Page 5 - B Cells News Today

Themselves, they take up the nanopart. the particles get your cells to produce lots of spike protein, spiking the most toxic part of the virus. the immune cells rush into the lymph system and end up in the spleen, which is where you want them to be to produce the antibodies, that the goal. so theyve designed it and theyre very happy to see that they end up in the spleen making lots of spike protein, and then invoking an immune response that produces antibodies by the b cells. the problem is thos...

>> if you get vaccinated with the moderna vaccine and then get boosted, you get a nice good level of protection with antibodies against the original covid virus strain. and also against the omicron strain. but what we see by six months is that those levels begin to fall. >> so he just gave that six-month sort of timeline here. should people expect to need another booster in six months? >> i dont think we know the answer to this yet. we definitely know that the first two doses are not enough. tha...

Have two studies coming out in the last week that look at parts of the immune system that are much harder to study than simple antibody levels which you may know, you can look at just with a drop of blood. these studies looked at memory t and b cells and these are cells that once they encounter the infection, sort of go into hiding and if the infection comes out again they get super activated and start pumping out all kinds of things. what these studies showed is the memory cells that were induc...

With the majority of the world population being either immunized against COVID-19 or having recovered from infection, people have rightly begun to ask: How long will the immunity provide immune protection?

Because COVID-19 is a relatively new virus, researchers still aren’t sure exactly how long vaccines and prior infections provide protection.

Because COVID-19 is a relatively new virus, researchers still aren’t sure exactly how long vaccines and prior infections provide protection.

Some of the omicron variant’s unique properties – such as its ability to spread rapidly while causing milder COVID-19 infections – could usher in a new phase of the pandemic.

Some of the omicron variant’s unique properties – such as its ability to spread rapidly while causing milder COVID-19 infections – could usher in a new phase of the pandemic.

A new Stemona alkaloid glycoside derivative, 6-hydroxy-5,6-seco-stemocurtisinoside (4), was isolated from the ethanolic extract of the aerial parts of Stemona curtisii Hook.f., together with stemocurtisine (1), (11Z)-1',2'-didehydrostemofoline (2) and 6-hydroxy-5,6-seco-stemocurtisine (3). Whereas, stemocurtisine (1), stemocurtisinol (5) and oxyprotostemonine (6) were isolated from the roots. Their structures were elucidated using 1D and 2D NMR spectroscopy as well as MS experiments. T...

Having a range of immune cells that target different parts of the virus appears to make disease milder and could protect against future variants.