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Toroghi R, Sodavari S, Tabatabaeizadeh SE, Sharghi AS, Irankhah N, Fakhraee M, Farzin HR, Sarani M, Khayyat SH, Ashouri M, Torabi M. The First Occurrence of Hepatitis-Hydropericardium Syndrome in Iran and Effective Applied Control Measures in the Affected Commercial Broiler Flock. Avian Dis 2022; 66:213-219. [PMID: 35723929 DOI: 10.1637/aviandiseases-d-21-00086] [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: 09/05/2021] [Accepted: 02/01/2022] [Indexed: 11/05/2022]
Abstract
Fowl adenoviruses cause three economically important diseases in broiler chicken flocks: hepatitis-hydropericardium syndrome (HHS), inclusion body hepatitis (IBH), and adenoviral gizzard erosion. IBH has not been considered a serious threat in northeast Iran since the last decade, because no major effect on flock performance has been noticed along with a low mortality rate. During this period, all the sporadic IBH outbreaks have also been investigated for HHS without finding any confirmed case. In March 2021, a 15-day-old commercial broiler flock in northeast Iran showed a 50% mortality rate, and birds underwent postmortem examination, histopathology, molecular testing, and phylogenetic analysis for possible disease agents. Typical gross lesions of HHS were observed postmortem that included hydropericardium with an unusual accumulation of jelly-like and straw-colored fluid in the pericardial sac (without right ventricular failure); petechial or ecchymotic hemorrhages on the myocardium, myocardial valves, and endocardium; and discolored and mottled liver along with small white foci and petechial or ecchymotic hemorrhages. Histopathologic analysis showed necrosis of hepatocytes and basophilic inclusion bodies in the livers. The molecular tests performed for detection of fowl adenovirus (FAdV), H5 avian influenza virus, Newcastle disease virus, avian infectious bronchitis virus (IBV), H9N2, chicken infectious anemia virus (CIAV), infectious bursal disease (IBD) virus, Marek's disease virus, Ornithobacterium rhinotracheale, Mycoplasma gallisepticum, and Mycoplasma synoviae turned out positive for FAdV, CIAV, IBD vaccine virus, and IBV serotypes 793B and variant I. The phylogenetic tree based on the hexon gene loop 1 demonstrated a FAdV serotype 4 (FAdV-4) that was identical to Pakistani isolate PARC-1/98. Because it was the first detection of a FAdV-4 in Iran, the stamping out program was applied immediately on the basis of HHS gross lesions and positive PCR reaction on pericardial jelly-like fluid. It seems that this eradication strategy was successful because no outbreaks were noticed for 2 mo after the initial outbreak. It was concluded that the use of gross pathologic baselines, quick diagnosis of disease, and close collaboration between governmental and private sectors were the critical factors that helped locally control the first occurrence of HHS in Iran.
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Affiliation(s)
- R Toroghi
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 9183896516, Mashhad, Iran, .,MAAD Veterinary Diagnostic Laboratory, 9198716161, Mashhad, Iran
| | - S Sodavari
- MAAD Veterinary Diagnostic Laboratory, 9198716161, Mashhad, Iran
| | - S-E Tabatabaeizadeh
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 9183896516, Mashhad, Iran
| | - A S Sharghi
- Veterinary Head Office of Khorasan Razavi province, 9185333446, Mashhad, Iran
| | - N Irankhah
- MAAD Veterinary Diagnostic Laboratory, 9198716161, Mashhad, Iran
| | - M Fakhraee
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 9183896516, Mashhad, Iran
| | - H R Farzin
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 9183896516, Mashhad, Iran
| | - M Sarani
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), 9183896516, Mashhad, Iran
| | | | - M Ashouri
- Veterinary Head Office of Khorasan Razavi province, 9185333446, Mashhad, Iran
| | - M Torabi
- Veterinary Head Office of Khorasan Razavi province, 9185333446, Mashhad, Iran
