153 results on '"Shakeri, F."'
Search Results
2. Solar extreme ultraviolet variability of the quiet Sun
- Author
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Shakeri, F., Teriaca, L., and Solanki, S. K.
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Astrophysics - Solar and Stellar Astrophysics - Abstract
The last solar minimum has been unusually quiet compared to the previous minima (since space-based radiometric measurements are available). The Sun's magnetic flux was substantially lower during this minimum. Some studies also show that the total solar irradiance during the minimum after cycle 23 may have dropped below the values known from the two minima prior to that. For chromospheric and coronal radiation, the situation is less clear-cut. The Sun's 10.7\,cm flux shows a decrease of $\sim4\%$ during the solar minimum in 2008 compared to the previous minimum, but \ion{Ca}{II} K does not. Here we consider additional wavelengths in the extreme ultraviolet (EUV), specifically transitions of \ion{He}{I} at 584.3\,\AA\ and \ion{O}{V} at 629.7\,\AA , of which the CDS spectrometer aboard SOHO has been taking regular scans along the solar central meridian since 1996. We analysed this unique dataset to verify if and how the radiance distribution undergoes measurable variations between cycle minima. To achieve this aim we determined the radiance distribution of quiet areas around the Sun centre. Concentrating on the last two solar minima, we found out that there is very little variation in the radiance distribution of the chromospheric spectral line \ion{He}{I} between these minima. The same analysis shows a modest, although significant, 4\% variation in the radiance distribution of the transition region spectral line \ion{O}{V}. These results are comparable to those obtained by earlier studies employing other spectral features, and they confirm that chromospheric indices display a small variation, whereas in the TR a more significant reduction of the brighter features is visible.
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- 2015
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3. Rosmarinic acid affects immunological and inflammatory mediator levels and restores lung pathological features in asthmatic rats
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Shakeri, F., Eftekhar, N., Roshan, N. Mohammadian, Rezaee, R., Moghimi, A., and Boskabady, M.H.
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- 2019
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4. Nonnegative and eventually positive matrices
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Shakeri, F. and Alizadeh, R.
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- 2017
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5. Prevalence of Klebsiella Pneumoniae in Panje Azar Hospital of Gorgan, Iran, 2011
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Mahmoudjanlou, H, Ghazisaeedi, K, Shakeri, F, and Ghaemi, EA
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klebsiella pneumoniae ,esbl ,ctx-m ,Medicine - Abstract
Abstract Background and Objective: Klebsiella pneumoniae is one of the agents causing nosocomial infection therefore, we decided to report the prevalence of Klebsiella pneumoniae caused infection. Material and methods: The frequency of Klebsiella in culture media samples of Panje Azar hospital was studied in 2011-2012. After determination of the species with biochemical methods and determination of resistance to third generation cephalosporins, the existence of responsible genes for this resistance was investigated using specific primers. The PCR product for CTX-M gene was sequenced. Results: During the study, 70 isolates of Klebsiella were isolated in that 51 (72.8%) related to three months of November, December and January. Except for the one related to November, other ESBL cases belonged to these three months. Based on molecular investigation of ESBL genes, these isolates at least were in 3 types and had a high frequency in Internal, female and Emergency wards. Conclusion: The present report implied a sudden prevalence of Klebsiella pneumoniae that detected and controlled by a correct monitoring. Keyword: Klebsiella Pneumoniae, ESBL, CTX-M
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- 2015
6. Rapid DNA extraction of bacterial genome of Staphylococcus aureus using laundry detergents and assessment of the efficiency of DNA in downstream process using PCR
- Author
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Mousazade moghadam M, Babavalian H, Mirnejad R, and Shakeri F
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bacterial genome ,dna extraction ,laundry powder ,pcr ,staphylococcus aureus ,Medicine - Abstract
Abstract Background and objectives: Genomic DNA extraction of bacterial cells is of processes performed normally in most biological laboratories therefore, various methods have been offered, manually and kit, which may be time consuming and costly. In this paper, genomic DNA extraction of Staphylococcus aureus was investigated using some laundry detergent brands available in Iran to achieve a rapid and cost effective method. Material and Methods: five-enzyme Taj brand, three-enzyme Saftlan brand ,and Darya and Pak brands without enzyme were used in the concentrations of 10, 20, 40, 80 mg/L. Afterwards, in order to evaluate the efficiency of extracted DNA in downstream processing, PCR test was performed for femA gene in the genome of Staphylococcus aureus. Results: DNA extraction using different concentrations of the brands show that extracted DNA using 40 mg/L Saftlan and Taj brand powders have the best results according concentration (µg/ml) and purity (A260/A280) parameters. These parameters are 387.5 1.88 (Taj), 254.1 2.80 (Softlan), 396.6 1.95 (Manual) and 423.3 2.2 (Kit), respectively. Afterward, the PCR test results by show that DNA extraction using laundry detergents has no effect on its efficiency in order to be used in downstream processes. Conclusion: These results indicate that the proper concentrations of laundry detergents can be used to extract genomic DNA with similar efficiency to kit and manual extraction methods. Key words: Bacterial genome, DNA extraction, laundry powder, PCR, Staphylococcus aureus
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- 2012
7. Extended spectrum beta lactamase producing E.coli isolated from Gorgan, North of Iran
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Babaii Kochaksaraii M, NasrolahiOmran A, Javid N, Shakeri F, Yazdi M, and Ghaemi E A
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e.coli ,esbl ,bla gene ,uti ,Medicine - Abstract
Abstract Background and objectives: The increase of ESBL producing E.coli can create a tremendous difficult y for the health system. These isolates leads to rapid transmission of causative genes to other clinically important bacteria and synchronously increased resistant to other antibiotics. This study was carried out to determine the prevalence of this isolate and related genes in Gorgan, North of Iran. Material and Methods: This study was conducted on 218 isolated E.coli from urinary tract infection of outpatients referring to six medical laboratories in Gorgan, during 2010-11. The resistance to Cefotaxim (Mast Co.) was assessed by Kirby-Bauer disk diffusion method. The confirmatory test for detection of resistant isolates was carried out by double disk method at the presence of Cefotaxim and clavulanic acid. The presence of β lactamase gene of blatem, blactx and blashv in ESBL was assessed by PCR method. Results: of 218, 70 isolates (32.1%) are resistant to Cefotaxim. Sixty-two (88.6%) of them are confirmed as ESBL producing E.coli. β lactamase genes of blactx, blatem and blashv can be seen in 28(45.2%), 26(41.9%) and 6(9.7%) isolates, respectively. Conclusion: the prevalence of ESBL producing E.coli in Gorgan is in the range of country average and blaCTX-M gene is the most common gene. Key words: E.coli, ESBL, bla gene, UTI
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- 2012
8. Efficiency of differential transformation method for nonlinear oscillation: Comparison with HPM and VIM
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Ghafoori, S., Motevalli, M., Nejad, M.G., Shakeri, F., Ganji, D.D., and Jalaal, M.
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- 2011
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9. Cardiovascular Effects of Nigella Sativa L. and its Constituents
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Shakeri, F., primary, Khazaei, M., additional, and Boskabady, M. H., additional
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- 2018
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10. The effect of synthetic alginate sulfate hydrogels with recombinant PDGF-BB on Wound healing
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Babavalian, H., primary, Tebyanian, H., additional, Latifi, A. M., additional, Shokrgozar, M. A., additional, Bonakdar, S., additional, and Shakeri, F., additional
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- 2018
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11. Linear maps preserving Pareto eigenvalues
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Alizadeh, R., primary and Shakeri, F., additional
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- 2016
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12. Obstructive sleep apnea as a risk factor in coronary artery disease
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Mozaffari, A., primary, Hejazi, S., additional, Afrakhteh, Z., additional, Shakeri, F., additional, Mohebi, S., additional, and Zamanian, H., additional
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- 2015
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13. Solar extreme ultraviolet variability of the quiet Sun
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Shakeri, F., primary, Teriaca, L., additional, and Solanki, S. K., additional
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- 2015
- Full Text
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14. Effectiveness of red clover in alleviating menopausal symptoms: a 12-week randomized, controlled trial
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Shakeri, F., primary, Taavoni, S., additional, Goushegir, A., additional, and Haghani, H., additional
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- 2015
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15. INTRODUCTION OF FUNGAL NECROSIS INDUCING PHYTOTOXIN FOR BIOCONTROL OF SINAPIS ARVENSIS AS A COMMON WEED IN IRAN.
