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Impaired Cholesterol Uptake Capacity in Patients with Hypertriglyceridemia and Diabetes Mellitus. J Appl Lab Med 2024:jfae024. [PMID: 38574000 DOI: 10.1093/jalm/jfae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/06/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Although low high-density lipoprotein cholesterol (HDL-C) levels are a common metabolic abnormality associated with insulin resistance, their role in cardiovascular risk stratification remains controversial. Recently, we developed a simple, high-throughput, cell-free assay system to evaluate the "cholesterol uptake capacity (CUC)" as a novel concept for HDL functionality. In this study, we assessed the CUC in patients with hypertriglyceridemia and diabetes mellitus. METHODS The CUC was measured using cryopreserved serum samples from 285 patients who underwent coronary angiography or percutaneous coronary intervention between December 2014 and May 2019 at Kobe University Hospital. RESULTS The CUC was significantly lower in diabetic patients (n = 125) than in nondiabetic patients (93.0 vs 100.7 arbitrary units (A.U.), P = 0.002). Patients with serum triglyceride (TG) levels >150 mg/dL (n = 94) also had a significantly lower CUC (91.8 vs 100.0 A.U., P = 0.004). Furthermore, the CUC showed a significant inverse correlation with TG, hemoglobin A1c (Hb A1c), homeostasis model assessment of insulin resistance (HOMA-IR), and body mass index (BMI). Finally, the HDL-C/Apolipoprotein A1 (ApoA1) ratio, calculated as a surrogate index of HDL particle size, was significantly positively correlated with the CUC (r2 = 0.49, P < 0.001), but inversely correlated with TG levels (r2 = -0.30, P < 0.001). CONCLUSIONS The CUC decreased in patients with hypertriglyceridemia and diabetes mellitus, and HDL particle size was a factor defining the CUC and inversely correlated with TG levels, suggesting that impaired CUC in insulin-resistant states was partially due to the shift in HDL towards smaller particles. These findings provide a better understanding of the mechanisms underlying impaired HDL functionality.
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Plasma cystine/methionine ratio is associated with left ventricular diastolic function in patients with heart disease. Heart Vessels 2023; 38:1422-1430. [PMID: 37620665 DOI: 10.1007/s00380-023-02302-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Elevated circulating homocysteine (Hcy) is a well-known risk factor for cardiovascular diseases (CVDs), including coronary artery disease (CAD) and heart failure (HF). It remains unclear how Hcy and its derivatives relate to left ventricular (LV) diastolic function. The aim of the present study was to investigate the relationship between plasma Hcy-related metabolites and diastolic dysfunction (DD) in patients with heart disease (HD). A total of 62 HD patients with preserved LV ejection fraction (LVEF ≥ 50%) were enrolled. Plasma Hcy and its derivatives were measured by liquid chromatography‒mass spectrometry (LC-MS/MS). Spearman's correlation test and multiple linear regression models were used to analyze the associations between metabolite levels and LV diastolic function. The cystine/methionine (CySS/Met) ratio was positively correlated with LV diastolic function, which was defined from the ratio of mitral inflow E and mitral e' annular velocities (E/e') (Spearman's r = 0.43, p < 0.001). When the subjects were categorized into two groups by E/e', the high-E/e' group had a significantly higher CySS/Met ratio than the low-E/e' group (p = 0.002). Multiple linear regression models revealed that the CySS/Met ratio was independently associated with E/e' after adjustment for age, sex, body mass index (BMI), diabetes mellitus, hypertension, chronic kidney disease (CKD), hemoglobin, and lipid peroxide (LPO) {standardized β (95% CI); 0.14 (0.04-0.23); p = 0.005}. Hcy, CySS, and Met did not show a significant association with E/e' in the same models. A high plasma CySS/Met ratio reflected DD in patients with HD.
