(v. t.) To act in opposition to; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.
Example Sentences:
(1) The origins of aging of higher forms of life, particularly humans, is presented as the consequence of an evolved balance between 4 specific kinds of dysfunction-producing events and 4 kinds of evolved counteracting effects in long-lived forms.
(2) Conversely, rat galanin increased unstimulated glucagon output (approximately 20%, P less than 0.05), potentiated the glucagon response to arginine (approximately 50%, P less than 0.05) and VIP (approximately 90%, P less than 0.05), and counteracted the suppressor effect of glucose on alpha-cell secretion.
(3) This inhibition is counteracted by the somewhat slower increase of NE turnover resulting in normalization of LH levels.
(4) These results suggest that CPZ interacts with smg p21B, smg GDS, or both, and thereby inhibits the smg GDS action, and that CPZ also interacts with the acidic phospholipids and thereby counteracts their inhibitory effect on the smg GDS action.
(5) Extracts from arrested cells counteracted the stimulating effects of extracts from proliferating cells with kinetics suggesting competitive interaction between stimulating and inhibitory factors.
(6) Acetylcholine increases their turnover, Atropine reduces it, and the addition of atropine counteracts the effect of acetylcholine in all these phospholipids.
(7) Whether they affect ureteral motility in vivo or whether they can counteract ureteral spasm associated with ureteral stones have not been established.
(8) Metoclopramide did not counteract the apomorphine effect and, in higher doses, water intake was even further reduced.
(9) This effect increases with the estrogen dose and is counteracted more effectively by androgenic progestogens such as levonorgestrel than by nonandrogenic progestogens such as desogestrel.
(10) PGE2 counteracted the NA-effect in the former group of patients but did not affect the influence of NA at term.
(11) Addition of heme in vitro (10(-6)M) to the latter nuclei results in a significant counteraction of the decreased cytochrome P-450 (c + d) mRNA transcription.
(12) Two functions of these have been proposed: 1) that they are compatible osmolytes which regulate cell volume (against high external NaCl) without inhibiting proteins and 2) that methylamines (GPC and betaine) are counteracting osmolytes which stabilize proteins against perturbation from high renal urea.
(13) For this rather large pressures (about 700 hPa) are required to overcome the surface forces counteracting droplet formation.
(14) The drop in the blood-sugar levels was counteracted by corresponding infusions of glucose by the BIOSTATOR via a special clamp technique.
(15) In the wild strain (Em 5297a) thiourea is tenfold more toxic on an allantoin medium than on an inorganic nitrogen medium; allantoin as well as urea counteract thiourea toxicity in the allantoin nitrogen medium.
(16) Retinal traction can be counteracted by the oil up to a calculated threshold value, depending on the size and shape of the tear, the strength of the surface tension and, most importantly, the distance between the retina and choroid.
(17) Some of the changes found may be a result of adaptive mechanisms occurring in order to counteract the different biophysical effects of ethanol.
(18) This study evaluates whether suturing of replaced flaps with crown-attached sutures, following reconstructive surgery, counteracts postoperative recession of the gingival margins and facilitates new attachment.
(19) In the present article is shown that the histamine releasing effect is counteracted by the addition of histamine to the superfusion fluid.
(20) This barrier effect was partially counteracted by monensin or carbonyl cyanide m-chlorophenylhydrazone.
Counterbalance
Definition:
(v. t.) To oppose with an equal weight or power; to counteract the power or effect of; to countervail; to equiponderate; to balance.
(n.) A weight, power, or agency, acting against or balancing another
(n.) A mass of metal in one side of a driving wheel or fly wheel, to balance the weight of a crank pin, etc., on the opposite side of the wheel
(n.) A counterpoise to balance the weight of anything, as of a drawbridge or a scale beam.
Example Sentences:
(1) Stations such as al-Jazeera English have been welcomed as a counterbalance to Western media parochialism.
(2) To counterbalance integration against the threat of riots is basically the Tebbit test without the sport.
(3) Dose dependency of disposition and absorption counterbalance each other in the usual dose range.
(4) This study suggests that the changes in cholesterol metabolism after jejunoileostomy are dependent on the length of functioning jejunum and ileum in such a way that the effects of the two segments counterbalance each other.
(5) A large turn-out of Democratic supporters is needed in working-class cities in the north of Ohio to counterbalance Republican support in the largely rural areas to the south.
(6) In contrast, AVP sensitizes the sympathetic control of the mesenteric vascular bed to counterbalance its potent local vasoconstrictor effects.
(7) The results show that the ability to support survival of primary cultured hepatocytes is not a common property of liver-tumor-promoter barbiturates but is a common property of some barbiturates with high lipophilicity, and that the maintenance of hepatocytes by phenobarbital or amobarbital is not due to a counterbalance of stimulated proliferation and death of the cells.
(8) It is also, still, an important counterbalance to the power of BBC television, above all BBC1.
(9) Ahmadinejad's address to heads of state at the summit of the Shanghai Cooperation Organisation (SCO), in Kazakhstan could deepen suspicions that the bloc is intended as a counterbalance to US influence across the region.
(10) Inhibition of VPA beta-oxidation by salicylate was sufficient to counterbalance the increased elimination of VPA as its conjugates and explains why total clearance of VPA after salicylate remains unchanged even though the free fraction of VPA is increased.
(11) The major effects of ADH on urinary acidification serve at least to counterbalance disturbing consequences on urinary ammonia excretion of physiological variations in the urinary flow rate.
(12) Quantitation of the contribution of each kidney, by means of a 99mTc-DTPA scan, showed that the glomerular filtration rate of the native kidneys had decreased to counterbalance the added function.
(13) It is known that the halophilic green alga Dunaliella tertiolecta grows under hypertonic conditions (with NaCl), which induce the intracellular accumulation of high concentrations of glycerol in order to counterbalance the osmotic change.
(14) Those behind the deal said they hoped to use the SCMP to paint a more positive picture of China and provide a counterbalance to the western media’s “too ideological and biased” coverage.
(15) The importance of the Bainbridge reflex as a counterbalance to the baroreceptor reflex is discussed.
(16) For both reactions the activation enthalpies and entropies change markedly with menaquinone chain length but counterbalance each other, resulting in activation free energies at ambient temperature independent of the menaquinone tail.
(17) It is suggested that K+ elevation counterbalance both PRA decrease and ANF increase to be responsible for the absence of change in plasma ALD during beta-blockade.
(18) Turn Britain's regions into subsidiaries of London, raze its business and political elites, and you have hardly any counterbalance to the might of the City.
(19) Simultaneous hemodilution with hydroxyethyl starch can counterbalance the already existing changes.
(20) However, the animals consistently retained sodium, and the high plasma levels of ANF were unable to counterbalance the sodium-retaining actions of DOCA.