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Pourabbas B, Emad J, Dehghani J, Heidari S, Vosoughi AR. Mechanical evaluation of the effect of the rod to rod distance on the stiffness of uniplanar external fixator frames. Musculoskelet Surg 2023; 107:397-403. [PMID: 37029888 DOI: 10.1007/s12306-023-00782-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/26/2023] [Indexed: 04/09/2023]
Abstract
PURPOSE To investigate the effect of the rod-to-rod distance on the mechanical stability of single-rod and double-rod external fixator frames. METHODS Four different constructs, one single-rod and three double-rod constructs with different rod-rod distances, were subjected to the axial, bending, and torsional forces. The stiffness of different configurations was calculated. RESULTS Single-rod configuration had statistically the lowest stiffness when subjected to the axial, bending, and torsional forces. Maximum stiffness against the axial and anterior-posterior bending forces was achieved when the rod-rod distance was adjusted to 50 mm (halfway between the first rod and the end of the Schanz pins). There was no statistically significant difference in lateral bending stiffness among different double-rod configurations (p value: 0.435). The maximum stiffness against torsional forces was achieved when the rod-rod distance was adjusted to 100 mm (the second rod at the end of the Schanz pins). CONCLUSION Double-rod uniplanar external fixator frames are significantly stiffer than the single-rod constructs, and however, the rod-rod distance can significantly affect the construct stiffness. We found that a frame with 50 mm rod-rod distance was the optimum fixator among tested configurations that allowed a balance between axial, bending, and torsional stiffness of the construct.
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Affiliation(s)
- B Pourabbas
- Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - J Emad
- Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - S Heidari
- Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A R Vosoughi
- Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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Elikaee S, Zarei Z, Khamesipour A, Akhoundi B, Borjian AR, Afshar MJA, Allely QK, Heidari S, Mohebali M. Live attenuated Leishmania major p27 gene knockout as a novel vaccine candidate: A study on safety, protective immunity and efficacy against canine leishmaniasis caused by Leishmania infantum. Acta Trop 2022; 225:106153. [PMID: 34634264 DOI: 10.1016/j.actatropica.2021.106153] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 08/28/2021] [Accepted: 09/21/2021] [Indexed: 11/28/2022]
Abstract
Canine leishmaniasis (CanL) is an important parasitic e disease caused by Leishmania infantum and is transmitted by female phlebotomine sand flies primarily between canines and secondarily to humans. Recently, we showed that immunization with Leishmania major p27 gene knockout (Lmp27-/-) as a live attenuated vaccine was safe, induced immunogenicity, and protected against the development cutaneous and visceral leishmaniasis in mice. The p27 protein is a component of the COX protein complex which is responsible for ATP production. In this study, we analyzed the Lmp27-/- candidate vaccine potential with this regard to the safety and induction of immunogenicity and protection against CanL. Variables such a clinical manifestation, anti-Leishmania antibodies using direct agglutination test (DAT), lymphocyte proliferation, delayed-type hypersensitivity (DTH), bone marrow aspiration (BMA) and parasite burden using parasitological and molecular examinations were measured. The results demonstrated that the Lmp27-/- vaccinated group showed no clinical signs after inoculation with Lmp27-/- mutant during a 12-month follow-up, and had significantly higher T-cell responses (Lymphocyte proliferation and DTH), lower seroconversion and parasite burdens following a challenge inoculation with L. infantum after 6-mounth. In conclusion, vaccination with Lmp27-/- parasites would be safe and provide significant immunoprotectivity and efficacy against infection with wild type (WT) L. infantum.
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Affiliation(s)
- S Elikaee
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Pacific University School of Pharmacy, Hillsboro, Oregon, USA
| | - Z Zarei
- Meshkin Shahr Station, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - A Khamesipour
- Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | - B Akhoundi
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - A R Borjian
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M J Abbaszadeh Afshar
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Q K Allely
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - S Heidari
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mohebali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Endemic Parasites of Iran, Tehran University of Medical Sciences, Tehran, Iran.
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Asadi A, Aiken CA, Heidari S, Kochackpour F. The effect of attentional instructions during modeling on gaze behavior and throwing accuracy in 7 to 10 year-old children. Hum Mov Sci 2021; 78:102825. [PMID: 34051666 DOI: 10.1016/j.humov.2021.102825] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/10/2021] [Accepted: 05/18/2021] [Indexed: 11/24/2022]
Abstract
Research has shown the effectiveness of attentional instructions and observation on the performance and learning in children. However, there is little research on the effects of instruction that manipulates attentional focus during observation. The purpose of the study was to investigate performance following instructions that directed an individual to focus internally or externally during the viewing of a model. Eye tracking was also used to investigate the visual search strategy under different instructional groups. 24 children between the ages of 7 and 10 years were randomly divided into an internal (IFM) or external (EFM) modeling group. Children performed a 10-trial pre-test to measure throwing accuracy and quiet eye duration (QED). Following pre-test, children observed a model performing the correct overarm throw 10 times while eye movement was recorded. They then performed a 10-trial post-test. Results revealed that both groups improved accuracy from pre-test to post-test (p < .001) and increased QED from pre- to post-test (p < .001). It was also observed that EFM had greater accuracy and (p = .01) and longer QED (p < .001) than IFM during post-testing. Evidence was also observed for adherence to the attentional focus strategy as EFM and IFM looked more frequently at the specific cue provided (p < .001). Directing visual attention to the movement effects while observing a model significantly benefits motor performance and learning in children. Changing the focus of instruction to an external focus improved both throwing accuracy and increased QED.
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Affiliation(s)
- A Asadi
- Deparment of Motor Behavior, University of Tehran, Tehran, Iran
| | - C A Aiken
- Department of Kinesiology, New Mexico State University, Las Cruces, NM, USA.
| | - S Heidari
- Department of Physical Education, Payame Noor Unviersity (PNU), Tehran, Iran
| | - F Kochackpour
- Department of Physical Education, Semnan University, Semnan, Iran
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Li J, Triana CA, Wan W, Adiyeri Saseendran DP, Zhao Y, Balaghi SE, Heidari S, Patzke GR. Molecular and heterogeneous water oxidation catalysts: recent progress and joint perspectives. Chem Soc Rev 2021; 50:2444-2485. [DOI: 10.1039/d0cs00978d] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The recent synthetic and mechanistic progress in molecular and heterogeneous water oxidation catalysts highlights the new, overarching strategies for knowledge transfer and unifying design concepts.