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Shakeri, F., Latifi, A. M., Mirzaii, M., Babavalian, H., and Tebyanian, H.
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SINAPIS , *BIOLOGICAL weed control , *NECROSIS , *PHYTOTOXINS , *PLANTS - Abstract
Weeds are always a serious problem in agriculture. Depending on the type of product and weed, wide ranges of fighting methods have been utilized and consequently, it is associated with different harmful economic and environmental effects in different countries. Sinapis arvensis is a common weed with the ecumenical expansion causing performance reduction of many crops, especially wheat. In comparison to the other methods, the biological control method is more efficient. In this study, 4 strains of pea pesto-stricken farms, were isolated from Iran (Lorestan) with the aim of biological control of the Sinapis arvensis weeds. The effects of 50 μl /cm2 produced supernatant of 7 days cultured fungal biomass that was purified by filtration were assayed, on the goal plant in laboratory and research greenhouse, three-fold and according to numbering method, the most necrotic was related to IRLM.LC34 strain, because destructive effects were appeared as necrosis on leaf, stem and finally lead to the death. Therefore this strain was selected for further study. Since the strain was native, the supernatant was inspissated using ammonium sulfate, as a result, causes severe destructive effects on the plant. The protein purification using FPLC showed the presence of the main part containing a protein with about 24 kDa. The direct effect of 50 μl purified protein mixed with 0.5% tween 20 on the leaves of weed, resulting in necrosis on target plant. Its morphological properties survey based on 18S rDNA analysis showed that this strain has the most similarity to Fusarium exosporium. These results indicated that selective destructive effect on dicotyledon weeds and non-harmful effect on the type monocotyledon plants like wheat. In addition, losing of the biological activity of phytotoxin could have any serious environmental hazard. [ABSTRACT FROM AUTHOR]
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- 2017
16. Linear maps preserving Pareto eigenvalues.
- Author
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Alizadeh, R. and Shakeri, F.
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EIGENVALUES , *PERMUTATIONS , *PARETO analysis , *MATRICES (Mathematics) , *GENERALIZABILITY theory - Abstract
In this paper, we give the characterization of Pareto eigenvalues preserving linear maps on real square matrices. In fact, we show that a linear mapon, the algebra of allnbynmatrices with real entries, preserves Pareto eigenvalues if and only if, for some nonnegative generalized permutation matrixP. [ABSTRACT FROM PUBLISHER]
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- 2017
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17. P478: Psychometric properties of Philadelphia Geriatric Centre Morale Scale in Iranian elderly
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Foroughan, M., primary, Shakeri, F., additional, and Farzad, F., additional
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- 2014
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18. Analytical Simulation of MHD Nanofluid Flow over the Horizontal Plate
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Sadoughi, K., primary, Hosseini, M., additional, Shakeri, F., additional, and Azimi, M., additional
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- 2013
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19. SUN-PP165: Consumption of Sugar Sweetened Beverages in Relation to Stroke
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Niknam, M., Saadatnia, M., Shakeri, F., Hassanzadeh Keshtli, A., Esmaillzadeh, A., and on behalf of Community Nutrition
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- 2015
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20. SUN-PP166: Adherence to a Dash-Style Diet in Relation to Stroke: A Case Control Study
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Niknam, M., Saadatnia, M., Shakeri, F., Hassanzadeh Keshtli, A., Esmaillzadeh, A., and on behalf of Community Nutrition
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- 2015
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21. The association of 1661AG polymorphism for CTLA-4 gene in patients with systemic lupus erythematosus.
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Shojaa, M., Amol, M., Javid, N., Shakeri, F., Aghaie, M., Qorbani, M., Rokn-Sharif, Sh., Mohammadi, Z., and Haghighi, H.
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SYSTEMIC lupus erythematosus ,ACADEMIC medical centers ,ALLELES ,GENES ,GENETIC polymorphisms ,POLYMERASE chain reaction ,CASE-control method ,GENETICS - Abstract
Background: Cytotoxic lymphocyte antigen-4 (CTLA-4) plays an important role in regulating T cell activation. CTLA-4 gene polymorphism is related to genetic susceptibility to various autoimmune diseases, including systemic lupus erythematosus (SLE). This study aimed to evaluate the role of CTLA-4 polymorphism at positions-1661AG in patients with SLE. Materials and Methods: This study was performed on 180 SLE patients referred to 5th Azar educational hospital (Gorgan, Iran during 2010-2011) and 304 ethnically-and age-matched healthy controls. Polymerase chain reaction restriction fragments length polymorphism (PCR-RFLP) was used to analyze the genotype and allele frequencies of this polymorphism. Results: No statistically significant difference was observed between the studied genotypic and allelic frequencies between the SLE patients and healthy controls. Moreover, no significant correlation was found between the different risk factors (e.g., age, ethnicity, history of the disease and the parents' relationship) and the different genotypes. Conclusion: Results suggest that the -1661AG polymorphism in the promoter region of the CTLA-4 gene has no role in the genetic susceptibility to SLE. [ABSTRACT FROM AUTHOR]
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- 2014
22. Application of HPM- Pade' Technique to a Jeffery--Hamel Flow Problem.
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Shakeri, F., Ganji, D. D., and Azimi, M.
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PERTURBATION theory ,HOMOTOPY theory ,ANALYTICAL solutions ,APPROXIMATION theory ,NUMERICAL analysis ,PADE approximant ,ORDINARY differential equations - Abstract
In this paper, the Jeffery--Hamel flow is studied. The velocity is evaluated by using an analytical solution technique: Homotopy perturbation method and Padé approximation. The results compared with the numerical results. Good agreement between analytical approximate solution and numerical method assure us about validity and accuracy of solution. [ABSTRACT FROM AUTHOR]
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- 2012
23. Locating Landfill for Solid Waste Municipal by Fuzzy Analytic Hierarchy process & Data envelopment analysis (Case Study: Alborz province).
- Author
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Moeinaddini, M., Tahari Mehrjardi, M. H., Khorasani, N., Danekar, A., Darvishsefat, A. A., and Shakeri, F.
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LANDFILLS ,SEWAGE ,SOLID waste management ,INDUSTRIAL waste research ,CLUSTER analysis (Statistics) - Abstract
Background and Objectives: Solid waste municipal landfill can have injurious effect on society health, economic and environment. Therefore, spread evaluation in locating landfill is necessary to identifying the best places. The purpose of this paper is locating landfill for solid waste municipal for center of Alborz province. Materials and Method: In this paper, suitable areas are identified for land filling solid waste municipal by weighted linear combination and cluster analysis in 20 years period. Thus, suitable areas were weighted by FAHP method. Those weights were used for ranking areas by DEA technique. Result: Results showed among five landfill alternatives for solid waste municipal for center of Alborz province, alternative 1 is the best for land filling. This place is just 7 percent of total suitable places. Conclusion: The approach are used in this article (combination method of fuzzy analytic hierarchy process & Data envelopment analysis) can be suitable for locating in other areas because when an option add or delete; option ranking is not different with previous [ABSTRACT FROM AUTHOR]
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- 2012
24. SOLUTION OF AN INTEGRO-DIFFERENTIAL EQUATION ARISING IN OSCILLATING MAGNETIC FIELDS USING HE'S HOMOTOPY PERTURBATION METHOD.
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Dehghan, M. and Shakeri, F.
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- 2008
25. Application of HPM- Pade' technique to a Jeffery-Hamel flow problem
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Shakeri, F., Ganji, D. D., and Mohammadreza Azimi
26. Association between CTLA-4 gene polymorphism and the risk of systemic lupus erythematosus: Brief report
- Author
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Shojaa, M., Aghaie, M., Amoli, M., Khashayar, P., Javid, N., Shakeri, F., Mostafa Qorbani, and Mohebbi, R.
