Archive for May, 2011
Antitumor Immune Response
Posted by admin in Immune System on May 26, 2011
Communication between the immune system and tumor cells takes place via both cell-cell contact-dependent receptor-ligand interactions and released cytokines/chemokines. T lymphocytes of the adaptive immune system learn in the thymus to distinguish various self or altered self-structures from non-self-structures presented as peptides bound to major histocompatibility complex (MHC) class I or class II antigens (pMHC). pMHC molecules represent the antigenic universe to ab-T lymphocytes, both the self and the non-self-repertoire.
Gd-T lymphocytes recognize small phosphorylated molecules or non-classical MHCI antigens in a non-MHC restricted manner, and B lymphocytes recognize tertiary or quaternary structures of antigens using immunoglobulins (Ig). A third type of recognition is used by cells of the innate immune system: natural killer (NK) and natural killer T (NKT) cells recognize lack of expression of self (missing self), i.e., absence or low cell-surface levels of MHCI and/or MHCII molecules Furthermore, antigen-presenting cells (APC) such as dendritic cells (DC), macrophages, and granulocytes can recognize non-self-structures via toll-like receptors (TLR) or C-type lectin receptors (CLRs). Read the rest of this entry »
How to Optimize Your Child’s Immune System
Posted by admin in Children Immune on May 12, 2011
Many people have asked me over the years what I recommend to help strengthen and protect children from getting serious infectious diseases. This article will cover several important aspects of strengthening your child’s immune system. The major function of the child’s immune system is to protect their little bodies against common childhood disease such as whooping cough, rubella, tetanus, typhoid, etc. infection, as well as colds and flu, herpes, hepatitis, etc. Reduced efficiency and poor performance of a child’s immune system has many causes, among which are junk-food diets, devitalised, “chemicalised” as well as antibiotic-containing foods, environmental chemicals, medical drug use, passive smoking, stress, domestic issues, and under-nourishment or nutritional deficiencies – a very common cause of a child’s immune deficiency.
Are you concerned about your child’s poor immune status, does he or she continually get sick each fall and winter? Is there recurrent cough, asthma or eczema? Let’s go over some of the following categories in more detail:
o Psychological: provide a stress free and loving home environment for your child
o Improve your child’s digestion & bowel by avoiding drugs like antibiotics as much as possible.
o Improve the diet through reducing junk foods and known toxins, like aspartame.
o Remove potential offending allergy-stimulating foods – like dairy, wheat, etc.
o Stimulate the body’s recovery with sound nutrition and appropriate supplementation. Read the rest of this entry »