Cancer tissue and cell culture
Kimia Farokhi Bahar; Azadeh Hekmat
Abstract
Introduction and aim: Palm oil (PO) is the second largest vegetable oil in the world and contains large quantities of phytochemicals, for example, vitamin E, carotenoids, and phytosterols. This study aimed to investigate the effect of Palm oil on the cellular growth of K652 blood cancer, as a model of ...
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Introduction and aim: Palm oil (PO) is the second largest vegetable oil in the world and contains large quantities of phytochemicals, for example, vitamin E, carotenoids, and phytosterols. This study aimed to investigate the effect of Palm oil on the cellular growth of K652 blood cancer, as a model of cancer cells.Methods: In this study, K562 leukemia cells were treated with concentrations of 5, 25, 50, 75, and 100 µg per mL of PO for 24 and 48 hours. MTT assay, NAC assay, and microscopic observations were used to evaluate cell changes and cell death/survival.Results: PO at concentrations above 5 μg per ml induced significant cell death. Microscopic observations also confirmed cell death in cells that were treated with PO. Also, the rate of inhibition of cell growth of PO after 24 hours was more than 48 hours. After NAC treatment, 81% cell survival was observed (P <0.001).Conclusion: According to the results of this study, PO has a great inhibitory effect on K562 leukemia cells and could be a good candidate for cancer therapy.
Biophysics and Cancer
Azadeh Hekmat; Setareh Zahedian
Abstract
Introduction and aim: Cold atmospheric plasma (CAP) is a new anti-cancer therapeutic method in the field of plasma medicine, with high selectivity to kill cancer cells more than normal cells. In recent years plasma-activated solutions, specifically plasma-activated medium (PAM) have also shown their ...
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Introduction and aim: Cold atmospheric plasma (CAP) is a new anti-cancer therapeutic method in the field of plasma medicine, with high selectivity to kill cancer cells more than normal cells. In recent years plasma-activated solutions, specifically plasma-activated medium (PAM) have also shown their selective anti-cancer effect, like direct CAP treatment. Different sources produce plasma, and the purpose of this research was to investigate the effect of various plasma production devices on the growth of MCF-7 breast cancer cells.Methods: The effect of PAM produced from three different sources of cold atmospheric plasma on the human breast cancer cell line (MCF-7) was compared using the MTT test. Results: The cells treated with PAM of the Parla plasma jet in 1, 2, 3, and 4 minutes decreased the viability of the cells by 35%, respectively. The cells treated with PAM of electric charge discharge plasma device caused significant cell death, but the culture cells treated with PAM of argon plasma jet device did not affect cell survival.Conclusion: The present findings showed that the type of cold atmospheric plasma source is effective on cell survival rate.
Animal cell and culture
Talie Esmaeeli; Ramazan Khanbabaee; Azadeh Hekmat
Abstract
Background and Aim: Noise pollution is one of the hazardous factors in the environment. One of the major sources of this sort of pollution is the noise produced by urban transportation, mostly subway and business centers. In this study, the noise pollution effects on the histopathological changes in ...
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Background and Aim: Noise pollution is one of the hazardous factors in the environment. One of the major sources of this sort of pollution is the noise produced by urban transportation, mostly subway and business centers. In this study, the noise pollution effects on the histopathological changes in the liver and kidney of Wistar male rats were investigated.Materials and Methods: Rats were arranged in 3 groups (control, and experimental, n=6). The control group was kept in the standard situation and the experimental groups were kept in Tehran grand bazaar and around sadeghiyeh metro station (west rose street). After eight weeks all animals were euthanized via cervical dislocation and tissue samples stained with hematoxylin and eosin for histopathology evaluation. Results: In the samples of all the rats located around Sadeghiyeh subway and Tehran's grand bazaar, there is no difference in kidney volume between the control and experimental groups. Nonetheless the destruction of hepatocytes and cell degeneration around the central vein in liver tissue were observed in group placed around Sadeghiyeh subway.Conclusion: The results of this study showed that noise pollution in the two areas of Tehran's grand bazaar and Sadeghiyeh subway causes changes in liver tissue. Consequently, control and correction measures to reduce noise in these areas seem necessary.
Animal cell and culture
Zeynab Akbarkashani; Azadeh Hekmat; Seyed Mohammad Atyabi
Volume 2, Issue 1 , August 2021, , Pages 15-20
Abstract
Introduction and Aim: Human chorionic gonadotropin (hCG) is a glycoprotein produced during pregnancy by trophoblast and placental syncytiotrophoblast cells. The produced hCG hormone affects the corpus luteum and prevents it from being destroyed. Studies show that diamond nanoparticles (NDs) interact ...
