SpringerIranian Journal of Science2731-809533420091212HYPOLIPIDAEMIC EFFECT OF ACANTHOPHORA SPICIFERA (RED ALGA) AND CYSTOSEIRA TRINODE (BROWN ALGA) ON ALBINO RATS287297222510.22099/ijsts.2009.2225ENM. HETTAPharmacognosy Department, Faculty of Pharmacy, Beni Suef Univ., EgyptS. HASSANBotany Department, Faculty of Science, Beni Suef Univ., EgyptS. ABDEL-TAWABZoology Department, Faculty of Science, Beni Suef Univ., EgyptM. BASTAWYChemistry Department, Faculty of Science, Beni Suef Univ., EgyptB. MAHMOUDBiochemistry Department, Faculty of Science, Beni Suef Univ., EgyptJournal Article20090819The polysaccharides of Acanthophora spicifera and Cystoseira trinode were isolated and their<br />components identified using different chemical and spectral techniques. Their effects were evaluated for the<br />first time on hyperlipidemic rats. Atorvastatin Ca (Lipitor®) was used as a reference drug. Results revealed<br />that the polysaccharides isolated were of sulfate type. Acanthophora spicifera lowered the level of total serum<br />lipids, total cholesterol (TC), triglycerides (TG) and low-density lipoproteins (LDL-C) by 48%, 49.6%, 63%<br />and 80.6% respectively. High-density lipoproteins (HDL-C) level was elevated by 1.14 fold. For Cystoseira<br />trinode total lipids, TC, TG and LDL-C were decreased by 25.5%, 49%, 51% and 91% respectively. The level<br />of HDL-C was elevated by 1.5 fold in comparison with the hyperlipidemic rats. The histopathological results<br />proved the ameliorated effect after using the isolated polysaccharides of both algae. Alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) activities were decreased in hypercholesterolemic groups by values of 63%, 34% and 45%, respectively when treated with A. spicifera extract. The treatment with C. trinode extract and Atorvastatin exhibited a noticeable amelioration in activity with hypercholesterolemic groups as compared to their corresponding controls.https://ijsts.shirazu.ac.ir/article_2225_3bd0acf918ac02c1c7b8fb0eb15db6e8.pdfSpringerIranian Journal of Science2731-809533420091212UREASE ACTIVITY IN MAIZE (ZEA MAIZE L. CV. 704) AS AFFECTED BY NICKEL AND NITROGEN SOURCES299307222610.22099/ijsts.2009.2226ENM. N. GHEIBISoil and Water Research Institute, Karaj, I. R. of IranB. KHOLDEBARINBiology Department, Shiraz University, Shiraz, I. R. of IranF. GHANATIBiology Department, Faculty of Sciences, Tarbiat Modares University, Tehran, I. R. of IranS. TEIMOURINuclear Research Center of Agriculture and Medicine, Karaj, I. R. of IranN. NIROOMANDSoil and Water Research Institute, Karaj, I. R. of IranM. SAMAVATINuclear Research Center of Agriculture and Medicine, Karaj, I. R. of IranJournal Article20080514Nickel (Ni) is one of the essential micronutrients for higher plants and its known function is being<br />the metal component of urease. The effects of various Ni levels on urease activity in maize (Zea maize L.)<br />plants grown in two nutrient media containing urea or ammonium nitrate as two separate nitrogen sources<br />were investigated. The experiments were performed as completely randomized blocks with three replications.<br />Treatments included two growth media, the nitrogen of which was either urea or ammonium nitrate added at<br />the rate of 84 mg L-1 and four Ni levels (0, 0.01, 0.05 and 0.1 mg L-1) supplied as NiSO4. Plants were grown<br />in the nutrient solutions for six weeks. On the second, fourth and sixth week of the growth period, both the<br />leaves and root samples were taken to determine their urease activities. At the end of the sixth week, the dry<br />weights of both the shoots and roots were also measured. Urease activity in leaves of corn supplied with urea<br />increased significantly with the increase in Ni supply till the end of the 6th week sampling date, however in<br />those supplied with ammonium nitrate, urease activity increased up to the 3rd Ni level and 4th week of<br />sampling date, but was reduced at the 4th Ni level in the 6th week. Urease activity in the roots of corn plants<br />supplied with urea was the highest at the 2nd Ni level at the end of the 2nd week. Increase in Ni levels and date of sampling resulted in a decrease in urease activity. However, in ammonium nitrate-fed plants urease activity in the 2nd week of the sampling date increased up to the 4th Ni level and for other sampling dates the activity increased up to 2nd Ni level. Further increase in Ni supply and date of sampling resulted in a decrease in urease activity. Enzyme activity was higher in the roots than in the shoots and was also higher in plants supplied with urea, compared to those fed on ammonium nitrate. In maize plants supplied with urea, the dry weights of the shoots and those of the roots were also higher.https://ijsts.shirazu.ac.ir/article_2226_8d3b57a4b6f6c2b3fa00de2cc27d03b4.pdfSpringerIranian Journal of Science2731-809533420091212STUDY OF PHENOLIC CONSTITUENTS OF TRITICUM L. (POACEAE) SPECIES IN IRAN309315222710.22099/ijsts.2009.2227ENN. KHARAZIANDepartment of Botany, Faculty of Sciences, University of Shahrekord,