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Inhibition of glutaminase 1-mediated glutaminolysis improves pathological cardiac remodeling. Am J Physiol Heart Circ Physiol 2022; 322:H749-H761. [PMID: 35275762 DOI: 10.1152/ajpheart.00692.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Alterations in cardiac metabolism are strongly associated with the pathogenesis of heart failure (HF). We recently reported that glutamine-dependent anaplerosis, termed glutaminolysis, was activated by H2O2 stimulation in rat cardiomyocytes, which seemed to be an adaptive response by which cardiomyocytes survive acute stress. However, the molecular mechanisms and fundamental roles of glutaminolysis in the pathophysiology of the failing heart are still unknown. Here, we treated wild-type mice (C57BL/6J) and rat neonatal cardiomyocytes (RNCMs) and fibroblasts (RNCFs) with angiotensin II (Ang II) to induce pathological cardiac remodeling. Glutaminase 1 (GLS1), a rate-limiting glutaminolysis enzyme, was significantly increased in Ang II-induced mouse hearts, RNCMs and RNCFs. Unexpectedly, a GLS1 inhibitor attenuated Ang II-induced left ventricular hypertrophy and fibrosis in the mice, and gene knockdown and pharmacological perturbation of GLS1 suppressed hypertrophy and the proliferation of RNCMs and RNCFs, respectively. Using mass spectrometry (MS)-based stable isotope tracing with 13C-labeled glutamine, we observed glutamine metabolic flux in Ang II-treated RNCMs and RNCFs. The incorporation of 13C atoms into tricarboxylic acid (TCA) cycle intermediates and their derivatives was markedly enhanced in both cell types, indicating the activation of glutaminolysis in hypertrophied heart. Notably, GLS1 inhibition reduced the production of glutamine-derived aspartate and citrate, which are required for the biosynthesis of nucleic acids and lipids, possibly contributing to the suppression of cardiac hypertrophy and fibrosis. The findings of the present study reveal that GLS1-mediated upregulation of glutaminolysis leads to maladaptive cardiac remodeling. Inhibition of this anaplerotic pathway could be a novel therapeutic approach for HF.
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Anti-PD-1 antibody monotherapy versus anti-PD-1 plus anti-CTLA-4 combination therapy as first-line immunotherapy in unresectable or metastatic mucosal melanoma: a retrospective, multicenter study of 329 Japanese cases (JMAC study). ESMO Open 2021; 6:100325. [PMID: 34839104 PMCID: PMC8633880 DOI: 10.1016/j.esmoop.2021.100325] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/29/2021] [Indexed: 01/14/2023] Open
Abstract
Background Anti-programmed cell death protein 1 (PD-1) antibody monotherapy (PD1) has led to favorable responses in advanced non-acral cutaneous melanoma among Caucasian populations; however, recent studies suggest that this therapy has limited efficacy in mucosal melanoma (MCM). Thus, advanced MCM patients are candidates for PD1 plus anti-cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) combination therapy (PD1 + CTLA4). Data on the efficacy of immunotherapy in MCM, however, are limited. We aimed to compare the efficacies of PD1 and PD1 + CTLA4 in Japanese advanced MCM patients. Patients and methods We retrospectively assessed advanced MCM patients treated with PD1 or PD1 + CTLA4 at 24 Japanese institutions. Patient baseline characteristics, clinical responses (RECIST), progression-free survival (PFS), and overall survival (OS) were estimated using Kaplan–Meier analysis, and toxicity was assessed to estimate the efficacy and safety of PD1 and PD1 + CTLA4. Results Altogether, 329 patients with advanced MCM were included in this study. PD1 and PD1 + CTLA4 were used in 263 and 66 patients, respectively. Baseline characteristics were similar between both treatment groups, except for age (median age 71 versus 65 years; P < 0.001). No significant differences were observed between the PD1 and PD1 + CTLA4 groups with respect to objective response rate (26% versus 29%; P = 0.26) or PFS and OS (median PFS 5.9 months versus 6.8 months; P = 0.55, median OS 20.4 months versus 20.1 months; P = 0.55). Cox multivariate survival analysis revealed that PD1 + CTLA4 did not prolong PFS and OS (PFS: hazard ratio 0.83, 95% confidence interval 0.58-1.19, P = 0.30; OS: HR 0.89, 95% confidence interval 0.57-1.38, P = 0.59). The rate of ≥grade 3 immune-related adverse events was higher in the PD1 + CTLA4 group than in the PD1 group (53% versus 17%; P < 0.001). Conclusions First-line PD1 + CTLA4 demonstrated comparable clinical efficacy to PD1 in Japanese MCM patients, but with a higher rate of immune-related adverse events. Anti-PD-1 plus anti-CTLA-4 antibody therapy (PD1 + CTLA4) is an option for patients with advanced mucosal melanoma (MCM). Data on the efficacy of PD1 + CTLA4 compared with PD-1 monotherapy (PD1) for MCM, however, are limited. We retrospectively analyzed data from 329 Japanese patients with advanced MCM treated with PD1 or PD1 + CTLA4. No significant differences in objective response rate, progression-free survival, or overall survival were observed. Immune-related adverse events resulting in treatment cessation were higher in the PD1 + CTLA4 group.
