October 2010
Haemostatic effect of methanolic leaf extract of Ageratum conyzoides in albino rats
Scientific reports on the haemostatic effects of Ageratum conyzoides, Asteraceae in experimental animals are relatively scanty. But their uses in wound care in many indigenous tribes around the world have been widely reported. This experiment was therefore designed to scientifically test the possible haemostatic effect of methanolic leaf extract of A. conyzoides using albino rat as a model. Twenty...
October 2010
Impact of human pressure on the population structure of Persicaria amplexicaule, Valeriana jatamansi and Viola serpens the naturally growing medicinal plants in Malam Jaba, Swat, Pakistan
A study on the population structure of Persicaria amplexicaule, Valeriana jatamansi and Viola serpens was conducted during 2002 – 2004 in different ecologically important sites of Malam Jabba, Swat, Pakistan. The results revealed that overall population density of each plant showed a significant decrease after the collection period. However, all the investigated parameters generally showed...
October 2010
Antioxidant activity and concentration of phenols and flavonoids in the whole plant and plant parts of Teucrium chamaerdys L. var. glanduliferum Haussk
This paper deals with antioxidant activity of phenol and flavonoid contents in twenty different extracts obtained from the whole plant and plant parts of Teucriumchamaedrys L. var. glanduliferum Haussk. Antioxidant activity was determined in vitro using 2,2-diphenyl-1-picrylhydrazyl (DPPH) reagent and expressed as IC50values ranged from 1165.75 to 24.51 µg/ml. Total phenols...
October 2010
Phytochemical screening and antibacterial activity of Parinari curatellifolia stem extract
Microorganisms are increasingly developing resistance against commonly used antimicrobial agents, and the use of herbs in the treatment of diseases is becoming widely accepted. The aqueous and organic solvent extract of the stem of Parinari curatelifolia were screened for phytochemical and antibacterial activity by hole in plate bioassay procedure. The bacterial activity of aqueous extract of this plant...
October 2010
Information value of the infectious diseases outbreak on biotechnology
Statutory infectious diseases breakout not only affects people's health and lives, but also stagnates the economic growth. However, in order to prevent or strain infectious diseases, the prevalence of infectious diseases also provides the development opportunities of biotechnology corporations. The impact of substantial diseases to stock prices had been investigated in previous literature. The effect of the...
October 2010
Evaluating biological activities of the seed extracts from Tagetes minuta L. found in Northern Pakistan
Wild marigold (Tagetes minuta L.) is grown over a wider range of climatic conditions starting from 3000 to 11000 feet of altitude in the north and Northwestern parts of Pakistan. The plant yield strongly aromatic essential oils and other compounds, reported to be of great medicinal importance. The information regarding biological and biochemical activities of the compounds present in Tagetes grown in...
October 2010
Lipid-Lowering mechanisms of grape seed extract (Vitis vinifera L) and its antihyperlidemic activity
Grape seed extract (GSE) has been targeted to promote beneficial health effects, especially the prevention of obesity and hyperlipidemia. In present study, we investigated the mechanisms of GSE on inhibition of lipid digestion and absorption. GSE significantly inhibited pancreatic lipase and cholesterol esterase in dose-dependent manner with the IC50 values of 3.71 ± 0.03 and 27.27 ± 4.12 mg/mL,...
October 2010
Medicinal plants used for contraception and pregnancy-related cases in Malawi: A case study of Mulanje District
Malawi’s maternal mortality rate is one of the worst. Due to shortfalls in modern hospitals, women resort to medicinal plants. The study investigated medicinal plants used as contraceptives, for treating pregnancy-related cases and general illnesses. Focus group discussions, key informants, participant observations and questionnaire interviews were employed. Data were analysed through statistical package for...
October 2010
Chemical component studies on the leaf and inflorescence essential oil of Hyptis brevipes (Poit.)
Hyptis brevipes Poit. leaf and inflorescence essential oils obtained by hydrodistillation, were analyzed by gas chromatography mass spectroscopy (GC-MS). Fifty seven components were identified in the leaf oil. The major componentsgermacrene D (13.54%), caryophyllene (12.31%), phthalamide doxime (9.47%) and caryophyllene oxide (8.57%). Thirty seven components were identified in inflorescence oil with the main...
October 2010
Mutation preventive and antigenotoxic potential of methanol extracts of two natural lichen
We aimed to determine the mutagenic, antimutagenic and antigenotoxic effects ofRhizoplaca chrysoleuca and Rhizoplaca melanophthalma's methanol extracts on the known mutagens against two different organisms using Mitotic Index (MI) and Ames-Salmonella assay systems. For the MI assay the genotoxic dose of NaN3was defined on Zea mays seeds and different dose of the lichen extract used as...
October 2010
Immunosuppressive properties of aqueous extract of Plumbago zeylanica in Balb/c mice
In our investigation, we have screened herbal drug, which consists of a mixture of seven plants, used by the tribal population (in Paderu agency area of Visakhapatnam district of Andhra Pradesh state in India), for the identification of potential immunosuppressive property by testing the aqueous extracts of the plant parts by inducing ovalbumin (OVA) specific IgG antibody responses in a murine system. The aqueous root...
October 2010
Inventory of some exotic cultivated tree species of Doon valley and their ethnobotanical uses
Indigenous flora of Doon valley in Northwest Himalaya in the Indian subcontinent, have been subjected to dramatic alteration due to the deliberate and incidental introduction of exotic species from various parts of the world. Human depend heavily on non-native species for food, fodder, timber, medicine etc. Thus, the present communication deals on some cultivated exotic tree species of Doon valley with their origin and...
October 2010
An ethnobotanical investigation of the Annonaceae on Mount Cameroon
An ethnobotanical survey was carried out in the Mount Cameroon area, Southwest region of Cameroon to determine the uses of the different species of the Annonaceae. Ethnobotanical information was collected through the show-and-tell/semi-structured method and personal interviews during field trips. Eight villages were surveyed in the study: Njonji, Bakingili, Bomana, Mapanja, Likombe, Bwassa, Liwenni and...
October 2010
Growth and production potential of five medicinal crops in highlands of Balochistan, Pakistan
Growth and production of five medicinal crops (Foeniculum vulgare Mill, Linum usitatissimum L., Nigella sativa L., Anethum sowa Benth and Hook and Carum copticum Benth and Hook) were evaluated at Quetta and Kalat in Balochistan during 2005. The seeds of these crops were obtained from the Arid Zone Research Center, Quetta. Various growth (plant height, branches per plant) and...
October 2010
Determination of in vitro antioxidant activities of different extracts of Marrubium parviflorum Fish et Mey. and and Lamium amplexicaule L. from South east of Turkey
This study was designed to determine the in vitro antioxidant activities of methanol and hexane extracts of Marrubium parviflorum Fish et Mey. and Lamium amplexicaule L. from Lamiaceae and their total phenolics, flavonoids, flavonols and phenolic acid content. The extracts were screened for their possible antioxidant potentials by β-carotene/linoleic...
October 2010
Biological characteristics of pollens in some genotypes of Rosa canina as main factors affecting fruit set
Rosa canina is a medicinal plant that its fruits have many important medicinal properties but unknown for many people's especially in Iran. However, this crop can be produced commercially and its orchards can be established such as other fruit trees. This research was carried out for studing pollen germination and tube growth as main factors affecting fruit set, in some Hashtroud and Maragheh indigenous...
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