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Affiliation(s)
- J. Li
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - C. A. Triana
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - W. Wan
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | | | - Y. Zhao
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - S. E. Balaghi
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - S. Heidari
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
| | - G. R. Patzke
- Department of Chemistry
- University of Zurich
- CH-8057 Zurich
- Switzerland
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Sharifzadeh N, Kharrazi H, Nazari E, Tabesh H, Edalati Khodabandeh M, Heidari S, Tara M. Health Education Serious Games Targeting Health Care Providers, Patients, and Public Health Users: Scoping Review. JMIR Serious Games 2020; 8:e13459. [PMID: 32134391 PMCID: PMC7082739 DOI: 10.2196/13459] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [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: 01/22/2019] [Revised: 09/07/2019] [Accepted: 12/12/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Serious educational games have shown effectiveness in improving various health outcomes. Previous reviews of health education games have focused on specific diseases, certain medical subjects, fixed target groups, or limited outcomes of interest. Given the recent surge in health game studies, a scoping review of health education games is needed to provide an updated overview of various aspects of such serious games. OBJECTIVE This study aimed to conduct a scoping review of the design and evaluation of serious educational games for health targeting health care providers, patients, and public (health) users. METHODS We identified 2313 studies using a unique combination of keywords in the PubMed and ScienceDirect databases. A total of 161 studies were included in this review after removing duplicates (n=55) and excluding studies not meeting our inclusion criteria (1917 based on title and abstract and 180 after reviewing the full text). The results were stratified based on games targeting health care providers, patients, and public users. RESULTS Most health education games were developed and evaluated in America (82/161, 50.9%) and Europe (64/161, 39.8%), with a considerable number of studies published after 2012. We discovered 58.4% (94/161) of studies aiming to improve knowledge learning and 41.6% (67/161) to enhance skill development. The studies targeted various categories of end users: health care providers (42/161, 26.1%), patients (38/161, 23.6%), public users (75/161, 46.6%), and a mix of users (6/161, 3.7%). Among games targeting patients, only 13% (6/44) targeted a specific disease, whereas a growing majority targeted lifestyle behaviors, social interactions, cognition, and generic health issues (eg, safety and nutrition). Among 101 studies reporting gameplay specifications, the most common gameplay duration was 30 to 45 min. Of the 61 studies reporting game repetition, only 14% (9/61) of the games allowed the users to play the game with unlimited repetitions. From 32 studies that measured follow-up duration after the game intervention, only 1 study reported a 2-year postintervention follow-up. More than 57.7% (93/161) of the games did not have a multidisciplinary team to design, develop, or assess the game. CONCLUSIONS Serious games are increasingly used for health education targeting a variety of end users. This study offers an updated scoping review of the studies assessing the value of serious games in improving health education. The results showed a promising trend in diversifying the application of health education games that go beyond a specific medical condition. However, our findings indicate the need for health education game development and adoption in developing countries and the need to focus on multidisciplinary teamwork in designing effective health education games. Furthermore, future health games should expand the duration and repetition of games and increase the length of the follow-up assessments to provide evidence on long-term effectiveness.
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Affiliation(s)
- Nahid Sharifzadeh
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Kharrazi
- Department of Health Policy and Management, Johns Hopkins School of Public Health, Baltimore, MD, United States
| | - Elham Nazari
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Tabesh
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Edalati Khodabandeh
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Somayeh Heidari
- Department of Medical Informatics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Tara
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Yaghootkar H, Abbasi F, Ghaemi N, Rabbani A, Wakeling MN, Eshraghi P, Enayati S, Vakili S, Heidari S, Patel K, Sayarifard F, Borhan‐Dayani S, McDonald TJ, Ellard S, Hattersley AT, Amoli MM, Vakili R, Colclough K. Type 1 diabetes genetic risk score discriminates between monogenic and Type 1 diabetes in children diagnosed at the age of <5 years in the Iranian population. Diabet Med 2019; 36:1694-1702. [PMID: 31276222 PMCID: PMC7027759 DOI: 10.1111/dme.14071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/03/2019] [Indexed: 12/24/2022]
Abstract
AIM To examine the extent to which discriminatory testing using antibodies and Type 1 diabetes genetic risk score, validated in European populations, is applicable in a non-European population. METHODS We recruited 127 unrelated children with diabetes diagnosed between 9 months and 5 years from two centres in Iran. All children underwent targeted next-generation sequencing of 35 monogenic diabetes genes. We measured three islet autoantibodies (islet antigen 2, glutamic acid decarboxylase and zinc transporter 8) and generated a Type 1 diabetes genetic risk score in all children. RESULTS We identified six children with monogenic diabetes, including four novel mutations: homozygous mutations in WFS1 (n=3), SLC19A2 and SLC29A3, and a heterozygous mutation in GCK. All clinical features were similar in children with monogenic diabetes (n=6) and in the rest of the cohort (n=121). The Type 1 diabetes genetic risk score discriminated children with monogenic from Type 1 diabetes [area under the receiver-operating characteristic curve 0.90 (95% CI 0.83-0.97)]. All children with monogenic diabetes were autoantibody-negative. In children with no mutation, 59 were positive to glutamic acid decarboxylase, 39 to islet antigen 2 and 31 to zinc transporter 8. Measuring zinc transporter 8 increased the number of autoantibody-positive individuals by eight. CONCLUSIONS The present study provides the first evidence that Type 1 diabetes genetic risk score can be used to distinguish monogenic from Type 1 diabetes in an Iranian population with a large number of consanguineous unions. This test can be used to identify children with a higher probability of having monogenic diabetes who could then undergo genetic testing. Identification of these individuals would reduce the cost of treatment and improve the management of their clinical course.
