著者

Yoshinao HOSAKA Sachiko OZOE Rikio KIRISAWA Hiromi UEDA Kazushige TAKEHANA Mamoru YAMAGUCHI

出版者

バイオメディカルリサーチプレス

雑誌

Biomedical Research (ISSN:03886107)

巻号頁・発行日

vol.27, no.5, pp.233-241, 2006 (Released:2006-11-13)

参考文献数

46

被引用文献数

11 20

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The aim of this study was to clarify whether matrix metalloproteinases (MMP-2 and -9: gelatinases) and pro-inflammatory cytokines [tumor necrosis factor (TNF) α and interleukin (IL)-1β] are induced by heat in tendon tissue in vitro and to test the hypothesis that heat exposure causes tendinocytes to synthesize pro-inflammatory cytokines and that synthesis of these cytokines, in turn, leads to up-regulation of synthesis of gelatinases. Isolated tendinocytes from equine superficial digital flexor tendons were cultured and all experiments were performed on cells passaged 3 or 4 times. In the cells exposed to heat (37 to 45°C, 0 to 60 min), the survival rate decreased sharply in a temperature- and time-dependent manner, especially at 42 and 45°C. Cells exposed at 40°C, however, showed little change in survival rate and morphology. Gelatin zymograms revealed that proMMP-2 and -9 were the only two MMPs remaining in the supernatant of the cultured tendinocytes, including that of untreated cells. Addition of TNFα and IL-1β to the culture medium of tendinocytes accelerated proMMP-9 synthesis considerably. Heating the tendinocytes (40°C) led to a three-fold increase in proMMP-9 synthesis in a short time. Only TNFα was detected in tendinocytes after heat exposure for 30 and 60 min. In contrast, IL-1β was under the detectable level in ELISA. Cooling of heat-exposed cells from 40°C to 37°C considerably down-regulated cellular proMMP-9 synthesis. Furthermore, proMMP-9 level was greatly reduced in cells treated at lower temperatures, 20°C and 5°C. These findings support our hypothesis that hyperthermia in the horse tendon induces tendinocytes to synthesize pro-inflammatory cytokines and that the synthesis of these cytokines results in the up-regulation of gelatinases.

著者

Mikio Wada Hiromi Ueda Akiko Watanabe Natsuko Yuki Sadao Yamashita

出版者

日本プライマリ・ケア連合学会

雑誌

General Medicine (ISSN:13460072)

巻号頁・発行日

vol.15, no.1, pp.47-51, 2014-06-20 (Released:2014-06-27)

参考文献数

7

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A 31-year-old healthy mother of twins developed Guillain-Barré syndrome in her fourth gestational week of pregnancy. Impaired motor coordination, sensation, and joint position sense were observed. Immunoglobulin therapy was not performed given the early stage of pregnancy. She received rehabilitation to accommodate changes in her body shape and movements necessary for pregnancy, childbirth, and childcare. The patient delivered a healthy baby by cesarean section. By 42 weeks postpartum, she was capable of almost all housework activities and childcare. Family support was important in this case. Patient-oriented intervention, which included periodic confirmation and establishment of goals in each phase and continuity of intervention, was also essential.