The Autoimmune Epidemic: Bodies Gone Haywire in a World Out of Balance
vrijdag, 15 januari 2016 - Categorie: Artikelen
18 maart 2008
Oud maar nog steeds relevant.
Scientists worldwide puzzle over an alarming and unexplained rise in the rates of autoimmune disease. Yet the media remain mute on this crisis.
Excerpted from The Autoimmune Epidemic: Bodies Gone Haywire in a World Out of Balance--and the Cutting-Edge Science that Promises Hope
Most of us, at some juncture in our lives, have played out in our minds how devastating it would be to have our doctor hand down a cancer diagnosis or to warn us that we are at risk for a heart attack or stroke. Magazine articles, television dramas, and news headlines all bring such images home.
But consider an equally devastating health crisis scenario, one that you rarely hear spoken about openly, one that receives almost no media attention.
Imagine the slow, creeping escalation of seemingly amorphous symptoms: a tingling in the arms and fingers, the sudden appearance of a speckled rash across the face, the strange muscle weakness in the legs when climbing stairs, the fiery joints that emerge out of nowhere -- any and all of which can signal the onset of a wide range of life-altering and often debilitating autoimmune diseases.
Imagine, if you can: the tingling foot and ankle that turns out to be the beginning of the slow paralysis of multiple sclerosis. Four hundred thousand patients. Excruciating joint pain and inflammation, skin rashes, and never-ending flu-like symptoms that lead to the diagnosis of lupus. One and a half million more. Relentless bouts of vertigo -- the hallmark of MÃ©niÃ¨re's. Seven out of every one thousand Americans. Severe abdominal pain, bleeding rectal fissures, uncontrollable diarrhea, and chronic intestinal inflammation that define Crohn's disease and inflammatory bowel disease. More than 1 million Americans.The incapacitating weakness and burning pain that accompany the inflammation of the joints and other organs and lead to the crippling effects of rheumatoid arthritis. More than 2 million patients. Dry mouth so persistent eight glasses of water a day won't soothe the parched throat and tongue and the mysterious swallowing difficulties that are the first signs of SjÃ¶gren's. Four million Americans. And, with almost every autoimmune disease, intolerable, life-altering bouts of exhaustion. If fatigue were a sound made manifest by the 23.5 million people with autoimmune disease in America, the roar across this country would be more deafening than that of the return of the seventeen-year locusts.
And yet, despite the prevalence of autoimmune disease, surveys show that more than 90 percent of people cannot summon the name of a single autoimmune disease when asked to name one specifically.
Think of it -- other than walkathons for multiple sclerosis, how many fundraising walks or lapel ribbons have you seen for autoimmune disease in general? Nearly 24 million Americans are suffering from an autoimmune illness, yet nine out of ten Americans cannot name a single one of these diseases. It boggles the mind.
Each of these nearly 100 autoimmune diseases derails lives. Taken collectively, these diseases, which also include type 1 diabetes, Graves' disease, vasculitis, myasthenia gravis, connective tissue diseases, autoimmune Addison's disease, vitiligo, rheumatoid arthritis, hemolytic anemia, celiac disease, and scleroderma are now the Number Two cause of chronic illness in America and the third leading cause of Social Security disability behind heart disease and cancer. (Acquired immune deficiency syndrome, or AIDS, by contrast, is not an autoimmune disease; in fact, it is entirely different. In AIDS a virus attacks the immune system and destroys it, whereas in autoimmune disease, the immune system leads the attack, mistaking the body's tissue for an invader and turning on the body itself.)
Autoimmune diseases are the eighth leading cause of death among women, shortening the average patient's lifespan by fifteen years. Not surprisingly, the economic burden is staggering: autoimmune diseases represent a yearly health-care burden of more than $120 billion, compared to the yearly health-care burden of $70 billion for direct medical costs for cancer.
To underscore these numbers, consider: while 2.2 million women are living with breast cancer and 7.2 million women have coronary disease, an estimated 9.8 million women are afflicted with one of the seven more common autoimmune diseases: lupus, scleroderma, rheumatoid arthritis, multiple sclerosis, inflammatory bowel disease, SjÃ¶gren's, and type 1 diabetes. All of these can lead to potentially fatal complications.
Or slice these statistics another way: while one in 69 women below the age of fifty will be diagnosed with breast cancer, according to estimates, as many as one in nine women of childbearing years will be diagnosed with an autoimmune illness, which strike three times as many women as men -- and most often strike patients in their prime. According to the National Institutes of Health, autoimmune disease affects far more patients than the 9 million Americans who have cancer and the 16 million with coronary disease.
''The Western Disease'': A Rising Epidemic Underrecognized and Underaddressed
Even as autoimmune diseases remain underrecognized and underaddressed, the number of patients afflicted with these illnesses has been steadily growing. Yet few of today's practicing physicians are aware of the escalating tsunami of epidemiological evidence that now concerns top scientists at every major research institute around the world: evidence that autoimmune diseases such as lupus, MS, scleroderma, and many others are on the rise and have been for the past four decades in industrialized countries around the world.
Mayo Clinic researchers report that the incidence of lupus has nearly tripled in the United States over the past four decades. Their findings are all the more alarming when you consider that their research has been conducted among a primarily white population at a time when many researchers believe lupus rates are rising most significantly among African Americans.
Over the past fifty years multiple sclerosis rates have tripled in Finland. Rates have likewise been rising in Scotland, England, the Netherlands, Denmark, and Sweden, where the number of people with MS has been rising at nearly 3 percent a year. Multiple sclerosis rates in Norway have risen 30 percent since 1963, echoing trends in Germany, Italy, and Greece, where MS rates have doubled over the past thirty to forty years.
Rates of type 1 diabetes are perhaps the most telling. Data over the past forty years show that type 1 diabetes, a disease in which immune cells attack the insulin-producing beta cells in the pancreas, has increased fivefold. The story regarding childhood-onset type 1 diabetes is more disturbing. Studies show that the number of children with type 1 diabetes is skyrocketing, with rates increasing 6 percent a year in children four and under and 4 percent in children aged 10 to 14.
Rates of numerous other autoimmune diseases -- scleroderma, Crohn's disease, autoimmune Addison's disease, and polymyositis -- show the same alarming pattern.
As with all epidemiological research, it can be more art than science to tease out what percentage of these rising rates is the result of more people being diagnosed with a disease because physicians are more aware of it, versus the increase from a genuine rise in the number of people falling ill. Yet the researchers behind these epidemiological studies hold that something more than an improved ability among doctors to diagnose autoimmune diseases is driving these numbers upward.
Norwegian epidemiologists, for instance, argue that rising rates are ''due to a real biological change of the disease'' rather than being caused solely by better diagnostics and are concerned by the higher occurrence of autoimmunity in urban than in rural areas. Swedish and German researchers concur that enhanced diagnostics alone cannot explain today's significant increases in MS.
Type 1 diabetes researchers insist that today's rapid rise in this disease cannot be explained by either better diagnostics or by more people suddenly becoming genetically susceptible to type 1 diabetes; rather, a change in environmental factors is the ''more plausible explanation.'' At the Mayo Clinic researchers are beginning to ask if rising rates of lupus are the result of an increased exposure to environmental triggers of some unknown origin. Because autoimmune disease is spreading in almost every industrialized nation, scientists the world over have dubbed it ''the Western disease.''
A Growing Autoimmune Patient Load, An Autoimmune-Disease Crisis in the Making
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