the former has equal or superior clinical relevance. The results of these trials together with continued improvements are expected to update or modify recommendations for the use of MRI in near future.
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- 2022
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8. Glucose Tolerance after Pancreatectomy: A Prospective Observational Follow-Up Study of Pancreaticoduodenectomy and Distal Pancreatectomy
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Hiroaki Yanagimoto, Hironori Yamashita, Ippei Matsumoto, Masahiro Kido, Jun Ishida, Sachiyo Shirakawa, Hirochika Toyama, Takumi Fukumoto, Sadaki Asari, and Sachio Terai
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Blood Glucose ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Gastroenterology ,Pancreaticoduodenectomy ,Pancreatectomy ,Postoperative Complications ,Insulin resistance ,Diabetes mellitus ,Internal medicine ,medicine ,Humans ,Insulin ,Prospective Studies ,Aged ,Glycated Hemoglobin ,business.industry ,Glucose Tolerance Test ,Middle Aged ,medicine.disease ,Glucagon-like peptide-1 ,Pancreatic Neoplasms ,Clinical trial ,Female ,Surgery ,Hemoglobin ,Insulin Resistance ,business ,Homeostasis ,Follow-Up Studies - Abstract
Effects of pancreatectomy on glucose tolerance have not been clarified, and evidence regarding the difference in postoperative glucose tolerance between pancreaticoduodenectomy (PD) and distal pancreatectomy (DP) is lacking.This prospective, single-center observational study analyzed 40 patients undergoing PD and 29 patients undergoing DP (Clinical trial registry number UMIN000008122). Glucose tolerance, including insulin secretion (Δ C-peptide immunoreactivity, ΔCPR) and insulin resistance (homeostasis model assessment of insulin resistance, HOMA-IR) were assessed before and 1 month after pancreatectomy using the oral glucose tolerance test (OGTT) and glucagon stimulation test. We assessed long-term hemoglobin A1c (HbA1c) levels in patients, with a follow-up time of 3 years.Percentages of patients diagnosed with abnormal OGTT decreased after PD (from 12 [30%] to 7 [17.5%] of 40 patients, p = 0.096); however, they increased after DP (from 4 [13.8%] to 8 [27.6%] of 29 patients, p = 0.103), although the changes were not statistically significant. ΔCPR decreased after both PD (from 3.2 to 1.0 ng/mL, p0.001) and DP (from 3.3 to 1.8 ng/mL, p0.001). HOMA-IR decreased after PD (from 1.10 to 0.68, p 0.001), but did not change after DP (1.10 and 1.07, p = 0.42). Median HbA1c level was higher after DP than after PD for up to 3 years, but the differences were not statistically significant.In comparisons of pre- and 1 month post-pancreatectomy data, glucose tolerance showed improvement after PD, whereas it worsened after DP. Insulin secretion decreased after both PD and DP. Insulin resistance improved after PD, but did not change after DP. Further studies are warranted to clarify mechanisms of improved insulin resistance after PD.
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- 2021
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9. Linear childhood discoid lupus erythematosus along a Blaschko's line of the arm
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Takuya Miyagawa, Yoshihide Asano, Tetsuo Toyama, and Shinichi Sato
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medicine.medical_specialty ,Discoid lupus erythematosus ,business.industry ,medicine ,Immunology and Allergy ,Dermatology ,Line (text file) ,medicine.disease ,business - Published
- 2021
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10. Impact of Hepatectomy for Advanced Hepatocellular Carcinoma with Major Portal Vein Tumor Thrombus
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Takumi Fukumoto, Takeshi Urade, Daisuke Tsugawa, Hidetoshi Gon, Kaori Kuramitsu, Hirochika Toyama, Shohei Komatsu, Kenji Fukushima, Masahiro Kido, and Hiroaki Yanagimoto
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medicine.medical_specialty ,Carcinoma, Hepatocellular ,viruses ,medicine.medical_treatment ,Portal vein ,Gastroenterology ,Tumor thrombus ,Internal medicine ,medicine ,Hepatectomy ,Humans ,Effective treatment ,Multiple tumors ,Retrospective Studies ,Venous Thrombosis ,Tumor size ,Portal Vein ,business.industry ,Liver Neoplasms ,virus diseases ,Thrombosis ,medicine.disease ,Hepatocellular carcinoma ,Extrahepatic metastasis ,Surgery ,business - Abstract
BACKGROUND Optimal treatment strategies for advanced hepatocellular carcinoma (HCC) with macroscopic portal vein tumor thrombus (PVTT) remain controversial. Therefore, this study aimed to assess the impact and predictive factors of hepatectomy for HCC with macroscopic PVTT. METHODS This study included 100 patients who presented with intraoperatively confirmed PVTT extending to the first portal branch (Vp3), main portal trunk, or opposite-side portal branch (Vp4) between June 2000 and December 2019. Their postoperative outcomes and predictive factors for survival were evaluated. RESULTS Of the 100 patients, 37 (37%) and 63 (63%) had Vp3 and Vp4 PVTTs, respectively. Moreover, 42 (42%) and 58 (58%) patients underwent R0/1 and R2 hepatectomies, respectively. The median survival time (MST) of all patients with Vp3/4 PVTT was 14.5 months; the 1- and 3-year overall survival rates were 59.6 and 16.8%, respectively. The MSTs of patients with Vp3 and Vp4 PVTTs were 16.1 and 14.3 months, respectively (P = 0.7098). The MSTs of patients who underwent R0/1 and R2 hepatectomies were 14.3 and 14.9 months, respectively (P = 0.3831). All assessed tumor factors (including the Vp status [Vp3 or Vp4], type of resection [R0/1 or R2], intrahepatic maximal tumor size, intrahepatic tumor number, and the existence of extrahepatic metastasis) did not influence the overall survival significantly. CONCLUSIONS Tumor factors, such as the presence of a Vp3/4 PVTT, have a strong impact on survival; however, other multiple tumor factors have a limited impact. Hepatectomy can be an effective treatment option for HCC with Vp3/4 PVTT, and its indications should be considered.
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- 2021
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11. A case of thymoma showing significant tumor reduction after anti-thymocyte globulin
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Hiroki Hayashida, Toshiya Hino, Mineo Kurokawa, Akira Honda, Hideaki Mizuno, and Kazuhiro Toyama
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Pulmonary and Respiratory Medicine ,Thymoma ,Globulin ,chemical and pharmacologic phenomena ,Surgical oncology ,hemic and lymphatic diseases ,Cyclosporin a ,medicine ,Humans ,Aplastic anemia ,neoplasms ,Aged ,Antilymphocyte Serum ,biology ,business.industry ,Therapeutic effect ,Anemia, Aplastic ,Thymus Neoplasms ,General Medicine ,medicine.disease ,Anti-thymocyte globulin ,surgical procedures, operative ,Immunology ,Cyclosporine ,biology.protein ,Female ,Surgery ,Cardiology and Cardiovascular Medicine ,business ,Glucocorticoid ,medicine.drug - Abstract
A 71-year-old female with type B3 thymoma developed severe aplastic anemia. Anti-thymocyte globulin was administered with glucocorticoids and cyclosporin A as the treatment for aplastic anemia. Computed tomography scan revealed that thymoma apparently shrank and remained without regrowth for at least 7 months. As previously reported, glucocorticoid has therapeutic effects on thymoma especially with abundant lymphocytes. Anti-thymocyte globulin also depletes peripheral lymphocytes, but its efficacy in the treatment of thymoma is unknown. Anti-thymocyte globulin and glucocorticoids may have cooperated with each other in reducing thymoma in our case. More cases should be accumulated to elucidate the effects of anti-thymocyte globulin on thymoma.
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- 2021
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12. Elevated Foxo3a and Fas‐ligand expression in human periapical granulomas as a potential treatment target
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Keisuke Hatori, Osamu Takeichi, Kazuma Himi, Yurika Toyama, Taiki Miyata, Takahito Tamura, Takeshi Nakamura, and Kae Ishii
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Periodontitis ,Pathology ,medicine.medical_specialty ,Periapical periodontitis ,medicine.diagnostic_test ,business.industry ,Periapical Granuloma ,Interleukin ,Inflammation ,medicine.disease ,Immunofluorescence ,Fas ligand ,Otorhinolaryngology ,medicine ,Immunohistochemistry ,medicine.symptom ,business ,General Dentistry - Abstract
OBJECTIVE Periapical granuloma is a common periodontitis type involving chronic inflammation; however, the efficacy of current therapies is limited. Its molecular pathogenesis also remains obscure. Forkhead box transcription factor class o3a (Foxo3a) and Fas-ligand (FasL) are associated with chronic inflammation. Therefore, in this study, we aimed to clarify the roles of Foxo3a and FasL in periapical granuloma pathophysiology. SUBJECTS AND METHODS Periapical lesions were obtained from patients during endodontic surgery and tooth extraction; those diagnosed with periapical granulomas using haematoxylin and eosin staining were further analysed. Immunohistochemical analysis was performed for Foxo3a and FasL, and real-time polymerase chain reaction was performed for FOXO3A, FASL and interleukin (IL)-1β. Healthy gingival tissues were also examined as controls. RESULTS Neutrophils, lymphocytes and plasma cells in the periapical granulomas, but not healthy tissues, expressed Foxo3a. Dual-colour immunofluorescence imaging revealed Foxo3a and FasL co-expression in leukocytes. FOXO3A, FASL and IL-1β mRNA levels in healthy gingival tissues were significantly lower than those in the periapical granulomas. Additionally, FOXO3A and IL-1β expressions were negatively correlated. CONCLUSIONS Phosphorylated Foxo3a may reduce IL-1β release by inhibiting apoptosis through FasL in periapical periodontitis and prevent exacerbation. Thus, Foxo3a is a potential therapeutic agent for periapical periodontitis.
