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Aslani HS, Athari MB, Tavakoli-Darestani R, Pourmojarab A, Baroutkoub M, Zamani M. Clubfoot Deformity Treatment with Ilizarov Apparatus in the Paediatric Population without Corrective Osteotomies and Soft Tissue Release: A Cross-Sectional Study. Malays Orthop J 2023; 17:42-47. [PMID: 38107361 PMCID: PMC10723000 DOI: 10.5704/moj.2311.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/30/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction Neglected Club Foot deformity is not an uncommon limb anomaly encountered by orthopaedic surgeons. Many treatment methods have been proposed. Ilizarov apparatus is one of the techniques used to correct this deformity. Materials and methods In this cross-sectional study 47 patients (56 feet) between the ages of 5 and 10 years with clubfoot deformity were treated using the Ilizarov external fixator. Age, sex, type of deformity, and radiographic parameters were measured on foot radiographs. Also, the American Orthopaedic Foot and Ankle Society (AOFAS) score and the Dimeglio classification were recorded for each patient before and after treatment. Results The treatment was unilateral in 38 patients and bilateral in 9 patients. 39 patients (69.6%) were male, and 17 patients (30.4%) were female with a mean age of 7.86 ± 1.4 years. Plantar angles of ankle flexion and ankle flexion curve increased from 20.12±6.52 and -16.51±8.36 to 25.89±6.44 and 6.19±6.42, respectively. There was also an improvement in the talocalcaneal and tibiocalcaneal angles. Also, the angle between the first metatarsus and the talus in the front and side views improved (P<0.00). Additionally, the mean AOFAS score and Dimeglio classification significantly improved. Three cases were complicated with distal tibial physeal separation that were treated with additional open surgeries. Conclusion Ilizarov technique without osteotomies and soft tissue release could be considered a less invasive and successful method of treatment for neglected clubfoot deformity in patient five to ten years old that are not good candidate for Ponseti method.
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Affiliation(s)
- H S Aslani
- Department of Orthopedic Surgery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - M B Athari
- Department of Orthopedic surgery, Shahid Beheshti University of Medical Sciences School of Medicine, Tehran, Iran
| | - R Tavakoli-Darestani
- Department of Orthopedic surgery, Shahid Beheshti University of Medical Sciences School of Medicine, Tehran, Iran
| | - A Pourmojarab
- Department of Orthopedic surgery, Shahid Beheshti University of Medical Sciences School of Medicine, Tehran, Iran
| | - M Baroutkoub
- Department of Orthopedic surgery, Shahid Beheshti University of Medical Sciences School of Medicine, Tehran, Iran
| | - M Zamani
- Department of Orthopedic Surgery, Tabriz University of Medical Sciences, Tabriz, Iran
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Khodadadi N, Khodadadi M, Zamani M. Is periodontitis associated with obstructive sleep apnea? A systematic review and meta-analysis. J Clin Exp Dent 2022; 14:e359-e365. [PMID: 35419178 PMCID: PMC9000382 DOI: 10.4317/jced.59478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022] Open
Abstract
Background There are conflicting results on the association between periodontitis and obstructive sleep apnea (OSA). In the present study, we performed a contemporaneous systematic review and meta-analysis to clarify this issue. We also tried to find out whether periodontitis is associated with OSA severity.
Material and Methods We searched the literature published from the inception to 31 December 2021 from the databases of Embase, PubMed, Scopus, and Web of Science, using a combination of suitable keywords, without language restriction. We included observational studies recruiting adults (≥18 years old) that evaluated the association between periodontitis and OSA. Two investigators screened independently the titles and abstracts of the identified articles for potential suitability. We compared the prevalence of periodontitis between OSA-positive and negative individuals using a pooled odds ratio (OR) with a 95% confidence interval (CI). The heterogeneity between the studies was examined by the I2 statistic.
Results Of 265 citations, a total of 10 eligible studies containing 30,994 participants were finally included. Analysis of these studies showed that there was a significant association between periodontitis and OSA (OR=2.17, 95% CI: 1.66-2.83), with no significant heterogeneity between the studies (I2=42.7%, p=0.073). Analysis of three surveys indicated that periodontitis is significantly associated with mild-to-moderate OSA (OR=2.51, 95% CI: 1.32-4.78; I2=0.0%, p=0.527), but not with severe OSA (OR=1.58, 95% CI: 0.70-3.58; I2=0.0%, p=0.469).
Conclusions According to the results, periodontitis has a direct association with OSA. Also, periodontitis has been shown to be associated with mild-to-moderate OSA, but not with severe OSA. Further studies are warranted to elucidate the mechanisms of these associations. Key words:Periodontitis, obstructive sleep apnea, systematic review.
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Farzanegi P, Zamani M, Khalili A, Dehghani H, Fotohi R, Ghanbarpour M, Hosseini S, Peeri M, Rahmati-Ahmadabad S, Azarbayjani M. Effects of upper- and lower-extremity resistance training on serum vascular endothelial growth factor, myostatin, endostatin and follistatin levels in sedentary male students. Sci Sports 2021. [DOI: 10.1016/j.scispo.2020.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zamani M, Zaghari M, Ghaziani F. Comparison of absorption kinetics and utilisation of DL-methionine (DL-Met), Met-Met product (AQUAVI® Met-Met), and protein-bound methionine (PB-Met) by female broiler chickens. Br Poult Sci 2021; 62:539-551. [PMID: 33533263 DOI: 10.1080/00071668.2021.1884653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. Two experiments were conducted to determine the effects of different methionine (Met) sources regarding their absorption kinetics and utilisation in female single-meal-fed broiler chickens.2. A total of 340, one day old female Ross 308 broiler chickens were fed commercial starter and grower diets for 38 d. Birds were then allocated to treatment diets in two experiments as a completely randomised design with four replicates of five chicks per each until 60 d of age. In experiment 1, a 2 × 5 factorial design was used to investigate the effect of two sources (DL-Met and AQUAVI®Met-Met) and five equimolar levels (0.4, 0.8, 1.2, 1.6, and 2 g/kg) in the diet. In experiment 2, different proportions of protein-bound methionine (PB-Met) to DL-Met (0.4:1.6, 0.8:1.2, 1.2:0.8: 1.6:0.4, and 2:0 g/kg) were incorporated into a basal diet deficient in Met. During the experiment, chickens received 90 g of pelleted feed for a time period of 17 ± 2.5 min, once daily.3. The results indicated that chickens fed diets supplemented with DL-Met and Met-Met showed a rapid rise in plasma Met 1 h after feeding, with a sudden drop at 2 h after feeding. In contrast, chickens fed PB-Met substituted diets showed a gradual plasma peak at 1 and 2 h postprandial (P < 0.01). Plasma homocysteine (HCY) content increased to 34.38 and 40.43 μmol/l with DL-Met2.0 and Met-Met2.0 diets, while it decreased to 25.68 μmol/l with PB-Met2.0(P ≤ 0.01). Chickens that received the PB-Met2.0 diet had higher (P ≤ 0.01) protein utilisation (0.54 g/g) and lower excreta nitrogen content (4.04 g/100 g excreta), which demonstrated the benefits of feeding a protein-bound Met source. The efficiency of Met utilisation was 0.69 g/g in chickens fed PB-Met2.0 diet, but only 0.36 and 0.41 g/g in those fed DL-Met2.0 and Met-Met2.0 (P ≤ 0.01).4. The observed utilisation coefficient of DL-Met and Met-Met for single-meal meat-type chickens was lower than expected. The synchronisation of intestinal Met absorption maintained the efficiency of utilisation, which was related to the sources of added Met, with protein-bound Met showing the best utilisation and least excretion.