- Subjects
lcsh:R5-920 ,Medicine and Health Sciences ,promoter regions ,CTLA-4 ,genetics ,lcsh:Medicine (General) ,polymorphism ,systemic lupus erythematosus - Abstract
Background: Cytotoxic lymphocyte antigen-4 (CTLA-4) plays an important role in regulating T cell activation. CTLA-4 gene polymorphisms are related with genetic susceptibility to various autoimmune diseases, including systemic lupus erythematosus (SLE). We analyzed the role of CTLA-4 polymorphisms at positions -318CT in patients who suffer from SLE. Methods: This study was performed on 180 SLE patients referred to 5th Azar University Hospital in Gorgan, Iran. Three hundred and four ethnically-and age-matched healthy controls with no history of autoimmune diseases entered the study between 5th May 2008 and 23rd October 2009. DNA was extracted from blood samples according to the standard procedure. Polymerase chain reaction- restriction fragments length polymorphism (PCR-RFLP) was used to analyze the genotype and allele frequencies of this polymorphism. PCR was carried out using the following primers: forward 5′-AAATGAATTGGACTGGATGGT-3′ and reverse 5′-TTACGAGAAAGGAAGCCGT G-3′. The frequency of alleles and genotypes were assessed using direct counting. Chi-square test and Fisher’s exact test were used to compare the association between the alleles and genotype frequencies and SLE. P
27. Use of Becker and neurotic pressure bioclimatic indices in the assessment of thermal comfort in outdoor environments based on meteorological data: Case study in three different climates of Iran
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Ghalhari, G. A. F., Shakeri, F., Abbasinia, M., Ghanadzadeh, M. J., reza tajik, and Asghari, M.
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neurotic pressure index ,thermal comfort ,becker bioclimatic index ,lcsh:R ,lcsh:Medicine ,outdoor environments ,climatic classification - Abstract
Background and aims: lack of thermal comfort in outdoor environments, can cause disorders and diseases, negative impact on productivity and performance, and even can cause death. Therefore, it is important to evaluate it. Various indices and models have been used to assess the level of comfort of humans. In most evaluations has been tried to estimate the comfort level using meteorological data such as temperature, humidity, Wind speed, solar radiation or a combinations. These indices provide climate data in a way that reflects individual’s response to climate conditions and, in a numerical classification, range from very appropriate to very inappropriate. These indices facilitate interpreting the complex effects of atmospheric elements on human comfort and allow comparison of different places from climatic comfort point of view. Today, bioclimatic studies, from human comfort point of view, are the basis of many management plans, especially health and treatment. Therefore, in this study, Becker and neurotic pressure bio climate index were used to evaluate discomfort in three different climates of Iran. Methods: In this study, thermal comfort was assessed in three different climates of Iran based on the Köppen climate classification including the semi-arid and cold climate (Arak), the humid subtropical climate (Sari) and the hot desert climates (Bandar Abbas) were done using of Becker and neurotic pressure bio climate index. Becker index known as Cooling Power index (CP) originated in the inclusion of only two climate parameters in the bioclimatic analysis by air temperature and wind speed. Cooling Power index has the advantage of being computed very easily; they are easily understood not only by specialists, but also by the wide public and have a good temporal applicability and availability for the studied territory. The cooling power of the environment depends on the difference between human body temperature and air temperature and also on the wind speed. The Neurotic pressure index determines the physiological pressure to provide comfort between absorption and heat release. The purpose of this index is to describe the comfort level using temperature, humidity and wind speed. This index offers separate equations for temperatures below and greater than 20 ° C. Meteorological data between 2014-2000 was used from the Meteorological Organization, including temperature, relative humidity and wind speed, to calculate the indices. Then the mean of the mentioned parameters was calculated daily for 15 years. Excel software and SPSS 22, were used for data analysis, descriptive statistics and linear regression were used. Results: The highest and lowest air temperature monthly mean values in Sari were recorded for August (27.55 ± 0.57°C)and January (7.9 ± 0.68°C), respectively.The highest and lowest monthly mean relative humidity values were recorded forDecember (81 ± 2.6 %) and August (73.7 ± 1.94%), respectively. In Arak and during the surveyed years, the highest average temperature (28.1 ± 0.65) was observed in July, and the lowest average temperature (-1.14 ± 1.94) was observed in January. Also, the highest humidity rate (70.67 ± 3.87) was observed in January and the lowest humidity rate (22.96 ± 1.25) was observed in July. Also in Bandar Abbas, the highest average temperature (34.27 ± 0.26) was observed in July and the lowest average temperature (17.44 ± 0.62) was observed in January. The highest humidity (68.39 ± 2.41)was recorded in August and the lowest humidity rate (57 ± 4) was in December. The mean of Becker index in Arak,Sari and Bandar Abbas was respectively 15.76 ± 6.3, 13.73 ± 5.2 and 8.93 ± 5.5µcal/cm2/s. According to the results of this index, the three climates covered cool to hot, warm and sultry. The mean of neurotic pressure index in months with temperatures below 20 ° C in Arak was 672 ± 148, in the city of Sari, 605.115.6 and in Bandar Abbas, 567.66 ± 46.76 kcal/hr/m2 and in months with a temperature above 20 ° C, respectively, was 3.37 ± 2. 5.42 ± 4.9 and 11.64 ± 7 kcal/hr/m2. Interpretation of this index showed that the studied areas have cold conditions (Arak) to fully uncomfortable condition (Bandar Abbas). Also, there was a high correlation between the two indexes in three different climates (R2> 0.9). Conclusion: The results of this study showed that the comfort indices reveal the comfort and discomfort periods in three different climates of the country, and despite some differences, show relatively similar manifestations of the comfort climate of under study cities. Results have shown that the studied areas are characterized by biochemical variation from hot to very cold conditions throughout the year. Regarding the advantageous of using these indices, it should be noted that the data measured by meteorological organizations can be used to forecast and timely announcement of heat and cold stresses as well as thermal comfort in different regions. It should be noted that thermal comfort varies with respect to the race, age, type of activity, clothing, metabolism rate, accommodation, etc. Evaluating the trend of thermal comfort indices can identify high-risk areas, which in this context presence of comprehensive and innovative policy making and planning, according to the climate changes and the ability to forecast and control the risks resulting from these changes, seems necessary for community members.
28. Introduction of fungal necrosis inducing phytotoxin for biocontrol of Sinapis arvensis as a common weed in Iran
- Author
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Shakeri, F., Latifi, A. M., Mirzaii, M., Babavalian, H., and Tebyanian, H.
29. A case-control study on potato consumption and risk of stroke in central Iran
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Khosravi-Boroujeni, H., Saadatnia, M., Shakeri, F., Keshteli, A. H., and Ahmad Esmaillzadeh
30. Corrélations motrices gastro-intestinales chez la poule et la pintade
- Author
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ROCHE, M., primary, SALIMI, M., additional, and SHAKERI, F., additional
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- 1979
- Full Text
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31. A survey of the prevalence of contraceptive uses in Jahrom City, 2011.
- Author
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Abdollahifard, Kh, Rahmanian, M., Maher, R., Shakeri, F., and Ramezani, L.
- Subjects
CONTRACEPTION - Abstract
Introduction: the purpose of the family planning programs is to make free and informed decisions about the number of children and the spacing between pregnancies as well as the prevention of unwanted pregnancies and also minimizing high-risk pregnancies. The aim of this study was to evaluate the use of various methods of contraception in women eligible for family planning in Jahrom City. Materials and Methods: This is a descriptive study. Indicators of health centers in Jahrom City were collected. 15,805 married women aged 10-49 who resided in rural areas of Jahrom were the target group of this study. Results: Findings show that the %16.9 of cases used pills, %2.1 took siclofem injections, %5.6 took medroxyprogesterone injections, %14.3 used condom, %4.6 used IUD, 22.9% underwent tubectomy, and 1.39% underwent vasectomy. Conclusions: Family planning Index in 2011 was 67.9 for Jahrom. The lowest rate belonged to vasectomy and tubal ligation had the highest rate of use. That shows men's poor participation in family planning programs and signifies women welcome permanent contraceptive methods. [ABSTRACT FROM AUTHOR]
- Published
- 2014
32. Evaluation of hypochondriasis rates in women with tubal ligation.
- Author
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Parandavar, N., Samanian, E., Shaker, H., Rahmanian, A., Ramezanli, S., Badiehpayma, Z., and Shakeri, F.
