Showing 12 results for Kia
S Ahmady- Asbchin, A Nasrolahi Omran, N Jafari, Mj Mostafapour, S.m Kia,
Volume 6, Issue 2 (Autumn- Winter [PERSIAN] 2012)
Abstract
Abstract
Background and Objectives: Concurrent with the development of new chemical drugs and antibiotics, their harmful effects are gradually emerged. Due to lack of harmful effects, herbal medicines have been used in the pharmaceutical industry. The aim of this study was the use of lavender essential oil as an herbal medicine for the replacement of antibiotics and chemicals.
Material and Methods: In this study, the plant essential oil was isolated by drying and distillation method using Clevenger apparatus. The antibacterial effect of this plant was evaluated by using disc diffusion method and successive dilutions. In order to control the standard of the method, antibiotic discs and standard bacterial strains were used.
Results: Based on the results, Proteus mirabilis and Enterococcus faecalis are , respectively , the most sensitive and most resistant bacteria to dilutions of 1, 1/2 and 1/4. Escherichia coli and Enterococcus faecalis, respectively, are the most sensitive and most resistant bacteria to the dilution of 1/8, 1/16, 1/32 and 1/64. MIC and MBC methods also show that all bacteria have the same minimum inhibitory and fatality concentrations except Enterococcus faecalis with minimum inhibitory concentration of 16/1 and minimum concentration fatality of 8/1. Evaluating the results of the disk diffusion method with antibiotic discs, we can observe the better effect of this plant in comparison with gentamicin and streptomycin discs on the growth of five strains of Staphylococcus aureus ATCC1885, Staphylococcus epidermidis ATCC 2405, Enterococcus faecalis ATCC2321, Escherichia coli ATCC 1652 and Proteus mirabilis ATCC 2601.
Conclusion: the essential oil of Lavender can be used instead of chemical drugs to treat bacterial infections.
Keywords: Lavandula, Anti-bacterial effects, Essential oils, Bacterium
Mr Kiaei, M Hedayatmofidi, F Koohsar, A Amini, S Hoseinzadeh, A Mirbazel, Z Hesari,
Volume 8, Issue 1 (spring[PERSIAN] 2014)
Abstract
Abstract
Background and Objective: C - reactive protein (CRP) is an acute phase protein produced in liver. It is less than 5 mg per deciliter in the serum and body fluids of normal individuals, but it is increased suddenly within a few hours following inflammatory reaction. In bacterial and viral infections, active rheumatic fever, acute myocardial infarction and rheumatoid arthritis are also increased. The aim of this study was to investigate CRP level by Qualitative and Quantitative methods.
Material and Methods: The CRP of 200 patients was investigated by quantitative and qualitative methods. Qualitative CRP testing was conducted three times by different people, using two kit of bionic and Omega, and then the mean of the results was reported. For quantitative CRP testing, Immunoturbidimetry was used.
Results: In qualitative CRP test by Bionic kit: 180 (90%) were negative, 6 (3%) weakly positive, 9 (4.5%) +1 and 5 (2.5 %) were + 2. In qualitative CRP test by Omega Kit: 148 (74%) were negative, 32 (16%) weakly positive, 13 (6.5%) +1, 4 (2%) +2 and 3 (1.5%) were +3. A high percentage of Qualitative results, which were weakly positive, became negative by Quantitative methods. The Qualitative results of +1 and the next became positive by Quantitative methods.
Conclusion: It seems that in the early stages of inflammatory disease, quantitative methods are preferred to qualitative methods. Also, in cases that the CRP test results are weakly positive by qualitative methods, they should be controlled by quantitative methods too.
Keywords: CRP CRP Test Quantitative Qualitative CRP Test
Ayatollahi, Aa, Amini, A, Rahimi, S, Kiaei, M, Koohsar, F, Khandan Del, A,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract
Background and Objective: Nosocomial infection is one of the main factors of mortality in hospitals . One of the most important measures to control infection in hospitals is sampling of equipment and culturing the samples . This study aimed to investigate the prevalence of gram-negative bacilli obtained from the equipment of the hospital wards .