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Affiliation(s)
- M Zamani
- Poultry Nutrition, Department of Animal Science, University of Tehran, Karaj, Iran
| | - M Zaghari
- Poultry Nutrition, Department of Animal Science, University of Tehran, Karaj, Iran
| | - F Ghaziani
- Chemistry, Department of Animal Science, University of Tehran, Karaj, Iran
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Lindegaard A, Von Buchwald C, Rasmussen J, Specht L, Vogelius I, Zamani M, Friborg J. PD-0055: Outcome in patients with isolated regional recurrence after radiotherapy for head and neck cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00081-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zamani M, Jakobsen K, Friborg J, Grønhøj C, Buchwald C. Long-term comorbidity following treatment of Oropharyngeal Squamous Cell Carcinoma with known HPV and p16 status: a population-based, case-control study of 475 patients. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jensen JS, Christensen J, Hakansson K, Zamani M, Vogelius I, Löfgren J, Fischer B, Friborg J, Buchwald C, Rasmussen J. The Prognostic Value of Pretreatment FDG PET/CT in Patients with Oropharyngeal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Carlander A, Zamani M, Larsen C, Hellelstrup D, Agander T, Kiss K, Olsen C, Baandrup L, Nielsen F, Andersen E, Friborg J, Buchwald C. Survival and characteristics of 772 patients with oropharyngeal cancer and specific human papillomavirus genotypes: A Danish population-based study from 2011-2017. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zamani M, Skagen K, Scott H, Russell D, Skjelland M. Advanced ultrasound methods in assessment of carotid plaque instability: a prospective multimodal study. BMC Neurol 2020; 20:39. [PMID: 31996153 PMCID: PMC6990506 DOI: 10.1186/s12883-020-1620-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 01/16/2020] [Indexed: 12/20/2022] Open
Abstract
Background A significant proportion of ischemic strokes are caused by emboli from atherosclerotic, unstable carotid artery plaques. The selection of patients for endarterectomy in current clinical practice is primarily based on the degree of carotid artery stenosis and clinical symptoms. However, the content of the plaque is known to be more important for stroke risk. Intraplaque neovascularization (IPN) has recently emerged as a possible surrogate marker for plaque instability. Neo-microvessels from the adventitial vasa vasorum grow into the full thickness of the vessel wall in an adaptive response to hypoxia, causing subsequent intraplaque haemorrhage and plaque rupture. Conventional ultrasound cannot detect IPN. Contrast-enhanced ultrasound and Superb Microvascular Imaging (SMI), have, however, shown promise in IPN assessment. Recent research using Shear Wave Elastography (SWE) has also reported reduced tissue stiffness in the artery wall (reduced mean Young’s modulus) in unstable compared to stable plaques. The purpose of this study is to identify unstable carotid artery plaques at risk of rupture and future ischemic stroke risk using multimodal assessments. Methods Forty five symptomatic and 45 asymptomatic patients > 18 years, with > 50% carotid stenosis referred to Oslo University Hospital ultrasound lab will be included in this on-going project. Patients will undergo contrast enhanced ultrasound, SMI, carotid-MRI and PET-(18F-FDG). Contrast enhanced ultrasound will be analyzed semi-quantitatively (5-levels visual classification) and quantitatively by plotting time-intensity curve analyses to obtain plaque peak contrast enhancement intensity. Plaques removed at carotid endarterectomy will be assessed histologically and the number of microvessels, areas of inflammation, granulation, calcification, lipid and fibrosis will be measured. Discussion This multimodality study will primarily provide information on the clinical value of advanced ultrasound methods (SMI, SWE) for the detection of unstable carotid artery plaque in comparison with other methods including contrast-enhanced ultrasound, carotid-MRI and PET-(18F-FDG) using histology as the gold standard. Secondly, findings from the methods mentioned above will be related to cerebrovascular symptoms, blood tests (leukocytes, CRP, ESR, lipoproteins and inflammatory markers) and cardiovascular risk factors at inclusion and at 1-year follow-up. The overall aim is to optimize detection of plaque instability which can lead to better preventive decisions and reduced stroke rate.
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Affiliation(s)
- M Zamani
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Postboks 4950 Nydalen 0424, Oslo, Norway. .,Department of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - K Skagen
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Postboks 4950 Nydalen 0424, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
| | - H Scott
- Department of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Pathology, Oslo University Hospital, Rikshospitalet, Norway
| | - D Russell
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Postboks 4950 Nydalen 0424, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
| | - M Skjelland
- Department of Neurology, Oslo University Hospital, Rikshospitalet, Postboks 4950 Nydalen 0424, Oslo, Norway.,Department of Clinical Medicine, University of Oslo, Oslo, Norway
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Zamani M, Derakhshan MH, Zamani V, Shokri-Shirvani J. Editorial: the prevalence of Helicobacter pylori infection worldwide-knowns and unknowns. Authors' reply. Aliment Pharmacol Ther 2018; 47:1331-1332. [PMID: 29644738 DOI: 10.1111/apt.14618] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- M Zamani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cancer Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - M H Derakhshan
- Faculty of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - V Zamani
- Vice-Chancellery for Health, Babol University of Medical Sciences, Babol, Iran
| | - J Shokri-Shirvani
- Department of Internal Medicine, Rohani Hospital, Babol University of Medical Sciences, Babol, Iran
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Zamani M, Ebrahimtabar F, Zamani V, Miller WH, Alizadeh-Navaei R, Shokri-Shirvani J, Derakhshan MH. Systematic review with meta-analysis: the worldwide prevalence of Helicobacter pylori infection. Aliment Pharmacol Ther 2018; 47:868-876. [PMID: 29430669 DOI: 10.1111/apt.14561] [Citation(s) in RCA: 401] [Impact Index Per Article: 66.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/01/2018] [Accepted: 01/22/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND The epidemiology of Helicobacter pylori infection is poorly understood. AIM To establish the reported regional and national prevalence of H. pylori infection, stratified by age and gender. METHODS All relevant English publications from 2000 to 2017 cited by PubMed and Scopus were retrieved using comprehensive combinations of keywords. The overall prevalence of H. pylori was estimated using both random effect and fixed effect meta-analyses, and presented as prevalence rate (% and 95% CI). The analyses were extended by separation into gender and age groups. RESULTS A total of 14 056 records were obtained initially. After applying exclusion criteria in several steps, 183 studies were selected. Analysis of 410 879 participants from 73 countries in six continents revealed an overall prevalence of 44.3% (95% CI: 40.9-47.7) worldwide. This rate ranged from 50.8% (95% CI: 46.8-54.7) in developing countries compared with 34.7% (95% CI: 30.2-39.3) in developed countries. The global H. pylori infection rate was 42.7% (95% CI: 39-46.5) in females compared to 46.3% (95% CI: 42.1-50.5) in males. The prevalence in adults (≥18 years) was significantly higher than in children (48.6% [95% CI: 43.8-53.5] vs 32.6% [95% CI: 28.4-36.8], respectively). There was a statistically nonsignificant decrease in the prevalence in 2009-2016 compared with the 2000-2009 period. CONCLUSIONS The observed differences between countries appear to be due to economic and social conditions. H. pylori infection can be a benchmark for the socioeconomic and health status of a country. Further studies are suggested to investigate the natural history of the acquisition of H. pylori infection from childhood into adult life.
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Affiliation(s)
- M Zamani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran
- Cancer Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - F Ebrahimtabar
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - V Zamani
- Vice-Chancellery for Health, Babol University of Medical Sciences, Babol, Iran
| | - W H Miller
- Faculty of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - R Alizadeh-Navaei
- Gastrointestinal Cancer Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - J Shokri-Shirvani
- Department of Internal Medicine, Rohani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - M H Derakhshan
- College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
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Mazrooie R, Rohampour K, Zamani M, Hosseinmardi N, Zeraati M. Intracerebroventricular administration of adiponectin attenuates streptozotocin-induced memory impairment in rats. Physiol Int 2017; 104:150-157. [DOI: 10.1556/2060.104.2017.1.4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Alzheimer’s disease (AD) has been reported to be linked with diabetes mellitus and insulin resistance. Adiponectin (ADN), an adipocytokine secreted from adipose tissue, is involved in the regulation of insulin sensitivity, energy homeostasis, and mitochondrial dysfunction. In this study, we examined the effect of ADN on passive avoidance memory in animal model of sporadic AD (sAD). On days 1 and 3 after cannulation, rats received intracerebroventricular (icv) injection of streptozotocin (STZ) (3 mg/kg). Thirty minutes before the learning process, animals received saline or ADN in different doses (6, 60, and 600 µg). The step-through latency (STL) and total time spent in the dark compartment (TDC) were recorded and analyzed. In STZ-treated rats, STL was significantly decreased, whereas TDC showed a dramatic increase. In ADN-treated rats, STL was significantly increased (P < 0.01) in all treatment doses. The number of entries was decreased in all applied doses; however, TDC was reduced only by the application of 6 ng of ADN (P < 0.05). It can be concluded that ADN is useful to improve the STZ-induced memory impairment. This study showed, for the first time, that icv administration of ADN could improve the memory acquisition in animal model of sAD.