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Darban Maghami N, Nabipour A, Mohsenzadeh M, Torabi M. Histological and stereological approaches for detection of tissues and fraud in some meat products. Vet Res Forum 2022; 13:47-53. [PMID: 35601776 PMCID: PMC9094583 DOI: 10.30466/vrf.2020.115238.2742] [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: 10/02/2019] [Accepted: 01/08/2020] [Indexed: 11/05/2022]
Abstract
Meat and meat products are highly important sources of protein in the diet. Nowadays, the consumption of meat and meat products has increased owing to modern manufacturing techniques. Due to the economic value of meat, the use of unauthorized tissue is possible in meat products. In some cases, there is fraud in the percentage of meat in meat products to reduce prices. In this study, 34 samples of minced meat, hamburger and sausage were randomly collected from the markets in the northeast of Iran. Then, sections were stained using Hematoxylin and Eosin (H & E), Verhoeff-van-Gieson, Masson's trichrome and periodic acid-Schiff-Alcian blue stains. In this regard, for the first time, the efficacy of stereological technique to determine the percentage of meat listed in sausages and the possible existence of fraud was evaluated. The results showed that, due to the presence of some unusual tissues, histological technique could determine different tissues in meat products. The stereological results of control samples showed a very slight difference; whereas, the results for the samples collected from the city stores showed a distinctive difference regarding the percentage of meat compared to the percentage of label. Skeletal and smooth muscles, blood vessels, nerve, gizzard, adipose tissue, glandular tissue, cartilage, bone, tendon, skin, lymphatic tissues and plant materials were observed. It was confirmed that stereology was a reliable method to determine and confirm the percentage of meat used in meat products.
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Affiliation(s)
- Nasser Darban Maghami
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran;
| | - Abolghasem Nabipour
- Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran;
| | - Mohammad Mohsenzadeh
- Department of Food Hygiene, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran;
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Soleymani N, Taran F, Nazemshirazi M, Naghibi A, Torabi M, Borji H, Haghparast A. Dysregulation of Ovine Toll-Like Receptors 2 and 4 Expression by Hydatid Cyst-Derived Antigens. Iran J Parasitol 2021; 16:219-228. [PMID: 34557236 PMCID: PMC8418664 DOI: 10.18502/ijpa.v16i2.6271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/12/2020] [Indexed: 11/24/2022]
Abstract
Background Cystic echinococcosis (CE) is a zoonotic disease caused by infection with Echinococcus granulosus. Toll-like receptors (TLRs) as the first line of defense against various parasites play a critical role in sensing and triggering anti-parasite responses. Methods The study was conducted at the Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Iran in 2019. Ovine peripheral blood mononuclear cells (PBMCs) were stimulated with hydatid cyst-derived antigens including hydatid cyst fluid (HCF), germinal layer antigens (GL), somatic and excretory/secretory (ES) products of protoscoleces (PSC). To investigate whether the expression of TLR2 and TLR4 was altered during exposure to these antigens, PBMCs were stimulated with two different concentrations at different time points. Results After exposure of PBMCs to ES and somatic antigens of protoscoleces (PSC) the expression of TLR2 and TLR4 was down-regulated in comparison with control group. Similarly, HCF markedly down-regulated TLR2 and TLR4 transcripts independent of dose and time. GL antigens significantly down-regulated TLR2, while TLR4 expression was up-regulated as compared with control group. Conclusion Hydatid cyst-derived antigens could dysregulate the expression of TLR2 and TLR4 in ovine PBMCs, suggesting a possible mechanism to suppress host immunity to establish chronic infection.
