59 research outputs found

    Cytomegalovirus retinitis in an immunocompetent pregnant woman

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    Cytomegalovirus (CMV) is a herpes virus that causes a wide spectrum of diseases. One of the most important clinical manifestations of CMV is retinitis which occurs often in immunocompromised patients and is a serious and sight‑threatening condition. The diagnosis is made clinically based on ophthalmologic examination but in equivocal situations can be confirmed by aqueous or vitreous polymerase chain reaction (PCR) testing. Here, we report one case of CMV retinitis in a pregnant woman without any obvious immunodeficiency that started with mononucleosis like syndrome at first and followed by retinal involvement. The disease was diagnosed by ophthalmologists and confirmed by aqueous PCR. The patient was treated with ganciclovir. Our opinion is that pregnancy and its mild cellular immunity can probably be considered as a cause of CMV retinitis in this patient.Keywords: Cytomegalovirus, immunocompetency, pregnancy, retiniti

    In vitro cytotoxic effect of urtica dioica extracts on acute myelogenous leukemia cell line (kg-1)

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    Background: Urtica dioica is one of the medicinal herbs with many uses in treating various diseases. In some studies, its antiproliferative and apoptotic effects on cancer cell lines have been shown. Therefore, the evaluation of U. dioica effect was performed on KG-1 cell line for acute myelogenous leukemia (AML) for the first time in this study.Materials and Methods: KG-1 cell line was treated by various extracts (aqueous, hydroalcoholic, chloroform and ethyl acetate) of U. dioica aerial parts and roots in different concentrations. Metabolic activity of extracts on cell line was assessed by MTT assay. To evaluate the percentage of apoptotic cells, the flow cytometry was performed by FITC Annexin V-PI apoptosis detection kit in KG-1 cell line treated with root chloroform (UDC-R) and ethyl acetate (UDE-R) extracts. The results have been reported as percentage of cell viability and IC50.Results: Based on MTT results, the strongest IC50 in KG-1 cell line (219.361ÎŒg/ml) was related to UDC-R. The flow cytometric analysis showed that UDC-R and UDE-R in IC50 concentration induced early (53.6% and 57.4%, respectively) and late (27% and 33.2%, respectively) apoptosis in KG-1 cells after 24 hrs. The inhibition of cell proliferation by various extracts of U. dioica was dependent on concentration (p=0.000).Conclusion: Flow cytometric analysis confirmed that UDC-R and UDE-R extracts affect on proliferation reduction of KG-1 cells by activating the apoptotic pathway

    Armeniacae Semen Regulates Apoptosis and Cell Cycle Progression in MCF-7, MDA-MB-231, and T47D Breast Cancer Cell Lines

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    Background: Amygdalin is a glycoside ingredient of rosacea plants that exerts an antitumor effect by blocking the growth of the tumor cells. Therefore, we aimed to use the Armeniacae semen, a member of the Rosacea family, which contains a large amount of the amygdalin, to evaluate its antiproliferative effect on MCF-7, MDA-MB-231, and T47D breast cancer cell lines. Method: In this experimental study, we prepared the aqueous, ethyl acetate, and hydro-alcoholic extracts of the Armeniacae semen. The MCF-7, MDA-MB-231, and T47D cell lines were treated with different doses of the extracts for 12, 24, 36, and 48 hours; cell viability was investigated with MTT test and cell apoptosis was detected by use of double staining fluorescent. Cell cycle progression was analyzed using a BD Cycle TEST PLUS DNA Kit. We also assessed Bcl2, Bax, and caspase-3 mRNA expression. Results: The best IC50s belonged to hydro-alcoholic extract of the Armeniacae semen in all three cell lines for the 48-hour treatment. We observed a significant increase in Bax and caspase-3 mRNA expression and a noticeable reduction in Bcl2 mRNA compared with the controls. Application of amygdalin to MCF-7, MDA-MB-231, and T47D cell lines increased the number of G0/G1 cells and reduced the number of cells at G2/M phasecompared to the controls. Conclusion: This study showed that the hydro-alcoholic extract of Prunus armeniaca had antitumor effects on breast cancer cell lines as it inhibited the cell cycle at G0/G1 phase and apoptosis induction in the MCF-7, MDA-MB-231, and T47D cell lines

    Effect of Roasting on Fatty Acid Profile of Brown and Yellow Varieties of Flaxseed (Linum usitatissimum L)

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    Purpose: To monitor changes in fatty acid profiles of brown and yellow varieties of flaxseeds in the raw and roasted states using gas chromatography (GC).Methods: Samples of flaxseeds were extracted with n-hexane in a Soxhlet apparatus for 8 h. Methylesterification of the samples was performed by methanolic boron trifluoride (BF3-MeOH) method according to American Oil Chemists' Society (AOCS). Fatty acid (FA), analyzed using GC equipped with a split/splitless capillary injector and flame ionization detector (FID).Results: The results indicate that lipid content varied with the type of seed. Seed oil content was 53.31 ± 0.30 and 45.20 ± 0.20 % for roasted and unroasted brown flax, respectively, and 10.25 ± 0.04 % for the yellow type. The yellow and roasted brown type, at 300oC, showed the lowest and highest oil content, respectively. The highest calculated oxidizability (COX) value was found for the unroasted brown type (13.19 ± 0.01 %) whilst the lowest amount was observed for the roasted brown seed at 350oC (12.79 ± 0.01 %). COX value for yellow type was 5.62 ± 0.01 %.Conclusion: This study shows that the fatty acids content of flaxseeds vary with roasting conditions. This is significant because flax seed fatty acid composition influences the applications of the oil.Keywords: Oil, Flaxseed, Roasting, Fatty acid, Linum usitatissimum, Calculated oxidizability valu