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Affiliation(s)
- R Mazrooie
- 1 Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - K Rohampour
- 1 Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - M Zamani
- 1 Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - N Hosseinmardi
- 2 Department of Physiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Zeraati
- 3 Department of Physiology and Pharmacology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran
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Nassirkhani M, Mirab-Balou M, Bazgir M, Zamani M. A Redescription of Acanthocreagris iranica (Pseudoscorpiones, Neobisiidae) Inhabiting Soil Under Oak Trees in Zagros Forest, Western Iran. Vestnik Zoologii 2017. [DOI: 10.1515/vzoo-2017-0020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
During study on soil mesofauna in Choqa Sabz Forest and Dalab Protected Area in Ilam Province (western Iran), the following pseudoscorpions belonging to four families were collected and identified: Chthonius (Chthonius) shelkovnikovi Redikorzev, 1930, Chthonius (Ephippiochthonius) negarinae Nassirkhani and Vafai, 2015, Paramenthus nanus Mahnert, 2007, Cardiolpium asiaticum (Dashdamirov, 1990), and Acanthocreagris iranica Beier, in Mahnert 1976. All of these species are new to the fauna of western Iran. In this survey, the adults of A. iranica collected from Ilam and Lorestan Provinces are redescribed and figured. Additionally, its tritonymph and deutonymph are briefly described.
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Hosseini S, Malvandi A, Moshizi S, Zamani M. Fully developed mixed convection of nanofluids in microtubes at constant wall temperature: Anomalous heat transfer rate and thermal performance. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2016.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zamani M, Shokri-Shirvani J, Zamani V. Letter: levofloxacin resistance - a challenge for the treatment of Helicobacter pylori infection. Aliment Pharmacol Ther 2017; 45:572-573. [PMID: 28074507 DOI: 10.1111/apt.13881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- M Zamani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - J Shokri-Shirvani
- Department of Internal Medicine, Rohani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - V Zamani
- Vice-Chancellery for Health, Babol University of Medical Sciences, Babol, Iran
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Zamani M, Shafiei F, Fazeli SM, Downer MC, Jafari GR. Analytic height correlation function of rough surfaces derived from light scattering. Phys Rev E 2016; 94:042809. [PMID: 27841612 DOI: 10.1103/physreve.94.042809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Indexed: 06/06/2023]
Abstract
We derive an analytic expression for the height correlation function of a homogeneous, isotropic rough surface based on the inverse wave scattering method of Kirchhoff theory. The expression directly relates the height correlation function to diffuse scattered intensity along a linear path at fixed polar angle. We test the solution by measuring the angular distribution of light scattered from rough silicon surfaces and comparing extracted height correlation functions to those derived from atomic force microscopy (AFM). The results agree closely with AFM over a wider range of roughness parameters than previous formulations of the inverse scattering problem, while relying less on large-angle scatter data. Our expression thus provides an accurate analytical equation for the height correlation function of a wide range of surfaces based on measurements using a simple, fast experimental procedure.
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Affiliation(s)
- M Zamani
- Department of Physics, Shahid Beheshti University, G. C., Evin, Tehran 19839, Iran
| | - F Shafiei
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - S M Fazeli
- Department of Physics, University of Qom, Qom, Iran
| | - M C Downer
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - G R Jafari
- Department of Physics, Shahid Beheshti University, G. C., Evin, Tehran 19839, Iran
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Affiliation(s)
- J Shokri-Shirvani
- Department of Internal Medicine, Rohani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - V Zamani
- Vice-Chancellery for Health, Babol University of Medical Sciences, Babol, Iran
| | - M Zamani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran.
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Ferreiro JF, Morscio J, Dierickx D, Vandenberghe P, Gheysens O, Verhoef G, Zamani M, Tousseyn T, Wlodarska I. EBV-Positive and EBV-Negative Posttransplant Diffuse Large B Cell Lymphomas Have Distinct Genomic and Transcriptomic Features. Am J Transplant 2016; 16:414-25. [PMID: 26780579 DOI: 10.1111/ajt.13558] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/03/2015] [Accepted: 08/20/2015] [Indexed: 01/25/2023]
Abstract
The molecular pathogenesis of posttransplant diffuse large B cell lymphoma (PT-DLBCL) is largely unknown. We have recently shown that Epstein-Barr virus-positive (EBV(+)) and -negative (EBV(-)) PT-DLBCL have distinct gene expression profiles, and the transcriptomic profile of EBV(-) PT-DLBCL is similar to that of DLBCL in immunocompetent individuals (IC-DLBCL). To validate these observations at the genomic level, we performed array-comparative genome hybridization (aCGH) analysis of 21 EBV(+) PT-DLBCL, 6 EBV(-) PT-DLBCL, and 11 control IC-DLBCL, and subsequently combined genomic and transcriptomic data. The analysis showed that EBV(+) and EBV(-) PT-DLBCL have distinct aCGH profiles and shared only one recurrent imbalance. EBV(-) PT-DLBCL, however, displayed at least 10 aberrations recurrent in IC-DLBCL, among which characteristic gain of 3/3q and 18q, and loss of 6q23/TNFAIP3 as well as 9p21/CDKN2A. The most prevalent aberration in EBV(+) PT-DLBCL was gain/amplification of 9p24.1 targeting PDCD1LG2/PDL2. Our data indicate that the FOXP1 oncogene and the tumor suppressor CDKNA2 implicated in EBV(-) DLBCL, do not play a critical role in the pathogenesis of EBV(+) PT-DLBCL. Altogether, genomic profiling of PT-/IC-DLBCL confirms that EBV(-) and EBV(+) PT-DLBCL are distinct entities, while EBV(-) PT-DLBCL has features in common with IC-DLBCL. These findings support the hypothesis that EBV(-) PT-DLBCL are de novo lymphomas in transplant recipients.
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Affiliation(s)
| | - J Morscio
- Translational Cell and Tissue Research KU Leuven, Department of Pathology UZ Leuven, Leuven, Belgium
| | - D Dierickx
- Department of Hematology, UZ Leuven, Leuven, Belgium
| | | | - O Gheysens
- Department of Molecular Medicine, UZ Leuven, Leuven, Belgium
| | - G Verhoef
- Department of Hematology, UZ Leuven, Leuven, Belgium
| | - M Zamani
- Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - T Tousseyn
- Translational Cell and Tissue Research KU Leuven, Department of Pathology UZ Leuven, Leuven, Belgium
| | - I Wlodarska
- Center for Human Genetics, KU Leuven, Leuven, Belgium
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Ranjbar-Mohammadi M, Zamani M, Prabhakaran MP, Bahrami SH, Ramakrishna S. Electrospinning of PLGA/gum tragacanth nanofibers containing tetracycline hydrochloride for periodontal regeneration. Mater Sci Eng C Mater Biol Appl 2015; 58:521-31. [PMID: 26478340 DOI: 10.1016/j.msec.2015.08.066] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 08/23/2015] [Accepted: 08/27/2015] [Indexed: 12/19/2022]
Abstract
Controlled drug release is a process in which a predetermined amount of drug is released for longer period of time, ranging from days to months, in a controlled manner. In this study, novel drug delivery devices were fabricated via blend electrospinning and coaxial electrospinning using poly lactic glycolic acid (PLGA), gum tragacanth (GT) and tetracycline hydrochloride (TCH) as a hydrophilic model drug in different compositions and their performance as a drug carrier scaffold was evaluated. Scanning electron microscopy (SEM) results showed that fabricated PLGA, blend PLGA/GT and core shell PLGA/GT nanofibers had a smooth and bead-less morphology with the diameter ranging from 180 to 460 nm. Drug release studies showed that both the fraction of GT within blend nanofibers and the core-shell structure can effectively control TCH release rate from the nanofibrous membranes. By incorporation of TCH into core-shell nanofibers, drug release was sustained for 75 days with only 19% of burst release within the first 2h. The prolonged drug release, together with proven biocompatibility, antibacterial and mechanical properties of drug loaded core shell nanofibers make them a promising candidate to be used as drug delivery system for periodontal diseases.
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Affiliation(s)
| | - M Zamani
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
| | - M P Prabhakaran
- Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore.
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran.
| | - S Ramakrishna
- Mechanical Engineering Department, National University of Singapore, Singapore; Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
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Abstract
BACKGROUND Increasing life-expectancy and decreasing birth rate have led to an increase in the elderly population worldwide so that the aging population is considered one of the biggest public health concerns in the present century which demands more attention to this vulnerable group. Therefore, the present study was done to determine the effect of a healthy lifestyle program on elderly's health in Arak. MATERIALS AND METHODS This quasi-experimental intervention study was carried out on 60 elderly citizens of Arak. The participants attended four instructional classes on nutrition, exercise, sleep hygiene, life skills, and personal hygiene over one month and they were followed for three months after the intervention. Data were collected through standard quality of life questionnaire (SF-36) and Katz standard ADLs in the elderly questionnaire before and three months after the completion of the study. RESULTS The average age of the participants was 67.61 ± 5.02 years. In terms of gender, the majority of the participants (60%) were male. In terms of quality of life before the instructional intervention, 13.3% of the participants were in low level, 30% in average level, 41.7% in good level, and 15% in the high level of quality of life. However, after the intervention, the majority of the participants were in good (38.3%) and high (45%) levels of quality of life which showed significant differences before and after the instructional intervention (P < 0.001). Moreover, there was a significant difference between Katz ADLs in the elderly before and after the intervention (P < 0.001). CONCLUSION The comparison between the quality of life and ADLs in the elderly before and after the intervention showed that continuing instruction for the elderly based on a regular healthy lifestyle program is effective and holding different instructional classes for this population, that is often ignored, seems necessary. The findings of this study can help design proper instructional guidelines on healthy lifestyle in the elderly.
