1.Infective Endocarditis with an Acute Myocardial Infarction
Keisuke Nonoyama ; Takayuki Saito ; Yukihide Numata ; Yuji Yamanaka
Japanese Journal of Cardiovascular Surgery 2016;45(3):121-125
An 80-year-old man was referred to our hospital due to anorexia and loss of body weight. Blood examination showed a severe inflammatory reaction and Streptococcus oralis was detected in his blood culture. Echocardiogram demonstrated severe aortic valve regurgitation and vegetation located on the valve. Although we diagnosed infective endocarditis (IE) and started to treat with antibiotics, the patient refused treatment and was discharged. Ten days later, he was readmitted to our hospital because of chest pain. Electrocardiogram demonstrated an anteroseptal acute myocardial infarction and an emergency coronary angiogram revealed complete obstruction of the left anterior descending coronary artery (LAD). He was successfully treated with thrombus aspiration using a catheter device. Pathological examination of the thrombus revealed that the coronary embolism was caused by infective endocarditis (IE). To prevent re-embolization, we performed aortic valve replacement 8 days after the intervention and CABG was also carried out for residual stenosis on the LAD. Coronary embolism caused by IE is a rare problem. We reported a case of AMI associated with IE that was initially treated with thrombus aspiration which was followed by aortic valve replacement.
2.IL-33 and Airway Inflammation.
Keisuke OBOKI ; Susumu NAKAE ; Kenji MATSUMOTO ; Hirohisa SAITO
Allergy, Asthma & Immunology Research 2011;3(2):81-88
Interleukin-33 (IL-33) is the 11th member of IL-1 cytokine family which includes IL-1 and IL-18. Unlike IL-1beta and IL-18, IL-33 is suggested to function as an alarmin that is released upon endothelial or epithelial cell damage and may not enhance acquired immune responses through activation of inflammasome. ST2, a IL-33 receptor component, is preferentially expressed by T-helper type (Th) 2 cells, mast cells, eosinophils and basophils, compared to Th1 cells, Th17 cells and neutrophils. Thus, IL-33 profoundly enhances allergic inflammation through increased expression of proallergic cytokines and chemokines. Indeed, IL-33 and its receptor genes are recognized as the most susceptible genes for asthma by several recent genomewide association studies. It has also recently been shown that IL-33 plays a crucial role in innate eosinophilic airway inflammation rather than acquired immune responses such as IgE production. As such, IL-33 provides a unique therapeutic way for asthma, i.e., ameliorating innate airway inflammation.
Asthma
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Autoimmunity
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Basophils
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Chemokines
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Chronic Disease
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Cytokines
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Eosinophils
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Epithelial Cells
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Humans
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Hypersensitivity
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Immunoglobulin E
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Inflammation
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Interleukin-1
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Interleukin-18
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Mast Cells
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Neutrophils
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Th1 Cells
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Th17 Cells
3.Innate Lymphoid Cells in the Airways: Their Functions and Regulators
Keisuke ORIMO ; Hirohisa SAITO ; Kenji MATSUMOTO ; Hideaki MORITA
Allergy, Asthma & Immunology Research 2020;12(3):381-398
Since the airways are constantly exposed to various pathogens and foreign antigens, various kinds of cells in the airways—including structural cells and immune cells—interact to form a precise defense system against pathogens and antigens that involve both innate immunity and acquired immunity. Accumulating evidence suggests that innate lymphoid cells (ILCs) play critical roles in the maintenance of tissue homeostasis, defense against pathogens and the pathogenesis of inflammatory diseases, especially at body surface mucosal sites such as the airways. ILCs are activated mainly by cytokines, lipid mediators and neuropeptides that are produced by surrounding cells, and they produce large amounts of cytokines that result in inflammation. In addition, ILCs can change their phenotype in response to stimuli from surrounding cells, which enables them to respond promptly to microenvironmental changes. ILCs exhibit substantial heterogeneity, with different phenotypes and functions depending on the organ and type of inflammation, presumably because of differences in microenvironments. Thus, ILCs may be a sensitive detector of microenvironmental changes, and analysis of their phenotype and function at local sites may enable us to better understand the microenvironment in airway diseases. In this review, we aimed to identify molecules that either positively or negatively influence the function and/or plasticity of ILCs and the sources of the molecules in the airways in order to examine the pathophysiology of airway inflammatory diseases and facilitate the issues to be solved.