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Critical role of glutamine metabolism in cardiomyocytes under oxidative stress. Biochem Biophys Res Commun 2020; 534:687-693. [PMID: 33213841 DOI: 10.1016/j.bbrc.2020.11.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/05/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND Metabolic remodeling in cardiomyocytes is deeply associated with the pathogenesis of heart failure (HF). Glutaminolysis is an anaplerotic pathway that incorporates α-ketoglutarate (αKG) derived from glutamine into the tricarboxylic acid (TCA) cycle. It is well known that cancer cells depend on glutamine for their increased energy demand and proliferation; however, the physiological roles of glutamine metabolism in failing hearts remain unclear. OBJECTIVE To investigate the regulatory mechanisms and biological effects of glutamine metabolism in oxidative stress-induced failing myocardium. METHODS AND RESULTS The intracellular levels of glutamine, glutamate, and αKG were significantly decreased by H2O2 stimulation in rat neonatal cardiomyocytes (RNCMs). To better understand the metabolic flux in failing myocardium, we performed a stable isotope tracing study and found that glutaminolysis was upregulated in RNCMs under oxidative stress. Consistent with this, the enzymatic activity of glutaminase (Gls), which converts glutamine to glutamate, was augmented in RNCMs treated with H2O2. These findings suggest that glutamine anaplerosis is enhanced in cardiomyocytes under oxidative stress to compensate for the reduction of αKG. Furthermore, the inhibition of Gls reduced cardiac cell viability, ATP production, and glutathione (GSH) synthesis in RNCMs with H2O2 stimulation. Finally, we evaluated the effects of αKG on failing myocardium and observed that dimethyl α-ketoglutarate (DMKG) suppressed oxidative stress-induced cell death likely due to the enhancement of intracellular ATP and GSH levels. CONCLUSION Our study demonstrates that under oxidative stress, glutaminolysis is upregulated to compensate for the loss of αKG and its replenishment into the TCA cycle, thereby exerting cardioprotective effects by maintaining ATP and GSH levels. Modulation of glutamine metabolism in failing hearts might provide a new therapeutic strategy for HF.
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Emotion regulation processes and middle-aged Japanese women's health. Climacteric 2020; 24:200-205. [PMID: 32648773 DOI: 10.1080/13697137.2020.1784135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Emotion regulation processes, such as mindfulness, self-compassion, and acceptance, have been discussed as modifiable psychological factors related to middle-aged women's psychological distress and adjustment. Although these emotion regulation factors have been discussed separately, the question remains of which factors reflect the most variance in middle-aged women's health. Therefore, this study aimed to reveal the most relevant explanatory variable for middle-aged women's health: mindfulness, self-compassion, or acceptance. METHOD A total of 200 middle-aged women completed self-reported measures of depressive symptoms, menopausal symptoms, physical quality of life, mental quality of life, and well-being. RESULTS Correlation analysis showed that mindfulness, self-compassion, and acceptance were significantly associated with all variables of psychological distress and adjustment. Hierarchical multiple regression analysis revealed that acceptance significantly explained the most variance of depressive symptoms, menopausal symptoms, and mental quality of life. On the other hand, self-compassion significantly explained the greatest variance in well-being. CONCLUSIONS These findings suggest that, for middle-aged women, 'acceptance' is an important explanatory variable of psychological distress and 'self-compassion' is an important variable of psychological adjustment.
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Anti-PD1 checkpoint inhibitor therapy in acral melanoma: a multicenter study of 193 Japanese patients. Ann Oncol 2020; 31:1198-1206. [PMID: 32522691 DOI: 10.1016/j.annonc.2020.05.031] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 05/28/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Acral melanoma (AM) is an epidemiologically and molecularly distinct entity that is underrepresented in clinical trials on immunotherapy in melanoma. We aimed to analyze the efficacy of anti-programmed cell death 1 (anti-PD-1) antibodies in advanced AM. PATIENTS AND METHODS We retrospectively evaluated unresectable stage III or stage IV AM patients treated with an anti-PD-1 antibody in any line at 21 Japanese institutions between 2014 and 2018. The clinicobiologic characteristics, objective response rate (ORR, RECIST), survival estimated using Kaplan-Meier analysis, and toxicity (Common Terminology Criteria for Adverse Events 4.0.) were analyzed to estimate the efficacy of the anti-PD-1 antibodies. RESULTS In total, 193 patients (nail apparatus, 70; palm and sole, 123) were included in the study. Anti-PD-1 antibody was used as first-line therapy in 143 patients (74.1%). Baseline lactate dehydrogenase (LDH) was within the normal concentration in 102 patients (52.8%). The ORR of all patients was 16.6% (complete response, 3.1%; partial response, 13.5%), and the median overall survival (OS) was 18.1 months. Normal LDH concentrations showed a significantly stronger association with better OS than abnormal concentrations (median OS 24.9 versus 10.7 months; P < 0.001). Although baseline characteristics were similar between the nail apparatus and the palm and sole groups, ORR was significantly lower in the nail apparatus group [6/70 patients (8.6%) versus 26/123 patients (21.1%); P = 0.026]. Moreover, the median OS in this group was significantly poorer (12.8 versus 22.3 months; P = 0.03). CONCLUSIONS Anti-PD-1 antibodies have limited efficacy in AM patients. Notably, patients with nail apparatus melanoma had poorer response and survival, making nail apparatus melanoma a strong candidate for further research on the efficacy of novel combination therapies with immune checkpoint inhibitors.