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- 2021
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13. Effect of Dupilumab on Depression in Asthma with Eosinophilic Chronic Rhinosinusitis in the Japanese Population
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Masachika Hayashi, Natsumi Sakai, Toshiyuki Koya, Arata Horii, Yoshiyuki Muramatsu, Takanobu Sasaki, Yosuke Kimura, Kaori Shinbori, Mio Toyama, Yu-ki Nishiyama, Akira Saito, Kumiko Muramatsu, Asuka Nagai, Toshiaki Kikuchi, and Takashi Hasegawa
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medicine.medical_specialty ,Chronic rhinosinusitis ,Immunology ,Antibodies, Monoclonal, Humanized ,Nasal Polyps ,Japan ,Quality of life ,Internal medicine ,Eosinophilic ,medicine ,Humans ,Immunology and Allergy ,Sinusitis ,Depression (differential diagnoses) ,Rhinitis ,Asthma ,Depression ,business.industry ,General Medicine ,medicine.disease ,Dupilumab ,Chronic Disease ,Cohort ,Quality of Life ,Airway ,business - Abstract
Introduction: Psychological disorders, such as depression, are markedly prevalent in patients with airway diseases. In this study, we assessed the effect of treatment with dupilumab, an IL-4 receptor α chain antibody, on depressive symptoms in a cohort of patients with asthma with eosinophilic chronic rhinosinusitis (ECRS). Methods: The study participants, diagnosed with asthma and ECRS, were assessed for symptoms and quality of life (QOL) scores for asthma and ECRS and medications. The Patient Health Questionnaire-9 (PHQ-9) scores were used to evaluate the depressive state. The depressive symptoms were compared with asthma and ECRS symptoms both at the time of initiation and after 4 months of dupilumab treatment. Results: Ultimately, 31 patients were included in the study. Most patients demonstrated a depressive state that was correlated with the nasal symptom score. In the evaluation 4 months after dupilumab treatment, the PHQ-9 score was significantly reduced, and the decrease was remarkable in patients whose nasal symptom score was reduced by 50% or more. Additionally, the PHQ-9 scores in patients with improved nasal and asthma symptoms were significantly reduced. Discussion/Conclusion: Dupilumab may improve QOL in patients with bronchial asthma with ECRS by reducing depressive symptoms through the improvement of clinical symptoms.
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- 2021
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14. Clinical effect of delgocitinib 0.5% ointment on atopic dermatitis eczema intensity and skin barrier function
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Hajime Iizuka, Kenji Kabashima, Masatoshi Abe, Osamu Nemoto, Katsuyo Ohashi-Doi, Ikue Nemoto-Hasebe, and Hiroyuki Toyama
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medicine.medical_specialty ,Atopic dermatitis (eczema) ,business.industry ,medicine ,Immunology and Allergy ,Dermatology ,Atopic dermatitis ,medicine.disease ,business ,Skin barrier function ,Janus kinase inhibitor ,Intensity (physics) - Published
- 2021
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15. Erdheim-Chester disease: consensus recommendations for evaluation, diagnosis, and treatment in the molecular era
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Xin Xin Cao, Benjamin H. Durham, Paul C. Hendrie, Aaron M. Goodman, Jennifer Picarsic, Eric D. Jacobsen, Juvianee Estrada-Veras, Andre Abdo, Michael Girschikofsky, Matthew Collin, Kenneth L. McClain, Mineo Kurokawa, Ronald S. Go, Augusto Vaglio, Mark L. Heaney, Kazuhiro Toyama, Lorenzo Dagna, Julien Haroche, Oshrat Hershkovitz-Rokah, Eli L. Diamond, Ofer Shpilberg, Roei D Mazor, Filip Janku, Fleur Cohen-Aubart, Gaurav Goyal, Goyal, G., Heaney, M. L., Collin, M., Cohen-Aubart, F., Vaglio, A., Durham, B. H., Hershkovitz-Rokah, O., Girschikofsky, M., Jacobsen, E. D., Toyama, K., Goodman, A. M., Hendrie, P., Cao, X. -X., Estrada-Veras, J. I., Shpilberg, O., Abdo, A., Kurokawa, M., Dagna, L., Mcclain, K. L., Mazor, R. D., Picarsic, J., Janku, F., Go, R. S., Haroche, J., and Diamond, E. L.
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Male ,Proto-Oncogene Proteins B-raf ,Erdheim-Chester Disease ,medicine.medical_specialty ,genetic structures ,MAP Kinase Signaling System ,medicine.medical_treatment ,Immunology ,MEDLINE ,Disease ,Biochemistry ,Targeted therapy ,Pericarditis ,Fibrosis ,medicine ,Humans ,Molecular Targeted Therapy ,Vemurafenib ,Clinical Trials as Topic ,business.industry ,Cell Biology ,Hematology ,Prognosis ,medicine.disease ,Dermatology ,Histiocytosis, Langerhans-Cell ,Histiocytosis ,Mutation ,Erdheim–Chester disease ,Female ,business ,medicine.drug - Abstract
Erdheim-Chester disease (ECD) is a rare histiocytosis that was recently recognized as a neoplastic disorder owing to the discovery of recurrent activating MAPK (RAS-RAF-MEK-ERK) pathway mutations. Typical findings of ECD include central diabetes insipidus, restrictive pericarditis, perinephric fibrosis, and sclerotic bone lesions. The histopathologic diagnosis of ECD is often challenging due to nonspecific inflammatory and fibrotic findings on histopathologic review of tissue specimens. Additionally, the association of ECD with unusual tissue tropism and an insidious onset often results in diagnostic errors and delays. Most patients with ECD require treatment, except for a minority of patients with minimally symptomatic single-organ disease. The first ECD consensus guidelines were published in 2014 on behalf of the physicians and researchers within the Erdheim-Chester Disease Global Alliance. With the recent molecular discoveries and the approval of the first targeted therapy (vemurafenib) for BRAF-V600–mutant ECD, there is a need for updated clinical practice guidelines to optimize the diagnosis and treatment of this disease. This document presents consensus recommendations that resulted from the International Medical Symposia on ECD in 2017 and 2019. Herein, we include the guidelines for the clinical, laboratory, histologic, and radiographic evaluation of ECD patients along with treatment recommendations based on our clinical experience and review of literature in the molecular era.
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- 2020
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16. Elevation of microRNA-214 is associated with progression of liver fibrosis in patients with biliary atresia
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Yuko Tazuke, Kazunori Masahata, Tomohisa Yoneyama, Shuji Miyagawa, Akira Maeda, Chiyoshi Toyama, Takehisa Ueno, Hiroomi Okuyama, and Takaharu Oue
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Liver fibrosis ,Area under the curve ,General Medicine ,medicine.disease ,Gastroenterology ,Downregulation and upregulation ,Biliary atresia ,Fibrosis ,Liver biopsy ,Internal medicine ,Pediatrics, Perinatology and Child Health ,microRNA ,medicine ,Surgery ,In patient ,business - Abstract
MicroRNAs (miRNAs) play an important role in regulating fibrogenesis in the liver. The current study examined the ability of microRNA-214 (miR-214) level in liver and serum samples obtained from patients with BA to predict progressive liver fibrosis in patients with biliary atresia (BA). We examined miR-214 level in relation to conventional markers of liver fibrosis, with liver and serum samples from BA patients. Fifty-two patients with BA who underwent Kasai portoenterostomy and four control patients underwent liver biopsy. In 28 patients with BA, blood samples were collected to analyze circulating serum miR-214. MiR-214 levels in liver tissue were significantly upregulated in patients with BA who had severe liver fibrosis (F3–4) compared to those with none to mild fibrosis (F0–2), whereas suppressors-of-fused homolog (Sufu) mRNA levels were significantly suppressed in F3–4. Serum miR-214 levels were significantly higher in patients with F3–4 compared with F0–2. Area under the curve analysis showed that the serum miR-214 cut-off level for predicting F3–4 was 0.805 (p = 0.0046). Hepatic overexpression of miR-214 is associated with progression of liver fibrosis in patients with BA, and the circulating miR-214 level may serve as a non-invasive predictor of liver fibrosis.
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- 2021
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17. Students’ Perspectives and Achievements toward Online Teaching of Medicinal Chemistry Courses at Pharmacy School in Thailand During the COVID-19 Pandemic
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Chanokporn Sukonpan, Theerasak Rojanarata, Panadda Phattanawasin, Sathit Niratisai, Chutima Limmatvapirat, Panjapol Laopoonpat, Kanawan Pochanakom, Onoomar Toyama, and Paiboon Nantanakorn
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Class (computer programming) ,Academic year ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Communication ,Pharmacy ,General Chemistry ,General Public ,Pharmacy school ,Medicinal chemistry ,Education ,Distance Learning/Self Instruction ,Pandemic ,ComputingMilieux_COMPUTERSANDEDUCATION ,Online teaching ,Curriculum ,Testing/Assessment ,Medicinal Chemistry ,business ,Psychology - Abstract
This communication was to share the efforts made in developing the fully online courses in medicinal chemistry during the educational disruption due to the coronavirus disease 2019 (COVID-19) pandemic. In the academic year 2020, the online course was implemented for the first time at the Faculty of Pharmacy, Silpakorn University, Thailand. Various online teaching strategies were integrated, raising the question of whether the developed online courses would deliver similar learning outcomes to the traditional classroom. At the end of each semester, the teaching assessment report was conducted and evaluated in 4 parts: part 1, evaluation of lecturer; part 2, student’s self-evaluation; part 3, learning outcome development after studying the course; part 4, appropriateness of class environment and equipment. Overall, student responses toward parts 1–3 in the online class were as satisfactory as those in the previous on-site class. Lower scores toward part 4 were observed in the online class. In addition, student performance in terms of grade distributions between the on-site and online classes was different. On-site students earned the highest proportion of A grades, whereas online students earned a higher proportion of B+’s to F’s. While the pandemic persists and the need for online courses remains, we hope that this communication will provide some educational insight and strategies to help in the ongoing efforts to adapt and establish more successful online courses.