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Affiliation(s)
- Nooshinmehr Soleymani
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Fateme Taran
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Abolghasem Naghibi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam Torabi
- Central Laboratories of Khorasan Razavi Veterinary Organization, Mashhad, Iran
| | - Hassan Borji
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Alireza Haghparast
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Torabi M, Abazari MF, Zare Karizi S, Kohandani M, Hajati‐Birgani N, Norouzi S, Nejati F, Mohajerani A, Rahmati T, Mokhames Z. Efficient cardiomyocyte differentiation of induced pluripotent stem cells on
PLGA
nanofibers enriched by platelet‐rich plasma. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Maryam Torabi
- Department of Biotechnology College of Science, University of Tehran Tehran Iran
| | - Mohammad Foad Abazari
- Research Center for Clinical Virology Tehran University of Medical Sciences Tehran Iran
| | - Shohreh Zare Karizi
- Department of Biology, Varamin Pishva Branch Islamic Azad University Pishva Iran
| | - Mina Kohandani
- Department of Biology, Faculty of Biological Sciences Islamic Azad University, East Tehran Branch Tehran Iran
| | - Nazanin Hajati‐Birgani
- Department of Biology, Faculty of Science and Research Islamic Azad University Tehran Iran
| | - Sara Norouzi
- Department of Biology, Faculty of Science and Research Islamic Azad University Tehran Iran
| | - Fatemeh Nejati
- Institute of Molecular Biology Vrije Universiteit Brussel Brussels Belgium
| | - Alireza Mohajerani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute Tehran University of Medical Sciences Tehran Iran
| | - Tahereh Rahmati
- SinaCell Research and Product Center Pardis Technology Park Tehran Iran
| | - Zakiye Mokhames
- Department of Molecular Diagnostic, Emam Ali Educational and Therapeutic Center Alborz University of Medical Sciences Karaj Iran
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Kesmati M, Torabi M, Pourreza N, Abdollahzadeh R, Rahiminezhadseta R, Banitorof MB. Effects of Nanoparticle and Conventional-Size Suspensions of MgO and ZnO on Recognition Memory in Mice. NEUROPHYSIOLOGY+ 2020. [DOI: 10.1007/s11062-020-09847-4] [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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Hemeda AA, Pal S, Mishra A, Torabi M, Ahmadlouydarab M, Li Z, Palko J, Ma Y. Effect of Wetting and Dewetting Dynamics on Atomic Force Microscopy Measurements. Langmuir 2019; 35:13301-13310. [PMID: 31536702 DOI: 10.1021/acs.langmuir.9b02575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Water bridge dynamics between an atomic force microscopy (AFM) tip and a flat substrate is studied by using a multibody dissipative particle dynamics (MDPD) model. First, the numerical model is validated by comparing the present results of droplet contact angles and liquid bridges with those reported in the literature. Then, the ability of MDPD to capture the meniscus shape and behavior for different operating conditions and geometric parameters is examined for both static and dynamic cases. Hence, several parametric studies and analyses of the AFM tip configuration and its operating conditions are reported. It is found that a critical capillary number of about 0.001 is calculated based on 5% change on the force measurements between the static and dynamic results. It is also demonstrated that the hysteresis behavior in the capillary force exerted on the AFM tip can be successfully predicted by using the MDPD model when the tip approaches or retracts from the substrate. Moreover, there is an excellent agreement in the results of breakup distance for different water bridge volumes between the predictions of the MDPD model and the theory. Also, the hysteresis of capillary force exerted on an AFM tip composed of multibody design is studied. The prediction on the transition of the capillary force vs distance between the AFM tip and the substrate is in good agreement with the experimental results. Therefore, we demonstrate a validated MDPD model which can successfully capture liquid bridge dynamics. This model can be used as a powerful design tool for meniscus manipulation technology, such as dip-pen nanolithography, as well as for studying dynamic, e.g., tapping mode AFM tip, interactions with a liquid bridge.
