A study on the effect of the solar ultra-violet radiation on the human skin fibroblast cells revealed that the production of matrix metalloproteinase-2 was inhibited by the radiation.A CO2 incubator connected by optic...A study on the effect of the solar ultra-violet radiation on the human skin fibroblast cells revealed that the production of matrix metalloproteinase-2 was inhibited by the radiation.A CO2 incubator connected by optical fibers to a reflector telescope for collecting the solar light was built at Syowa station by the 49th Japanese Antarctica Research Expedition.The direction of the telescope was continuously controlled by a sun-tracker to follow the movement of the Sun automatically.The intensity of the collected light was monitored by a portable spectrophotometer housed inside.The human skin fibroblast cells were incubated in the CO2 chamber to investigate the effect of the solar radiation at Syowa station and were compared with those reference experiments at a laboratory in Japan.The results showed cell damage by strong UV radiation.The production of matrix metalloproteinase-2 was prompted by the moderate UV-B,but was inhibited by the strong UV-B radiation,as studied under laboratory conditions in Japan.The effect of strong solar radiation at Syowa station involving the radiation of UV-B region was estimated to be of the same extent of the radiation caused by an artificial UV-B light with the intensity more than 50 mJ/cm2.展开更多
Perioperative stress arises when patients are undergoing anesthesia and surgical intervention[1].The optimum care will not be given without sufficient monitoring the stress.Stress-related hormones,such as cortisol,adr...Perioperative stress arises when patients are undergoing anesthesia and surgical intervention[1].The optimum care will not be given without sufficient monitoring the stress.Stress-related hormones,such as cortisol,adrenaline and noradorenaline,are measured as a traditional indicator of perioperative stress in animals,but it needs blood or salivary which are difficult to be sampled in some cases[2].Some noninvasive and easier measuring indicators of perioperative stress have been looked for in order to give more appropriate care for animals.展开更多
基金fnancially supported partly by the Grand-In-Aid for Scientifc Research(C)18510022 and (C)21510032 of Japan Society for the promotion of Science
文摘A study on the effect of the solar ultra-violet radiation on the human skin fibroblast cells revealed that the production of matrix metalloproteinase-2 was inhibited by the radiation.A CO2 incubator connected by optical fibers to a reflector telescope for collecting the solar light was built at Syowa station by the 49th Japanese Antarctica Research Expedition.The direction of the telescope was continuously controlled by a sun-tracker to follow the movement of the Sun automatically.The intensity of the collected light was monitored by a portable spectrophotometer housed inside.The human skin fibroblast cells were incubated in the CO2 chamber to investigate the effect of the solar radiation at Syowa station and were compared with those reference experiments at a laboratory in Japan.The results showed cell damage by strong UV radiation.The production of matrix metalloproteinase-2 was prompted by the moderate UV-B,but was inhibited by the strong UV-B radiation,as studied under laboratory conditions in Japan.The effect of strong solar radiation at Syowa station involving the radiation of UV-B region was estimated to be of the same extent of the radiation caused by an artificial UV-B light with the intensity more than 50 mJ/cm2.
文摘Perioperative stress arises when patients are undergoing anesthesia and surgical intervention[1].The optimum care will not be given without sufficient monitoring the stress.Stress-related hormones,such as cortisol,adrenaline and noradorenaline,are measured as a traditional indicator of perioperative stress in animals,but it needs blood or salivary which are difficult to be sampled in some cases[2].Some noninvasive and easier measuring indicators of perioperative stress have been looked for in order to give more appropriate care for animals.
