Evaluation of the antiulcerogenic activity of violacein and its modulation by the inclusion complexation with beta-cyclodextrin.

Abstract:

:The effects of beta-cyclodextrin (betaCD) inclusion complexation on the ability of violacein to prevent gastric ulceration in mice were studied. Violacein-betaCD inclusion complexes were prepared in 1:1 and 1:2 molar ratios and analysed by differential scanning calorimetry and powder X-ray diffractometry. Violacein previously administered orally at 10 mg/kg significantly reduced indomethacin-induced gastric lesions, as well as 100 mg/kg of cimetidine (positive control). However, betaCD complexation in both molar ratios significantly potentiated the protective action of violacein. In the HCl--ethanol-induced gastric ulcer model, violacein and the 1:2 inclusion complex (10 mg/kg, p.o.) inhibited gastric damage by almost 85%, whereas a 63% reduction was observed for the positive control, lansoprazole, at 30 mg/kg. In contrast, treatment with the 1:1 inclusion complex resulted in almost total disappearance of the antiulcer activity in this model. No significant changes in stress-induced gastric injury were found. In addition, the 1:2 inclusion complex improved the antilipoperoxidant activity of violacein in rat liver cells exposed to t-butyl hydroperoxide, whereas the 1:1 complex was less active than violacein. In summary, the 1:2 betaCD inclusion complex has gastroprotective properties similar to or higher than that of violacein. An increase in mucosal defensive mechanisms and protection against peroxidative damage might be involved.

authors

Durán N,Justo GZ,Melo PS,De Azevedo MB,Brito AR,Almeida AB,Haun M

doi

10.1139/y03-033

subject

Has Abstract

pub_date

2003-04-01 00:00:00

pages

387-96

issue

4

eissn

0008-4212

issn

1205-7541

journal_volume

81

pub_type

杂志文章
  • A tubule cell model for ifosfamide nephrotoxicity.

    abstract::Mechanisms leading to ifosfamide (IF)-induced renal damage have not been fully elucidated. Recent work suggests that localized renal tubular metabolism of IF and the production of the nephrotoxic chloroacetaldehyde may lead to nephrotoxicity. Presently no pharmacological method to reduce IF nephrotoxicity has been ide...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y05-036

    authors: Aleksa K,Halachmi N,Ito S,Koren G

    更新日期:2005-06-01 00:00:00

  • Hypertensive structural changes in blood vessels: do endothelial cells hold the key?

    abstract::In recent decades, the complexity of the endothelium and its major role in maintaining or altering blood vessel architecture are being revealed. In contrast, the vascular smooth muscle cell previously received the most attention. I suggest support of the hypothesis that the endothelium is the key to vascular disease. ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y92-069

    authors: Todd ME

    更新日期:1992-04-01 00:00:00

  • Lingonberry anthocyanins protect cardiac cells from oxidative-stress-induced apoptosis.

    abstract::Lingonberry grown in northern Manitoba, Canada, contains exceptionally high levels of anthocyanins and other polyphenols. Previous studies from our lab have shown that lingonberry anthocyanins can protect H9c2 cells from ischemia-reperfusion injury and anthocyanin-rich diets have been shown to be associated with decre...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2016-0667

    authors: Isaak CK,Petkau JC,Blewett H,O K,Siow YL

    更新日期:2017-08-01 00:00:00

  • Oxidative stress burden inhibits spermatogenesis in adult male rats: testosterone protective effect.

    abstract::In this study, we aimed to investigate the protective effects of androgens, using letrozole (LET; an aromatase inhibitor), grape seed extract (GSE; a naturally occurring aromatase inhibitor and antioxidant), and testosterone propionate (Tp), against methotrexate (MTX)-induced testicular toxicity in adult male rats. MT...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2017-0459

    authors: Makary S,Abdo M,Fekry E

    更新日期:2018-04-01 00:00:00

  • Carotid-cardiac baroreflex and training status: significance of initial responsiveness.

    abstract::The aim of this study was to demonstrate that within a population of healthy men (n = 15) of varying levels of aerobic fitness (VO2max = 36-74 mL.kg-1.min-1), (i) there are high and low responders with respect to carotid-cardiac baroreflex responsiveness, despite similar baseline heart rates (HRs) both at rest and dur...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 临床试验,杂志文章

    doi:10.1139/y95-014

    authors: Savard GK,Lundie MJ

    更新日期:1995-01-01 00:00:00

  • meta-iodobenzylguanidine uptake in the hypertensive-diabetic rat heart: a marker for myocardial dysfunction?