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Affiliation(s)
- A A Hemeda
- School of Engineering , University of California, Merced , Merced , California 95343 , United States
- Aerospace Engineering Department , Cairo University , Giza 12613 , Egypt
| | - S Pal
- Department of Mechanical Engineering , McMaster University , Hamilton , ON L8S 4L7 , Canada
| | - A Mishra
- School of Engineering , University of California, Merced , Merced , California 95343 , United States
| | - M Torabi
- School of Engineering , University of California, Merced , Merced , California 95343 , United States
| | - M Ahmadlouydarab
- Faculty of Chemical and Petroleum Engineering , University of Tabriz , Tabriz , Iran
| | - Z Li
- Department of Mechanical Engineering , Clemson University , Clemson , South Carolina 29634 , United States
| | - J Palko
- School of Engineering , University of California, Merced , Merced , California 95343 , United States
| | - Y Ma
- School of Engineering , University of California, Merced , Merced , California 95343 , United States
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Torabi M, Moradmand M, Muster C. A survey of running crab spiders (Araneae: Philodromidae) in Iran. Zoology in the Middle East 2019. [DOI: 10.1080/09397140.2019.1586145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Maryam Torabi
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Majid Moradmand
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Christoph Muster
- Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
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Montajab F, Torabi M. Effect of personality type on internet anxiety in Kerman Dental School students (2015-2016). J Fundam and Appl Sci 2017. [DOI: 10.4314/jfas.v9i1s.735] [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: 11/17/2022] Open
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Ekrami M, Torabi M, Ghafouri-Fard S, Mowla J, Mohammad Soltani B, Hashemi-Gorji F, Mohebbi Z, Miryounesi M. Genetic Analysis of Iranian Patients with Familial Hypercholesterolemia. Iran Biomed J 2017; 22:117-22. [PMID: 28734274 PMCID: PMC5786657 DOI: 10.22034/ibj.22.2.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background: Familial hypercholesterolemia (FH) is a frequent autosomal dominant disorder of lipoprotein metabolism. This disorder is generally caused by mutations in low-density lipoprotein receptor (LDLR), apolipoprotein B 100 (APOB), and proprotein convertase subtilisin/kexin type 9 (PCSK9) genes. In the present study, we aimed at identifying the common LDLR and APOB gene mutations in an Iranian population. Methods: Eighty unrelated Iranian patients with FH entered the study, based on Simon Broome diagnostic criteria. All samples were screened for two common APOB gene mutations, including R3500Q and R3500W, by the means of ARMS-PCR and PCR- RFLP assays, respectively. In addition, exons 3, 4, 9, and 10 of LDLR gene were sequenced in all patients. Results: A novel mutation in exon 3 (C95W) and a previously described mutation in exon 4 (D139H) of LDLR gene were found. Three previously reported polymorphisms in LDLR gene as well as three novel polymorphisms were detected in the patients. However, in the studied population, no common mutations were observed in APOB gene. Conclusion: The results of our study imply that the genetic basis of FH in Iranian patients is different from other populations.
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Affiliation(s)
- Mahdis Ekrami
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam Torabi
- 2Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Mowla
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahram Mohammad Soltani
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Zahra Mohebbi
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Miryounesi
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Jayawardene WP, Lohrmann D, Dickinson S, Talagala S, Torabi M. Clinical measures of obesity and cumulative cardiometabolic risk in adolescents. Clin Obes 2017; 7:11-21. [PMID: 28028931 DOI: 10.1111/cob.12171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/27/2016] [Accepted: 11/17/2016] [Indexed: 12/18/2022]
Abstract
Obesity tracks from childhood to adulthood most strongly of all cardiometabolic risk factors. To determine relationship of body mass index (BMI) and waist circumference (WC) with cardiometabolic risk (dyslipidemia, hyperglycemia and elevated blood pressure) in a large U.S. population ages 12-19 and demographic subgroups. Pooled 1999-2014 National Health and Nutrition Examination Survey data were analyzed (N = 23 438). In addition to standard cutoffs of BMI and WC, risk levels were identified for each laboratory variable: HDL-cholesterol, LDL-cholesterol, triglycerides, total cholesterol (category = lipids); fasting glucose, glycated haemoglobin (category = glucose); systolic/diastolic pressures (category =blood pressure). Within each category, being high-risk on any of the variables was high-risk; being borderline-risk on any, without being high-risk on any, was borderline-risk. Obesity severity was strongly associated with increased cardiometabolic risk, with prevalence of borderline-risk greater than high-risk. Anthropometric indicators in males and Hispanics, versus females and Whites/Blacks, respectively, had stronger associations with cardiometabolic risks. BMI and WC performed well for identifying adolescents with at least one borderline-risk or high-risk level measure for lipids, glucose and blood pressure; relationship strength varying by gender and race/ethnicity. Thus, to prevent or better manage clinical diseases of adolescents with elevated BMI and/or WC, all recommended laboratory tests are warranted.
