Warm sperm chemotaxis and its significance _2559 -

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Warm sperm chemotaxis and its significance

Before they can get some work experience: first-line to a set of institutions, fever clinics to give full play to its role, and now some slack in this regard,[link widoczny dla zalogowanych], there are reasons for the patient, but also the problems we check omissions. Emergency department physicians as for SARS to re-learn. At the same time to have a group of experts as a second line, for unknown reasons do have to ask the hospital for suspected cases of this group of second-line doctor consultation, play to our strengths, to confirm the diagnosis. We also have a set of reporting and isolation measures,[link widoczny dla zalogowanych], the current fever clinics with 4 isolation beds, but if the current admissions beyond capacity, we need the hospital has a contingency plan. In addition to organizing and mobilizing forces to design a practical laboratory test method to confirm the diagnosis. Only the implementation of these measures, we may come to calmly deal with the SARS. Sperm chemotaxis and its significance as the temperature of the cold waves that hit the North Pole this year, very cold in most parts of the United States. Therefore,[link widoczny dla zalogowanych], many Americans involved in long-distance migration to find warm, like warm sperm as well. Israel Academy of Sciences bad I】 Weissman and his colleagues Mike Eisenhower, a new study suggests that rabbit sperm to unfertilized eggs rush, because the latter place where the temperature is high, the fallopian tubes in which eggs location of the initial sperm swimming areas than warmer, and the sperm can feel the warmth of the differences in the course of their final decision. About a decade ago, the team began to study the Eisenhower mammalian sperm cells and found that unfertilized eggs by releasing a chemical that attracts sperm, but Eisenhower did not believe chemotaxis sperm can then finish the tube 2-3 cm long journey. Eisenhower read the recent experiment a decade ago found that records of the genitals of female mammals, the temperature of each part is different. For example, the British biologist R · Hunter discovered during ovulation, the mature sperm stay in the isthmus of the temperature than the temperature of the low fertility site. Hunter pointed out that sperm can feel the temperature difference. To this end,[link widoczny dla zalogowanych], Eisenhower and his colleagues designed a simulation of the fallopian tubes, which contain two liquid-filled pond, a 39 ~ C to keep the other 37oC (rabbit body temperature) and then observation of rabbit sperm by way of video mobile, the results show that about 7-17% of sperm to swim to a warmer place, they call this phenomenon as When the simulation environment temperature to just a difference of half a degree, they get the same result. To this end, they also prove that human sperm also have this tendency warm. Finally,[link widoczny dla zalogowanych], Eisenhower proved that the rabbit oviduct isthmus near the site of fertilization lower than 2 ~ C, the results of similar studies with Hunter. Although the work is quite inspiring, but scientists are still skeptical warm this trend, because too few sperm to heat a reaction. Could it be that the rest of the unreacted sperm is unhealthy it? However, if human sperm is really driven by the temperature, is very meaningful. So Eisenhower used increasingly by doctors test for assessment of temperature and health status of human sperm, the sperm of another if there are too many differences between the lack of response to temperature, also happens to be why there are so many male infertility. Wang Shali Quoted ScienceNews, 2003,63:69 Zhang Jingbo revision

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