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Full-Text Articles in Medicine and Health Sciences

On The Evolution Of Depression, Mike W. Martin Jan 2002

On The Evolution Of Depression, Mike W. Martin

Philosophy Faculty Articles and Research

In "Depression as a Mind-Body Problem," Walter Glannon outlines a psychosocial-physiological explanation of depression as a psychological response to chronic stress—today, especially social stress—in which cortisol imbalances disrupt neurotransmitters. Accordingly, treatment for depression should combine psychopharmacology and psychotherapy—a valuable reminder in light of the current restrictions on funding for health care (Hobson and Leonard 2001). My comments focus, however, on Glannon's objections to evolutionary theorists who explain our capacity for depression as adaptive to the natural and social environment. His objections are implausible because he fails to distinguish depression as a mood and a disorder.


Polymerase Chain Reaction: An Emerging Tool For Research In Pharmacology, Rishi Sharma, Manjeet Singh, Ajay Sharma Jan 2002

Polymerase Chain Reaction: An Emerging Tool For Research In Pharmacology, Rishi Sharma, Manjeet Singh, Ajay Sharma

Pharmacy Faculty Articles and Research

Polymerase chain reaction (PCR) is a technique that can amplify a specific DNA segment in vitro using two site specific primers that hybridise to opposite DNA strands. The method produces large amounts of specific DNA from a complex DNA template in a single enzymatic reaction within a matter of hours. Reaction mixture contains a double helix DNA, two target specific primers, dNTPs, a DNA polymerase and a Mg2+ containing buffer. PCR is carried out in three distinct steps i.e. denaturation step, annealing step and extension step, which are repeated many times. The efficiency of PCR is measured in terms of …