Material and Methods: This Descriptive study was carried out on 488 specimens taken from medical and non-medical devices and equipment of various wards, via census sampling. the samples taken by sterile swabs in Tryptic Soy Broth (TSB) were inoculated in blood agar and Eosin-Methylene Blue agar, and by biochemical standard tests the isolated colonies were identified.
Results: Of 488 isolates, 157 (32.17%) were positive for the presence of gram-negative bacilli. The highest bacterial contamination was related to Enterobacter (37.58%). Of hospital wards, the highest infection related to the surgical wards (19.75%), and the highest contamination is related to laryngoscope blades (12.74%) and ECG sensor device and the monitoring interface (7%).
Conclusion: Microbial infection with gram-negative bacilli is an overwhelming condition in hospital equipment.
Key Words: Gram Negative Bacilli, Nosocomial Infection, hospital wards, hospital equipments, Gorgan
Sakine Tale Hel Abad , Hamid Reza Joshaghani , Mojgan Nejabat , Hadi Rahimzadeh , Farhad Niknejad , Mohammad Reza Kiaie,
Volume 10, Issue 1 (Jan,Feb 2016 2016)
Abstract
ABSTRACT
Background and Objective: Ochratoxin is a fungal toxin produced by Penicillium verrucosum and some Aspergillus species. Ochratoxin is usually found in grains, cereal products and also animal feed of livestock. The aim of this study was to measure the level of Ochratoxin in pasteurized milk samples of Golestan Province, Iran.
Methods: Overall, 38 milk samples were collected from East and West of the Golestan province in accordance with standards 326 and 419 of the Institute of Standards and Industrial Research of Iran. The level of Ochratoxin was measured by ELISA method.
Results: The mean level of Ochratoxin A in 20 raw milk samples collected from the West of the Province was 3.32 ± 3.76 ng/ml. The mean level of Ochratoxin A in 18 raw milk samples collected from the East was 6.02 ± 4.42 ng/ml. Ochratoxin A levels in most samples were higher than the limits established by the European standards.
Conclusion: Based on the results of this study, Ochratoxin level of 84.2% and 52.6% of the samples from the West and East of the province are higher than the allowed limits (2 ng/ml), respectively.
Negin Rezavand, Asad Vaisi-Raygani, Firozeh Vaisi, Maryam Zangneh , Azin Hoshiar , Fariborz Bahrehmand, Amir Kiani, Gholamabass Dinarvand ,
Volume 10, Issue 4 (Jul-Aug 2016 2016)
Abstract
ABSTRACT
Background and Objective: Nutritional factors and activation of inflammatory pathways are thought to be involved in pathogenesis of preeclampsia in pregnant women. The present study aimed to compare the serum levels of vitamin D and interleukin-6 in healthy pregnant women with those of preeclampsia ones.
Methods: This case-control study was performed on 120 healthy pregnant women and 120 women with preeclampsia referred to Imam Reza Hospital in Kermanshah. The serum levels of vitamin D and IL-6 were measured by ELISA method. The data was analyzed by SPSS software (version 20) using independent t-test, the P-value of <0.05 was considered as statistically significant.
Results: There was no statistically significant difference between the mean level of vitamin D in the patients (37.64 ± 29.50 ng/ml) and the controls (40.06 ± 33.20 ng/ml). the serum level of IL-6 in patients with preeclampsia (21.71 ± 32.24 pg/ml) was significantly higher compared to that of control group (15.04 ± 28.6 pg/ml) (P <0.001).
Conclusion: Based on the findings of this study, inflammatory factors and cytokines such as IL-6 can be considered as risk factor for preeclampsia. However, more studies with larger sample sizes are required to further evaluate the association of vitamin D levels and risk of preeclampsia.
Keywords: Pregnancy, Pre-Eclampsia, Vitamin D, Interleukin-6.
Maedeh Kiani Abri , Monir Doudi , Ali Mohammad Ahadi ,
Volume 12, Issue 3 (May-Jun 2018)
Abstract
ABSTRACT
Background and Objectives: Keratinase is an enzyme commonly used in the production of detergents, cosmetics, drugs, leather, and other industries. Considering the high cost of traditional methods for decomposition of feather, hair, hooves, nails, and wool that contain high levels of keratin, their biodegradation with keratinase-producing bacteria can be a valuable solution. The present study aimed for isolation and molecular identification of keratinase-producing bacteria in Qeshm Island and Peyposht village in Iran.