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Affiliation(s)
- H. Yaghootkar
- Genetics of Complex TraitsUniversity of Exeter Medical School, Royal Devon & Exeter HospitalExeterUK
| | - F. Abbasi
- Growth and Development Research CentreTehran University of Medical SciencesTehranIran
| | - N. Ghaemi
- Department of Paediatric DiseaseFaulty of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - A. Rabbani
- Growth and Development Research CentreTehran University of Medical SciencesTehranIran
| | - M. N. Wakeling
- Institute of Biomedical and Clinical ScienceUniversity of Exeter Medical SchoolExeterUK
| | - P. Eshraghi
- Department of Paediatric DiseaseFaulty of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - S. Enayati
- Metabolic Disorders Research CentreEndocrinology and Metabolism Molecular-Cellular Sciences InstituteTehran University of Medical SciencesTehranIran
| | - S. Vakili
- Medical Genetics Research CentreMashhad University of Medical SciencesMashhadIran
| | - S. Heidari
- Growth and Development Research CentreTehran University of Medical SciencesTehranIran
| | - K. Patel
- Institute of Biomedical and Clinical ScienceUniversity of Exeter Medical SchoolExeterUK
| | - F. Sayarifard
- Growth and Development Research CentreTehran University of Medical SciencesTehranIran
| | - S. Borhan‐Dayani
- Metabolic Disorders Research CentreEndocrinology and Metabolism Molecular-Cellular Sciences InstituteTehran University of Medical SciencesTehranIran
| | - T. J. McDonald
- Institute of Biomedical and Clinical ScienceUniversity of Exeter Medical SchoolExeterUK
- Departments of Clinical BiochemistryRoyal Devon and Exeter NHS Foundation TrustExeterUK
| | - S. Ellard
- Institute of Biomedical and Clinical ScienceUniversity of Exeter Medical SchoolExeterUK
- Departments of Clinical BiochemistryRoyal Devon and Exeter NHS Foundation TrustExeterUK
| | - A. T. Hattersley
- Institute of Biomedical and Clinical ScienceUniversity of Exeter Medical SchoolExeterUK
| | - M. M. Amoli
- Metabolic Disorders Research CentreEndocrinology and Metabolism Molecular-Cellular Sciences InstituteTehran University of Medical SciencesTehranIran
| | - R. Vakili
- Department of Paediatric DiseaseFaulty of Medicine, Mashhad University of Medical SciencesMashhadIran
- Medical Genetics Research CentreMashhad University of Medical SciencesMashhadIran
| | - K. Colclough
- Departments of Molecular GeneticsRoyal Devon and Exeter NHS Foundation TrustExeterUK
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Asadi Z, Shafiee M, Sadabadi F, Heidari-Bakavoli A, Moohebati M, Khorrami MS, Darroudi S, Heidari S, Hoori T, Tayefi M, Mohammadi F, Esmaeily H, Safarian M, Ghayour-Mobarhan M, Ferns GA. Association of dietary patterns and risk of cardiovascular disease events in the MASHAD cohort study. J Hum Nutr Diet 2019; 32:789-801. [PMID: 31332855 DOI: 10.1111/jhn.12669] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 12/13/2022]
Abstract
BACKGROUND Cardiovascular disease (CVD) is the principal cause of mortality and disability in Iranian adults. We aimed to evaluate the relationship between dietary patterns and CVD incidence in a large sample of adults in northeastern Iran. METHODS The present study comprised a prospective study of 5706 CVD-free men and women aged 35-65 years who participated in a cohort study. All of the participants were followed up for a 6-year period. Dietary patterns were derived from a 65-item validated food frequency questionnaire and the factor analysis method was used to determine dietary patterns. RESULTS We identified two major dietary patterns: (i) a Balanced dietary pattern (a high intake of green leafy vegetables, other vegetables, fruits, dairy products, red meats, poultry, seafoods, legumes and nuts, as well as a low intake of sugar) and (ii) a Western dietary pattern (a high intake of sugar, tea, egg, snacks, fast foods, potato, carbonated beverages, pickled foods, organs meat and butter) by factor analysis. The hazard ratio (HR) and 95% confidence intervals (CIs) of total CVD in the highest versus lowest tertiles of the Balanced pattern were 1.29 (95% CI = 0.67-2.47; P = 0.44). The HR and 95% CIs of CVD in the highest versus lowest tertiles of Western pattern were 2.21 (95% CI = 1.08-4.45; P = 0.03). CONCLUSIONS During the 6-year follow-up, we found that adherence to a Balanced dietary pattern was not significantly associated with CVD events. However, adherence to a Western dietary pattern was associated with a significantly increased risk of CVD events and its associated risk.
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Affiliation(s)
- Z Asadi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Shafiee
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - F Sadabadi
- Department of Modern Sciences and Technologies, Faculty of medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Heidari-Bakavoli
- Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Moohebati
- Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M S Khorrami
- Department of Modern Sciences and Technologies, Faculty of medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S Darroudi
- Department of Modern Sciences and Technologies, Faculty of medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - S Heidari
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - T Hoori
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | - M Tayefi
- Clinical Research Unit, Mashhad University of Medical Sciences, Mashhad, Iran
| | - F Mohammadi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - H Esmaeily
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Safarian
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - G A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Brighton, Sussex, UK
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Heidari S, Derakhshandeh A, Firouzi R, Ansari-Lari M, Masoudian M, Eraghi V. Molecular detection of Chlamydophila abortus, Coxiella burnetii, and Mycoplasma agalactiae in small ruminants' aborted fetuses in southern Iran. Trop Anim Health Prod 2017; 50:779-785. [PMID: 29260491 DOI: 10.1007/s11250-017-1494-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 12/06/2017] [Indexed: 11/27/2022]
Abstract
Abortion in sheep and goats has become increasingly important worldwide because of the significant economic losses and potential zoonotic implication of commonly involved pathogens. Therefore, this cross-sectional study was conducted in southern Iran to detect the Chlamydophila abortus and Coxiella burnetii, as zoonotic pathogens, and Mycoplasma agalactiae, as a neglected abortifacient agent in small ruminants' aborted fetuses, by using polymerase chain reaction (PCR). From a total of 300 aborted fetuses (183 sheep and 117 goats), 46 samples (15.5%) were positive by PCR, 11% for C. abortus, 2% for C. burnetii, and 3% for M. agalactiae. Also, the association of suggested risk factors with abortion due to these bacterial agents was investigated using univariable and multivariable logistic regression. Results of the statistical analysis showed significant association of C. abortus with flock size (OR = 2.82, P = 0.014), season (P < 0.05), and the number of pregnancy in the aborted dam (OR = 2.5, P = 0.05). Our results indicated that C. abortus has a relatively substantial role in small ruminant abortions, and C. burnetii and M. agalactiae are likely important abortifacient agents in our region, too. Regarding veterinary and/or public health importance of these bacterial agents, more attention from veterinary and/or human health services and, maybe, a surveillance system for control and prevention of them are recommended.
