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NATIONAL INSTITUTE ON ARTHRITIS AND MUSCULOSKELETAL, AND
STATEMENT OF DR. LAWRENCE D. SHULMAN, DIRECTOR
Dr. Shulman, welcome back. It is always a pleasure to see you and have an opportunity to learn more about the Institute and its research programs. I understand that April 16 is the fifth anniversary of the founding of the National Institute on Arthritis, Musculoskeletal, and Skin Diseases. I must congratulate you on the tremendous contribution the Institute has made these past 5 years,
5 both to the scientific research community and to those who suffer from these chronic diseases. Although much has been accomplished during this time, I know that you feel there is still much to be done.
I see that the Institute's 1992 budget request is $204.8 million, an increase of 6 percent over last year's appropriation.
Could you please briefly summarize the Institute's five science programs and highlight your plans for fiscal year 1992 in these areas, Dr. Shulman?
Dr. SHULMAN. Thank you so much, Mr. Chairman.
Mr. Chairman, our Institute is having a very good year this year. We are supporting some exceptional research with some key discoveries. We have had excellent workshops, new developments in our intramural program, and we are developing new initiatives, as you and we have identified them this past year.
Prevention is the key. We agree with you on that point.
We work on diseases that concern women's health, minorities, and rare diseases as well. We have many of the diseases in that rare disease category that we are interested in.
OSTEOPOROSIS However, let's start off with osteoporosis, for which, as you know, we are the lead Institute. We have had much progress this year in osteoporosis, but we have a great deal more to do. We prepared a major report for the Department to submit to you on osteoporosis. I demonstrate it here. It is a very fine report, and we are pleased to have had the privilege of doing it. Many suggestions for the future research are in that report.
In response to your request for special emphasis in this area in the amount of $6 million during the current year, we have issued two requests for applications, one for basic research on causal mechanisms on osteoporosis, and the second on clinical and epidemiological research. We have also joined with the Aging Institute in another request for applications in interventions in the elderly who have osteoporosis.
In the meantime, we have had some research advances in osteoporosis. A key one, as you know, are the bisphosphonates which are used to retard bone loss in post-menopausal women. It provides an alternative to estrogen replacement therapy, which has been confirmed once again as being valuable. We need to find the best type of hormone combinations for that effort.
Calcium is important at all ages. Let me indicate that we have had a very interesting study this year in young twins, children. Some twins have been taking the ordinary amount of calcium that children are supposed to take; their twin pairs have taken a supplement of twice that much. Those who have taken the supplement have built up more dense bones than the others who have taken the ordinary amount.
We have had a study report in the New England Journal of Medicine of women who are not producing the normal amount of hormones during their twenties, thirties, and forties; they have lower bone mass than other women who menstruate normally.
We have also had studies showing that running in the elderly may actually be helpful.
The right amount of exercise is a problem not only for all of us, but especially for our astronauts. Senator HARKIN. Excuse me. Did you say running?
Dr. SHULMAN. Older people running. It is good for them, good for their bones.
Senator HARKIN. Thank you. Now, I have it clear in my head. It is good for older people to run. All right. (Laughter.]
Ďr. SHULMAN. It's good for their bones. This is a problem for our astronauts. If we are going to go to Mars, either with or without the Soviets, we have to be sure that the astronauts don't lose much of their bone mass. So, we are working with NASA on this.
LYME DISEASE Another area of importance that has interested both you and us is Lyme disease. We appreciate that this disease is still spreading. Last year, as you know, we issued a request for applications on causal mechanisms. With your special emphasis this year, we have responded with another request for applications, this time for research on the diagnosis and treatment of Lyme disease, both of which are still problems. We have keen problems in the diagnosis of Lyme disease. There is difficulty in defining it with great accuracy, and we do not have fully reliable laboratory tests. Various tests do not agree with one another, according to a study done by the CDC and as reported at a conference last fall.
There seems to be both underdiagnosis and overdiagnosis in endemic areas. So, this is another type of problem. And certain outdoor workers, such as forestry workers, are actually at special risk, and we need to have preventive modes for them.
OSTEOARTHRITIS We have had exceptional discoveries in two areas. The first is osteoarthritis, the most common form of arthritis usually occurring in
the elderly. As you know, our investigators discovered a faulty gene in a particular familial form of osteoarthritis. This arthritis occurred in youngsters. The scientists were able to identify, in a family of three generations in which nine of the members developed severe osteoarthritis in their twenties, this specific fault in the gene for collagen II. Collagen II is a molecule of 1,000 amino acids. They found the fault in a substitution of only one of these amino acids for another. This provides a new direction for research on osteoarthritis generally, and this work is now beginning.
The second spectacular discovery is that of research in using transgenic animals to study the spondyloarthropathies. This is a group of diseases associated with arthritis of the spine and other joints and other manifestations. This is a common disease of young men, perhaps the most common form of arthritis in young men. It had been found that there is a tissue type, HLA-B-27, that was associated with these diseases. It had been suspected that certain infections actually initiate these diseases. There had been some question about the importance of genetics. With this transgenic mechanism, they have been able to take the human B-27 gene, inject it into the fertilized egg of in-bred rats, and then reproduce the whole human disease. This establishes a clear role for genetics in these forms of arthritis. Spectacular.