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- 2021
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18. Salvage hepatectomy for local recurrence after particle therapy using proton and carbon ion beams for liver cancer
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Masahiro Kido, Y. Demizu, Motofumi Tanaka, Masahiro Tominaga, Shohei Komatsu, Hirochika Toyama, Tomoaki Okimoto, Kazuki Terashima, Takumi Fukumoto, and Yoichiro Uchida
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medicine.medical_specialty ,RD1-811 ,Pleural effusion ,medicine.medical_treatment ,Fistula ,proton beam ,RC799-869 ,Refractory ,medicine ,Particle therapy ,business.industry ,Gastroenterology ,Original Articles ,Perioperative ,hepatocellular carcinoma ,Diseases of the digestive system. Gastroenterology ,medicine.disease ,Surgery ,particle therapy ,Hepatocellular carcinoma ,carbon ion beam ,Original Article ,Hepatectomy ,Liver cancer ,business ,salvage hepatectomy - Abstract
Aim With the increased use of particle therapy for liver cancer, local recurrence after particle therapy increased. Salvage hepatectomy is an acceptable treatment option for local recurrence following particle therapy; however, its safety and effectiveness remain unclear. Therefore, this multi‐center study aimed to verify the feasibility and efficacy of salvage hepatectomy and assess clinical issues associated with its application. Methods We retrospectively assessed the perioperative outcomes, prognosis, and pathological characteristics of 15 patients who underwent salvage hepatectomy for local recurrence after particle therapy between 2006 and 2019. Results Hepatocellular carcinoma and metastatic liver tumors were noted in eight and seven patients, respectively. The mean total dose and number of fractions were 66.5 Gy and 12, respectively, and the mean interval between particle therapy and surgery was 30.1 months. Major hepatectomy was performed in seven cases. Moreover, the mortality rate was 0%, and surgical complications of Clavien‐Dindo grade IIIa or higher were observed in four cases (27%)—two bile leakages, one pleural effusion, and one refractory skin fistula. The median overall survival time and 5‐year overall survival rate after salvage hepatectomy were 29.9 months and 43.1%, respectively. Histological examination of the irradiated liver tissue surrounding the tumor showed sinusoidal dilatation, loss of hepatocyte, and fibrosis in most cases. Conclusion Salvage hepatectomy after particle therapy is a feasible therapy; however, the risk of refractory complications associated with particle therapy is relatively high. Therefore, the first‐line treatment for resectable liver cancer should be carefully determined considering second‐line treatment after local recurrence., This is the first study that verified feasibility and efficacy of salvage hepatectomy for local recurrence after particle therapy and indicated clinical issues and pathological features of this therapy. These data would be a guidepost for surgeons to treat such patients.
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- 2021
19. How to Perform Curative Laparoscopic Hepatectomy for Intraoperatively Unidentified Hepatocellular Carcinoma
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Mitsuru Yanagaki, Takeshi Gocho, Kenei Furukawa, Toru Ikegami, Yoichi Toyama, Jungo Yasuda, Koichiro Haruki, Shinji Onda, Tadashi Uwagawa, Masashi Tsunematsu, and Norimitsu Okui
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Gadolinium DTPA ,Indocyanine Green ,Liver Cirrhosis ,Male ,Cancer Research ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,Laparoscopic hepatectomy ,medicine.medical_treatment ,Intraoperative ultrasonography ,Magnetic Resonance Imaging, Interventional ,medicine ,Hepatectomy ,Humans ,Pathological ,Ultrasonography, Interventional ,Aged ,medicine.diagnostic_test ,business.industry ,Liver Neoplasms ,Magnetic resonance imaging ,General Medicine ,Middle Aged ,medicine.disease ,Tumor Burden ,Oncology ,Hepatocellular carcinoma ,Female ,Laparoscopy ,Radiology ,business ,Indocyanine green fluorescence ,Preoperative imaging - Abstract
BACKGROUND/AIM Detection of hepatocellular carcinoma using intraoperative ultrasonography (IOUS) is indispensable for successful laparoscopic hepatectomy (LH). This study was performed to evaluate patients with intraoperatively unidentified tumours undergoing LH. PATIENTS AND METHODS Seven patients who underwent LH for hepatocellular carcinoma and whose tumours were not detected using IOUS were included in this study. Clinical features, preoperative imaging, intraoperative imaging, surgical procedures, and pathological findings were evaluated. RESULTS Using gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging, all the tumours were enhanced in the arterial phase and rapidly washed out, becoming hypointense to the remainder of the liver. All tumours except one were
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- 2021
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20. Use of the Extensor Carpi Ulnaris Half-Slip for Treating Chronic Neglected Volar Dislocation of the Distal Radioulnar Joint
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Ryo Oda, Kenji Takahashi, Shinsuke Morisaki, Shogo Toyama, and Shinji Tsuchida
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Triangular Fibrocartilage ,Wrist Joint ,Orthodontics ,business.industry ,Druj ,Elbow ,Joint Dislocations ,General Medicine ,Slip (materials science) ,Wrist ,body regions ,Forearm ,medicine.anatomical_structure ,Elbow dislocation ,medicine ,Extensor Carpi Ulnaris ,Humans ,Fibrocartilage ,Dislocation ,business - Abstract
Volar dislocation of the distal radioulnar joint (DRUJ) is a rare injury. Furthermore, few reports exist regarding DRUJ dislocation with simultaneous elbow dislocation. Elbow dislocation is easily diagnosed and reduced, whereas a DRUJ dislocation is easily missed because of an inaccurate or missed examination of the wrist, which results in a chronic condition. We experienced a case of simultaneous elbow and volar DRUJ dislocation; the latter was found 2 months postinjury. To treat chronic volar dislocation of the DRUJ, surgical methods should include reconstruction of the triangle fibrocartilage complex because of scar tissue and severe instability. In this paper, we describe triangle fibrocartilage complex reconstruction by using the extensor carpi ulnaris half-slip. It is the first report of applying this technique for chronic volar DRUJ dislocation. This technique has a role in creating strong stabilization of the DRUJ and can be an effective treatment option.
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- 2021
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21. Trajectories of kidney function in diabetes: a clinicopathological update
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Megumi Oshima, Masayuki Yamanouchi, Kengo Furuichi, Tadashi Toyama, Miho Shimizu, Takashi Wada, and Akinori Hara
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medicine.medical_specialty ,Time Factors ,Urology ,Renal function ,Disease ,Kidney ,urologic and male genital diseases ,Severity of Illness Index ,Diabetic nephropathy ,Diabetes mellitus ,Severity of illness ,medicine ,Albuminuria ,Humans ,Diabetic Nephropathies ,Renal Insufficiency, Chronic ,Pathological ,urogenital system ,business.industry ,medicine.disease ,female genital diseases and pregnancy complications ,Diabetes Mellitus, Type 1 ,Phenotype ,medicine.anatomical_structure ,Diabetes Mellitus, Type 2 ,Nephrology ,Disease Progression ,medicine.symptom ,business ,Glomerular Filtration Rate - Abstract
Diabetic nephropathy has been traditionally diagnosed based on persistently high albuminuria and a subsequent decline in glomerular filtration rate (GFR), which is widely recognized as the classical phenotype of diabetic kidney disease (DKD). Several studies have emphasized that trajectories of kidney function in patients with diabetes (specifically, changes in GFR and albuminuria over time) can differ from this classical DKD phenotype. Three alternative DKD phenotypes have been reported to date and are characterized by albuminuria regression, a rapid decline in GFR, or non-proteinuric or non-albuminuric DKD. Although kidney biopsies are not typically required for the diagnosis of DKD, a few studies of biopsy samples from patients with DKD have demonstrated that changes in kidney function associate with specific histopathological findings in diabetes. In addition, various clinical and biochemical parameters are related to trajectories of GFR and albuminuria. Collectively, pathological and clinical characteristics can be used to predict trajectories of GFR and albuminuria in diabetes. Furthermore, cohort studies have suggested that the risks of kidney and cardiovascular outcomes might vary among different phenotypes of DKD. A broader understanding of the clinical course of DKD is therefore crucial to improve risk stratification and enable early interventions that prevent adverse outcomes. The clinical course of diabetic kidney disease can follow different trajectories of albuminuria and glomerular filtration rate. In this Review, the authors discuss these trajectories and their underlying factors, as well as their correlation with histopathological changes in the kidney and patient outcomes.
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- 2021
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22. Rapidly progressive interstitial lung disease associated with dermatomyositis—Longitudinal course of anti‐MDA5 antibody titer in two cases
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Yoshihide Asano, Tetsuo Toyama, Kentaro Awaji, Tomonori Oka, Shinichi Sato, and Yuki Fukui
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Pathology ,medicine.medical_specialty ,Cyclophosphamide ,business.industry ,Interstitial lung disease ,Dermatology ,Dermatomyositis ,RC581-607 ,medicine.disease ,Tacrolimus ,Longitudinal Course ,Titer ,antimelanoma differentiation‐associated gene 5 antibody ,intravenous immunoglobulin ,RL1-803 ,medicine ,Immunology and Allergy ,negative conversion ,cyclophosphamide ,Immunologic diseases. Allergy ,business ,Anti mda5 antibody ,tacrolimus ,medicine.drug ,combined immunosuppressive therapy - Abstract
Antimelanoma differentiation‐associated gene 5 antibody (anti‐MDA5 Ab)‐positive dermatomyositis frequently develops life‐threatening rapidly progressive interstitial lung disease (RP‐ILD). The longitudinal dynamics of antibody titers reflects treatment responses, and negative conversion of anti‐MDA5 Ab leads to the prevention of RP‐ILD relapse. Case 1 finally achieved negative conversion of anti‐MDA5 Ab after 18‐month immunosuppressive therapy despite early diagnosis from skin manifestations. Case 2 showed re‐elevation of anti‐MDA5 Ab after tacrolimus discontinuation; immediate restart of tacrolimus recovered it without relapse. These cases suggest that anti‐MDA5 Ab monitoring is essential to determine therapeutic strategy in dermatomyositis patients with RP‐ILD during both initial and maintenance phases.
