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Showing 2 results for Biochemical Marker

Hamidreza Abri, Minoo Mahmoodi , Siamsk Shahidi ,
Volume 18, Issue 3 (10-2018)
Abstract

Background & objectives: The aim of the present study was to investigate the effects of   oral creatine supplementation on biochemical markers of liver, kidney and testis in the male rats under swimming training plan.
Methods: In this study, male Wistar rats, weighing 245±5gr, were divided into five groups (n=8): control, exercise plus zero dose, exercise plus low-dose, exercise plus moderate dose and exercise plus high dose of creatine (200,300 and 600 mg/kg/d respectively). Biochemical studies of blood serum were performed ten days after creatine supplementation and swimming exercises. Following serum collection, the alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), creatinine and testosterone levels were measured using spectrophotometry method. Statistical analysis was performed by SPSS software using mixed model ANOVA.
Results: serum levels of ALP showed statistically significant differences between groups receiving low and moderate doses of creatine compared to both control and exercise with zero dose  (p<0.05). Also, the results of serum levels of BUN, ALT and AST showed there was no significant difference between the exercise plus zero dose of creatine, exercise plus low-doses of creatine group, exercise plus moderate dose of creatine, exercise plus high dose of creatine groups and control group. The exercise group with high doses of creatine significantly showed a higher serum creatinine level than control group (p<0.05).The serum testosterone level was significantly higher in the exercise with moderate doses of creatine group than in the control group and exercise plus zerecaratin dose (p<0.05).
Conclusion: The results suggested that short-term creatine supplementation (up to 10 days) might adversely affect some biochemical markers of liver, kidney and testis. However, further studies are necessarily needed to clarify the consumption of short-term creatine supplementation.
 
Navideh Haghnavaz, Faezeh Asghari, Zeynab Sattari, Monire Babaei, Tohied Kazemi,
Volume 18, Issue 4 (3-2019)
Abstract

Background & objectives: Breast cancer is one of the most important cancers in women worldwide. Taxol as a chemotherapeutic agent, is used for treatment of breast cancer.The aim of this study was to investigate alterations in the expression of mir-1246 and mir-224 in four breast cancer cell lines after Taxol treatment with the goal of introducing them as a biochemical marker for determining response or resistance of breast cancer to the Taxol therapy.
Methods: In this in vitro study, four breast cancer cell lines including MCF-7, MDA-MB-231, SKBR-3 and BT-474 were cultured in RPMI1640 medium supplemented with 10% FBS and antibiotics. Then, MTT assay was performed to determine IC50 concentration of Taxol. Cells were treated for 24 hours and then RNA extraction and cDNA synthesis were performed. Alterations in the expression level of mir-1246 and mir-224 were quantitated using qRT- PCR.
Results: After treatment with Taxol, the expression level of mir-1246 was significantly up-regulated in two HER2-overexpressing cell lines, BT-474 (113 fold) and SKBR-3 (1.4 fold), and down-regulated in two HER2-negative cell lines, MCF-7 (45.5 fold) and MDA-MB-231 (7.7 fold). Expression of mir-224 was detected only in two cell lines including SKBR-3 and MDA-MB-231, and was down-regulated after treatment with Taxol (2.1 and 17.2 fold, respectively).
Conclusions: According to the different pattern of alteration in the expression level of mir-1246 in HER2-overexpressing breast cancer cell lines compared to HER2-negative cell lines after treatment with Taxol, this miRNA could be a useful biomarker for responsiveness to Taxol in  different types of HER2-positive and -negative breast cancers.
 

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مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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