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Affiliation(s)
- S Heidari
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731, Iran
| | - Abdollah Derakhshandeh
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731, Iran.
| | - R Firouzi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731, Iran
| | - M Ansari-Lari
- Department of Food Hygiene and Public Health, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - M Masoudian
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731, Iran
| | - V Eraghi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, 71345-1731, Iran
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Heidari S, Taromchi A, Nejatbakhsh R, Shokri S. Expression and localisation of RXFP3 in human spermatozoa and impact of INSL7 on sperm functions. Andrologia 2017; 50. [DOI: 10.1111/and.12928] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2017] [Indexed: 02/06/2023] Open
Affiliation(s)
- S. Heidari
- Department of Medical Genetics and Molecular Medicine; Faculty of Medicine; Zanjan University of Medical Sciences (ZUMS); Zanjan Iran
| | - A.H. Taromchi
- Department of Medical Biotechnology and Nanotechnology; Faculty of Medicine; Zanjan University of Medical Sciences (ZUMS); Zanjan Iran
| | - R. Nejatbakhsh
- Department of Anatomical Sciences; Faculty of Medicine; Zanjan University of Medical Sciences (ZUMS); Zanjan Iran
| | - S. Shokri
- Department of Anatomical Sciences; Faculty of Medicine; Zanjan University of Medical Sciences (ZUMS); Zanjan Iran
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Heidari S, Berjis K, Ahmadi L. The comparison of mental health and marital satisfaction of fertile and infertile women referred to infertility center of Jahad Daneshgahi In Qom. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
IntroductionInfertility is a complex issue that affects individuals’ mental health. Also marital satisfaction can be affected by fertility status of couples. Then, it is one of the most important features of life satisfaction. So, the study of mental health and marital satisfaction of infertile and fertile women is considerable.ObjectivesThis research has been done with the aim of study and comparison of marital satisfaction level and mental health of the women who have infertility problem with those who does not have this problem.MethodIn total, 180 persons (90 infertile women and 90 fertile women) were participating in this study. Participants were comprised of those referring to infertility center of Jahad Daneshgahi in Qom. They filled the general health questionnaire (GHQ) and enrich marital satisfactions questionnaire have been used. Acquired information analyzed with the independent t-tests and one-way variance analysis.ResultsResults showed infertile women have less mental health rather than fertile women and also according to results, there was significant difference in satisfaction level of the fertile and infertile women. The number of unsuccessful pregnancies whether in fertile women or infertile women didnot have considerable effect on the marital satisfaction, while, effect of this factor on marital satisfaction level of the infertile women was higher than that on the fertile women.ConclusionGenerally, by inclusion of limitations in this plan, it is inevitable to emphasize on negative consequences of the infertility on spouses’ life and it is important to pay attention to its different dimensions.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Mirabzadeh Ardakani H, Heidari S, Sefidgaran B. The Study of Relationship Between Personality Traits and Job Satisfaction in Iran Khodro Company Experts in Iran. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Job satisfaction among employees is a crucial issue in an organization and employer plays a vital role to fulfill their needs. Keeping job satisfaction high among workers can be of tremendous benefit to any organization, as happy employees will be more likely to produce work effectively. It has been assumed that personality traits can play an important role in people's dealing with the environmental issues such as work situations. By assuming this effectiveness, the main aim of this essay is to study the relationship between personality traits and job satisfaction. Explaining job satisfaction by using personality traits can enlighten weather job satisfaction depends only on type of organization or on some personality traits. In this regard, present study has investigated the relationship between job satisfaction and personality traits among Iran Khodro Company expert staff. To do so personality characteristics were measured by NEO-PI-R scale and job satisfaction was measured by Job Descriptive Index (JDI scale) that filled by experts of “Iran Khodro” company (111 men and women). Pearson correlation used to analyze the data. Results show that, neuroticism/emotional stability was associated with low job satisfaction (r = −0/713, P < 0/01). Also conscientiousness (r = 0/620) and agreeableness (r = 0/476) was significantly correlated with job satisfaction (P < 0/01). But the relationship between extraversion (r = −0/025) and openness to experience (r = 0/061) with job satisfaction was not significant. In addition, the results of this study emphasis on the effective role of age (r = −0/301) and job background (r = −0/330) on job satisfaction. But relationship between sexuality (r = 0/183) and marriage (r = 0/125) with job satisfaction was not significant.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Heidari S, Hojati Z, Motovali-Bashi M. Screening of Two Neighboring CFTR Mutations in Iranian Infertile Men with Non-Obstructive Azoospermia. Int J Fertil Steril 2016; 10:390-394. [PMID: 28042420 PMCID: PMC5134755 DOI: 10.22074/ijfs.2016.4593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 07/24/2016] [Indexed: 11/06/2022]
Abstract
The genetic association between cystic fibrosis transmembrane conductance regulator
(CFTR) gene mutations and male infertility due to congenital bilateral absence of vas
deferens (CBAVD) is well established. Mutant CFTR, however may also be involved in
the etiology of male infertility in non-CBAVD cases. The present study was conducted
to estimate the frequency of ∆I507 and ∆F508 CFTR gene mutations in Iranian infertile
males. We undertook the first study of association between these CFTR mutations and
non-obstructive azoospermia in Iran.
In this case-control study, 100 fertile healthy fathers and 100 non-obstructive azoospermia’s
men were recruited from Isfahan Infertility Center (IIC) and Sari Saint Mary’s Infertility Center,
between 2008 and 2009. Screening of F508del and I507del mutations was
carried out by the multiplex-ARMS-PCR. Significance of differences in mutation frequencies
between the patient and control groups was assessed by Fisher’s exact test. The
ΔF508 was detected in three patients. However there are no significant association was
found between the presence of this mutated allele and infertility [OR=9.2 (allele-based)
and 7.2 (individual-based), P=0.179]. None of the samples carried the ΔI507 mutation.
