Adaptational physiology

HEART METABOLISM EXAMPLE OF AN ADAPTABLE PHYSIOLOGICAL CHARACTER... 

Why Finding Alleles for Adaptive Physiological Characters Is So Difficult... 

Adaptation (Physiology) 2. Physiology, Comparative. 3. Molecular evolution. I. Somero, George N. II. Title. 

As far as laboratory findings are concerned, the adaptation of metabolically active cell organelles or microsomal enzyme systems is generally reflected by an increase in y-GT activity following a certain period of alcohol intake. In this context, an increase in y-GT alone is an adaptive, physiological phenomenon as well as a sign that y-GT has been released from its membrane binding, (s. pp 55, 97)... 

With these biological models in mind, let s begin to look at specific anxiety disorders, many of which represent some type of malfunction in this otherwise-adaptive physiological system. 

Tandeau de Marsac, N., Houmard, J (1988). Complementary chromatic adaptation physiological conditions and action spectra. Methods Enzymol. 167, 318-328. 

Tolerance (Oehlmann and Markert 1997) is the desired resistance of an organism or community to unfavorable abiotic factors (climate, radiation, pollutants) or biotic factors (parasites, pathogens), where adaptive physiological changes (e.g., enzyme induction, immune response) can be observed. 

It is apparent from the foregoing discussion that the NO-NOS system represents a complex bioregulatory entity involved in many organ systems. It triggers constitutive as well as adaptive physiological responses. While the ultimate effect of NO may be determined by its interaction with different target systems, the synthesis of NO itself appears to be a crucial step in this pathway. We conclude from our studies and those of others that NO radical is probably one of the normal by-products of the oxygen metabolism. This is based on the facts that (1) the synthesis of NO is oxidative in nature,... 

Acute pain is an adaptive physiological response that follows traumatic injuries and surgery. It has two primary components. (1) The sensory discriminative component describes the location and quality of the stimulus. It is characterized by rapid response, short latency to peak response, and short duration of action. Noxious information is conveyed by rapidly conducting A-delta fibers, and monosynaptic transmission to the sensory cortex [10,12]. This component rapidly identifies the site of injury or potential injury, and initiates reflexive/cognitive withdrawal responses. (2) The affective-motivational component underlies suffering and the emotional components of pain and is responsible for learned avoidance and other adaptative and non-adaptative behavioral responses. 

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