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Imatinib Dramatically Improved Pulmonary Hypertension Caused by Pulmonary Tumor Thrombotic Microangiopathy (PTTM) Associated with Metastatic Breast Cancer. Int Heart J 2020; 61:624-628. [PMID: 32350209 DOI: 10.1536/ihj.19-556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare malignancy-related respiratory complication, showing rapid progression of respiratory dysfunction and pulmonary hypertension (PH). Accumulating evidence suggests that imatinib, a platelet-derived growth factor (PDGF) receptor-tyrosine kinase inhibitor, might be effective and improve severe PH in patients with PTTM associated with gastric cancer. However, its efficacy in PTTM with breast cancer is generally believed as very limited. We experienced a rare case of PTTM associated with metastatic breast cancer, a rare case who were treated with imatinib, exhibiting significant improvement of respiratory dysfunction and PH.
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Hepatobiliary and Pancreatic: AL amyloidosis presented as a hematoma in the hepatoduodenal ligament. J Gastroenterol Hepatol 2019; 34:1897. [PMID: 31342544 DOI: 10.1111/jgh.14744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/26/2019] [Indexed: 12/09/2022]
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Primary analysis results of randomized controlled trial evaluating reactive topical corticosteroid strategies for the facial acneiform rash by EGFR inhibitors (EGFRIs) in patients (pts) with RAS wild-type (wt) metastatic colorectal cancer (mCRC): FAEISS study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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COMPREHENSIVE SIMPLIFIED LEFT ATRIAL ASSESSMENT FOR PREDICTING RECURRENCE OF ATRIAL FIBRILLATION FOLLOWING PULMONARY VEIN ISOLATION IN PATIENTS WITH PAROXYSMAL ATRIAL FIBRILLATION. J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)32111-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Inferior vena cava (IVC) thrombosis is very rare, particularly in the absence of an apparent congenital caval abnormality or hypercoagulable state. We herein report an unusual case of a healthy and active 62-year-old male bodybuilder with a mass-like IVC thrombus. We placed an IVC filter and began treatment with rivaroxaban. The patient recovered successfully, and the IVC thrombus completely disappeared three months later. This case suggested that extrinsic compression of IVC by a tightened weightlifting belt around the abdomen is a triggering factor of IVC thrombosis, and rivaroxaban, a new oral anticoagulant, may be a useful option for treatment.
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Important of continuous body measurement for preventing malnutrition, sarcopenia and frailty in hemodialysis patients. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Laser energy absorption coefficient and in-situ temperature measurement of laser-melted tungsten. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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559 Epidemiology of malignant melanoma in Japan: Analysis of 4239 patient data. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Acute pulmonary edema in patients with reduced left ventricular ejection fraction is associated with concentric left ventricular geometry. Int J Cardiovasc Imaging 2017; 34:185-192. [PMID: 28770454 DOI: 10.1007/s10554-017-1218-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 07/22/2017] [Indexed: 10/19/2022]
Abstract
Although acute pulmonary edema (APE) is common in patients with heart failure (HF) with preserved ejection fraction (EF), its pathogenesis in patients with HF with reduced EF (HFrEF) is not completely understood. The purpose of our study was to explore the contributions of left ventricular (LV) geometry to understand the difference between HFrEF patients with or without APE. We studied 122 consecutive acute decompensated HF patients with HFrEF (≤40%). APE was defined as acute-onset dyspnea and radiographic alveolar edema requiring immediate airway intervention. LV geometry was determined from a combination of the LV mass index and relative wall thickness (RWT). Long-term unfavorable outcome events were tracked during a follow-up of a median of 21 months (interquartile range, 10-28 months), during which APE was observed in 29 patients (24%). Compared to those without APE, hospitalized patients with APE had a higher systolic blood pressure, RWT, and LVEF and lower end-diastolic dimension. Among echocardiographic variables, a multivariate logistic regression analysis identified RWT as the only independent determinant of APE (hazard ratio: 2.46, p < 0.001). Those with concentric geometry (n = 25; RWT > 0.42) had a higher incidence of APE relative to those with non-concentric geometry. Furthermore, among patients with APE, mortality was significantly higher among those with concentric geometry (log-rank, p = 0.008). Compared with non-concentric geometry, concentric geometry (increased RWT, not LV mass) was strongly associated with APE onset and a poorer outcome among APE patients. An easily obtained echocardiographic RWT index may facilitate the risk stratification of patients.
