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Masuda T, Ishii K, Hosoya T, Tanaka R, Nakayama T, Iwasaki N, Shibata Y, Tamaoka A. Non-proportional accumulation of diphenylarsinic acid in the central nervous system following subchronic administration to rats. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mishina T, Aiba T, Hiramatsu K, Shibata Y, Yoshihara M, Aoba T, Yamaguchi N, Kato T. Comparison between dexmedetomidine and midazolam as a sedation agent with local anesthesia in inguinal hernia repair: randomized controlled trial. Hernia 2017; 22:471-478. [PMID: 28965137 DOI: 10.1007/s10029-017-1680-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 09/24/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE In Japan, inguinal hernia repair is widely performed with local anesthesia. The objective of this study was to evaluate safety and efficacy of intravenous dexmedetomidine as a sedation agent with local anesthesia in inguinal hernia repair. METHODS We performed this randomized, single-blind study for 200 patients who were scheduled to undergo inguinal hernia repair with local anesthesia. Patients were randomly divided into two groups (dexmedetomidine group: Group D, midazolam group: Group M). The primary outcome was to evaluate the safety of intravenous dexmedetomidine. Secondary outcomes were to analyze results of operators' surveys and patients' questionnaires and evaluate implementation of conscious sedation. RESULTS Incidence of respiratory depression was significantly higher in Group M than Group D (p = 0.03). Other adverse events examined did not differ significantly. All three operators' questionnaires indicated that results were better in Group D than Group M. More than 70% of patients in both groups were satisfied with the surgery. More than 80% of Group D patients and 74% of Group M patients achieved a state of conscious sedation. CONCLUSION This study demonstrated that intravenous dexmedetomidine during hernia repair with local anesthesia is safe and the results were satisfactory to both operators and patients.
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Uchikawa M, Shibata Y, Tohyama H, Mori H, Aisaka K, Nakagawa M. A Case of Hemolytic Disease of the Newborn Due to
Anti-Di^b Antibodies. Vox Sang 2017. [DOI: 10.1159/000460854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Koiwaya H, Watanabe N, Ashikaga K, Nishino S, Ogata K, Nakama T, Matsuura H, Furugen M, Kuriyama N, Shibata Y. P4301Which should we choose as the anticoagulants for atrial fibrillation patients with coronary stenting? Warfarin vs. non-vitamin K-antagonist oral anticoagulants. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4301] [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: 11/14/2022] Open
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Kunimura A, Ishii H, Aoki T, Hirayama K, Harada K, Sumi T, Shibata Y, Negishi Y, Kawashima K, Tatami Y, Kawamiya T, Yamamoto D, Suzuki S, Amano T, Murohara T. P1548Impact of nutritional and inflammatory status on cardiovascular outcomes in patients with stable coronary artery disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1548] [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: 11/13/2022] Open
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Koiwaya H, Watanabe N, Kuriyama N, Nishino S, Ogata K, Nakama T, Matsuura H, Furugen M, Shibata Y. P2072Independent predictors of the recurrent restenosis after paclitaxel-coated balloon angioplasty for in-stent restenosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2072] [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: 11/12/2022] Open
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Zakaria MN, Furuta M, Takeshita T, Shibata Y, Sundari R, Eshima N, Ninomiya T, Yamashita Y. Oral mycobiome in community-dwelling elderly and its relation to oral and general health conditions. Oral Dis 2017; 23:973-982. [PMID: 28419681 DOI: 10.1111/odi.12682] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 03/31/2017] [Accepted: 04/11/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Oral fungal infection is generally associated with dysbiosis related to antibiotic use, immunodeficiency, or frailty. However, fungal colonization in a typical population without apparent symptoms and its associated conditions are poorly understood. In this study, oral fungal colonization in community-dwelling and independently living elderly populations was evaluated and factors affecting fungal colonization were analyzed. SUBJECTS AND METHODS The subjects (410; 181 males and 229 females) were 75-99 years of age; those under prior antibiotic use were excluded. Fungal populations in the saliva were evaluated by PCR-based molecular techniques. Body mass index (BMI), smoking habits, and oral health conditions were examined. RESULTS Salivary fungal amounts exceeded 104 CFU/ml in 63 (15.4%) of 410 subjects. Candida albicans was most frequently detected (98.4%), followed by Candida glabrata (54.0%), and Candida dubliniensis (38.1%) in those subjects with fungi at 104 CFU/ml or over. Fungi at 104 CFU/ml or over in the presence of C. glabrata or C. dubliniensis was significantly associated with low BMI. CONCLUSIONS Candida albicans, C. glabrata, and C. dubliniensis dominated the oral mycobiome in Japanese community-dwelling elderly. Lower BMI might signify compromised health status and thus could result in susceptibility to specific candidiasis by C. glabrata and C. dubliniensis.