Adaptive Immunity
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Cellular Microenvironment
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Cytokines
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Homeostasis
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Immunity, Innate
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Inflammation
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Lymphocytes
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Neuropeptides
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Phenotype
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Plastics
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Population Characteristics
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Respiratory Tract Diseases
4.Hochuekkito Efficacy in Late-Onset Hypogonadism (LOH) Patients
Tomoka KUMAMOTO ; Shinichi HISASUE ; Mitsuko YASUDA ; Hisamitsu IDE ; Toshiyuki CHINA ; Masahiro INOUE ; Keisuke SAITO ; Shuji ISOTANI ; Raizo YAMAGUCHI ; Satoru MUTO ; Shigeo HORIE
Kampo Medicine 2013;64(3):160-165
The purpose of this study is to evaluate the efficacy of hochuekkito for late-onset hypogonadism (LOH) patients. We administered hochuekkito 7.5 g/day for 8 weeks to 47 patients with LOH whose AMS scale was more than 27. We assessed the patients' symptom change with the AMS, SHIM, SDS, BDI, and SF-36. We measured their endocrine profiles and levels of their cytokines. At the end of study, 31 of 47 patients were evaluable. No significant difference in subjective symptoms was seen with any questionnaire after 8 weeks hochuekkito administration. However, hochuekkito significantly increased free testosterone and decreased ACTH/cortisol levels. Thus we believe hochuekkito is beneficial for the treatment of LOH.
5.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
6.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
7.Two-year follow-up of unilateral biportal endoscopy assisted extraforaminal lumbar interbody fusion: how to perform indirect decompression and fusion under endoscopy: a retrospective study in Japan
Takaki YOSHIMIZU ; Sanshiro SAITO ; Teruaki MIYAKE ; Tetsutaro MIZUNO ; Ushio NOSAKA ; Keisuke ISHII ; Mizuki WATANABE ; Kanji SASAKI
Asian Spine Journal 2025;19(2):217-227
Methods:
Forty-nine adults who underwent single-level L4/5 interbody fusion for degenerative spondylolisthesis were divided into BE-ELIF (n=27) and OLIF (n=22) groups based on the surgical approach used. Clinical outcomes were assessed using the Visual Analog Scale and the Japanese Orthopedic Association Back Pain Evaluation Questionnaire (JOABPEQ). Radiographic parameters, including distance of spondylolisthesis, disc height, segmental lordosis, lumbar lordosis, pelvic tilt, and sagittal vertical axis, were evaluated preoperatively and at final follow-up.
Results:
OLIF provided significantly better relief of pain in lower limbs and buttocks at 1-year follow-up. No significant between-group differences were observed in JOABPEQ domains. BE-ELIF resulted in greater improvements in spondylolisthesis distance and disc height, while other parameters did not differ significantly between the two groups.
Conclusions
For L4/5 degenerative spondylolisthesis, BE-ELIF demonstrated superior spondylolisthesis reduction and disc height improvement than OLIF. Although BE-ELIF was associated with some inferior clinical outcomes, it provided satisfactory results, effective realignment, and a low complication risk.
8.Effect of tranexamic acid on blood loss reduction in patients undergoing orthognathic surgery under hypotensive anesthesia: a single-center, retrospective, observational study
Keisuke HARADA ; Noritaka IMAMACHI ; Yuhei MATSUDA ; Masato HIRABAYASHI ; Yoji SAITO ; Takahiro KANNO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(2):86-93
Objectives:
Orthognathic surgery is a surgical procedure performed by intraoral approach with established and safe techniques; however, excessive blood loss has been reported in rare cases. In response, investigative efforts to identify methods to reduce the amount of blood loss have been made.Among such methods, the administration of tranexamic acid was reported to reduce the amount of intraoperative blood loss. However, few studies to date have reported the effect of tranexamic acid in orthognathic surgery under hypotensive anesthesia. The present study aimed to investigate the effect of the administration of tranexamic acid on intraoperative blood loss in patients undergoing bimaxillary (maxillary and mandibular) orthognathic surgery under hypotensive anesthesia.
Patients and Methods:
A total of 156 patients (mean age, 27.0±10.8 years) who underwent bimaxillary orthognathic surgery under hypotensive anesthesia performed by the same surgeon between June 2013 and February 2022 were included in this study. The following data were collected from the medical records of each patient: background factors (age, sex, and body mass index), use of tranexamic acid, surgical procedures, previous medical history, duration of surgery, American Society of Anesthesiology physical status findings before surgery, intraoperative blood loss as a primary outcome, in–out balance, and blood test results. Descriptive statistics were calculated for statistical analysis, and a t-test and the chi-squared test were used for between-group comparisons. Group comparisons were performed after 1:1 propensity score matching to adjust for confounding factors. Statistical significance was set at P<0.05.
Results:
Comparison between the groups based on the use of tranexamic acid revealed a significant difference in operation time. Propensity score matching analysis revealed that intraoperative blood loss was significantly lower in the tranexamic acid group.
