July 2011
Current status and potential prospects of medicinal plant sector in trans-Himalayan Ladakh
The study reveals that Ladakh is rich in vegetation, medicinal flora and endemic diversity. The traditional knowledge on native plant species highlights Amchi system of medicine and their traditional health-care system, both logistically as well as economically. The excessive extraction of medicinal plant resources for use in the pharmaceutical industry, has resulted in ruthless destruction of natural populations of...
July 2011
Effect of drying and size reduction on the chemical and volatile oil contents of ginger (Zingiber officinale)
In an attempt to improve the processing of dried ginger (Zingiber officinale), the effect of drying and size on the proximate, mineral and volatile oil contents were investigated. Fresh gingers were cleaned and divided into two halves, one part was sliced and the other grated. Each of the sliced and grated ginger was divided into two; each half was subjected to sun and oven drying at 50°C. The samples were...
July 2011
A study on the ultrasonic-assisted ethanol extraction of dioscin
In order to solve the pollution problem in the production of diosgenin. Adopting ultrasonic-assisted ethanol extraction technology to study the effects that different ultrasonic frequencies, various volume fractions of ethanol, different extraction durations and extraction times and various solid-liquid ratios have on the dioscin and its hydrolysant in the extraction liquid. What is more of a test on the melting point,...
July 2011
Phytochemical and proximate composition of Datura Innoxia leaf, seed, stem, pod and root
Phytochemical and proximate analyses of Datura innoxia leaf, seed, stem, pod and root were carried out. Phytochemical screening result revealed the presence of atropine, scopolamine, essential oils, saponins, flavonoids, phenols, as well as cardiacs glycosides; while tannins, coumarins, carboxylic acid and valepotriates were absent in all the plant parts examined. The proximate analysis indicated significant...
July 2011
Isolation and structure determination of a new oligosaccharide from Blume riparia
A water-soluble oligosaccharide (BROS) was obtained from Blume riparia DC. by hot water extraction, ethanol precipitation, and fractionated by Sephadex G-50 and Sephadex G-25 column filtration chromatography. BROS is a homogenous composition. Its molecular weight was 1.314×103 Da by MALDI-TOF-MS accurate determination. It was composed of 8 monosaccharides, namely Glcp, Frup and...
July 2011
In vitro antioxidant activity of polysaccharide from Gardenia jasminoides Ellis
A water-soluble polysaccharide, GP, was isolated from Gardenia jasminoides Ellis through hot water extraction followed by ethanol precipitation. The in vitro free radicals scavenging tests exhibited that GP has significant scavenging abilities especially for ABTS, DPPH, and hydroxyl radicals, which suggests that the polysaccharide GP is a novel antioxidant. Key...
July 2011
Evaluation of drought tolerance of γ-irradiated mutants of Hordeum vulgare
The various physio- and biochemical parameters including photosynthetic rate, stomatal conductance, transpiration rate, relative average growth, chlorophyll content, soluble sugar and proline content were investigated on mutant Hordeum vulgare obtained from first generation upon two doses of γ-rays, viz., 300 and 350 Gy, respectively. The level of stress marker “proline” was accumulated...
July 2011
Variation in essential oils to study the biodiversity in Satureja montana L.
Albania has a very diverse climate from subtropical to continental and high relief variation, has a very rich flora. The Albanian flora comprises 3250 plant species or about 30% of the European flora, with about 30 endemic and 180 subendemic species. More than 300 species are aromatic or medicinal plants, which are very important economic natural resources. Further, they play an important role in everyday life. Of all...
July 2011
Antioxidant and antihyperglycaemic effects of an aqueous extract from Momordica charantia fruit in a type II diabetic rat model
The aim of this study was to determine the antioxidant and antihyperglycaemic activities of an aqueous extract from Momordica charantia (MC) fruit in a type II diabetic rat model. In this study, diabetes mellitus was induced in one-day-old neonatal rats by a single injection of streptozotocin (STZ) (85 mg/kg). The animals were separated into four groups as follows: the normal control group (NC), the diabetic...