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Affiliation(s)
- W P Jayawardene
- Applied Health Science, School of Public Health Bloomington, Indiana University, Bloomington, IN, USA
| | - D Lohrmann
- Applied Health Science, School of Public Health Bloomington, Indiana University, Bloomington, IN, USA
| | - S Dickinson
- Epidemiology and Biostatistics, School of Public Health Bloomington, Indiana University, Bloomington, IN, USA
| | - S Talagala
- Global Health Communication Center, Indiana University-Purdue University Indianapolis, Bloomington, IN, USA
| | - M Torabi
- Applied Health Science, School of Public Health Bloomington, Indiana University, Bloomington, IN, USA
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Hassanpour H, Afzali A, Fatemi Tabatabaie R, Torabi M, Alavi Y. Cardiac renin-angiotensin system (gene expression) and plasma angiotensin II in chickens with T3-induced pulmonary hypertension. Br Poult Sci 2016; 57:444-50. [DOI: 10.1080/00071668.2016.1162284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- H. Hassanpour
- Department of Basic Sciences (Physiology Division), Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - A. Afzali
- Department of Basic Sciences (Physiology Division), Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | | | - M. Torabi
- Department of Physiology, Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran
| | - Y. Alavi
- Department of Basic Sciences (Physiology Division), Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
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Mehryar P, Shourijeh MS, Maqbool HF, Torabi M, Dehghani-Sanij AA. Muscle synergy analysis in transtibial amputee during ramp ascending activity. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2016:1676-1679. [PMID: 28324949 DOI: 10.1109/embc.2016.7591037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In developed countries, the highest number of amputees are elderly with transtibial amputation. Walking on inclined surfaces is difficult for amputees due to loss of muscle volume and strength thereby transtibial amputees (TA) rely on the intact limb to maintain stability. The aim of this study was to use the concatenated non-negative matrix factorization (CNMF) technique to calculate muscle synergy components and compare the difference in muscle synergies and their associated activation profiles in the healthy and amputee groups during ramp ascending (RA) activity. Healthy subjects' dominant leg and amputee's intact leg (IL) were considered for recording surface electromyography (sEMG). The muscle synergies comparison showed a reasonable correlation between the healthy and amputee groups. This suggests the central nervous system (CNS) activates the same group of muscles synergistically. However, the activation coefficient profile (C) results indicated statistically significant difference (p <; 0.05) in some parts of the gait cycle (GC) in healthy and amputee groups. The difference exhibited in activation profiles of amputee's IL could be due to the instability of the prosthetic leg during the GC which resulted in alteration of the IL muscles activations. This information will be useful in rehabilitation and in the future development of prosthetic devices by using the IL muscles information to control the prostheses.
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Motamedi H, Rahmat Abadi SS, Moosavian SM, Torabi M. The Association of Panton-Valentine leukocidin and mecA Genes in Methicillin-Resistant Staphylococcus aureus Isolates From Patients Referred to Educational Hospitals in Ahvaz, Iran. Jundishapur J Microbiol 2015; 8:e22021. [PMID: 26468365 PMCID: PMC4601108 DOI: 10.5812/jjm.22021v2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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] [Received: 07/13/2014] [Revised: 09/05/2014] [Accepted: 09/27/2014] [Indexed: 01/24/2023] Open
Abstract
Background: Staphylococcus aureus, an important human pathogen is one of the main causative agents of nosocomial infection. Virulence genes play a major role in the pathogenicity of this agent and its infections. Methicillin-Resistant Staphylococcus aureus (MRSA) isolates are major challenge among infectious agents that can cause severe infections and mortality. Methicillin-resistant S. aureus produces a unique type of Penicillin Binding Protein 2a (PBP2a) that has low affinity for β-lactam antibiotics. Most of the MRSA bacterial strains can also produce a leukotoxin as Panton-Valentine Leukocidin (PVL) that increases the virulence of MRSA strains and can cause severe necrotic pneumonia. The presence of pvl gene is a genetic marker for the MRSA populations. Objectives: The aim of this study was to explore the association of pvl and mecA genes in clinical isolates of MRSA. Materials and Methods: Fifty MRSA isolates were collected from 200 clinical samples from three different educational hospitals in Ahvaz, Iran, and identified by biochemical tests including catalase, oxidase, tube coagulase, mannitol fermentation, and sensitivity to furazolidone, resistance to bacitracin, PYR test and Voges-Proskauer test. Their resistance to methicillin was evaluated using the disc diffusion method. DNA was extracted by boiling and then the presence of pvl and mecA genes was investigated by the polymerase chain reaction method using specific primers. Results: The results revealed that mecA and pvl genes were positive for 15 (30%) and 3 (6%) of the isolates, respectively. None of mecA positive isolates was positive for pvl gene. Conclusions: It can be concluded from these results that fortunately the prevalence of pvl gene is low in MRSA isolates in this region and there is no association between the presence of pvl and mecA genes in these isolates.
