Essential oils extracted from flower petals of palmarosa (Cymbopogon martini), evening primrose (Primula rosea), lavender (Lavandula angustifolia) and tuberose (Polianthus tuberosa) were tested for their antibacterial activities against gram-positive and gram-negative bacteria. Different concentrations of each essential oil ranging from 10-100% were tested. Both gram-positive and gram-negative ...

OBJECTIVES Monoterpenes can positively or negatively affect human health depending on their concentrations. To assess the atmospheric risk for greenhouse workers, monoterpene concentrations and personal exposure in herb-growing greenhouses were measured. METHODS Monoterpene concentrations in a commercial greenhouse, where rosemary (Rosmarinus officinalis L.) and lavender (Lavandula angustifol...

The purpose of this research work was to evaluate the Aloe vera (Aloe barbadensis) and Yeast (Saccharomyces Cerevisiae)powder. A total of 72 (Arbor-Acres) day old chicks were used in this study. Four levels of anAloe vera and Yeast powder at the rate of 0.00%, 0.50% (Yeast), 0.50% (Aloe vera), and 0.50% Yeast + 0.50% Aloe vera were incorporated into the basal diet for six weeks. Feeding period ...

The insecticidal effects of 20 essential oils derived from herbs, were tested against the housefly species Musca domestica L. using a susceptibility test. Each was applied in ethyl alcohol at concentrations of 1, 5 and 10% (v/v). Ten percent concentrations of Cymbopogon citratus (lemongrass), Mentha piperita (peppermint) and Lavandula angustifolia (lavender) oils were the most effective, showin...

1. Najean Y, Rain JD, Billotey C. Epidemiological data in polycythaemia vera: a study of 842 cases. Hematol Cell Ther 1998; 40:159-65. 2. Fernandez-Luna JL, Silva M, Richard C, Sanz C, Benito A. Pathogenesis of polycythemia vera. Haematologica 1998; 83:150-8. 3. Barosi G. Pathogenesis of polycythemia vera: do we have the right pieces to the puzzle? Haematologica 1998; 83:97-8. 4. Barbui T, Fina...

The polysaccharide and flavonoid concentrations of two-, three-, and four-year-old Aloe vera were determined, and their antioxidant activities were evaluated compared to BHT and alpha-tocopherol by the DPPH radical scavenging method and the linoleic acid system at 100 microg of soluble solids per mL of ethanol. The results showed that three-year-old Aloe vera contained significantly higher leve...

Objective: Sulphur mustard (SM), chemically 2,2'-dichloro diethyl sulphide, is an incapacitating and extremely toxic chemical warfare agent, and causes serious blisters on contact with human skin. SM forms sulphonium ion in the body that alkylates DNA and several other macromolecules, and induces oxidative stress. The aim of this study was to evaluate the protective effect of Aloe vera L. gel a...

We analyzed the effect of hydroxyurea on the JAK2V617F allelic ratio (%JAK2V617F), measured in purified blood granulocytes, of patients with polycythemia vera and essential thrombocythemia. Thirty-six patients were examined sequentially prior to and after start of hydroxy-urea therapy (8 polycythemia vera, 17 essential thrombocythemia), or while remaining untreated (2 polycythemia vera, 9 essen...