What's the difference between irritate and stimulate?

Irritate


Definition:

  • (v. t.) To render null and void.
  • (v. t.) To increase the action or violence of; to heighten excitement in; to intensify; to stimulate.
  • (v. t.) To excite anger or displeasure in; to provoke; to tease; to exasperate; to annoy; to vex; as, the insolence of a tyrant irritates his subjects.
  • (v. t.) To produce irritation in; to stimulate; to cause to contract. See Irritation, n., 2.
  • (n.) To make morbidly excitable, or oversensitive; to fret; as, the skin is irritated by friction; to irritate a wound by a coarse bandage.
  • (a.) Excited; heightened.

Example Sentences:

  • (1) Postpartum management is directed toward decreasing vasospasm and central nervous system irritability and maintaining fluid and electrolyte balance.
  • (2) testosterone, fentanyl, nicotine) may ultimately be administered in this way, important questions pertaining to pharmacology (tolerance), toxicity (irritation, sensitisation) and dose sufficiency (penetration enhancement) remain.
  • (3) It was shown that the antibiotic had low acute toxicity, did not cumulate and had no skin-irritating effect.
  • (4) Inhibition of binding of [3H]TPA to the receptor preparation by tigliane and ingenane DTE correlates with irritant activity in vivo, while some daphnane and 1 alpha-alkyldaphnane DTE inhibit binding of [3H]TPA in a less pronounced manner but still are very irritant.
  • (5) Exposure to irritants was also more common among the asthmatics than the nonasthmatics with similar exposure to organic allergens (P = 0.004).
  • (6) The purpose of this study was to develop a new model for the induction of chronic irritant contact dermatitis, which would reflect well the conditions of daily practice.
  • (7) The drug I started taking caused an irritating, chronic cough, which disappeared when I switched to an inexpensive diuretic.
  • (8) These injections led to epidermal hyperplasia in areas overlying the irritant and the effect was most significant when the irritant was placed in the upper dermis.
  • (9) Two children required lidocaine therapy for cardiac irritability manifesting as multifocal PVCs and ventricular tachycardia.
  • (10) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (11) The dietary fibre intake of 25 patients with the irritable bowel syndrome was assessed by dietary recall over one week for the period before onset of symptoms, at diagnosis and after six months treatment with bran and a fibre-rich diet, and compared with controls matched for age and sex.
  • (12) A case of epidermoid tumor of the sacral area with S3 root irritation resulting in bladder dysfunction is presented and its possible relationship to spinal puncture is discussed.
  • (13) The present study did not identify any baseline parameters such as initial prostate volume, peak flow rates, or obstructive or irritative symptom scores that correlated with clinical outcome.
  • (14) Scores on the "dependent smoking" subscale of the smoking motivation questionnaire correlated significantly with overall withdrawal severity, craving, and increased irritability.
  • (15) The airways can be affected by inflammation, can be targets of infection, and can respond to chemical irritants with bronchoconstrictive responses.
  • (16) Some pulp irritation can occur if deep restorations are not placed over a protective film.
  • (17) MIDAZOLAM IS SUPERIOR TO DIAZEPAM IN CERTAIN WAYS: it has a more rapid onset; produces greater anterograde amnesia, less postoperative drowsiness, less venous irritation and less likelihood of thrombophlebitis development.
  • (18) Primary invasive adenocarcinoma of the bladder was diagnosed in a fifty-two-year-old male with a two-month history of irritative voiding symptoms.
  • (19) We studied seventy patients, 23 males and 47 females with irritable bowel syndrome in adolescence aged 13-19 yrs, who visited the department of psychosomatic medicine in Takano Hospital during about six year period of April, 1986-July, 1992.
  • (20) The study suggested that 1) diabetes and "prediabetes" produce significant changes in levels of chondroitin 4, 6, and dermatan sulfates within alveolar bone, 2) in "prediabetic" animals, interdental bone loss occurs prior to the onset of clinical symptoms and in the absence of local irritating factors, the bone height appears to return to normal levels, and 3) there may be a correlation between alveolar bone height and relative levels of dermatan sulfate.

Stimulate


Definition:

  • (v. t.) To excite as if with a goad; to excite, rouse, or animate, to action or more vigorous exertion by some pungent motive or by persuasion; as, to stimulate one by the hope of reward, or by the prospect of glory.
  • (v. t.) To excite; to irritate; especially, to excite the activity of (a nerve or an irritable muscle), as by electricity.

Example Sentences:

  • (1) Stimulation of human leukocytes with various chemical mediators such as TPA, f-Met-Leu-Phe, LTB4, etc.
  • (2) The optimal size for stimulation was between 5 degrees and 12 degrees (visual angle).
  • (3) After stimulation with lipopolysaccharide and calcium ionophore A23187, culture supernatants of clones c18A and c29A showed cytotoxic activity against human melanoma A375 Met-Mix and other cell lines which were resistant to the tumor necrosis factor, lymphotoxin and interleukin 1.
  • (4) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
  • (5) In conclusion, in S-rats a glucose-stimulated insulin release is accompanied by an increase in IBF, but this is not observed in P-rats.
  • (6) Stimulation is also observed with mixtures of APC expressing DPw3 and APC expressing A1, and likewise, DPw3+ APC become stimulatory when preincubated with supernatants from A1-positive cells.
  • (7) We have previously shown that serotonin is present in secretory granules of frog adrenochromaffin cells; concurrently, we have demonstrated that serotonin is a potent stimulator of corticosterone and aldosterone secretion by adrenocortical cells.
  • (8) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
  • (9) We have investigated a physiological role of endogenous insulin on exocrine pancreatic secretion stimulated by a liquid meal as well as exogenous secretin and cholecystokinin octapeptide (CCK-8) in conscious rats.
  • (10) Whether hen's egg yolk can be used as a sperm motility stimulant in the treatment of such conditions as asthenospermia and oligospermia is subjected for further study.
  • (11) Some of those drugs are able to stimulate the macrophages, even in an aspecific way, via the gut associated lymphatic tissue (GALT), that is in connection with the bronchial associated lymphatic tissue (BALT).
  • (12) The results also suggest that the dispersed condition of pigment in the melanophores represents the "resting state" of the melanophores when they are under no stimulation.
  • (13) dl-Methionine stimulated the synthesis of cephalosporins when added after the growth phase.
  • (14) Bradykinin also stimulated arachidonic acid release in decidual fibroblasts, an effect which was potentiated in the presence of epidermal growth factor (EGF), but which was not accompanied by an increase in PGF2 alpha production.
  • (15) Pokeweed mitogen-stimulated rat spleen cells were identified as a reliable source of rat burst-promoting activity (PBA), which permitted development of a reproducible assay for rat bone marrow erythroid burst-forming units (BFU-E).
  • (16) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
  • (17) Estimates of potential for gastrointestinal side effects using the rat enteropooling assay and in vivo monkey effects indicate that diarrhea will be substantially reduced with retention of uterine stimulating potency.
  • (18) Because it has been suggested that the lathyrogen, BAPN, may stimulate the release of proteases, the protease inhibitors Trasylol and epsilon-aminocaproic acid (EACA) were given alone or in combination to BAPN-treated rats.
  • (19) The present study was designed to test the hypothesis that the decreased Epi response following ET was due to 1) depletion of adrenal Epi content such that adrenomedullary stimulation would not release Epi, 2) decreased Epi release with direct stimulation, i.e., desensitization of release, or 3) decreased afferent signals generated by ET itself.
  • (20) Stimulation of atrial H1-receptors is suggested to directly cause an increase in Ca-channel conductance independent of intracellular cAMP content.