List of Articles amir arasteh

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  1 - Phytochemical evaluation and antioxidant and inhibitory effects of Citrullus colocynthis L. extract on the production of amyloid nano–biofibrils from bovine serum albumin as a model protein
  Hourieh Mansouri amir arasteh Ramazan Ali Khavari-Nejad
  20.1001.1.23223235.1399.8.4.3.9
  Colocynth with the scientific name of Citrullus colocynthis L. is one of the plants that it's anti–oxidant and anti–diabetic effects has been shown in previous research. In this study, in addition to the phytochemical study of hydro–alcoholic extract o More

  Colocynth with the scientific name of Citrullus colocynthis L. is one of the plants that it's anti–oxidant and anti–diabetic effects has been shown in previous research. In this study, in addition to the phytochemical study of hydro–alcoholic extract of Colocynth, its anti–oxidant and inhibitory effects on the production of amyloid nanobiofibrils from bovine serum albumin as a model protein have been investigated. The fruit of the plant was collected from the desert areas around Qom in the fall of 2017, dried and then extracted by maaceration method. Analysis of secondary compounds of the extract was performed by gas chromatography-mass spectrometry and the amount of its most important compounds including citrulline and citronellol was obtained by HPLC. The antioxidant activity of the extract was evaluated using DPPH method and then the amyloid fibrils were prepared in the test tube at high temperature and low pH and electron microscope imaging was used to confirm the presence of the fibrils. Congored spectroscopy was used to investigate the inhibitory effects on the production of amyloid fibrils. The results showed that methyl beta-galactopyranoside and beta-diglucopyranoside with 29.51% and 6.31% respectively, were the most abundant chemical compounds and tetradcanoic acid with 16.31% and then octa and hexadecanoic acid with respectively 14.11% and 10.94% were the most compounds found in the extract. The levels of citrulline and citronellol in the extract were 0.0041 and 0.013 mg, respectively. The highest anti–oxidant activity was in the concentration of 10 mg/ml of the extract with 71.5% and the highest inhibition of production of amyloid fibers in the concentration of 1 mg/ml and 99% were seen. Colocynth extract with the presence of potent anti–oxidant compounds and its inhibitory effects on the production of amyloid fibrils, will be very useful in preventing and reducing the incidence of Alzheimer's disease. Manuscript profile
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  2 - Phytochemical, antibacterial and anti-Alzheimer's evaluation of turmeric medicinal plant extract (Curcuma longa) by inhibiting the production of amyloid nanobiofibrils
  zahra Sayadi Ghasabeh amir arasteh
  10.30495/ejmp.2021.682559
  20.1001.1.23223235.1400.9.1.4.1
  Turmeric, scientifically known as Curcuma longa L., belongs to the zingiberaceae family. Due to the need to find new antimicrobial drugs, in this study the phytochemical evaluation, antibacterial and inhibitory effects of turmeric extract were investigated on the produc More

  Turmeric, scientifically known as Curcuma longa L., belongs to the zingiberaceae family. Due to the need to find new antimicrobial drugs, in this study the phytochemical evaluation, antibacterial and inhibitory effects of turmeric extract were investigated on the production of amyloid nanobiofibrils. Dry and abraded skin of the plant was prepared from India in autumn 2016 and then extracted by maceration method. Analysis of secondary compounds of the extract was performed by gas chromatography-mass spectrometry. The anti-microbial effect of aqueous and hydro-alcoholic extract of turmeric was investigated by the agar well diffusion method, MIC and MBC on two Escherichia coli and Staphylococcus aureus bacteria. Anti-Alzheimer's effects of Hydro-alcoholic extract on the production of amyloid fibrils were studied by spectrophotometry. The results showed that Turmerone and Zingiburn were the most abundant compounds in hydro-alcoholic extract with 21.26% and 11.65%, respectively. The diameter of the non-growth halo in the hydro-alcoholic extract was 12 for Escherichia coli and 13 mm for Staphylococcus aureus and in the case of aqueous extract, no growth halo was created. The MIC was reported in hydro-alcoholic extracts for Staphylococcus aureus and Escherichia coli at 26 and 53, respectively and in the aqueous extract for both bacteria at 123 mg/ml. MBC levels were also reported in the presence of hydro-alcoholic extracts for Staphylococcus aureus and Escherichia coli at 53 and 106, respectively and for aqueous extract for both bacteria at 247 mg/ml. Increasing the concentration of Hydro-alcoholic extract reduced the production of amyloid fibrils by up to 40 % of the initial amount and this decrease was confirmed by transmission electron microscopy. Hydro-alcoholic extract of turmeric with antimicrobial and reducing effects on the production of amyloid fibrils, can be used as one of the useful drugs to reduce the complications of Alzheimer's disease. Manuscript profile
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  3 - Phytochemical, antimicrobial, anticancer and anti-Alzheimer investigation of the hydro-alcoholic leaf extract of Eucalyptus globulus L. in laboratory conditions
  morteza Karimpour amir arasteh
  10.30495/ejmp.2023.1918213.1714
  20.1001.1.23223235.1402.11.1.5.6
  This research evaluated the phytochemical, antimicrobial, anticancer and anti-Alzheimer properties of eucalyptus leaf extract (Eucalyptus globulus L.). The fresh leaves of the plant were collected from the suburbs of Rasht in the fall 2016. Extraction was done by macera More

  This research evaluated the phytochemical, antimicrobial, anticancer and anti-Alzheimer properties of eucalyptus leaf extract (Eucalyptus globulus L.). The fresh leaves of the plant were collected from the suburbs of Rasht in the fall 2016. Extraction was done by maceration method and the composition of the extract was determined by GC-MS method. The antimicrobial effects of the extract were investigated on Staphylococcus aureus, Escherichia coli, Listeria monocytogenes, and Salmonella typhimurium by agar well diffusion method and its MIC and MBC values were determined. The anticancer effect was determined by MTT test on the colon cancer cell line, the antioxidant effect was determined by DPPH method, and the inhibitory effect of the extract on the production of amyloid nano-fibrils was determined by Congored spectroscopy. Eucalyptol and Globulol were the most abundant in the extract. The diameter of the halo of non-growth of Eucalyptus hydro-alcoholic extract in the well diffusion method on Escherichia coli, Staphylococcus aureus, Listeria monocytogenes, and Salmonella typhimurium were 12, 22, 26, and 15 mm, respectively. Also, the results of MIC and MBC in Escherichia coli and Staphylococcus aureus were 0.625 and 1.25, respectively. These results in Listeria monocytogenes were 1.25 and 2.5; also, the results of MIC and MBC in Salmonella Typhimurium were 5 and 10 mg/ml, respectively. The highest anticancer activity, antioxidant effect, and inhibition of the production of amyloid nano-fibrils were observed at 100, 10, and 0.4 mg/ml of the extract, respectively. Due to its antimicrobial, antioxidant, and anti–amyloidogenic properties, eucalyptus extract can help treat infection and reduce the growth of cancer cells and the complications of Alzheimer's disease. Manuscript profile