Showing 7 results for Ranji
Keyvan Ghasami, Akram Asghari, Fereshteh Naranji, Kamran Moshfeghi, Babak Eshrati,
Volume 12, Issue 4 (2-2010)
Abstract
Background: Tension headaches are the most basic reasons for referring to physicians throughout the world. Iron anemia, on the other hand, is the most common type of anemia among women who are in productive age in the world. This study was done to investigate the relationship between vascular headaches and iron anemia and to see the effect of iron tablets administration on the treatment of these headaches in women who are in productive age. Materials and Methods: In this quasi-control study, 50 women in reproductive age who had iron anemia and vascular headaches, referring to the neurologic clinic of Vali-asr Hospital in Arak, were selected and treated with ferrous sulfate tablets for three months. For verifying the treatment, patients' hemoglobin was monitored after one month, and in case of any significant increases in this value, the patients discontinued participating in the study. The number of headache attacks and the number of analgesics used before, through and three months after beginning the administration of ferrous sulfate were noted for all of the patients. Results: The mean number of the headache attacks one month before treatment, during the treatment and three month after the treatment were 19.6±28 , 14.2±11.2 , 13.3±11.8, respectively (p=0.0001) . In addition, the mean number of used analgesics before the treatment, through the treatment and three month after the treatment were 30.1±14.1, 14.3±11.2, 13.1±16.1, respectively (p=0.0001). Conclusion: It seems that using iron tablets can be useful in treatment of vascular headaches.
Fatemeh Hakimi, Najmeh Ranji, Mohammad Faezi Ghasemi,
Volume 19, Issue 7 (10-2016)
Abstract
Background: Pseudomonas aeruginosa is a major nosocomial pathogen that due to its intrinsic and acquired resistance to a wide spectrum of antibiotics poses a threat in clinical settings. One of the drug resistance mechanisms in P. aeruginosa is mutation in negative regulators of efflux pump systems such as nalC. The aim of this study was investigation of nalC mutations in P. aeruginosa isolates from some Rasht hospitals and Lahijan laboratories.
Materials and Methods: In this cross-sectional study, forty-five P. aeruginosa strains was isolated from several Rasht hospitals and Lahijan laboratories between 2013 to 2014 and identified by biochemical tests. The antibiotic resistance and susceptibility of isolates was determined by Kirby Bauer method and microdilution method. Then PCR-sequencing was carried out to assess nalC mutations in ciprofloxacin resistant isolates.
Results: In this study, the most P. aeruginosa strains was isolated from urine sample (53%), followed by burned strains (31%). The most resistance was seen to erythromycin (100%) and the lowest resistance was seen to ciprofloxacin (~31 %). The highest MIC of ciprofloxacin was determined in some strains >512 μg/ml. Sequencing results showed that 12 ciprofloxacin resistant isolates had one or several missense mutations G71E, S209R and E153Q in nalC gene.
Conclusion: Given that mutation was defined in most isolates in this study, it seems that mutation in nalC gene plays an important role in ciprofloxacin resistance of nosocomial P. aeruginosa isolates in Guilan province.
Aref Mohammadipour, Najmeh Ranji, Leila Asadpour,
Volume 20, Issue 5 (8-2017)
Abstract
Abstract
Background: Pseudomonas aeruginosa is an opportunistic nosocomial pathogen that using several classes of antibiotics to treat has been led to the emergence of multiple drug resistance. One of the drug resistance mechanisms in Pseudomonas aeruginosa is overexpression of mexXY-oprM efflux pump system. Silybin as main flavonolignan of silymarin extracted from Silybum marianum is a hepatoprotective agent that its anti-bacterial properties was studied, recently. In this study, the effect of combination of silybin and ciprofloxacin on oprM gene expression in clinical isolates of Pseudomonas aeruginosa was evaluated.
Materials and Methods: In this study, seven ciprofloxacin resistant isolates of Pseudomonas aeruginosa were treated by ciprofloxacin (1/2MIC) only (control sample) and in the combination with silybin-encapsulated micelle (nanoparticles) (test sample). After 24h, RNA extraction and cDNA synthesis were performed in silybin treated and un-treated cells and oprM gene expression was quantitatively investigated by realtime PCR method.
Results: Results of this study showed that a silybin encapsulated in nanoparticles (400µg/ml) induces death up to 50% in resistant isolates treated by ciprofloxacin (1/2MIC) during 24h. Also, quantitative Real-Time PCR analysis revealed that silybin encapsulated in nanoparticles decreases the expression of oprM gene compared to silybin untreated cells.
Conclusion: It seems that Decrease of oprM expression in resistant isolates lead to decrease of mexAB-oprM and mexXY-oprM in cell surface, subsequently decrease of antibiotic withdrawal to extracellular environment and increase of sensitivity to antibiotics.
Saeedeh Balabandi, Zeinab Khazaei -Koohpar, Najmeh Ranji,
Volume 20, Issue 7 (10-2017)
Abstract
Abstract
Background: Candida albicans as an opportunistic fungal pathogen in human causes candidiasis. The widespread use of azoles has led to the increase of azole resistance in Candida albicans isolates. Mutation in the ERG11 gene is one of several azole resistance reasons in Candida albicans. The aim of this study was to find ERG11 gene mutations in fluconazole resistant isolates in Rasht.
Materials and methods: Candida albicans isolates were identified by standard identification methods such as germ tubes. The fluconazole resistance and susceptibility of the isolates was evaluated by Disc diffusion and MIC methods. For mutation determining, ERG11 gene was amplified by PCR and then sequenced in clinical isolates.
Results: From 23 isolates of Candida albicans, 20 isolates were fluconazole resistant. The MIC of fluconazole in these isolates was determined between 128 to 2048µg/ml. Also, sequencing analysis showed that 10 fluconazole resistant isolates had two missense mutations (D116E and E266D) in ERG11 gene.
