In 1948, prior to any announcements about the sickle cell anemia studies, Pauling
began associating structural chemistry and medical problems in his speeches and publications.
Thus, Pauling anticipated the impact of his upcoming publication with Itano, Singer,
and Wells. Typically, he stressed the importance of studying the structure of organic
molecules and used hemoglobin as an example, by focusing on his own research. He discussed
the structure of the hemes and magnetic properties of hemoglobin and also noted what
was unknown by stating that although scientists were trying to ascertain the structure
of proteins, they had not been successful yet. Then, he concluded by foreshadowing
the potentialities of chemistry for medicine: "We may hope that in the course of time
a more thorough understanding of the detailed molecular structure of hemoglobin and
other complex substances will be obtained, which will be of aid in the further progress
of medicine."
Pauling wasted no time circulating the sickle cell anemia information that he and
his co-workers found. And in the years following the publication of their paper, Pauling
continually connected studies on chemical structure to medicine and specifically discussed
sickle cell anemia. In September 1949, Pauling optimistically stated that knowledge
about molecular diseases might aid cancer research, especially leukemia (a cancer
of the blood). Pauling summarized what was known and unknown, and how more information
on the structural chemistry of diseases might revolutionize medicine. "We know the
abnormal hemoglobin molecule has a positive charge three units greater than in the
normal hemoglobin molecule. We still don't know if this means three negative groups
are missing, or that there are three extra positive groups. This development, if carried
to its logical conclusion, means our structural chemistry and understanding of molecules
is getting to the point where it should be of assistance in converting medicine into
a real science."
In commenting upon the history of therapeutics, Pauling stated that most antibiotics
(like penicillin and streptomycin) were discovered "accidentally," and that researchers
did not understand how certain substances fought illnesses. According to Pauling,
medical practice had been haphazard in promoting the potential benefits of physical
and structural chemistry to medicine. However, he not only hoped that the future would
be different, but also tried to do something about it.
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