S T A N F O R D M E D I C I N E

Spring 2000

 

For Alumni
Stanford
MD

 

On the Cover

Bridging Disciplines to Squelch Cholera. 

Cover illustration by Calef Brown.

Stanford Medicine, published quarterly by Stanford University Medical Center, aims to keep readers informed about the education, research, clinical care and other goings on at the Medical Center.

 

The

Move

By Anne M. Rosenthal

 
WHEN STANFORD'S MEDICAL SCHOOL MOVED FROM SAN FRANCISCO TO NEW BUILDINGS AND LABORATORIES ON THE PALO ALTO CAMPUS 40 YEARS AGO, the changes were far more than physical in nature. The major role of Stanford's medical school during its first half century in San Francisco was to train physicians for medical practice. "The move" gave birth to a new kind of medical school. Envisioned by Stanford University's president Wallace Sterling and provost Frederick E. Terman, the reinvented medical school had a research emphasis encompassing both clinical medicine and the underlying basic sciences.

The establishment of a full-time clinical research faculty was one of the major changes brought about by the move. While heart surgeon Norman Shumway, MD, PhD; radiologist Henry S. Kaplan, MD; surgeon Roy Cohn, MD; and internist David Rytand, MD, joined the new campus, many others were unable to make the move. This made it possible to hire additional research-oriented clinicians, including surgeon Robert Chase, MD; urologist Thomas Stamey, MD; pediatrician Norman Kretchmer, MD, PhD; and psychiatrist David Hamburg, MD.

At the same time, funding became available to hire a world-class basic sciences faculty in biochemistry, as well as in genetics, an area relatively new to medical schools. Pioneering biochemist Arthur Kornberg, MD, arrived from Washington University, St. Louis, bringing his entire research group, which included Paul Berg, PhD, and many others. And legendary geneticist Joshua Lederberg, PhD, who was at the University of Wisconsin, accepted an offer to head Stanford's new Department of Genetics.

Untied from the ropes of tradition, the medical school, influenced by its influx of young energetic researchers, swung toward the union of basic research and medicine. Related departments on the Stanford campus, such as the departments of biological sciences and chemistry, were greatly strengthened, and the proximity of the medical school to the rest of the university furthered collaboration between medical and other faculty members.

The reinvigorated medical school included a radical new program for medical students. The idea was to attract students who wanted to conduct research -- and then give them every opportunity to do so, including an extra year's time. The five-year program encouraged students to find their own niches within the broader campus as well as the medical school, to work alongside researchers in their laboratories and to seek the best training available in their areas of interest.

The move's influence is still felt. "As we celebrate the 40th anniversary of the move, the integration of basic sciences and medicine remains at the core of Stanford's medical research and education," says the medical school's current dean, Eugene Bauer, MD. "The move, and the changes instituted along with it, set the stage for the dynamic research programs we have today," says Bauer.

Stanford Medicine invites its readers to see the move through the eyes of faculty and students who took part in the school's transformation.

 

Sidney Raffel

BROADENING HORIZONS:


MOVING TO THE


MAIN CAMPUS


Sidney Raffel, ScD, MD, first came to Stanford in 1935 on a one-year fellowship to study poliomyelitis, after completing a doctorate in immunology at Johns Hopkins University. He continued on as an assistant instructor at the Stanford medical school, with time out to complete his own medical degree at the San Francisco campus in 1942. Eventually he became head of Stanford's Department of Medical Microbiology and Immunology, serving in that role from 1953 until his retirement in 1976. Raffel's nearly four decades of teaching in the medical school's basic sciences program bracketed the move years.

Prior to the move, Stanford medical students spent their entire first year and a quarter on the Palo Alto campus taking anatomy, biochemistry, histology, medical microbiology and physiology. They continued with preclinical studies in San Francisco, attending classes in pathology, pharmacology and public health/preventive medicine. During their third year, students spent one month on each ward, followed by a fourth year of clinical rotations. The students roomed at boarding houses located in San Francisco at Fillmore and Sacramento streets.

Like most medical schools of the time, the clinical faculty taught on a part-time basis and had their own private practices at the school. Raffel recalls this faculty as being very devoted -- and against the move. Because their practices were rooted in San Francisco, the majority were unable to make the transition. As Raffel looks back, he remembers the days prior to the move as filled with good spirit. "The medical school classes were quite cohesive," he remembers, since everyone was taking essentially the same program. Yet despite missing some aspects of the "old times," Raffel strongly supported the move and enjoyed getting to know the new young investigators.

