Do noninvasive DNA, go to the identification center or go to the
different gestational weeks can choose different identification methods
prenatal paternity testing can be divided into villus biopsy, amniocentesis and noninvasive paternity testing according to different gestational period and samples. The accuracy of these three kinds of identification is consistent with that of the identification after birth
Ankang paternity testing center can do
villus biopsy prenatal paternity testing
pregnant women can extract villus through villus biopsy for identification at 10-15 weeks of pregnancy
amniocentesis for prenatal paternity test
after 16 weeks of pregnancy, amniocentesis can be used to extract amniotic fluid for identification
noninvasive paternity test
maternal venous blood can be extracted from pregnant women 8 weeks before the birth of the baby.
noninvasive paternity test is to extract maternal venous blood, free the DNA of the child and compare it with the suspected father, so as to know the biological father of the fetus
noninvasive DNA is a routine screening method for Down's syndrome.
noninvasive DNA paternity testing
1. With the development of society and the progress of science and technology, fetal paternity testing technology has also made considerable development and progress, which is a qualitative leap from conventional to noninvasive. Fetal paternity test can be divided into the following two types:
1. Routine fetal paternity test
amniotic fluid was collected by amniocentesis, or fetal villi were collected by chorionic puncture, cells were extracted from the collected amniotic fluid or villi, and the paternity relationship was confirmed by fetal DNA (deoxyribonucleic acid)
the time of collecting villi was 8-13 weeks of pregnancy, while the time of extracting amniotic fluid was generally between 14-28 weeks of pregnancy< 2. Noninvasive fetal paternity test
only maternal peripheral blood was collected, and free DNA fragments (including fetal free DNA) in maternal peripheral plasma were sequenced and bioinformatically analyzed by new generation DNA sequencing technology, from which fetal genetic information was obtained to confirm the paternity relationship
noninvasive fetal paternity test has a long pregnancy period, and can be detected from 5 weeks of pregnancy to the birth of the baby
2. What is the accuracy of fetal paternity test
the accuracy of both routine and noninvasive fetal paternity testing is the same, the accuracy of positive parent-child relationship is more than 99.99%, and the accuracy of negative parent-child relationship is close to 100%
now the technology of noninvasive fetal paternity testing is very mature, detecting 13000 + loci, with higher detection accuracy.
No
noninvasive DNA prenatal detection technology only needs to take pregnant women's venous blood, use the new generation of DNA sequencing technology to sequence the free DNA fragments in maternal peripheral plasma (including fetal free DNA), and analyze the sequencing results for biological information, from which we can get the genetic information of the fetus, so as to detect whether the fetus has three major chromosomal diseases
Serological screening showed that the risk value of fetal common chromosome aneuploidy was between high risk cut value and 1 / 1000 Those who missed the best time of serological screening, but required to assess the risk of trisomy 21, trisomy 18 and trisomy 13 There were contraindications of interventional prenatal diagnosis (such as threatened abortion, fever, bleeding tendency, active period of chronic pathogen infection, Rh negative blood group of pregnant women, etc.)noninvasive paternity test is to extract fetal DNA from amniotic fluid or venous blood of pregnant women (also known as noninvasive paternity test) and fetal villi when the father in the fetal genetic sense is unknown, and confirm the paternity by identifying fetal DNA (deoxyribonucleic acid)
pregnant women can choose to extract chorionic villus or amniotic fluid according to the pregnancy period. For the sake of safety, they must choose the top three obstetrics and gynecology hospital for operation. Generally, pregnant women can collect fetal villi from 10 to 13 weeks of pregnancy, amniotic fluid from 16 to 24 weeks, and amniotic fluid can be collected from 16 to 30 weeks of mature obstetrics and gynecology hospital
extended data
the importance of prenatal noninvasive DNA examination:
China is a country with high incidence of birth defects. In about 16 million newborns every year, congenital stupidity and disability account for 4% - 6% of the total annual birth population, with a total of 1.2 million, accounting for one fifth of the world's more than 5 million children with birth defects every year
the Chinese government pays about 8.2 billion yuan annually for medical and social relief for children with Down's syndrome. Most of the surviving birth defects are life-long disability or mental retardation, which can not be cured, causing a serious economic burden to the society, and the psychological burden and mental pain to the family can not be measured by money
the clinical application of noninvasive DNA prenatal detection technology will make a great contribution to the prenatal detection of birth defects in China
From the perspective of applicants, there may be such situations: unmarried men and women cohabit to cause pregnancy, the man does not acknowledge the account, and the woman claims for support e to civil disputes, which needs proof and identification; Normal pregnancy between husband and wife, the man suspected that there was a problem with the child, put forward identification; When a married woman is pregnant, the man has evidence to prove that his lover has altery with a third party, and asks for alimony and identificationif the husband and wife divorce normally, the husband may not fulfill the obligation of support, and the woman will make an appraisal; There is also the need for some women to inherit the estate, such as prenatal identification
paternity testing generally requires both men and women to be present at the same time or women to bring their own samples. In this group of testing groups who are confused about their children's father, at least 70% of them have had extramarital affairs or sexual promiscuity. And the final identification results also show that their children are not necessarily "original"
even for biological father and son (daughter), the probability of 100% paternity basically does not exist, so the international practice generally considers that the probability of paternity is more than 99.73%, which supports the existence of parent-child relationship
at present, there are a lot of non-invasive DNA institutions in China, which were developed in the past two years. Technology is relatively mature, and now what we are fighting for is service.... The laboratory of Ankang paternity testing center has good service all over the country.