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Affiliation(s)
- D Hekmatpou
- Assistant Professor, Ph.D in Health Education, Arak, Iran
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21
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Zamani M, Modares-Sadegi M, Shirvani F, Zamani H, Emami MH. The involvement of the HLA-DQB1 alleles in the risk and the severity of Iranian coeliac disease patients. Int J Immunogenet 2014; 41:312-7. [PMID: 24917237 DOI: 10.1111/iji.12128] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 03/19/2014] [Accepted: 04/27/2014] [Indexed: 12/31/2022]
Abstract
Coeliac disease (CD) is a highly prevalent autoimmune disorder that is triggered by the ingestion of wheat gluten and related proteins in genetically susceptible individuals. The CD is associated with human leucocyte antigen (HLA) genes particularly with HLA-DQ alleles encoding HLA-DQ2 and DQ8 proteins. To define risk and severity alleles for CD, a total of 120 definite CD patients and 100 healthy controls were genotyped for HLA-DQB1 gene. HLA-DQB1 genotyping was performed in all patients and controls using PCR-SSP technique, and to evaluate the clinical relevance of testing for HLA-DQB1 and determining absolute risk of disease, prevalence-corrected positive predictive value and prevalence-corrected negative predictive value (PcPPV and PcNPV) were calculated. Our results for a first time show that DQB1*02:00 and DQB1*03:02 alleles and DQB1*02:01/03:02 genotype very significantly associated with increased risk of patients with CD, and DQB1*03:01,4 allele provides protection against CD in Iranian patients. Furthermore, the PcPPV for DQB*02:01 and 03:02 alleles in CD were 0.014 and 0.012, respectively, and the highest absolute risk presented by DQB*0201/0302 genotype (PcPPV = 0.079) and 98% of patients with CD carried DQB1*02:01/x or DQB1*03:02/x genotype. The results also clearly demonstrated that the DQB1*02:01 allele significantly associated with severity of CD, while DQB1*03:02 allele associated with mild form of CD. These results suggest that clinically suspected individuals for CD and first-degree relatives of patients with CD to be screened for HLA-DQB*0201 and DQB*0302 alleles for possible early diagnosis and treatments.
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Affiliation(s)
- M Zamani
- Faculty of Medicine, Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran; Department of Neurogenetics, Iranian Centre of Neurological Research, Tehran University of Medical Sciences, Tehran, Iran
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22
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Heydari G, Talischi F, Batmanghelidj E, Pajooh MR, Boroomand A, Zamani M, Salehi A, Maddah S. Dual addictions, parallel treatments: nicotine replacement therapy for patients receiving methadone treatment in the Islamic Republic of Iran. East Mediterr Health J 2014; 19 Suppl 3:S25-S31. [PMID: 24995756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 02/04/2013] [Indexed: 06/03/2023]
Abstract
This parallel, randomized, open-ended clinical trial tested the impact of nicotine replacement pharmacotherapy during the course of methadone treatment among opiate abusers. A total of 424 men entered the study at 4 drug treatment centres in Tehran, Islamic Republic of Iran. The intervention group received a 6-week regimen of nicotine replacement pharmacotherapy at no charge. After 6 months, 211 persons (99.5%) in the control group continued to smoke and 1 person (0.5%) had quit. In the intervention group, 117 (55.1%) persons smoked, 15 (7.1%) persons had quit and 80 (37.7%) had reduced by more than 50% the number of cigarettes they smoked at the start of the study (P < 0.0001). The findings suggest that the use of nicotine replacement pharmacology in tandem with methadone maintenance treatment can lead to dramatically improved efficacy for treatment of dual addictions.
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Affiliation(s)
- G Heydari
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - F Talischi
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - E Batmanghelidj
- Meliora Health Corporation, Vienna, Virginia, United States of America
| | - M R Pajooh
- Welfare Organization,Tehran, Islamic Republic of Iran
| | - A Boroomand
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M Zamani
- Welfare Organization,Tehran, Islamic Republic of Iran
| | - A Salehi
- Welfare Organization,Tehran, Islamic Republic of Iran
| | - S Maddah
- Armaghan Behbood Iranian, Tehran, Islamic Republic of Iran
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23
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Mansouri N, Movafagh A, Sayad A, Ghafouri-Fard S, Darvish H, Zare-Abdollahi D, Emamalizadeh B, Shahvaisizadeh F, Ghaedi H, Bastami M, Kayyal M, Hashemi M, Heidari MH, Nejatizadeh A, Zamani M. Hepatitis B virus infection in patients with blood disorders: a concise review in pediatric study. Iran J Ped Hematol Oncol 2014; 4:178-87. [PMID: 25598959 PMCID: PMC4293518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/28/2014] [Indexed: 10/29/2022]
Abstract
Childhood Hepatitis B virus (HBV) infection causes both medical and public health challenges. Infants who acquire HBV parentally have up to 90% risk of developing chronic HBV infection. It is now estimated that approximately 10% of worldwide cancers are attributable to viral infection, with the vast majority (>85 %) occurring in the developing world. In this distribution, elevated rate and prevalence of HBV marker have been found in patients with malignancies as compared to the general population. By reviewing the web-based search for all Persian and English types of scientific peer review published articles initiated using Iran Medex, MEDLINE/PubMed, CINAHL and other pertinent references on websites about HBV and HCV blood disorders. The high prevalence of HBV and HCV infective markers was detected in patients with different malignancies. Moreover, identification of high prevalence of HBV infective markers in leukemia patients proposed strong association between hepatitis viral infections and leukemia.
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Affiliation(s)
- N Mansouri
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - A Movafagh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Corresponding Author: Movafagh A PhD, Department of Medical Genetics, Pediatric Neurology Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Sayad
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - S Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - H Darvish
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - D Zare-Abdollahi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - B Emamalizadeh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - F Shahvaisizadeh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - H Ghaedi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - M Bastami
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - M Kayyal
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - M Hashemi
- Department of Genetics, Islamic Azad University, Tehran, Iran.
| | - MH Heidari
- Department of Medical Anatomy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - A Nejatizadeh
- Department of Medical Genetics, Molecular Medicine Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - M Zamani
- Department of Neurogenetics, Iranian Center of Neurological Research, Tehran, Iran. ,Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Heydari G, Talischi F, Batmanghelidj E, Pajooh M, Boroomand A, Zamani M, Salehi A, Maddah S. Dual addictions, parallel treatments: nicotine replacement therapy for patients receiving methadone treatment in the Islamic Republic of Iran. East Mediterr Health J 2013. [DOI: 10.26719/2013.19.supp3.s25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Zamani M, Soleimani M, Golab F, Mohamadzadeh F, Mehdizadeh M, Katebi M. NeuroProtective effects of adenosine receptor agonist coadministration with ascorbic acid on CA1 hippocampus in a mouse model of ischemia reperfusion injury. Metab Brain Dis 2013; 28:367-74. [PMID: 23640013 DOI: 10.1007/s11011-013-9408-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 04/10/2013] [Indexed: 12/20/2022]
Abstract
Ischemic brain injury is a leading cause of sever neurological and neurobehavioral deficits and death. The hippocampus plays vital roles in learning and memory processes and it is impaired by ischemic insults. Cerebral ischemia/reperfusion leads to Oxidative stress damage impairing the hippocampus. Here we tested whether ascorbic acid and adenosine receptor played a neuroprotective role in a mouse brain ischemia model induced by common carotid arteries occlusion. Adult male mice were randomly assigned into nine experimental groups. The animals were subjected to ischemia by the ligation of common carotid arteries for 15 min. Drugs were injected intrapritoneally once daily for 7 days. Behavioral tests performed at day 14 and then mice were killed at day 21 and their brains were fixed for microscopic studies and some samples were prepared for western blot analysis. Western blot analysis utilized to evaluate the expression of apoptosis-related proteinsin the hippocampus. Short-term memory was assessed by shuttle-box test. Our findings revealed that administration of vitamin C and N6-cyclopentyladenosine (CPA) significantly attenuated ischemia-induced brain injury. Vitamin C and CPA administration increased the expression of anti-apoptotic protein Bcl-2 and decreased the expression of pro-apoptotic protein Bax in the ischemic mice. Ischemia caused short-term memory loss that was improved by vitamin c and CPA treatment. Our results demonstrate that treatment with vitamin C and adenosine receptor agonist attenuated cerebral ischemia/reperfusion-induced brain injury as a potential neuroprotective agent.
