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CN104099293A - Sperm optimal selection method based on microporous membrane - Google Patents

Sperm optimal selection method based on microporous membrane Download PDF

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Publication number
CN104099293A
CN104099293A CN201410304746.1A CN201410304746A CN104099293A CN 104099293 A CN104099293 A CN 104099293A CN 201410304746 A CN201410304746 A CN 201410304746A CN 104099293 A CN104099293 A CN 104099293A
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China
Prior art keywords
sperm
concentration
microporous membrane
nutrient solution
method based
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CN201410304746.1A
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Chinese (zh)
Inventor
曾桥
薛志刚
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ZHEJIANG CELLPRO BIOTECH Co Ltd
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ZHEJIANG CELLPRO BIOTECH Co Ltd
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Abstract

The invention discloses a sperm optimal selection method based on a microporous membrane. High quality and high activity sperms preferentially reach a sperm nutrient solution by using the initiative attracting of the sperm nutrient solution to sperms, the blocking of the microporous membrane, and microporous competitive passing, and under effects of gravity and activity competition, the sperms in the sperm nutrient solution are highly energetic. The method provided by the invention is simple in selection, the sperm recovering rate is high, sperm quality reduction is avoided, and the screening effect is good. Therefore, the sperm optimal selection method based on the microporous membrane has the advantages of simple selection, good selection effect, high recovery ratio, easiness in sperm quality control.

