Hyperfunction


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Hyperfunction

 

the intensification of the activity (function) of a given organ, tissue, or system. In some cases hyperfunction may be an adaptive reaction to living conditions. (For example, in athletes there may be an increase in the size—hypertrophy—of the cardiac muscle and increase in the strength of its contractions.) In other cases it is a disorder leading to illness of the organism. (For example, hyperthyroidism results from hyperfunction of the thyroid gland—increased production of the hormone thyroxine.)

References in periodicals archive ?
Neck surface electromyography as a measure of vocal hyperfunction before and after injection laryngoplasty.
Both the activation as well as the hyperfunction of kappa opioid receptors result in a reduction in the release of dopamine, in both the limbic system and the prefrontal cortex, generating a state of hypodopaminergia and hyperglutamatergia which runs parallel to a negative emotional state during abstention from alcohol and contributes to a greater negative reinforcing effect of a new alcoholic drink.
Thus, these data strongly suggest that PEO has therapeutic effects on anxiety through antagonizing the hyperfunction of hypothalamic-pituitary-adrenal (HPA) axis and enhancing antioxidation mechanisms in brain tissue (Li et al.
24-26) However, because this approach is costly, others opt to screen only those patients with clinical signs and symptoms of adrenal hyperfunction.
There are numerous studies done in the past to suggest that there is an autonomic dysfunction in patients of migraine, sympathetic hyperfunction, sympathetic hypofunction and parasympathetic dysfunction have all been noticed.
The more frequent chronic renal lesion is characterised by the hyperfunction of nephrons remaining after the acute necrotising lesion, which leads to progressive scarring, and not by persistence or recurrence of the micro-angiopathic process.
Any kind of stressor stimulus (physical and/or psychological) can trigger psychophysiological reactions that eventually result in hyperfunction of the central nervous system and the endocrine system.
Autoantibodies that act like hormone agonists can produce states of hyperfunction or hypofunction when acting as receptor antagonists.
Thus, it is obvious that, the S/As report registered in patients with predominant anxiety differs from the one registered in healthy people because the hyperfunction of the stresogen system and of the hypofunction of the antistresogen system.
The hypo and hyperfunction of the thyroid gland influences carbohydrate metabolism at the level of the functional unit of the pancreas: the islet cell, and GLUT governed glucose metabolizing biological cellular targets, posing important therapeutic and diagnostic intricacies.
Hyperfunction of the remaining nephrons, systemic hypertension, the progression of immune dam- age, proteinuria, and protein and fat dietary loading.