    abstract::The purpose of this study was to investigate the cardiac adrenergic neuronal changes induced by diabetes and hypertension by using an analogue of norepinephrine, meta-iodobenzylguanidine (MIBG), and to compare these changes with the contractile state of ventricular papillary muscle. The tissue concentration of norepin...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y94-164

    authors: Herman LM,Dai S,Hartman NG,McNeill JH

    更新日期:1994-10-01 00:00:00

  • Vanadium exposure enhances lipid peroxidation in the kidney of rats and mice.

    abstract::Vanadium (V) as sodium orthovanadate induces an increase in lipid peroxidation in the kidneys after a single subcutaneous or intraperitoneal injection to rats or mice. The rate of malondialdehyde (MDA) formation, an index of lipid peroxidation, by kidney homogenates increased by more than 100% 1 h after injection. Chr...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y85-037

    authors: Donaldson J,Hemming R,LaBella F

    更新日期:1985-03-01 00:00:00

  • Leukotriene C4 action and metabolism in the isolated perfused bullfrog heart.

    abstract::The effects of leukotrienes (LTs) have been widely studied in the isolated perfused mammalian heart; however, little is known about the effect or metabolism of LTs in the isolated bullfrog heart. Isolated perfused bullfrog hearts were administered randomized doses of LTC4, LTD4, or LTE4. The cardiac parameters of hear...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y88-161

    authors: Herman RP,Heller RS,Canavan CM,Herman CA

    更新日期:1988-08-01 00:00:00

  • Immune responses to inflammation and trauma: a physical training model.

    abstract::Physical activity and training have some potential as tools for examining immune responses to inflammation and trauma. Contributors to the present symposium review various aspects of the inflammatory process, including issues of lymphocyte recirculation and endotoxemia. They examine also the extent and nature of the i...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章,评审

    doi:10.1139/cjpp-76-5-469

    authors: Shephard RJ,Shek PN

    更新日期:1998-05-01 00:00:00

  • Prior glucose deprivation increases the first phase of glucose-induced insulin response: possible involvement of endogenous ATP and (or) ADP.

    abstract::A possible implication of endogenously released ATP and (or) ADP in insulin response to glucose stimulation was investigated in the isolated rat pancreas. The first phase of insulin response to the same glucose concentration (8.3 mM) was much higher in pancreas previously perfused in the absence of glucose than in pan...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y93-086

    authors: Chapal J,Bertrand G,Hillaire-Buys D,Gross R,Loubatières-Mariani MM

    更新日期:1993-08-01 00:00:00

  • l-carnitine protects human hepatocytes from oxidative stress-induced toxicity through Akt-mediated activation of Nrf2 signaling pathway.

    abstract::In our previous study, l-carnitine was shown to have cytoprotective effect against hydrogen peroxide (H2O2)-induced injury in human normal HL7702 hepatocytes. The aim of this study was to investigate whether the protective effect of l-carnitine was associated with the nuclear factor erythroid 2 (NFE2)-related factor 2...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2015-0305

    authors: Li J,Zhang Y,Luan H,Chen X,Han Y,Wang C

    更新日期:2016-05-01 00:00:00

  • Inhibitory innervation of colonic smooth muscle cells and interstitial cells of Cajal.

    abstract::The effect of neural inhibition on the electrical activities of circular and longitudinal colonic smooth muscle was investigated. In addition, a comparative study was carried out between circular muscle preparations with and without the "submucosal" and "myenteric plexus" network of interstitial cells of Cajal (ICC) t...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y90-063

    authors: Huizinga JD,Berezin I,Daniel EE,Chow E

    更新日期:1990-03-01 00:00:00

  • Comparison of the specific binding of cortisol in human amnion, amniotic fluid, and plasma.

    abstract::The purpose of this study was to compare the specific cortisol-binding protein found associated with human amnion with specific cortisol binding in human amniotic fluid and plasma. The electrophoretic mobility on polyacrylamide gels of the specific cortisol binding in amnion, amniotic fluid, and maternal plasma was id...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y87-010

    authors: Riopel L,Gibb W

    更新日期:1987-01-01 00:00:00

  • Isolation and characterization of calcineurin from bovine brain.

