"The T cell is like a quarterback, interpreting the enemy's composition and signaling other cells to get into action. B cells eliminate enemies that exist outside of cells, such as viral organisms, which may have multiplied inside a normal cell and broken out and are now on the prowl for new healthy cells."
"HIV infects a specific type of white blood cell, called a T-cell, T for thymus, a gland. It is sometimes known as a helper cell."...
"The function of the T-cell is like a music conductor, that tells other white blood cell what to do. "
"Each T lymphocyte, or T cell, is like a specially trained detective. The T cell examines the evidence that is exposed by the APC. When specific T cells come into contact with the ragweed pollen fragment on the APC and recognize it as foreign, an army of specialized T cells called "helper" cells (actually TH2 cells) is activated, thus releasing chemicals (cytokines) that stimulate B lymphocytes. B lymphocytes produce IgE antibodies that bind to the allergens (such as the pollen fragment). "
"Basically, the scientists have discovered a protein (EAT-2) that makes a very important part of your immune system lazy. Imagine the NK/T-cell is like a cop, the EAT-2 protein is a doughnut, and herpes is a career criminal on the loose. A cop who eats too many doughnuts isn't going to be very good at chasing down a sneaky criminal... But if you can keep the cop from eating the doughnuts -- by destroying the Krispy Kreme factory or just hijacking the doughnut truck -- the cop is a lot more likely to be in the kind of shape that will allow him to track down and arrest the criminal."
" The fat cell is like a balloon and when we let the contents out of the fat cell, it is like releasing the air out of the balloon and the balloon or fat cell diminishes in size. Therefore, our waistline, our saddlebags, our neck/bra/or arm fat shrink in size. "
"You could say the typical human fat cell is like Ebenezer Scrooge. It is very interested in increasing supply and very reluctant to let any go. If you try to demand or steal from Scrooge, it makes him even worse. This is exactly how your adipocytes respond when you start an intensive diet and exercise program. The point of the Dickensonian tale is useful for us. Scrooge can be persuaded to want to get along with everyone and share the wealth. The same can be done with fat cells."
"First, lets understand a fat cell: a fat cell is like a biologic battery - its function is to store excess energy and release it later when needed. Fat cells have two receptors, like an on and off button. The 'alpha' receptor responds to the body's excess insulin and sugar to promote fat storage. The beta receptor is stimulated during times of fasting, exercise and starvation to release the fat. In lipo-reduction, we want to block the alpha (block storage) and stimulate the beta (accentuate burning). The pharmaceutical and naturopathic medications in Mesotherapy lipo-reduction are used in combination to do exactly this process. "
It like a grape when it expansive and like a raisin when it's looses it's mass.
"A mast cell is like a basketball covered in ping pong balls. And it has all these Y- shaped dandelion heads on it. The foot of the Y is on the basketball, and their arms are reaching out to find invaders. If they find something you have become sensitized to, they latch on and the Mast cell "degranulates"--- goes off like a bomb. It can release some 60 different things, including histamines, and inflammatory elements are called onto the scene. "
"The mast cell is like the gunpowder in a firecracker, the antibody is like the fuse which activates the firecracker & the protein is like the spark which lights the fuse."
"A mast cell is like a mouse trap loaded with two ping pong balls."
"A mast cell is like a pinata that you don't want to open, with histamine being a very itchy type of candy."
Some guests are polite and work with the host house to keep the house in order and running well(Mutualism). Some guest come in have a wild party reproduce like crazy and then break the walls down on the way out(HIV). There are many types of houses and many types of guest as indicated by the linked wiki article.
"A plant cell is like a water balloon in a cardboard box: The water in the balloon pushes outward and the box pushes inward, creating a strong building block that let plants stand tall. In the dwarf mutant, RG-II strands don't cross-link so the box - or cell wall - is more like soggy cardboard"
"The situation is analogous to those entrance and exit exams that teenagers take to get out of high school and into college. The T cell threshold is like an exit requirement for graduation-one needs only score a minimal threshold to graduate and all students who demonstrate a simple competency in the subject matter will pass. B cell selection is more like the SAT-the higher the score, the better the chances of getting into college. "
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.