Parallel lines do not converge

Article Abstract:

Evolution of viruses cannot be predicted, according to research carried out by University of Idaho's Holly Wichman. She has studied two sets of viruses of the same kind subject to the same changes in the environment, in different locations. The types of adaptations seen in the viruses were different in some ways, and the order in which the changes occurred also varied. Beneficial changes occurring early on appeared to have the greatest impact.

Viruses, Evolution (Biology)

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A sprinkling of herbs

Article Abstract:

Medical and pharmacological researchers are turning in increasing numbers to potential botanical sources of therapeutics, although much commercial research remains devoted to patentable synthetics. Medicinal plants and the drugs derived from them tend to have fewer adverse effects than synthetics.

Complications and side effects, Medicinal plants, Materia medica, Vegetable, Plant extracts

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By numbers: drug discovery

Article Abstract:

Richard Houghten uses a trial and error method to discover which of all possible amino acid hexamers produce a desired effect on human receptor proteins. Houghten's method has already identified three potentially useful hexapeptides.

Therapeutics, Amino acids, Amino acid synthesis

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