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Host Modulation in Periodontology
A long time, periodontitis was believed to be an inevitable consequence of aging and uniformly distributed in population. This age old belief was again supported by another belief that disease severity was directly proportional to plaque levels. But in the mid 1990’s early insight about complex diseases like periodontitis, led to new conceptual models of pathogenesis. In recent years, the role of microorganisms as the principle etiologic factor in periodontal diseases has gained new perspectives. Periodontal disease is a multifactorial and complex disease which is characterized by an upregulated or maladapted immune inflammatory response to bacterial plaque which predisposes to periodontal...
Tetracyclines in Biology, Chemistry and Medicine
The tetracyclines have an illustrious history as therapeutic agents which dates back over half a century. Initially discovered as an antibiotic in 1947, the four ringed molecule has captured the fancy of chemists and biologists over the ensuing decades. Of further interest, as described in the chapter by George Armelagos, tetracyclines were already part of earlier cultures, 1500-1700 years ago, as revealed in traces of drug found in Sudanese Nubian mummies. The diversity of chapters which this book presents to the reader should illus trate the many disciplines which have examined and seen benefits from these fascinating natural molecules. From antibacterial to anti-inflammatory to anti autoimmunity to gene regulation, tetracyclines have been modified and redesigned for various novel properties. Some have called this molecule a biol ogist's dream because of its versatility, but others have seen it as a chemist's nightmare because of the synthetic chemistry challenges and "chameleon-like" properties (see the chapter by S. Schneider).
National Institute of Dental Research Indexes
Listings of extramural and intramural projects. Information provided is project number, subject, investigator, and laboratory/branch.