Altogether, we show that neither ΔI507 nor ΔF508 is involved in this population of Iranian infertile males with non-obstructive azoospermia.
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Affiliation(s)
- Somayeh Heidari
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Zohreh Hojati
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
| | - Majid Motovali-Bashi
- Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
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Kioomars S, Heidari S, Malaekeh-Nikouei B, Shayani Rad M, Khameneh B, Mohajeri SA. Ciprofloxacin-imprinted hydrogels for drug sustained release in aqueous media. Pharm Dev Technol 2016; 22:122-129. [DOI: 10.1080/10837450.2016.1230131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sajedeh Kioomars
- Students Research Committee, Department of Food and Drug Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Somayeh Heidari
- Students Research Committee, Department of Food and Drug Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bizhan Malaekeh-Nikouei
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Shayani Rad
- Students Research Committee, Department of Food and Drug Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahman Khameneh
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ahmad Mohajeri
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Heidari S, Taheri M, Pouyandeh Ravan A, Moghimbeigi A, Mojiri M, Naderi-Khojastehfar Y, Paydari-Banyarani S, Hassanpour Z, Eftekharian M. Assessment of some Immunological and Hematological Factors among Radiation Workers. ACTA ACUST UNITED AC 2016. [DOI: 10.15412/j.jbtw.01050702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Komaki A, Hashemi-Firouzi N, Shojaei S, Souri Z, Heidari S, Shahidi S. Study the Effect of Endocannabinoid System on Rat Behavior in Elevated Plus-Maze. Basic Clin Neurosci 2015; 6:147-53. [PMID: 26904171 PMCID: PMC4656987] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Previous studies have shown that cannabinoidergic system is involved in anxiety. However, there are controversial reports in the experimental studies. The aim of this study is to evaluate the effect of pharmacological stimulation or blocking of CB1 receptors and inhibition of endocannabinoid degradation in anxiety like behavior in elevated plus-maze (EPM) test in rat. The EPM is one of the most widely used animal models of anxiety. METHODS Male Wistar rats were randomly allocated to ten groups. Different groups of animals intraperitoneally received Win-55212 (0.3, 1 and 5 mg/kg) as CB1 receptor agonist, AM-251 (0.3, 1 and 5 mg/kg) as CB1 receptor antagonist, URB-597 (0.03, 0.1 and 0.3 mg/kg) as endocannabinoid breakdown inhibitor or saline (as control group) 30 min before submitting into EPM test. RESULTS The results showed that compared to the control group, Win-55212 (1 and 5 mg/kg) and URB-597 (0.1 and 0.3 mg/kg) significantly increased both of the time and percentage of entries into open arms. AM-251 (1 and 5 mg/kg) significantly decreased the time and percentage of entries into open arms in the EPM test. These substances have no effects on the total distance covered by animals and number of closed arm entries. DISCUSSION It is concluded that activation of cannabinoid receptor exert anxiolytic effect while blocking of cannabinoid receptor resulted in anxiety behavior. The locomotor activity was not significantly changed by cannabinoid system. It is suggested that potentiation of cannabinoid system may be therapeutic strategy for the anxiety behavior.
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Affiliation(s)
- Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran,Corresponding Author: Alireza Komaki, PhD, Address: Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. Tel.: +98 (811) 8380315 Fax:+98 (811) 8380208, E-mail:
| | | | - Shiva Shojaei
- Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Zobin Souri
- Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Somayeh Heidari
- Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Siamak Shahidi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Salehi P, Heidari S, Tanideh N, Torkan S. Effect of low-level laser irradiation on the rate and short-term stability of rotational tooth movement in dogs. Am J Orthod Dentofacial Orthop 2015; 147:578-86. [DOI: 10.1016/j.ajodo.2014.12.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 12/01/2014] [Accepted: 12/01/2014] [Indexed: 11/26/2022]
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Shirani K, Hassani FV, Razavi-Azarkhiavi K, Heidari S, Zanjani BR, Karimi G. Phytotrapy of cyclophosphamide-induced immunosuppression. Environ Toxicol Pharmacol 2015; 39:1262-1275. [PMID: 26026872 DOI: 10.1016/j.etap.2015.04.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [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: 01/11/2015] [Revised: 04/16/2015] [Accepted: 04/18/2015] [Indexed: 06/04/2023]
Abstract
Cyclophosphamide (CP) is a cytotoxic drug that can suppress both humoral and cellular immunity. Combining traditional medicinal herbs and chemotherapy drugs are used to improve immunity and quality of life performance status. In this paper, the effects of plant extracts, active components and their derivatives on immunosuppression of CP are discussed. Appropriate keywords were used to search through PubMed, Google Scholar, and Sciverse. All relevant results published from 1990 to date were chosen for final review. Over 50 references were found in which plant extracts, active components and their derivatives have been tested for their immune protective effects against CP-induced immune toxicity. Although there are several plants shown to be effective in animal models, no study was carried out on human subjects. According to the results; we can claim that plants and their active ingredients are good candidates for alternative adjuvant chemotherapy in reducing the immunotoxicity of CP.
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Affiliation(s)
- Kobra Shirani
- Department of Pharmacodynamy and Toxicology, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Faezeh Vahdati Hassani
- Department of Pharmacodynamy and Toxicology, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kamal Razavi-Azarkhiavi
- Department of Pharmacodynamy and Toxicology, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Somayeh Heidari
- Department of Pharmacodynamy and Toxicology, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bamdad Riahi Zanjani
- Medical Toxicology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Karimi
- Medical Toxicology Research Center and Pharmacy School, Mashhad University of Medical Sciences, Mashhad, Iran.