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- 2021
23. INITIAL CHARACTERIZATION OF NOVICE ENGINEERING DESIGNERS' CONSIDERATION OF CONTEXTUAL FACTORS
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Sean Vincent Salazar Herrera, Kentaro Toyama, Kathleen H. Sienko, and Grace Burleson
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Knowledge management ,business.industry ,Design education ,Global health ,Context (language use) ,Capstone ,business ,Engineering design process ,Design methods ,Psychology ,Curriculum - Abstract
Engineering designers are encouraged to consider relevant contextual factors throughout their design processes. However, specific practices for incorporating context into design processes are lacking in the existing literature, and curricula related to the use of context during design processes is limited. As a preliminary step toward characterizing novice engineering designers' use of contextual factors, we qualitatively coded 10 mechanical engineering capstone design reports for contextual factors; half of the projects had domestic sponsors with varying themes, and the other half of the projects had international sponsors with a global health theme. Our findings showed that teams considered technological and institutional factors most frequently; other factors were considered less frequently. Global health themed design teams considered more contextual factors than non-global health themed teams. There was considerable variability among the contextual factors considered, as well as the stages during which they were considered. These outcomes have the potential to inform the development of pedagogical tools to support the acquisition of skills related to formally addressing context during engineering design processes.
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- 2021
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24. A Case of Multiple Sclerosing Pneumocytomas With Calcifications
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Nayu Hamabuchi, Kaoru Kikukawa, Yasushi Hoshikawa, Masashi Kondo, Yoshiharu Ohno, Hidekazu Hattori, Tetsuya Tsukamoto, Hiroshi Toyama, Masahiko Nomura, Seiichiro Ota, Yoshitaka Inui, and Kazuyoshi Imaizumi
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Pulmonary and Respiratory Medicine ,Dynamic contrast ,Nuclear magnetic resonance ,business.industry ,Contrast Media ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Perfusion magnetic resonance imaging ,Magnetic Resonance Imaging ,Magnetic Resonance Angiography - Published
- 2021
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25. Effects of mineralocorticoid receptor antagonist eplerenone on cardiac sympathetic nerve activity and left ventricular remodeling after reperfusion therapy in patients with first ST-segment elevation myocardial infarction
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Shu Kasama, Masato Kasahara, Kazuyoshi Toda, Masahiko Kurabayashi, and Takuji Toyama
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medicine.medical_specialty ,Ejection fraction ,business.industry ,medicine.medical_treatment ,medicine.disease ,Eplerenone ,medicine.anatomical_structure ,Reperfusion therapy ,Internal medicine ,Angioplasty ,medicine ,Cardiology ,ST segment ,Radiology, Nuclear Medicine and imaging ,cardiovascular diseases ,Myocardial infarction ,Cardiology and Cardiovascular Medicine ,Ventricular remodeling ,business ,medicine.drug ,Artery - Abstract
The activation of the renin-angiotensin-aldosterone system prevents the uptake of norepinephrine and promotes structural remodeling of the heart. The mineralocorticoid receptor antagonist (MRA) eplerenone prevents left ventricular (LV) remodeling in patients with acute myocardial infarction, but its influence on cardiac sympathetic nerve activity (CSNA) has not been determined. We retrospectively evaluated the first ST-segment elevation myocardial infarction (STEMI) patients in our database who underwent 123I-metaiodobenzylguanidine (MIBG) scintigraphy 3 weeks after admission. Eighty-four STEMI patients after primary coronary angioplasty were selected, and used propensity score matching to compare patients who treated with MRA (N = 42), and those who did not (N = 42). The LV end-diastolic volume, end-systolic volume, and ejection fraction were determined by echocardiography, and plasma procollagen type III amino terminal peptide (PIIINP) was measured before and 3 weeks after treatment. The delayed total defect score (TDS), delayed heart/mediastinum count (H/M) ratio, and washout rate (WR) were determined using 123I-MIBG scintigraphy after 3 weeks. Following primary angioplasty, age, gender, risk factors, culprit coronary artery, peak serum creatine phosphokinase concentration, and recanalization time were similar in the two groups. However, the MRA group showed significantly lower TDS and WR values (TDS: 22.8 ± 8.1 vs 32.2 ± 11.5, P < 0.005; WR: 31.1 ± 9.0% vs 42.7 ± 9.9%, P < 0.001) and a significantly higher H/M ratio (2.23 ± 0.41 vs 2.03 ± 0.36, P < 0.05) than the non-MRA group. The degree of change in LV parameters, and PIIINP were more favorable in the MRA group than in the non-MRA group. Moreover, multiple linear regression analyses revealed that both WR and not MRA treatment were significant predictor for LV remodeling, along with PIIINP concentrations. Administration of eplerenone improves CSNA and prevents LV remodeling in patients with a first STEMI.
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- 2021
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26. Long-Term Functional and Oncologic Outcomes of Robot-Assisted Partial Nephrectomy for Cystic Renal Tumors: A Single-Center Retrospective Study
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Naohiko Fukami, Ryoichi Shiroki, Kosuke Fukaya, Hiroshi Toyama, Masashi Takenaka, Hitomi Sasaki, Kiyoshi Takahara, Mamoru Kusaka, Ryo Matsukiyo, Kenji Zennami, Manabu Ichino, Makoto Sumitomo, and Takuhisa Nukaya
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medicine.medical_specialty ,business.industry ,Urology ,medicine.medical_treatment ,Kidney Neoplasm ,Retrospective cohort study ,Robotics ,Kidney ,medicine.disease ,Single Center ,Nephrectomy ,Kidney Neoplasms ,humanities ,Surgery ,body regions ,Treatment Outcome ,Robotic Surgical Procedures ,Renal cell carcinoma ,medicine ,Humans ,Neoplasm Recurrence, Local ,business ,Retrospective Studies - Abstract
Objectives: To evaluate the outcomes of robot-assisted partial nephrectomy (RAPN) in cystic renal tumors. Materials and Methods: We retrospectively analyzed patients who underwent RAPN for either c...
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- 2021
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27. Anesthetic management of multiple acyl-coenzyme A dehydrogenase deficiency in a series of surgeries under general anesthesia: a case report
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Ryoko Owaki-Nakano, Emiko Toyama, Midoriko Higashi, Ken Yamaura, Kenji Shigematsu, and Kohei Iwashita
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medicine.medical_specialty ,congenital, hereditary, and neonatal diseases and abnormalities ,Anesthetic management ,Case Report ,Rhabdomyolysis ,03 medical and health sciences ,chemistry.chemical_compound ,Coronary artery bypass surgery ,0302 clinical medicine ,030202 anesthesiology ,Anesthesiology ,030225 pediatrics ,medicine ,RD78.3-87.3 ,Multiple Acyl-CoA Dehydrogenase Deficiency ,Acyl-coenzyme A dehydrogenase ,Fatty acid metabolism ,business.industry ,RC86-88.9 ,nutritional and metabolic diseases ,Medical emergencies. Critical care. Intensive care. First aid ,Perioperative ,medicine.disease ,Anesthesiology and Pain Medicine ,chemistry ,Glutaric acidemia ,Anesthesia ,business - Abstract
Background Glutaric acidemia is a type of multiple acyl-coenzyme A dehydrogenase deficiency, an inborn error in fatty acid metabolism. In patients with glutaric acidemia, during the perioperative period, prolonged fasting, stress, and pain have been identified as risk factors for the induction of metabolic derangement. This report describes the surgical and anesthetic management of a patient with glutaric acidemia. Case presentation A 56-year-old male patient with glutaric acidemia type 2 underwent a series of surgeries. During the initial off-pump coronary artery bypass surgery, the patient developed renal failure due to rhabdomyolysis upon receiving glucose at 2 mg/kg/min. However, in the second laparoscopic cholecystectomy, rhabdomyolysis was avoided by administering glucose at 4 mg/kg/min. Conclusions To avoid catabolism in patients with glutaric acidemia, appropriate glucose administration is important, depending on the surgical risk.
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- 2021
28. Successive perioperative management of laparoscopic liver resection in the reverse Trendelenburg position for a patient with Fontan physiology: a case report
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Masanori Yamauchi, Moeka Saito, Hiroaki Toyama, and Kazutomo Saito
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Laparoscopic surgery ,Cardiac output ,business.industry ,RC86-88.9 ,medicine.medical_treatment ,Fontan-associated liver disease ,Central venous pressure ,Hemodynamics ,Case Report ,Medical emergencies. Critical care. Intensive care. First aid ,Laparoscopic liver resection ,medicine.disease ,Anesthesiology and Pain Medicine ,medicine.anatomical_structure ,Reverse Trendelenburg position ,Pneumoperitoneum ,Anesthesiology ,Anesthesia ,Vascular resistance ,Medicine ,RD78.3-87.3 ,business ,Transpulmonary thermodilution ,Venous return curve ,Abdominal surgery - Abstract
Background Laparoscopic surgery for a patient with Fontan physiology is challenging because pneumoperitoneum and positive pressure ventilation could decrease venous return and the accumulated partial pressure of arterial carbon dioxide (PaCO2) could increase pulmonary vascular resistance, which might lead to disruption of the hemodynamics. Case presentation A 25-year-old man with Fontan physiology was scheduled to undergo laparoscopic liver resection for Fontan-associated liver disease (FALD) with noninvasive monitoring of cardiac output (CO) by transpulmonary thermodilution in addition to transesophageal echocardiography. The abdominal air pressure was maintained low, and we planned to switch to open abdominal surgery promptly if hemodynamic instability became apparent because of the accumulated PaCO2 or postural change. Consequently, the pneumoperitoneum had limited influence on circulatory dynamics, but central venous pressure significantly decreased with postural change to the reverse Trendelenburg position. Laparoscopic liver resection for FALD was performed successfully with no significant changes in CO and central venous saturation. Conclusions With strict circulation management, laparoscopic surgery for a patient with Fontan physiology can be performed safely. Comprehensive hemodynamic assessment by noninvasive transpulmonary thermodilution can provide valuable information to determine the time for shift to open abdominal surgery.