The post-move clinical faculty boasted many stars -- some from the San Francisco campus and many new recruits. Among those from San Francisco were Shumway, who pioneered numerous aspects of heart surgery, including the first adult heart transplant in the United States; surgeon Cohn, who performed many of the first kidney transplants on the West Coast; and Kaplan, head of radiology, who worked with physicists in Stanford's Microwave Laboratory to develop the first linear accelerator for cancer treatment. Faculty who joined later included many leading clinical researchers -- for example, Hamburg, whose norepinephrine studies in rhesus monkeys initiated a new emphasis on the role of neurotransmitters in mental health, was recruited from the National Institutes of Health to head psychiatry, and Kretchmer, an expert in intestinal enzymes of the developing child, was recruited from Cornell to head pediatrics.

While most of the pre-move students had geared their studies for medical practice, the post-move curriculum attracted students leaning toward careers in research. In addition to the focus on laboratory and clinical research, medical students could now choose from a wide spectrum of university resources. Some students forged the beginnings of unusual medical careers by combining fields like anthropology, sociology and primate behavior with their medical studies. For those who sought it, the post-move medical school experience had a much broader horizon.

Avram Goldstein

THE NEW CURRICULUM:


FROM CONCEPT TO LEGACY


Avram Goldstein, MD, who was recruited from Harvard in 1955 as the new head of pharmacology, played an important role in bringing distinguished basic science and clinical faculty to Stanford and in scripting the post-move curriculum. "Our first principle," he says, "was that Stanford was going to be a completely research-oriented medical school."

Recalls Goldstein, "The years immediately before the move were turbulent ... the essential birth pains of a new school." A new dean, Stanford's chief of pediatrics Robert Alway, MD, was chosen to lead the move. Alway, a supporter of the plan to create new departments in the basic sciences, worked closely with Goldstein and a small group of others to "bring the best people to Stanford and turn it into a distinguished institution," says Goldstein. "It was a great challenge -- and fun."

From today's standpoint, Goldstein was given remarkable latitude in his quest. For example, he recalls recruiting Kornberg from Washington University in St. Louis on behalf of the new medical school. Says Goldstein, "We felt that Stanford couldn't have a modern medical school without a top biochemistry department. We decided that Arthur Kornberg was the leading biochemist in the country and that we were going to bring him here. Kornberg said, 'Well we have a wonderful department here at Washington University,' so I said, 'Fine -- bring them all. We'll give you the space.' " With the successful recruitment of Kornberg, other nationally known faculty joined the basic science departments, quickly increasing Stanford's visibility.

Goldstein and others also redesigned the curriculum to support student involvement in investigative work. The aim of the new curriculum was to cover the required ground but to remain flexible enough to maximize opportunity for bright students to do whatever interested them the most. Therefore, students were allowed to take a large number of electives. And, contrary to the national pattern, which was to produce more doctors by reducing the time spent in medical school, Stanford extended the time from the standard four years to five.

"Two of the things we wanted to do were revolutionary at that time," notes Goldstein. "First, we wanted to give students a home where they could sit down, have a desk, and their lab courses could come to them -- a fully equipped lab, where they could do all their lab work except for gross anatomical dissections." The medical school had moved into the new buildings designed by famed architect Edward Durrell Stone. The second floor contained the Fleischmann laboratories, where each student in the first two years had an assigned place.

The other revolutionary idea, says Goldstein, was that these labs would offer a site for the informal exchange of scientific ideas between the faculty and their energetic inquiring students. In line with creating this atmosphere, the class size was 64, considerably smaller than the average medical school class, to give instructors more time with each student.

As the years passed however, students opted out of the lab classes, and the Fleischmann laboratories were converted to faculty space. Emphasis in the late 1960s and 1970s moved to arenas such as health policy and delivering medical care to minority and impoverished patients. Some of the faculty felt that these new areas were incompatible with a strictly research-oriented medical school.

The original concepts for the new curriculum "were grand notions," admits Goldstein. "Whether we ever fully achieved them, I would have to question -- but to some extent we certainly did."

Today's Stanford medical school students are an interesting mix, Goldstein says. While a number of students attend Stanford with the goal of entering medical practice, most -- about 90 percent -- spend at least six months involved in a research project. This emphasis on hands-on laboratory research is the legacy of the post-move curriculum.