P. O. Box: 115, Shahrekord, I. R. of IranM. R. RAHIMINEJADDepartment of Botany, Faculty of Sciences, University of Isfahan, Isfahan, I. R. of IranJournal Article20090929This recent study documents the phenolic constituents of the Triticum L. species in Iran using thin<br />layer chromatography. Species studied are related to 55 wild and cultivated accessions of four diploid and<br />four tetraploid species, namely Triticum boeoticum subsp. boeoticum Boiss., T. boeoticum subsp. thaoudar<br />Reut. ex Boiss., T. monococcum L., T. urartu Tum. ex Gand., T. turgidum L., T. dicoccoides (Korn. ex<br />Ascher. et Graebn.) Thell., T. dicoccum (Schrank.) Schubl. and T. durum Desf. collected from natural habitats<br />and analyzed for their flavonoid compounds. The current study found that of a total of 20 flavonoid<br />compounds, most of the derivatives were flavones, chalcones, and the others were mainly pseudobaptisin,<br />sciadopitysin, baptigenin and fustin-3-O-glucoside. The basis of variation in these compounds was shown to<br />be usable as an appropriate marker for chemotaxonomic studies.https://ijsts.shirazu.ac.ir/article_2227_85f21c19c1d543183dacd82412c10f21.pdfSpringerIranian Journal of Science2731-809533420091212A CALORIMETRIC STUDY ON THE INTERACTION OF ZINC ION WITH HUMAN GROWTH HORMONE317327222810.22099/ijsts.2009.2228ENE. TAZIKEHDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, I. R. of IranA. A SABOURYInstitute of Biochemistry and Biophysics, University of Tehran, Tehran, I. R. of IranG. REZAEI-BEHBEHANIDepartment of Chemistry, Imam Khomeini International University, Qazvin, I. R. of IranA. A. MOOSAVI-MOVAHEDIInstitute of Biochemistry and Biophysics, University of Tehran, Tehran, I. R. of IranM. MONAJJEMI1Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, I. R. of IranJournal Article20090829A thermodynamic study on the interaction between zinc ion (Zn2+) and human growth hormone<br />(hGH) was studied at two temperatures of 27C and 37C in aqueous solution using an isothermal titration<br />calorimetry. It was found that there is a set of three identical and non-interacting binding sites for Zn2+ ions. The intrinsic dissociation equilibrium constant and the molar enthalpy of binding are 1.54 mM and 17.6 kJ mol-1 at 27C and 1.93 mM and 7.1 kJ mol-1 at 37C, respectively. To reproduce the binding parameters of metal ionhormone interaction over the whole range of Zn2+ concentrations a solvation theory was applied. The binding parameters deduced from the solvation model were attributed to the structural change of hGH and its biological activity due to the metal ion interactionhttps://ijsts.shirazu.ac.ir/article_2228_76b08198b899c4ab1996d318d2984f81.pdfSpringerIranian Journal of Science2731-809533420091212SCREENING OF SELECTED PLANTS GROWING IN IRAN FOR ANTIMICROBIAL ACTIVITY32933222910.22099/ijsts.2009.2229ENK. JAVIDNIAMedicinal & Natural Product Chemistry Research Centre, Shiraz University of
Medical Sciences, Shiraz, I. R. of Iran
2Department of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I. R. of IranR. MIRIDepartment of Medicinal Chemistry, Faculty of Pharmacy, Shiraz University of
Medical Sciences, Shiraz, I. R. of IranM. ASSADOLLAHIMedicinal & Natural Product Chemistry Research Centre, Shiraz University of
Medical Sciences, Shiraz, I. R. of IranM. GHOLAMIMedicinal & Natural Product Chemistry Research Centre, Shiraz University of
Medical Sciences, Shiraz, I. R. of IranM. GHADERIMedicinal & Natural Product Chemistry Research Center, Shiraz University of