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- 2021
29. Diagnostic accuracy of LAMP versus PCR over the course of SARS-CoV-2 infection
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Yohei Doi, Yoko Toyama, Masato Inaba, Tomoya Horiguchi, Yuki Higashimoto, Kazuyoshi Imaizumi, Masaya Hibino, and Mitsunaga Iwata
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Adult ,Male ,0301 basic medicine ,Microbiology (medical) ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Concordance ,030106 microbiology ,Loop-mediated isothermal amplification ,Diagnostic accuracy ,Infectious and parasitic diseases ,RC109-216 ,Sensitivity and Specificity ,Gastroenterology ,Article ,law.invention ,03 medical and health sciences ,COVID-19 Testing ,0302 clinical medicine ,Sensitivity ,law ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Polymerase chain reaction ,RT-LAMP ,SARS-CoV-2 ,business.industry ,RT-qPCR ,COVID-19 ,General Medicine ,Nucleic acid amplification technique ,Middle Aged ,Reverse transcriptase ,eye diseases ,Infectious Diseases ,Molecular Diagnostic Techniques ,COVID-19 Nucleic Acid Testing ,Specificity ,Female ,business ,Nucleic Acid Amplification Techniques - Abstract
Objective Reverse transcription loop-mediated isothermal amplification (RT-LAMP) has been validated to diagnose several viral infections. However, its diagnostic accuracy in detecting SARS-CoV-2 in real-life clinical settings remains unclear. This study aimed to determine the diagnostic sensitivity and specificity of RT-LAMP compared to reverse transcription-quantitative polymerase chain reaction (RT-qPCR) over the disease course of COVID-19. Methods A total of 124 nasopharyngeal swab samples obtained from 24 COVID-19 patients were tested by RT-LAMP and RT-qPCR. Sensitivities and specificities of RT-LAMP compared with RT-qPCR were analyzed as a function of time from onset. Results Up to the 9th day after onset, the RT-LAMP had a positivity of 92.8%, and the sensitivity and specificity compared with RT-qPCR was 100%. However, after the 10th day after onset, the positivity of RT-LAMP decreased to less than 25%, and the concordance of positivity between the two methods was below 60%. The limit of detection of RT-LAMP was 6.7 copies/reaction. Conclusions Until the 9th day after the onset of symptoms, RT-LAMP had the same diagnostic accuracy as RT-qPCR. These findings suggest that RT-LAMP can be used as a diagnostic tool for COVID-19 as an alternative to RT-qPCR in the acute symptomatic phase of COVID-19.
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- 2021
30. Pancreatic metastasis of renal cell carcinoma filling into the duct of Santorini
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Yasutaka Yamada, Shohei Abe, Hideyuki Shiomi, Yuzo Kodama, Arata Sakai, Hirochika Toyama, Tomoo Itoh, Toshiki Hyodo, Maki Kanzawa, Atsuhiro Masuda, Masanori Gonda, Takashi Kobayashi, and Sachiyo Shirakawa
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Male ,medicine.medical_specialty ,Abdominal pain ,medicine.medical_treatment ,urologic and male genital diseases ,03 medical and health sciences ,0302 clinical medicine ,Renal cell carcinoma ,Surgical oncology ,medicine ,Humans ,Carcinoma, Renal Cell ,Aged ,Pancreatic duct ,Intraductal papillary mucinous neoplasm ,business.industry ,Pancreatic metastasis ,Gastroenterology ,Pancreatic Ducts ,General Medicine ,medicine.disease ,Pancreaticoduodenectomy ,Nephrectomy ,female genital diseases and pregnancy complications ,Kidney Neoplasms ,Pancreatic Neoplasms ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Pancreatic intraductal tumor ,Radiology ,medicine.symptom ,business ,Duct (anatomy) ,Carcinoma, Pancreatic Ductal - Abstract
A 78-year-old man who underwent right nephrectomy for renal cell carcinoma (RCC) 18 years ago visited our hospital complaining of abdominal pain. Imaging revealed that the pancreatic head tumor obstructed the Santorini duct. We suspected a pancreatic intraductal tumor, such as an intraductal tubulopapillary neoplasm or intraductal papillary mucinous neoplasm. Thus, the patient underwent subtotal stomach-preserving pancreaticoduodenectomy. Pathological findings confirmed the diagnosis of metastatic RCC. Herein, we report a case of pancreatic metastasis of an RCC that presented with a tumor in the pancreatic duct.
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- 2021
31. Automation of multi-modal beam focusing of an MeV sub-microprobe for ion beam analysis
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Yoshiharu Kitayama, S. Toyama, Yohei Kikuchi, K. Kasahara, Daiki Seki, Kazuya Numao, Wataru Kada, Shigeo Matsuyama, Yuta Sato, Yuta Takai, and Misako Miwa
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010302 applied physics ,Nuclear and High Energy Physics ,Microprobe ,Materials science ,Ion beam analysis ,business.industry ,Process (computing) ,Astigmatism ,medicine.disease ,01 natural sciences ,010305 fluids & plasmas ,Ion ,Optics ,0103 physical sciences ,Line (geometry) ,medicine ,Physics::Accelerator Physics ,business ,Instrumentation ,Beam (structure) ,Excitation - Abstract
We have developed an automatic beam-focusing system to reduce the experimental configuration time for a sub-micrometer-scaled beam probe of MeV ions with various analytical applications. Parasitic aberration due to misalignment and astigmatism must be eliminated or minimized to obtain an ideal beam spot size of less than 1 × 1 µm2, because astigmatism from excitation error and axial misalignment broaden the beam. The system involves a two-stage process of contrast and phase-difference detection that includes an automated minimization algorithm for astigmatism. The process can identify misalignments of axial rotation by measuring the line profiles of a fine mesh grid. The contrast method focused a proton microprobe to approximately 1 μm2 within 30 min, without the need for manual control when rotational misalignment was not present, while the phase-difference method successfully reduced the rotational error of lenses.
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- 2021
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32. Serum hemoglobin concentration and risk of renal function decline in early stages of diabetic kidney disease: a nationwide, biopsy-based cohort study
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Yuki Oba, Hirofumi Makino, Daisuke Ikuma, Norihiko Sakai, Miho Shimizu, Tatsuya Suwabe, Takashi Wada, Masayuki Yamanouchi, Yukio Yuzawa, Ken-ichi Samejima, Seiichi Matsuo, Megumi Oshima, Yuta Yamamura, Shinichi Nishi, Tomoya Nishino, Shusaku Matsuoka, Tadashi Toyama, Yoshihiko Ueda, Yoshiki Suzuki, Hiroki Mizuno, Akinori Hara, Yugo Shibagaki, Hiroshi Kitamura, Shinji Kitajima, Yasunori Iwata, Junichi Hoshino, Hiroshi Sato, Noriko Uesugi, Naoki Sawa, Hitoshi Yokoyama, Kentaro Kohagura, Yoshifumi Ubara, and Kengo Furuichi
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Male ,medicine.medical_specialty ,Anemia ,Biopsy ,030232 urology & nephrology ,Renal function ,Kidney ,Gastroenterology ,Cohort Studies ,Hemoglobins ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Diabetes mellitus ,Internal medicine ,Renal fibrosis ,Humans ,Medicine ,Diabetic Nephropathies ,030212 general & internal medicine ,Transplantation ,Creatinine ,medicine.diagnostic_test ,business.industry ,Hazard ratio ,Middle Aged ,medicine.disease ,Diabetes Mellitus, Type 2 ,chemistry ,Nephrology ,Disease Progression ,Female ,Renal biopsy ,business ,Glomerular Filtration Rate ,Kidney disease - Abstract
Background Prognosticating disease progression in patients with diabetic kidney disease (DKD) is challenging, especially in the early stages of kidney disease. Anemia can occur in the early stages of kidney disease in diabetes. We therefore postulated that serum hemoglobin (Hb) concentration, as a reflection of incipient renal tubulointerstitial impairment, can be used as a marker to predict DKD progression. Methods Drawing on nationally representative data of patients with biopsy-proven DKD, 246 patients who had an estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2 at renal biopsy were identified: age 56 (45–63) years; 62.6% men; Hb 13.3 (12.0–14.5) g/dL; eGFR 76.2 (66.6–88.6) mL/min/1.73 m2; urine albumin-to-creatinine ratio 534 (100–1480) mg/g Crea. Serum Hb concentration was divided into quartiles: ≤12, 12.1–13.3, 13.4–14.5 and ≥14.6 g/dL. The association between serum Hb concentration and the severity of renal pathological lesions was explored. A multivariable Cox regression model was used to estimate the risk of DKD progression (new onset of end-stage kidney disease, 50% reduction of eGFR or doubling of serum creatinine). The incremental prognostic value of DKD progression by adding serum Hb concentration to the known risk factors of DKD was assessed. Results Serum Hb levels negatively correlated with all renal pathological features, especially with the severity of interstitial fibrosis (ρ = −0.52; P Conclusions Serum Hb concentration, which reflects incipient renal fibrosis, can be useful for predicting DKD progression in the early stages of kidney disease.
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- 2021
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33. The immunological impact of preoperative chemoradiotherapy on the tumor microenvironment of pancreatic cancer
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Shinichiro Takahashi, Toshihiro Suzuki, Katsuhiko Uesaka, Motohiro Kojima, Satoshi Okubo, Yasuhiro Shimizu, Hirochika Toyama, Genichiro Ishii, Naoto Gotohda, Soichiro Morinaga, and Masayoshi Hioki
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Male ,0301 basic medicine ,Oncology ,Cancer Research ,Cell ,immune response ,0302 clinical medicine ,Tumor Microenvironment ,Pathology ,CD20 ,B-Lymphocytes ,Immunity, Cellular ,biology ,FOXP3 ,Forkhead Transcription Factors ,General Medicine ,Middle Aged ,Immunohistochemistry ,Neoadjuvant Therapy ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Female ,Original Article ,Carcinoma, Pancreatic Ductal ,medicine.medical_specialty ,Stromal cell ,pancreatic ductal adenocarcinoma ,macrophage ,preoperative chemoradiation ,03 medical and health sciences ,Immune system ,Pancreatic cancer ,Internal medicine ,Preoperative Care ,medicine ,Humans ,Lymphocyte Count ,Aged ,fluorescent immunohistochemistry ,Tumor microenvironment ,business.industry ,Macrophages ,Chemoradiotherapy, Adjuvant ,Original Articles ,Antigens, CD20 ,medicine.disease ,CD4 Lymphocyte Count ,Pancreatic Neoplasms ,030104 developmental biology ,Multivariate Analysis ,Cancer cell ,biology.protein ,Neoplasm Recurrence, Local ,business - Abstract
Several therapeutic regimens, including neoadjuvant chemoradiation therapy (NACRT), have been reported to serve as anticancer immune effectors. However, there remain insufficient data regarding the immune response after NACRT in pancreatic ductal adenocarcinoma (PDAC) patients. Data from 40 PDAC patients that underwent surgical resection after NACRT (NACRT group) and 30 PDAC patients that underwent upfront surgery (US group) were analyzed to examine alterations in immune cell counts/distribution using a multiplexed fluorescent immunohistochemistry system. All immune cells were more abundant in the cancer stroma than in the cancer cell nest regardless of preoperative therapy. Although the stromal counts of CD4+ T cells, CD20+ B cells, and Foxp3+ T cells in the NACRT group were drastically decreased in comparison with those of the US group, counts of these cell types in the cancer cell nest were not significantly different between the two groups. In contrast, CD204+ macrophage counts in the cancer stroma were similar between the NACRT and US groups, while those in the cancer cell nests were significantly reduced in the NACRT group. Following multivariate analysis, only a high CD204+ macrophage count in the cancer cell nest remained an independent predictor of shorter relapse‐free survival (odds ratio = 2.37; P = .033). NACRT for PDAC decreased overall immune cell counts, but these changes were heterogeneous within the cancer cell nests and cancer stroma. The CD204+ macrophage count in the cancer cell nest is an independent predictor of early disease recurrence in PDAC patients after NACRT., This study sought to investigate any potential alterations in the distribution and clinical impact of immune cells in patients with pancreatic ductal adenocarcinoma (PDAC) treated with neoadjuvant chemoradiation therapy (NACRT). The present analysis revealed that NACRT for PDAC decreased overall immune cell counts, but these changes were heterogeneous within the cancer cell nests and cancer stroma. The CD204+ macrophage count in the cancer cell nest is an independent predictor of early disease recurrence in PDAC patients after NACRT.