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Affiliation(s)
- Hossein Motamedi
- Department of Biology, Shahid Chamran University, Ahvaz, IR Iran
- Corresponding author: Hossein Motamedi, Department of Biology, Shahid Chamran University, Ahvaz, IR Iran. Tel: +98-6133331045, Fax: +98-6133331045, E-mail:
| | | | | | - Maryam Torabi
- Department of Microbiology, Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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Adineh-Vand A, Torabi M, Roshani GH, Taghipour M, Feghhi SAH, Rezaei M, Sadati SM. Application of Adaptive Neuro-Fuzzy Inference System for Prediction of Neutron Yield of IR-IECF Facility in High Voltages. J Fusion Energ 2013. [DOI: 10.1007/s10894-013-9631-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Semsari S, Zakeri A, Sadighzadeh A, Khademzadeh S, Sedaghat M, Torabi M, Damideh V. Comparison of High-Energy He+ and D+ Irradiation Impact on Tungsten Surface in the IR-IECF Device. J Fusion Energ 2012. [DOI: 10.1007/s10894-012-9540-6] [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: 11/25/2022]
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Haji Ebrahimi E, Amrollahi R, Sadighzadeh A, Torabi M, Sedaghat M, Sabri R, Pourshahab B, Damideh V. The Influence of Cathode Voltage and Discharge Current on Neutron Production Rate of Inertial Electrostatic Confinement Fusion (IR-IECF). J Fusion Energ 2012. [DOI: 10.1007/s10894-012-9524-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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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Semsari S, Sadighzadeh A, Zakeri A, Khademzade S, Torabi M, Sedaghat M, Damideh V. The Effect of High Temperature He+ Implantation on Polycrystalline Tungsten in IR-IECF. J Fusion Energ 2011. [DOI: 10.1007/s10894-011-9481-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Torabi M, Rosychuk RJ. An examination of five spatial disease clustering methodologies for the identification of childhood cancer clusters in Alberta, Canada. Spat Spatiotemporal Epidemiol 2011; 2:321-30. [PMID: 22748230 DOI: 10.1016/j.sste.2011.10.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2010] [Accepted: 09/13/2010] [Indexed: 11/16/2022]
Abstract
Cluster detection is an important part of spatial epidemiology because it may help suggest potential factors associated with disease and thus, guide further investigation of the nature of diseases. Many different methods have been proposed to test for disease clusters. In this paper, we study five popular methods for detecting spatial clusters. These methods are Besag-Newell (BN), circular spatial scan statistic (CSS), flexible spatial scan statistic (FSS), Tango's maximized excess events test (MEET), and Bayesian disease mapping (BYM). We study these five different methods by analyzing a data set of malignant cancer diagnoses in children in the province of Alberta, Canada during 1983-2004. Our results show that the potential clusters are located in the south-central part of the province. Although, all methods performed very well to detect clusters, the BN and MEET methods identified local as well as general clusters.