Medical Sciences, Shiraz, I. R. of IranJournal Article20090418The antimicrobial activity of methanolic extracts from different parts of 11 indigenous wild plant<br />species used in traditional medicines of Iran were tested against nine species of microorganisms: Escherichia<br />coli, Staphylococcus aureus, Staphylococcus epidermis, Pseudomonas aeruginosa, Klebsiella pneumoniae,<br />Salmonella typhi, Bacillus subtilis, Aspergillus niger and Candida albicans. The antimicrobial efficacy was<br />determined using the disk diffusion (0.5, 1, 2 and 4 mg/disk) and minimal inhibition concentration (MIC)<br />method. Among the 11 tested herbs, 9 plants showed antimicrobial activity against one or more species of<br />microorganism. The most active antimicrobial plants were Stachys obtusicrena, Anvillea garcinii, Salvia<br />species, Otostegia persica and Teucrium persicum.https://ijsts.shirazu.ac.ir/article_2229_548f38f0f65a42d3409df3a6d154afd9.pdfSpringerIranian Journal of Science2731-809533420091212SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER336347223010.22099/ijsts.2009.2230ENR. SHABANIDepartment of Chemistry, Islamic Azad University, Science and Research Branch,
P.O. Box: 145-775, Tehran, I. R. of IranS. A. MOZAFFARIAdvanced Institute of Technology, Iranian Research Organization for Science and
Technology (IROST), P.O. Box: 15815-3538, Tehran, I. R. of IranS. W. HUSAINDepartment of Chemistry, Islamic Azad University, Science and Research Branch,
P.O. Box: 145-775, Tehran, I. R. of IranM. SABER TEHRANIDepartment of Chemistry, Islamic Azad University, Science and Research Branch,
P.O. Box: 145-775, Tehran, I. R. of IranJournal Article20100830Fabrication of a cysteamine (CA) self-assembled monolayer (SAM) modified gold electrode insitu<br />functionalized with L-Lysine (Lys) is presented and described. The fabricated electrode was used for<br />highly selective and sensitive accumulation and the determination of copper ions (Cu2+) in a nanomolar<br />concentration. Techniques like cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)<br />with an external redox probe (p-Benzoquinone) were used to investigate the layer-by-layer self assembly<br />modification on a gold electrode, monolayer structure and the ion permeation through it. The differential<br />pulse voltammetric (DPV) method was used for determination of Cu2+. The results indicated that DPV peaks<br />currents have a linear relationship with pCu in the concentration range of 1.0×10-12 - 1×10-6 M, with a<br />correlation coefficient of 0.9982. The detection limit could be estimated 1.2×10-13 M according to the IUPAC<br />recommendation (3σ).https://ijsts.shirazu.ac.ir/article_2230_fa82a46fe73aa7733fdf060ffe1efc80.pdfSpringerIranian Journal of Science2731-809533420091212FIRST KARYOLOGICAL ANALYSIS OF AN ENDEMIC FISH, ZAGROS TOOTH-CARP, APHANIUS VLADYKOVI COAD, 1988 (ACTINOPTERYGII: CYPRINODONTIDAE) FROM IRAN349354223110.22099/ijsts.2009.2231ENH. R. ESMAEILIDepartment of Biology, College of Sciences, Shiraz University, Shiraz, 71454, I. R. of IranM. EBRAHIMIDepartment of Biology, College of Sciences, Shiraz University, Shiraz, 71454, I. R. of IranA. TEIMORIDepartment of Biology, College of Sciences, Shiraz University, Shiraz, 71454, I. R. of IranT. HOJAT ANSARIDepartment of Biology, College of Sciences, Shiraz University, Shiraz, 71454, I. R. of IranJournal Article20080929The karyotype of Zagros tooth-carp, Aphanius vladykovi (Coad) has been investigated by<br />examining metaphase chromosomes spreads obtained from gill epithelial and kidney cells. The diploid<br />chromosome number of this species was 2n=48. The karyotype consisted of 8 submetacentric and 40<br />subtelocentric chromosomes (8Sm+40 St). The arm number (NF) was 28. Sex chromosomes were<br />cytologically indistinguishable in this tooth-carp.https://ijsts.shirazu.ac.ir/article_2231_88889f49f84b7ac6db8fe475bfe42dd4.pdfSpringerIranian Journal of Science2731-809533420091212ADDITIONS TO THE ODONATA FAUNA OF IRAN355359223210.22099/ijsts.2009.2232ENS. SADEGHIDepartment of Biology, College of Sciences, Shiraz University, Shiraz, I. R. of IranJ. MOHAMMADALIZADEHNatural History Museum, BouAli Sina University, Hamedan I. R. of IranJournal Article20040528Forty eight species of Odonata families, including Libellulidae (23 species), Aeschnidae (7<br />species), Gomphidae (5 species), Cordulegastridae (1 species) from suborder Anisoptera and Euphaeidae (1<br />species), Calopterygidae (1 species), Lestidae (3 species), Platycnemididae (1 species) and Coenagrionidae (6<br />species) from suborder Zygoptera were collected from 46 sampling sites in Iran between early May 2001 to<br />mid June 2002. Two species of Libellulidae (Libellula fulva and Sympetrum sinaiticum), and one species of<br />Gomphidae, (Paragomphus sinaiticus) are recorded from Iran for the first time.https://ijsts.shirazu.ac.ir/article_2232_7005cd63f6db04a488db5b6d52b5b0bb.pdf