 

Arthur Kornberg

RESEARCH: THE LIFELINE


OF MEDICINE


In 1959, when Kornberg came to Stanford to create its Department of Biochemistry, he was at the leading edge of a revolution -- a new emphasis on the integration of basic sciences into medical research and education.

As a member of the executive committee that advises the dean on policies and management, Kornberg helped to set a new standard for the function of a medical school. "The role would no longer be simply teaching, or the practice of what's known, but to acquire new knowledge -- and that would apply to clinical as well as pre-clinical departments."

Within a few weeks of Kornberg's move to Stanford from St. Louis, his group was continuing its experimental work. Since the cold rooms in the new laboratories were not yet working, the researchers stored their reagents temporarily in refrigerated trucks. It was a time of excitement, when science proceeded despite makeshift arrangements. "The essence of the biochemistry department is to do science, to do something creative," so they started right away, recalls Kornberg.

The department was unique in that funding and facilities were shared; there was a communal attitude that still flourishes today. The four-person faculty laboratories have always been occupied by researchers from different groups and, says Kornberg, "frequently projects grew out of this sharing of space and interaction."

In the first decades following the move, the biochemistry department -- small and close-knit -- focused almost completely on the duplication and recombination of nucleic acids. The group studied DNA, RNA and the proteins that bound them. The enzymes they discovered ignited the genetic revolution, notes Kornberg, who in 1959 shared the Nobel Prize in Medicine for his work in synthesizing DNA.

Biochemistry laboratory for medical and graduate students was taught in the Fleischmann laboratories. Students were given the same mandate as the faculty: Discover something new. Students spent five weeks isolating DNA and demonstrating that it was, in fact, DNA. Or they could isolate an enzyme of their choice and show the properties that qualified it as an enzyme.

"There was enough latitude there and enough excitement so that we were all in the laboratory -- the faculty, the students, the postdocs -- everyone was involved. The students would come back in the evenings, on the weekends ... ," Kornberg remembers.

But in the mid-60s, when a curriculum revision made biochemistry lab optional, only four students decided to take it. Kornberg is philosophical about this, noting that medical students are not necessarily pointed toward a research career. And yet, in his autobiography For the Love of Enzymes Kornberg concludes, "Experience has taught us that research is the lifeline of medicine. What a wonderful difference it would make if tens of thousands of physicians could report once in their lifetime how they had reshaped a fact of medical science!"

 

Halsted Holman

TOWN-GOWN RELATIONS:


FORGING A PARTNERSHIP


Immunologist Halsted Holman, MD, came from the Rockefeller Institute for Medical Research to head Stanford's Department of Medicine prior to the move. He recalls that, despite some initial worries on both sides, Stanford and Palo Alto physicians played complementary roles after the move, especially in internal medicine and pediatrics.

"The clinical side of the new research focus was specialty medicine. We developed specialty services, which by and large were not well represented in the community," says Holman.

The town of Palo Alto had a very good health care system overall, Holman says, "but most of the physicians were not specialists or, if they did specialty work, it was based purely on clinical, not biological, training." In the early days, there was essentially no primary care at Stanford; the Stanford emphasis on specialty medicine avoided an immediate competition with community physicians, Holman notes.

"The purpose of the move was to bring the Stanford medi cal school into what was perceived as the modern era," states Holman. "Post-move research was a recognition that biological processes that underlie human disease could be understood."

The move not only placed the medical school in proximity to other disciplines like biology, psychology and engineering, it gave the school updated facilities. An emerging source of support was the National Institutes of Health, which funded not only research but buildings and laboratories as well.

On the main campus, leasing of land to emerging technology companies -- the seeding of Silicon Valley -- generated funds and allowed the school to develop more fully in many ways. The intention of Sterling, Terman and others was to make Stanford into a complete university with strong graduate programs, and moving and strengthening the medical school was part of that picture, says Holman.

Initially, the new hospital was owned and managed jointly by Stanford and the city of Palo Alto. As a result of this arrangement, there was split leadership and even duplication of some departments. These problems were eventually resolved when Stanford took over ownership of the hospital in 1968, providing certain guarantees to the community physicians, including representation in hospital leadership bodies.

Following the move, there were some initial fears, expressed, for example, by Russell Lee, MD, founder of the town's Palo Alto Medical Clinic, that there might not be enough patients, says Holman. Some community physicians worried about being undercut by their Stanford counterparts. At the medical school, several faculty members were concerned that community physicians might not cooperate in teaching activities.