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394P A self-controlled trial of prophylactic topical application of vitamin K1 cream for cetuximab-related skin rash. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv531.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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346PD Evaluation of safety, tolerability, pharmacokinetics (PK) and efficacy of dabrafenib and trametinib combination (Dab + Tra) therapy in Japanese patients (pts) with BRAF V600 mutation-positive advanced cutaneous melanoma: a phase (Ph) I/II study. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv528.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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1616 A double blind, self-controlled randomized trial of prophylactic topical vitamin K1 cream application for cetuximab-related skin toxicity (VANQUISH trial). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30704-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pelvic organ cross-sensitization to enhance bladder and urethral pain behaviors in rats with experimental colitis. Neuroscience 2014; 284:422-429. [PMID: 25445197 DOI: 10.1016/j.neuroscience.2014.08.064] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/19/2014] [Accepted: 08/26/2014] [Indexed: 12/12/2022]
Abstract
Neural cross-sensitization has been postulated as a mechanism underlying overlaps of chronic pelvic pain disorders such as bladder pain syndrome/interstitial cystitis (BPS/IC) and irritable bowel syndrome (IBS). Animals with experimental colitis have been used to study the underlying mechanisms for overlapped pelvic pain symptoms, and shown to exhibit bladder overactivity evidenced by frequent voiding; however, it has not directly been evaluated whether pain sensation derived from the lower urinary tract is enhanced in colitis models. Also, the cross-sensitization between the colon and urethra has not been studied previously. In the present study, we therefore investigated pain behaviors induced by nociceptive stimuli in the lower urinary tract and the involvement of C-fiber afferent pathways using rats with colitis induced by intracolonic application of 2,4,6-trinitrobenzenesulfonic acid (TNBS). In TNBS-induced colitis rats at 10 days, intravesical application of resiniferatoxin (RTx) induced a significantly greater number of episodes of both licking and freezing behaviors, which were reduced by capsaicin-sensitive C-fiber afferent desensitization. Histochemical studies using fluorescent dye tracers injected into the colon, bladder or urethra showed that dichotomized afferent neurons comprised 6.9-14.5% of L1, L6 and S1 dorsal root ganglion (DRG) neurons innervating the colon or the lower urinary tract. Transient receptor potential vanilloid 1 (TRPV1) mRNA expression was significantly increased in, the bladder, urethra and S1 DRG in colitis rats. An increase in myeloperoxidase (MPO) activity was found in the colon, but not in the bladder or urethra after intracolonic TNBS treatment. These results indicate that TNBS-induced colitis increased pain sensitivity in the bladder and urethra via activation of C-fiber afferent pathways due to colon-to-bladder and colon-to-urethral cross-sensitization, suggesting the contribution of pelvic organ cross-sensitization mechanisms to overlapped pain symptoms in BPS/IC and IBS.
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Evaluation of Safety, Tolerability, Pharmacokinetics and Efficacy of Dabrafenib, a Braf Inhibitor, in Japanese Patients with Braf V600 Mutation-Positive Advanced Solid Tumors: a Phase I Study. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu344.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Clinical experience using a combination of PGA sheet and spraying of fibrin glue to cover partial resection of buccal mucosa carcinoma. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Evaluation of genetic introgression from domesticated pigs into the Ryukyu wild boar population on Iriomote Island in Japan. Anim Genet 2014; 45:517-23. [PMID: 24754898 DOI: 10.1111/age.12157] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2014] [Indexed: 11/30/2022]
Abstract
We evaluated genetic introgression from domesticated pigs into the Ryukyu wild boar (RWB) population on Iriomote Island based on their genetic structure and diversity. We used a combination of mitochondrial DNA D-loop region (596 bp) polymorphisms and 23 microsatellite markers. RWBs (n = 130) were collected from 18 locations on Iriomote Island and compared with 66 reference samples of European and Asian domestic pigs. We identified six distinct haplotypes, involving 22 single nucleotide polymorphisms (including one insertion) in the RWB population. The phylogenetic tree had two branches: the RWB group and domestic lineage. Fourteen of 130 RWBs (10.8%) belonged to the European domestic lineage, including 11 RWBs from the Panari Islands, northwest of Iriomote Main Island (IMI). The heterozygosity values, total number of alleles, number of effective alleles and polymorphism information content of the RWB groups were lower than those of the European domestic groups. The RWB population on IMI had a lower heterozygous deficiency index (FIS = 0.059) than did the other populations, which indicates that this population was more inbred. There was a large genetic distance (FST = 0.560) between RWBs on IMI and the Meishan populations. Structure analysis using the 23 microsatellite markers revealed that 16 RWBs had an admixture pattern between RWB and domesticated pig breeds. These results suggest that gene flow may have occurred from domestic pigs to RWBs and demonstrate that there was low genetic variation in the IMI population.
