Placenta protects fetus from new coronavirus infection from mother
- Why are vegetarians more likely to suffer from depression than meat eaters?
- Small wireless device implanted between skin and skull helps kill cancer cells
- Will the mRNA vaccine that can cure cancer come out near soon?
- Allogeneic T-cell therapy set for landmark first approval
- Boston University denies that the new COVID strain they made has 80% fatality rate
- A new generation of virus-free CAR-T cell therapy
Placenta protects fetus from new coronavirus infection from mother
- First human trial of HIV gene therapy: A one-time cure will be achieved if successful!
- New breakthrough in CAR-T cell therapy: Lupus erythematosus patients achieved treatment-free remission for up to 17 months
- How long can the patient live after heart stent surgery?
- First time: Systemic multi-organ recovery after death
- Where do the bacteria in the human gut come from?
Nature sub-journal: placenta protects fetus from new coronavirus infection from mother.
While most pregnant women infected with the new coronavirus are asymptomatic or have mild symptoms, studies have shown that pregnant women may be at higher risk for severe illness .
However, it is unclear how asymptomatic or mild infection affects the maternal-fetal intersection and fetal health.
On January 18, 2022, researchers from the National Institutes of Health (NIH) published a research paper titled: Maternal-fetal immune responses in pregnant women infected with SARS-CoV-2 in Nature Communications .
The study , which analyzed 12 women who tested positive for the new coronavirus (SARS-CoV-2) during pregnancy, showed that exposure to the new coronavirus during pregnancy caused a placental inflammatory response involving both maternal and fetal cells, but not infection placental tissue.
To fully understand the impact of contracting the new coronavirus during pregnancy, the research team enrolled 12 pregnant women who tested positive for the new coronavirus and 11 healthy controls.
Of the women who tested positive, 8 had asymptomatic infection, 1 had mild disease, and 3 had severe disease requiring oxygen.
The team observed a distinct pro-inflammatory immune response in both the placenta and the blood of the mother and fetus following maternal virus exposure .
They found that although maternal antibodies against the new coronavirus were passed to the fetus through the placenta, neither fetal antibodies nor the new coronavirus were found in the placenta.
The authors suggest that this suggests that the placenta protects the fetus from infection .
The research team pointed out that the results of this study improve our understanding of the maternal-fetal immune response after infection with the new coronavirus, and suggest that vertical transmission from mother to fetus may be extremely rare .
However, they also cautioned that the conclusion should be interpreted with caution, as the number of pregnant women with severe infection with the COVID-19 in the study was very limited.
Reference :
https://www.nature.com/articles/s41467-021-27745-z
Placenta protects fetus from new coronavirus infection from mother
(source:internet, reference only)
Disclaimer of medicaltrend.org