نتایج جستجو برای: free radical scavenging

تعداد نتایج: 591121  

2012
Sonam Pandey R. C. Agrawal S. Maheshwari

In this present study our aim was to evaluate In vitro antioxidant and free radical scavenging potential of methanolic extracts of Bauhinia variegata Linn. Different parts of Bauhinia variegata like leaves, bark and flowers have free radical scavenging activity by hydroxyl radical scavenging method. All extracts have different level of antioxidant activity. Methanol extracts was found to be goo...

Journal: :Chemical & pharmaceutical bulletin 2001
K Kirima K Tsuchiya M Yoshizumi T Kameda H Houchi M Azuma T Tamaki

The free radical scavenging and/or generating activity of dopamine-4-O-sulfate was examined and compared with that of dopamine. In humans, dopamine mostly exists in two isomeric forms of sulfate ester conjugates as metabolites; i.e., dopamine-3-O-sulfate and dopamine-4-O-sulfate in the circulation. Dopamine is generally believed to be oxidized by molecular oxygen or another reactive oxygen spec...

2015
Priti S. Patil Pratima A. Tatke Satish Y. Gabhe

Introduction: Rosa damascena mill L., well-known as Rose, has numerous pharmacological properties including antioxidant, antitussive, relaxant effect on tracheal chains, hypnotic, antibacterial and anti-HIV. Objective: The objective of the present study was to evaluate antioxidant and free radical scavenging activity of various extracts of Rose flower petals. Methods: Chloroform, acetone, ethan...

2005
Hadi A. Milane Thierry F. Vandamme Min-jie Zhao Marc Kessler Geneviève Ubeaud Beatriz Aguilar Louis Jung

Different studies have demonstrated that the bioactivity of hydroxyflavones is due to their antioxidant and free radical scavenging activity. Recently, most interest has been devoted to structure-activity relationships; however, the main problems encountered in these studies are the low solubility of some hydroxyflavones in aqueous solution and the pro-oxidant character of the hydroxyl group at...

2012
Yoshimi Sueishi Misa Ishikawa Daisuke Yoshioka Nobuyuki Endoh Shigeru Oowada Masashi Shimmei Hirotada Fujii Yashige Kotake

Recently, we proposed an oxygen radical absorbance capacity method that directly quantifies the antioxidant's scavenging capacity against free radicals and evaluated the radical scavenging abilities for water soluble antioxidant compounds. In this study, we determined the radical scavenging abilities of lipophilic antioxidants which were solubilized by cyclodextrin in water. Commonly employed f...

2012
Noriko Yamabe Kyung Il Song Woojung Lee Im-Ho Han Ji Hwan Lee Jungyeob Ham Su-Nam Kim Jeong Hill Park Ki Sung Kang

Reactive oxygen species play critical role in kidney damage. Free radical-scavenging activities of Panax ginseng are known to be increased by heat-processing. The structural change of ginsenoside and the generation of Maillard reaction products (MRPs) are closely related to the increased free radical-scavenging activities. In the present study, we have demonstrated the Maillard reaction model e...

Scrophularia umbrosa is a medicinal plant used as a traditional herb. This study was designed to investigate the phytochemical analysis of methanol (MeOH), DCM, and n-Hexane extracts of rhizome as well as total phenol and total flavonoid contents (TPC and TFC). In-vitro β-hematin formation assay and DPPH method were applied for analyzing antimalarial and free-radical scavenging activities of th...

Dorema glabrum Fisch. & C.A. Mey. (Apiaceae) is a monocarpic perennial plant distributed in southern Caucasus. In Azerbaijan Republic folk medicine, the gum-resin of this species is used as a diuretic and anti-diarrheal agent. It is also traditionally used for the treatment of bronchitis and catarrh. In the present study, chemical constituents of the essential oil and extract of D. glabrum aeri...

Journal: :iranian journal of pharmaceutical research 0
mohammad-reza delnavazi tehran university of medical sciences abbas hadjiakhoondi tehran university of medical sciences abbas delazar tabriz university of medical sciences yousef ajani now he is student of phd. degree in germany saeed tavakoli tehran university of medical sciences narguess yassa tehran univ. med. sci.

dorema glabrum fisch. & c.a. mey. (apiaceae) is a monocarpic perennial plant distributed in southern caucasus. in azerbaijan republic folk medicine, the gum-resin of this species is used as a diuretic and anti-diarrheal agent. it is also traditionally used for the treatment of bronchitis and catarrh. in the present study, chemical constituents of the essential oil and extract of d. glabrum aeri...

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