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Introduction and Aim: Human chorionic gonadotropin (hCG) is a glycoprotein produced during pregnancy by trophoblast and placental syncytiotrophoblast cells. The produced hCG hormone affects the corpus luteum and prevents it from being destroyed. Studies show that diamond nanoparticles (NDs) interact with biological systems such as proteins, enzymes, and antibodies. In other words, NDs are capable of being absorbed by biomolecules and can also be used as a carrier for the transport of biologically active substances. This study aimed to investigate the effect of NDs on hCG structure and on hCG level in Wistar rats.Methods: The effect of 10 nm NDs on the structure of hCG was investigated using spectroscopic techniques. Rats were randomly divided into five groups: Control, sham, and experimental groups (received NDs solution at doses of 25, 75, and 100 mg/ml). Injections were carried out twice a week. Then, serum biochemical parameters were calculated. Data were analyzed utilizing one-way ANOVA followed by Tukey's multiple comparisons test.Results: The results showed that NDs could form a complex with hCG. The zeta potential and DLS results showed that NDs cause a decrease in the surface charge and size of hCG. Administration of NDs in concentrations of 100 mg/ml significantly decreased hCG levels compared with that of control samples (P<0.05),Conclusion: Based on the investigation NDs could change the tertiary structure of hCG. NDs had toxic effects on hCG function. More studies to explore the toxic effects of NDs in various doses and times of exposure seem to be necessary.
Animal cell and culture
Kazem Parivar; Shahin Shakiba; Azadeh Hekmat
Volume 1, Issue 3 , March 2021, , Pages 25-32
Abstract
Introduction and Aim: Widespread consumption of cell phones is the most crucial risk factor f human health in the age of technology. This study aimed to explore the effects of 4G mobile phone radiation on the level of spermatogenesis in male rats in 30 days. Methods: In this laboratory experimental study, ...
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Introduction and Aim: Widespread consumption of cell phones is the most crucial risk factor f human health in the age of technology. This study aimed to explore the effects of 4G mobile phone radiation on the level of spermatogenesis in male rats in 30 days. Methods: In this laboratory experimental study, the male NMRI rats were divided into 3 groups: the control group (without exposure to 4G mobile phone for 30 days continuously), the sham group (exposure to 4G mobile phones, but no call within 30 days), and the experimental group (exposure to 4G cellular mobile (SAR=0.482 W/Kg, 1800 MHZ) during calls in progress for 30 days). All rats were sacrificed after 30 days and their organs (testicular and epididymis) were separated. Results: The mean spermatid count and the mean leydig cells count was decreased significantly (p < 0.001) after exposure time. However, the mean count of spermatogonia was not changed, significantly. Also, the study of micrographs indicated the morphology of testis and epididymis changed. The testicular size changed (p < 0.001), however, the testicular weight was not changed, significantly. Conclusion: The exposure of 4G mobile waves decreased spermatogenesis. Our results warrant further inquiries on the potential effects of electromagnetic field (EMF) from mobile phones on male fertility.
Virology and Viral transport medium
Azadeh Hekmat
Abstract
Humans have been battling viruses since before our species had even evolved into its modern form. some viruses are equally deadly, and some that are even deadlier. Accurate and early detection of viruses is often crucial for clinical diagnosis and therapy. Aptamers are the artificial single-stranded ...
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Humans have been battling viruses since before our species had even evolved into its modern form. some viruses are equally deadly, and some that are even deadlier. Accurate and early detection of viruses is often crucial for clinical diagnosis and therapy. Aptamers are the artificial single-stranded DNA, RNA sequences, or peptides that can bind to certain targets with tremendously high specificity. A number of their unique features make them a more effective choice than antibodies. Aptamers are typically generated through Systematic Evolution of Ligands by Exponential enrichment (SELEX) and screened and selected via in vitro process from a library, making it possible to attach to any target molecules. In this review, aptamers were briefly defined and their applications in the rapid detection and diagnosis of some deadly viruses (HIV, Ebola, IVA, IVB, HPV, SARS-CoV, MERS-CoV, and COVID-19) were described.
Medical Genetics
Ani Dejakam; Ani Dejakam; Azadeh Hekmat
Volume 1, Issue 1 , September 2020, , Pages 16-25
Abstract
Introduction and Aim: Opium addiction is one of the most prevalent addiction in Iranian society. Throughout the last two decades, congress 60; a nongovernmental organization; has been operated a taper off treatment of opium associated with a package of psychological treatment group classes. Although ...
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Introduction and Aim: Opium addiction is one of the most prevalent addiction in Iranian society. Throughout the last two decades, congress 60; a nongovernmental organization; has been operated a taper off treatment of opium associated with a package of psychological treatment group classes. Although the effectiveness of the taper off method in opium addiction has been verified, molecular mechanisms involved in this treatment have not explained. BDNF gene is a brain-derived neurotrophic factor that is associated with numerous molecular mechanisms of the brain including memory. Methods: In this research, peripheral blood samples from 21 patients were collected from Congress 60. RNA was extracted from each sample, reverse transcribed and amplified via RT-PCR technique, utilizing specific primers for BDNF. The production of BDNF protein was also analyzed employing the western blotting technique. Results: Our results exhibited considerable down expression of BDNF in addict persons vs. non-psychiatric persons (p < /em><0.01). Furthermore, BDNF expression levels in addicts increased significantly after the therapy period. Findings showed the effect of opium abuse and taper off treatment on the expression of BDNF. Conclusion: The present study could help to a better understanding of molecular and neurological mechanisms of opium and taper off treatment. Additionally, BDNF level detection could be a potential marker for screening the effectiveness of various types of addiction treatment.