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Fujii T, Shibata Y, Ban Y, Shitaokoshi A, Nishiwaki K. Catheterization in an ultrasound-guided thoracic paravertebral block using thoracoscopy. Asian J Anesthesiol 2017; 55:24-25. [PMID: 28846539 DOI: 10.1016/j.aja.2017.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/30/2016] [Accepted: 01/12/2017] [Indexed: 11/28/2022]
Abstract
Thoracic paravertebral block (TPVB) is an efficient alternative to epidural anesthesia. The location of a catheter within the thoracic paravertebral space (TPVS) has been examined in the human cadaver studies, but it is unclear how it goes into the TPVS during catheterization. In this report, thoracoscopy was used to observe the thoracic cavity in real-time during a parasagittal in-plane approach of ultrasound-guided TPVB. During thoracoscopy, we observed whether a paravertebral catheter could be advanced caudally beyond the ribs into the neighboring TPVS. Our result demonstrated that the catheter was difficult to be advanced beyond the ribs and confined within the same level of TPVS as where it was inserted. In the previous thoracoscopic observation of the paravertebral spread, we assumed that the local anesthetic acts most strongly at the intercostal level of the injection. Therefore, we recommend to insert the catheter for TPVB at the level corresponding to the incision site of thoracotomy.
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Nakamura M, Sugiura M, Shibata Y, Ojima T. Effect of β-cryptoxanthin–rich Satsuma mandarin juice supplementation on pulse wave velocity: A randomized controlled trial. JOURNAL OF NUTRITION & INTERMEDIARY METABOLISM 2017. [DOI: 10.1016/j.jnim.2017.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Benkreira H, Shibata Y, Ito K. Reverse roll coating with a deformable roll operating at negative gaps. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.02.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hoshikawa M, Kato A, Hojo H, Shibata Y, Kumamoto N, Watanabe M, Ugawa S. Distribution of ASIC4 transcripts in the adult wild-type mouse brain. Neurosci Lett 2017; 651:57-64. [PMID: 28461138 DOI: 10.1016/j.neulet.2017.03.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/21/2017] [Accepted: 03/21/2017] [Indexed: 01/27/2023]
Abstract
Acid-sensing ion channel 4 (ASIC4) belongs to the ASIC gene family of neuronal proton-gated cation channels, and is the least understood subtype among the members. Previous studies of ASIC4 expression in the mammalian central nervous system have shown that ASIC4 is abundantly expressed in the spinal cord and in various brain regions, such as the cerebral cortex, the hippocampus, and the cerebellum. However, the detailed distribution of ASIC4 transcripts in mammalian brains still remains to be elucidated. In the present study, radioactive in situ hybridization histochemistry with an ASIC4-specific cRNA probe was performed on wild-type mouse brains, followed by X-gal staining experiments with Asic4-lacZ reporter mice Asic4tm1a(KOMP)Mbp. It was found that ASIC4 mRNAs were widely expressed throughout the wild-type brain, but preferentially concentrated in the olfactory bulb, the piriform cortex, the caudate putamen, the preoptic area, the paraventricular nucleus, the medial habenular nucleus, the pretectal area, the lateral geniculate nucleus, the amygdaloid complex, the superior colliculus, the interpeduncular nucleus, and the granule cell layer of the ventral hippocampus, and these results were in agreement with the X-gal-positive reactions observed in the mutant brain. In addition, X-gal staining combined with immunohistochemistry identified intense signals for ASIC4 transcriptional activity in most of the choline acetyltransferase (ChAT)-positive principal neurons located in the basal forebrain cholinergic nuclei. Our data provide useful information to speculate possible roles of ASIC4 in diverse brain functions.