Conclusion: In this study, resistance to high concentration of fluconazole shows that different mechanisms simultaneously implicated in developing azoles resistance in the isolates. Association of ERG11 gene mutation and deregulation of other genes can be led to resistance to high fluconazole concentration in this study.
Bozorgmehr Imani Pirsaraei, Najmeh Ranji, Leila Asadpour,
Volume 21, Issue 2 (5-2018)
Abstract
Abstract
Background: Pseudomonas aeruginosa is an opportunistic gram-negative bacterium that is a major cause of nosocomial infections such as severe burns. Curcumin is the main component of turmeric (Curcuma longa) that has anti-cancer and anti-inflammatory effects. The aim of this study was to evaluate antibacterial effect of curcumin in ciprofloxacin resistant isolates of Pseudomonas aeruginosa through mexC and mexD gene expression.
Materials and Methods: In this descriptive-analytical study, Pseudomonas aeruginosa strains were obtained from hospitals and laboratories in Guilan province. After disc difusion and MIC tests, four ciprofloxacin resistant strains of Pseudomonas aeruginosa were treated by ciprofloxacin (1/2MIC) only (control sample) and in the combination with curcumin encapsulated in micelle nanoparticles (test sample). After 24h, RNA extraction and cDNA synthesis was performed. Then, the expression of mexC and mexD genes was evaluated quantitatively by Real-time PCR method in curcumin treated and un-treated cells
Results: This study showed that combination of ciprofloxacin (1/2 MIC) with curcumin encapsulated in micelle nanoparticles led to approximately 50% of growth inhibition in Pseudomonas aeruginosa. In treated cells with curcumin and ciprofloxacin compared to treated cells with ciprofloxacin alone, mexC and mexD genes were significantly (p<0.05) downregulated >0.65 fold in three isolates and >0.1 fold in four isolates, respectively.
Conclusion: Our results suggested that curcumin encapsulated in micelle nanoparticles combined with 1/2 MIC value of ciprofloxacin inhibits the growth of Pseudomonas aeruginosa through reducing mexC and mexD expression.
Pedram Pouryari Biyachal, Najmeh Ranji, Ali Nazemi,
Volume 24, Issue 1 (April & May 2021)
Abstract
Background and Aim: Non-syndromic hearing loss is a genetically heterogeneous disorder. Mutation in the GJB2 gene is a major cause of non-syndromic hearing loss in numerous countries. This study aimed to evaluate GJB2 mutations in 31 individuals with non-syndromic hearing loss
Methods & Materials: In this descriptive cross-sectional study, the required blood samples were collected from 31 individuals with non-syndromic hearing loss in Rasht and Bandar Anzali Cities, Gilan Province, Iran. After DNA isolation, the GJB2 gene was amplified by the PCR method and underwent sequencing.
Ethical Considerations:This study was approved by the Ethics Committee of the Islamic Azad University, Mashhad Branch (Code: IR.IAU.MSHD.REC.1398.027).
Results: In this study, 3 mutations were determined in 18 individuals with hearing loss. Accordingly, 35delG mutation had the highest frequency (48.38%) in individuals with hearing loss as homozygote (n=14) and heterozygote (n=2). A patient with heterozygosity in V153I mutation and a patient with compound heterozygosity in 35delG/G200R mutation was determined.
Conclusion: It appears that 35delG mutation is a common mutation in the GJB2 gene in individuals with non-syndromic hearing loss in Guilan Province.
Andia Seyedi Moghaddam, Mahdieh Salimi, Najmeh Ranji, Hossein Mozdarani,
Volume 25, Issue 1 (April & May- 2022)
Abstract
Background and Aim MicroRNAs (miRNAs) are a class of small non-coding RNAs (17-25 nucleotides) that have been studied in many diseases. miRNAs studies in different cancers have shown that miRNAs may be considered oncogene or tumor suppressor. So far, many studies have shown that miR-17-5p and miR-93-5p are important regulatory molecules in some biological processes, such as cell proliferation, associated with cancer formation. This study aimed to investigate and compare the tissue and plasma expression levels of miR-17-5p and miR-93-5p in patients with ductal carcinoma breast cancer with the normal control group.
Methods & Materials The total RNA (including miRNA) was extracted from breast and plasma tissue samples of cancerous and normal samples. The RNA concentration and purity were confirmed using optical absorbance measurements. cDNA was synthesized, and the expression levels of miR-17-5p and miR-93-5p were assessed semi-quantitatively by SYBR Green-based real-time RT-PCR assay in plasma and breast tissues of ductal carcinoma breast cancer compared with the control normal samples with SNORD47 as internal normalizer. Data were statistically evaluated using GraphPad Prism 8.0.2.
Ethical Considerations This study was approved by the Ethics Committee of the institute (IRAN 52d/4922, 6.10.2016). All study individuals signed a consent form to use their clinical samples and personal data under the physician’s supervision.
Results The expression level of miR-17-5p showed significantly higher expression in tissues and plasma of the cancer group compared with the control group (P<0.0001). It was also significantly associated with tumor stage and lymph node, and ER (estrogen receptor) and PR (progesterone receptor) status (P<0.0001). While decreased expression of miR-93-5p in plasma and tumor tissues was shown to be significantly associated with tumor stage and lymph node involvement (P<0.0001).
Conclusion The data revealed that high expression of miR-17-5p and low expression of miR-93-5p in both plasma and breast tumor might be associated with poor prognosis in breast cancer. However, miR-17-5p, due to the greater change in expression and ease of plasma detection, may serve as a possible non-invasive biomarker for breast cancer’s poor prognosis. Further follow-up studies are required to confirm this finding.
