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External apical root resorption and the release of interleukin-6 in the gingival crevucular fluid induced by a self-ligating system

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Open Journal of Stomatology 2012年第2期2卷 116-121页

作者： Ryoko Kawashima-Ichinomiya Masaru Yamaguchi Yasuhiro Tanimoto masaki asano Kunihiko Yamada Ryo Nakajima Shoji Fujita Kazutaka Kasai Department of Dental Biomaterials Nihon University School of Dentistry at Matsudo Chiba Japan Department of Orthodontics Nihon University School of Dentistry at Matsudo Chiba Japan

The aim of this study was to investigate the amount of external apical root resorption (EARR) and the release of interleukin (IL)-6 in the gingival crevicular fluid (GCF) in subjects treated with a low-force low-friction system. Sixty patients were assigned to two groups of thirty patients for each: one group received treatment with self-ligating brackets and the other with conventional ligated edgewise brackets. All patients were treated with extraction of the maxillary first premolars. The EARR of the maxillary central incisors was evaluated on the periapical radiographs and cephalograms, taken before and after orthodontic treatment. The GCF was also collected non-invasively from the mesial and distal sides of central incisors by using filter paper strips before and after orthodontic treatment. Enzyme-linked immunosorbent assay (ELISA) kits were used to determine the IL-6 levels in the GCF samples. A significant difference was found in the amount of EARR between the patients with self-ligating brackets and conventional brackets. The mean amount of EARR was significantly lower for self-ligating brackets than conventional brackets (p < 0.05). The GCF levels of IL-6 for the patients with self-ligating brackets appliance were significantly lower than for those with the conventional brackets (p < 0.05). These results show that the mean amount of EARR and the GCF levels of IL-6 were significantly lower in the patients treated using low-force low-friction appliances than conventional brackets. Therefore, self-ligating brackets may be a useful system for reducing inflammation and EARR.

关键词： IL-6 Gingival Crevucular Fluid External Apical Root Resorption Self-Ligating Brackets

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Polygenic Heritability of Rose Root Rot Disease Resistance in Offspring of Rosa multiflora

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Agricultural Biotechnology 2019年第3期8卷 21-24,28页

作者： Defeng ZHUANG Lianhua LI Ce MA Fumitada NAGAOKA Yoichi asano Koji KAGEYAMA masaki OCHIAI Hirokazu FUKUI Liaoning Research Institute of Cash Crop Liaoyang 111000China International Cooperation Liaoning Academy of Agricultural Sciences84 Dongling RoadShenyang 110161China Faculty of Applied Biological Sciences Gifu UniversityYanagidoGifu 501-1193Japan Flower Festival Commemorative Park 1584-1 SetaKani 509-0213Japan River Basin Research Centre Gifu UniversityYanagidoGifu 501-1193Japan

Rose root rot disease caused by Pythium helicoides Drechsler has brought heavy damage to cut rose production in Japan,and it has became apparent that Rosa multiflora showed resistance to this *** have been bred by interspecies crossing with Rosa species including of ***,and many progenies of *** have been bred as determined cluster-flowered ***,the genetic architecture of this resistance ***,in this study,four kinds of *** and 21 rose cultivars that have been clarified in the cross-fertilization genealogy with *** were used as plant materials,and the inheritability of resistance to root rot disease was *** kinds of *** had all high resistance,and the resistance to root rot disease in *** was inherent characteristic of *** varieties not less than 50% in relatedness with *** were shown as varied ‘resistant’ and ‘moderately resistant’.Therefore,the inherent resistant characteristic in *** was not controlled by single major gene,and the resistibility in *** was not cytoplasmic but nuclear *** there was significant negative relation between relative root rot severity and relatedness with ***,the variance of relative root rot severity had tendency to expand as relatedness with *** *** result,therefore,indicated that the contingency of resistance expression increased as the relatedness with *** was *** varieties having low degree of relatedness with *** had similar relative root rot severity with *** results indicated that we would be able to select resistant roses from progenies crossed with ***.

关键词： Inheritance Pythium helicoides Resistance Rose root rot

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