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      • KCI등재

        Arterial Compliance and Vitamin E Blood Levels with a Self Emulsifying Preparation of Tocotrienol Rich Vitamin E

        Aida Hanum Ghulam Rasool,Abd. Rashid Abd. Rahman,Kah Hay Yuen,Abdul Rahim Wong 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.9

        The tocotrienol vitamin E has potent antioxidant property, however absorption is low due to high lipid solubility. A self emulsifying preparation of tocotrienol rich vitamin E (SF-TRE) had been reported to increase their bioavailability. This randomized, placebo controlled, blinded end point clinical study aimed to determine the effects of 50, 100 and 200 mg daily of SF-TRE and placebo for two months on arterial compliance and vitamin E blood levels. Assessment of arterial compliance by carotid femoral pulse wave velocity (PWV) and augmentation index (AI), plasma vitamin E, serum total cholesterol and low density lipoprotein cholesterol were taken before and after 2 months’ treatment in 36 healthy males. Un-supplemented tocotrienol levels were low, after treatment, all SF-TRE treated groups had significantly higher plasma α, δ and δ tocotrienol concentrations compared to placebo. Augmentation index change from baseline to end of treatment for groups placebo, 50, 100, and 200 mg were 2.22±1.54, -6.59±2.84, -8.72±3.77, and -6.27±2.67% respectively (p=0.049, 0.049, and 0.047 respectively). Groups 100 and 200 mg showed significant improvement after treatment with pulse wave velocity reductions of 0.77 m/s and 0.65 m/s respectively (p=0.007 and p=0.002). There was no effect of SF-TRE on serum lipids. We conclude that there was a trend towards improvement in arterial compliance with 2 months’ of SF-TRE.

      • KCI등재

        Push-out Tests on a New Shear Connector of I-shape

        Aida Mazoz,Abdelkader Benanane,Messaoud Titoum 한국강구조학회 2013 International Journal of Steel Structures Vol.13 No.3

        In steel-concrete composite beams, the shear connectors are commonly used to transfer the longitudinal shear forces across the steel-concrete interface. This paper summarizes the results of 24 push-out test specimens with a new type of shear connector called “I-shape connector”. The test specimens were designed to study the effect of the following parameters on the ultimate load capacity: the height of I-shape connector, the length of I-shape connector, the compressive strength of concrete and the number of transverse reinforcing bars. The experimental results are presented and discussed, focusing on the failure modes and load-slip behaviour. Finally, the experimental results are compared to the existing design equations to predict the ultimate load capacity of I-shape shear connectors.

      • KCI등재

        Characterization of the produced electrospun fish gelatin nanofiber containing fucoxanthin

        Aida Azarshah,Marzieh Moosavi-Nasab,Mohammad Khorram,Sedigheh Babaei,Najmeh Oliyaei 한국식품과학회 2023 Food Science and Biotechnology Vol.32 No.3

        This study aims to prepare fish gelatin nanofibers extracted from fish waste by using electrospinning method and its encapsulation with fucoxanthin extracted from macroalgae Sargassum angustifolium. Four concentrations of gelatin and two concentrations of fucoxanthin were used under different voltage for preparing the nanofibers. The optimal conditions for producing the nanofibers were considered as 30%, 10 cm, 12 kV, and 5% for fish gelatin concentration, distance, voltage, and fucoxanthin, respectively. The average thickness of nanofibers was estimated 198 ± 0.073 nm. The FTIR results confirmed the presence of functional groups between fucoxanthin and gelatin. The loading efficiency of fucoxanthin in nanofibers and the free radical scavenging of DPPH were calculated 91% and 62%, respectively. Further, these nanofibers showed the antibacterial properties against bacteria. Based on the results, the fish gelatin nanofibers containing fucoxanthin can be proposed as a suitable coating for using in the food packaging industry.

      • KCI등재

        MiR-4492, a New Potential MicroRNA for Cancer Diagnosis and Treatment: A Mini Review

        Aida Alizamir,Mohammad Amin Amini,Ashkan Karbasi,Mehdi Beyrami 전남대학교 의과학연구소 2024 전남의대학술지 Vol.60 No.1

        There is no doubt that the incidence of cancer sufferers is rising in the world, and it is estimated that in the next several decades, the number of people suffering from malignancies or the cancer rate will double. Diagnostic and therapeutic targeting of noncoding RNAs (ncRNAs), especially microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), represent an excellent approach for cancer diagnosis and treatment, as well as many other diseases. One of the latest miRNAs is miR-4492, upregulating some genes in tumor tissues including ROMO1, HLA-G, NKIRAS2, FOXK1, and UBE2C. It represents an attractant example of a miRNA acting at multiple levels to affect the same malignancy hallmark. Based on the studies, miR-4492 plays a key role in several cancers such as, breast cancer, bladder cancer, osteosarcoma, glioblastoma multiforme, hepatocellular carcinoma, colorectal cancer, and ovarian cancer. Putting it all together, identifying the precise mechanisms of miR-4492 in the pathogenesis of cancer, could pave the way to find better diagnostic and therapeutic strategies for cancer sufferers. For this reason, it might be a novel potential diagnostic biomarker and therapeutic target for neoplasms.

