CN104140950A - Cleavage culture solution and preparation method thereof - Google Patents

Cleavage culture solution and preparation method thereof Download PDF

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Publication number
CN104140950A
CN104140950A CN201410390997.6A CN201410390997A CN104140950A CN 104140950 A CN104140950 A CN 104140950A CN 201410390997 A CN201410390997 A CN 201410390997A CN 104140950 A CN104140950 A CN 104140950A
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China
Prior art keywords
spilting
nutrient solution
egg nutrient
egg
stoste
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CN201410390997.6A
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Chinese (zh)
Inventor
王维华
吕汝举
刘美静
庄巍
王英超
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Shandong Weigao Newlife Medical Device Co Ltd
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Shandong Weigao Newlife Medical Device Co Ltd
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Priority to CN201410390997.6A priority Critical patent/CN104140950A/en
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Abstract

The invention discloses a cleavage culture solution and a preparation method thereof. The cleavage culture solution comprises a composition for processing and cultivating oosperms, a bactericide, a selectively added indicator and selectively added human serum albumin. Various indexes of the cleavage culture solution disclosed by the invention achieve the standard of an in vitro culture solution, the cleavage culture solution is safe to use, strong guarantee is provided for an assisted reproduction technology, and whether the culture solution goes bad or not is easily judged by adding the indicator, therefore, the cleavage culture solution is safe and convenient to use.

Description

Spilting of an egg nutrient solution and preparation method thereof
Technical field
The present invention relates to human assistance reproductive technology, relate in particular to a kind of spilting of an egg nutrient solution and preparation method thereof.
Background technology
Spilting of an egg nutrient solution is cultivated and is widely used in tube-test baby techniques the division of zygote.The object of spilting of an egg nutrient solution is: one is to provide the nutrition of development of fertilized ova; The 2nd, for the growth of zygote provides necessary environment.The purposes of spilting of an egg nutrient solution: laboratory or clinical zygote first day to the cultivation of three days to people under carbon dioxide environment.
At present, the spilting of an egg nutrient solution dependence on import finished product in China's auxiliary procreation technology, the quality of the validity of the high and solution of cost can not well show, if still continue to use after nutrient solution is rotten, will cause irreversible result to experiment or clinical manipulation.
Summary of the invention
The standard that the object of the present invention is to provide a kind of indices to reach vitro culture liquid used safely, be easy to the spilting of an egg nutrient solution that judges that whether nutrient solution is rotten, for auxiliary procreation technology provides strong guarantee.
Spilting of an egg nutrient solution of the present invention, comprises zygote is processed to composition, the sterilant of cultivating.
Described sterilant is gentamicin, concentration 9.5-10.5mg/L.
In described composition, comprise sodium-chlor 90.25-99.75mmol/L, Repone K 2.375-2.625 mmol/L, magnesium sulfate 0.38-0.42mmol/L, glucose 0.19-0.21mmol/L, calcium chloride 0.19-0.21 mmol/L, ethylenediamine tetraacetic acid (EDTA) 0.012-0.014mmol/L, Sodium.alpha.-hydroxypropionate 1.4176-1.5669g/L, Sodium.alpha.-ketopropionate 0.19-0.21mmol/L, sodium bicarbonate 23.75-26.25mmol/L, Dipeptiven 0.95-1.05mmol/L, taurine 0.38-0.42mmol/L, 4-hydroxyethyl piperazine ethanesulfonic acid HEPES 2.375-2.625mmol/L, non-essential amino acid 0.95-1.05%(v/v), gentamicin 9.5-10.5mg/L.
Described non-essential amino acid is one or several in ALANINE, altheine, L-Aspartic acid, Pidolidone, glycine, L-PROLINE, Serine.
The solvent of spilting of an egg nutrient solution adopts ultrapure water.
In spilting of an egg nutrient solution, contain human serum albumin 9.5-10.5%, v/v, can add or the front interpolation of packing in use.