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Affiliation(s)
- M Zamani
- Cellular and Molecular Research Center and Department of Anatomy, Tehran University of Medical Sciences, Tehran, Iran
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26
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Zamani M, Hassanshahi J, Soleimani M, Zamani F. Neuroprotective effect of olive oil in the hippocampus CA1 neurons following ischemia: Reperfusion in mice. J Neurosci Rural Pract 2013; 4:164-70. [PMID: 23914093 PMCID: PMC3724295 DOI: 10.4103/0976-3147.112753] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Transient global ischemia induces selective, delayed neuronal death of pyramidal neurons in the hippocampal CA1. Oxidative Stress is considered to be involved in a number of human diseases including ischemia. Preliminary studies confirmed reduction of cell death in brain following treatment with antioxidants. AIM According to this finding, we study the relationship between consumption of olive oil on cell death and memory disorder in brain ischemia. We studied the protective effect of olive oil against ischemia-reperfusion. MATERIAL AND METHODS EXPERIMENTAL DESIGN INCLUDES THREE GROUPS: Intact (n = 8), ischemic control (n = 8) and treatment groups with olive oil (n = 8). The mice treated with olive oil as pre-treatment for a week. Then, ischemia induced by common carotid artery ligation and following the reduction of inflammation [a week after ischemia], the mice post-treated with olive oil. Nissl staining applied for counting necrotic cells in hippocampus CA1. Tunnel kit was used to quantify apoptotic cell death while to short term memory scale, we apply y-maze and shuttle box tests and for detection the rate of apoptotic and treated cell, we used western blotting test for bax and bcl2 proteins. RESULTS High rate of apoptosis was seen in ischemic group that significantly associated with short-term memory loss. Cell death was significantly lower when mice treated with olive oil. The memory test results were adjusted with cell death results and bax and bcl2 expression in all groups' comparison. Ischemia for 15 min induced cell death in hippocampus with more potent effect on CA1. CONCLUSION Olive oil intake significantly reduced cell death and decreased memory loss.
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Affiliation(s)
- M Zamani
- Department of Anatomy, Esfahan University of Medical Sciences, Esfahan, Iran
| | - J Hassanshahi
- Department of Physiology, Tehran University of Medical Sciences, Tehran, Iran
| | - M Soleimani
- Department of Histology, Tehran University of Medical Sciences, Tehran, Iran
| | - F Zamani
- Department of Nursing, School of Nursing, Esfahan University of Medical Sciences, Esfahan, Iran
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Mokarram P, Zamani M, Kavousipour S, Naghibalhossaini F, Irajie C, Moradi Sarabi M, Hosseini SV. Different patterns of DNA methylation of the two distinct O6-methylguanine-DNA methyltransferase (O6-MGMT) promoter regions in colorectal cancer. Mol Biol Rep 2012; 40:3851-7. [PMID: 23271133 DOI: 10.1007/s11033-012-2465-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 12/18/2012] [Indexed: 12/13/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide. Colorectal cancer incidence differs widely among different geographic regions. In addition to mutational changes, epigenetic mechanisms also play important roles in the pathogenesis of CRCs. O6-methylguanine-DNA methyltransferase (O(6)-MGMT) is a DNA repair protein and in the absence of MGMT activity, G-to-A transition may accumulate in the specific genes such as K-ras and p53. To identify which CpG sites are critical for its downregulation, we analyzed the methylation status of the MGMT gene promoter in two sites in CRC patients. Then we compared the frequency of their methylation changes with the results of our previously reported K-ras gene mutation, APC2 and p16 methylation. MGMT methylation was examined in 92 tumor samples. A methylation specific PCR (MSP) method was performed for two loci of MGMT gene which described as MGMT-A and MGMT-B. The prevalence of MGMT-A, and MGMT-B methylation was 49/91 (53.8%), and 83/92 (90.2%), respectively. We detected high frequency of MGMT-B but not MGMT-A methylation in tumor tissues with APC2 methylation. Our results showed that MGMT-B methylation is significantly associated with K-ras gene mutation rather than MGMT-A (p = 0.04). Simultaneously, an inverse correlation was found between p16 and MGMT-B methylation simultaneously (p = 0.02). Our study indicated that hypermethylation of the specific locus near the MGMT start codon is critical for cancer progression. MGMT-B assessment that is associated with K-ras mutation can have a prognostic value in patients with CRC.
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Affiliation(s)
- P Mokarram
- Department of Biochemistry, Shiraz University of Medical Sciences, School of Medicine, Shiraz, Iran.
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Sayad A, Akbari MT, Pajouhi M, Mostafavi F, Zamani M. The influence of the HLA-DRB, HLA-DQB and polymorphic positions of the HLA-DRβ1 and HLA-DQβ1 molecules on risk of Iranian type 1 diabetes mellitus patients. Int J Immunogenet 2012; 39:429-36. [PMID: 22494469 DOI: 10.1111/j.1744-313x.2012.01116.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Type 1 Diabetes mellitus (T1D) is an autoimmune and multifactorial disease. HLA-DRB1 and DQB1 loci have the strongest association with T1D. This study aimed at investigating (i) susceptibility or protection of alleles, genotypes and haplotypes of HLA-DRB1 and DQB1 loci; and (ii) highly polymorphic amino acid residues of HLA-DRβ1 and DQβ1 in 105 Iranian T1D patients and 100 controls. The results indicated that DRB1*04:01, 03:01, DQB1*03:02, 02:01 alleles, DRB1*03:01/04:01, 03:01/13:03, DQB1*02:01/03:02 genotypes, DRB1*04:01-DQB1*03:02, DRB1*03:01-DQB1*02:01, DRB1*07:01-DQB1*03:03 haplotypes had positive association with T1D. In contrast, HLA-DRB1*15:01, 13:01, DQB1*03:01, 06:01 alleles, DRB1*11:01/15:01, DQB1*03:01/06:01, 03:01/05:01 genotypes and DRB1*15:01-DQB1*06:01, DRB1*11:01-DQB1*03:01 haplotypes had negative association with T1D. Analysis of amino acid sequence of HLA-DRβ1 and DQβ1 revealed that DRβ1(Lys71+) and DQβ1(Asp57-) were significantly more frequent in patients than in controls and had a positive effect in the development of T1D. Haplotype analysis demonstrated that HLA-DRB1(Lys71+) allele provided major susceptibility for T1D, and DQβ1(Asp57-) had an additive effect. We designed an allele-specific primer to develop an easy, quick and cost-benefit method to detect the DRβ1(Lys71+) . This method can identify all 114 DRB1 alleles encoding DRβ1(Lys71+) by three PCR reactions. The PcPPV and PcNPV were also calculated to determine the impact of HLA genotype testing at amino acid positions. It showed that the DRβ1(Lys71+/+) genotype carrier had 1% absolute risk of developing T1D.
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Affiliation(s)
- A Sayad
- Department of Neurogenetics, Iranian Centre of Neurological Research, Tehran
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Kollaee A, Ghaffarpor M, Ghlichnia HA, Ghaffari SH, Zamani M. The influence of the HLA-DRB1 and HLA-DQB1 allele heterogeneity on disease risk and severity in Iranian patients with multiple sclerosis. Int J Immunogenet 2012; 39:414-22. [PMID: 22404765 DOI: 10.1111/j.1744-313x.2012.01104.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Multiple sclerosis (MS) is a common autoimmune disorder of the central nervous system. Recent studies have shown that the HLA-DRB1 and DQB1 alleles are associated with MS susceptibility and severity. However, this is controversial in different population studies. In the present study, the roles of HLA-DRB1 and DQB1 alleles and the amino acids were investigated on disease risk and severity in 120 Iranian patients with MS and 120 controls. Our findings indicate that the DRB1*1501 allele (OR = 3.203 P = 0.001), the DRB1*1501-DQB1*0602 haplotype (OR = 7.792 P = 0.003) and the DRB1*1501/0701- genotype (OR = 3.320 P = 0.006) and amino acid Leu26 (OR = 1.645 P = 0.005) and Phe9 (OR = 1.893 P = 0.009) on the DQβ1 chain are significantly associated with MS susceptibility. DRB1*1001 was the only allele that had a protective effect against MS (P = 0.0004). We also found that the DQB1*0303 allele was significantly associated with disease severity (mean Multiple Sclerosis Severity Score difference = 1.979, P = 0.002). However, protective effect of the DRB1*1001 against MS and also association of DQB1*0303 allele with MS severity need to be confirmed by larger sample size.