July 2011
Cytological study and anti-microbial activity of embryogenic callus induced from leaf cultures of Tinospora cordifolia (Willd.) Miers
The present cytological study of callus, induced from mature leaves of Tinospora cordifoliarevealed the presence of somatic embryos at different stages. Induction of embryogenic callus was observed on both MS basal medium and MS supplemented with growth regulators 2, 4-D and BAP. Semisolid as well as liquid growth regulator free medium at higher concentration of sucrose and lower strength of salts favoured...
July 2011
Lowering blood lipid and hepatoprotective activity of amentoflavone from Selaginella tamariscina in vivo
Amentoflavone (AF) isolated from Selaginella tamariscina was screened for antioxidant activities in vitro, and lowering blood lipid and hepatoprotective activity in vivo. AF had no antioxidant activity in DPPH and ABTS assay and poor reducing power in FRAP assay. Intragastric administration of AF (75 mg/kg body weight per day), ethyl acetate fraction of S. tamariscina (STEA) (150 mg/kg) and...
July 2011
The effects of tocotrienol supplementation on the muscle contractile properties, fatigue and antioxidant enzymes activities of gastrocnemius muscle of trained and untrained rats
Several studies have consistently indicated that vitamin E deficiency can lead to enhanced free radical formation resulting in compromised exercise performance and increased tissue lipid peroxidation. The aim of this study is to evaluate the muscle contractile properties and fatigue resistance of gastrocnemius muscle under Tocotrienol supplementation schemes in sedentary and exercise protocols. Rats were divided into...
July 2011
Applying silica gel column chromatography purify resveratrol from extracts of Morus alba L. Leaf
The resveratrol contained in mulberry leaves has manifold health care functions. In the experiment, resveratrol was extracted from mulberry leaf using a reflux extraction method of the organic solvent, then resveratrol was purified by silica gel column chromatography and determined by high performance liquid chromatography after mulberry leaf was extracted, filtered, and vacuum concentrated. The optimum extraction...
July 2011
Anti-inflammatory capacity of the aqueous leaf extract of Senna mimosoides on inhibition of rat oedema, platelet aggregatory activity and prostaglandin synthase activity
The effect of aqueous extract of Senna mimosoides leaves on systemic acute inflammation was evaluated in Wistar albino rats. The LD50 of the extract was found to exceed 5 g/kg as no death was recorded. In the systemic oedema of the rat paw, scalar doses of the extract significantly suppressed the development of paw oedema induced by egg albumin, this compares well with a standard anti–inflammatory...
July 2011
Effects of drying methods on the bioactive components in loquat (Eriobotrya japonica Lindl.) flowers
The contents of bioactive components such as flavonoids, phenolics, oleanolic acid (OA), ursolic acid (UA), amygdalin, chlorophylls and carotenoids in loquat (Eriobotrya japonicaLindl.) flower with different drying methods were investigated. Results showed that freeze drying can effectively keep the bioactive components, but the drying rate is slow. The microwave drying is rapid, especially at the high power, and...
July 2011
A daily variation in essential oil composition of flower of different accessions from Carthamus tinctorius L. in Sichuan province of China
Daily variations in essential oil composition of the flowers of different accessions fromCarthamus tinctorius L. in Sichuan Province of China were analyzed by gas chromatography-quadrupole mass spectrometer (GC-MS). Among 48 compounds, 13 were identified in all flowering stages of all three accessions; 17 were identified in all flowering stages of one or two accessions, and 18 were identified, in...
July 2011
Screening for antimicrobial activity of thirty-three medicinal plants used in the traditional system of medicine in Pakistan
Ninety-nine aqueous, ethanolic and n-hexane extracts of thirty three medicinal plants from twenty six families used in the unani system of medicines in Pakistan were tested against ten commonly prevalent gram negative and gram positive bacteria’s particularly the enteric pathogens and yeast using agar diffusion disc method for their antimicrobial activity. Aqueous, ethanolic and n-hexane extracts of fifteen...