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Affiliation(s)
- M Torabi
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada R3E 0W3
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Shahravan A, Jalali SP, Torabi M, Haghdoost AA, Gorjestani H. A histological study of pulp reaction to various water/powder ratios of white mineral trioxide aggregate as pulp-capping material in human teeth: a double-blinded, randomized controlled trial. Int Endod J 2011; 44:1029-33. [DOI: 10.1111/j.1365-2591.2011.01916.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [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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Zolfigol MA, Mallakpour S, Khazaiae A, Vaghaie RG, Torabi M. Calcium Hypochlorite as an Efficient Reagent for Oxidation of Urazoles under Mild Heterogeneous Conditions. Russian Journal of Organic Chemistry 2004. [DOI: 10.1023/b:rujo.0000044562.96808.06] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Herrera-Saldana R, Gomez-Alarcon R, Torabi M, Huber JT. Influence of synchronizing protein and starch degradation in the rumen on nutrient utilization and microbial protein synthesis. J Dairy Sci 1990; 73:142-8. [PMID: 2312880 DOI: 10.3168/jds.s0022-0302(90)78657-2] [Citation(s) in RCA: 140] [Impact Index Per Article: 4.1] [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: 12/31/2022]
Abstract
A 4 x 4 Latin square design with four multiparous cows in midlactation fitted with duodenal cannulae was used to determine the effect of synchronization of protein and starch degradation in the rumen on nutrient availability in lactating cows. As major starch and protein sources, diets contained: barley plus cottonseed meal; barley plus brewers dried grains; milo plus cottonseed meal; and milo plus brewers dried grains. Experimental periods were 12 d and consisted of 8 d adjustment and 4 d collection. Chromium oxide was used as the marker to determine digestibility and nutrient flow from the rumen. Microbial protein synthesis was estimated from nucleic acid content in duodenal samples. Apparent and corrected rumen digestibilities of DM, organic matter, CP, and starch were higher for diets containing barley than milo but were not affected by protein source. For diets containing barley and milo, starch digested postruminally averaged 820 and 2190 g/d and percentage digestibility was 70 and 77%. No difference among diets was found in DM, organic matter, and CP flow to the small intestine; however, microbial N synthesis was higher in diets containing barley than in diets containing milo.
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Higginbotham GE, Torabi M, Huber JT. Influence of dietary protein concentration and degradability on performance of lactating cows during hot environmental temperatures. J Dairy Sci 1989; 72:2554-64. [PMID: 2600224 DOI: 10.3168/jds.s0022-0302(89)79396-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [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: 01/01/2023]
Abstract
To test effects of protein concentrations and degradability, 60 lactating Holstein cows in midlactation were offered the following diets during three trials between May and October in Tucson, AZ: high protein (18.4%), high degradability; high protein (18.5%), medium degradability; medium protein (16.1%), high degradability; and medium protein (16.1%), medium degradability. Diets comprised 39% alfalfa hay, 12% cottonseed hulls, 10% whole cottonseed, and 39% concentrate (DM) and concentrates contained 60, 40, 57, and 40% degradability, respectively, as determined by ficin assay. Rectal and ambient temperatures suggested that cows were under moderate to intense heat stress, as did group water intakes, which were increased about 15% by high degradability. Milk yields (3.5% FCM) and persistencies were lower for the high protein, high degradability diet than for all others. Mean DM intakes across treatments were quite high but were lower on high than medium protein; whereas ruminal ammonia and blood serum urea were higher on high protein. Milk composition, ruminal VFA, serum glucose, thyroxine, triiodothyronine, and cortisol were not affected by treatment.
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Affiliation(s)
- G E Higginbotham
- Department of Animal Sciences University of Arizona, Tucson 85721
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Abstract
Postweaning growth data, collected from a Hereford herd located in the Southwest, were used to estimate genetic parameters for weights and gains. The herd was maintained on unsupplemented range forage, and average weight losses from weaning to yearling age were 9% for bulls and 12% for heifers. Data were grouped into years with poor and good environments based on contemporary group means for gain from 8 to 12 mo. Postweaning growth data (12- and 20-mo weights, 8- to 12-mo gain and 12- to 20-mo gain) were analyzed by least squares methods with a model that included year of birth, sire within year of birth, age of dam and a covariate of age for 12- and 20-mo weights. Heritability estimates of 12- and 20-mo weights for bulls were .58 +/- .15 and .55 +/- .22 in good environments vs .32 +/- .11 and 1.09 +/- .15 in poor environments; for heifers these estimates were .19 +/- .08 and .35 +/- .12 in good environments vs .38 +/- .07 and .47 +/- .09 in poor environments. Heritability estimates of 8- to 12-mo and 12- to 20-mo gain for bulls were .32 +/- .14 and .51 +/- .24 in good environments vs .16 +/- .11 and .09 +/- .14 in poor environments; for heifers these estimates were .21 +/- .08 and .14 +/- .10 in good environments vs .10 +/- .06 and .44 +/- .10 in poor environments. Genetic correlations among the preweaning traits of birth and weaning weight and postweaning weight traits were positive and of a moderate to large magnitude, with the exception of birth and 12-mo weight in a poor environment (-.06 +/- .49). Genetic correlations between 8- to 12-mo gain and birth weight in poor environment and weaning weight in all environments were negative (range from -.06 +/- .33 to -.53 +/- .41). Genetic correlations among 12- and 20-mo weights were large and positive in all environments. Relationships among gains were more variable.