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Affiliation(s)
- A Kollaee
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Dabbagh HA, Zamani M, Mortaji H. Conformational stability and rotational energy barrier of RC60–C60R dimers: hyperconjugation versus steric effect. J IRAN CHEM SOC 2012. [DOI: 10.1007/s13738-011-0042-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zamani M, Mehri M, Kollaee A, Yenki P, Ghaffarpor M, Harirchian MH, Shahbazi M. Pharmacogenetic Study on the Effect of Rivastigmine on PS2 and APOE Genes in Iranian Alzheimer Patients. Dement Geriatr Cogn Dis Extra 2011; 1:180-9. [PMID: 22163243 PMCID: PMC3199882 DOI: 10.1159/000329514] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background/Aims Alzheimer disease (AD) is a complex and genetically heterogeneous disorder, and certain genes such as PS2 and APOE4 contribute to the development of AD. Due to its heterogeneity, AD-predisposing genes could vary in different populations. Moreover, not all AD patients will respond to the same therapy. We specifically investigated the effect ofrivastigmine (Exelon) on PS2 and APOE genes in Iranian AD patients. Methods A total of 100 AD patients, 67 patients with sporadic AD (SAD) and 33 patients with familial AD (FAD), receiving rivastigmine therapy and 100 healthy controls were studied. PCR-RFLP was used for genotyping of PS2 and APOE. Results We found a positive association between the PS2 –A allele and SAD patients (pc = 0.01), and the PS2 +A/–A genotype was significantly more frequent in SAD than FAD patients (pc = 0.009). The APOE4 allele was associated with total AD, SAD and FAD (pc = 0.000002). Patients with the PS2 +A/–A genotype and bigenic genotypes of +A/–A·∊3/∊3 and +A/–A·∊3/∊4 were the best responders to Exelon therapy, and those with the PS2 +A/+A and APOE ∊3/∊4 genotypes were the worst responders. Conclusion Our findings suggest that the PS2 and APOE4 alleles and genotypes affect both AD risk and response to rivastigmine therapy.
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Affiliation(s)
- M Zamani
- Department of Neurogenetics, Iranian Center of Neurological Research, Gorgan, Iran
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Siavoshi F, Asgharzadeh A, Ghadiri H, Massarrat S, Latifi-Navid S, Zamani M. Helicobacter pylori genotypes and types of gastritis in first-degree relatives of gastric cancer patients. Int J Med Microbiol 2011; 301:506-12. [PMID: 21641279 DOI: 10.1016/j.ijmm.2011.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 03/27/2011] [Accepted: 03/27/2011] [Indexed: 12/17/2022] Open
Abstract
The frequency of Helicobacter pylori vacA alleles, cagA, and jhp0947 and their association with types and advanced forms of gastritis in 143 first-degree relatives of gastric cancer (GC) patients was assessed. The subjects included 64/143 with antral-predominant gastritis, 68/143 with pangastritis, and 11/143 with corpus-predominant gastritis, with or without atrophy or intestinal metaplasia (IM). Further classification included the severity of atrophy or IM. Group I (40/143) included the subjects with moderate-marked atrophy or IM, group II (58/143) those with no atrophy or IM, and group III (45/143) with mild atrophy or IM. The frequency of vacA s1 was 79.7%, vacA s2 20.3%, m1 49.7%, m2 50.3%, cagA 76.2%, and jhp0947 58%. The most prevalent combination was vacAs1 cagA (+) (65.7%) (P=0.001). Of the 143 subjects, 85 (59.4%) showed atrophy or IM, and 40/85 (47%) developed the moderate-marked atrophy or IM. No significant correlation was found between genotypes and the types of gastritis, non-atrophy, atrophy, or IM and severe forms of atrophy or IM (P>0.05). It is proposed that H. pylori genotype status might not be considered as an important determinant of the types and advanced forms of gastritis in the first-degree relatives of GC patients.
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Affiliation(s)
- F Siavoshi
- Dept. of Microbiology, Faculty of Sciences, University of Tehran, Enghelab Ave., Tehran 141556455, Iran.
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Bonyadian M, Momtaz H, Rahimi E, Habibian R, Yazdani A, Zamani M. Identification & characterization of Shiga toxin-producing Escherichia coli isolates from patients with diarrhoea in Iran. Indian J Med Res 2010; 132:328-331. [PMID: 20847380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND & OBJECTIVES Verotoxigenic Escherichia coli are important serotypes of enterohaemorrhagic E. coli (EHEC) subgroup that cause attaching and effacing lesions in enterocytes by producing verotoxins or shiga-like toxins resulting in haemorrhagic colitis (HC) and haemolytic uremic syndrome (HUS). The aim of this study was to detect these serotypes specially E. coli O157:H7 in stool samples of patients with diarrhoea and identification of virulence genes (STX1, STX2, Hly and EAE) in Shahrekord-Iran area using PCR technique. METHODS Two hundred diarrhoeal stool samples of patients were collected through 2007-2008. Microbiological and biochemical examinations were done to detect the E. coli. Serological tests carried out to identify the O157 or O157:H7 serotypes. RESULTS Of the 58 E. coli isolates, 16 (27.6%) were detected as STX1 carrying E. coli, four (6.9%) carrying STX2, eight (13.8%) carrying both STX1 and STX2, and 12 (20.7%) were Hly carrying E. coli, but none of the isolates contained EAE gene. None of the isolates were E. coli O157 or O157:H7 serotypes. INTERPRETATION & CONCLUSIONS Our results revealed that verotoxigenic E. coli isolates other than O157 serotype were involved in causing diarrhoea in Shahrekord-Iran.
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Affiliation(s)
- M Bonyadian
- Faculty of Veterinary Medicine, Institute of Zoonoses Research, Shahrekord University, Shahrekord-Iran
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Shahbazi M, Ebadi H, Fathi D, Roshandel D, Mohamadhosseni M, Tahmasebi A, Shahbazi S, Zamani M, Rashidbaghan A. HLA-DRB1*1501 intensifies the impact of IL-6 promoter polymorphism on the susceptibility to multiple sclerosis in an Iranian population. Mult Scler 2010; 16:1173-7. [DOI: 10.1177/1352458510376177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: The multifunctional cytokine interleukin-6 (IL-6) is involved in inflammatory processes in the central nervous system. It is well documented that amount of IL-6 is increased in serum, cerebrospinal fluid and central nervous system lesions of patients with multiple sclerosis. A single nucleotide polymorphism at position -174 in the IL-6 gene promotor appears to influence IL-6 expression. Recently, several researchers have focused on HLA-DRB alleles, specifically HLA-DRB1*1501, as a potential risk allele in the pathogenesis of multiple sclerosis. Objective: To investigate the possible influence of IL-6/-174 polymorphisms on susceptibility to multiple sclerosis and its integration with HLA-DRB1*1501. Genomic DNA was extracted from whole blood of 345 patients with multiple sclerosis and 426 control subjects. Method: The SSP-PCR method was used to determine genotypes and Fisher’s exact test was applied to determine differences between groups. HLA-DRB1*1501 was observed more frequently among multiple sclerosis patients compared with healthy subjects (45% and 34%, respectively; OR = 1.6, 95% CI = 1.2—2.2, p = 0.0018). At the IL-6/-174 position, the G allele had higher frequency among multiple sclerosis patients compared with controls (77% and 70%, respectively; OR = 1.4, 95% CI = 1.1—1.8, p = 0.0038). This difference was more significant among HLA-DRB1*1501-positive patients and controls (81% and 67%, respectively; OR = 1.9, 95% CI = 1.5—2.5, p < 0.0001). Results: Our results have shown that the G allele at the IL-6/-174 promoter polymorphism may be associated with development of multiple sclerosis in this population, and may be strengthened by HLA-DRB1*1501. Conclusions: We suggest more studies to confirm these results in other populations.