    Five Pistacia

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    Pistacia, a genus of flowering plants from the family Anacardiaceae, contains about twenty species, among them five are more popular including P. vera, P. atlantica, P. terebinthus, P. khinjuk, and P. lentiscus. Different parts of these species have been used in traditional medicine for various purposes like tonic, aphrodisiac, antiseptic, antihypertensive and management of dental, gastrointestinal, liver, urinary tract, and respiratory tract disorders. Scientific findings also revealed the wide pharmacological activities from various parts of these species, such as antioxidant, antimicrobial, antiviral, anticholinesterase, anti-inflammatory, antinociceptive, antidiabetic, antitumor, antihyperlipidemic, antiatherosclerotic, and hepatoprotective activities and also their beneficial effects in gastrointestinal disorders. Various types of phytochemical constituents like terpenoids, phenolic compounds, fatty acids, and sterols have also been isolated and identified from different parts of Pistacia species. The present review summarizes comprehensive information concerning ethnomedicinal uses, phytochemistry, and pharmacological activities of the five mentioned Pistacia species

    Comparative Study on Gender Selection: Persian Medicine and Modern Medicine

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    Gender selection has emerged as a controversial issue in different countries and in this respect, a wide range of studies and international symposiums have been dedicated to this subject. A comprehensive literature review was performed without restriction on publication date as well as credible Persian Medicine (PM) resources such as "Exir-e-Azam" (The Great Elixir), "Qarabadin-e-Kabir" (Great Pharmacopoeia), and "al-QānĆ«n fÄ«l-tibb” (The Canon of Medicine) were completely studied. It was found that both nutritional factors such as glucose and electrolytes and non-nutritional factors including female tract, sperm, age, the timing of sexual intercourse, maternal body mass, stress, pH, estrogen, temperature, and testosterone can be used as important indicators in the gender selection. Most recommendations provided by PM for gender selection were found to be in good agreement with those reported by modern medicine

    Determination of 8 Synthetic Food Dyes by Solid Phase Extraction and Reversed-Phase High Performance Liquid Chromatography

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    Purpose: To develop a simple, selective, and sensitive extraction and assay method for the analysis of eight food dyes.Methods: All sulphonated colors were extracted by an NH2-aminopropyl-modified silica SPE cartridge, and thereafter determined by reverse phase high performance liquid chromatography (RP-HPLC) using a C18 column with gradient elution of ammonium acetate buffer (pH 6.7), methanol, and acetonitrile. The analysis was carried out on a UV detector with two optimized method settings within 17 min.Results: Certificated standard material (CRM) was used to validate the method, and significant difference was not observed between the results and assigned values. Maximum LOD was 1.154 ppm at 250 nm for Brilliant blue, and 0.873 ppm for carmoisine. Recovery was 94.2 % for Brilliant blue in jelly powder.Conclusion: This method was successfully applied to determine colorants in various (30) water-soluble foods, including fruit flavored drinks, sugar confectionery, sweets, etc.Keywords: Synthetic colors, Food, Fruit flavored drinks, Solid phase extraction, RP-HPL

    Cytotoxic Activity of Juniperus excelsa M. Bieb. Leaves Essential Oil in Breast Cancer Cell Lines

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    Background and objectives: Juniperus excelsa is a flowering plant that has been applied as traditional medicine for treatment of various disorders such as dysmenorrhea, bronchitis and colds, jaundice and tuberculosis. The aims of the present study were analyzing J. excelsa essential oil and investigation of its cytotoxic activity on three breast cancer cell lines.  Methods:  Juniperus excelsa leaves were collected from Dena mountains, located in the south-west of Iran. The composition of the essential oil was analyzed by gas chromatography-mass spectrometry (GC/MS). Cytotoxic activity was evaluated using MTT assay.   Results: Forty-one components, related to 99.83% of the total oil, were identified. Monoterpene hydrocarbons represented the major components of the volatile oil while α-pinene (73.27%) was the major component. The essential oil showed significant cytotoxic activity against breast cancer cell lines MCF-7 (IC50=0.084 ”g/mL), MDA-MB-231 (IC50=0.090 ”g/mL) and T-47D (IC50=0.124 ”g/mL).  Conclusion: The analysis of J. excelsa oil revealed α-pinene and cedrol as the main compounds of the volatile oil that could justifiy its remarkable cytotoxic effect against the tested cell lines

    Biotransformation of Monoterpenoids by Suspension Cultures of Lavandula angustifolia

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    Abstract Callus and suspension cultures of Lavandula angustifolia Mill. (Lamiaceae) were established and the effect of different culture media on growth rate was investigated. Terpenoids added to suspension culture to investigate their biotransformation. All samples were analyzed by gas chromatography (GC) and GC-mass spectroscopy (MS). Octan-1-ol, citronellol, linalool, borneol and geraniol were biotransformed products of octanal, citronellal, linalyl acetate, bornyl acetate and geranyl acetate, respectively. Citronellol, linalool, borneol, and menthol didn't change by L. angustifolia suspension cultures. Blue pigment production by cultures of L. angustifolia was also studied. Ester hydrolysis and oxidation were the main reactions which occurred in biotransformation process, which may be attributed to the presence of related or bifunctional enzymes. This technique is a possible way of the production of expensive or rare compounds from cheap and plentiful substrates
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