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Abstract
Data collected from 1957 through 1985 from a Hereford herd located in the Southwest were analyzed separately for each sex to evaluate the heritabilities of and genetic correlations among preweaning growth traits within groups of environmentally similar years. Data were grouped into years with poor, moderate and good environments based on contemporary group means for male calves' weaning weight. A total of 7,690 records were analyzed for birth weight, weaning weight and preweaning daily gain with a model that included year of birth, sire within year of birth, age of dam and a covariate of day of birth for birth weight or age at weaning for the weaning traits. Year of birth was a significant source of variation in all environments for all traits, accounting for more of the variation in the good and poor years than in moderate years. Heritability estimates for all traits were greater in good and moderate years than in poor years for bull calves. For heifers, however, estimates for weaning weight and preweaning daily gain were greater in the poor environment. Genetic correlations among birth weight and preweaning gain increased from the good environment to the poor environment (-.49 +/- .26 to .82 +/- .56 for male calves and -.09 +/- 2.6 to .46 +/- .25 for female calves) but phenotypic correlations were near zero in all environments.(ABSTRACT TRUNCATED AT 250 WORDS)
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Abstract
Dairy Herd Improvement data from 432 Holstein cows were analyzed to determine if coat color was a significant source of variation in the performance of first lactation cows in a hot climate. One of three coat color scores was subjectively assigned to first lactation Holstein cows. White coat color was less than 40% black (15% of the cows), mixed coat color was 40 to 60% black (42% of the cows), and black coat color was greater than 60% black (43% of the cows). Coat color by season of freshening interaction was not an important source of variation for any of the production traits studied; but cows were cooled during the first 130 d of lactation, perhaps removing any advantage white cows may have had during the summer months. The interaction between coat color and season of freshening was significant for days open and services per conception. White cows freshening in February and March required fewer services per conception and had fewer open days than the mixed and black cows. The heritability estimate of coat color was .22 using a paternal half-sib analysis. Additional studies, with more white cows represented, would be useful to elucidate the effects of coat color on production in a hot climate.
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Affiliation(s)
- V L King
- Biometrics and Information Systems Center, University of Nebraska, Lincoln 68583-0712
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Abstract
Udder capacity and udder shape were scored on 3- to 10-yr-old cows from a large Hereford herd. Udder capacity was scored from 1 (small) and 5 (large) and udder shape was scored from 1 (balanced, udder level with ground) to 5 (unbalanced, funnel-shaped udder). Data were analyzed within age of cow for udder capacity scores from 1 to 4 and for udder shape scores from 1 to 3 because of the limited number of observations in other categories. Year of birth of cow was a significant source of variation in both udder capacity and udder shape. Days in lactation (ranging from 81 +/- 23 d in 3-yr-old cows to 71 +/- 25 d in 4-yr-old cows) was an important source of variation for udder capacity; as lactation progressed udder capacity score declined. Body condition of the cow was an important source of variation for udder capacity in 3- and 4-yr-old cows; cows with more external body condition had larger udder capacity scores. The heritability estimates of udder capacity and udder shape for 3-yr-old cows were .12 +/- .14 and .15 +/- .16, respectively; the repeatability estimates of scores over years were .14 +/- .02 and .16 +/- .03, respectively. Residual correlations between udder capacity and udder shape were low, ranging from -.10 in 3-yr-old cows to .10 in 6-yr-old cows. Neither udder characteristic affected the number of years a cow remained in the herd, but cows with unbalanced udders had more udder defects.(ABSTRACT TRUNCATED AT 250 WORDS)
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