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Oshagh M, Khajeh F, Heidari S, Torkan S, Fattahi HR. The effect of different environmental factors on force degradation of three common systems of orthodontic space closure. Dent Res J (Isfahan) 2015; 12:50-6. [PMID: 25709675 PMCID: PMC4336972 DOI: 10.4103/1735-3327.150331] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 11/16/2022] Open
Abstract
Background: Different environmental conditions, such as high temperature or exposure to some chemical agents, may affect the force decay of different methods of space closure during orthodontic treatment. The aim of this in vitro study was to evaluate the force decay pattern in the presence of tea as a popular drink in some parts of the world and two mouthwashes that are usually prescribed by the orthodontist once the treatment is in progress. Materials and Methods: Elastic chain (EC), nickel-titanium (Ni-Ti) closed coil spring and tie-back (TB) method were used as the means of space closure. The specimens were placed in five different media: Hot tea, hot water (65°), chlorhexidine mouthwash, fluoride mouthwash and the control group (water at 37°). The specimens were stretched 25 mm and the elastic force of three systems was measured at the beginning of the study, after 24 h, after 1 week and after 3 weeks. One-way ANOVA was used to compare the results between the groups and Duncan test was carried out to compare the sets of means in different groups (P ≤ 0.05). Results: Tea increases the force decay in the EC and TB groups. Oral mouthwashes also resulted in more rapid force decay than the control group. EC and Ni-Ti groups were not much affected in the presence of oral mouthwashes. Conclusion: Regarding the immersion media, TB method showed the biggest variation in different media and Ni-Ti coil spring was least affected by the type of media.
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Affiliation(s)
- Morteza Oshagh
- Orthodontic Research Center and Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farzaneh Khajeh
- Orthodontic Research Center and Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Somayeh Heidari
- Department of Orthodontic Research Center and Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Bushehr, Iran
| | - Sepideh Torkan
- Orthodontic Research Center and Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamid Reza Fattahi
- Orthodontic Research Center and Department of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
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Derakhshandeh A, Firouzi R, Motamedifar M, Motamedi Boroojeni A, Bahadori M, Arabshahi S, Novinrooz A, Heidari S. Distribution of virulence genes and multiple drug-resistant patterns amongst different phylogenetic groups of uropathogenic Escherichia coli isolated from patients with urinary tract infection. Lett Appl Microbiol 2014; 60:148-154. [PMID: 25355175 DOI: 10.1111/lam.12349] [Citation(s) in RCA: 17] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/12/2014] [Accepted: 10/22/2014] [Indexed: 12/29/2022]
Abstract
A total of 85 Uropathogenic Escherichia coli (UPEC) isolates were screened against ceftiofur, oxacillin, nitrofurantoin and lincospectin using Kirby-Bauer disc diffusion method, following CLSI guidelines. Prevalence of virulent factor genes amongst the isolates was determined by PCR, using gene-specific primers against the different virulent factors. Statistical analysis of the data was performed using SPSS software. The prevalence of traT, ompT, Iss, malX and ibeA genes was 47.1%, 38.8%, 20%, 16.5% and 9.4%, respectively. The most prevalent gene in group A and D was traT, whilst in group B2 was Iss. The highest resistance has been shown against oxacillin (98.8%), followed by ceftiofur (77.6%), whilst resistance to lincospectin (2.4%) and nitrofurantoin (12.9%) had the lowest frequencies. Multidrug resistance was shown in 82.35% of the isolates, whilst this study recommend lincospectin and nitrofurantoin as choice drugs for treatment, but more investigation of the bacterial pathogenicity associated with urinary tract infection (UTI) may contribute to a better medical intervention.
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Affiliation(s)
- A Derakhshandeh
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - R Firouzi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - M Motamedifar
- Department of Bacteriology & Virology, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A Motamedi Boroojeni
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - M Bahadori
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - S Arabshahi
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - A Novinrooz
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - S Heidari
- Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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Torkan S, Oshagh M, Khojastepour L, Shahidi S, Heidari S. Clinical and radiographic comparison of the effects of two types of fixed retainers on periodontium - a randomized clinical trial. Prog Orthod 2014; 15:47. [PMID: 25162332 PMCID: PMC4145221 DOI: 10.1186/s40510-014-0047-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 06/12/2014] [Indexed: 11/10/2022] Open
Abstract
Background Most orthodontists believe that fixed retainers are necessary to maintain ideal dental relationships. However, untoward side effects might result from their long-term placement. The aim of this study was to evaluate the clinical and radiographic effect of two commonly used fixed retainers on the health of the periodontium. Methods Thirty patients were randomly divided into two groups to receive either a fiber-reinforced composite retainer or a spiral wire retainer extended on the lingual surfaces of both maxillary and mandibular arches from canine to canine. Periapical radiographs were obtained from the patients at the time of placement of the retainers and after the 6-month period to assess the radiographic conditions of the periodontium. Clinical examination was carried out at the same two time intervals. Results Even though there were no significant differences between the two groups of study at the beginning of the trial, there were statistically significant differences after the 6-month follow-up regarding the main outcomes of the study. Nearly all indices showed to deteriorate after 6 months in the fiber-reinforced group, while in the spiral wire group, this was not the case. As for the secondary outcomes, radiographic examination did not reveal any statistically significant differences after 6 months or between the two groups. Conclusions It can be concluded that spiral wire retainers elicit less detrimental periodontal response in the short-term follow-up compared to fiber-reinforced composite retainers as revealed by the primary outcomes of the study. Trial registration ClinicalTrials.gov: NCT01314729 Electronic supplementary material The online version of this article (doi:10.1186/s40510-014-0047-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sepideh Torkan
- Orthodontics Department, Shiraz University of Medical Sciences, Shiraz Orthodontic Research Center, Shiraz, 71345, Iran.
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Heidari S, Torkan S. Laser applications in orthodontics. J Lasers Med Sci 2013; 4:151-158. [PMID: 25606324 PMCID: PMC4282003] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A laser is a collimated single wavelength of light which delivers a concentrated source of energy. Soon after different types of lasers were invented, investigators began to examine the effects of different wavelengths of laser energy on oral tissues, routine dental procedures and experimental applications. Orthodontists, along with other specialist in different fields of dentistry, can now benefit from several different advantages that lasers provide during the treatment process, from the beginning of the treatment, when separators are placed, to the time of resin residues removal from the tooth surface at the end of orthodontic treatment. This article outlines some of the most common usages of laser beam in orthodontics and also provides a comparison between laser and other conventional method that were the standard of care prior to the advent of laser in this field.
