(S,R)-3-Phenyl-4,5-dihydro-5-isoxazole acetic acid–Nitric Oxide (GIT-27NO) – New Dress for Nitric Oxide Mission

2010 ◽  
pp. 443-457
Author(s):  
Sanja Mijatovic ◽  
Danijela Maksimovic-Ivanic ◽  
Marco Donia ◽  
Stanislava Stosic-Grujicic ◽  
Gianni Garotta ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid

scholarly journals AGE-RELATED CHANGES IN PROSTAGLANDIN E2, NITRIC OXIDE, AND VASCULAR ENDOTHELIAL GROWTH FACTOR LEVELS IN GASTRIC MUCOSA DURING THE HEALING OF ACETIC ACID-INDUCED ULCER

2018 ◽  
Vol 11 (10) ◽  
pp. 517
Author(s):  
Ayodeji Folorunsho Ajayi ◽  
Busuyi David Kehinde ◽  
Olubodun Micheal Lateef ◽  
Bolaji Aderibigbe Akorede
Keyword(s):  
Nitric Oxide ◽  
Vascular Endothelial Growth Factor ◽  
Acetic Acid ◽  
Growth Factor ◽  
Gastric Mucosa ◽  
Prostaglandin E2 ◽  
Ulcer Healing ◽  
Vascular Endothelial ◽  
Epithelial Restitution ◽  
Endothelial Growth Factor

Objective: Nitric oxide (NO), prostaglandin E2 (PgE2), and vascular endothelial growth factor (VEGF) are fundamental regulators of epithelial restitution and angiogenesis. They play important roles in ulcer healing. Insights into their possible changes during gastric ulcer healing putting age into consideration could give a guide to the proper management of ulcers in the aging population. This study, therefore, examined alterations in the concentrations of PgE2, NO, and VEGF in the gastric mucosa of rats of different ages after induction of ulcer and during healing.Methods: Male Wister rats (aged 3, 6, and 18 months old) were divided into three groups according to their ages. The ulcer was induced using the acetic acid ulcer model. Healing indices studied on days 3, 7, and 14 were the macroscopic dimension of ulcer, stomach tissue concentration of PgE2, NO, and VEGF, with the immunohistochemical expression of VEGF.Results: Outcome of this study showed 100%, 88.36%, and 62.30% area of mucosa healed in 3-, 6-, and 18-month-old rats respectively, on day 14 post-induction of ulcer. PgE2, NO, and VEGF concentrations were inversely proportional to age during healing. Immunohistochemical staining showed that younger rat (3 and 6 months old) had higher expression of VEGF throughout the healing period.Conclusion: It was therefore concluded that the slower rate of healing in older rats could be due to reduced gastroprotection, epithelial restitution, and angiogenesis as age increases.

scholarly journals Protective Effect of Ocotillol, the Derivate of Ocotillol-Type Saponins in Panax Genus, against Acetic Acid-Induced Gastric Ulcer in Rats Based on Untargeted Metabolomics

2020 ◽  
Vol 21 (7) ◽  
pp. 2577 ◽  
Author(s):  
Cuizhu Wang ◽  
Yuze Yuan ◽  
He Pan ◽  
Alan Chen-Yu Hsu ◽  
Jinluan Chen ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Gastric Ulcer ◽  
Growth Factor ◽  
Gastric Mucosa ◽  
Epidermal Growth Factor ◽  
Serum Levels ◽  
Gastroprotective Effect ◽  
Epidermal Growth ◽  
Oxide Synthase

Gastric ulcer (GU), a prevalent digestive disease, has a high incidence and is seriously harmful to human health. Finding a natural drug with a gastroprotective effect is needed. Ocotillol, the derivate of ocotillol-type saponins in the Panax genus, possesses good anti-inflammatory activity. The study aimed to investigate the gastroprotective effect of ocotillol on acetic acid-induced GU rats. The serum levels of endothelin-1 (ET-1) and nitric oxide (NO), the gastric mucosa levels of epidermal growth factor, superoxide dismutase and NO were assessed. Hematoxylin and eosin staining of gastric mucosa for pathological changes and immunohistochemical staining of ET-1, epidermal growth factor receptors and inducible nitric oxide synthase were evaluated. A UPLC-QTOF-MS-based serum metabolomics approach was applied to explore the latent mechanism. A total of 21 potential metabolites involved in 7 metabolic pathways were identified. The study helps us to understand the pathogenesis of GU and to provide a potential natural anti-ulcer agent.