In described spilting of an egg nutrient solution, can also selectivity add indicator phenol red, concentration 4.75-5.25mg/L.
The pH=7.20-7.40 of spilting of an egg nutrient solution of the present invention, osmotic pressure 260-290mOsm/Kg.
The preparation method of spilting of an egg nutrient solution of the present invention, comprises step below:
(1) preparation of basal liquid
A, elder generation proportionally weigh each component, and separated;
B, first load weighted component (except sterilant, selectivity add indicator, sodium bicarbonate, human serum albumin) is dissolved in ultrapure water, in dissolution process, follows liquid after first solid, NaHCO 3the principle finally adding;
C, to adding in step b gained solution load weighted sterilant, selectivity to add indicator and NaHCO 3;
D, the basal liquid that configures is placed to 37 ℃, 5.5% CO 2balance 6-12 hour in incubator, this step is used for regulating PH within the scope of 7.20-7.40.
(2) stoste of spilting of an egg nutrient solution preparation
A, the basal liquid of spilting of an egg nutrient solution is utilized under Bechtop to the membrane filtration degerming of 0.2 μ m, obtain filtrate A;
B, in filtrate A, add human serum albumin, shake or be uniformly mixed, obtain the stoste of spilting of an egg nutrient solution; Or omit this step, the stoste using filtrate A as spilting of an egg nutrient solution, adds human serum albumin as required voluntarily when doctor uses.
(3) processing of spilting of an egg nutrient solution stoste
Under gnotobasis, the stoste of spilting of an egg nutrient solution is carried out to coating-dividing sealing, obtain commercially available spilting of an egg nutrient solution, placed in refrigerator or freezer and preserve.
(4) spilting of an egg nutrient solution detects
Get the spilting of an egg nutrient solution minute installing and detect, test item is that pH value, osmotic pressure, cytotoxicity, intracutaneous stimulation, sensitization, aseptic, pyrogen, bacterial endotoxin, external mouse embryo test to judge that whether spilting of an egg nutrient solution is qualified.
The invention has the beneficial effects as follows, 1, the raw material of spilting of an egg nutrient solution of the present invention is all materials of verified its security, in preparation process, its solvent adopts ultrapure water, and (TOC) is ultralow for the total organic carbon of ultrapure water, has avoided too much affecting because of impurity the result of mensuration.2, use the usually growth of anti-bacteria of antibiosis, if gentamicin is the microbiotic of a kind of wide spectrum, Heat stability is good, in spilting of an egg nutrient solution, add the effectively growth of anti-bacteria of gentamicin.3, the domestic nutrient solution for tube-test baby techniques that also there is no moulding, this formula and preparation method provide strong assurance for domestic tube-test baby techniques, the not clear factor of having avoided external product to bring because of long-distance transport, blending process is simple to operate rationally simultaneously, detect tightly, can provide fresh nutrient solution for reproductive center or scientific research institutions.4, in spilting of an egg nutrient solution, selectivity adds indicator phenol red, phenol red when pH changes colour-change obvious, pH is at 7.20-7.40, in scope, phenol red solution is that pink is to orange red, it when pH value is less than 6.8, is yellow, it when pH value is greater than 8.4, is redness, variable color is obvious, the pH7.20-7.40 of spilting of an egg nutrient solution solution within the scope of this is that pink is to orange red, when spilting of an egg nutrient solution color is not inconsistent therewith, illustrate that this spilting of an egg nutrient solution is rotten, can not be for experiment or clinical, thus avoided using rotten spilting of an egg nutrient solution and the risk that produces.If do not contained phenol red indicator, solution is transparent, limpid, can guarantee before the deadline aseptic and normally use, and needs special concern product stock, transport condition and validity period.
Embodiment
The present invention is described further by the following examples.
One, spilting of an egg nutrient solution formula and preparation method
Table 1 spilting of an egg nutrient solution formula
Note: phenol red in formula is " 0 ", represents not contain in spilting of an egg nutrient solution phenol red; Human serum albumin is " 0 ", represents not add human serum albumin before packing, during use, adds.
