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Doctor insights on: Antibody That Can Cross The Placenta

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Dr. Martin Raff
Board Certified, Infectious Disease
50 years in practice
103M people helped
1

1
Streptococcus milleri in the womb/placenta should this have been detected during my pregnancy? Me and baby recieved antibiotic therapy but worried no

Streptococcus milleri in the womb/placenta should this have been detected during my pregnancy? Me and baby recieved antibiotic therapy but worried no

Strep milleri: This organism can be quite malignant, if in fact it is causing infection. It is not possible to tell whether its presence could have been detected earlier without more info on your symptoms and signs. Hope that you and your baby are getting along well and will recover uneventfully from anything this may have caused. ...Read more

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Dr. Aaron Milstone
Board Certified
21 years in practice
1M people helped
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Antibody (Definition)

An antibody is a protein the body's immune system makes to identify potentially harmful substances in the body. Antibodies attach to the substance on a molecular level and mark it so the immune ...Read more


Dr. James Ferguson
Board Certified, Pediatrics
40 years in practice
144M people helped
2

2
If a mother with herpes transfers antibodies to the fetus in utero, how long do the antibodies last in fetus for protection after birth?

If a mother with herpes transfers antibodies to the fetus in utero, how long do the antibodies last in fetus for protection after birth?

May not protect: Maternal genital herpes is a problem.Periodic flares can result in viral sheading and if this happens during delivery the virus can pass to the newborn.A neonatal encephalitis may occur within weeks with devistating consequences.Some will plan a c-section delivery prior to labor to avoid this possibility.A thorough discussion of the issue with the OB is worth having. ...Read more

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Dr. Aaron Milstone
Board Certified
21 years in practice
1M people helped
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Dr. James Ferguson
Board Certified, Pediatrics
40 years in practice
144M people helped
3

3
What viruses can cross the placenta and cause congenital infections?

What viruses can cross the placenta and cause congenital infections?

You name it: Any virus that has a blood stream phase can infect the fetus when the mother is infected. The German measles is one of the worst classical examples. Yet any form of hepatitis, the flu, chickenpox, mono, cytomegalovirus, all can infect both.The effect on the fetus depends on the timing during the pregnancy and various characteristics of the germ. ...Read more

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Dr. Pamela Pappas
Board Certified, Psychiatry
36 years in practice
135M people helped
4

4
Does THC cross the placenta?

Does THC cross the placenta?

Yes: Yes, thc crosses the placenta. When pregnant women smoke marijuana, there is an increased risk for premature birth and lower birth weight, length and head circumference. Babies that are born prematurely or with low birth weight have higher rates of infant deaths, learning problems or other disabilities. ...Read more

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Dr. Aaron Milstone
Board Certified
21 years in practice
1M people helped
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Dr. James Ferguson
Board Certified, Pediatrics
40 years in practice
144M people helped
5

5
Does miralax cross the placenta?

No: This osmotic agent remains in your bowel and never enters the blood. As such, it can never reach baby. ...Read more

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Dr. Martin Wodi
Board Certified, Pharmacology
25 years in practice
1M people helped
6

6
Is it true that lead doesn't cross placenta until 12 weeks?

Is it true that lead doesn't cross placenta until 12 weeks?

No: There is no maternal-fetal barrier to lead and so prenatal exposure to lead prior to pregnancy is just as deleterious as exposure during pregnancy. In fact, lead has been found in fetuses as early as 12 weeks. ...Read more

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Dr. Jeffrey Rosch
Board Certified, Allergy and Immunology
43 years in practice
565K people helped
7

7
Are hypersensitivity reactions are caused by the cross linking of antibodies?

On the cell surface.: Ige mediated allergic reactions involve 2 ige antibodies directed against the same allergens in close proximetry on the surface of mast cells or basophils. The antibody then fits in between the 2 ige antibodies. That activates the cell to release mediators (chemicals) that directly or indirectly by activating other cells resulting in allergy symptoms. The ige antibodies themselves do'nt cross link. ...Read more

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Dr. Glenn Messina
Board Certified, Aesthetic Medicine
29 years in practice
1M people helped
8

8
I was told I had too many antibodies in my blood what does this mean am I sick they took blood and sent it to the Red Cross incase I needed blood?

I was told I had too many antibodies in my blood what does this mean am I sick  they took blood and sent it to the Red Cross incase I needed blood?

Alot of transfusions: Some persons develop antibidoies if they receive multiple transfusions. This is not unheard of in persons who get a transfusion every few months for medical reasons. It makes it a bit more difficult te find an adequate blood donor that's why they send the sample. Its okay they will find a donor the vat majority of the time ...Read more

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Dr. Peter Baumann
Board Certified, Obstetrics and Gynecology
2015 years in practice
1M people helped
9

9
Can tetrogens cross to an embryo at implantation? Or does this only happen once the placenta is formed?

Can tetrogens cross to an embryo at implantation? Or does this only happen once the placenta is formed?

Yes, they can: Placenta and embryo evolve from the same structure, which is the clump of cells that originate from the division of the fused sperm/egg. Without blood supply from the mother, these events could not happen. So, with the blood to the evolving fetus/placenta, come the teratogens to the embryo. ...Read more

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Dr. Ankush Bansal
Board Certified, Internal Medicine
11 years in practice
33M people helped
10

10
Does vicidin cross placenta and what studies have been done to deem safe during pregnancy? 

Does vicidin cross placenta and what studies have been done to deem safe during pregnancy? 

See below: Vicodin is pregnancy category c. This means animal studies have shown harm to the fetus but no human studies have definitely shown benefit or harm. Therefore, you have to weigh the benefits with the risks. For a med like this, it's likely another med can be substituted. ...Read more

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Placenta (Definition)

The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via ...Read more


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Dr. Aaron Milstone
Board Certified,
21 years in practice
1M people helped
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