scholarly journals Isolation and characterization of cytotoxic and anti-inflammatory constituents from Scoparia dulcis L

2020 ◽  
Vol 44 (7-8) ◽  
pp. 381-387
Author(s):  
Mohammad Nur-e-Alam ◽  
Sarfaraz Ahmed ◽  
Muhammad Yousaf ◽  
Shabana I Khan ◽  
Ramzi A Mothana ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Nitric Oxide Synthase ◽  
Inducible Nitric Oxide Synthase ◽  
Nuclear Factor Kappa B ◽  
Nuclear Factor ◽  
Scoparia Dulcis ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide

Scoparia dulcis L. is one of the edible widely distributed Scropholariaceae species in Asia, Africa and America. It is used in the treatment of respiratory and inflammatory diseases, diabetes, hypertension, cancer, hepatitis and tuberculosis. A phytochemical investigation on S. dulcis led to the isolation of two new acyclic diterpenes Acetic acid 6-hydroxy-2-(6-hydroxy-4-methyl-hex-4-enylidene)-4,8-dimethyl-undeca-4,8-dienyl ester (1) and Acetic acid 8-hydroxy-2-(6-hydroxy-4-methyl-hex-4-enylidene)-6,10-dimethyl-undeca-5,9-dienyl ester (2) in addition to eight known compounds (3–10), namely scopadulciol (3), 4- epi-scopadulcic acid B (4), dulcidiol (5), scopadulcic acid B (6), hymenoxin (7), glutinol (8), eupatilin (9) and 5-demethylnobiletin (10). The structures elucidation was performed using spectroscopic means, including 1D and 2D nuclear magnetic resonance and high-resolution electrospray ionization mass spectrum spectrometric analysis. Furthermore, the isolated compounds were investigated for their anti-inflammatory activity through the determination of inhibition of nuclear factor-kappa B activity in human chondrosarcoma (SW1353) cells, the inhibition of inducible nitric oxide synthase mouse macrophages (RAW264.7) and the decrease in cellular oxidative stress in HepG2 cells. Moreover, the cytotoxic activity was investigated against four cancer and two kidney cell lines. Among the isolates, 3, 5 and 10 showed anti-inflammatory activity in terms of inhibiting nuclear factor-kappa B and inducible nitric oxide synthase. Compounds 3–5 were the most cytotoxic towards cancer cell lines (IC50: 3.8 µM to 42.3 µM) followed by 10 (IC50: 30.9- > 64.4 µM). Cytotoxicity of compounds 3–5 was comparable to the activity of doxorubicin.

Novel nitric oxide-donating compound (S,R)-3-phenyl-4,5-dihydro-5-isoxazole acetic acid–nitric oxide (GIT-27NO) induces p53 mediated apoptosis in human A375 melanoma cells

Nitric Oxide ◽  
2008 ◽  
Vol 19 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Sanja Mijatovic ◽  
Danijela Maksimovic-Ivanic ◽  
Marija Mojic ◽  
Graziella Malaponte ◽  
Massimo Libra ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Melanoma Cells ◽  
A375 Melanoma

Silicon induces adventitious root formation in rice (Oryza sativa L.) under arsenate stress with the involvement of nitric oxide and indole-3-acetic acid

2020 ◽  
Author(s):  
Durgesh Kumar Tripathi ◽  
Padmaja Rai ◽  
Gea Guerriero ◽  
Shivesh Sharma ◽  
Francisco J Corpas ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Adventitious Root ◽  
Root Formation ◽  
Oryza Sativa L ◽  
Adventitious Root Formation ◽  
Growth Media ◽  
Simultaneous Application ◽  
Arsenate Stress ◽  
Indole 3 Acetic Acid