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- 2021
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34. BMP9‐ID1 signaling promotes EpCAM‐positive cancer stem cell properties in hepatocellular carcinoma
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Han Chen, Yingyi Li, Ru Li, Masao Honda, Yoshio Sakai, Kazunori Kawaguchi, Phuong Thi Bich Doan, Taro Yamashita, Takeshi Terashima, Noriho Iida, Shuichi Kaneko, Tetsuro Shimakami, Hajime Takatori, Akihiro Seki, Hidetoshi Nakagawa, Hikari Okada, Eishiro Mizukoshi, Tadashi Toyama, Tatsuya Yamashita, Tsuyoshi Suda, and Kouki Nio
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Inhibitor of Differentiation Protein 1 ,cancer stem cells ,0301 basic medicine ,Cancer Research ,Carcinoma, Hepatocellular ,Cohort Studies ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Cancer stem cell ,Cell Line, Tumor ,Growth Differentiation Factor 2 ,BMP9‐ID1 signaling ,Genetics ,medicine ,Humans ,Galunisertib ,Receptor ,Wnt Signaling Pathway ,Research Articles ,RC254-282 ,Gene knockdown ,business.industry ,Liver Neoplasms ,Wnt signaling pathway ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Cancer ,Epithelial cell adhesion molecule ,hepatocellular carcinoma ,General Medicine ,Prognosis ,medicine.disease ,digestive system diseases ,030104 developmental biology ,Oncology ,chemistry ,Gene Knockdown Techniques ,EpCAM ,030220 oncology & carcinogenesis ,Neoplastic Stem Cells ,Cancer research ,Molecular Medicine ,business ,BMP receptor inhibitor ,Signal Transduction ,Research Article ,Transforming growth factor - Abstract
The malignant nature of hepatocellular carcinoma (HCC) is closely related to the presence of cancer stem cells (CSCs). Bone morphologic protein 9 (BMP9), a member of the transforming growth factor‐beta (TGF‐β) superfamily, was recently reported to be involved in liver diseases including cancer. We aimed to elucidate the role of BMP9 signaling in HCC‐CSC properties and to assess the therapeutic effect of BMP receptor inhibitors in HCC. We have identified that high BMP9 expression in tumor tissues or serum from patients with HCC leads to poorer outcome. BMP9 promoted CSC properties in epithelial cell adhesion molecule (EpCAM)‐positive HCC subtype via enhancing inhibitor of DNA‐binding protein 1 (ID1) expression in vitro. Additionally, ID1 knockdown significantly repressed BMP9‐promoted HCC‐CSC properties by suppressing Wnt/β‐catenin signaling. Interestingly, cells treated with BMP receptor inhibitors K02288 and LDN‐212854 blocked HCC‐CSC activation by inhibiting BMP9‐ID1 signaling, in contrast to cells treated with the TGF‐β receptor inhibitor galunisertib. Treatment with LDN‐212854 suppressed HCC tumor growth by repressing ID1 and EpCAM in vivo. Our study demonstrates the pivotal role of BMP9‐ID1 signaling in promoting HCC‐CSC properties and the therapeutic potential of BMP receptor inhibitors in treating EpCAM‐positive HCC. Therefore, targeting BMP9‐ID1 signaling could offer novel therapeutic options for patients with malignant HCC., BMP9‐ID1 signaling plays a pivotal role in promoting the cancer stem cell properties of EpCAM+ hepatocellular carcinoma (HCC) cells by activating Wnt/β‐catenin signaling. Treatment with BMP receptor inhibitors that block BMP9‐ID1 signaling could potentially be considered as targeted therapy for patients with malignant HCC.
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- 2021
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35. Serial assessments of anterior pituitary hormones in a case of mixed histiocytosis representing Langerhans cell histiocytosis overlapping with Erdheim–Chester disease
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Masanao Fujii, Rikako Nakajima, Kazuhiro Toyama, Mineo Kurokawa, Yuki Yamamoto, Hiroaki Yagyu, Kei Ito, Jun Ito, Aiko Muramatsu, Norio Takayashiki, and Yukino Katakura
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,030209 endocrinology & metabolism ,Diseases of the endocrine glands. Clinical endocrinology ,03 medical and health sciences ,0302 clinical medicine ,Anterior pituitary ,Langerhans cell histiocytosis ,Japan ,Posterior pituitary ,Internal Medicine ,medicine ,Pituitary stalk ,Insight into Disease Pathogenesis or Mechanism of Therapy ,business.industry ,Asian - Japanese ,medicine.disease ,RC648-665 ,Hyperintensity ,Histiocytosis ,medicine.anatomical_structure ,Pituitary ,030220 oncology & carcinogenesis ,Diabetes insipidus ,Erdheim–Chester disease ,May ,business - Abstract
Summary A 61-year-old man developed central diabetes insipidus caused by mixed histiocytosis (MH) representing Langerhans cell histiocytosis overlapping with Erdheim–Chester disease. Bone, skin, vascular, and retroperitoneal involvements were also observed. Dynamic hormonal testing showed normal responses for anterior pituitary hormones, except for impaired secretion of growth hormone (GH). MRI of the brain showed thickening of the pituitary stalk with slightly reduced signal hyperintensity in the posterior pituitary lobe on T1-weighted imaging. During 2 years of follow-up without radical treatment for MH, imaging studies suggested extension of vascular and retroperitoneal involvements. In contrast, brain MRI did not show any particular interval changes, except for the disappearance of hyperintense signalling in the posterior pituitary lobe. Moreover, no other anterior pituitary dysfunctions beyond GH deficiency emerged during the 2 years of follow-up. The natural history of MH in this case is described, focusing on serial assessments of pituitary functions using dynamic tests. Learning points Erdheim–Chester disease and Langerhans cell histiocytosis overlapping as MH was described, focusing on pituitary functions. MH caused both GH deficiency and central diabetes insipidus. Despite a lack of radical therapy for MH, no other anterior pituitary dysfunctions emerged for 2 years. Radiological images showed no particular interval changes in pituitary stalk lesions, while vascular and retroperitoneal involvements extended.