    abstract::Calcineurin was isolated from bovine cerebrum extracts by sequential chromatography on Affi-Gel blue and calmodulin affinity columns. Calcineurin so isolated was approximately 90% pure and was composed of equimolar amounts of subunit A (Mr = 61 000-63 000) and subunit B (Mr = 15 000-17 000) when examined by sodium dod...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y85-165

    authors: Gupta RC,Khandelwal RL,Sulakhe PV

    更新日期:1985-08-01 00:00:00

  • Mechanical properties of human mitral valve chordae tendineae: variation with size and strain rate.

    abstract::A knowledge of the mechanical properties of valve tissue is a necessary prerequisite for a better understanding of valvular behavior and design of prosthetic heart valves. Elastic response of chordae tendineae under strain rates of 0.05 cm min(-1)(6.25% min(-1)) to 12.7 cm min(-1)(1600% min(-1)) were obtained by the a...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y75-048

    authors: Lim KO,Boughner DR

    更新日期:1975-06-01 00:00:00

  • Abnormal magnesium metabolism in two rat models of genetic hypertension.

    abstract::Magnesium concentrations in erythrocyte ghosts and arterial tissue of male, spontaneously hypertensive rats (SHR) were significantly less than in these tissues of male normotensive controls (Wistar-Kyoto; WKY) of the same age, which were also fed rat chow and tap water. The magnesium concentration in SHR erythrocyte g...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y92-170

    authors: Wells IC,Agrawal DK

    更新日期:1992-09-01 00:00:00

  • Decondensation of Xenopus sperm chromatin using Saccharomyces cerevisiae whole-cell extracts.

    abstract::Biochemical studies using highly condensed Xenopus sperm chromatin and protein extracts prepared from multiple systems have lead to the identification of conserved proteins involved in chromosome decondensation. However, mutations to these proteins are unavailable as the systems used are not amenable to genetic studie...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y05-042

    authors: Harkness TA

    更新日期:2006-03-01 00:00:00

  • Effects of traditionally used anxiolytic botanicals on enzymes of the gamma-aminobutyric acid (GABA) system.

    abstract::In Canada, the use of botanical natural health products (NHPs) for anxiety disorders is on the rise, and a critical evaluation of their safety and efficacy is required. The purpose of this study was to determine whether commercially available botanicals directly affect the primary brain enzymes responsible for gamma-a...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/Y07-083

    authors: Awad R,Levac D,Cybulska P,Merali Z,Trudeau VL,Arnason JT

    更新日期:2007-09-01 00:00:00

  • Do different tendons exhibit the same response following chronic exposure to statins?

    abstract::Over the past few years, a number of cases of tendon injuries associated with statin therapy have been reported. In this study, we assessed whether statins can affect the extracellular matrix (ECM) of the deep digital flexor tendon (DDFT) and patellar tendon (PT). Wistar rats were assigned to groups treated with atorv...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2016-0133

    authors: Oliveira LP,Vieira CP,Marques PP,Pimentel ER

    更新日期:2017-04-01 00:00:00

  • Implication of multiple signaling pathways in the regulation of angiotensin II induced enhanced expression of Giα proteins in vascular smooth muscle cells.

    abstract::We have previously shown that A10 vascular smooth muscle cells (VSMC) exposed to angiotensin II (Ang II) exhibited overexpression of Giα proteins. In the present study, we examined the involvement of different signaling pathways in regulating Ang II induced enhanced expression of Giα proteins in VSMC by using pharmaco...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y2012-042

    authors: Li Y,Anand-Srivastava MB

    更新日期:2012-08-01 00:00:00

  • The effect of midkine on growth factors and oxidative status in an experimental wound model in diabetic and healthy rats.

    abstract::Wound healing is important for longevity. Midkine is a cytokine involved in controlling tissue repair and new tissue development, and in regulating inflammation. We investigated the effect of midkine on wound healing in rats. In total, 108 Wistar albino rats were used: 12 as healthy and diabetic controls; 96 were spli...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2016-0439

    authors: Dik B,Baş AL,Yazıhan N

    更新日期:2017-05-01 00:00:00

  • Characterization of kininogenase activity of an acidic proteinase isolated from human kidney.

    abstract::An acidic proteinase was purified from human kidney cortex. The enzyme showed a molecular mass of 31 kDa by SDS-PAGE, 36 kDa by gel filtration, and isoelectric points of 5.2 and 6.1. The optimum pH for hydrolysis of bovine hemoglobin was about 3.5. Reverse-phase HPLC analysis of the incubation mixture of the enzyme wi...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:

    authors: Gomes RA,Juliano L,Chagas JR,Hial V

    更新日期:1997-06-01 00:00:00

  • Epithelial distribution of neural receptors in the guinea pig small intestine.