- Subjects
HYPOCHONDRIA ,ANXIETY ,QUESTIONNAIRES ,STATISTICAL sampling ,SCALE analysis (Psychology) ,TUBAL sterilization ,CITY dwellers ,CROSS-sectional method ,PSYCHOLOGY - Abstract
Intrduction: Anxiety is an unpleasant, ambiguous feeling with unknown sources. At times, anxiety is directed towards health, causing psychological disorders such as hypochondriasis which is caused by an incorrect interpretation of physical symptoms and its related information. Although family planning programs are needed in some communities, people who have this condition and use permanent contraceptive methods can exert evastating effects on country's population policies. Materials and Methods: This cross-sectional study aimed at investigating the prevalence of hypochondriasis in women with tubal ligation in 2013. 144 women were surveyed in Jahrom City. Simple random sampling was used. Available urban residents willing to participate during the period of study were used to collect relevant data. Data were collected via a two-part questionnaire including demographic data and Evans Syndrome Questionnaire containing 36 items. Based on the scores obtained by participants they were characterized as healthy (0-20), borderline (21-30), mild (31-40), medium (41-60) and severe (above 60) groups. The data were analyzed using the SPSS 16.0. Results: The mean age of participants was 44.03±8.05 and the age of tubal ligation was 32.79±6.68 years. In terms of education 36.4% of participants were below diploma and 7.1% had attended universities. 62.7% of women had vaginal deliveries and 15.5% had a history of both vaginal and cesarean. The mean score of hypochondriasis in all of participants were 25.69±9.49. 44 (30.6%) of the women were healthy but 8 (5.6%) women had sever hypochondriasis. 38.2% of these woman had hypochondriasis in borderline zone. There was a significant association between the age of tubal ligation, satisfaction with this method, and the score of hypochondriasis (p= 0.035). Conclusion: Psychological consultations before choosing a permanent method of contraception are essential for arriving at the desired outcomes and enhancing satisfaction with family planning. Although the return of these methods is trivial today, yet people's anxieties and obsessions can be effective on social and personal dissatisfactions with life, marital relationships, and transmission of this feeling to women who are medically required to undergo tubectomy. [ABSTRACT FROM AUTHOR]
- Published
- 2014
33. Locating Landfill for SolidWaste Municipal by Fuzzy Analytic Hierarchy process & Data envelopment analysis (Case Study: Alborz province)
- Author
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Moeinaddini, M., Tahari Mehrjardi, M. H., Khorasani, N., Danekar, A., Darvishsefat, A. A., and Shakeri, F.
- Abstract
Background and Objectives: Solid waste municipal landfill can have injurious effect on society health, economic and environment. Therefore, spread evaluation in locating landfill is necessary to identifying the best places. The purpose of this paper is locating landfill for solid waste municipal for center of Alborz province. Materials and Method: In this paper, suitable areas are identified for landfilling solidwaste municipal by weighted linear combination and cluster analysis in 20 years period. Thus, suitable areas were weighted by FAHP method. Those weights were used for ranking areas by DEA technique. Result: Results showed among five landfill alternatives for solid waste municipal for center of Alborz province, alternative 1 is the best for land filling. This place is just 7 percent of total suitable places. Conclusion: The approach are used in this article (combination method of fuzzy analytic hierarchy process & Data envelopment analysis) can be suitable for locating in other areas because when an option add or delete ; option ranking is not different with previous. [ABSTRACT FROM AUTHOR]
- Published
- 2012
34. Retention of ES cell-derived 129S genome drives NLRP1 hypersensitivity and transcriptional deregulation in Nlrp3 tm1Flv mice.
- Author
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Weiss FD, Alvarez Y, Shakeri F, Sahu A, Leka P, Dernst A, Rollheiser J, Vasconcelos M, Geraci A, Duthie F, Stahl R, Lee HE, Gellner AK, Buness A, Latz E, and Meissner F
- Subjects
- Animals, Mice, Apoptosis Regulatory Proteins metabolism, Apoptosis Regulatory Proteins genetics, Inflammasomes metabolism, Macrophages metabolism, Genome, Mice, Inbred C57BL, NLR Family, Pyrin Domain-Containing 3 Protein metabolism, NLR Family, Pyrin Domain-Containing 3 Protein genetics, Adaptor Proteins, Signal Transducing metabolism, Adaptor Proteins, Signal Transducing genetics
- Abstract
Immune response genes are highly polymorphic in humans and mice, with heterogeneity amongst loci driving strain-specific host defence responses. The inadvertent retention of polymorphic loci can introduce confounding phenotypes, leading to erroneous conclusions, and impeding scientific advancement. In this study, we employ a combination of RNAseq and variant calling analyses to identify a substantial region of 129S genome, including the highly polymorphic Nlrp1 locus, proximal to Nlrp3, in one of the most commonly used mouse models of NLRP3 deficiency (Nlrp3
tm1Flv ). We show that the presence of the Nlrp1129S locus leads to an increase in NLRP1B protein expression, and a sensitising of Nlrp3tm1Flv macrophages to NLRP1 inflammasome activation, independent of NLRP3 deficiency. Retention of 129S genome further leads to protein sequence differences and altered gene regulation across multiple cell types, including of the key tissue-resident macrophage marker, TIM4. Using alternative models of NLRP3 deficiency, including a previously undescribed conditional Nlrp3 allele enabling precise temporal and cell-type specific control over Nlrp3 deletion, we further show that NLRP3 contributes to Talabostat-driven IL-1β release. Our study also establishes a generic framework to identify functionally relevant SNPs and assess genomic contamination in transgenic mice using RNAseq data. This allows for unambiguous attribution of phenotypes to the target gene and advances the precision and reliability of research in the field of host defence responses., Competing Interests: Competing interests: EL is cofounder and consultant of IFM Therapeutics and Odyssey Therapeutics as well as a cofounder and board member of Dioscure Therapeutics and a Stealth Biotech. FM is a cofounder and consultant of Odyssey Therapeutics. The other authors declare no competing interests., (© 2024. The Author(s).)- Published
- 2024
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35. Identification of ASMTL-AS1 and LINC02604 lncRNAs as novel biomarkers for diagnosis of colorectal cancer.