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- 2021
36. 50‐3: Novel Bright Rear‐Projection‐Type Transparent Screen Using Tilted Cholesteric Liquid Crystals
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Mitsuyoshi Ichihashi, Hirofumi Toyama, Yukito Saitoh, Satoshi Kuniyasu, Takahiro Hayashi, and Yoji Ito
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Diffraction ,Materials science ,Optics ,Scattering ,Liquid crystal ,business.industry ,Type (model theory) ,Projection (set theory) ,business - Published
- 2021
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37. Moderate alcohol consumption is associated with impaired insulin secretion and fasting glucose in non‐obese non‐diabetic men
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Sakae Miyagi, Yasuhiro Kambayashi, Takayuki Kannon, Toshinari Takamura, Keita Suzuki, Atsushi Tajima, Thao Thi Thu Nguyen, Hiromasa Tsujiguchi, Tadashi Toyama, Akinori Hara, Haruki Nakamura, and Hiroyuki Nakamura
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Blood Glucose ,Male ,endocrine system diseases ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Ideal Body Weight ,Alcohol ,Alcohol drinking ,Logistic regression ,Body Mass Index ,chemistry.chemical_compound ,0302 clinical medicine ,Japan ,030212 general & internal medicine ,Insulin secretion ,Articles ,Fasting ,General Medicine ,Body size ,Middle Aged ,Clinical Science and Care ,Original Article ,Alcohol-Related Disorders ,medicine.medical_specialty ,030209 endocrinology & metabolism ,Carbohydrate metabolism ,Diseases of the endocrine glands. Clinical endocrinology ,Prediabetic State ,03 medical and health sciences ,Asian People ,Internal medicine ,Diabetes mellitus ,Glucose Intolerance ,Internal Medicine ,medicine ,Humans ,Aged ,Glycated Hemoglobin ,business.industry ,Insulin ,nutritional and metabolic diseases ,medicine.disease ,RC648-665 ,Cross-Sectional Studies ,Endocrinology ,chemistry ,Insulin Resistance ,business ,Body mass index ,Homeostasis - Abstract
Aims/Introduction A low insulin secretion capacity has been implicated in the high prevalence of non‐obese diabetes in East Asians. As alcohol consumption alters insulin and glucose metabolism, we tested the hypothesis that alcohol consumption contributes to impaired insulin secretion and glucose intolerance in lean/normal‐weight non‐diabetic Japanese men. Materials and Methods This cross‐sectional study was undertaken among the residents of Shika town, Japan, between 2011 and 2017. A total of 402 non‐diabetic men, including participants with normal fasting plasma glucose (FPG) and impaired FPG (FPG 5.6–6.9 mmol/L), and aged ≥40 years, were examined. FPG, the homeostasis model assessment of insulin secretion capacity (HOMA‐B) and alcohol consumption were evaluated and compared between the body mass index (BMI), Moderate alcohol consumption was associated with significantly low levels of insulin secretion capacity and impaired fasting plasma glucose in the body mass index (BMI)
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- 2021
38. Feasibility of Reductive Hepatectomy in Patients With BCLC B and C Hepatocellular Carcinoma
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Shohei Komatsu, Takumi Fukumoto, Masahiro Kido, Hidetoshi Gon, Hiroaki Yanagimoto, Kaori Kuramitsu, Motofumi Tanaka, Yuki Yasuhara, Hirochika Toyama, and Tetsuo Ajiki
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Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,Neoplasm, Residual ,Bilirubin ,medicine.medical_treatment ,Gastroenterology ,chemistry.chemical_compound ,Internal medicine ,medicine ,Hepatectomy ,Humans ,In patient ,Stage (cooking) ,Aged ,Neoplasm Staging ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Liver Neoplasms ,Albumin ,Cytoreduction Surgical Procedures ,General Medicine ,Middle Aged ,Prognosis ,medicine.disease ,BCLC Stage ,Treatment Outcome ,Oncology ,chemistry ,Hepatocellular carcinoma ,Feasibility Studies ,Female ,Neoplasm Recurrence, Local ,Liver cancer ,business ,Follow-Up Studies - Abstract
Background/aim Few studies have established a definite conclusion regarding the limitation of surgical treatment for patients with Barcelona Clinic Liver Cancer (BCLC) stage B and C hepatocellular carcinoma (HCC). Patients and methods A retrospective analysis was performed on 717 consecutive patients who underwent initial hepatectomy for HCC. Results Reductive hepatectomy was performed in 103 patients, with a median survival time (MST) of 18.0 months. Total bilirubin and albumin levels were identified as independent prognostic factors. The predictive score of these factors ranged from 0 to 2. Subsequent local treatment was performed in 91.0, 75.0, and 25.0% of patients who scored 0, 1, and 2, respectively. The MST for patients with a score of 0, 1, and 2 was 20.1, 14.8, and 2.7 months, respectively, with a significant difference. Conclusion Patients with BCLC stage B and C could be properly treated with reductive hepatectomy and subsequent local treatments.
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- 2021
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39. Successful diagnosis of veno-occlusive disease caused by inotuzumab ozogamicin through minimal-invasive angiography: a case report
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Takatoshi Kubo, Fumio Nakahara, Michiaki Sato, Kazuhiro Toyama, Megumi Yasunaga, Mineo Kurokawa, Osamu Abe, Naoki Okura, Masami Ohzu, and Kumi Nakazaki
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Inotuzumab ozogamicin ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Angiography ,medicine ,Veno-Occlusive Disease ,Hematology ,General Medicine ,Radiology ,business ,medicine.drug - Published
- 2021
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40. Low RAI2 expression is a marker of poor prognosis in breast cancer
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Yasuaki Uemoto, Akiko Kato, Sayaka Nishikawa, Yu Dong, Naoto Kondo, Satoshi Osaga, Tomoka Hisada, Tatsuya Toyama, Hiroshi Sugiura, Yusuke Katagiri, Mitsuo Terada, Takashi Fujita, Hiroyuki Kato, Yumi Wanifuchi-Endo, Katsuhiro Okuda, Satoru Takahashi, Tomoko Asano, and Tae-Sun Kim
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0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,Poor prognosis ,Breast Neoplasms ,Tretinoin ,Disease-Free Survival ,Metastasis ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,law ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,skin and connective tissue diseases ,Messenger RNA ,business.industry ,Prognosis ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Intercellular Signaling Peptides and Proteins ,Biomarker (medicine) ,Suppressor ,Immunohistochemistry ,Female ,Bone marrow ,business - Abstract
Retinoic acid-induced 2 (RAI2) has been shown to be a putative suppressor of the early hematogenous dissemination of tumor cells to the bone marrow in breast cancer. Here, we investigated the associations of RAI2 mRNA and protein expression with clinicopathological factors and prognosis in breast cancer patients with long-term follow-up. Invasive breast cancer tissues (n = 604) were analyzed for RAI2 mRNA expression. We examined the associations of clinicopathological factors with the expression levels of RAI2 mRNA in these samples. We also analyzed RAI2 protein expression by immunohistochemistry in invasive breast cancer tissues (n = 422). We identified significant positive associations between low expression of RAI2 mRNA and shorter disease-free survival (DFS), breast-cancer-specific survival (BCSS), and overall survival (OS) in breast cancer patients. We also identified significant positive associations between negative for RAI2 protein expression and shorter DFS, BCSS, and OS in breast cancer patients. Low RAI2 mRNA and negative for RAI2 protein expression were positively associated with larger tumor size, higher tumor grade, and ERα-negativity. Multivariate analyses indicated that not only RAI2 mRNA but also RAI2 protein expression were independent risk factors for both DFS and BCSS in breast cancer patients. The median follow-up periods were 10.3 and 9.3 years for the RAI2 mRNA and protein expression analyses, respectively. Our findings suggest that RAI2 has a role in the metastasis of breast cancer, and that RAI2 expression could be a promising candidate biomarker of prognosis in breast cancer patients.
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- 2021
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41. The risk factors for cholestasis in patients with duodenal atresia in a single institutional cohort
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Noriaki Usui, Hideki Soh, Souji Ibuka, Keigo Nara, Kazunori Masahata, and Chiyoshi Toyama
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Male ,medicine.medical_specialty ,Intestinal Atresia ,Gestational Age ,Risk Assessment ,Gastroenterology ,Duodenal atresia ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Cholestasis ,Risk Factors ,030225 pediatrics ,Internal medicine ,medicine ,Humans ,Risk factor ,Retrospective Studies ,Univariate analysis ,business.industry ,Incidence ,Infant, Newborn ,Gestational age ,Retrospective cohort study ,General Medicine ,Perioperative ,Odds ratio ,medicine.disease ,Pediatrics, Perinatology and Child Health ,Premature Birth ,Female ,030211 gastroenterology & hepatology ,Surgery ,Duodenal Obstruction ,business - Abstract
The etiology of cholestasis in neonates is associated with several factors including gastrointestinal disease and surgery. We aimed to identify the potential risk factors for perioperative cholestasis in patients with duodenal atresia and determine specific cutoff values for the risk factors. This retrospective cohort study included 76 neonates diagnosed with duodenal atresia surgically treated during the neonatal period at our institution between January 1990 and March 2017. The neonates were categorized into two groups: those with and without cholestasis. Univariate and multivariate analyses were performed to identify the possible risk factors for cholestasis. Among the 76 neonates with duodenal atresia, 21 (27%) developed cholestasis. The duration of total parenteral nutrition was identified as a risk factor in univariate analysis; however, it was not an independent risk factor for cholestasis. Gestational age and highest C-reactive protein (CRP) values were independent risk factors, with adjusted odds ratios of 0.53 and 1.25, respectively. To predict the occurrence of cholestasis, the cutoff value for gestational age was 35.0 weeks, and highest CRP value was 2.4 mg/dL. The occurrence of cholestasis in patients with duodenal atresia was associated with preterm delivery and severity of the inflammatory response during the perioperative period.
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- 2021
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42. Computer Science Intensive Intervention to Prepare and Engage Underrepresented Novice Students at Community College
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Yukie Toyama, David Torres, Colin Schatz, and Louise Ann Lyon
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Medical education ,Higher education ,business.industry ,Intervention (counseling) ,ComputingMilieux_COMPUTERSANDEDUCATION ,Community college ,business ,Education - Abstract
As open-access institutions serving diverse student populations, community colleges are perfect settings for broadening participation in computing efforts in higher education. The very nature of op...
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- 2021
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43. A potential contribution of decreased serum galectin‐10 levels to systemic inflammation and pulmonary vascular involvement in systemic sclerosis
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Tetsuya Ikawa, Yusuke Watanabe, Ayumi Yoshizaki, Kentaro Awaji, Satoshi Toyama, Takuya Miyagawa, Yuki Fukui, Yuta Norimatsu, Yoshihide Asano, Shinichi Sato, and Jun Omatsu
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Galectins ,Inflammation ,Dermatology ,Systemic inflammation ,Clinical correlation ,Biochemistry ,Gastroenterology ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Internal medicine ,medicine ,Humans ,Lung volumes ,Molecular Biology ,Pathological ,Aged ,Galectin ,Scleroderma, Systemic ,business.industry ,Middle Aged ,Systemic Inflammatory Response Syndrome ,030104 developmental biology ,Ventricular pressure ,Female ,medicine.symptom ,Lung Volume Measurements ,business - Abstract
Objective Galectin-10 (Gal-10) is a key molecule involved in eosinophil-mediated suppression of T-cell immune response. Systemic sclerosis (SSc) is characterized by T helper (Th) 2/Th17 immune response and impaired function of regulatory T cells, but the pathological role of Gal-10 has not been studied so far. Therefore, we investigated the clinical correlation of serum Gal-10 levels in SSc patients. Methods Serum Gal-10 levels were determined by enzyme-linked immunosorbent assay in 38 patients with diffuse cutaneous SSc (dcSSc), 30 with limited cutaneous SSc and 20 healthy controls. Clinical correlations of serum Gal-10 levels were examined. Results Serum Gal-10 levels were significantly lower in SSc patients than in healthy controls, especially in dcSSc patients, and inversely correlated with skin score, the percentage of predicted diffusion lung capacity for carbon monoxide and estimated right ventricular systolic pressure (RVSP). Furthermore, serum Gal-10 levels had negative correlations with leucocyte counts and inflammatory parameters. Multivariate regression analysis identified C-reactive protein and RVSP as explanatory parameters for serum Gal-10 levels. Conclusion Decreased serum Gal-10 levels may reflect the impairment of eosinophil-mediated regulatory system for T-cell immune response in SSc, possibly contributing to pulmonary vascular involvement leading to pulmonary arterial hypertension.