    abstract::Neural and paracrine agents, such as dopamine, epinephrine, and histamine, affect intestinal epithelial function, but it is unclear if these agents act on receptors directly at the enterocyte level. The cellular localization and villus-crypt distribution of adrenergic, dopamine, and histamine receptors within the inte...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y05-024

    authors: Baglole CJ,Davison JS,Meddings JB

    更新日期:2005-05-01 00:00:00

  • Co-agonist of glucagon and GLP-1 reduces cholesterol and improves insulin sensitivity independent of its effect on appetite and body weight in diet-induced obese C57 mice.

    abstract::Dual agonism of glucagon and glucagon-like peptide-1 (GLP-1) receptors reduce body weight without inducing hyperglycemia in rodents. However, the effect of a co-agonist on insulin sensitivity and lipid metabolism has not been thoroughly assessed. Diet-induced obese (DIO) mice received 0.5 mg·kg(-1) of co-agonist or 2....

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2013-0189

    authors: Patel V,Joharapurkar A,Dhanesha N,Kshirsagar S,Patel K,Bahekar R,Shah G,Jain M

    更新日期:2013-12-01 00:00:00

  • Improved carbohydrate tolerance in fibre-fed rats: studies of the chronic effect.

    abstract::The effect of chronic consumption of diets containing either different sources of dietary fibre (8% guar, 8% pectin, or 8% multifibre) or low carbohydrate upon carbohydrate tolerance was examined in rats. Weight gain was significantly lower throughout the entire 28-day study period with the guar group and after 20 day...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y82-107

    authors: Track NS,Cannon MM,Flenniken A,Katamay S,Woods EF

    更新日期:1982-06-01 00:00:00

  • Effect of albuterol on oxygen uptake and Na+-K+ ATPase activity of jejunal epithelia and liver in chickens.

    abstract::Changes in metabolic characteristics of the liver and jejunal epithelia as a result of feeding the beta-agonist albuterol to chickens for 3 and 6 weeks were studied. Feeding albuterol resulted in a change in weights of the liver and small intestines. Chickens fed albuterol for 6 weeks had greater levels of plasma none...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y89-069

    authors: Rompala RE,Darre MJ

    更新日期:1989-05-01 00:00:00

  • Binocular interactions and visual acuity loss in esotropic cats.

    abstract::Visual acuity was measured behaviorally in various groups of cats by using a two-choice discrimination procedure. Cats in group 1 were rendered strabismic soon after birth by sectioning the tendon of the lateral rectus muscle (unilateral esotropia); at adulthood, their visual acuity (VA) was evaluated, after which the...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y95-195

    authors: Ptito M,Bouchard P,Lepore F,Quessy S,Di Stefano M,Guillemot JP

    更新日期:1995-09-01 00:00:00

  • The 1990 Borden Award Lecture. Dietary regulation of fatty acid and triglyceride metabolism.

    abstract::The level of circulating triacylglycerols is determined by the balance between their delivery into the plasma and their removal from it. Plasma triacylglycerols are derived either from dietary fat as chylomicrons or from endogenous hepatic synthesis as very low density lipoproteins. Their removal occurs through the ac...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章,评审

    doi:10.1139/y91-242

    authors: Herzberg GR

    更新日期:1991-11-01 00:00:00

  • The force dependence of isometric and concentric potentiation in mouse muscle with and without skeletal myosin light chain kinase.

    abstract::The isometric potentiation associated with myosin phosphorylation is force dependent. The purpose of this study was to assess the influence of a pre-existing period of isometric force on the concentric force potentiation displayed by mouse muscles with and without the ability to phosphorylate myosin. We tested isometr...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2014-0118

    authors: Gittings W,Aggarwal H,Stull JT,Vandenboom R

    更新日期:2015-01-01 00:00:00

  • Voltage-dependent inactivation of the potassium current of embryonic chick hepatocytes.

    abstract::The whole-cell patch electrode voltage clamp technique was used to study the inactivation properties of the delayed rectifying potassium current of single cultured embryonic chick hepatocytes at 20 degrees C. The potassium current activates maximally within 250-500 ms of membrane depolarization, after which it decays ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y91-110

    authors: Hill CE,Shrier A

    更新日期:1991-06-01 00:00:00