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Okabe Y, Takeuchi K, Izumi M, Furuta M, Takeshita T, Shibata Y, Kageyama S, Ganaha S, Yamashita Y. Posterior teeth occlusion and dysphagia risk in older nursing home residents: a cross-sectional observational study. J Oral Rehabil 2017; 44:89-95. [DOI: 10.1111/joor.12472] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2016] [Indexed: 11/29/2022]
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Shibata Y, Yamamoto H, Miyazaki T. Colloidal β-Tricalcium Phosphate Prepared by Discharge in a Modified Body Fluid Facilitates Synthesis of Collagen Composites. J Dent Res 2016; 84:827-31. [PMID: 16109992 DOI: 10.1177/154405910508400909] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The development of hydroxyapatite/collagen composites that are naturally synthesized and need no additional treatment is required for use in bone repair. Since reducing the diameter can increase the specific surface area of calcium phosphate particles that can conjugate collagen molecules, we expected colloidal calcium phosphates of submicron diameter obtained by discharge to be effective in formulating these composites. Additionally, since biodegradable β-tricalcium phosphate has better osteoconductivity than hydroxyapatite, this study aimed to investigate the synthesis of colloidal hydroxyapatite and β-tricalcium phosphate/collagen composites. Collagen molecules were tightly polymerized in the β-tricalcium phosphate/collagen composite by catalysis of the generated -P-O-P- polyphosphate chain. Bonding strength between collagen NH+ amino groups and -P-O-P-, and cross-linking of the Ca++-RCOO− in the collagen were increased compared with those in the hydroxyapatite/collagen composite. These chemical reactions due to colloidal β-tricalcium phosphate might play a key role in the synthesis of collagen composites.
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Shibata Y, Kawai H, Yamamoto H, Igarashi T, Miyazaki T. Antibacterial Titanium Plate Anodized by being Discharged in NaCl Solution Exhibits Cell Compatibility. J Dent Res 2016; 83:115-9. [PMID: 14742647 DOI: 10.1177/154405910408300206] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Implant surfaces should be modified to achieve excellent cell compatibility as well as antibacterial activity. Our previous study demonstrated that titanium plates anodized by being discharged in NaCl (Ti-Cl) exhibited high antibacterial activity. Since Ti-Cl was prepared with a NaCl solution, we hypothesized that Ti-Cl would exhibit low toxicity toward cells. The aims of this study were to characterize the surface of Ti-Cl and investigate the cell compatibility (MC3T3-E1 and L929 cells) of Ti-Cl. The results demonstrated that, since the TiCl3 formed on the Ti-Cl surface was hydrolyzed into HCl, HClO, and TiOH after immersion in pure distilled water, TiCl3 contributed to the antibacterial activity of Ti-Cl. On the other hand, TiO formed on the Ti-Cl surface enhanced cell extension and cell growth through a larger adsorption of fibronectin compared with the pure titanium control. These findings suggest that antibacterial titanium is a promising material for use in dental implant systems.
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Irie H, Ito K, Kataoka Y, Fujioka Y, Oguchi K, Shimamura T, Kawai Y, Sagara T, Shibata Y, Araki H, Haruma T, Hashimoto A, Matsuo K, Utsugi T, Iwasawa Y. TPC-107, a next generation, HER2 selective covalent inhibitor demonstrates potent and sustained inhibition against the HER2–HER3 signaling while sparing EGFR activity, leading to a large therapeutic window. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32658-2] [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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Miyoshi Y, Uemura H, Suzuki K, Shibata Y, Honma S, Harada M, Kubota Y. High serum dihydrotestosterone examined by ultrasensitive LC-MS/MS as a predictor of benign prostatic hyperplasia or Gleason score 6 cancer in men with prostate-specific antigen levels of 3-10 ng/mL. Andrology 2016; 5:262-267. [PMID: 27813361 DOI: 10.1111/andr.12294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/03/2016] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Abstract