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- 2021
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44. Exosome miR-501-3p Elevation Contributes to Progression of Vascular Stiffness
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Joshua M. Spin, Philip S. Tsao, Yoko Okada, Amarsanaa Javkhlant, Masaki Mogi, Kensuke Toyama, Yasunori Abe, Hubert Schelzig, Markus U. Wagenhäuser, and Michiya Igase
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medicine.medical_specialty ,miR-501-3p ,Receiver operating characteristic ,Arteriosclerosis ,business.industry ,Vascular disease ,Original article ,General Medicine ,Odds ratio ,medicine.disease ,Logistic regression ,Arterial stiffness ,Exosome ,Gastroenterology ,Vascular Biology and Vascular Medicine ,Interquartile range ,Internal medicine ,Medicine ,business - Abstract
Background: Tight junction (TJ) disruption and dysfunction are involved in the progression of arteriosclerosis. miR-501-3p regulates endothelial TJ protein-1, resulting in TJ disruption. Because exosomal microRNAs can travel to distant tissues and influence cell behavior, patients with elevated miR-501-3p may experience accelerated vascular disease progression secondary to miR-501-3p-induced reductions in TJ. This study investigated whether plasma exosome miR-501-3p levels are associated with vascular stiffness, an indicator for arteriosclerotic changes. Methods and Results: Fifty-one subjects (mean [±SD] age 70±8 years, 37% male) enrolled in a medical checkup program were recruited to the study. Brachial-ankle arterial pulse wave velocity (baPWV) and plasma exosome miR-501-3p expression were measured. Patients were divided into 2 groups depending on whether their miR-501-3p ∆Ct values were above (“High”; n=24) or below (“Low”; n=27) the cut-off levels determined by receiver operating characteristic (ROC) curve analysis. Median (interquartile range) baPWV levels were significantly higher in the miR-501-3p High than Low group (1,664 [1,496–1,859] vs. 1,450 [1,353–1,686] cm/s, respectively; P
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- 2021
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45. An Ensemble Framework of Multi-ratio Undersampling-based Imbalanced Classification
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Katsuhiko Toyama, Takahiro Komamizu, and Yasuhiro Ogawa
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Computer science ,Undersampling ,business.industry ,Pattern recognition ,Artificial intelligence ,business - Abstract
Class imbalance is commonly observed in real-world data, and it is problematic in that it degrades classification performance due to biased supervision. Undersampling is an effective resampling approach to the class imbalance. The conventional undersampling-based approaches involve a single fixed sampling ratio. However, different sampling ratios have different preferences toward classes. In this paper, an undersampling-based ensemble framework, MUEnsemble, is proposed. This framework involves weak classifiers of different sampling ratios, and it allows for a flexible design for weighting weak classifiers in different sampling ratios. To demonstrate the principle of the design, in this paper, a uniform weighting function and a Gaussian weighting function are presented. An extensive experimental evaluation shows that MUEnsemble outperforms undersampling-based and oversampling-based state-of-the-art methods in terms of recall, gmean, F-measure, and ROC-AUC metrics. Also, the evaluation showcases that the Gaussian weighting function is superior to the uniform weighting function. This indicates that the Gaussian weighting function can capture the different preferences of sampling ratios toward classes. An investigation into the effects of the parameters of the Gaussian weighting function shows that the parameters of this function can be chosen in terms of recall, which is preferred in many real-world applications.
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- 2021
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46. A pediatrician‐friendly review of three common behavioral health screeners in pediatric practice: Findings and recommendations
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Krista Basile, Robert D. Friedberg, Anika Mehta, Courtney Giannini, Hannah Toyama, Jeremy Joves, Saige Portera, and Sandra Trafalis
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medicine.medical_specialty ,Pediatric practice ,Routine screening ,Child psychiatrists ,business.industry ,Review ,Primary care ,Behavioral health ,Screeners ,Pediatrics ,RJ1-570 ,Health problems ,Family medicine ,Pediatrics, Perinatology and Child Health ,medicine ,Anxiety ,Pediatricians ,medicine.symptom ,business ,Depression (differential diagnoses) ,Screening measures - Abstract
Behavioral health concerns are surging in pediatric practices. Fortunately, integrated behavioral/medical health clinics are growing and child psychiatrists/psychologists are increasingly embedded in these care settings to help shoulder the clinical load. Routine screening of behavioral health problems in primary care facilities enables early identification and treatment. However, deciding on sound, efficient, and scalable screening measures is sometimes arduous. Accordingly, this article presents a clinician‐friendly review of three common instruments useful in screening pediatric behavioral health concerns including anxiety, depression, and conduct problems. Psychometric findings and clinical applications of the Pediatric Symptom Checklist‐17 (PSC‐17), the Patient Health Questionnaire‐9 (PHQ‐9), and the Screen for Child Anxiety Related Emotional Disorders (SCARED) are delineated. Finally, clinical implications and recommendations for practicing pediatricians and child psychiatrists are offered., Three widely used behavioral screeners (PSC‐17, PHQ‐9, SCARED) are applicable to integrated pediatric care settings. The PSC‐17 taps a broad range of problems while the PHQ‐9 and SCARED tap depression and anxiety respectively. All three propel early identification and intervention.
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- 2021
47. REVIEW OF ALL TRANSFUSION CASES BY MEDICAL TECHNOLOGISTS FOR PROPER USAGE OF BLOOD PRODUCTS
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Yasushi Okoshi, Teruo Hiroki, Hiroshi Kojima, and Masahiko Toyama
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business.industry ,Medicine ,Medical emergency ,business ,medicine.disease - Published
- 2021
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48. EFFORTS AT OUR HOSPITAL TO REDUCE THE DISPOSAL RATE OF RED BLOOD CELLS
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Chiemi Toyama, Yuma Kinose, Ryoji Obata, and Hiroaki Itabashi
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medicine.medical_specialty ,business.industry ,Emergency medicine ,Medicine ,business - Published
- 2021
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49. Two-versus three-dimensional regions of interest for quantifying SPECT-CT images
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Hiroshi Toyama, Masakazu Tsujimoto, Yoshikazu Kobayashi, Seiji Shirakawa, Masanori Watanabe, Taro Okui, Masaki Uno, Atsushi Teramoto, Ryo Matsukiyo, and Seiichiro Ota
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Dose linearity ,Radiological and Ultrasound Technology ,Volume of interest ,medicine.diagnostic_test ,business.industry ,Biomedical Engineering ,Biophysics ,Standardized uptake value ,Imaging phantom ,Cross section (geometry) ,Recovery coefficient ,Region of interest ,medicine ,Radiology, Nuclear Medicine and imaging ,Nuclear medicine ,business ,Instrumentation ,Emission computed tomography ,Biotechnology ,Mathematics - Abstract
The aim of this study was to investigate the relationship of quantitative parameters between the two-dimensional region of interest (ROI) and the three-dimensional volume of interest (VOI) for accumulation of radiopharmaceutical. Single-photon emission computed tomography combined with computed tomography (SPECT/CT) images of the NEMA/IEC phantom were acquired. The ROIs and VOIs were automatically set to the sphere and background in the phantom. We defined as two-dimensional analysis (2D analysis) that which used ROIs set on the center section of the sphere, and as three-dimensional analysis (3D analysis) that which used VOIs set on the center of gravity of the sphere. Dose linearity (DL), the recovery coefficient (RC), the contrast-to-noise ratio (CNR), and standardized uptake value (SUV) were evaluated. Each index value was compared between both analyses. DL was almost 1 under both conditions. RC showed a similar tendency with 2D and 3D analyses. The CNR for 3D analysis was smaller than for 2D analysis. The maximum SUV was almost equal with both analyses. The mean SUV with 3D analysis was underestimated by 4.83% on average compared with 2D analysis. For the same accumulation, a difference may occur in the quantitative index between 2 and 3D analyses. In particular, the quantitative parameters based on the average value tends to be smaller with 3D analysis than 2D analysis. The quantitative parameters in 2D analysis showed dependence upon the cross section used for setting the ROI, whereas 3D analysis showed less dependence on the position of the VOI.
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- 2021
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50. Parafunctional masseter muscle activity during waking is related to periodontitis progression: A pilot prospective cohort study
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Naoki Toyama, Monirul Islam, Subrina Binta Khair, Daisuke Ekuni, Seiya Kato, Aya Yokoi, Manabu Morita, Daiki Fukuhara, Yoko Uchida-Fukuhara, Takayuki Maruyama, Kota Kataoka, Shigehisa Kawakami, and Naoki Kodama
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Dentistry ,Electromyography ,Masseter muscle ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,medicine ,Humans ,Prospective Studies ,030212 general & internal medicine ,Risk factor ,Periodontitis ,Prospective cohort study ,Aged ,medicine.diagnostic_test ,Masseter Muscle ,business.industry ,Incidence (epidemiology) ,030206 dentistry ,Middle Aged ,University hospital ,medicine.disease ,Periodontics ,Female ,business ,Cohort study - Abstract
Aim The purpose of this pilot prospective cohort study was to investigate the effects of parafunctional masseter muscle activity on periodontitis progression among patients receiving supporting periodontal therapy (SPT). Materials and methods We collected data of patients treated at Okayama University Hospital from August 2014 to September 2018. The progression group was defined as patients with ≥2 teeth demonstrating a longitudinal loss of proximal attachment of ≥3 mm during the 3-year study period and/or at least one tooth extraction due to periodontitis progression. Surface electromyography of masseter muscles at baseline was continuously recorded while patients were awake and asleep. Results We analysed 48 patients (36 females) aged 66.8 ± 9.1 years (mean ± SD). The rate of parafunctional masseter muscle activity during waking hours and sleeping hours at baseline was 60.4% and 52.1%, respectively. Cox's proportional hazards regression model showed that the incidence of periodontitis progression was significantly associated with number of teeth present (p = 0.001) and parafunctional masseter muscle activity during waking hours (p = 0.041). Conclusion Our results suggest that parafunctional masseter muscle activity during waking hours is a risk factor for periodontitis progression among patients receiving SPT.
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- 2021
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