Description

A kind of sperm preferred method based on microporous membrane
Technical field
The present invention relates to sperm preferred method, be specifically related to a kind of sperm preferred method based on microporous membrane.
Background technology
Motility of sperm is one of key factor of becoming pregnant, the seminal fluid that sperm motility rate is high, and the sperm quantity that its motility is strong is relatively high, and the probability of therefore becoming pregnant is also high.The sperm optimization technique extensively adopting at present has the optimization techniques such as upstream technology, density gradient centrifugation.Upstream technology be utilize sperm own vitality upwards swimming principle and design, sperm is in upstream process, can depart from refining some and endogenicly press down smart material, as antisperm antibody, various types of cells etc., and make sperm in vitro the activity time extended, but upstream technology is relatively low to the high quality sperm rate of recovery.Density gradient centrifugation is processed the rear high quality sperm rate of recovery and is improved, but easily causes sperm DNA peroxide injury, and sperm quality declines.Chinese patent notification number is the patent of invention of CN102352305, the micro-fluidic core technology of utilizing is disclosed, detect and screening sperm, its principle is to utilize slightly poor sperm and the white corpuscle of cervical mucus absorption vigor in sample pool, epithelial cell etc., in recycling damping fluid addition pool, add damping fluid, flow high-precision the vigor in sample pool subband in sample collection pond by damping fluid liquid, reach screening and the collection of high motile sperm, but this patent of invention technology is more complicated, should cervical mucus adsorb, damping fluid is passive is again flushed to sample collection pond by sperm stream, sperm is not active Flow, sperm quality quality is wayward.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of screening simply, and screening effect is good, and the rate of recovery is higher, the manageable sperm preferred method based on microporous membrane of sperm quality.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of sperm preferred method based on microporous membrane, and its step is as follows:
A, seminal fluid is moved in test tube, be covered with the microporous membrane of micropore in the surface coverage of seminal fluid, described microporous membrane is thick is 50~200 microns, and the aperture of described micropore is 10~200 microns;
B, on microporous membrane, add sperm nutrient solution, in described sperm nutrient solution, contain the sodium-chlor that concentration is 0.1mol/L, concentration is the potassium primary phosphate of 0.4mmol/L, concentration is the glucose of 2.7mmol/L, concentration is the Repone K of 4.7mmol/L, concentration is the magnesium sulfate heptahydrate of 0.2mmol/L, concentration is the Calcium dichloride dihydrate of 2mmol/L, concentration is N-2-hydroxyethyl piperazine-N-2-ethyl sulfonic acid disodium salt (Hepes-Na) of 0.02mol/L, concentration is the sodium bicarbonate of 4mmol/L, concentration is 0.3mmol/L Sodium.alpha.-ketopropionate, concentration expressed in percentage by volume is 0.34% Sodium.alpha.-hydroxypropionate (C 3h 5o 3na) phenol red (the Phenol Red) that, mass percentage concentration is 0.002%, this sperm nutrient solution has the effect that initiatively attracts sperm to move, and by the obstruct of microporous membrane, the sperm precedence of high vigor is entered in sperm nutrient solution from micropore,
C, test tube is placed at 37 DEG C, constant temperature 15~45 minutes, reclaims the sperm nutrient solution of microporous membrane top, obtains preferred sperm.
Compared with prior art, the invention has the advantages that a kind of sperm preferred method based on microporous membrane, utilize sperm nutrient solution to attract the active of sperm, the obstruct of microporous membrane, micropore is emulative to be passed through, making the sperm precedence of high quality, high vigor arrive sperm nutrient solution, under gravity and vigor competition, is substantially all the sperm of high vigor in sperm nutrient solution.Method screening of the present invention is simple, and the sperm rate of recovery is higher, avoids sperm quality to decline simultaneously, and screening effect is good, and therefore the present invention is that a kind of screening is simple, and screening effect is good, and the rate of recovery is higher, the manageable sperm preferred method based on microporous membrane of sperm quality.
Brief description of the drawings
Fig. 1 is the schematic diagram of sperm preferred method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment 1
A kind of sperm preferred method based on microporous membrane as shown in the figure, seminal fluid is moved in test tube 1, in the surface coverage of seminal fluid 3, be covered with the microporous membrane 2 of micropore 21, microporous membrane 2 slightly larger in diameter are in the internal diameter of test tube 1, reach all standing, prevent that sperm is from edge flowing, microporous membrane 2 is thick is 50~200 microns, the aperture of micropore 21 is 10~200 microns, determine according to screening sperm size in the aperture of micropore, the maximum diameter that is slightly larger than screening sperm, while screening as people's sperm, the aperture of micropore is 40 microns of left and right; On microporous membrane 2, add sperm nutrient solution 4, in this sperm nutrient solution, containing the sodium-chlor that concentration is 0.1mol/L, the potassium primary phosphate that concentration is 0.4mmol/L, the glucose that concentration is 2.7mmol/L, the Repone K that concentration is 4.7mmol/L, the magnesium sulfate heptahydrate that concentration is 0.2mmol/L, the Calcium dichloride dihydrate that concentration is 2mmol/L, the Hepes-Na that concentration is 0.02mol/L, sodium bicarbonate, the concentration that concentration is 4mmol/L is that 0.3mmol/L Sodium.alpha.-ketopropionate, concentration expressed in percentage by volume are the C of 0.34% (v/v) 3h 5o 3the Phenol Red that Na, mass percentage concentration are 0.002%; Test tube is placed at 37 DEG C, constant temperature 15~45 minutes, sperm initiatively upwards moves to sperm nutrient solution like this, in the double competition of the vigor of gravity, the sperm that vigor is high enters the sperm nutrient solution on upper strata by micropore, the sperm competition power that vigor is low is inadequate, have to, in lower floor, control constant temperature time, just can control the sperm quality in sperm nutrient solution, the sperm nutrient solution that reclaims microporous membrane top, is placed in another test tube, obtains preferred sperm.Be conducive to the operations such as follow-up artificial insemination, in vitro fertilization, Microfertilization.
The material of above-mentioned microporous membrane can be avirulent polypropylene, glass, vegetable fibre etc.; Sperm source can be Mammals, as people, mouse, rat, rabbit, sheep, dog, cat, ox etc., can be also other animal, as fish, two class etc. of dwelling.