Conclusion
The administration of tranexamic acid was effective in reducing intraoperative blood loss in patients undergoing bimaxillary orthognathic surgery under hypotensive anesthesia.
9.Clinical Usefulness of Corticotropin Releasing Hormone Testing in Subclinical Cushing's Syndrome for Predicting Cortisol Replacement after Adrenalectomy.
Masahiro INOUE ; Hisamitsu IDE ; Koji KURIHARA ; Tatsuro KOSEKI ; Jingsong YU ; Toshiyuki CHINA ; Keisuke SAITO ; Shuji ISOTANI ; Satoru MUTO ; Shigeo HORIE
Korean Journal of Urology 2012;53(6):414-418
PURPOSE: The purpose of this study was to investigate the clinical and hormonal features of patients with incidentally discovered adrenal adenomas in relation to corticotropin releasing hormone (CRH) testing and the clinical outcome of adrenalectomy. MATERIALS AND METHODS: Twenty-three consecutive patients with incidentally detected adrenal adenomas were included in this retrospective study. All the patients underwent abdominal computed tomography scans and hormonal assays, including assessment of circadian rhythms of plasma cortisol and corticotropin (adrenocorticotropic hormone, ACTH), a corticotropin stimulation test, and low-dose and high-dose dexamethasone tests. The patients were reevaluated at regular intervals (6, 12, and 24 months) for a median period of 24 months. Subclinical Cushing's syndrome (SCS) was diagnosed in patients with subtle hypercortisolism who did not present clinical signs of Cushing's syndrome. RESULTS: We calculated the responsive index (peak value of ACTH in CRH test/baseline value of ACTH in CRH test). Of 23 patients, 6 had Cushing's syndrome, 8 had SCS, and 9 had a non-functioning tumor. All patients underwent laparoscopic adrenalectomy. Several patients (5 of 6 with Cushing's syndrome and 2 of 8 with SCS) required cortisol replacement therapy after surgery. The remaining patients required no hormonal replacement after surgery. Those who required hormone replacement had a responsive index of less than 1.2. Those who did not need hormone replacement therapy had a responsive index of more than 2.0. CONCLUSIONS: In our limited experience, the responsive index of the CRH test might be a valuable tool for predicting the need for cortisol replacement after surgery in patients with SCS.
Adenoma
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Adrenalectomy
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Adrenocorticotropic Hormone
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Circadian Rhythm
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Corticotropin-Releasing Hormone
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Cushing Syndrome
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Dexamethasone
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Hormone Replacement Therapy
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Humans
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Hydrocortisone
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Plasma
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Retrospective Studies
10.Efficacy of edoxaban for the treatment of gynecological cancer-associated venous thromboembolism: analysis of Japanese real-world data
Suguru ODAJIMA ; Toshiyuki SEKI ; Sayako KATO ; Keisuke TOMITA ; Yuichi SHOBURU ; Eitaro SUZUKI ; Masataka TAKENAKA ; Motoaki SAITO ; Hirokuni TAKANO ; Kyosuke YAMADA ; Aikou OKAMOTO
Journal of Gynecologic Oncology 2022;33(5):e62-
Objective:
Direct oral anticoagulants (DOACs) are increasingly being used for the treatment of cancer-associated venous thromboembolism (CAT). However, there is limited evidence of the efficacy of DOACs for the treatment of gynecological CAT. Thus, this study aimed to investigate the efficacy and safety of edoxaban for the treatment of gynecological CAT using Japanese real-world data.
Methods:
We reviewed the medical records of patients with 371 gynecological cancer who received edoxaban or vitamin K antagonist (VKA) between January 2011 and December 2018.
Results:
Altogether, 211 and 160 patients were treated with edoxaban and VKA, respectively. Fourteen patients (6.8%) in the edoxaban group and 22 (13.8%) in the VKA group showed recurrence of venous thromboembolism (VTE). Cumulative VTE recurrence was not significantly different between the 2 groups (p=0.340). Adverse events occurred in 15 (7.1%) and 11 (6.9%) patients in the edoxaban and VKA groups, respectively (p=0.697). Subgroup analysis of the edoxaban and VKA groups according to different tumor types, including ovarian, endometrial, and cervical cancer, showed equivalent outcomes in terms of VTE recurrence and adverse events. Patients without pulmonary embolism (PE) were mostly omitted from initial unfractionated heparin (UFH) therapy prior to administration of edoxaban. However, this did not increase the recurrence of VTE.
Conclusion
This study confirmed that edoxaban is effective and safe for the treatment of gynecological CAT. This finding was consistent for different types of gynecological cancer. Additionally, initial UFH therapy prior to the administration of edoxaban may be unnecessary for patients without PE.