July 2011
Antioxidant activity of polysaccharides extracted from Athyrium multidentatum (Doll) Ching
In this paper, total polysaccharides were respectively prepared from rhizome and aerial part of Athyrium Multidentatum (Doll) Ching. (AMC) and had their antioxidant activities investigated employing various established in vitro systems, including superoxide/hydroxyl radical scavenging activity and reducing power. Sulfate content and molecular weights of polysaccharides from rhizome (PR) and aerial...
July 2011
Sensitivity of Lactococcus garvieae isolated from rainbow trout to some Iranian medicinal herbs
Lactococcus garvieae is one of the most important bacterial pathogens that affect different farmed fish species in many countries. Some of the medicinal plants and their extracts have an antibacterial activity. In this study, antibacterial activity of ethanol extracts and essential oils of fifteen Iranian medicinal plants including, Satureja bachtiarica Bunge.,Thymus...
July 2011
Cosmeceutical value of herbal extracts as natural ingredients and novel technologies in anti-aging
Last few decades have witnessed a great demand for herbal cosmeceutical products, because these herbal and natural cosmeceutical products are safe to use and do not have any side effects. With man relearning the benefits of natural products, cosmeceutical products are increasingly being used by leading herbal manufacturers right from body lotions to face packs, from skin cleansers to fairness creams. There has been a...
July 2011
Micropropagation and detection of important triterpenes in in vitro and field grown plants of Syzygium cordatum
Syzygium cordatum (Myrtaceae), a recalcitrant tree species, commonly known as ‘umdoni‘or water berry is known for its medicinal uses. Extracts of the plant are taken as remedies for various ailments including tuberculosis. This study reports on developing a protocol for in vitro propagation of S. cordatum and the detection of important triterpenes inin vitro and field grown...
July 2011
Simultaneous determination of five fatty acids in Phellinus sp. by high-performance liquid chromatography with photodiode-array detection
Fatty acids are important nutrition and physiology component in fungus. A method has been developed to determine the five fatty acid components—palmitoleic acid (I), linoleic acid(II), oleic acid(III), hexadecanoic acid (IV) and stearic acid(V) in fungus Phellinus sp. using high-performance liquid chromatography with a photodiode-array (HPLC–PDA) ultraviolet detection system. The information about...
July 2011
Screening of Acacia modesta for haemagglutination, antibacterial, phytotoxic and insecticidal activities
Plants or their parts are used as folk medicines in many parts of the world to cure various infectious diseases such as bronchitis, urinary tract infections, diarrhea, cutaneous abscesses and parasitic diseases. The crude methanolic extract and various fractions of the aerial parts of Acacia modesta were screened for haemagglutination, antibacterial and phytotoxic insecticidal activities. The crude...
July 2011
Cytotoxic effects of crude kaffir lime (Citrus hystrix, DC.) leaf fractional extracts on leukemic cell lines
Crude extracts from the leaves of kaffir lime (Citrus hystrix, DC.) were extracted using hexane, ethanol, ethyl acetate, butanol and methanol. The fractions were investigated in vitro for their potential cytotoxic activity on HL60, K562, Molt4, U937 cell lines, and normalhuman peripheral blood mononuclear cells (PBMCs) using the MTT assay. The in vitrocytotoxicity bioassays on 4 leukemic cell lines...
July 2011
Parthenolide sensitizes HL-60 cells to aclarubicin-induced apoptosis by inhibiting NF-kappa band COX-2 activation
Inducing leukemia cell apoptosis is a major therapeutic strategy. Herein we investigate the enhancing effect of the herbal constituent parthenolide on aclarubicin-induced apoptosis of human HL-60 leukemia cells. HL-60 cells were incubated with aclarubicin in the absence or presence of different doses of parthenolide. Apoptosis was assessed by flow cytometry using annexin V-propidium iodide double staining. To...
July 2011
Physicochemical and nutritional qualities of Carica papaya seed products
Carica papaya Linn. is known for its nutritional values. The seeds are often discarded after eating the fruits. This research work was carried out to determine some in vitro qualities of its products. The oil qualities are: specific gravity (0.918 ± 0.002), refractive index (1.469 ± 0.003), free fatty acid (0.277 ± 0.006 mgKOH/g), thiobarbituric acid...
