Kupffer cells are specialized macrophages that patrol tiny vessels in the liver called sinusoids, recycling old red blood cells and ingesting pathogens. The endothelium of these vessels is perforated with large holes, allowing the Kupffer cells to migrate into liver tissue at sites of inflammation and damage.
(via fyeahmedlab)
Source: fuckyeahmolecularbiology
Dendritic Cells Activating a Lymphocyte
Here is a beautiful scanning electron micrograph of a human lymphocyte (pink) as it scans the surface of a dendritic cell (blue).
Lymphocytes are white blood cells, of which there are three types: B cells, T cells, and natural killer (NK) cells. Dendritic cells are located in the tissue and are responsible for stimulating the adaptive immune response via the activation of T cells.
(via sfoviayyztomorrowlieswest)
Source: cell.com
In a Humoral Immunity response, the cells do not attack, but create antibodies that will attack.
This involves the B Cells. B Cells are not named “B” because they come from the bone marrow, but because they were originally found in the bura of fabricias in birds. The…
(via medhatter-deactivated20120103)
Source: mama-grizzly
Effyeahimmunology is back, and with a new and fully functioning computer, as well as a shiny new degree. I’m going to reblog some of the immunology posts that happened over the hiatus while I put together some new posts. Feel free to let me know if there’s any particular subject that you’d like to see!
My computer is dead. I’m borrowing a computer right now, but I’ll hopefully have a new one soon. Also, hello to all of our new followers!
Mast cell within collagen fibers in a human eye with conjunctivitis, at 7000x magnification.
by Donald Pottle of The Schepens Eye Research Institute
(via fyeahmedlab)
Source: alchymista
My Grandpa will believe anything, and I’m not sure that he ever reads all of the way through the emails that he forwards. This particular email was about cancer, and so I read it due to morbid curiosity. It is a very dangerous email, as it is mostly filled with ad hominem attacks on medical professionals and pharmaceutical companies (who, truth be told, I am not exactly crazy about). These attacks are meant to create fear and distrust in the reader so that they will no longer listen to the advice of their doctors, or consent to receiving treatment for their cancer. The writer then spouts out selected facts, speculation, and his own conclusion that all people with cancer should self-medicate by eating baking soda instead of receiving medical treatment. He then ends in an offensive rant about “Jew physicians” (I really don’t think that my Grandpa is anti-Semitic, which is why I don’t think that he read the whole email. This just goes to show you how important it is to read things before you forward them).
I think that these sorts of emails are extremely dangerous, because just one person reading this email could believe it and not receive the treatment that they need.
A few “highlights”:
“Folks, this is the only way to be healthy — that is, take care of your own health because the Jew physicians are only interested in taking care of your bank account. When the mighty United States of America has the most expensive health care of any nation and yet still has one of the worst health records, it is time to look carefully at Who is running the health industry and Who is profiting from the sickness and death of the People. Behind it all you will find Jews and more Jews as well as the demented traitors who work for the Jews.”
“Wouldn’t the delusional physicians and the big pharmacology swindlers be embarrassed to find that cancer could be cured with nothing more complicated than ordinary baking soda? Well, no, they wouldn’t be embarrassed because they would be outraged. All of their billions in profits vanishing in a twinkle, would not have these betrayers of Mankind at all happy with such a simple cancer cure. And yet, cancer can be cured with nothing more complicated than ordinary baking soda.”
“Firstly, they are people who admit that they don’t know the cause of cancer or how to cure it. And yet they insist that they be allowed to “practice medicine” anyway! These oncologists admit that no matter what they do, you are going to die anyway, and so why not let them do something since they can make better use of your money than you can.”
“While the greedy physicians and the cancer industry robber barons have been using every imaginable method for treating the symptoms of cancer, and while millions of people have suffered and died under the most astounding variety of mechanical, chemical, bio-technological and radiological absurdities, little progress in curing cancer has actually been made.”
“Secondly, these oncologists with all of their fancy degrees and years of microscopic confusion are really nothing more than disciples of fraud. This fraud is known as “symptomatic medicine”. And these cancer physicians prove their idiocy on a daily basis by classifying cancer as a “disease”. Would it be a joke on them if it was discovered that cancer really is not a disease at all but merely a “symptom” of something else? Hundreds of millions of dying cancer patients would certainly not be laughing. And millions of billionaire Big Pharma swindlers would not be laughing, either. Would it be a joke if it was discovered that cancer is not a disease at all and that these swindling greed-bags were actually mistaking the symptoms for the disease? I don’t think there would be much laughter in finding this to be true; but it is true. And here’s how this simple cure works.”
“The cancer quacks who are known as “modern physicians” (or oncology engineers), all know that there are many things that cause cancer. Does this ring a bell in their mighty brains? No, of course not. If there are many things that cause cancer, then how can cancer be classified as a disease?”
/end rant
Thoughts?
Source: collegiuminvisbileA medical animation depicting Cytotoxic T Cells (See Lesson #2) destroying a tumor.
Neutrophils. Coloured scanning electron micrograph (SEM) of neutrophils, a type of white blood cell (leucocyte). These cells are phagocytic, in that they engulf and digest materials from their surroundings. These cells contain enzymes that are used to digest invading bacteria. They are highly mobile, migrating to areas of tissue damage within the body. Magnification: x2500 at 6x7cm size.
(via fyeahmedlab)
Source: sciencephoto.com
