How fast the sperm can run on earth

How fast the sperm can run on earth
In checking in the laboratory of man's sterility, that stood in the breach certainly seminal fluid check. The index includes the regular seminal fluid's checking: Seminal fluid quantity, color and luster, acid alkalinity, agglutinate, liquefaction, sperm counting, sperm's vigor,etc.. Among them sperm's vigor is a very important index, but all carried on subjective judgement under the microscope according to the result that the naked eye was observed according to the docimaster in the past, it is not only influenced by docimaster's engineering level, but also there is suitable subjectivity. Carry on the hierarchical record according to the quality that the sperm moves according to the method that World Health Organization stipulates in some laboratories, some only assess roughly generally, record for being good, middle, weak. So, the seminal fluid is checked and has been in lower level all the time. 70- In the eighties, successively developed the laser and only scatter and measured technology and automatic analyticl system of image processing of computer abroad, the level of making the seminal fluid check has reached very accurate and complete intensity. The gratifying one is to pass the efforts for many years, our country has already designed and developed the above-mentioned two systems by oneself, fill the domestic gaps, make the sperm function analytical technique of our country reach the world level. State Family Planning Commission science and technology research institute to utilize, carry on thousands of normal people and sterility with two instrument and equipment these that Tsing-Hua University develop jointly Measure the disease patient one seminal fluid,at the same time also for giant panda, mice, mice, oxen little big,etc. kind the seminal fluids of animals different measure, obtain a large number of first-hand materials. According to measuring, the distribution peak value of the normal people's sperm's movement speed is 36 microns per second, its average movement speed is 35 microns per second, and the sterility patient's sperm's movement speed is distributed peak value it is 32 microns per second, the average movement speed is 31 microns per second, the prominent difference exists between two groups. According to clinical statistics, there are 20% that do not have precise disease in the male sterility patient, 30% about for lack precise disease, 40% about the intersection of person and the intersection of sperm and sport speed lower than 31 microns per second (half among them is lower than 28 microns per second) . Have quite a few of people liquid to check seemingly normally because of the male sterility patient, in fact the movement ability of the sperm is low, so we think if the intersection of sperm and average the intersection of movement and speed of one should regard as weak precise disease (namely sperm vigor poor lower than 28 micron per second, tentatively, or say sperm's movement has bad ability) . Find, the level of sperm's movement speed has prominent kind differences according to the animal experimental result, the fertility rate low in speed is low too. For example the sperm of the ox moves the speed can reach 50- 70 microns second, little mouse and big mouse can be up to 45- 55 microns second, and the sperm of the giant panda moves the speed is only 20 microns per about second. It is a great difficult problem of protecting this rare animal that the reproduction ability of the giant panda is low. Observe example, count, still too little, still can't affirm fertility rate of giant panda because sperm their take exercises speed to be too low at present. It still indicates, the level that sperm's movement speed counts with the sperm has nothing to do to measure the result clinically; Have no relations with whether the seminal fluid is liquefied. Then, will you please improve man's sterile patient's movement speed of sperm, solve their bearing the problem? There is this kind of possibility very much. First, improve its vigor of sperm through Chinese and Western drug therapy; Through punish method, make sperm take exercises speed raise, then carry on artificial fertilization outside the body. The experiment shows, hatch special sperm's nutrition to breed the liquid to add in the test tube above the seminal fluid carefully, nutrient liquid gets along with the seminal fluid hierarchically like cocktail at this moment, then put the test tube in 37 degrees of C warm cases and hatch and breed for 3 hours, the activity sperm will swim over to nutrient liquid of the upper strata successively, their vigor will be strengthened because of being rich in the nutriment in surrounding environment. Hatch before breeding sperm's movement speed is 32 microns per second, can improve to 42 microns per second after hatching and breeding. It is obvious, can make originally taking exercises through such special cultivation method the intersection of ability and low sperm become " master sportsman " at one blow. It is reported, adopt this kind of method to already make a lot of man sterile patients have one's own children. These two systems that develop at home are determining the sperm moves the speed is very reliable. They must publish and determine the result rapidly, have offered the reliable means for clinical examining and basic research. There is these advanced detection means, the doctor can understand some functions of the sperm accurately, find out sterile reason, can utilize them measure patient in take sperm take exercises change of the speed treat little precise disease or weak precise the intersection of disease and medicine, thus offer the valuable materials for the fact that the function mechanism of therapeutic effect and medicine is studied. Certainly, these instruments also have a weak point too. For example the sperm that the automatic analyticl system of sperm's function measures counts often a bit high, and the living rate of sperm is on the low side. This is because seminal fluid have many the intersection of sperm and particle still in the sample, computer right to lack enough distinguishing ability with the intersection of sperm and the intersection of size and close particle, will be regarded as these particles by mistake the sperm not moving about, so that offset. This is the outstanding difficult problem both at home and abroad. In order to relieve the physical and psychological agony of the sterility patient, we are continuing making great efforts, strive to measure competence of sperm's function to improve one step more.

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