July 2011
In vivo therapeutic effects of antibacterial and antiviral antibiotics using Bombyx mori L. as an animal model
Antibiotics are among the most frequently prescribed medications in modern medicine which offer promising results for the control of bacterial and viral diseases on silkworm. With aim to observe in vivo therapeutic effect of antibiotics on silkworm infected with bacterial and viral pathogens, the 50% effective dose (ED50) values are obtained by injection of antibiotics namely ofloxacin, tetracycline,...
July 2011
Gastroprotective effects of amygdalin on experimental gastric ulcer: Role of NO and TNF-α
Natural plant origin products like amygdalin with anti-inflammatory effects are still a major part of traditional medicine. We conducted the present investigation to elucidate the amygdalin effects on alcohol-induced gastric ulcer together with the possible role of nitric oxide (NO) and tumor necrosis factor-alpha (TNF-α). Thirty-two male Wistar rats were used to study therapeutic and preventive effects of...
July 2011
A new alkaloid-aluminum glycoside isolated from Rhizoma Sparganii (Sparganium stoloniferum Buch. -Ham.)
Rhizoma Sparganii is a traditional Chinese medicine for bad stomach. A new N-heterocyclic Al complex glycoside was isolated from aqueous extractive of dried rhizome ofSparganium stoloniferum by column chromatography, and its structure was assigned by spectroscopic methods. The new alkaloid glycoside was named Grailsine-Al-glycoside, yield 5.99% (dry weight / dry rhizome weight). Grailsine-Al-glycoside is the first...
July 2011
Isolation and characterization of anthraquinone derivatives from Ceratotheca triloba (Bernh.) Hook.f.
Following a complete chemical profile of methanolic extracts of Ceratotheca triloba roots, stems, flowers and leaves, the predominant compounds were isolated, and characterized by preparative thin layer chromatography (TLC) and identified by UV, 1H NMR, 13C NMR and EI-LC-MS.Three anthraquinone derivatives; 9, 10 anthracenedione; 1-hydroxy-4-methylanthraquinone;and 5,8-dimethoxy-2, 3, 10,...
July 2011
Changes in essential oil content of dill (Anethum graveolens) organs under salinity stress
Salinity is one of the most serious environmental factors limiting crop production of marginal agricultural soils in many arid and semi-arid parts of the world. Effects of four levels of salinity (0, 4, 8 and 12 dS/m NaCl) on yield and essential oil content of dill (Anethum graveolens) organs (leaves, flowers and seeds) were investigated in 2010. A factorial experiment based on randomized complete block design with four...
July 2011
Diversity of plants used in the treatment of Helicobacter pylori associated morbidities in the Nkonkobe municipality of the Eastern Cape province of South Africa
Helicobacter pylori is a major cause of gastro-duodenal pathologies. Expenses associated with combination therapy and the adverse effects of the treatment regimens have led to increased usage of ethnomedicines in the management of infections. Despite the usage of plants in the management of infections in the Nkonkobe municipality, empirical studies to document the specific plant species used by traditional doctors...
July 2011
Effects of hydrolytic conditions on recovery of antioxidants from methanolic extracts of Nigella sativa seeds
Nigella sativa (NS) has health promoting beneficial properties including antioxidant activity. In this study, the impact of acid and alkaline hydrolysis on phenolic (TPC), flavonoid (TFC) contents and antioxidant activity of methanolic extracts from N. sativa (NS) seeds powder is evaluated. Total phenolic and flavonoid contents were evaluated according to Folin-Ciocalteu reagent and aluminium...
July 2011
The beneficial effects of aged black garlic extract on obesity and hyperlipidemia in rats fed a high-fat diet
The present study was conducted to evaluate the effectiveness of aged black garlic (ABG) extract in alleviating obesity and hyperlipidemia, and regulating antioxidant properties in rats fed high-fat diet. Six-week old male Sprague-Dawley rats were separately fed for 5 weeks with two types of diets; a normal diet (ND) or high-fat diet (HD). Then rats fed HD were randomly assigned into 5 groups and fed with one of the...