There has been no consensus on the role of serum androgen concentrations in prostate cancer detection in men with prostate-specific antigen levels of 3-10 ng/mL. In this study, testosterone and dihydrotestosterone concentrations in blood were examined by a newly developed method using ultrasensitive liquid chromatography with two serially linked mass spectrometers (LC-MS/MS). We investigated the correlation between serum androgen levels and Gleason scores at biopsy. We analyzed data of 157 men with a total prostate-specific antigen range of 3-10 ng/mL who underwent initial systematic prostate needle biopsy for suspected prostate cancer between April 2000 and July 2003. Peripheral blood testosterone and dihydrotestosterone concentrations were determined by LC-MS/MS. Blood levels of testosterone and dihydrotestosterone were compared with pathological findings by multivariate analyses. Median values of prostate-specific antigen and prostate volume measured by ultrasound were 5.7 ng/mL and 31.4 cm3 , respectively. Benign prostatic hyperplasia was diagnosed in 97 patients (61.8%), and prostate cancer was diagnosed in 60 (38.2%) patients, including 31 (19.7%) patients with a Gleason score of 6 and 29 (18.5%) patients with a Gleason score of 7-10. Median values of testosterone and dihydrotestosterone in blood were 3798.7 and 371.7 pg/mL, respectively. There was a strong correlation between serum testosterone and dihydrotestosterone. In multivariate analysis, age, prostate volume, and serum dihydrotestosterone were significant predictors of benign prostatic hyperplasia or prostate cancer with a Gleason score of 6. The area under the receiver operating characteristics curve for age, prostate volume, and serum dihydrotestosterone were 0.67, 0.67, and 0.67, respectively . We confirmed that high dihydrotestosterone blood levels can predict benign prostatic hyperplasia or prostate cancer with a Gleason score of 6 in men with prostate-specific antigen levels of 3-10 ng/mL.
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Karasawa K, Kito S, Okano T, Nihei K, Koh S, Shibata Y, Machitori Y, Shimizuguchi T, Itou K, Tanaka H, Kageyama S. Initial Results of 2 Different Dynamic Tracking Techniques for Stereotactic Body Radiation Therapy for Solitary Lung Tumors. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Morishita K, Tatsukawa E, Shibata Y, Suehiro F, Kamitakahara M, Yokoi T, Ioku K, Umeda M, Nishimura M, Ikeda T. Diversity of multinucleated giant cells by microstructures of hydroxyapatite and plasma components in extraskeletal implantation model. Acta Biomater 2016; 39:180-191. [PMID: 27154501 DOI: 10.1016/j.actbio.2016.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/15/2016] [Accepted: 05/02/2016] [Indexed: 01/08/2023]
Abstract
UNLABELLED Foreign body giant cells (FBGCs) and osteoclasts are multinucleated giant cells (MNGCs), both of which are formed by the fusion of macrophage-derived mononuclear cells. Osteoclasts are distinct from FBGCs due to their bone resorption ability; however, not only morphological, but also functional similarities may exist between these cells. The characterization and diversity of FBGCs that appear in an in vivo foreign body reaction currently remain incomplete. In the present study, we investigated an in vivo foreign body reaction using an extraskeletal implantation model of hydroxyapatite (HA) with different microstructures. The implantation of HA granules in rat subcutaneous tissue induced a foreign body reaction that was accompanied by various MNGCs. HA granules composed of rod-shaped particles predominantly induced cathepsin K (CTSK)-positive FBGCs, whereas HA granules composed of globular-shaped particles predominantly induced CTSK-negative FBGCs. Plasma, which was used as the binder of ceramic granules, stimulated the induction of CTSK-positive FBGCs more strongly than purified fibrin. Furthermore, the implantation of HA composed of rod-shaped particles with plasma induced tartrate-resistant acid phosphatase (TRAP)-positive MNGCs in contrast to HA composed of globular-shaped particles with purified fibrin, which predominantly induced CTSK-negative and TRAP-negative typical FBGCs. These results suggest that CTSK-positive, TRAP-positive, and CTSK- and TRAP-negative MNGCs are induced in this subcutaneous implantation model in a manner that is dependent on the microstructure of HA and presence or absence of plasma. STATEMENT OF SIGNIFICANCE We attempted to elucidate the mechanisms responsible for the foreign body reaction induced by the implantation of hydroxyapatite granules with different microstructures in rat subcutaneous tissue with or without plasma components as the binder of ceramic granules. By analyzing the expression of two reliable osteoclast markers, we detected tartrate-resistant acid phosphatase-positive multinucleated giant cells, cathepsin K-positive multinucleated giant cells, and tartrate-resistant acid phosphatase- and cathepsin K-negative multinucleated giant cells. The induction of tartrate-resistant acid phosphatase-positive multinucleated giant cells was plasma component-dependent while the induction of cathepsin K-positive multinucleated giant cells was influenced by the microstructure of hydroxyapatite. This is the first study to show the conditions dividing the three kinds of multinucleated giant cells in the foreign body reaction.