The preparation method of spilting of an egg nutrient solution of the present invention, comprises step below:
(1) preparation of basal liquid
A, elder generation proportionally weigh each component, and separated;
B, first load weighted component (except sterilant, selectivity add indicator, sodium bicarbonate, human serum albumin) is dissolved in ultrapure water, in dissolution process, follows liquid after first solid, NaHCO 3the principle finally adding;
C, to adding in step b gained solution load weighted sterilant, selectivity to add indicator and NaHCO 3;
D, the basal liquid that configures is placed to 37 ℃, 5.5% CO 2balance 6-12 hour in incubator, this step is used for regulating PH within the scope of 7.20-7.40.
(2) stoste of spilting of an egg nutrient solution preparation
A, the basal liquid of spilting of an egg nutrient solution is utilized under Bechtop to the membrane filtration degerming of 0.2 μ m, obtain filtrate A;
B, in filtrate A, add human serum albumin, shake or be uniformly mixed, obtain the stoste of spilting of an egg nutrient solution; Or omit this step, the stoste using filtrate A as spilting of an egg nutrient solution, adds human serum albumin as required voluntarily when doctor uses.
(3) processing of spilting of an egg nutrient solution stoste
A, under gnotobasis, the stoste of spilting of an egg nutrient solution is carried out to coating-dividing sealing, obtain commercially available spilting of an egg nutrient solution, placed in refrigerator or freezer and preserve.
(4) spilting of an egg nutrient solution detects
Get the spilting of an egg nutrient solution minute installing and detect, test item is that pH value, osmotic pressure, cytotoxicity, intracutaneous stimulation, sensitization, aseptic, pyrogen, bacterial endotoxin, external mouse embryo test to judge that whether spilting of an egg nutrient solution is qualified.
two, spilting of an egg nutrient solution detection method and result
(1) pH value detects
Get a certain amount of finished product and carry out the value of detection record three times and average as the pH value of final liquid with pH meter, be qualified in scope.
(2) osmotic pressure
Get and on the filter paper that 10 μ L fluid drips enter osmometer (dew point osmometer) probe, probe is pushed to instrument and wait for that detected value is stable, read numerical value, same method detects to average for three times and is the osmotic pressure of this liquid, is qualified in scope.
(3) cytotoxicity
By the regulation of GB/T 16886.5, undertaken, cytotoxicity score should be no more than 1 minute.
(4) intracutaneous stimulates
By the regulation of GB/T 16886.10, undertaken, without intracutaneous irritant reaction.
(5) sensitization
By the regulation of GB/T 16886.10, undertaken, should be without sensitivity response.
(6) aseptic detection
Adopt the membrane-filter procedure of the aseptic detection of Chinese Pharmacopoeia to carry out, the filter membrane after filtration is cultivated and answered asepsis growth in the substratum of bacterium and fungi is aseptic qualified.
(7) pyrogen
According to two appendix XI D prescriptive procedures of Pharmacopoeia of People's Republic of China version in 2010, liquid in vitro fertilization is answered pyrogen-free.
(8) detection of bacterial endotoxin
Adopt the tachypleus amebocyte lysate gel method in the endotoxic detection method of Chinese Pharmacopoeia to carry out, be judged to that to be surely less than 1.0EU/mL qualified;
(9) external mouse embryo test
1. superovulation
Select female mouse in 6 ~ 8 week age, through abdominal injection PMSG 10 IU/ only; 48 h by abdominal injection hCG 10 IU/ only, the injection hCG same day female mouse with the male mouse of strain, mate and spend the night.
2. prepare culture dish
Cultivate the front liquid droplet of preparing some amount 30~50 μ L sizes in Tissue Culture Dish of embryo, surface coverage is cultivated with oil, at CO 2in incubator, pre-equilibration is 4 ~ 18 hours.
3 mouse embryos gather
Mate and check mating situation the next morning, select to see that bolt mouse is standby.
