April 2010
Orchids: A review of uses in traditional medicine, its phytochemistry and pharmacology
Many of the epiphytic orchids are used as traditional medicine. Chemical components and pharmacology have been studied in recent 15 years. Medicinal orchids, in general, are not subjected to detailed pharmacological studies. A wide range of chemical compounds are presented including alkaloids, bibenzyl derivatives, flavonoids, phenanthrenes and terpenoids which have been isolated recently from this species. Extracts and...
April 2010
Antisickling and toxicological profiles of leaf and stem of Parquetina nigrescens L.
Folk medicine reportedly uses Parquetina nigrescens L. (Asclepiadaceae) as a herbal remedy for the management of sickle cell anemia. This study was carried out to screen the leaves and stem of P. nigrescens for antisickling activity, erythrocyte membrane -stabilizing effects and any end organ toxicity. Percentage Reversal and Inhibition of Sickling parameters were analyzed on pre-sickled...
April 2010
Antibacterial activity of aqueous and ethanol crude extracts of the root barks of Alstonia boonei and preliminary phytochemical test of Morinda lucida
The antibiotic activity of aqueous and ethanol extracts of the root bark of two plants Alstonia boonei De wild and Morinda lucida locally used for treating different diseases especially fever were studied against seven bacteria. Crude extracts obtained from A. boonei were not potent against any of the bacterial tested. Bacillus subtilis was the most sensitive organism to the...
April 2010
Phytochemical and antimicrobial studies of the ethyl acetate extract of Alchornea cordifolia leaf found in Abuja, Nigeria
The phytochemical screening of the ethyl acetate extract revealed the presence of tannins, flavonoids, glycosides, resins and carbohydrates. Seventy-eight fractions were elucidated from the extract using the bioassay-guided fractionation by employing the accelerated gradient chromatography (AGC) technique. All the fractions showed antimicrobial activity against the test organisms. Antimicrobial activities of the ethyl...
April 2010
Antinociceptive and antipyretic properties of the pharmaceutical herbal preparation, Radix bupleuri in rats
Chai hu is a Chinese herb growing both in northern and southern China. It has the English names hare’s ear and Chinese throwax root. Its botanical name is Bupleurum chinense D.C. The pharmaceutical preparation of the extract is called Radix bupleuri(R. Bupleuri). In this study the antinociceptive and antipyretic properties of R. bupleuriwere studied in mice. Yeast was used to induce...
April 2010
In vitro propagation of Clitoria ternatea L. : A rare medicinal plant
A rapid micro-propagation protocol was established for rare medicinal plantClitoria ternatea L. Multiple shoot formation was induced from shoot tip, node and cotyledonary node explants on Murashige and Skoog (MS) medium containing 2.0 mg/l BAP. Nodal explants gave the largest number (11.1) of shoots followed by cotyledonary node and shoot tip. MS medium containing 0.5 mg/l GA3 was found most suitable for shoot...
April 2010
Antimicrobial studies of Cosmos caudatus Kunth. (Compositae)
The present study aims to investigate crude n-hexane, diethyl ether (Et2O), ethanol (EtOH) and phosphate buffered saline (PBS) extracts of Cosmos caudatus Kunth leaves for their antimicrobial potential against 5 microbial strains comprising 2 Gram positive bacteria: Bacillus subtilis, Staphylococcus aureus, 2 Gram negative bacteria: Escherichia coli, Pseudomonas...
April 2010
In vitro anti-oxidant activity of Lespedeza cuneata methanolic extracts
In this study, the anti-oxidant activities of Lespedeza cuneata extract and fractions were evaluated by various in vitro assays, including electron donation ability (EDA) assay, reducing power, ferric thiocyanate (FTC) and thiobarbituric acid (TBA) tests. The electron donation ability of the ethylacetate fraction (95%) demonstrated stronger activity than butylated hydroxyanisole (16%). The...
April 2010
Antianaemic potentials of some plant extracts on phenyl hydrazine-induced anaemia in rabbits
The antianaemic potential of three plant extracts on phenyl hydrazine-induced anaemia in rabbits was investigated. Anaemia was induced in rabbits with phenyl hydrazine hydrochloride at a dose of 30 mg kg-1 b.wt by subcutaneous administration. Treatment of anaemia was done with ethanolic extract ofMangifera indica stem bark, aqueous leaves extract of Telfairia...
April 2010
Anti-ulcerogenic activity of Gynura procumbens leaf extract against experimentally-induced gastric lesions in rats
Several plants are used in folk medicine to treat gastrointestinal disorders.Gynura procumbens is a medicinal plant commonly used in traditional treatment of many aliments. In this study, G. procumbens ethanolic leaf extract (GPELE) was used to investigate its gastroprotective effect in adult Sprague dawley rats which were divided into six groups. The rats were orally pre-treated with...
April 2010
Vaccinium myrtillus improves liver mitochondrial oxidative phosphorylation of diabetic Goto-Kakizaki rats
Despite medicinal plants increasing use in diabetes mellitus therapy, recurrently, however, beneficial effects are mainly empirical. In this study, the effects of decoctions of Vaccinium myrtillus L. (bilberry) leaves were investigated on GK rats, a type 2 diabetes mellitus animal model. The possible toxic effects of V. myrtillus over mitochondrial respiratory activity indexes were evaluated. Our...
April 2010
Authentication of Caulis Clematidis Armandii ("Chuanmutong") and differentiation of its common adulterants using RAPD and SCAR markers
Caulis clematidis Armandii (“Chuanmutong” in Chinese) has been used as an important traditional Chinese herb for a long time. As recorded, the origins ofCaulis clematidis Armandii are the dried stems of Clematis armandii Franch.and C. montana Buch. -Ham. But due to the similarity in morphology, it is difficult to...
April 2010
Total tannin content in distinct Quercus robur L. galls
The total tannin contents of three different Quercus robur L. galls collected from Estonia, three reference galls, and two plants were estimated. The dry common oak gall-apples tannin content was 47.2%; in brown shiny galls - 4.2%, and in grape galls - 3.4%; in Chinese galls - 89.1%, in Turkey galls - 81.4%, and in pistacia galls - 52.4%; in oak bark - 9.1%, and in common tormentil roots - 21.1%. The present...
April 2010
Hepatoprotective and toxic characteristics of the whole herb of traditional Tibetan folk medicine Swertia mussotii Franch.
Swertia mussotii Franch. (SM) (Gentianaceae) was a traditional Tibetan folk herb for hepatitis in the Qinghai-Tibet plateau areas. For understanding the hepatoprotection and toxicity characteristics of Swertia mussotii Franch., the whole plant of Swertia mussotii was extracted by water (SME-b) and 75% ethanol (SME-a); then, SME-a was dissolved with water, the supernatant was SME-c, and the...
April 2010
In vitro antibacterial activities of crude extracts of Garcinia kola seeds against wound sepsis associated Staphylococcus strains
Extracts of Garcinia kola seeds were evaluated for their activity against fourStaphylococcus strains isolated from wound sepsis specimens. Three of the isolates were identified by 16S rDNA sequencing as Staphylococcus aureuswith the GenBank Accession numbers, EU244633, EU244634, EU244636, and another was identified as Staphylococcus sciuri (Accession number EU244635). The aqueous...
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