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Shakeri F, Mohamadynejad P, and Moghanibashi M
- Subjects
- Humans, Male, Female, MicroRNAs genetics, MicroRNAs metabolism, Prognosis, Gene Expression Profiling, Middle Aged, RNA, Messenger genetics, RNA, Messenger metabolism, ROC Curve, Kaplan-Meier Estimate, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, Colorectal Neoplasms genetics, Colorectal Neoplasms diagnosis, Colorectal Neoplasms pathology, Biomarkers, Tumor genetics, Gene Expression Regulation, Neoplastic, Gene Regulatory Networks
- Abstract
Purpose: Colorectal cancer is one of the major leading causes of death worldwide, and available treatments for advanced colorectal cancer are not successful. Therefore, early detection of colorectal cancer is essential to improve patient survival, and biomarkers are potential tools to achieve this goal. Considering the key role of lncRNAs in cancers, the aim of this study is to identify lncRNAs involved in colorectal cancer as new potential prognosis biomarkers for CRC., Methods: In this observational study, gene expression data obtained from the TCGA database were analyzed, Identification of differentially expressed mRNAs, miRNAs, and lncRNAs was performed, and ceRNA network was drawn. Also, survival analysis of patients was performed in order to identify potential biomarkers related to the diagnosis and prognosis of colon cancer. After confirming the results using the GSE39582 dataset, the expression of target lncRNAs in colorectal tumor tissues was also investigated to confirm the bioinformatic data., Results: Analysis of the TCGA data showed that the expression of three lncRNAs-SNHG7, ASMTL-AS1, and LINC02604-that had the highest interaction with other miRNAs and mRNAs identified based on the ceRNA network was increased in colorectal cancer. Also, based on the ceRNA network, three microRNAs, hsa-let-7d-5p, hsa-mir-92a-3p, and hsa-mir-423-5p, and eight mRNAs, including CPA4, MSI2, RRM2, IGF2BP1, ONECUT2, HMGA1, SOX4, and SRM, were associated with all three mentioned lncRNAs, the expression of microRNAs was decreased and the expression of mRNAs was increased. By enrichment analysis, it was found that the target lncRNAs are involved in the processes of cell proliferation, apoptosis, and metastasis, indicating their importance in the development and malignancy of colorectal cancer. Furthermore, Kaplan-Meier analysis showed a significant increase in mortality in patients with higher expression levels of these lncRNAs. Analysis of the GSE39582 dataset, and real-time RT-PCR analysis, confirmed our bioinformatic results. Also, ROC analysis showed that SNHG7 was a relatively good promising biomarker (AUC = 0.73, p value = 0.02), while ASMTL-AS1 (AUC = 0.92, p value < 0.0001) and LINC02604 (AUC = 1.00, p value < 0.0001) emerged as excellent diagnostic biomarkers in colorectal cancer., Conclusion: It seems that increased expression of lncRNAs ASMTL-AS1 and LINC02604 can serve as molecular biomarkers for CRC, possibly through the sponge hsa-let-7d-5p, hsa-mir-92a-3p, and hsa-mir-423 5p, which increases target mRNAs, which are effective in the carcinogenesis process., (© 2024. The Author(s).)
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- 2024
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36. Aloe vera Leaf Extract Reduced BBB Permeability and Improved Neurological Results after Traumatic Brain Injury: The Role of Oxidative Stress.
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Khaksari M, Shahryari M, Raji-Amirhasani A, Soltani Z, Bibak B, Keshavarzi Z, and Shakeri F
- Subjects
- Animals, Male, Rats, Rats, Sprague-Dawley, Permeability drug effects, Disease Models, Animal, Oxidative Stress drug effects, Aloe chemistry, Blood-Brain Barrier drug effects, Blood-Brain Barrier metabolism, Brain Injuries, Traumatic drug therapy, Brain Injuries, Traumatic metabolism, Brain Injuries, Traumatic pathology, Plant Extracts pharmacology, Plant Leaves chemistry
- Abstract
Introduction: Recognizing the importance of medicinal plants and the absence of specific medications for traumatic brain injury (TBI) treatment, this study was conducted to evaluate the effects of an aqueous extract of Aloe vera on oxidative stress, blood-brain barrier (BBB) permeability, and neurological scores following TBI., Materials and Methods: Adult male rats were categorized into five groups: sham, TBI, vehicle, low-dose Aloe vera (LA), and high-dose Aloe vera (HA). We induced diffuse TBI using the Marmaro model and administered the aqueous Aloe vera leaf extract, as well as vehicle, via intraperitoneal injection half an hour after TBI. Neurological outcomes were assessed both before and several hours after TBI. Additionally, oxidative stress factors were measured 24 hr after TBI, and Evans blue content (a BBB permeability index) was determined 5 hr after TBI in both serum and brain., Results: Both LA and HA reduced the increase in BBB permeability after TBI, with HA having a more pronounced effect than LA. Both Aloe vera doses decreased brain MDA levels, increased brain TAC, and lowered both serum and brain PC levels. The impact of Aloe vera on brain oxidative parameters was more significant than on serum. HA also counteracted the declining effects of TBI on neurological outcomes at 4 and 24 hr post-TBI., Conclusion: This study suggests that Aloe vera extract may reduce BBB permeability and improve neurological outcomes after TBI by decreasing oxidative factors and increasing antioxidant factors., Competing Interests: The authors state that there is no conflict of interest, (Copyright © 2024 Mohammad Khaksari et al.)
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- 2024
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37. Auraptene inhibits migration, invasion and metastatic behavior of human malignant glioblastoma cells: An in vitro and in silico study.
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Mousavi SH, Jalili-Nik M, Soukhtanloo M, Soltani A, Abbasinezhad-Moud F, Mollazadeh H, Shakeri F, Bibak B, Sahebkar A, and Afshari AR
- Abstract
Objective: The present work examined the anti-metastatic effects of auraptene and their underlying mechanisms of action in U87 Glioblastoma multiforme (GBM) cells., Materials and Methods: To test the hypothesis, cell culture, Matrigel invasion assay, scratch wound healing assay, gelatin zymography assay, qRT-PCR, and western blot experiments were conducted., Results: At sublethal concentrations of 12.5 and 25 µg/ml, auraptene exhibited a significant reduction in cell invasion and migration of U87 cells, as assessed using scratch wound healing and Transwell tests, respectively. The qRT-PCR and zymography experiments demonstrated a significant decrease in both mRNA expression and activities of MMP-2 and MMP-9 following auraptene treatment. Western blot analysis also showed that MMP-2 protein level and phosphorylation of metastasis-related proteins (p-JNK and p-mTOR) decreased in auraptene-treated cells. Molecular docking studies consistently demonstrated that auraptene exhibits a significant affinity towards MMP-2/-9, the ATP binding site of mTOR and JNK1/2/3., Conclusion: Auraptene inhibited the migration and invasion of GBM cells. This inhibitory effect was induced by modulating specific mechanisms, including suppressing MMPs, JNK, and mTOR activities., Competing Interests: The authors have declared that there is no conflict of interest.
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- 2024
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38. Gene regulatory network analysis identifies MYL1, MDH2, GLS, and TRIM28 as the principal proteins in the response of mesenchymal stem cells to Mg 2+ ions.
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Nourisa J, Passemiers A, Shakeri F, Omidi M, Helmholz H, Raimondi D, Moreau Y, Tomforde S, Schlüter H, Luthringer-Feyerabend B, Cyron CJ, Aydin RC, Willumeit-Römer R, and Zeller-Plumhoff B
- Abstract
Magnesium (Mg)-based implants have emerged as a promising alternative for orthopedic applications, owing to their bioactive properties and biodegradability. As the implants degrade, Mg
2+ ions are released, influencing all surrounding cell types, especially mesenchymal stem cells (MSCs). MSCs are vital for bone tissue regeneration, therefore, it is essential to understand their molecular response to Mg2+ ions in order to maximize the potential of Mg-based biomaterials. In this study, we conducted a gene regulatory network (GRN) analysis to examine the molecular responses of MSCs to Mg2+ ions. We used time-series proteomics data collected at 11 time points across a 21-day period for the GRN construction. We studied the impact of Mg2+ ions on the resulting networks and identified the key proteins and protein interactions affected by the application of Mg2+ ions. Our analysis highlights MYL1, MDH2, GLS, and TRIM28 as the primary targets of Mg2+ ions in the response of MSCs during 1-21 days phase. Our results also identify MDH2-MYL1, MDH2-RPS26, TRIM28-AK1, TRIM28-SOD2, and GLS-AK1 as the critical protein relationships affected by Mg2+ ions. By offering a comprehensive understanding of the regulatory role of Mg2+ ions on MSCs, our study contributes valuable insights into the molecular response of MSCs to Mg-based materials, thereby facilitating the development of innovative therapeutic strategies for orthopedic applications., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)- Published
- 2024
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39. Anti-inflammatory, antioxidant, and immunomodulatory effects of Berberis vulgaris and its constituent berberine, experimental and clinical, a review.