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Selective blockade of apoptosis by in vivo electroporation-mediated gene transfer combined with portal infusion of plasmid DNA attenuates liver cirrhosis. MINERVA CHIR 2012; 67:249-255. [PMID: 22691829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIM The purpose of the present study was to determine whether in vivo electroporation could achieve selective blockade of apoptosis in a rat liver cirrhosis model. METHODS A dimethylnitrosamine (DMN)-induced rat liver cirrhosis model was used. In vivo electroporation was performed after portal vein infusion of plasmid DNA. pFas-Fc plasmid DNA was used to block the apoptotic pathway. pUC/HGF and pCAGGS/EGFP were used as positive and negative controls, respectively. Liver collagen content was evaluated by hydroxyproline assay two weeks after gene transfer. Terminal deoxynucleotidyltransferase dUTP nick end-labeling was simultaneously performed in the liver to evaluate suppression of apoptosis. Survival analysis was performed using 10 rats that received the sFas gene, 10 that received the HGF gene, and 13 that received the GFP gene. RESULTS The apoptotic cell index in the DMN-injected liver was significantly lower in rats that received the sFas gene compared with the negative control. The collagen content of the DMN-injected liver was also lower in rats that received the sFas gene compared with the negative control. There was no significant difference in the apoptotic cell index and collagen content of rats that received the sFas and HGF genes. Ten weeks after the initiation of DMN treatment, the survival rates with the sFas, HGF, and GFP genes were 56%, 100%, and 0, respectively. CONCLUSION Selective blockade of apoptosis by in vivo electroporation-mediated gene transfer improved the apoptotic cell index, hydroxyproline content, and survival rate. Soluble Fas gene therapy using in vivo electroporation can be a safe and efficient therapy for liver cirrhosis in rats.
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Structural basis for the altered drug sensitivities of non-small cell lung cancer-associated mutants of human epidermal growth factor receptor. Oncogene 2012; 32:27-38. [DOI: 10.1038/onc.2012.21] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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The effect of adaptive iterative dose reduction on image quality in 320-detector row CT coronary angiography. Br J Radiol 2012; 85:e378-82. [PMID: 22253355 DOI: 10.1259/bjr/10084599] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate the effect of adaptive iterative dose reduction (AIDR) on image noise and image quality as compared with standard filtered back projection (FBP) in 320-detector row CT coronary angiography (CTCA). METHODS 50 patients (14 females, mean age 68 ± 9 years) who underwent CTCA (100 kV or 120 kV, 400-580 mA) within a single heartbeat were enrolled. Studies were reconstructed with FBP and subsequently AIDR. Image noise, vessel contrast and contrast-to-noise ratio (CNR) in the coronary arteries were evaluated. Overall image quality for coronary arteries was assessed using a five-point scale (1, non-diagnostic; 5, excellent). RESULTS All the examinations were performed in a single heartbeat. Image noise in the aorta was significantly lower in data sets reconstructed with AIDR than in those reconstructed with FBP (21.4 ± 3.1 HU vs 36.9 ± 4.5 HU; p<0.001). No significant differences were observed between FBP and AIDR for the mean vessel contrast (HU) in the proximal coronary arteries. Consequently, CNRs in the proximal coronary arteries were higher in the AIDR group than in the FBP group (p<0.001). The mean image quality score was improved by AIDR (3.75 ± 0.38 vs 4.24 ± 0.38; p<0.001). CONCLUSION The use of AIDR reduces image noise and improves image quality in 320-detector row CTCA.
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[Palliative care workshop primarily aimed for physicians and nurses in order to improve the care of the end-of- life homecare patient]. Gan To Kagaku Ryoho 2011; 38 Suppl 1:82-84. [PMID: 22189329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Since 2008, we held a palliative care workshop primarily aimed for physicians, who engaged in clinical practice for cancer treatment. In order to improve the end-of-life stage patient care at home, we made all sorts of efforts not only for physicians, but we also made a workshop available for healthcare professionals to participate. There were more than 60 people participated the workshop: our 20% of physicians and 24% of nurses, 13% of nearby hospital and clinic physicians, 12% of pharmacists and 17% of nurses. According to our questionnaire survey, more than 90% of the participants were satisfied with the workshop. Only 8% of the participants expressed that the workshop was rather difficult. From our analysis of the results, it was clear that we attained a high level of participants' satisfaction.