July 2011
Adjuvant effect of saponins isolated from the sepal of Physalis alkekengi L. var. francheti (Mast.) Makino fruit on the immune responses to ovalbumin in mice
Saponins (designated SP) were isolated and purified from the sepals of the mature fruit ofPhysalis alkekengi L. var. francheti (Mast.) Makino which is a traditional Chinese medicine herb. Immunologic enhancement of the SP was evaluated in this paper. Male ICR mice were immunized subcutaneously with ovalbumin (OVA) alone or with OVA containing SP in doses of 0.63, 1.25, 2.50 mg/kg body weight (BW), or QuilA in...
July 2011
Localization of ginsenoside-Rb1 in Panax ginseng revealed by immunofluorescence and immunoelectron microscopic techniques
Information on the specific location of the medicinal substance ginsenoside-Rb1 (G-Rb1) in Ginseng, Panax ginseng, is crucial to obtain the efficient extract of G-Rb1 or to culture G-Rb1 producing cells. In this paper we describe the localization of G-Rb1 in various parts of the plant revealed by immunofluorescence (IF) and immunoelectron microscopy (IEM). IF observations show that G-Rb1 is localized in...
July 2011
To study the effects of Securigera securidaca (L.) seed against alloxan-induced hyperglycemia
In the present study, the anti-hyperglycemic and antioxidant potential of the Securigerasecuridaca (L.) seed suspension in alloxan-induced hyperglycemic rats was investigated. The male Wistar rats (180 to 220 g) were divided in three groups and treated orally for 4 days as follow: group I, the control, was fed 10 ml/kg/day of distilled water, groups II and III were gavaged 2 and 4 g/kg/day of S. securidaca...
July 2011
Natural medical attributes and benefits of Spirulina: Segmentation based on consumers’ knowledge
Consumers today are more health conscious and more interested in health related products than ever before. This behaviour has led to the production of natural products such as the commercial production of microalgae. Of all the blue-green algaes, Spirulinahas received the greatest interest. Spirulina, a filamentous cyanobacterium is considered to be a wholesome...
July 2011
Towards understanding of physiological changes in cell culture of recalcitrant woody plant, Eurycoma longifolia, in response to carbon and nitrogen sources
Eurycoma longifolia possesses high medicinal and economical values owing mainly to its aphrodisiac properties claimed by the local communities in Southeast Asia regions. However, the long cultivation period, low successful rate of seed propagation and susceptibility towards pests and diseases have affected the supply of E. longifolia to meet the high market demand. Thus, the large scale production...
July 2011
In-vitro anti-Helicobacter pylori activity of acetone, ethanol and methanol extracts of the stem bark of Combretum molle (Combretaceae)
In an attempt to identify novel sources of cheap starting material for the synthesis of new anti-infective agents, the antimicrobial activity of crude acetone, ethanol and methanol extracts of the stem bark of Combretum molle were investigated against 32 clinical strains of Helicobacter pylori and a standard control strain NCTC 11638 by agar well diffusion and micro-broth dilution....
July 2011
Effects of ginsenosides on the growth and activity of antioxidant enzymes in American ginseng seedlings
American ginseng (Panax quinquefolium L.) cannot be replanted in the same soil consecutively. Inhibitory allelopathy has been reported to be one of the factors in its replant failure. Ginsenosides is the important allelochemicals of ginseng. However, the allelopathic effects of ginsenosides on American ginseng are not well known. This paper investigated the effects of ginsenosides on American ginseng seedling...
July 2011
Antimicrobial, antioxidant and toxic effects of Senna skinneri Bentham, Irwin and Barneby (Leguminoseae)
Infusions of the bark of Senna skinneri (Leguminoseae) are used by healers in Amatlán, Morelos, Mexico for the treatment of gastrointestinal, respiratory and skin diseases. The aim of this work was to investigate antimicrobial, antioxidant and toxic effects of the bark of S. skinneri (Leguminoseae), validate its use and contribute to the knowledge of medicinal flora from Amatlán...