Methods: Water and sludge samples from the Qeshm Island and Peyposht village were collected. The bacteria isolates were screened for keratinase production using the Lowry method. Effect of pH and temperature was assessed on the production of keratinase and on the growth of the isolates. Colony-polymerase chain reaction was used for molecular identification of the isolates.
Results: Bacillus berevis and Enterobacter cloacae were isolated in this study. Keratinase production in B. berevis was highest at pH 7.5 and 35 °C. In addition, the highest level of enzyme production by E. cloacae was observed at pH 7 and 37 °C.
Conclusion: It seems that the bacterial strains isolated from sludge in the study area have relatively favorable keratinase production capacity.
Keywords: Bacteria, Colony PCR, Identification, Keratinolytic protein, Sewage.
Hamid Asadzadeh Aghdaei , Zahra Pezeshkian, Meghdad Abdollahpour-Alitappeh , Ehsan Nazemalhosseini Mojarad , Mohammad Reza Zali,
Volume 12, Issue 4 (Jul-Aug 2018)
Abstract
ABSTRACT
Colorectal cancer remains a leading cause of morbidity and mortality worldwide. Most colorectal cancers begin as a growth of tissue called a polyp, some types of which can change into cancer over the course of several years. Angiogenesis, the formation of new blood vessels, is known to play a key role in the initiation, growth and progression of polyp and colorectal cancer. In this review, we discuss the mechanisms involved in colorectal cancer and polyp angiogenesis.
Keywords: Colorectal Neoplasms, Polyps, Angiogenesis
Najmeh Jomehpour , Kiarash Ghazvini , Mahshid Jomehpour ,
Volume 13, Issue 3 (May-Jun 2019)
Abstract
ABSTRACT
Background and Objectives: Medicinal and aromatic plants are sources of natural antimicrobial compounds that could be useful replacements for antibiotics. The aim of this study was to assess antimicrobial activity of Crocus sativus stigma and Cinnamomum cassia extracts against some Gram-positive and Gram-negative bacteria.
Methods: Antimicrobial activity of methanolic and aqueous extracts of the plants was tested against clinical isolates of Klebsiella pneumonia, Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli and Enterococcus using the microdilution method. Minimal inhibitory concentration (MIC) and minimum bactericidal concentration of each extract against the mentioned bacteria were also determined.
Results: The MIC of the methanolic extract of C. cassia was 80 µg/ml against Enterococcus, K. pneumonia and E. coli. The MIC of the methanolic extract of C. sativus was 160 µg/ml against Enterococcus and S. aureus. The minimum bactericidal concentration of the methanolic extracts of C. sativus and C. cassia was 320 µg/ml against K. pneumonia and 160 µg/ml against Enterococcus.
Conclusion: The extracts of C. sativus and C. cassia exhibit promising antibacterial activities against clinical isolates of the tested bacteria. Our results suggest that the extract of these plants can be further exploited as potential antibacterial agents against multi-drug resistant bacteria.
Keywords: Cinnamomum aromaticum, Crocus, Anti-Bacterial Agents.
Fereshteh Keyghobadi, Nader Bahramifar, Elahe Gharekhani, Seyyedeh Marzieh Kia,
Volume 13, Issue 5 (Sep-Oct 2019)
Abstract
ABSTRACT
Background and Objectives: In this study, nanosilica modified with HS-SiO2 thiol groups was utilized as adsorbent for solid phase extraction, as a fast and reliable method of preconcentration and separation of very small quantities of selenium ions from water and blood samples.
Methods: The samples included four natural water samples and one biological sample (blood serum) prepared in volumes of 25, 100, 200, 300, 400 and 500 ml. The samples were analyzed by solid phase microextraction, using thiolated-nanosilica (as adsorbent), ultraviolet-visible spectrophotometry and atomic absorption spectroscopy.