      • KCI등재

        Factors Influencing InformationSystemsAdoption: A Review of the Literature

        Aida Hakemi,Maslin Masrom 한국인터넷방송통신학회 2019 International Journal of Internet, Broadcasting an Vol.11 No.2

        For the last two decades, a number of information systems are developed for various aims, depending on business’ needs. There are a lot of organizations in the world which are using information systems in their environment, such as telecommunications organizations,universitiesand banks. Using informationsystemhas become crucial for most oforganizations regarding withincreasing the performance of work procedures and improve productivity and efficiency in general. There are many different models that have been designed and validated to explain the effect of constructs on the adoption of technologies. The aim of this research is to review the literature on information systems adoption and to analyze the different types of models which are frequently applied by researchers in their efforts to examine the factors that estimate the adoption of technologies. The research explores information systems adoption literature that focuses on development models.

      • KCI등재

        The Relationship between Serum Vitamin C and Uric Acid Levels, Antioxidant Status and Coronary Artery Disease: a Case-Control Study

        ( Aida Torkzaban ),( Amirmansour Alavi Naeini ),( Akbar Hassanzadeh ),( Mehrdad Namdari ) 한국임상영양학회 2020 Clinical Nutrition Research Vol.9 No.4

        Coronary artery disease (CAD) is among the main causes of death in adults. Increase of oxidative stress and defects in antioxidant defense play a major role in endothelium performance and are affecting factors in the progress of atherosclerosis. The aim of this study was to measure serum levels of uric acid (UA) and vitamin C as well as the antioxidant status in patients with CAD, and compared them with those in healthy individuals. The present case-control study was performed on 44 cases and 44 controls. Demographic data and anthropometric indices were measured. The Food Frequency Questionnaire (FFQ) and International Physical Activity Questionnaire (IPAQ) were completed. After 12 hours of fasting,10 mL blood was sampled from the participants. Serum levels of UA, vitamin C, Total Antioxidant Capacity (TAC) and Malondialdehyde (MDA) were also measured. The data were finally analyzed by SPSS v22. A significant difference was observed between the groups in terms of UA and vitamin C. However, mean levels of MDA and TAC were not significantly different between groups. The differences between groups in terms of vitamin A, vitamin E, beta-carotene, zinc and selenium intakes were not significant either. A significant difference was detected between the groups in terms of vitamin C intake. Our results suggest that increase in UA and decrease in vitamin C in serum levels can be considered as risk factors for CAD patients. Due to a lack of any significant correlation between TAC and CAD risk in this study, further study with bigger sample size is needed.

      • SCOPUSKCI등재

        Beneficial effects of intraovarian injection of platelet-rich plasma in women with poor ovarian response

        Aida Najafian,Ashraf Alyasin,Marziyeh Aghahosseini,Sedigheh Hosseinimousa,Seyyedeh Neda Kazemi The Korean Society for Reproductive Medicine 2023 Clinical and Experimental Reproductive Medicine Vol.50 No.4

        Objective: Infertility can result from a diminished ovarian reserve, but a potential remedy exists in the form of platelet-rich plasma (PRP) administration. This treatment involves both biological factors and tissue trauma mechanisms, which stimulate folliculogenesis, making it a promising and effective strategy. We assessed the impact of direct PRP injections into the ovaries on the fertility outcomes of women classified as poor responders. Methods: A quasi-experimental study was conducted from April 2021 to December 2022, focusing on patients classified as POSEIDON grade 3 or 4. PRP injections were administered into both ovaries. After 3 months, data were collected on anti-Mullerian hormone (AMH) level, follicle-stimulating hormone (FSH) level, and the numbers of oocytes, mature oocytes, and good-quality embryos following ovarian stimulation. We then compared the data from before and after PRP injection. Results: This study included 50 women, with a mean of 39 years (interquartile range [IQR], 35 to 43) and 4 years (IQR, 2 to 6) for age and infertility duration, respectively. FSH levels decreased after treatment, while AMH levels and the numbers of oocytes, metaphase II oocytes, and high-quality embryos increased. However, only the increase in high-quality embryos was significant. The pregnancy and spontaneous pregnancy rates were 20% and 14%, respectively. Notably, women with secondary infertility exhibited a significantly higher pregnancy rate than those with primary infertility. Conclusion: Ample evidence suggests that PRP can enhance ovarian function. However, further studies are needed to identify the appropriate candidates for this procedure, establish the optimal PRP preparation method, and standardize the procedure for its adjuvant use in assisted reproductive technology cycles.

      • KCI등재

        The effect of fuel type and calcination temperature on the structure and morphology of fabricated nano-cordierite based on gel-combustion method

        Aida Rahmani,Arman Sedghi 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.10

        The aim of this study is to evaluate the influence of fuel type and temperature on the synthesis of nano-cordierite powder bygel combustion method. Two different fuels, urea and citric acid, along with silica fume and metal nitrates, as an oxidant, areused to prepare nano-cordierite powder. Ignited samples are calcinated in different temperatures and characterized bydifferent analytical techniques such as thermal analysis (TG-DTA), X-ray Diffractometer (XRD), Fourier transform infraredspectroscopy (FTIR) and field emission electron microscope (FE-SEM). The Debye-Scherer formula is used to calculate theaverage crystallite size. Although Analysis of XRD spectrum shows that α–cordierite nano-crystalline phase is formedcompletely, a minor spinel impurity phase is found in the structure. The average crystallite sizes calculated by FWHM areabout 47 to 87 nm. Morphology of powders are identified by FESEM analysis. While the results of implemented method showthat the particle size of powders is in nano-meter range, most of them are agglomerated.

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