Hossein Esmaeili, Hassan Ekhtiyar Zadeh, Hamid Ebrahim Zadeh, Raziyeh Partovi, Bahman Marhamati Khamemeh, Mona Hamedi, Leila Khaji,
Volume 14, Issue 7 (Brucellosis Supplement 2012)
Abstract
Background: Brucellosis, especially if caused by Brucella melitensis, remains one of the most common zoonotic diseases worldwide with more than 500,000 human cases reported annually. In Iran, brucellosis was first recognized in 1932 and control of small ruminant brucellosis began in 1963. The aim of this study is to give an overview of the National Sheep and Goat Brucellosis Control Program in Iran.
Materials and Methods: In this cross-sectional study, data were collected from Iran Veterinary Organization over a period of 45 years. The national control program was based on kid and lamb vaccination and testing and slaughtering infected animals.
Results: B.melitensis biotype I in sheep, goat, and man was the predominant local infective biotype. This disease was reported in sheep, goat, cattle, horse, camel, and human. In addition, the prevalence of small ruminant brucellosis was estimated around 2.1%.
Conclusion: Prevention of brucellosis is dependent upon increasing public awareness of ranchers through health education programs and more active co-operation between health and veterinary medicine organizations as well as animal movement control in the borders.
Bijan Khademi, Mahboubeh Razmkhah, Ebrahim Eftekhar, Ahmad Hosseini, Hossein Hamedi,
Volume 18, Issue 12 (3-2016)
Abstract
Background: Laryngeal carcinoma induce immune system suppression in tumour micro environments with unknown mechanism. Toll like receptors (TLRs) are important molecules which play a critical role in the management and induction of immune responses. In this regard, the importance and the role of TLR 2, 4 and 9 have not been studied together in laryngeal cancer. The present study aims to evaluate the expression level of TLR2, TLR4 and TLR9 in patients with laryngeal carcinoma.
Materials and Methods: 89 tumour samples and 35 tumour-free tissues were obtained from laryngeal carcinoma male patients and the expression level of TLR2, TLR4 and TLR9 was analysed using Real-time PCR method.
Results: The expression level of TLR2 was increased as the result of increasing lymph node involvement, pretumoral involvement and regional metastasis. Also, the TLR4 gene expression levels were increased 1.5 fold in patients with lymph node involvement. The expression Level of TLR9 was increased by increasing stage and primary tumour involvement. The expression pattern of TLR2 and TLR4 in tumour and tumour-free tissues was the same, while TLR9 gene expressions show higher level in tumour tissues than its normal tissue. None of our findings were statistical significant.
Conclusion: we have shown that the expression status of TLR2, TLR4 and TLR9 in patients with laryngeal cancer was correlated with their clinicopathologic features. Additionally, the expression level of TLRs in cancerous and non-cancerous tissues shows no significant changes.
Javad Nakhzari Khodakheir, Amir Hossein Haghighi, Mohammad Reza Hamedinia,
Volume 21, Issue 3 (6-2018)
Abstract
Background and Aim: Physical activity and exercise are as the methods stimulating the secretion of nerve growth factors in MS patients. Therefore, the purpose of this study was to investigate the effects of combined exercise training with aerobic dominant and supplementation of coenzyme Q10 on serum BDNF and NGF levels in patients with multiple sclerosis.
Materials and Methods: In the semi-experimental research, twenty-eight MS patients (EDSS=3-5) were selected by using available sampling method and randomly divided into three experimental groups (combined exercise training + Q10 supplementation, combined exercise training + placebo, and Q10 supplementation) and one control group. two experimental groups performed a combined exercise program include two sessions of aerobic training and one session of resistance training three sessions per week for eight weeks. 200 mg of Q10 supplement was prescribed per day. Blood samples (after 10 hours fasting) were collected 24 hours before the first and 24 hours after the last session of exercise for evaluation of serum levels of BDNF and NGF. Data were analyzed with analysis of covariance at a significance level of p<0.05.
Findings: The results showed no significant changes in serum levels of BDNF and NGF in the three experimental groups compared to the control group (p≥0.05).
Conclusion: Combined exercise training with coenzyme Q10 supplementation cannot lead to changes in serum concentration of nerve growth factors (BDNF, NGF) in patients with MS. Therefore, it is necessary to change the duration and severity of this type of training as well as dose of Q10 supplementation.
Behnoush Sadat Khalili, Javad Hamedi, Setareh Haghighat,
Volume 21, Issue 7 (2-2019)
Abstract
Background and Aim: The widespread use of antibiotics has been led to increased emergence of antibiotic resistant bacteria and high mortality and morbidity rates due to infectious diseases. Pseudomonas aeruginosa is one of the most important causes of nosocomial infections, which shows high resistance to a wide range of antibiotics. So, finding new and effective antimicrobial compounds in order to overcome antibiotic resistant infectious diseases is so critical. Screening of native actinobacteria can be an effective strategy to find novel antimicrobial compounds. The aim of current study was isolation, screening and identification of rare actinobacteria to find the strains which produce antimicrobial compounds against P. aeruginosa.
Material and Methods: Thirty samples of water and sediments were collected from Persian Gulf and Oman Sea and used for isolation of actinobacterial strains. After isolation of actinobacteria, their metabolites were extracted and their anti-P. aeruginosa activities were investigated. Minimum inhibitory concentration (MIC) of the most efficient extract was determined using broth microdilution method. Finally, the most efficient strain was identified.
Ethical Considerations: In this study, all principles of biosafety and bioethics have been considered.
Findngs: Fifty actinobacteria were isolated from water and sediments. Five isolates had considerable antimicrobial activity. MIC value of the most efficient extract against P. aeruginosa was 100 µg/ml. Molecular analysis of 16SrRNA showed that the most effective fermentation broth extract belongs to Micromonospora and has 99.8% similarity to M. chalcea.
Conclusion: The current study revealed that the water of southern Iran and their sediments are promising sources of potent rare Actinobacteria in the production of antimicrobial compounds against P. aeruginosa. |