July 2011
Artemisia annua L. (Asterasea) changes some biochemical compounds in the hemolymph of Hyphantria cunea Drury (Lepidoptera: Arctiidae)
Laboratory assays were carried out to evaluate the effect of methanolic extract of Artemisia annua L. on some biochemical compounds in the hemolymph of Hyphantria cunea Drury (Lepidoptera: Arctiidae). It was found that the activity levels of two aminotransferases and phosphatases increased after extract exposure. Activity of lactatae dehydrogenase, as an enzyme showing tissue damage, significantly...
July 2011
Influence of salt-priming on mucilage yield of Isabgol (Plantago ovata Forsk) under salinity stress
Seeds of Isabgol (Plantago ovata Forsk) were divided into three sub-samples, one of which was kept as control (unprimed), a sub-sample was soaked in 0.8% NaCl solution and another sub-sample was pretreated with 0.8% KNO3 solution for 4 h in an incubator adjusted to 15°C. In laboratory, the highest germination rate and seedling dry weight were obtained by seeds primed with KNO3. In the greenhouse, means of...
July 2011
Determination of the effective traits on essence percent and dry flower yield in German chamomile (Matricaria chamomilla L.) populations
Seeds of Isabgol (Plantago ovata Forsk) were divided into three sub-samples, one of which was kept as control (unprimed), a sub-sample was soaked in 0.8% NaCl solution and another sub-sample was pretreated with 0.8% KNO3 solution for 4 h in an incubator adjusted to 15°C. In laboratory, the highest germination rate and seedling dry weight were obtained by seeds primed with KNO3. In the greenhouse, means of...
July 2011
Antioxidant potential and anticancer activity of young ginger (Zingiber officinale Roscoe) grown under different CO2 concentration
In the present study, leaves and rhizomes extract from two Malaysian young ginger (Zingiber officinale Roscoe) varieties namely: Halia Bentong and Halia Bara grown under ambient (400 μmol/mol) and elevated (800 μmol/mol) CO2 concentrations were studied for their antioxidant and in vitro anticancer activities against two human cancer cell lines (MCF–7 and MDA–MB–231)....
July 2011
Effects of an aqueous extract of Three Ballerina on the survival of Escherichia coli AB1157 cultures and in the action of stannous chloride
The global interest in natural substances has increased. Three Ballerina (TB) is a natural formula that has medicinal properties. Scientific information about this formula is not found in the PubMed and this fact has stimulated investigations about its biological effects. An experimental model using a reducing agent, stannous chloride (SnCl2), was carried out. Although, SnCl2 is used in nuclear medicine...
July 2011
Inhibition of tumor angiogenesis by Scutellaria barbata D. Don via suppressing proliferation, migration and tube formation of endothelial cells and downregulation of the expression of VEGF-A in cancer cells
Scutellaria barbata D. Don is a medicinal herb that has long been clinically used in China to treat various types of cancer. Extracts of S. barbata D. Don have been shown to inhibit the growth of many cancer cells. Previously, we reported that S. barbata D. Don promotes cancer cell apoptosis via activation of the mitochondrion-dependent pathway. To further elucidate the precise mechanism of...
July 2011
Selection studies on high quality walnut types and their antibacterial properties
This study was conducted to determine high quality walnut types and their antimicrobial properties in the Hasankeyf District of Batman province in Turkey between 2008 and 2009. This research is very important because no studies have been performed in the districtabout walnut trees until now. At the end of the study, it was determined that average fruit weight, kernel weight and kernel...
July 2011
Croton cajucara methanolic extract reduced the DNA-damage but did not protect against the testicular alterations induced by doxorubicin
Many tests have been done to ameliorate the side effects caused by doxorubicin (DXR) chemotherapy. Croton cajucara is a plant that presents several biological beneficial properties. The aim of this study was to verify whether C. cajucara methanolic extract (EMeOH) prevents the DXR-induced testicular alterations and whether presents mutagenic or antimutagenic activities. Mice received DXR combined or...