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Song N, Endo D, Song B, Shibata Y, Koji T. 5-aza-2'-deoxycytidine impairs mouse spermatogenesis at multiple stages through different usage of DNA methyltransferases. Toxicology 2016; 361-362:62-72. [PMID: 27396502 DOI: 10.1016/j.tox.2016.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 07/06/2016] [Accepted: 07/06/2016] [Indexed: 01/16/2023]
Abstract
Mammalian spermatogenesis is a progressive process comprising spermatogonial proliferation, spermatocytic meiosis, and later spermiogenesis, which is considered to be under the regulation of epigenetic parameters. To gain insights into the significance of DNA methylation in early spermatogenesis, 5-azadC was used as a molecular biological tool to mimic the level of DNA methylation in vivo. Since the drug is incorporated into DNA during the S-phase, spermatogonia and spermatocytes would be affected primarily in mouse spermatogenesis. Adult male ICR mice were intraperitoneally injected with 5-azadC at a dose of 0.25mg/kg/day for 10 consecutive days, allowing us to examine its maximum effect on the kinetics of spermatogonia and spermatocytes. In this short-term protocol, 5-azadC induced significant histological abnormalities, such as a marked increase in apoptosis of spermatogonia and spermatocytes, followed by severe loss of spermatids, while after termination of 5-azadC treatment, normal histology was restored in the testis within 35days. Quantification of the methylation level of CCGG sites as well as whole DNA showed spermatogonial hypomethylation, which correlated with increased apoptosis of spermatogonia. Interestingly, the hypomethylated cells were simultaneously positive for tri-methylated histone H3 at K4. On the other hand, no changes in methylation level were found in spermatocytes, but PCNA staining clearly showed disordered accumulation of S-phase spermatocytes, which increased their apoptosis in stage XII. In addition, different immunohistochemical staining pattern was found for DNA methyltransferases (DNMTs); DNMT1was expressed in the majority of all germ cells, but DNMT3a and b were only expressed in spermatogonia. Our results indicate that 5-azadC caused DNA hypomethylation in spermatogonia, but induced prolongation of S-phase in spermatocytes, resulting in the induction of apoptosis in both cases. Thus, 5-azadC affects spermatogenesis at more than one differentiation stage with different mechanisms, probably due to the specific usage of DNMTs.
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Ahmed GJ, Tatsukawa E, Morishita K, Shibata Y, Suehiro F, Kamitakahara M, Yokoi T, Koji T, Umeda M, Nishimura M, Ikeda T. Regulation and Biological Significance of Formation of Osteoclasts and Foreign Body Giant Cells in an Extraskeletal Implantation Model. Acta Histochem Cytochem 2016; 49:97-107. [PMID: 27462135 PMCID: PMC4939317 DOI: 10.1267/ahc.16007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/31/2016] [Indexed: 01/03/2023] Open
Abstract
The implantation of biomaterials induces a granulomatous reaction accompanied by foreign body giant cells (FBGCs). The characterization of multinucleated giant cells (MNGCs) around bone substitutes implanted in bone defects is more complicated because of healing with bone admixed with residual bone substitutes and their hybrid, and the appearance of two kinds of MNGCs, osteoclasts and FBGCs. Furthermore, the clinical significance of osteoclasts and FBGCs in the healing of implanted regions remains unclear. The aim of the present study was to characterize MNGCs around bone substitutes using an extraskeletal implantation model and evaluate the clinical significance of osteoclasts and FBGCs. Beta-tricalcium phosphate (β-TCP) granules were implanted into rat subcutaneous tissue with or without bone marrow mesenchymal cells (BMMCs), which include osteogenic progenitor cells. We also compared the biological significance of plasma and purified fibrin, which were used as binders for implants. Twelve weeks after implantation, osteogenesis was only detected in specimens implanted with BMMCs. The expression of two typical osteoclast markers, tartrate-resistant acid phosphatase (TRAP) and cathepsin-K (CTSK), was analyzed, and TRAP-positive and CTSK-positive osteoclasts were only detected beside bone. In contrast, most of the MNGCs in specimens without the implantation of BMMCs were FBGCs that were negative for TRAP, whereas the degradation of β-TCP was detected. In the region implanted with β-TCP granules with plasma, FBGCs tested positive for CTSK, and when β-TCP granules were implanted with purified fibrin, FBGCs tested negative for CTSK. These results showed that osteogenesis was essential to osteoclastogenesis, two kinds of FBGCs, CTSK-positive and CTSK-negative, were induced, and the expression of CTSK was plasma-dependent. In addition, the implantation of BMMCs was suggested to contribute to osteogenesis and the replacement of implanted β-TCP granules to bone.