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Shakeri F, Kiani S, Rahimi G, and Boskabady MH
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- Antioxidants pharmacology, Antioxidants metabolism, Cytokines, Anti-Inflammatory Agents pharmacology, Berberine pharmacology, Berberine therapeutic use, Berberis
- Abstract
Berberis vulgaris (B. vulgaris or barberry) is a medicinal plant that has been used for various purposes in traditional medicine. Berberine is one of the main alkaloids isolated from B. vulgaris and other plants. Both B. vulgaris and berberine have shown anti-inflammatory, antioxidant, and immunomodulatory effects in different experimental models and clinical trials. This review aims to summarize the current evidence on the mechanisms and applications of B. vulgaris and berberine in modulating inflammation, oxidative stress, and immune responses. The literature search was performed using PubMed, Scopus, and Google Scholar databases until August 2023. The results indicated that B. vulgaris and berberine could inhibit the production of pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β), interleukin 6 (IL-6), and interleukin-17 (IL-17), and enhance the expression of anti-inflammatory cytokines, such as interleukin 10 (IL-10) and transforming growth factor-β (TGF-β), in various cell types and tissues. B. vulgaris and berberine can also scavenge free radicals, increase antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), and reduce lipid peroxidation and DNA damage. B. vulgaris and berberine have been reported to exert beneficial effects in several inflammatory, oxidative, and immune-related diseases, such as diabetes, obesity, cardiovascular diseases, neurodegenerative diseases, autoimmune diseases, allergic diseases, and infections. However, more studies are needed to elucidate the optimal doses, safety profiles, and potential interactions of B. vulgaris and berberine with other drugs or natural compounds., (© 2024 John Wiley & Sons Ltd.)
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- 2024
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40. Identification of autophagy and angiogenesis modulators in colorectal cancer based on bioinformatics analysis.
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Shakeri F, Mohamadynejad P, and Moghanibashi M
- Subjects
- Humans, Large Neutral Amino Acid-Transporter 1 genetics, Large Neutral Amino Acid-Transporter 1 metabolism, Gene Regulatory Networks, Angiogenesis, RNA, Messenger genetics, Computational Biology, Gene Expression Regulation, Neoplastic, RNA, Long Noncoding genetics, RNA, Long Noncoding metabolism, MicroRNAs genetics, MicroRNAs metabolism, Colorectal Neoplasms genetics
- Abstract
Colorectal cancer (CRC) is the third most common cancer and the fourth leading cause of cancer-related death worldwide. The purpose of this study was to discover novel molecular pathways and potential prognosis biomarkers. To achieve this, we acquired five microarray datasets from the Gene Expression Omnibus (GEO) database. We identified differentially expressed genes between CRC and adjacent normal tissue samples and further validated them using The Cancer Genome Atlas (TCGA) database. Using various analytical approaches, including the construction of a competing endogenous RNA (ceRNA) network, Gene Ontology term and Kyoto Encyclopedia of Genes and Genomes pathway analyses, as well as survival analysis, we identified key genes and pathways associated with the diagnosis and prognosis of CRC. We obtained a total of 185 differentially expressed genes, comprising 17 lncRNAs, 30 miRNAs, and 138 mRNAs. The ceRNA network consisted of 17 lncRNAs, 25 miRNAs, and 7 mRNAs. Among the 7 mRNAs involved in the ceRNA network, SLC7A5 and KRT80 were found to be upregulated, while ADIPOQ, CCBE1, KCNB1, CADM2, and CHRDL1 were downregulated in CRC. Further analysis revealed that ADIPOQ and SLC7A5 are involved in the AMPK and mTOR signaling pathway, respectively. In addition, survival analysis demonstrated a statistically significant relationship between ADIPOQ, SLC7A5, and overall survival rates in CRC patients. In conclusion, our findings suggest that downregulation of ADIPOQ and upregulation of SLC7A5 in tumor cells lead to increased mTORC1 activity, reduced autophagy, enhanced angiogenesis, and ultimately contribute to cancer progression and decreased survival in CRC patients.
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- 2024
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41. Protective effects of hydro-alcoholic extract of Zataria multiflora on lipopolysaccharide-induced inflammation and oxidative stress in rat liver.
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Arab Z, Salmani H, Marefati N, Beheshti F, Anaeigoudari A, Shakeri F, Tajmazinani N, and Hosseini M
- Abstract
Objective: Liver is an important player in regulation of body homeostasis. Study investigated the effects of hydro-alcohol extract of Zataria multiflora (ZM) on oxidative damage, level of IL-6 and enzymes of liver in lipopolysaccharide (LPS)-treated rats., Materials and Methods: The rats were distributed into 5 groups: 1) Control; 2) LPS; and 3-5) ZM-Extract (Ext) 50, ZM-Ext 100, and ZM-Ext 200. ZM-Ext groups received 50, 100 and 200 mg/kg of extract 30 min before LPS. Drugs were injected intraperitoneally. The entire period of this project was 17 days. In first three days, only extract was injected and then, ZM was injected along with LPS., Results: LPS increased the level of ALT (Alanine aminotransferase), AST (Aspartate aminotransferase ), ALK-P (Alkaline Phosphatase), IL-6, malondialdehyde (MDA), and nitric oxide (NO) metabolites and lowered thiol, superoxide dismutase (SOD) and catalase (CAT) concentration. ZM extract not only reduced ALT, AST, ALK-P, IL-6, MDA, and NO metabolites concentrations but also increased thiol content, and SOD and CAT levels., Conclusion: Extract of ZM prevented LPS-induced hepatotoxicity. This protective effect was associated with reduction in inflammation and oxidative stress., Competing Interests: The authors have declared that there is no conflict of interest.
- Published
- 2023
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42. Human embryos derived from first polar body nuclear transfer exhibit comparatively abnormal morphokinetics during development.
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Heydari L, Khalili MA, Rahimi AA, and Shakeri F
- Abstract
Objective: Reconstructed oocytes after polar body genome transfer constitute a potential therapeutic option for patients with a history of embryo fragmentation and advanced maternal age. However, the rescue of genetic material from the first polar body (PB1) through introduction into the donor cytoplasm is not yet ready for clinical application., Methods: Eighty-five oocytes were obtained following in vitro maturation (IVM) and divided into two groups: PB1 nuclear transfer (PB1NT; n=54) and control (n=31). Following enucleation and PB1 genomic transfer, PB1 fusion was assessed. Subsequently, all fused oocytes underwent intracytoplasmic sperm injection (ICSI) and were cultured in an incubator under a time-lapse monitoring system to evaluate fertilization, embryonic morphokinetic parameters, and cleavage patterns., Results: Following enucleation and fusion, 77.14% of oocytes survived, and 92.59% of polar bodies (PBs) fused. However, the normal fertilization rate was lower in the PB1NT group than in the control group (56.41% vs. 92%, p=0.002). No significant differences were observed in embryo kinetics between the groups, but a significant difference was detected in embryo developmental arrest after the four-cell stage, along with abnormal cleavage division in the PB1NT group. This was followed by significant between-group differences in the implantation potential rate and euploidy status. Most embryos in the PB1NT group had at least one abnormal cleavage division (93.3%, p=0.001)., Conclusion: Fresh PB1NT oocytes successfully produced normal zygotes following PB fusion and ICSI in IVM oocytes. However, this was accompanied by low efficiency in developing into cleavage embryos, along with an increase in abnormal cleavage patterns.
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- 2023
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43. Comparison of the Effect of Fennel and Evening Primrose Oil on Menopausal Problems and Hormonal Levels: A Randomized Controlled Trial.