July 2011
An evaluation of the antimicrobial activity of some Turkish mosses
The antibacterial and antifungal activities of seven different extract from the mosses Funaria hygrometrica Hedw. (Funariaceae), Hypnum cupressiforme Hedw. (Hypnaceae), H. imponens Hedw. (Hypnaceae), Polytrichum juniperinum Hedw. (Polytrichaceae) andTortella tortuosa (Hedw.) Limpr. (Pottiaceae) were tested against six bacterial and three fungal strains by agar diffusion and...
July 2011
DPPH-scavenging antioxidant potential in regenerated tissues of Stevia rebaudiana, Citrus sinensis and Saccharum officinarum
DPPH-scavenging antioxidant potential of in vitro regenerated tissues of Stevia rebaudiana,Citrus sinensis and Saccharum officinarum was carried out to evaluate and explore new potential sources for natural antioxidants. These species are used in every day life and produced valuable secondary metabolites that scavenge toxic free radicals. Toxic free radicals can cause different diseases in...
July 2011
Characterization of the volatiles and active components in ethanol extracts of fruits of Litsea cubeba (Lour.) by gas chromatography-mass spectrometry (GC-MS) and gas chromatography- olfactometry (GC-O)
Currently extracts fruits of Litsea cubeba (Lour.) (FLC) is mainly used as natural remedies, perfumery ingredients and food additives. This study reports characterization of the extracts from FLC, which widely distributes in southern China, Japan, and other parts of southeast of Asia. The ethanol extracts of FLC were analyzed by gas chromatography-mass spectrometry (GC-MS), GC-flame ionization detection...
July 2011
Pretreatment with astragaloside IV protects H9c2 cells against hydrogen peroxide-induced apoptosis by scavenging of reactive oxygen species and regulation of Bcl-2 and Bax expression
Astragaloside IV (ASI), a saponin isolated from Radix Astragali, has been found to have potent cardioprotective effects. This study was designed to investigate whether ASI prevents cardiomyocytes from hydrogen peroxide (H2O2)-induced apoptosis. H9c2 cells were pretreated with different concentrations of ASI (5, 10, 20 μg/ml) for 24 h and then exposed to 100 μM H2O2 for 24 h. The cell viability were...
July 2011
Polyhydroxyalkanoates production via Bacillus plastic composite support (PCS) biofilm and date palm syrup
Polyhydroxyalkanoates (PHAs) are a group of biopolymers resembling plastic due to their physical characteristics. PHAs are known to have great structural variety and biodegradability which add to their importance in replacing synthetic plastics and making them future green materials. Such biopolymers gained worldwide attention. Most bacteria produce biopolymers as an intracellular carbon and energy compounds. Several...
July 2011
Antioxidant, α-glucosidase inhibitory activities in vitro and alloxan-induced diabetic rats’ protective effect of Indigofera stachyodes Lindl. root
The antioxidant capacity of Indigofera stachyodes Lindl. root (ISR) extract had been determined by using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS and ferric reducing antioxidant power (FRAP) assay, and α-glucosidase inhibitory activity using 96-microplate-based method test in vitro. Extracts of EtOAC (ISREA) and n-BuOH (ISRBU) were...
July 2011
Optimization of Jatropha curcas for total flavonoids by response surface methodology and antibacterial activity
Jatropha curcas is known as a member of the Euphorbiaceae plants. In this study, using rutin in determining indicators, the extraction technology of total flavonoids was optimized by the ultrasonic assisted method with response to surface methodology from Jatropha leaves, and the antibacterial effects of total flavonoids were studied. Results of the response surface method showed that under the extraction...
July 2011
Effect of aqueous extract of Lycium barbarum on serum CK, CK-MB activities and myocardium injury in exhausted swimming rats
Studies were undertaken to evaluate the effects of aqueous extract of Lycium barbarum on serum creatine kinase (CK) and creatine kinase mass (CK-MB) activities in exhausted swimming rats. Forty Wistar rats were randomly assigned to five groups: normal control group (NC), exhausted swimming model control group (MC), low dose of LBE administration group (I), middle dose of LBE administration groups (II) and high...
Advertisement
Advertisement