We also have interesting work going on in lupus. Lupus, as you know, is nine times more common in women, three times more common in black women than white women. We have a whole task force to look into why this is so and what we could do in educating those at special risk.
Finally, we have made giant steps in developing our national research plan. I believe we advised you last year that it was going to take us about 2 years to develop that plan. We are clearly ahead of that schedule. We had a national task force meet in February, north of Baltimore, with 140 of the leading scientists in the Nation, in five different disease areas, Senator Harkin. We had five science panels with anywhere between 22 and 35 leaders each in arthritis, muscle biology, bone biology and bone diseases, musculoskeletal, orthopedic disease, and dermatology; and nine crosscutting issues panels. They have come up with a research plan in draft of about 1,000 pages, with very exciting recommendations for the future. It will take us a few months to complete the final report of the national plan, and we will be glad to submit it to you then.
That is our report, sir.
STATEMENT OF DR. LAWRENCE D. SHULMAN
The National Institute of Arthritis and Musculoskeletal and Skin Diseases
(NIAMS) supports a broad range of basic and clinical research on many of the
most debilitating diseases affecting the health of the Nation.
I am privileged
to discuss with you some of the scientific advances that have been made this
past year in the disease areas under the mandate of the Institute, and to share
with you some of our future plans.
Osteoporosis, the leading cause of bone fractures both in postnenopausal
women and in the elderly, affects approximately twenty-four million Americans.
The NIAMS leads the federal research effort to conduct and support basic,
clinical, and epidemiologic investigations on osteoporosis through individual
research grants and specialized research centers.
In February 1990, the
Institute cosponsored a highly successful international conference entitled
"Research Advances in Osteoporosis." The latest findings were presented, and
recommendations for future research were developed.
A new treatment..
bisphosphonates--was shown to be very effective in combatting the bone loss of
The Institute continues to expand its research efforts in osteoporosis.
Two requests for applications (RFAs) for research on osteoporosis are being
One invites additional basic research on fundamental causes.
second invites more grant applications on clinical and epidemiological research
The Institute is also stepping up its disease prevention and
health promotion efforts with regard to osteoporosis.
The NIAMS Information
Clearinghouse will expand its educational activities both for the public and
for health professionals.
Projects to inform consumers about risk factors,
preventive measures, and research results are being planned.
There are more than 100 kinds of arthritis, affecting not only the joints but other connective tissues of the body including important supporting
structures such as muscles, tendons, and ligaments. One of the most common is
rheumatoid arthritis, a chronic inflammatory disease afflicting more than 2
million adults in the United States.
In recent experiments with rats,
scientists have developed a T-cell vaccine that could ultimately lead to T-cell
therapy and vaccination in humans.
The Institute has also begun a clinical
trial in which an antibiotic is being tested as a treatment for rheumatoid
In other recent research, a dissimilarity in tissue type between
mother and fetus has been found in many women with rheumatoid arthritis who
improve during pregnancy.
This finding suggests that the mismatch induces an
immunologic reaction that suppresses the arthritis.
Lyme disease, which has both arthritis and skin disease among its major
manifestations, has become a national problem.
It is now the most common
insect-borne disease in the Nation, and its distribution is worldwide.
is giving high priority to both research and outreach programs for Lyme
The Institute has recently funded several new basic research grants
to increase understanding of how the infectious agent causes the disease, with
the hopes of improving diagnosis and treatment, and providing the foundation
for development of an effective vaccine.
NIAMS is also supporting a clinical
trial to determine if antibiotics can prevent Lyme disease from emerging in
people who have been bitten by the deer tick.
Programs to better inform both
the public and health professionals about the dangers and prevention of Lyme
disease are under way.
A data base on educational materials was recently
completed; and in early March 1991, a workshop on Lyme disease will be held
with panels of experts to develop up-to-date vital information for physicians
on both the diagnosis and treatment of Lyme disease.
One of the most exciting breakthroughs this year was the identification of
a gene that causes a form of osteoarthritis, the most common form of arthritis,
a disease in which the cartilage that covers and cushions the joints breaks
NIAMS - supported investigators at two different grantee institutions,
working together, isolated and characterized a faulty gene for collagen II, the
main structural protein that strengthens cartilage.
Another exciting breakthrough in arthritis this year was the successful
Induction, by transgenic transfer, into inbred rats of both the human gene
(HLA-B27) for spinal arthritis and the entire clinical spectrum of the group of
diseases (spondyloarthropathies) associated with spinal arthritis.
found in over 90 percent of patients with spinal arthritis, and in only 8
percent of the general population.
These diseases associated with spinal
arthritis comprise the most common forms of arthritis in young men.
striking mimicry between the disease manifestations found in this animal model
and those found in humans opens avenues for research, including the testing of