Abstract Arsenic (As) negatively affects plant development. Using rice as a model, this study evaluates how the application of silicon (10 µM Si) can favour the formation of adventitious roots under arsenate stress (50 µM As V) as a mechanism to mitigate its negative effects. Indeed, the simultaneous application of As V and Si up-regulated the expression of genes involved in nitric oxide (NO) metabolism (OsNOA1), cell cycle progression (G2-M, OsCDKA1), auxin (IAA, indole-3-acetic acid) biosynthesis (OsYUCCA1 and OsTAA1) and transport (OsPIN1, OsPIN5 and OsPIN10) and Si uptake (OsLsi1 and OsLsi2), which accompanied adventitious root formation. Furthermore, Si triggered the expression and activity of MDHAR and DHAR involved in ascorbate recycling. The treatment with L-NAME, an inhibitor of NO generation, significantly suppressed adventitious root formation, even in the presence of Si; however, supplying NO in the growth media rescued its effects. The data obtained suggest that both NO and IAA are essential for Si-mediated adventitious root formation under As V stress. Interestingly, TIBA (a polar auxin transport inhibitor) suppressed adventitious root formation, even in the presence of Si and SNP (an NO donor), suggesting that Si is involved in a mechanism whereby a cellular signal is triggered and requires NO formation first and, then, IAA.

Sphere of influence of indole acetic acid and nitric oxide in bacteria

2014 ◽  
Vol 55 (5) ◽  
pp. 543-553 ◽  
Author(s):  
Vatsala Koul ◽  
Alok Adholeya ◽  
Mandira Kochar
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Indole Acetic Acid ◽  
Sphere Of Influence

Gisekia pharnaceoides restores colonic mucosal homeostasis by regulating antioxidant enzyme system and cytokines signaling in ulcerative colitis mice model

2021 ◽  
Vol 21 ◽  
Author(s):  
Faraza Javed ◽  
Naveed Aslam ◽  
Hafiza Maida Arshad ◽  
Ambreen Mehmood Awan ◽  
Wafa Majeed ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Ulcerative Colitis ◽  
Acetic Acid ◽  
Hplc Analysis ◽  
Activity Index ◽  
Hematological Parameters ◽  
Disease Activity Index ◽  
Lipid Peroxides ◽  
Mucosal Homeostasis ◽  
Anti Inflammatory

Background: Gisekia pharnaceoides Linn. (Aizoaceae), traditionally known as baluka saag or sareli is commonly found in the deep Cholistan region of Pakistan. It is used by native community for the mitigation of a range of diseases, including inflammatory disorders and gastric ulcers. Objective: This study is designed to evaluate the defensive impact of G. pharnaceoides in acetic acid-induced ulcerative colitis in mice and to discover the mechanism for anti-inflammatory action. Method: The ethanolic crude extract of G. pharnaceoides (Gp.Cr) was prepared and evaluated for phytochemical substances by preliminary screening and HPLC analysis. Anti-inflammatory activity of Gp.Cr (300 and 500 mg/kg) was examined by administration of 200 µl of 7.5% acetic acid intra-rectally to induce ulcerative colitis and colonic mucosal injury, while mucosal homeostasis was evaluated by disease activity index, colonic ulcer score and hematological parameters. Anti-inflammatory potential was quantified by assessing antioxidant enzymes (SOD, CAT, GPX-1), lipid peroxides, nitric oxide and cytokines (IL-1β, IL-6, TNF-α) immunoassays and further analyzed by histological analysis of colon tissues. Results: Phytochemical screening of Gp.Cr revealed the presence of alkaloids, phenols, flavonoids, steroids, tannins and saponins, while HPLC analysis confirmed the presence of quercetin, gallic acid, coumaric and sinapic acid. In acetic acid-induced ulcerative colitis model, Gp.Cr (300 and 500 mg/kg) along with sulphasalazine (500 mg/kg) decreased disease activity index, ulcer scores and hematological parameters. Gp.Cr showed a significant anti-inflammatory potential by increasing antioxidant enzymes and decreasing lipid peroxides, nitric oxide and cytokines levels. Histopathological examination showed significant decline in ulceration and tissue disruption. Conclusion: Hence, the findings confirmed the effectiveness of G. pharnaceoides crude extract in the treatment of ulcerative colitis and might be a promising remedy to manage inflammatory disorders.

