top 3 KILLER diseases

after some research, the top 3 killer diseases are heart disease, cancer, last but not least, stroke.

heart disease, it is the cause for some 1.5 lives( in America alone ) every single year. caused by fatty plague build-up in the artery. the likely cause for this is a bad diet of oily and high-cholesterol foods. shockingly, almost half of the people who die from heart disease do not have any symptoms to start with, they just continue with their lives until it happens. for those who are lucky and have symptoms to warn them, this is what is happening. the artery is blocked. so the heart corrects It by lowering its demands, by first trying to tell u through a sharp pain in your chest. as the contractions of the heart weakens, and heart beat becomes irregular, nausea and cold sweat will start. if this continues, parts of the heart shut down. when the heart does not get enough blood, that part will die, then... HEART ATTACK!!!

cancer, 1/3 is poor lifestyle, 1/3 is smoking, and the final 1/3 is by inevitable genetic factors. what is cancer anyway, usually thought to be a disease only affecting the old and weak, but today it affects 25% of all America's population. it is caused when our own cells mutate to attack the very body it was made to protect. it only takes one cell. this cell will divide and multiply at an abnormally fast rate, it penetrates previously, imperveable tissue. if detected and cured early, it can allow the victim to live. But if the mutated cell continues with the rapid division and the destruction of the body, the victim will eventually die.

lastly, stroke. frightening in a way that u know your brain is failing you and you are 100% aware of the alteration of your own brain. in the case of a stroke, if you don't die, you will have to live with a disability. with the disability, which could last for years, you will not be able to take care of yourself in the slightest way at all. the possibility of this, 20%. hemorrhage is a weakened artery wall is the usual cause for a stroke. it is swift, without warning, and does the most damage, (if the victim actually lives through it). stroke is more likely to be expected by the old, over 50, this kind of stroke is swift. half your face sags, speech is slurred. but post symptoms will be loss of conscience, even if it is only for a couple of minutes. mental confusion and weakening limbs follow. a rich saturated fat diet will result in a higher stroke chance.

Down sydromne

how?

Down syndrome is caused by the translocation trisomy of the 21st chromosone. when this hapeens, the 21st chromosone attaches itself to another chromosone, which is usually 14. If the resulting sperm or ovum receives a chromosome 14 (or another chromosome), with a piece of chromosome 21 attached and retains the chromosome 21 that lost a section due to translocation, then the reproductive cells contain the normal or balanced amount of chromosome 21. While there will be no Down syndrome associated characteristics exhibited, the individual who develops from this fertilized egg will be a carrier of Down syndrome. Genetic counseling can be sought to find the origin of the translocation.

when?

Most of the time, the occurrence of Down syndrome is due to a random event that occurred during formation of the reproductive cells, the ovum or sperm. Down syndrome is not attributable to any behavioral activity of the parents or environmental factors. Regardless of maternal age, there will be 1 in 100 baby's born with down syndrome.

whats wrong?

though there are actually many synptoms one may have when he/she has down syndrome. though all those affected may not suffer every single synptom but there are a few more common ones: decreased muscle tone at birth, asymmetrical or odd-shaped skull, round head with flat area at the back of the head, small skull, slanting eyes, small mouth with protruding tongue, broad short hands, single crease on the palm, retarded growth and development, delayed mental and social skills (mental retardation).

any cure???

sadly, there are no cures for down syndrome, because it starts from the chromosones. Thus all doctors can do is to curb the symptoms, through means like surgery, medication, counselling and regular check-ups and screenings. of all, regular check-ups are the most important. people with down syndrome have more chance of life threatening diseases.

conclusion???

Down syndrome is good in its own ways. people with this case should noy be seen as retards, jokes or sad cases.

stem cells

what are stem cells.There are two major types of stem cells, embryonic and adult. Embryonic stem cells are located in the inner mass of a blastocyst (an embryo at a very early stage of development), and they eventually give rise to every cell type of the adult organism. Adult stem cells are found in some tissues in the adult body, such as the epidermis of the skin, the lining of the small intestine, and the bone marrow, where they serve in the regeneration of old or worn tissue. In cancer treatment, blood-forming adult stem cells are routinely harvested from bone marrow, stored, and then reinfused into patients to replace blood cells destroyed by chemotherapy or radiation therapy. This potential for replacing damaged tissues has aroused great interest in using embryonic stem cells to treat a number of other conditions, such as Parkinson disease, severe burns, and damage to the spinal cord. Mouse embryonic stem cells are widely used to create genetically modified mice that serve as models for investigating human disease.

Cancer and stem cell biology researchers at the University of Colorado are launching the nation’s first program focused on identifying and testing drugs that target and destroy cells thought to be at the root of cancer — cancer stem cells (CSCs).

chromosones

A chromosome is an organized structure of DNA and protein that is found in cells. It is a single piece of coiled DNA containing many genes and redulatory elements. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions. The word chromosome comes from the Greek word (chroma, color) and (soma, body) due to their property of being very strongly stained by particular dyes.

having extra chromosones is usually more negative than it is positive. our cells are made to check for 23 cells and not 24, thus leading to many problems such as sterility, and with an extra chromosone, down syndrome will occur.

down syndrome is the only trisomy that last more than 2-3 years, other than down syndrome, there are others as well, such as 'Edward's Syndrome', 'Patau Syndrome', and derived fron the different chromosone pairs with an extra.

Edwards syndrome is very rare, only present in one every five-thousand births. the chances increase if the mother is above 30.