1. Online consultation, you can call the testing institution of our center to get the information about noninvasive DNA paternity testing before you do the testing. You must be clear about the certificates and relevant proceres that you need to show when you do the testing. After you understand clearly, you can apply for noninvasive DNA paternity testing in advance, It is convenient for the staff to arrange the appraisal time in advance
2. After consulting, you can apply for entrusted appraisal, and make preparations first
3. The pregnant women should be accompanied by professional personnel to take peripheral blood samples in regular hospitals and send them to our center as soon as possible
4. Payment can be made by bank transfer or postal remittance, either in cash or by credit card
5. DNA detection: send the collected maternal peripheral blood samples to our center for accurate detection
6. For the issuance of the report, it takes 15 working days for the man to provide routine samples for testing, and 15 working days for the man to provide special samples for testing (calculated from the date of receiving samples)
the noninvasive DNA prenatal detection technology only needs to take pregnant women's venous blood, use the new generation of DNA sequencing technology to sequence the free DNA fragments in maternal peripheral plasma (including fetal free DNA), and analyze the sequencing results for biological information, from which the genetic information of the fetus can be obtained, so as to detect whether the fetus has three major chromosomal diseases
the results of non-invasive DNA can be said to be reliable in formal identification institutions and hospitals, and it is detected and identified by medical means, and there is no arbitrary charge
special reminder:
the noninvasive DNA process does not need to extract additional fetal samples, but only needs 15ml peripheral blood of pregnant women. The process is relatively simple compared with fetal paternity test. If you want to know more about noninvasive DNA paternity test, you can call the staff of our center.
the fees charged by appraisal institutions in different regions may be slightly different, and the pricing of appraisal institutions shall prevail
For noninvasive DNA paternity test, 10 ml of venous blood and 2 ml of suspected father's venous blood are needed for pregnant womenAnkang DNA identification center can do
one, non-invasive DNA prenatal screening
1800 yuan
the third generation of non-invasive DNA prenatal screening technology is after 8 weeks of pregnancy, directly through the extraction of 10 ml of maternal blood, using maternal plasma free fetal DNA, to get the risk rate of fetal aneuploidy. It is used to detect trisomy 21 (Down's syndrome), trisomy 18 (Edwards syndrome) and trisomy 13 (PatoW's syndrome)
the technology can greatly rece the psychological burden of pregnant women, and do not worry about abortion and other injuries caused by puncture stimulation. The results can be obtained two weeks after sampling, which is faster than amniocentesis and more accurate than prenatal serological screening
Second, noninvasive DNA identification6000 yuan
venous blood
< UL >1. The pregnancy cycle of pregnant women is 8-26 weeks, and the best extraction is 11-26 weeks. Both men and women need more than 5ml of venous blood
2. When pregnant women are at 11-26 weeks of gestation, the fetal DNA content in the blood of pregnant women reaches the detection standard. The fetal DNA data are detected by high-throughput sequencer and compared with the father's DNA to determine whether the fetus and the man have a parent-child relationship
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