Claims (1)

1. the sperm preferred method based on microporous membrane, is characterized in that step is as follows:
A, seminal fluid is moved in test tube, be covered with the microporous membrane of micropore in the surface coverage of seminal fluid, described microporous membrane is thick is 50~200 microns, and the aperture of described micropore is 10~200 microns;
B, on microporous membrane, add sperm nutrient solution, in described sperm nutrient solution, contain the sodium-chlor that concentration is 0.1mol/L, concentration is the potassium primary phosphate of 0.4mmol/L, concentration is the glucose of 2.7mmol/L, concentration is the Repone K of 4.7mmol/L, concentration is the magnesium sulfate heptahydrate of 0.2mmol/L, concentration is the Calcium dichloride dihydrate of 2mmol/L, concentration is N-2-hydroxyethyl piperazine-N-2-ethyl sulfonic acid disodium salt of 0.02mol/L, concentration is the sodium bicarbonate of 4mmol/L, concentration is 0.3mmol/L Sodium.alpha.-ketopropionate, concentration expressed in percentage by volume is 0.34% Sodium.alpha.-hydroxypropionate, mass percentage concentration be 0.002% phenol red,
C, test tube is placed at 37 DEG C, constant temperature 15~45 minutes, reclaims the sperm nutrient solution of microporous membrane top, obtains preferred sperm.
CN201410304746.1A 2014-06-30 2014-06-30 Sperm optimal selection method based on microporous membrane Pending CN104099293A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104498346A (en) * 2014-12-12 2015-04-08 张群 Micron-hole-based apparatus for rapidly screening and collecting healthy sperms and application method of micron-hole-based apparatus
CN105838591A (en) * 2016-04-11 2016-08-10 同济大学苏州研究院 Sperm selection device and selection method based on principle of fly trap
CN106896051A (en) * 2017-03-06 2017-06-27 浙江星博生物科技股份有限公司 A kind of method of human sperm's acrosome reaction ability detection
CN112294408A (en) * 2020-08-24 2021-02-02 成都西囡妇科医院有限公司 A dual-purpose microfluidic sperm collection tube and control method
US11352597B2 (en) 2015-09-28 2022-06-07 My123Baby Medical Limited Medical device for the selective separation of a biological sample
CN115701450A (en) * 2021-08-02 2023-02-10 邦睿生技股份有限公司 Sperm sorting device and method
US11709122B2 (en) 2013-11-20 2023-07-25 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
WO2024086456A1 (en) * 2022-10-21 2024-04-25 Texas Tech University System Apparatus and method for collection of sperm samples

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CN103335933A (en) * 2013-06-28 2013-10-02 浙江星博生物科技有限公司 Flow cytometry-based sperm acrosome reaction detection reagent

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Publication number Priority date Publication date Assignee Title
WO2012126478A1 (en) * 2011-03-21 2012-09-27 Motilitycount Aps Device for analysis of cellular motility
CN103335933A (en) * 2013-06-28 2013-10-02 浙江星博生物科技有限公司 Flow cytometry-based sperm acrosome reaction detection reagent

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11709122B2 (en) 2013-11-20 2023-07-25 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
US11788943B2 (en) 2013-11-20 2023-10-17 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
US11841309B2 (en) 2013-11-20 2023-12-12 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
US11946846B2 (en) 2013-11-20 2024-04-02 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
US11982610B2 (en) 2013-11-20 2024-05-14 The Brigham And Women's Hospital, Inc. System and method for sperm sorting
CN104498346A (en) * 2014-12-12 2015-04-08 张群 Micron-hole-based apparatus for rapidly screening and collecting healthy sperms and application method of micron-hole-based apparatus
US11352597B2 (en) 2015-09-28 2022-06-07 My123Baby Medical Limited Medical device for the selective separation of a biological sample
CN105838591A (en) * 2016-04-11 2016-08-10 同济大学苏州研究院 Sperm selection device and selection method based on principle of fly trap
CN106896051A (en) * 2017-03-06 2017-06-27 浙江星博生物科技股份有限公司 A kind of method of human sperm's acrosome reaction ability detection
CN112294408A (en) * 2020-08-24 2021-02-02 成都西囡妇科医院有限公司 A dual-purpose microfluidic sperm collection tube and control method
CN115701450A (en) * 2021-08-02 2023-02-10 邦睿生技股份有限公司 Sperm sorting device and method
WO2024086456A1 (en) * 2022-10-21 2024-04-25 Texas Tech University System Apparatus and method for collection of sperm samples

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Application publication date: 20141015