Results: Optimized conditions for preconcentration of a 25 ml 0.2 mg/l selenium solution were pH 5, 40 mg of adsorbent, sample-adsorbent mixing time of 15 minutes and 5 ml of 2N sulfuric acid as detergent. The volume limit and concentration factor were 400 and 80, respectively. Limit of detection and relative standard deviation of the method were 0.46 μg/l and 0.9%, respectively.
Conclusion: This study is the first to successfully utilize thiolated nanosilica for measuring low selenium levels. Thiolation of the absorbent increases selenium adsorption by thiolated-silica compared to SiO2.
Keywords: Solid phase extraction, Selenium, Preconcentration, Nano, UV-visible spectrophotometry.
Mohammad Arefi, Abbas Abdollahi, Ayyoob Khosravi, Abdolavahab Moradi, Seyed Hamid Aghaee-Bakhtiari, Naimeh Javid, Mehdi Evazalipour, Anvarsadat Kianmehr,
Volume 15, Issue 2 (Mar-Apr 2021)
Abstract
Background and objectives: Colorectal cancer (CRC) is one of the leading causes of cancer-related mortality in the world. MicroRNAs (miRNAs) have potential as diagnostic biomarkers for various diseases including cancer. This study was undertaken to investigate expression of miR-21 before and after surgery in patients with hereditary CRC.
Methods: After collecting blood samples from 39 patients and 39 healthy controls, total RNA was extracted by the TRIzol method. Following cDNA synthesis, expression of miR-21 in serum of subjects was evaluated using real-time PCR, along with two reference genes, let-7d and let-7g. The real-time expression results and Ct values were collected and analyzed based on the 2-∆∆ct method.
Results: In spite of tumor removal, serum miR-21 expression levels was significantly higher in hereditary CRC patients compared with controls (P=0.022).
Conclusion: Our results confirmed that samples from hereditary cases of CRC must not be included in experiments on the diagnostic potential of miRNAs.
Zahra Kiani, Pouria Mohammad Parast Tabas, Khashayar Khalilpour, Mahjoube Goldani Moghadam, Majid Zare_bidaki,
Volume 15, Issue 5 (Sep-Oct 2021)
Abstract
Background and objectives: Medicinal plants have long been considered as one of the most important pillars of traditional medicine. Existing challenges in the treatment of diseases, particularly infectious diseases, are major drivers for herbal medicine studies. Tribulus terrestris has been widely used in traditional medicine to treat various diseases. This study aimed to investigate in vitro antibacterial effect of the aqueous extract of T. terrestris on several oral bacteria.
Methods: In this experimental study, after preparing the aqueous extract of T. terrestris, minimum inhibitory and bactericidal concentrations (MIC and MBC) of the extract were determined against standard strains of Streptococcus mutans, Staphylococcus aureus, Klebsiella pneumoniae and Streptococcus pyogenes using the broth microdilution method. The experiments were repeated three times and the results were analyzed with SPSS 22 using the one-way analysis of variance (ANOVA) and LSD statistical tests with the significance level set at 0.05.
Results: The aqueous extract of T. terrestris had the highest inhibitory effect on S. pyogenes and S. mutans, and the difference between the MIC and MBC values was significant (P <0.05). However, no such effect was observed against S. aureus and K. pneumonia at concentrations below 50 mg/ml when compared to ampicillin and chlorhexidine.
Conclusion: The aqueous extract of T. terrestris has significant antibacterial effects against S. pyogenes and S. mutans. Therefore, it can be incorporated into topical formulations such as toothpaste and mouthwash products after further in vivo and toxicity experiments.
Akhtar Seifi, Negarsadat Taheri, Hanieh Kia, Hady Reza Mansourian, Azad Reza Mansourian,
Volume 16, Issue 4 (Jul-Aug 2022)
Abstract
The prevalence of hypothyroidism is much higher among women than in men. Hypothyroidism is also one of the most prevalent thyroid disorders among women of reproductive age. The disease exerts its effect on female sex hormones by manipulating the production of luteinizing hormone and follicle-stimulating hormone that are crucial for the production of estrogen by the ovaries. Various studies demonstrated the adverse effect of overt hypothyroidism on ovulation, menstrual cycle, and fertility. This review surveys the adverse effects of hypothyroidism on fertility and pregnancy.