1-cell stage is collected: after injection hCG, after 18 to 22 hours, put to death and see the female mouse of bolt, at ampulla of uterine tube, collect 1-cell stage.The cotton-shaped zygote group of collecting is placed into 37 ℃ to shift to an earlier date in preheated Unidasa, when ovarian cumulus around of embryo and granulosa cell is digested shift immediately, clean after separated after, pick out the fertilization embryo of normal morphology, transfer in trial-product spilting of an egg nutrient solution droplet, for 1-cell mouse embryo, detect test.
4 vitro culture
Employing micro drop method is cultivated, and the mouse embryo of collecting is divided into a positive controls, a negative control group and a trial-product group at random, is placed in Balanced nutrient solution, in 37 ℃, and 5% CO 2, in the incubator of saturated humidity, cultivate.Every group of mouse embryo number is no less than 50.
5 test-results
The external cultivation respectively after 96 hours of 1-cell stage recorded blastaea quantity.
Observation index: blastaea morphologic observation.
Acceptable value:
1) the Blastocyst formation rate of positive controls by statistics Epidemiological Analysis significantly lower than negative control group;
2) Blastocyst formation rate >=80 % of negative control group.
(10) detected result
Project Formula 1 Formula 2 Formula 3 Formula 4
PH value 7.33 7.35 7.35 7.33
Osmotic pressure mOsm/Kg 265 273 280 270
Cytotoxicity Qualified Qualified Qualified Qualified
Intracutaneous stimulates Without intracutaneous, stimulate Without intracutaneous, stimulate Without intracutaneous, stimulate Without intracutaneous, stimulate
Sensitization Without sensitivity response Without sensitivity response Without sensitivity response Without sensitivity response
Pyrogen Pyrogen-free Pyrogen-free Pyrogen-free Pyrogen-free
Aseptic detection Aseptic Aseptic Aseptic Aseptic
Detection of bacterial endotoxin Qualified Qualified Qualified Qualified
External mouse embryo test Blastaea qualification rate 82% Blastaea qualification rate 86% Blastaea qualification rate 81% Blastaea qualification rate 85%

Claims (8)

1. spilting of an egg nutrient solution, is characterized in that: comprise zygote is processed to composition, the sterilant of cultivating.
2. spilting of an egg nutrient solution according to claim 1, is characterized in that, described sterilant is gentamicin, concentration 9.5-10.5mg/L.
3. spilting of an egg nutrient solution according to claim 1, it is characterized in that, in described composition, comprise sodium-chlor 90.25-99.75mmol/L, Repone K 2.375-2.625 mmol/L, magnesium sulfate 0.38-0.42mmol/L, glucose 0.19-0.21mmol/L, calcium chloride 0.19-0.21 mmol/L, ethylenediamine tetraacetic acid (EDTA) 0.012-0.014mmol/L, Sodium.alpha.-hydroxypropionate 1.4176-1.5669g/L, Sodium.alpha.-ketopropionate 0.19-0.21mmol/L, sodium bicarbonate 23.75-26.25mmol/L, Dipeptiven 0.95-1.05mmol/L, taurine 0.38-0.42mmol/L, 4-hydroxyethyl piperazine ethanesulfonic acid HEPES 2.375-2.625mmol/L, non-essential amino acid 0.95-1.05%, v/v, gentamicin 9.5-10.5mg/L.
4. spilting of an egg nutrient solution according to claim 3, is characterized in that, described non-essential amino acid is one or several in ALANINE, altheine, L-Aspartic acid, Pidolidone, glycine, L-PROLINE, Serine.
5. spilting of an egg nutrient solution according to claim 1, is characterized in that, the solvent of spilting of an egg nutrient solution adopts ultrapure water.
6. according to the spilting of an egg nutrient solution described in claim 1-5 any one, it is characterized in that, in described spilting of an egg nutrient solution, contain human serum albumin 9.5%-10.5%, v/v, can add or the front interpolation of packing in use.