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Affiliation(s)
- Somayeh Heidari
- Department of Orthodontics, Faculty of Dentistry, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Sepideh Torkan
- Department of Orthodontics, Faculty of Dentistry, Lorestan University of Medical Sciences, Khorram Abad, Iran
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Torkan S, Heidari S, Pakshir H. The association of oral health-related quality of life and self-perceived esthetic impairment with orthodontic treatment seeking. Orthodontics (Chic.) 2012; 13:226-233. [PMID: 22567636] [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: 05/31/2023]
Abstract
AIM To assess oral health-related quality of life (OHRQOL) and self-perceived esthetic impairment in patients seeking orthodontic treatment and to compare them with peers in the same age group who had never undergone orthodontic treatment. A correlation between OHRQOL and lower self-perceived esthetic impairment was also searched for. METHODS The sample comprised 209 individuals (12 to 20 years of age), of whom 110 were about to receive or had already started orthodontic treatment at Shiraz Dental School, Shiraz, Iran, (orthodontic group) and 99 participants who had never received orthodontic treatment (control group). OHRQOL was recorded with the validated Persian version of the short form of the Oral Health Impact Profile. The aesthetic component (AC) of the Index of Orthodontic Treatment Need (IOTN) instrument was used to record examiner and self-perceived esthetic impairment in both groups. RESULTS The Mann-Whitney test revealed that the orthodontic group had significantly worse OHRQOL than the control group (P = .005). The former group also had significantly higher self-perceived IOTN AC scores (P < .00). The weighted Kappa test was used to report the agreement between the examiner and self-perceived esthetic impairment. No significant intersex differences were found in either group. The Spearman correlation coefficient showed a significant correlation between higher IOTN AC scores and worse OHRQOL (P = .007) in the control group. No such correlation was found in the treatment group. CONCLUSION Individuals who sought orthodontic treatment had higher self-perceived IOTN AC scores and worse OHRQOL than the control group.
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Affiliation(s)
- Sepideh Torkan
- Shiraz Orthodontic Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. spideh,
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Vanani SK, Heidari S, Avaji M. A Low-cost Numerical Algorithm for the Solution of Nonlinear Delay Boundary Integral Equations. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jas.2011.3504.3509] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Heidari S, Azadfallah P, Rasoolzade Tabatabaei K. P02-95 - “The analyze of stressors, coping styles and mental health in infertile men and women”. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70738-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Shirani S, Kelishadi R, Sarrafzadegan N, Khosravi A, Sadri G, Amani A, Heidari S, Ramezani MA. Awareness, treatment and control of hypertension, dyslipidaemia and diabetes mellitus in an Iranian population: the IHHP study. East Mediterr Health J 2009; 15:1455-1463. [PMID: 20218138] [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: 05/28/2023]
Abstract
We used data from the baseline survey from the Isfahan Healthy Heart Programme to determine the prevalence of hypertension, dyslipidaemia and diabetes among a representative samples of 12,514 adults living in 3 cities in the Islamic Republic of Iran. The prevalence of hypertension, dyslipidaemia and diabetes was 17.3%, 66.3% and 5.6% respectively. Awareness, treatment and control of hypertension were 40.3%, 35.3%, and 9.1% respectively. The rates for dyslipidaemia were 14.4%, 7.1% and 6.5% respectively, and 54.6% of diabetics were aware of their disease and 46.2% were under treatment.
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Affiliation(s)
- S Shirani
- lsfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
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Kelishadi R, Derakhshan R, Sabet B, Sarraf-Zadegan N, Kahbazi M, Sadri GH, Tavasoli AA, Heidari S, Khosravi A, Amani A, Tolouei HR, Bahonar A, Rezaei AA, Moatarian A. The metabolic syndrome in hypertensive and normotensive subjects: the Isfahan Healthy Heart Programme. Ann Acad Med Singap 2005; 34:243-9. [PMID: 15902345] [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: 05/02/2023]
Abstract
INTRODUCTION There are numerous correlations between hypertension and the metabolic syndrome, although this is not always the case. The objective of this study was to compare the prevalence of the metabolic syndrome and its different phenotypes among hypertensive and normotensive subjects. MATERIALS AND METHODS This cross-sectional study was performed on a representative sample of adults living in 3 cities in Iran. Among the 12,514 subjects selected by multi-stage random sampling, 1736 (13.9%) were hypertensive. The prevalence of the metabolic syndrome [according to the Adult Treatment Panel (ATP) III criteria] was significantly higher in hypertensive than normotensive subjects (51.6% versus 12.9%, respectively; OR, 7.15; 95% CI, 6.4 to 7.9). The metabolic syndrome was more prevalent in normotensive and hypertensive subjects living in urban areas than those living in rural areas (14.2% and 53.9% versus 9.5% and 45.6%, respectively, P < 0.05). The mean age of hypertensive subjects, with or without the metabolic syndrome, was not significantly different (55.7 +/- 12 years versus 55.4 +/- 15.5 years, P = 0.6). Hypertension with the metabolic syndrome was more prevalent in women than men (72% versus 28% respectively, P < 0.000), and in subjects living in urban areas than those in rural areas (75.1% versus 24.9%, respectively, P = 0.002). CONCLUSION The findings of this study indicate the need for metabolic screening in all hypertensive patients, and emphasise the importance of promoting primary and secondary prevention of high blood pressure and associated modifiable risk factors in order to counter the upcoming epidemic of non-communicable disease in developing countries.
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Affiliation(s)
- R Kelishadi
- Isfahan Cardiovascular Research Centre, Iran.
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Smith G, Heidari S, Suherman P, Bell R. Characterization of film-coated aerosol canisters using electrochemical impedance spectroscopy. Drug Dev Ind Pharm 2002; 28:151-6. [PMID: 11926359 DOI: 10.1081/ddc-120002448] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Drug adhesion to the walls of an aerosol canister can be prevented/reduced by coating the canister with a hydrophobic polymer (e.g., a fluoropolymer). In this study, three batches of fluoropolymer-coated canisters were investigated by electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). The EIS technique showed that only one of the batches presented as a monolithic, non-porous film. The other two batches were either partially porous or highly porous. Scanning electron micrographs showed evidence of cracks, within the films, but could not alone establish the porous nature of these defects. For the non-porous and partly porous films it was possible to use the EIS data to determine the approximate film thickness. Estimates of 2-4 microm were obtained for the mean film thickness. These values compared favorably with micrometer estimates obtained following acid dissolution of the aluminum canister. It remains to be seen whether the properties of the films (i.e., the porosity and film thickness, determined by EIS) translate to differences in drug adhesion. Nevertheless, the EIS technique was shown to be a powerful, non-destructive method that lends itself to the rapid analysis of batch-to-batch variation in film-coated canisters.
