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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Nanomedicine Journal
- نوع مقاله: Journal Article
- کلمات کلیدی: Curcumin,Cytotoxicity,Combination therapy,Liposome,Mitomycin
- چکیده:
- چکیده انگلیسی: Objective (s): This study aimed at investigation of preparation and stability study of Mitomycin and Mitomycin loaded nanoliposems and efficacy of the combination of Mitomycin -loaded nanoliposomes and Curcumin versus Mitomycin in suppressing HTB-9 and L929 cell lines, in vitro.
Materials and Methods: An HPLC method was validated based on Q2 (R1) International Conference on Harmonization (ICH) guideline for determination of Mitomycin in pharmaceutical samples. Soybean phosphatidylcholine (SPC) or hydrogenated soybean phosphatidylcholine (HSPC) mixed with cholesterol at 2:1 molar ratio respectively in two different groups to prepare Mitomycin nanoliposomes. Cell toxicity of free Mitomycin, Mitomycin loaded liposomes and curcumin was measured using MTT assay in bladder cancer cell line for treatment group and Fibroblast-like cell as control group. Also, propidium iodide staining was done to determine the level of DNA fragmentation.
Results: The validated HPLC method showed stability based on the ICH guideline (n=3 and RSD<2%). Encapsulation efficiency values were 78 and 63 % for SPC and HSPC liposomes, respectively. Sizes of SPC and HSPC liposomes were 112 and 128 nm, respectively. Encapsulation efficiency of Mitomycin was 27 and 21 % for SPC and HSPC liposomes, respectively. Addition of Curcumin to the samples remarkably improved Mitomycin cytotoxicity. Concerning DNA fragmentation, Curcumin exhibited a protective effect when used in combination with Mitomycin.
Conclusion: Synergistic effects of Curcumin and Mitomycin were observed in terms of cell toxicity. Together, since Curcumin exerts anti-oxidative properties, its co-administration with a chemotherapeutic agent might protect normal cells from adverse effects of such drugs.- انتشار مقاله: 11-04-1397
- نویسندگان: Farjad Amanolahi,Ali Mohammadi,Reza Kazemi Oskuee,Leila Golami,Bizhan Malaekeh-Nikouei
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Hydrolysis,Curcumin,Photostability,RP-HPLC
- چکیده:
- چکیده انگلیسی: Objective: This study was designed to develop and validate a new reversed-phase high-performance liquid chromatography (RP-HPLC) method based on Q2 (R1) International Conference on Harmonization (ICH) guideline for determination of curcumin in pharmaceutical samples.
Materials and Methods: The HPLC instrument method was optimized with isocratic elution with acetonitrile: ammonium acetate (45:55, v/v, pH 3.5), C18 column (150 mm×4.6 mm×5 µm particle size) and a flow rate of 1 ml/min in ambient condition and total retention time of 17 min. The volume of injection was set at 20 µl and detection was recorded at 425 nm. The robustness of the method was examined by changing the mobile phase composition, mobile phase pH, and flow rate.
Results: The method was validated with respect to precision, accuracy and linearity in a concentration range of 2-100 µg/ml. The limit of detection (LOD) and limit of quantification (LOQ) were 0.25 and 0.5 µg/ml, respectively. The percentage of recovery was 98.9 to 100.5 with relative standard deviation (RSD) < 0.638%.
Conclusion: The method was found to be simple, sensitive and rapid for determination of curcumin in pharmaceutical samples and had enough sensitivity to detect degradation product of curcumin produced under photolysis and hydrolysis stress condition.- انتشار مقاله: 02-10-1395
- نویسندگان: Farjad Amanolahi,Ali Mohammadi,Reza Kazemi Oskuee,Hooriyeh Nassirli,Bizhan Malaekeh-Nikouei
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Cholesterol,Anti-hyperlipidemic,Aqueous extract,green tea,Nicotinic acid
- چکیده:
- چکیده انگلیسی: Objective: The aim of the present study was to elucidate the possible biochemical improving effect in lipid metabolic that may result from continuous treatment with Green Tea extract in normal albino rats and those rendered hyperlipidemic by long term supplementation of fat-enriched diet.
Materials and Methods: Fifty male albino rats aged six weeks with 200±10 g weight were randomly divided into five groups: Group A (negative control), groups B (positive control), Group C (treatment with drug), Group D (treatment with extract), and Group E (prevention with extract). All groups except Group A were received fat-enriched diet throughout the study. Group C received 25 mg/kg/day of the nicotinic acid from day 28 to the end of study. Group D was also treated with 100 mg/kg/day of the extract from day 28 to the end of study and finally group E was also treated with 100 mg/kg/day of the extract from the start of the study to the end. Lipid levels were determined weekly. Data were expressed as mean±SEM which were calculated using SigmaPlot® software. The obtained data were statistically analyzed using Student's t–test.
Results: In group (D), total cholesterol, LDLc, HDLc, and triglyceride levels were significantly decreased by 33.3%, 30.2%, 40%, respectively, compared with the group C (pConclusion: The results of this study demonstrated that the extract of green tea has a hyperlipidemic lowering effect.
- انتشار مقاله: 07-03-1391
- نویسندگان: Farjad Amanolahi,Hasan Rakhshande
- مشاهده
- جایگاه : پژوهشی
- مجله: Avicenna Journal of Phytomedicine
- نوع مقاله: Journal Article
- کلمات کلیدی: Ferula latisecta,Kopetdaghin C,Latisectin,Sesquiterpene
- چکیده:
- چکیده انگلیسی: Objective: The genus of Ferula belongs to the tribe Peucedaneae, subfamily of Apioideae and family of Umbelliferae with 133 species distributed throughout the Mediterranean area and central Asia, especially in the former USSR and neighboring countries such as Iran. The popular Persian name of the most of these species is “Koma”. In this research we tried to isolate and elucidate the structure of new sesquiterpene in the root of Ferula latisecta (F. latisecta). Materials and Methods: Dried and powdered roots of F. latisecta were extracted with CH2Cl2 using a Soxhlet apparatus. The extract was concentrated in vacuo to give a red extract. The extract was subjected to column chromatography on silica gel. 1H NMR, 13C NMR, DEPT, 1H-1H COSY, HMBC, HSQC, and NOESY spectra were the methods we used to elucidate the structure of new sesquiterpene in this plant. Results: One new sesquieterpene coumarin, namely Latisectin and IUPAC name [1-(2-Hydroxy-4-methoxy-phenyl)-3,4,8,12-tetramethyl-trideca-4,7,11-trien-1-one ] , together with one known compound , Kopetdaghin C, were isolated from the root of F. latisecta. Conclusion: In this research the structure of one new and one known sesquiterpene in the root of F. latisecta was elucidated.
- انتشار مقاله: 24-11-1390
- نویسندگان: Mehrdad Iranshahi,Farjad Amanolahi,Bernd Schneider
- مشاهده