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Yamazaki K, Nagase M, Tamagawa H, Ueda S, Tamura T, Murata K, Eguchi Nakajima T, Baba E, Tsuda M, Moriwaki T, Esaki T, Tsuji Y, Muro K, Taira K, Denda T, Funai S, Shinozaki K, Yamashita H, Sugimoto N, Okuno T, Nishina T, Umeki M, Kurimoto T, Takayama T, Tsuji A, Yoshida M, Hosokawa A, Shibata Y, Suyama K, Okabe M, Suzuki K, Seki N, Kawakami K, Sato M, Fujikawa K, Hirashima T, Shimura T, Taku K, Otsuji T, Tamura F, Shinozaki E, Nakashima K, Hara H, Tsushima T, Ando M, Morita S, Boku N, Hyodo I. Randomized phase III study of bevacizumab plus FOLFIRI and bevacizumab plus mFOLFOX6 as first-line treatment for patients with metastatic colorectal cancer (WJOG4407G). Ann Oncol 2016; 27:1539-46. [PMID: 27177863 DOI: 10.1093/annonc/mdw206] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/09/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND FOLFIRI and FOLFOX have shown equivalent efficacy for metastatic colorectal cancer (mCRC), but their comparative effectiveness is unknown when combined with bevacizumab. PATIENTS AND METHODS WJOG4407G was a randomized, open-label, phase III trial conducted in Japan. Patients with previously untreated mCRC were randomized 1:1 to receive either FOLFIRI plus bevacizumab (FOLFIRI + Bev) or mFOLFOX6 plus bevacizumab (mFOLFOX6 + Bev), stratified by institution, adjuvant chemotherapy, and liver-limited disease. The primary end point was non-inferiority of FOLFIRI + Bev to mFOLFOX6 + Bev in progression-free survival (PFS), with an expected hazard ratio (HR) of 0.9 and non-inferiority margin of 1.25 (power 0.85, one-sided α-error 0.025). The secondary end points were response rate (RR), overall survival (OS), safety, and quality of life (QoL) during 18 months. This trial is registered to the University Hospital Medical Information Network, number UMIN000001396. RESULTS Among 402 patients enrolled from September 2008 to January 2012, 395 patients were eligible for efficacy analysis. The median PFS for FOLFIRI + Bev (n = 197) and mFOLFOX6 + Bev (n = 198) were 12.1 and 10.7 months, respectively [HR, 0.905; 95% confidence interval (CI) 0.723-1.133; P = 0.003 for non-inferiority]. The median OS for FOLFIRI + Bev and mFOLFOX6 + Bev were 31.4 and 30.1 months, respectively (HR, 0.990; 95% CI 0.785-1.249). The best overall RRs were 64% for FOLFIRI + Bev and 62% for mFOLFOX6 + Bev. The common grade 3 or higher adverse events were leukopenia (11% in FOLFIRI + Bev/5% in mFOLFOX6 + Bev), neutropenia (46%/35%), diarrhea (9%/5%), febrile neutropenia (5%/2%), peripheral neuropathy (0%/22%), and venous thromboembolism (6%/2%). The QoL assessed by FACT-C (TOI-PFC) and FACT/GOG-Ntx was favorable for FOLFIRI + Bev during 18 months. CONCLUSION FOLFIRI plus bevacizumab was non-inferior for PFS, compared with mFOLFOX6 plus bevacizumab, as the first-line systemic treatment for mCRC. CLINICAL TRIALS NUMBER UMIN000001396.
