bradykinin

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Related to bradykinin: Prostaglandins, histamine, kallikrein, substance P

bradykinin

[brad″e-ki´nin]

a nonapeptide kinin formed from a plasma protein, high-molecular-weight (HMW) kininogen by the action of kallikrein; it is a very powerful vasodilator that increases capillary permeability and, in addition, constricts smooth muscle and stimulates pain receptors.

bra·dy·ki·nin

(brad'ē-kī'nin),

The nonapeptide Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg, produced from the decapeptide kallidin (bradykininogen) that is produced from α₂-globulin by kallikrein, normally present in blood in an inactive form and similar to trypsin in action; bradykinin is one of several plasma kinins, is a potent vasodilator, and is one of the physiologic mediators of anaphylaxis released from cytotropic antibody-coated mast cells following reaction with antigen (allergen) specific for the antibody.

Synonym(s): kallidin 9, kallidin I, kinin 9

[brady- + G. kineō, to move]

Farlex Partner Medical Dictionary © Farlex 2012

bradykinin

(brăd′ĭ-kī′nĭn, -kĭn′ĭn)

A biologically active polypeptide, consisting of nine amino acids, that forms from a blood plasma globulin and mediates the inflammatory response, increases vasodilation, and causes contraction of smooth muscle.

bradykinin

A vasoactive nonapeptide (RPPGFSPFR) formed by action of proteases on kininogens, which is very similar to kallidin (the same sequence, but with an additional N terminal lysine). It is a potent vasodilator, increasing the permeability of postcapillary venules and acting on endothelial cells to activate phospholipase A2; it is also spasmogenic for some smooth muscle and evokes pain.

bra·dy·ki·nin

(brad'ē-kī'nin)

The nonapeptide Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg, normally present in blood in an inactive form; one of the plasma kinins, a potent vasodilator and mediator of anaphylaxis.

[brady- + G. kineō, to move]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

bradykinin

A peptide that widens blood vessels (vasodilatation) and lowers blood pressure, increases capillary permeability and the secretion of saliva and mediates pain associated with inflammation. Bradykinin is inactivated by the angiotensin-converting enzyme.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

bradykinin

a hormone formed from a kininogen in the blood plasma that has the effect of rapid VASODILATION in the skin.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

bra·dy·ki·nin

(brad'ē-kī'nin)

One of several plasma kinins, a potent vasodilator; physiologic mediator of anaphylaxis released from cytotropic antibody-coated mast cells following reaction with antigen (allergen) specific for the antibody.

[brady- + G. kineō, to move]

Medical Dictionary for the Dental Professions © Farlex 2012

References in periodicals archive ?

Role of bradykinin in inflammatory arthritis: identification and functional analysis of bradykinin receptors on human synovial fibroblasts.

An Extensive Study of the Functional Polymorphisms of Kinin-Kallikrein System in Rheumatoid Arthritis Susceptibility

As stated previously, cerebral ischemia increases the amount of B2 bradykinin receptors in the brain which can increase the risk of developing angioedema with tPA, but it is unclear if this increase in receptors occurs only in ischemic CVAs or in transient ischemic accidents (TIAs) as well.

Institutional Incidence of Severe tPA-Induced Angioedema in Ischemic Cerebral Vascular Accidents

The negative peptide bradykinin, Caeridin-1, and S5-Caeridin-1 barely showed membrane-permeabilising activity up to 512 [micro]M.

Discovery of Novel Caeridins from the Skin Secretion of the Australian White's Tree Frog, Litoria caerulea

Queme et al., "Bradykinin and nerve growth factor play pivotal roles in muscular mechanical hyperalgesia after exercise (delayed-onset muscle soreness)," Journal of Neuroscience, vol.

Preconditioning Contractions Suppress Muscle Pain Markers after Damaging Eccentric Contractions

Pesquero et al., "Blockade of bradykinin receptor B1 but not bradykinin receptor B2 provides protection from cerebral infarction and brain edema," Stroke, vol.

The Long-Term Outcome Comparison of Different Time-Delayed Kallikrein Treatments in a Mouse Cerebral Ischemic Model

ADIPOQ = adiponectin, C1Q and collagen domain containing; IRS2 = insulin receptor substrate 2; ACSL1 = acyl-CoA synthetase long chain family member 1; PLIN = lipid storage droplet 2-like; CD36 = CD36 molecule; PNPLA3 = patatin-like phospholipase domain containing 3; SCD = stearoyl-CoA desaturase; BDKRB2 = bradykinin receptor B2; ADORA3 = adenosine A3 receptor; SOX9 = sex determining region Y-box 9; TXN = thioredoxin; CDKN2C = cyclin-dependent kinase inhibitor 2C; GSTM3 = glutathione S-transferase mu 3; PTH1R = parathyroid hormone 1 receptor; CKB = creatine kinase B; AOC1 = amine oxidase, copper containing 1; AOC3 = amine oxidase, copper containing 3; TIMP1 = TIMP metallopeptidase inhibitor 1; PTN = pleiotrophin.

Susceptible and Prognostic Genetic Factors Associated with Diabetic Peripheral Neuropathy: A Comprehensive Literature Review

Treatment with bradykinin reduced TF development in [Il17ra.sup.-/-] mice via upregulating Mmp2 and tPA levels in the obstructed kidney.

IL-17 Receptor Signaling Negatively Regulates the Development of Tubulointerstitial Fibrosis in the Kidney

While functional anti-FceRIa or anti-lgE can cause histamine release and risk of anaphylaxis, C1 INH deficiency or dysfunction and increased bradykinin can lead to risk of laryngeal angioedema, and things as simple as a tooth extraction can be life-threatening, as well as the endotracheal intubation meant to save a life, "Trauma, including surgically induced trauma, especially involving endotracheal intubation or manipulation, may trigger life-threatening laryngeal edema." (21,47,48)

Potential Tests for an Autoimmune Subgroup of Patients with CFS and MCS Could Help Bring Illness Recognition: Helping to Identify Which Patients May Test Positive

serpens are alkaloids, saponins, tannins and flavonoids which may be responsible for inhibiting the mediators release like prostaglandins, histamine, serotonin or bradykinin as pain suppressors in the late phase [24, 36] The outcome of the study is that the anti-nociceptive property of the plant was mediated through the peripheral mechanism; augmented by interference of centrally acting pain mediators.

Antinociceptive Activity of the Crude Methanolic Extract and Different Fractions of Viola serpens Wall

So far, only ACE, alpha-actibnin 3 (ACTN3) and bradykinin receptor B2 (BRDKB2) (due to connections with ACE) [27, 28], are genes most frequently connected with enhanced performance.

TRAINING FOR GENES--HOW TO DESIGN IT?/TRENING ZA GENE--KAKO GA DIZAJNIRATI?

Bradykinin (BK) is a low molecular weight nonapeptide that exerts powerful effects on different pathophysiological conditions.

Expression of bradykinin in human placenta from healthy and preeclamptic women/Expressao de bradicinina em placentas humanas saudaveis e pre-eclampticas

However, it mainly suffers from injection pain,12 as an inevitable issue of which even adults are afraid.13 With elusive mechanisms, the injection pain of propofol has mainly been attributed to the pain-inducing effect originating from the contact between aqueous phase of emulsion and free nerve endings14 or the delaying effect based on bradykinin produced by the activated kinin cascade system.15 Bradykinin leads to local phlebectasia and increases vascular wall permeability, so propofol can penetrate the vascular wall to contact with more free nerve endings, thus aggravating the injection pain.16

Prevention of anesthesia-induced injection pain of propofol in pediatric anesthesia

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