History
In 1934, Karl Meyer and John Palmer described a new
polysaccharide isolated from bovine vitreous humor.
They found that the substance contained an uronic acid
and an aminosugar, and named the polysaccharide “hyaluronic
acid” from hyaloid (vitreous) + uronic acid [9].
The term “hyaluronan” was introduced in 1986 to conform
to polysaccharide nomenclature. During the 1930s
and 1940s, HA was isolated from many sources such as
the vitreous body, umbilical cord, rooster comb, and
streptococci [10]. The chemical structure of HA was