However, Holman feels that for the most part these fears were unfounded. From his point of view, the Department of Medicine worked to include community physicians, and as specialty services within the surrounding area developed, local physicians were incorporated to a greater degree into the teaching programs.

The fact that the principal leadership of the community physicians also believed in building a cooperative relationship played an important role in the success of Stanford's clinical enterprise in Palo Alto, Holman emphasizes.

"William Clark, one of the outstanding leaders in the community at the Palo Alto Clinic, and Charles Armstrong, who played a similar role at the Menlo Clinic, were very thoughtful people who strove to have good relations with the medical school faculty. They were deeply respected by those of us on the academic side," Holman states. With initiative from both the community physicians and Stanford medical faculty, town- gown relations -- a little shaky at first -- became a stable, positive aspect of medical care in the community.

 

Student Perspectives

THE EXTRA YEAR:


LEARNING TO THINK


Exams were few; laboratory and research reports, many. Learning to solve problems by interacting with faculty and other students was the emphasis of the five-year curriculum; the medical students had both the time and opportunity to discuss their work with some of the finest scientific minds in the world.

Reminiscing about what he learned in the biochemistry class, Irving Weissman, MD, class of 1965, says, "clarity of thought." His most important lesson was that scientific knowledge grows as a result of experimental questions asked to clarify central issues in the field, says Weissman, now on Stanford's medical faculty.

Says research pathologist Sharon Thomsen, MD, class of 1966: "The research-oriented school taught students not to be afraid of something they didn't understand but instead, to pursue the answer." Like many in the five-year medical school classes, she pursued a career in research and academia. Now at the University of Texas, Austin, she studies the effects of external non-ionizing radiation and its application in cancer treatment.

Thomsen's interest in her research field developed while working alongside mentor Raymond Saunders, PhD, in Stanford's Department of Pathology. "The research in his laboratory initiated my interest in the biochemistry, histochemistry and structure of connective tissues. I expanded this over my years in research into studies of wound healing, as well as my work on radiation's effects," explains Thomsen.

Students had plenty of time each day to pursue their own interests and, like Thomsen, many chose to work in research laboratories, where they had the opportunity to learn a variety of techniques. As medical students, many launched their own research projects, published and traveled abroad to work in their fields of interest with leading researchers.

Weissman, who had done biomedical research during high school, wanted to continue toward a research career in medical school. At Stanford, he worked with radiologist Kaplan, who gave Weissman space in his lab and even a part-time lab technician. Every week Weissman met with his mentor to discuss research papers Kaplan had written. "He was one of the few who translated scientific discoveries from the bench to patient care, and he provided a great background for me." Weissman also had time for an eight-month trip to Oxford to work in the laboratory of James Gowans. "Gowans had just demonstrated that lymphocytes -- the cells I wanted to study -- were the cells that had all the secrets of the immune response."

Another influence was geneticist Lederberg, who "had become entranced with immunology himself. He gathered around him some of the world's leading immunologists; we had weekly seminar sessions to read papers and discuss our work -- and, of course, being in this five-year school, we had time to do that."

Many students included non-medical topics in their studies. Robert Erickson, MD, class of 1965, for example, took seminars in the anthropology department.

Now a pediatrician on the faculty at the University of Arizona, Tucson, Erickson spent the summer after his first year of medical school studying how Mayan Indians' medical beliefs affected their acceptance of a Mexican national medical care program.

"My anthropology training influenced where I ended up practicing medicine," Erickson says. Erickson's current practice includes 10 Native American reservations where he sees pediatric genetic cases; his recent research includes the study of four rare Athabaskan genetic diseases present in the Navajo and Apache tribes.

 

AS WELL AS CULTURAL knowledge and sensitivity, Erickson's work required years of study in genetics and related areas. Erickson began this study at Stanford, where he joined the laboratory of Leonard Herzenberg, PhD, and received two years of training in immunogenetics. Recalls Erickson, "I received my grounding in scientific research -- Herzenberg taught critical thinking."

And like fellow alumni Thomsen and Weissman, Erickson appreciated the support Stanford offered for nascent physician-scientists. "In the 1960s, Stanford was one of the few medical schools with role models of physician-scientists in pediatrics," notes Erickson. "Over the years, I have come to appreciate their importance in my career choice. I always loved children and knew I wanted to be a pediatrician -- but I also wanted to be a physician-scientist." At Stanford, there was tremendous support for this dual role.

Erickson concludes, "A lot of us who were in the class of 1965 thought we were extremely lucky." SM