7. according to the spilting of an egg nutrient solution described in claim 1-5 any one, it is characterized in that, in described spilting of an egg nutrient solution, selectivity adds indicator phenol red, phenol red concentration 4.75-5.25mg/L.
8. the method for preparing claim 1-7 item spilting of an egg nutrient solution, is characterized in that comprising step below:
(1) preparation of basal liquid
A, elder generation proportionally weigh each component, and separated;
B, first the load weighted component the indicator adding except sterilant, selectivity, sodium bicarbonate, human serum albumin is dissolved in ultrapure water;
C, to adding in step b gained solution load weighted sterilant, selectivity to add indicator and NaHCO 3;
D, the basal liquid that configures is placed to 37 ℃, 5.5% CO 2balance 6-12 hour in incubator;
(2) stoste of spilting of an egg nutrient solution preparation
A, the basal liquid of spilting of an egg nutrient solution is utilized under Bechtop to the membrane filtration degerming of 0.2 μ m, obtain filtrate A;
B, in filtrate A, add human serum albumin, shake or be uniformly mixed, obtain the stoste of spilting of an egg nutrient solution; Or omit this step, the stoste using filtrate A as spilting of an egg nutrient solution, adds human serum albumin as required voluntarily when doctor uses;
(3) processing of spilting of an egg nutrient solution stoste
Under gnotobasis, the stoste of spilting of an egg nutrient solution is carried out to coating-dividing sealing, obtain commercially available spilting of an egg nutrient solution, placed in refrigerator or freezer and preserve;
(4) spilting of an egg nutrient solution detects
Get the spilting of an egg nutrient solution minute installing and detect, test item is that pH value, osmotic pressure, cytotoxicity, intracutaneous stimulation, sensitization, aseptic, pyrogen, bacterial endotoxin, external mouse embryo test to judge that whether spilting of an egg nutrient solution is qualified.
CN201410390997.6A 2014-08-08 2014-08-08 Cleavage culture solution and preparation method thereof Pending CN104140950A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105994037A (en) * 2016-05-24 2016-10-12 福建师范大学 Goldfish egg indoor hatching culture method
CN108728403A (en) * 2018-06-05 2018-11-02 瑞柏生物(中国)股份有限公司 A kind of spilting of an egg culture solution and preparation method thereof
CN108753690A (en) * 2018-06-05 2018-11-06 瑞柏生物(中国)股份有限公司 One step culture solution of one kind and preparation method thereof
CN108753691A (en) * 2018-06-05 2018-11-06 瑞柏生物(中国)股份有限公司 A kind of blastocyst culture liquid and preparation method thereof
CN110669725A (en) * 2019-11-08 2020-01-10 广州达瑞生殖技术有限公司 Cleavage embryo culture solution and preparation method thereof
CN113755429A (en) * 2021-09-29 2021-12-07 中国科学院苏州生物医学工程技术研究所 Composition for preparing cleavage culture solution, cleavage culture solution and preparation method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
秦妍: ""不同培养液体系对小鼠卵母细胞孤雌激活的影响"", 《中国优秀硕士学位论文全文数据库-医药卫生科技辑》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105994037A (en) * 2016-05-24 2016-10-12 福建师范大学 Goldfish egg indoor hatching culture method
CN108728403A (en) * 2018-06-05 2018-11-02 瑞柏生物(中国)股份有限公司 A kind of spilting of an egg culture solution and preparation method thereof
CN108753690A (en) * 2018-06-05 2018-11-06 瑞柏生物(中国)股份有限公司 One step culture solution of one kind and preparation method thereof
CN108753691A (en) * 2018-06-05 2018-11-06 瑞柏生物(中国)股份有限公司 A kind of blastocyst culture liquid and preparation method thereof
CN110669725A (en) * 2019-11-08 2020-01-10 广州达瑞生殖技术有限公司 Cleavage embryo culture solution and preparation method thereof
CN113755429A (en) * 2021-09-29 2021-12-07 中国科学院苏州生物医学工程技术研究所 Composition for preparing cleavage culture solution, cleavage culture solution and preparation method

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