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Affiliation(s)
- G Smith
- School of Pharmacy and Pharmaceutical Sciences, De Montfort University, Leicester, UK.
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28
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Heidari S, Krauzewicz N, Kalantari M, Vlastos A, Griffin BE, Dalianis T. Persistence and tissue distribution of DNA in normal and immunodeficient mice inoculated with polyomavirus VP1 pseudocapsid complexes or polyomavirus. J Virol 2000; 74:11963-5. [PMID: 11090197 PMCID: PMC112480 DOI: 10.1128/jvi.74.24.11963-11965.2000] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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] Open
Abstract
Introduction of DNA into normal and immunodeficient mice, alone or in complex with VP1 pseudocapsids, has been compared to DNA transfer by viral infection. Similar to natural infection and in contrast to plasmid alone, VP1 pseudocapsids efficiently introduced DNA, which remained for months in normal mice and possibly longer in B- and T-cell-deficient mice.
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Affiliation(s)
- S Heidari
- Division of Experimental Oncology, Karolinska Institute, Radiumhemmet, SE-171 76 Stockholm, Sweden.
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29
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Heidari S, Berke Z, Berglöf A, Woldegiorgis A, Smith CI, Dalianis T. Susceptibility to polyoma virus tumorigenesis in X-linked immunodeficient (XID) and B-cell deficient (microMT) mice is not increased. In Vivo 1999; 13:439-44. [PMID: 10757034] [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: 02/16/2023]
Abstract
Polyoma virus induced tumorigenesis is controlled by T-cells, while B-cells clear virus infection. In order to study if T-cells can override the tumorigenic effect of a long term disseminated viral infection, the tumorigenicity and persistence of polyoma virus in antibody deficient adult and newborn infected X-linked immunodeficient (XID) and microMT mice was followed. In newborn infected XID and CBA control mice (sensitive to tumorigenesis), the frequency of tumor development was similar, and viral DNA was persistent at least 10 months p.i. In polyoma-infected newborn and adult microMT, and control C57BL/6 mice (resistant to tumorigenesis) as well as in adult XID and CBA control mice, no polyoma tumors were observed. Nevertheless, viral DNA was detected in most tissues in all microMT mice throughout the 5-7 month observation period, whereas in the remaining groups of mice persistent viral infection was limited or not detected. We suggest that the tumorigenic potential of an extensive persistent polyoma virus infection can be overcome as long as a functional T-cell system is present.
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Affiliation(s)
- S Heidari
- Dept. of Oncology/Pathology, Karolinska Institute, Stockholm, Sweden
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30
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Berke Z, Mellin H, Heidari S, Wen T, Berglöf A, Klein G, Dalianis T. Adult X-linked immunodeficiency (XID) mice, IGM-/- single knockout and IGM-/- CD8-/- double knockout mice do not clear polyomavirus infection. In Vivo 1998; 12:143-8. [PMID: 9627794] [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: 02/07/2023]
Abstract
The importance of antibodies for elimination of polyomavirus infection and the prevention of virus induced oncogenesis was studied, X-linked immunodeficiency (XID) mice, IgM-/- single knockout and IgMI-/- CD8-/- double knockout mice, all defective in antibody production, and normal control mice were infected with polyomavirus as adults. The mice were followed for presence of polyoma DNA with a polyoma specific polymerase chain reaction (PCR) over 6 weeks post infection (p.i.), a time point at which polyomavirus DNA is no longer detected in normal adult infected mice. As expected, virus DNA was not detected in normal mice 6 weeks p.i. In both IgM-/- single knockout and IgM-/- CD8-/- double knockout mice a disseminated infection was still observed by 6 weeks p.i. and the latter group of mice succumbed around two months p.i. In XID mice, only one third of the mice were still positive for viral DNA 6 weeks p.i. No polyomavirus induced tumors were observed in any of the mice during the 2-4 month observation period.
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Affiliation(s)
- Z Berke
- Department of Immunology, Microbiology, Pathology and Infectious Diseases, Karolinska Institutet, Stockholm, Sweden
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31
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Hahn N, Felix R, Sonnenfeld A, Babour A, Heidari S. [The effect of a dimenhydrinate combination of the cardiovascular system and cerebral blood circulation in the anaesthetized dog]. Arzneimittelforschung 1975; 25:208-13. [PMID: 235268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The influence of Vertigo-Vomex (VV) and Vertigo-Vomex Retard (VVR) on the perfusion rate of the a. carotis interna and on the peripheral circulation was tested in 30 anaesthetized dogs. These drugs represent beta-dimethylamino-ethyl-benzhydrylether-1,3-dimethyl-8-chloroxanthine (dimenhydrinate, Vomex A) with the addition of pyridine-3-carbonic acid (nicotinic acid, niacin) and pyridoxine-HCl (vitamin B6) and its retard preparation. A) Angiographic researches of the brain vessels after i.v. injection of VV. B) Perfusion rate in the a. carotis int. by electromagnetic flowmeter; measurements of blood pressure, heart rate, and acid-base balance; reactions after injection of niacin, dimenhydrinate, and pyridoxine-HCl as well as after a combination of both. C) Same measurements as in B but after oral application. In one out of four cases there was a dilation of the brain vessels, in two cases there was a small one, in one case there was none. Niacin induces a short-lasting augmentation of the perfusion rate in the a. carotis int. simultaneously with rising aortic blood pressure. Dimenhydrinate with pyridoxine-HCl slightly increases the heart rate. Combined with niacin the perfusion rate shortly increases immediately after injection of niacin without any rise of blood pressure but combined with a fall in blood pH and standard bicarbonate. After oral application of VVR there was a slight but not significant augmentation of the perfusion rate in the a. carotis int. combined with rising blood pressure but with no change of the blood pH. Therefore the certain intivertigineous effect of VV and VVR cannot be explained by a rise of the perfusion rate in the inner ear or in the brain. In view of our results the central effect of dimenhydrinate combined with niacin and pyridoxine-HCl hypothetically may be improved by metabolic influences on the cells and their membranes.
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