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Ghavi F, Shakeri F, Farahnaz H, and Abdolahian S
- Abstract
Background: Using natural oral supplements is one of the methods of complementary medicine that has been widely welcomed in the last decade Since studies have reported contradictory results for effectiveness of herbal medicines during menopause and no other more effective herbal medicine has been suggested yet, the researchers of this study decided to compare the fennel and Evening Primrose Oil (EPO) and their effect on menopause problems and sex hormones., Materials and Methods: The present study was a triple-blinded, controlled clinical trial with 125 participants randomly assigned to. An intervention group received fennel, another intervention group received evening primrose oil, and the placebo group received placebo twice daily for 8 weeks. Pre-intervention and post-intervention results were obtained using hormonal assay and the Menopause Rating Scale (MRS)., Results: In this study, the mean follicle-stimulating hormone (FSH) and estradiol levels changed significantly in the fennel and EPO groups compared to placebo ( p < 0.001). The difference in the mean FSH score between the fennel group and EPO group was not significant ( p = 0.304), but the difference in the mean estradiol level between these groups was significant ( p = 0.043). Moreover, there was a significant difference in the mean MRS score between the intervention groups before the intervention ( p < 0.05). However, the difference in the mean MRS score between the fennel and EPO groups was not significant after the intervention ( p = 0.322)., Conclusions: Consumption of fennel and EPO can significantly change FSH, estradiol, and psychological menopausal symptoms in postmenopausal women., Competing Interests: Nothing to declare., (Copyright: © 2023 Iranian Journal of Nursing and Midwifery Research.)
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- 2023
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44. A Hospital-Based Case-Control Study on Whole- and Refined-Grain Intake and Risk of Stroke.
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Shirani F, Saadatnia M, Shakeri F, Hassanzadeh Keshteli A, Saneei P, and Esmaillzadeh A
- Abstract
Introduction: The aim of the present study was to ascertain the correlation between the intake of whole and refined grains and the risk of stroke in the Iranian adult population., Method: This hospital-based case-control study was conducted at Alzahra University Hospital, Isfahan, Iran, in 2008. The cases (n=195) were stroke patients admitted to the neurology ward, and the controls (n=195) were patients admitted to other wards in this center, with no prior history of cerebrovascular accident or any neurological disorders. The usual dietary intakes of the study participants during the previous year were assessed using a validated semi-quantitative food frequency questionnaire. Whole and refined grains were defined according to the definition of the American Association of Cereal Chemists International; foods that contained at least 8 g per 30 g of their weight were considered as whole grains., Results: The mean age of the case and control groups was 68.0 (±13.5) and 61.5 (±10.5) years, respectively; 40% of the cases and 53.3% of the controls were female. The total intake of whole grains (27.8±4.3 vs. 29.4±3.6 g/d, P=0.77) and refined grains (264±11 vs. 296±13 g/d, P=0.07) was not significantly different between the cases and controls. After adjusting for potential confounders, individuals in the second tertile of refined grain intake had a two-fold higher odds of stroke (OR: 2.02; 95% CI: 1.08-3.71), compared to those in the first tertile. Furthermore, no significant relationships were observed between the consumption of whole grains and the risk of stroke, before or after adjustment for confounding variables. No significant trend was found between the tertiles of refined or whole grain intake and the risk of stroke., Conclusion: The authors did not find a statistically significant association between the intake of whole and refined grains and the risk of stroke. Further prospective studies on the relationship between both whole and refined grains and stroke are warranted., Competing Interests: None of the authors declared potential personal or financial conflicts of interest., (© 2023 Isfahan Cardiovascular Research Center & Isfahan University of Medical Sciences.)
- Published
- 2023
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45. Zataria multiflora and its constituent, carvacrol, counteract sepsis-induced aortic and cardiac toxicity in rat: Involvement of nitric oxide and oxidative stress.
- Author
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Hosseini M, Arab Z, Beheshti F, Anaeigoudari A, Shakeri F, and Rajabian A
- Subjects
- Rats, Male, Animals, Lipopolysaccharides toxicity, Cardiotoxicity drug therapy, Plant Extracts pharmacology, Plant Extracts therapeutic use, Rats, Wistar, Oxidative Stress physiology, Antioxidants pharmacology, Sulfhydryl Compounds pharmacology, Nitric Oxide pharmacology, Sepsis complications, Sepsis drug therapy
- Abstract
Background: Zataria multiflora and carvacrol showed various pharmacological properties including anti-inflammatory and anti-oxidant effects. However, up to now no studies have explored its potential benefits in ameliorating sepsis-induced aortic and cardiac injury. Thus, this study aimed to investigate the effects of Z. multiflora and carvacrol on nitric oxide (NO) and oxidative stress indicators in lipopolysaccharide (LPS)-induced aortic and cardiac injury., Methods: Adult male Wistar rats were assigned to: Control, lipopolysaccharide (LPS) (1 mg/kg, intraperitoneal (i.p.)), and Z. multiflora hydro-ethanolic extract (ZME, 50-200 mg/kg, oral)- and carvacrol (25-100 mg/kg, oral)-treated groups. LPS was injected daily for 14 days. Treatment with ZME and carvacrol started 3 days before LPS administration and treatment continued during LPS administration. At the end of the study, the levels of malondialdehyde (MDA), NO, thiols, and antioxidant enzymes were evaluated., Results: Our findings showed a significant reduction in the levels of superoxide dismutase (SOD), catalase (CAT), and thiols in the LPS group, which were restored by ZME and carvacrol. Furthermore, ZME and carvacrol decreased MDA and NO in cardiac and aortic tissues of LPS-injected rats., Conclusions: The results suggest protective effects of ZME and carvacrol on LPS-induced cardiovascular injury via improved redox hemostasis and attenuated NO production. However, additional studies are needed to elucidate the effects of ZME and its constituents on inflammatory responses mediated by LPS., (© 2023 The Authors. Animal Models and Experimental Medicine published by John Wiley & Sons Australia, Ltd on behalf of The Chinese Association for Laboratory Animal Sciences.)
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- 2023
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46. "Ferula assa-foetida L" or "Foeniculum vulgare"? Which one is more effective in the management of polycystic ovarian syndrome? A randomized, placebo controlled, triple-blinded.
- Author
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Ghavi F, Shakeri F, and Abdolahian S
- Abstract
Objective: There are few evaluation about the effects of Fennel and Ferula on human polycystic ovary syndrome (PCOS). The goals of this study were to evaluate and compare the effectiveness of two medicinal plants of the Apiaceae family (Fennel and Ferula) in management of PCOS., Materials and Methods: The sample size was 47 participants with PCOS who were randomly divided into 3 groups. The Ferula assa-foetida L group received 100 mg of Ferula (n=14), the Foeniculum vulgare group received 46 mg of Fennel (n=15), and the placebo group received placebo twice daily for 3 months (n=14)., Results: Before the intervention, there were no significant differences between groups in terms of clinical parameters, endometrial thickness, or ovarian volume. After the interventions, the number of ovarian follicles was decreased in the Ferula and Fennel groups as compared to the placebo group (p<0.05). The number of ovarian follicles in both ovaries in the Ferula and Fennel group decreased and this decrease was significant in the right side as compared to placebo group. Our findings showed significant changes in dehydroepiandrosterone sulfate (DEHAS) and thyroid-stimulating hormone (TSH) levels after the intervention (p<0.03) between the Ferula and Placebo groups., Conclusion: Since use of Ferula could make significant changes in TSH and DEHAS levels and decrease the number of right and left ovarian follicles compared to Fennel and placebo, it can be concluded that this herbal medicine is more effective than Fennel in managing PCOS., Competing Interests: The authors have declared that there was not any financial or technical relationship with Barij Essence Company in the present study.
- Published
- 2023
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47. Effect of Allium cepa extract on total and differential WBC, TP level, oxidant and antioxidant biomarkers, and lung pathology in ovalbumin-sensitized rats.