Antinociceptive and anti-inflammatory properties of Tetracera alnifolia Willd. (Dilleniaceae) hydroethanolic leaf extract

2018 ◽  
Vol 30 (2) ◽  
pp. 173-184 ◽  
Author(s):  
Olufunmilayo O. Adeyemi ◽  
Ismail O. Ishola ◽  
Elizabeth T. Adesanya ◽  
Destiny O. Alohan
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Potassium Channel ◽  
Leaf Extract ◽  
Paw Edema ◽  
Hot Plate ◽  
Cotton Pellet ◽  
Anti Inflammatory ◽  
Tetracera Alnifolia ◽  
Inflammatory Effect

Abstract Background Tetracera alnifolia Willd. (Dilleniaceae) is used in traditional African Medicine for the treatment of headache, abdominal pain, and rheumatism. Hence, this study sought to investigate the antinociceptive and anti-inflammatory effects of the hydroethanolic leaf extract of T. alnifolia (HeTA) in rodents. Methods Antinociceptive activity was evaluated using the acetic acid-induced writhing, formalin-/capsaicin-induced paw licking and hot plate tests in mice. The contribution of opioidergic, l-arginine-nitric oxide, and ATP-sensitive potassium channel pathways in HeTA-induced antinociception was also evaluated. The anti-inflammatory effect was assessed using the carrageenan-induced paw edema, xylene ear edema, cotton pellet granuloma, and complete Freund’s adjuvant (CFA)-induced arthritis in rats. Results HeTA (100, 200, and 400 mg/kg, p.o.) produced significant (p<0.05) decrease in mean number of acetic acid-induced writhing, time spent licking paw in formalin, and capsaicin tests as well as time course increase in nociceptive reaction latency in hot plate test. HeTA-induced antinociception was prevented by pretreatment of mice with naloxone (non-selective opioid receptor antagonist), l-arginine (nitric oxide precursor), or glibenclamide (ATP-sensitive potassium channel blocker). HeTA (100 mg/kg, p.o.) produced a significant anti-inflammatory effect against carrageenan-induced rat paw edema (1–5 h), xylene-induced ear edema, cotton pellet-induced granuloma formation, and CFA-induced arthritis in rats. The effects of HeTA in various models were similar to the effect of the standard reference drugs. Conclusions Findings from this study showed that HeTA possesses antinociceptive effect possibly mediated through peripheral opioid receptors with activation of l-arginine-nitric oxide and ATP-sensitive potassium channel pathway as well as anti-inflammatory activity.

HPV and cryotherapy male lesions

1992 ◽  
Vol 59 (1_suppl) ◽  
pp. 108-109
Author(s):  
R. Borsa ◽  
P. Polledro ◽  
G. Cordara ◽  
G. Fontana ◽  
M. Abrate
Keyword(s):  
Nitric Oxide ◽  
Acetic Acid ◽  
Disease Control ◽  
Preferential Treatment ◽  
Case Histories ◽  
Beta Interferon ◽  
Etiologic Agents ◽  
Disease Free ◽  
Male Genital

HPV are the etiologic agents in condylomas. Serotypes 6-11-16 cause flat or esophytic lesions. A colposcope is used in our Centre, after applying acetic acid, for revealing otherwise invisible male genital lesions from HPV. Our case histories refer to 21 patients with condylomatosis, treated as follows: 13 underwent cryotherapy by means of a device using expanding nitric oxide through a suitable probe; 8 underwent surgical abscission. In all cases beta-interferon was used locally. After a minimum of 3 to a maximum of 16 months, patients are disease free. Our experience with cryotherapy is therefore extremely positive, confirming statements by the Center for Disease Control in Atlanta to the effect that cryotherapy should be considered the preferential treatment for HPV lesions.

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