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Affiliation(s)
- M. Shahbazi
- Medical Cellular and Molecular Research Center, Molecular Medicine and Genetics, Golestan University of Medical Sciences, Gorgan, Iran,
| | - H. Ebadi
- Medical Cellular and Molecular Research Center, Neurology, Golestan University of Medical Sciences, Gorgan, Iran
| | - D. Fathi
- Medical Cellular and Molecular Research Center, Neurology, Golestan University of Medical Sciences, Gorgan, Iran
| | - D. Roshandel
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - M. Mohamadhosseni
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - A. Tahmasebi
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - S. Shahbazi
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
| | - M. Zamani
- Neurogenetics Division, Neurological Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - A. Rashidbaghan
- Medical Cellular and Molecular Research Center, Genetics and Immunology, Golestan University of Medical Sciences, Gorgan, Iran
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Zamani M, Stoulos S, Fragopoulou M, Manolopoulou M, Krivopustov M. Indirect measurement of inelastic cross section of relativistic protons in Pb target. ANN NUCL ENERGY 2010. [DOI: 10.1016/j.anucene.2010.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zamani M, Tabatabaiefar MA, Mosayyebi S, Mashaghi A, Mansouri P. Possible association of the CD4 gene polymorphism with vitiligo in an Iranian population. Clin Exp Dermatol 2009; 35:521-4. [PMID: 19843086 DOI: 10.1111/j.1365-2230.2009.03667.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Vitiligo is an acquired idiopathic and polygenic disorder with progressive depigmentation of circumscribed patches. Its exact pathogenesis is unknown. The CD4 gene plays an important role in the cell-mediated immune response and its association with type 1 diabetes mellitus, which is an autoimmune disease, has been previously reported. METHODS Based on the assumption that autoimmunity is also involved in vitiligo, the CD4 gene was selected for study using a candidate gene approach. The pyrimidine-rich pentanucleotide repeat length polymorphism located in the promoter of the gene was studied. We screened 144 unrelated Iranian patients with vitiligo and 144 healthy matched controls by PCR. RESULTS The CD4*A4 allele has a susceptibility association with the development of vitiligo in the Iranian population (OR = 1.68, 95% CI 1.18-2.42; P < 0.01, P(c) = 0.02). When we compared CD4*A4-containing genotypes in the case and control groups, even more significant positive association was identified (OR = 2.02, 95% CI 1.26-3.22; P < 0.01 and P(c) < 0.01). The CD4 gene polymorphism has a modest association with the development of vitiligo in Iranian patients.
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Affiliation(s)
- M Zamani
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Zamani M, Fragopoulou M, Stoulos S, Manolopoulou M, Kulakov B, Krivopustov M, Sosnin N, Brandt R, Westmeier W, Debeauvais M, Hashemi-Nezhad S. Erratum to “Neutron yields from massive lead and uranium targets irradiated with relativistic protons” [Radiation Measurements 40 (2005) 410–414]. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nasrollahi S, Arab M, Zamani M, Ghafeleh-Bashi M. Comparison between Intravenous and Intramuscular Administration of Prostaglandin E2 on Management of Missed Abortion. J Res Health Sci 2008; 8:51-54. [PMID: 23344073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Accepted: 10/10/2008] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND To compare the efficacy of two routes of prostaglandin E2 administration (Intravenous and Intramuscular) for treatment of missed abortion this study was conducted. Regarding the pilot cases of missed abortion admitted for termination of pregnancy intravenous administration of PGE2 that had higher efficacy compare to intramuscular route, investigators designed this study. METHODS In a randomized clinical trail, 50 women with confirmed missed abortion received 250-500 μg prostaglandins E2 either intravenously or intramuscularly. Evacuation time set from drug injection to complete empting of uterus. Complete uterine evacuation was defined as empting of uterus from pregnancy materials without the need for surgical intervention and partial evacuation defined as incomplete empting of uterus that need further surgical management. Data were analyzed using SPSS, version 13. All the data extracted with a checklist and compare by descriptive statistics and X2 and t-tests. RESULTS There was no statistically difference between the results of two administration routes. The mean of evacuation time in intravenous administration routes was significantly lower in compare to intramuscular administration routes (P< 0.5). There was no statistically significant difference in the demographic data in two groups. CONCLUSION There was no preference between two administration routes except for evacuation time that occurred more rapidly in intravenous administration of PG E2.
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Affiliation(s)
- Sh Nasrollahi
- Dept. of Obstetrics & Gynecology, Fatemiyeh Hospital, Hamedan University of Medical Sciences, Iran
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Fragopoulou M, Stoulos S, Manolopoulou M, Krivopustov M, Zamani M. Dose measurements around spallation neutron sources. Radiat Prot Dosimetry 2008; 132:277-282. [PMID: 18957519 DOI: 10.1093/rpd/ncn280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Neutron dose measurements and calculations around spallation sources appear to be of great importance in shielding research. Two spallation sources were irradiated by high-energy proton beams delivered by the Nuclotron accelerator (JINR), Dubna. Neutrons produced by the spallation sources were measured by using solid-state nuclear track detectors. In addition, neutron dose was calculated after polyethylene and concrete, using a phenomenological model based on empirical relations applied in high-energy physics. The study provides an analytical and experimental neutron benchmark analysis using the transmission factor and a comparison between the experimental results and calculations.
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Affiliation(s)
- M Fragopoulou
- Physics Department, Aristotle University of Thessaloniki, Greece.
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Fragopoulou M, Manolopoulou M, Jokic S, Zamani M, Krivopustov M, Sosnin A, Stoulos S. Preliminary results on neutron production from a Pb/U target irradiated by deuteron beam at 1.25GeV/amu. RADIAT MEAS 2008. [DOI: 10.1016/j.radmeas.2008.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Korzebor A, Zamani M, Nouri K, Modarressi MH. Statistical analysis of six STR loci located in MHC region in Iranian population for preimplantation genetic diagnosis. Int J Immunogenet 2008; 34:441-3. [PMID: 18001301 DOI: 10.1111/j.1744-313x.2007.00719.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We studied allele frequency and other statistical parameters of six short-tandem repeat (STR) loci: D6S265, D6S439, D6S105, D6S82-1, MICA, and MOGd, which are located in major histocompatibility complex (MHC) region (6p21.3) in 101 Iranian individuals. STR polymorphisms were analysed by PCR and polyacrylamide gel electrophoresis and subsequent comparison with standard (allelic) ladders. Exact tests of Hardy-Weinberg equilibrium were performed for the six loci. All loci, except the MOGd (P = 0.4291), were in Hardy-Weinberg equilibrium. These data may be useful in PGD-HLA matching and forensic science.
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Affiliation(s)
- A Korzebor
- Department of Medical Genetics, Medical Sciences/Tehran University, Tehran, Iran
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Zamani M, Sharifi Tehrani A, Ali Abadi AA. Evaluation of antifungal activity of carbonate and bicarbonate salts alone or in combination with biocontrol agents in control of citrus green mold. Commun Agric Appl Biol Sci 2007; 72:773-777. [PMID: 18396809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this research was to determine if the attacks of green mold on orange could be reduced by edible salts alone or in combination with biocontrol agent. For this purpose toxicity to Pantoea digitatum and practical use of sodium carbonate (SC), sodium bicarbonate (SBC) and potassium carbonate, and potassium bicarbonate alone or in combination with antagonistic bacteria (Pseudomonas fluorescens isolate PN, Bacillus subtilis isolate VHN, Pantoea agglomerans isolate CA) to control green mold were determined. All were fungistatic. SC and SBC were equal and superior to the other salts for control of green mold on oranges inoculated 6h before treatment and were chosen for subsequent trails under cold storage conditions. The biocontrol agents were found completely tolerant to 3% sodium bicarbonate and sodium carbonate at room temperature; although their culturability was reduced by > 1000-fold after 60 min in 1% other salt solutions. Satisfactory results were also obtained with the combined treatment for control of green mold. A significant increase in biocontrol activity of all isolate was observed when combined with sodium carbonate and sodium bicarbonate. The treatments comprising CA combined with SB was as effective as fungicide treatment. Thus, use of sodium bicarbonate treatment at 3% followed by the antagonist P. agglomerans CA could be an alternative to chemical fungicides for control of green mold on oranges.
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Affiliation(s)
- M Zamani
- Department of Plant Protection, Collage of Horticultural Science & Plant Protection, University of Tehran, Karaj, Iran
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Zamani M, Sharifi Tehrani A, Ahmadzadeh M, Ali Abadi AA. Evaluation of production of some antifungal metabolites by fluorescent pseudomonads in vitro and their inhibitory effect on Penicillium digitatum in semi-commercial condition. Commun Agric Appl Biol Sci 2007; 72:935-939. [PMID: 18396831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Epiphytic fluorescent Pseudomonads isolated from the surfaces of citrus leaves and fruits collected from the citrus orchards located in the north of Iran were screened for antagonistic activity against Penicillium digitatum caused agent of green mold of citrus fruit. 9 isolates revealed antagonistic effect in dual culture and then evaluated for production of antimicrobial metabolites such as production hydrogen cyanide on King's B medium containing glycine, production of siderophore on blue CAS-agar medium and production protease enzyme on Skim Milk Agar (SMA) medium. About 28% strains produced hydrogen cyanide, 83% strains produced siderophore and 70% of them produced protease. Antagonistic effects of the screened 9 isolates were studied by inoculating of the infected orange fruits with the bacterium at the concentration of 10(8) cells/ml under sterilized condition at 20 degrees C. The three final screened antagonist isolates were more studied in semi commercial trails in cold storage with dipping of the orange fruits in the bacterial suspension at the concentration of 10(8) cells/ml and then 5 weeks storage at 4 degrees C. The isolate P39 showed to be the most effective for controlling of this disease and decreased the damage by 77.28% respectively.
