A Study on the Glucose-regulating Enzymes and Antioxidant Activities of Water Extracts from Medicinal Herbs

2008 ◽  
Vol 37 (5) ◽  
pp. 542-547 ◽  
Author(s):  
Myeon Choe ◽  
Dae-Jung Kim ◽  
Hyeon-Ju Lee ◽  
Jin-Kyoun You ◽  
Dong-Joo Seo ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Medicinal Herbs ◽  
Water Extracts

scholarly journals A Study on the glucose‐regulating Enzyme Activities of Water Extracts from Korea Medicinal Herbs of HepG2 in Hyperglycemic Conditions

2010 ◽  
Vol 24 (S1) ◽  
Author(s):  
Dae Jung Kim ◽  
Mi Ja Chung ◽  
Dong Joo Seo ◽  
Jin Kyoun You ◽  
Jong Mi Baek ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
Medicinal Herbs ◽  
Water Extracts

scholarly journals Antioxidant potential of some Sudanese medicinal plants used in traditional medicine

2015 ◽  
Vol 3 (2) ◽  
pp. 192 ◽  
Author(s):  
Hatil EL-Kamali ◽  
Sana E. M. Hamed
Keyword(s):  
Antioxidant Activity ◽  
Medicinal Plants ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Punica Granatum ◽  
In Vitro Models ◽  
Water Extracts ◽  
Total Antioxidant ◽  
Sudanese Medicinal Plants

<p>In the present work methanolic and water extracts of 19 medicinal plants, commonly used in Sudanese folk medicines against gastrointestinal tract, infectious diseases were investigated for their antioxidant activity. Antioxidant assays were carried out by using different in vitro models such as DPPH (2, 2-diphenyl-1picrylhydrazyl) radical scavenging and Iron chelating activity. Methanolic and water extracts of <em>Punica granatum </em>showed the highest total antioxidant activity of 71±0.03 and 73±0.01 respectively. The antioxidant activities of water extracts were poor when compared to the methanol extract. The iron chelating power of methanol and aqueous extracts of <em>Commiphora myrrha</em> 58±0.01 and <em>Azadirachta indica</em> 57±0.20 respectively.</p>

scholarly journals Antioxidant Activities of Hot Water Extracts from Various Spices

2011 ◽  
Vol 12 (6) ◽  
pp. 4120-4131 ◽  
Author(s):  
Il-Suk Kim ◽  
Mi-Ra Yang ◽  
Ok-Hwan Lee ◽  
Suk-Nam Kang
Keyword(s):  
Antioxidant Activities ◽  
Hot Water ◽  
Water Extracts

scholarly journals Natural Antioxidant and Anti-Inflammatory Compounds in Foodstuff or Medicinal Herbs Inducing Heme Oxygenase-1 Expression

Antioxidants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1191
Author(s):  
Dongyup Hahn ◽  
Seung Ho Shin ◽  
Jong-Sup Bae
Keyword(s):  
Heme Oxygenase ◽  
Neurological Disorders ◽  
Antioxidant Activities ◽  
Rapid Development ◽  
Medicinal Herbs ◽  
Heme Oxygenase 1 ◽  
Heme Group ◽  
Chemical Structures ◽  
Obesity Hypertension

Heme oxygenase-1 (HO-1) is an inducible antioxidant enzyme that catalyzes heme group degradation. Decreased level of HO-1 is correlated with disease progression, and HO-1 induction suppresses development of metabolic and neurological disorders. Natural compounds with antioxidant activities have emerged as a rich source of HO-1 inducers with marginal toxicity. Here we discuss the therapeutic role of HO-1 in obesity, hypertension, atherosclerosis, Parkinson’s disease and hepatic fibrosis, and present important signaling pathway components that lead to HO-1 expression. We provide an updated, comprehensive list of natural HO-1 inducers in foodstuff and medicinal herbs categorized by their chemical structures. Based on the continued research in HO-1 signaling pathways and rapid development of their natural inducers, HO-1 may serve as a preventive and therapeutic target for metabolic and neurological disorders.

scholarly journals PHYTOCHEMICAL SCREENING AND IN VITRO ANTIOXIDANT ACTIVITIES OF LEAF EXTRACTS OF ALTERNANTHERA BRASILIANA (L). KUNTZE AND ALTERNANTHERA BETTZICKIANA REGEL.

2018 ◽  
Vol 11 (6) ◽  
pp. 266
Author(s):  
Kasthuri O R ◽  
Ramesh B
Keyword(s):  
Free Radical ◽  
Secondary Metabolites ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Phytochemical Screening ◽  
Leaf Extracts ◽  
Water Extracts ◽  
Hydroethanolic Extract

Objectives: The present study was carried out to determine the phytochemical constituents and in vitro antioxidant activities of leaf extracts of Alternanthera brasiliana (L). Kuntze (A. brasiliana) and Alternanthera bettzickiana regel (A. bettzickiana).Methods: Preliminary phytochemical screening was performed in petroleum ether, chloroform, acetone, ethanol, hydroethanolic and water extracts of leaves of A. brasiliana and A. bettzickiana. The level of alkaloids, flavonoids, total phenolic content, tannins, Vitamin C, Vitamin E, GSH, and total proteins were determined in hydroethanolic, ethanol, and water extracts. Antioxidant activity of the hydroethanolic leaf extracts of A. brasiliana and A. bettzickiana were determined by 2,2-diphenyl-1-picryl-hydrazyl-hydrate free radical scavenging assay, nitric oxide scavenging assay, superoxide anion scavenging assay, ferric reducing antioxidant power assay, total antioxidant capacity, and reducing power assay.Results: The phytochemical screening of six different extracts of A. brasiliana and A. bettzickiana revealed the presence of various phytonutrients. Quantitative analysis of secondary metabolites in ethanol, hydroethanolic and water extracts of leaves of A. brasiliana and A. bettzickiana showed the presence of high amount of secondary metabolites in the hydroethanolic extract. In vitro, antioxidant assay of two plant extracts revealed that A. bettzickiana was more potent than A. brasiliana in scavenging free radicals.Conclusion: The different extracts from A. brasiliana and A. bettzickiana and specifically the hydroethanolic extract of A. bettzickiana revealed several properties such as rich source of phytonutrients, higher free radical scavenging properties, and significant antioxidant capabilities. Therefore, the bioactive compound should be isolated in future studies and could be used as a safe and serve as a potential source of natural antioxidants.

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