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Kamitakahara M, Tatsukawa E, Shibata Y, Umemoto S, Yokoi T, Ioku K, Ikeda T. Effect of silicate incorporation on in vivo responses of α-tricalcium phosphate ceramics. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:97. [PMID: 27003839 DOI: 10.1007/s10856-016-5706-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 03/10/2016] [Indexed: 06/05/2023]
Abstract
In addition to calcium phosphate-based ceramics, glass-based materials have been utilized as bone substitutes, and silicate in these materials has been suggested to contribute to their ability to stimulate bone repair. In this study, a silicate-containing α-tricalcium phosphate (α-TCP) ceramic was prepared using a wet chemical process. Porous granules composed of silicate-containing α-TCP, for which the starting composition had a molar ratio of 0.05 for Si/(P + Si), and silicate-free α-TCP were prepared and evaluated in vivo. When implanted into bone defects that were created in rat femurs, α-TCP ceramics either with or without silicate were biodegraded, generating a hybrid tissue composed of residual ceramic granules and newly formed bone, which had a tissue architecture similar to physiological trabecular structures, and aided regeneration of the bone defects. Supplementation with silicate significantly promoted osteogenesis and delayed biodegradation of α-TCP. These results suggest that silicate-containing α-TCP is advantageous for initial skeletal fixation and wound regeneration in bone repair.
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Karasawa K, Ito K, Shibata Y, Hayakawa S, Tanaka H, Shimizuguchi T, Machitori Y, Fujii M, Nihei K, Fuse K, Kawamoto T, Kuramoto H. EP-1211: Prognostic factors in patients with Stage I NSCLC treated with 3-D noncoplanar conformal RT. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32461-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nio K, Higashi D, Kumagai H, Arita S, Shirakawa T, Nakashima K, Shibata Y, Esaki M, Ueki T, Nakano M, Ariyama H, Kusaba H, Hirahashi M, Oda Y, Esaki T, Mitsugi K, Futami K, Akashi K, Baba E. 176P Safety analysis of chemotherapy for colitis-associated colorectal cancer in Japan. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.37] [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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Gevaert AB, Borizanova A, Graziani F, Galuszka OM, Stathogiannis K, Lervik Nilsen LC, Nishino S, Willis J, Venner C, Luo XX, Van De Heyning CM, Castaldi B, Michalski BW, Wang TL, Aktemur T, Dorlet S, Verseckaite R, Amzulescu MS, Brecht A, Brand M, Galli E, Murzilli R, Bica R, Teixeira R, Schmid J, Miglioranza MH, Cherneva ZH, Gheghici S, Pernigo M, Rafael D, Van Craenenbroeck AH, Shivalkar B, Lemmens K, Vrints CJ, Van Craenenbroeck EM, Somleva D, Zlatareva- Gronkova N, Kinova E, Goudev A, Camporeale A, Pieroni M, Pedicino D, Laurito MP, Verrecchia E, Lanza GA, Manna R, Crea F, Reinthaler M, Rutschow S, Gross M, Landmesser U, Kasner M, Toutouzas K, Drakopoulou M, Latsios G, Synetos A, Kaitozis O, Trantalis G, Mastrokostopoulos A, Kotronias R, Tousoulis D, Brekke BB, Aase SA, Lonnebakken MT, Stensvag D, Amundsen B, Torp H, Stoylen A, Watanabe N, Kimura T, Nakama T, Furugen M, Koiwaya H, Ashikaga K, Kuriyama N, Shibata Y, Augustine DX, Knight D, Sparey J, Coghlan G, Easaw J, Huttin O, Voilliot D, Mercy M, Villemin T, Olivier A, Mandry D, Chaouat A, Juilliere Y, Selton-Suty C, Fang F, Li S, Zhang ZH, Yu CM, Bertrand PB, De Maeyer C, De Bock D, Paelinck BP, Vrints CJ, Claeys MJ, Reffo E, Balzarin M, Zulian F, Milanesi O, Miskowiec D, Kupczynska K, Peczek L, Nawrot B, Lipiec P, Kasprzak JD, Li H, Jin XY, Poci N, Kaymaz C, Huttin O, Voilliot D, Venner C, Villemin T, Manenti V, Carillo S, Chabot F, Juilliere Y, Selton-Suty C, Mizariene V, Rimkeviciute D, Bieseviciene M, Jonkaitiene R, Jurkevicius R, Roy C, Slimani A, Boileau L, De Meester C, Vancraeynest D, Pasquet A, Vanoverschelde JL, Pouleur AC, Gerber BL, Oertelt-Prigione S, Seeland U, Ruecke M, Regitz-Zagrosek V, Stangl V, Knebel F, Laux D, Roeing J, Butz T, Christ M, Grett M, Wennemann R, Trappe HJ, Fournet M, Leclercq C, Samset E, Daubert JC, Donal E, Leo LA, Pasotti E, Klersy