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Affiliation(s)
- M Zamani
- Department of Plant Protection, University of Tehran, Karaj, Iran
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Manolopoulou M, Stoulos S, Fragopoulou M, Brandt R, Westmeier W, Krivopustov M, Sosnin A, Zamani M. Detection of spallation neutrons and protons using the (nat)Cd activation technique in transmutation experiments at Dubna. Appl Radiat Isot 2006; 64:823-9. [PMID: 16549358 DOI: 10.1016/j.apradiso.2006.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Revised: 01/08/2006] [Accepted: 01/27/2006] [Indexed: 11/28/2022]
Abstract
Various spallation sources have been used to transmute long-lived radioactive waste, mostly making use of the wide energy neutron fluence. In addition to neutrons, a large number of protons and gamma rays are also emitted from these sources. In this paper (nat)Cd is proved to be a useful activation detector for determining both thermal-epithermal neutron as well as secondary proton fluences. The fluences measured with (nat)Cd compared with other experimental data and calculations of DCM-DEM code were found to be in reasonable agreement. An accumulation of thermal-epithermal neutrons around the center of the target (i.e. after approx. 10 cm) and of secondary protons towards the end of the target is observed.
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Affiliation(s)
- M Manolopoulou
- Physics Department, Aristotle University of Thessaloniki, Thessaloniki 54124, Hellas, Greece.
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Zamani M, Tehrani AS, Ahmadzadeh M, Abadi AAA. Effect of fluorescent pseudomonades and Trichoderma sp. and their combination with two chemicals on Penicillium digitatum caused agent of citrus green mold. Commun Agric Appl Biol Sci 2006; 71:1301-10. [PMID: 17390894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Citrus green mold (Penicillium digitatum) causes economic losses. Chemical fungicides such as imazalil provide the primary means for controlling green mold decay of citrus fruits. Continuous use of fungicides has faced two major obstacles- increasing public concern regarding contamination of perishables with fungicidal residues, and proliferation of resistance in the pathogen populations. The aim of this research was to determine if the attacks of green mold on orange could be reduced by usage of biocontrol agent alone or in combination with low dosage of imazalil or sodium bicarbonate. Pseudomonas fluorescens isolate PN, P. fluorescens isolate PS and Trichoderma virens isolate TE were evaluated as potential biological agents for control of green mold of oranges caused by P. digitatum. Increasing concentration of SB decreased spore germination of P. digitatum. In laboratory tests, a cell suspension (10(8) cells per ml.) of bacterial strains reduced the incidence of green mold. On fruits surface biocontrol activity of antagonistic isolates was significantly increased when combined with low dosage of imazalil (500ppm) or sodium carbonate (5%). Effect of Trichoderma virens on controlling P. digitatum was better than others with or without these chemicals.
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Affiliation(s)
- M Zamani
- Department of Plant Protection, College of Horticultural Science and Plant Protection, University of Tehran, Karaj, Iran.
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Zamani M, Fragopoulou M, Stoulos S, Manolopoulou M, Kulakov B, Krivopustov M, Sosnin N, Brandt R, Westmeier W, Debeauvais M, Hashemi-Nezhad S. Neutron yields from massive lead and uranium targets irradiated with relativistic protons. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2005.04.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stoulos S, Fragopoulou M, Adloff JC, Debeauvais M, Brandt R, Westmeier W, Krivopustov M, Sosnin A, Papastefanou C, Zamani M, Manolopoulou M. Application of activation methods on the Dubna experimental transmutation set-ups. Appl Radiat Isot 2003; 58:169-75. [PMID: 12573315 DOI: 10.1016/s0969-8043(02)00312-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
High spallation neutron fluxes were produced by irradiating massive heavy targets with proton beams in the GeV range. The experiments were performed at the Dubna High Energy Laboratory using the nuclotron accelerator. Two different experimental set-ups were used to produce neutron spectra convenient for transmutation of radioactive waste by (n,x) reactions. By a theoretical analysis neutron spectra can be reproduced from activation measurements. Thermal-epithermal and fast-super-fast neutron fluxes were estimated using the 197Au, 238U (n,gamma) and (n,2n) reactions, respectively. Depleted uranium transmutation rates were also studied in both experiments.
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Affiliation(s)
- S Stoulos
- Aristoitle University of Thessaloniki, Physics Deptartment, Greece.
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Zamani M, Spaepen M, Sghar SS, Huang C, Westerhof W, Nieuweboer-Krobotova L, Cassiman JJ. Linkage and association of HLA class II genes with vitiligo in a Dutch population. Br J Dermatol 2001; 145:90-4. [PMID: 11453913 DOI: 10.1046/j.1365-2133.2001.04288.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Serological typing of HLA has shown discrepancies in HLA associations with vitiligo in different ethnic populations. OBJECTIVES To perform genotyping of HLA class II genes on a Dutch vitiligo population in order clearly to identify susceptible and protective HLA alleles in vitiligo. METHODS HLA typing was carried out by amplifying genomic DNA by polymerase chain reaction (PCR) followed by dot-blot hybridization with sequence-specific oligonucleotides (SSO). Fifty Dutch vitiligo probands, and their parents (150 individuals) and 204 healthy controls were studied. RESULTS Family-based case-control association studies and linkage disequilibrium analysis showed the linkage and association of DRB4*0101 allele with vitiligo (P(c) = 0.0016, relative risk = 2.21). The family-based association study also provided evidence for linkage and association of DQB1*0303 allele with vitiligo (chi(2) = 7.36, P = 0.006). We measured the clinical relevance of the test by calculating the prevalence corrected positive predictive values (PcPPV). The PcPPV of disease for the DRB4*0101 allele was 0.017 and for the DRB4*0101/0101 genotype was 0.0358. In other words, a DRB4*0101/0101 genotype carries a 3.58% risk of developing vitiligo. CONCLUSIONS Both DRB4*0101 and DQB1*0303 alleles provide significant susceptibility for vitiligo.
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Affiliation(s)
- M Zamani
- Centre for Human Genetics, University of Leuven, Campus Gasthuisberg, Herestraat 49, B-3000 Leuven, Belgium
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Abstract
The association of the Graves disease (GD) with HLA DR3 and DQA1*0501 in Caucasians has been described previously. From these studies it could not be determined whether one specific locus was primarily involved. Using a case-control study design, we have examined the role of HLA class II gene polymorphisms in the predisposition for GD in a group of Belgian subjects. We demonstrated that both DRB1*0301 and DQA1*0501 alleles conferred significant susceptibility in the DRB1*0301-DQA1*0501 haplotype. The DRB1*0301 allele was the primary susceptibility allele for GD, however, because the susceptibility provided by DQA1*0501 was most likely due to it being in linkage disequilibrium with DRB1*0301. The DRB1*0701/x and DQA1*0201/x genotypes and the DRB1*0701-DQA1*0201 haplotype provided protection with an equal RR of 0.29. Predictive value calculations showed that testing for DRB1*0301 gave the highest positive predictive value for GD in females and males. This was, however, 10 times higher in females and predicted a 3.63% risk for a random female to develop GD.
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Affiliation(s)
- M Zamani
- Center for Human Genetics, University of Leuven, Leuven, Belgium
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Abstract
The association of the Graves disease (GD) with HLA DR3 and DQA1*0501 in Caucasians has been described previously. From these studies it could not be determined whether one specific locus was primarily involved. Using a case-control study design, we have examined the role of HLA class II gene polymorphisms in the predisposition for GD in a group of Belgian subjects. We demonstrated that both DRB1*0301 and DQA1*0501 alleles conferred significant susceptibility in the DRB1*0301-DQA1*0501 haplotype. The DRB1*0301 allele was the primary susceptibility allele for GD, however, because the susceptibility provided by DQA1*0501 was most likely due to it being in linkage disequilibrium with DRB1*0301. The DRB1*0701/x and DQA1*0201/x genotypes and the DRB1*0701-DQA1*0201 haplotype provided protection with an equal RR of 0.29. Predictive value calculations showed that testing for DRB1*0301 gave the highest positive predictive value for GD in females and males. This was, however, 10 times higher in females and predicted a 3.63% risk for a random female to develop GD.
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Affiliation(s)
- M Zamani
- Center for Human Genetics, University of Leuven, Leuven, Belgium
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