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High-resolution analysis and anomalous dispersion analysis of bovine cytochrome coxidase. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311093378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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30
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SR beamline for macromolecular assemblies by the Institute for Protein Research. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311091082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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31
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Structural changes of bovine cytochrome coxidase dependent on the redox states. Acta Crystallogr A 2011. [DOI: 10.1107/s010876731109338x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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[The experiences of elderly patients' successful resumption of oral ingestion with home parenteral nutrition and multi-professional team approach]. Gan To Kagaku Ryoho 2010; 37 Suppl 2:218-220. [PMID: 21368529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
There are many elderly patients with poor oral intake when they are hospitalized with pneumonia or urinary tract infection, and we often need to consider their proper feeding method, such as percutaneous endoscopic gastrostomy(PEG)or total parenteral nutrition(TPN). However, it is difficult to receive homecare services for patients who rely highly upon medical treatment. Meanwhile, a prolonged hospitalization is a serious social problem. Here, we report two cases of elderly patients who were able to eat because home parenteral nutrition care and seamless approach were provided by multi-professional team.
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[For the seamless care of home ALS patient on a mechanical ventilator--the importance of reducing the sputum]. Gan To Kagaku Ryoho 2010; 37 Suppl 2:213-214. [PMID: 21368527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Recently, many of the ALS patients on mechanical ventilator have been shifting to home based care from hospitals, and these ALS patients are increasing in trend. In doing a seamless transition from hospital to home based care, it is important that the burden of the family caregiver should be reduced while the patient is still in the hospital prior to discharge. We experienced one ALS patient on ventilator who could be cared at home smoothly by several measures for a reduction of sputum. The following procedural measures are thought to be efficient: 1 set the tidal volume of ventilator rather high, 2 treat the underlying lung disease for the cause of sputum increase, and 3 keep a good sleep to prevent a sputum increase in the night by the patient's body movements.
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[Infection control measures for multidrug-resistant Pseudomonas aeruginosa (MDRP) carrier at home--a trial production of infection control manual of our hospital]. Gan To Kagaku Ryoho 2009; 36 Suppl 1:138-140. [PMID: 20443428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
It is thought that there is no effective traditional antibiotic therapy for MDRP, and a prevention of its transmission is the most important strategy for controlling infection. In practicing standard precautions for MDRP patients at home, we noticed some sort of anxiety and confusion among the healthcare workers and family caregivers. We made our experimental manual and unified our procedures for MDRP carriers at home to reduce such problems. Consequently, healthcare workers' stress was alleviated and the teamwork could be enhanced better. We think that it is significant to make a common manual for MDRP control to improve mutual understandings and to have a better cooperation among the concerned home care workers.
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[Three cases of live-alone patients received an end-of-life care at home]. Gan To Kagaku Ryoho 2009; 36 Suppl 1:26-27. [PMID: 20443391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Many people hope to receive an end-of-life care at home. Due to the trend toward the nuclear family and aging society, most people, however, would end up in medical institutions. The low ADLs of patients, in addition to medical treatment such as home oxygen therapy and intravenous injection, make it difficult to spend an end-of-life care at home alone. We have experienced and reported here three cases of live-alone patients who could remain at home owing to the evaluation of domestic care ability by a Home Care Score and the appropriate introduction of social health care services.
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36
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High Dose Proton Beam Therapy for Mucosal Malignant Melanoma of the Head and Neck. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Reduction of the total injection volume of contrast material with a short injection duration in 64-detector row CT coronary angiography. Br J Radiol 2009; 83:35-9. [PMID: 19505968 DOI: 10.1259/bjr/23203690] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The ability of short injection duration of contrast material to reduce the total injection volume in 64-detector row CT coronary angiography was investigated. 45 patients were divided into three groups: (i) those receiving 0.8 ml kg(-1) of contrast material (350 mgI ml(-1)) injected with a fixed duration of 14 s (Group A; n = 16); (ii) those receiving 0.8 ml kg(-1) of contrast material injected with a fixed duration of 10 s (Group B; n = 15); and (iii) those receiving 0.7 ml kg(-1) of contrast material injected with a fixed duration of 10 s (Group C; n = 14). All patients then received 20 ml of saline. Contrast densities of the ascending aorta and proximal and distal coronary arteries were assessed where vessel diameters were >2.0 mm. The mean enhancement value in the ascending aorta for Group B was significantly higher than that for Groups A and C (p<0.05), whereas there was no significant difference between Groups A and C. All enhancement values in the coronary arteries were higher than 250 Hounsfield units. The mean enhancement value for each coronary artery in Group B was significantly higher than that for Group A (p<0.05), whereas there was no significant difference between Groups A and C. In conclusion, a short injection duration allows a reduction in the total volume of contrast material from 0.8 ml kg(-1) to 0.7 ml kg(-1) while a steady contrast enhancement is maintained in the ascending aorta and coronary arteries.