- Author
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Shakeri F, Amin F, Marefati N, Roshan NM, Boskabady M, and Boskabady MH
- Subjects
- Rats, Animals, Oxidants metabolism, Ovalbumin, Onions metabolism, Nitrogen Dioxide pharmacology, Rats, Wistar, Lung pathology, Dexamethasone, Biomarkers metabolism, Malondialdehyde pharmacology, Sulfhydryl Compounds pharmacology, Antioxidants pharmacology, Pneumonia pathology
- Abstract
Background: Previous studies have shown that Allium cepa ( A. cepa ) has relaxant and anti-inflammatory effects. In this research, A. cepa extract was examined for its prophylactic effect on lung inflammation and oxidative stress in sensitized rats., Methods: Total and differential white blood cell (WBC) count in the blood, serum levels of oxidant and antioxidant biomarkers, total protein (TP) in bronchoalveolar lavage fluid (BALF), and lung pathology were investigated in control group (C), sensitized group (S), and sensitized groups treated with A. cepa and dexamethasone., Results: Total and most differential WBC count, TP, NO
2 , NO3 , MDA (malondialdehyde), and lung pathological scores were increased while lymphocytes, superoxide dismutase (SOD), catalase (CAT), and thiol were decreased in sensitized animals compared to controls (p < 0.01 to p < 0.001). Treatment with all concentrations of extract significantly improved total WBC, TP, NO2 , NO3 , interstitial fibrosis, and emphysema compared to the S group (p < 0.05 to p < 0.001). Two higher concentrations of the extract significantly decreased neutrophil and monocyte count, malondialdehyde, bleeding and epithelial damage but increased lymphocyte, CAT, and thiol compared to the S group (p < 0.05 to p < 0.001). Dexamethasone treatment also substantially improved most measured parameters (p < 0.05 to p < 0.001), but it did not change eosinophil percentage. It was proposed that A. cepa extract could affect lung inflammation and oxidative stress in sensitized rats., Competing Interests: No conflict of interest.- Published
- 2023
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48. A novel serum extracellular vesicle protein signature to monitor glioblastoma tumor progression.
- Author
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Tzaridis T, Weller J, Bachurski D, Shakeri F, Schaub C, Hau P, Buness A, Schlegel U, Steinbach JP, Seidel C, Goldbrunner R, Schäfer N, Wechsler-Reya RJ, Hallek M, Scheffler B, Glas M, Haeberle L, Herrlinger U, Coch C, Reiners KS, and Hartmann G
- Subjects
- Humans, Histones, Blood Proteins, Integrin beta1, Glioblastoma, Extracellular Vesicles
- Abstract
Detection of tumor progression in patients with glioblastoma remains a major challenge. Extracellular vesicles (EVs) are potential biomarkers and can be detected in the blood of patients with glioblastoma. In our study, we evaluated the potential of serum-derived EVs from glioblastoma patients to serve as biomarker for tumor progression. EVs from serum of glioblastoma patients and healthy volunteers were separated by size exclusion chromatography and ultracentrifugation. EV markers were defined by using a proximity-extension assay and bead-based flow cytometry. Tumor progression was defined according to modified RANO criteria. EVs from the serum of glioblastoma patients (n = 67) showed an upregulation of CD29, CD44, CD81, CD146, C1QA and histone H3 as compared to serum EVs from healthy volunteers (P value range: <.0001 to .08). For two independent cohorts of glioblastoma patients, we noted upregulation of C1QA, CD44 and histone H3 upon tumor progression, but not in patients with stable disease. In a multivariable logistic regression analysis, a combination of CD29, CD44, CD81, C1QA and histone H3 correlated with RANO-defined tumor progression with an AUC of 0.76. Measurement of CD29, CD44, CD81, C1QA and histone H3 in serum-derived EVs of glioblastoma patients, along with standard MRI assessment, has the potential to improve detection of true tumor progression and thus could be a useful biomarker for clinical decision making., (© 2022 The Authors. International Journal of Cancer published by John Wiley & Sons Ltd on behalf of UICC.)
- Published
- 2023
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49. Deficiency for SAMHD1 activates MDA5 in a cGAS/STING-dependent manner.
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Schumann T, Ramon SC, Schubert N, Mayo MA, Hega M, Maser KI, Ada SR, Sydow L, Hajikazemi M, Badstübner M, Müller P, Ge Y, Shakeri F, Buness A, Rupf B, Lienenklaus S, Utess B, Muhandes L, Haase M, Rupp L, Schmitz M, Gramberg T, Manel N, Hartmann G, Zillinger T, Kato H, Bauer S, Gerbaulet A, Paeschke K, Roers A, and Behrendt R
- Subjects
- Mice, Animals, SAM Domain and HD Domain-Containing Protein 1 genetics, Immunity, Innate genetics, Membrane Proteins metabolism, Nucleotidyltransferases metabolism, Interferon Type I metabolism, Nucleic Acids
- Abstract
Defects in nucleic acid metabolizing enzymes can lead to spontaneous but selective activation of either cGAS/STING or RIG-like receptor (RLR) signaling, causing type I interferon-driven inflammatory diseases. In these pathophysiological conditions, activation of the DNA sensor cGAS and IFN production are linked to spontaneous DNA damage. Physiological, or tonic, IFN signaling on the other hand is essential to functionally prime nucleic acid sensing pathways. Here, we show that low-level chronic DNA damage in mice lacking the Aicardi-Goutières syndrome gene SAMHD1 reduced tumor-free survival when crossed to a p53-deficient, but not to a DNA mismatch repair-deficient background. Increased DNA damage did not result in higher levels of type I interferon. Instead, we found that the chronic interferon response in SAMHD1-deficient mice was driven by the MDA5/MAVS pathway but required functional priming through the cGAS/STING pathway. Our work positions cGAS/STING upstream of tonic IFN signaling in Samhd1-deficient mice and highlights an important role of the pathway in physiological and pathophysiological innate immune priming., (© 2022 Schumann et al.)
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- 2023
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50. Development and evaluation of 89 Zr-trastuzumab for clinical applications.
- Author
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Mohammadpour-Ghazi F, Yousefnia H, Divband G, Zolghadri S, Alirezapour B, and Shakeri F
- Abstract
Objectives: Due to the suitable physical characteristics of
89 Zr as a PET radionuclide and affinity of Trastuzumab monoclonal antibody against HER2, [89 Zr]Zr-Trastuzumab was prepared and went through preclinical evaluations for ultimate human applications., Methods:89 Zr was produced by using89 Y(p,n)89 Zr reaction at a 30 MeV cyclotron (radionuclide purity>99.9%, specific activity of 17 GBq/µg). p-SCN-Bn-Deferoxamine (DFO); was conjugated to trastuzumab, followed by labeling with89 Zr in oxalate form at optimized condition. Cell binding, internalization and, radioimmuno-activity assays were studied using HER2+ BT474 and HER2- CHO cell lines. Finally, the biodistribution of the radioimmunoconjugate was assessed in normal and HER2+ BT474 tumor-bearing mice using tissue counting and imaging at different intervals after injection. Also, a woman with HER2-positive metastatic breast cancer under treatment with Herceptin underwent both [89 Zr]Zr-Trastuzumab and, [18 F]FDG PET/CTs., Results:89 Zr was produced with high radionuclidic and radiochemical purities (>99%) and [89 Zr]Zr-DFO-Trastuzumab was prepared with radiochemical purity of >98% and specific activity of 9.85 GBq/µmol. The radioimmunoconjugate was stable both in PBS buffer and in human serum for at least 48 h. The radioimmunoactivity assay demonstrated about 70% of [89 Zr]Zr-DFO-Trastuzumab is bound to the BT474 cells at the number of 250×106 cells. Cell binding studies showed that about 28% of radioimmunoconjugate is attached to BT474 cells after 90 min. Internalization studies showed that 50% of [89 Zr]Zr-Trastuzumab is internalized to BT474 cells only in 6 h. The biodistribution study of the labeled compound in normal mice demonstrated the same pattern of the monoclonal antibodies which is entirely different from the biodistribution of free89 Zr. Biodistribution and imaging studies in tumor-bearing mice showed the significant uptake values of [89 Zr]Zr-Trastuzumab in tumor sites. [89 Zr]Zr-Trastuzumab PET/CT revealed metastatic lesions documented previously with [18 F]FDG PET/CT scan in a woman with breast cancer who was under treatment with Herceptin. Although the [18 F]FDG PET/CT scan had better quality images, the valuable and unique advantage of [89 Zr]Zr-Trastuzumab PET/CT is delineating HER2+ metastasis, which is essential in diagnosis and HER2-based treatments., Conclusion: The prepared [89 Zr]Zr-Trastuzumab has a high potential radio-pharmaceutical for immune-PET imaging of the patients with HER2+ tumors.- Published
- 2023
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