C, Moccetti T, Faletra FF, Dobre D, Darmon S, Dumitrescu S, Calistru P, Monteiro R, Ribeiro M, Garcia J, Cardim N, Goncalves L, Kaufmann R, Grubler MR, Verheyen N, Weidemann F, Binder JS, Santanna RT, Rover MM, Leiria T, Kalil R, Picano E, Gargani L, Kuneva ZK, Vasilev DV, Ianula R, Dasoveanu M, Calin C, Homentcovsci C, Siliste R, Bergamini C, Mantovani A, Bonapace S, Lipari P, Barbieri E, Bonora E, Targher G, Camarozano AC, Pereira Da Cunha CL, Padilha SL, Souza AM, Freitas AKE. HIT Poster session 1P154Preclinical diastolic dysfunction is related to impaired endothelial function in patients with chronic kidney diseaseP155Early detection of left atrial and left ventricular abnormalities in hypertensive and obese womenP156Right ventricle preserved systolic function irrespective of right ventricular hypertrophy and disease severity in anderson fabry diseaseP157Left atrial volume and function in patients undergoing percutaneous mitral valve repairP158Impact of left ventricular dysfunction on outcomes of patients undergoing direct TAVI with a self-expanding bioprosthesisP159Anatomic Doppler spectrum – retrospective spectral tissue Doppler from ultra high frame rate tissue Doppler imaging for evaluation of tissue deformationP160Phasic dynamics of ischaemic mitral regurgitation after primary coronary intervention in acute myocardial infarction: serial echocardiographic assessment from emergency room to long-term follow-upP161Reproducibility of 3DE RV volumes - novel insights at a regional levelP162Pulmonary vascular capacitance as assessed by echocardiography in pulmonary arterial hypertensionP163Three-dimensional endocardial area strain: a novel parameter for quantitative assessment of global left ventricular systolic functionP164Role of exercise hemodynamics assessed by echocardiography on symptom reduction after MitraClipP165Early identification of ventricular dysfunction in patients with juvenile systemic sclerosisP166Heart failure with and without preserved ejection fraction - the role of biomarkers in the aspect of global longitudinal strainP167Complex systolic deformation of aortic root: insights from two dimensional speckle tracking imageP168Volumetric and deformational imaging usind 2d strain and 3d echocardiography in patients with pulmonary hypertensionP169Influence of pressure load and right ventricular morphology and function on tricuspid regurgitation in pulmonary arterial hypertensionP170Left ventricular myocardial diastolic deformation analysis by 2D speckle tracking echocardiography and relationship with conventional diastolic parameters in chronic aortic regurgitationP171Extracellular volume, and not native T1 time, distinguishes diffuse fibrosis in dilated or hypertrophic cardiomyopathy at 3TP172Left atrial strain is significantly reduced in arterial hypertensionP173Symptomatic severe secondary mitral regurgitation: LV enddiastolic diameter (LVEDD) as preferable parameter for risk stratificationP174Left ventricular mechanics in isolated left bundle branch block at rest and when exercising: exploration of the concept of conductive cardiomyopathyP175Assessment of myocardial scar by 2D contrast echocardiographyP176Chronic pericarditis - expression of a rare disease: Erdheim Chester diseaseP177Aortic arch mechanics with two-dimensional speckle tracking echocardiography to estimate the left ventricular remodelling in hypertensive patientsP178Strain analysis by tissue doppler imaging: comparison of conventional manual measurement with a semi-automated approachP179Distribution of extravascular lung water in heart failure patients assessed by lung ultrasoudP180Surrogate markers for obstructive coronary artery diseaseP181LA deformation and LV longitudinal strain by two-dimensional speckle tracking echocardiography as predictors of postoperative AF development after aortic valve replacement in ASP182Left ventricular diastolic dysfunction in type 2 diabetic patients with non alcoholic fatty liver diseaseP183Myocardial strain by speckle-tracking and evaluation of 3D ejection fraction in drug-induced cardiotoxicity's approach in breast cancer. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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