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Poster Session 4: Miscellaneous. Europace 2009. [DOI: 10.1093/europace/euq239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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39
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[Three elderly patient cases maintained by home hypodermoclysis--a practical hydrating method performed by family members]. Gan To Kagaku Ryoho 2008; 35 Suppl 1:85-87. [PMID: 20443317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hypodermoclysis, the subcutaneous infusion of fluids, has been reevaluated as a useful hydration technique for elderly patients. In the care of end-of-life elderly patients who are unable to take adequate fluids orally, hypodermoclysis is a less stressful means for patients and family than an intravenous hydration. Further more, it shortens the duration of hospitalization. We report three cases of patients who could remain at home stably for a relatively long period of time because of hypodermoclysis administered by family members.
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[A case report of a patient whose sputum culture of multidrug-resistant Pseudomonas aeruginosa (MDRP) disappeared after administration of green tea by gastric tube]. Gan To Kagaku Ryoho 2008; 35 Suppl 1:77-79. [PMID: 20443314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
It costs a lot of burden to take care of MDRP carriers at home as well as preventing MDRP transmission to caregivers. It is reported that epigallocatechin gallate (EGCG), the most abundant chemical contained in tea catechin, is chemically similar to trimethoprim (TMP) and inhibits S. maltophilia growth by antifolate acitivity. In this report, we present a case of a patient, whose sputum culture of MDRP disappeared after a green tea administration by gastric tube. We thought that catechin escaped from a drug efflux mechanism(s) of MDRP and could act on its growth.
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The skewed heavy-chain repertoire in peritoneal B-1 cells is predetermined by the selection via pre-B cell receptor during B cell ontogeny in the fetal liver. Int Immunol 2008; 21:43-52. [DOI: 10.1093/intimm/dxn122] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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X-ray structure of carbon monoxide at copper site of the dinuclear site of cytochrome coxidase. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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43
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High-resolution diffraction experiment of bovine cytochrome c oxidase. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308088181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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44
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Structural analysis for lipid/protein interactions in bovine heart cytochrome coxidase. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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45
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X-ray crystal structural analysis of cyanide-binding cytochrome coxidase. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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46
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X-ray structural analysis of zinc/cadmium inhibitory site in bovine heart cytochrome coxidase. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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47
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IPR beamline for macromolecular assemblies at SPring-8. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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48
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Depositional records of plutonium and (137)Cs released from Nagasaki atomic bomb in sediment of Nishiyama reservoir at Nagasaki. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2008; 99:211-217. [PMID: 18171596 DOI: 10.1016/j.jenvrad.2007.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Revised: 11/08/2007] [Accepted: 11/10/2007] [Indexed: 05/25/2023]
Abstract
In a sediment core of Nishiyama reservoir at Nagasaki city, depth profiles of (240)Pu/(239)Pu isotopic ratio, (239+240)Pu and (137)Cs activities were determined. Sediments containing plutonium and (137)Cs, which were deposited immediately after a detonation of Nagasaki atomic bomb, were identified in the core. Observed below the sediments were macroscopic charcoals, providing evidence for initial deposit of the fallout of the Nagasaki atomic bomb. This is the first entire depositional records of plutonium and (137)Cs released from the Nagasaki atomic bomb together with those from atmospheric nuclear tests.
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Abstract
Inositol 1,4,5-trisphosphate (InsP3) is a second messenger that releases Ca2+ from its intracellular stores. The InsP3 receptor has been purified and its cDNA has been cloned. We have found that the InsP3 receptor is identical to P400 protein, first identified as a protein enriched in cerebellar Purkinje cells. We have generated an L-fibroblast cell transfectant that produces cDNA-derived InsP3 receptors. The protein displays high affinity and specificity for InsP3. InsP3 induces greater Ca2+ release from membrane vesicles from transfected cells than from those from control L-fibroblasts. After incorporation of the purified InsP3 receptor into lipid bilayers InsP3-induced Ca2+ currents were demonstrated. These results suggest that the InsP3 receptor is involved in physiological Ca2+ release. Immunogold labelling using monoclonal antibodies against the receptor showed that it is highly concentrated on the smooth-surfaced endoplasmic reticulum and slightly on the outer nuclear membrane and rough endoplasmic reticulum; no labelling of Golgi apparatus, mitochondria and plasmalemma was seen. Cross-linking experiments showed that the receptor forms a homotetramer. The approximately 650 N-terminal amino acids are highly conserved between mouse and Drosophila, and this region contains the critical sequences for InsP3 binding. We have investigated the heterogeneity of the InsP3 receptor using the polymerase chain reaction and have found novel subtypes of the mouse InsP3 receptor that are expressed in a tissue-specific and developmentally specific manner.
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Geographical distribution of plutonium derived from the atomic bomb in the eastern area of Nagasaki. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-0733-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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