1
|
McCauley ST, Irwin C, Traube B, Khan MK, Sadeghi A, Stea B, Hamilton RJ, Walker GV. Burnout Rates in Clinical Radiation Oncology and Variations across Professional Subgroups. Int J Radiat Oncol Biol Phys 2023; 117:e533-e534. [PMID: 37785653 DOI: 10.1016/j.ijrobp.2023.06.1818] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Physician and medical professional burnout has emerged as an important issue in clinical medicine and has been shown to negatively affect patient outcomes. The aim of this study is to determine how rates of burnout vary between different radiation oncology professional subgroups. MATERIALS/METHODS Participants were selected from those employed in one of the professional subgroups (radiation therapists, nurses, physicists, dosimetrists, and physicians) at two institutions that cover a total of seven sites. 126 individuals were recruited to participate. In addition to demographics, participants were asked to respond to questions regarding professional burnout utilizing the Maslach Burnout Inventory (MBI). Responses were on a seven-point Likert scale with subcategories of Exhaustion, Depersonalization, and Personal Achievement. Each participant's score per subcategory was categorized as either low, moderate, or high. For our primary outcome, frequencies and proportions were reported and Fisher's Exact Test was used to evaluate whether there was a statistically significant difference in proportions in categorized burnout scores across professional subgroups. Secondary analyses were performed comparing burnout across sex, age, and categorized years in position. An alpha level of 0.05 was used for all analyses. RESULTS In total, 55 participants responded to the survey: 12 nurses, 8 dosimetrists, 12 physicians, 5 physicists, and 18 radiation therapists for a response rate of 43.6%. Demographics were consistent across professional subgroups with the exception of participant sex (p = .0397), which had a greater proportion of females (72.22%) in the Radiation Therapist subgroup. Among the three subcategories, only Exhaustion had a significant difference between groups (p = .0494) with Dosimetrists (62.50%) and Physicists (40.00%) experiencing the highest level of burnout. For Depersonalization, at least one individual in each subgroup identified high burnout with higher rates among the Dosimetrists (25.00%) and Physicists (40.00%). Similarly, at least one person in each subgroup reported high burnout in Personal Achievement, but the highest response was among Dosimetrists (37.50%). In total, at least 12.75% of participants reported high burnout in at least one subcategory. No statistically significant differences in burnout were detected in our secondary analyses across sex, age, and years in position. CONCLUSION Our study showed that burnout rates are moderate in members of the radiation oncology team, with dosimetrists and physicists displaying the highest levels of burnout. In order to better estimate professional burnout, larger studies should be conducted to determine causes of burnout. Furthermore, wellness programs should be encouraged and incentivized to help reduce burnout and improve workplace morale, occupational fulfillment, and effective patient care.
Collapse
Affiliation(s)
- S T McCauley
- University of Arizona College of Medicine Phoenix, Phoenix, AZ
| | - C Irwin
- University of Arizona College of Medicine Phoenix, Phoenix, AZ
| | - B Traube
- University of Arizona College of Medicine Phoenix, Phoenix, AZ
| | - M K Khan
- BC Cancer Agency, Surrey, BC, Canada
| | - A Sadeghi
- Banner MD Anderson Cancer Center, Gilbert, AZ
| | - B Stea
- University of Arizona, Department of Radiation Oncology, Tucson, AZ
| | - R J Hamilton
- University of Arizona, Department of Radiation Oncology, Tucson, AZ
| | - G V Walker
- Banner MD Anderson Cancer Center, Gilbert, AZ
| |
Collapse
|
2
|
Ghajari H, Sadeghi A, Khodakarim S, Zali M, Nazari SSH. Designing a Predictive Model for Colorectal Neoplasia Diagnosis Based on Clinical and Laboratory Findings in Colonoscopy Candidate Patients. J Gastrointest Cancer 2021; 53:880-887. [PMID: 34851503 DOI: 10.1007/s12029-021-00737-4] [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] [Accepted: 10/17/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Health authorities have expanded two strategies to diminish CRC-related influence: CR screening and improve diagnostic process in symptomatic patients. The aim of the current study is to design a predictive model to identify the most important risk factors that can efficiently predict patients who have high risk of colorectal neoplasia. METHOD A cross-sectional study was constructed to include all patients who had positive test for FIT or had one or more risk factors for colorectal cancer based on the guidelines of detecting high-risk groups for colorectal cancer in Iran. Multivariable binary logistic regression model was constructed for prediction of colorectal neoplasia. We used sensitivity, specificity, positive and negative predictive value, and positive and negative likelihood ratio to check the accuracy. The Hosmer-Lemeshow test, chi-square test, and p value were used to determine the precision of model. RESULT Following an AIC stepwise selection model, only nine potential variables, namely gender, watery diarrhea, IBD, abdominal pain, melena, body mass index, depression drug, anti-inflammatory drug, and age, were found to be a predictor of colorectal neoplasia. The best cut-point probability in the final model was 0.27 and results of sensitivity and specificity, based on maximizing these two criteria, were 66% and 62%, respectively. CONCLUSION Overall, our model prediction was comparable with other risk prediction models for colorectal cancer. It had a modest discriminatory power to distinguish an individual's neoplasia colorectal risk.
Collapse
Affiliation(s)
- H Ghajari
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Sadeghi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Khodakarim
- Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S S Hashemi Nazari
- Safety Promotion and Injury Prevention Research Center, Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Chamran Highway, Daneshjoo Blvd, 198353-5511, Velenjak Tehran, PC, Iran
| |
Collapse
|
3
|
Mansouri Daneshvar MR, Ebrahimi M, Sadeghi A, Mahmoudzadeh A. Climate effects on the COVID-19 outbreak: a comparative analysis between the UAE and Switzerland. ACTA ACUST UNITED AC 2021; 8:469-482. [PMID: 33521243 PMCID: PMC7822754 DOI: 10.1007/s40808-021-01110-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/05/2021] [Indexed: 02/06/2023]
Abstract
The main aim of the present study is to disclose the similarities or differences of the climate effects on the COVID-19 outbreak in two countries, which have different climatic conditions. Using the correlation modeling, the results revealed that some climatic factors, such as the ULR, temperature, and CH4 in the UAE and aerosol index and NO2 in Switzerland have positive lagged correlations with the outburst of COVID-19 by intensifying role within − 9, − 7, and − 2 days. The mitigating role was also observed for ozone/solar radiation and temperature/long-wave radiation in the UAE and Switzerland, respectively. The initial hypotheses of the research have confirmed the correlations between new cases of COVID-19 and ULR and aerosol indices in the UAE and Switzerland. However, the main finding revealed that the climate effects on the COVID-19 outbreak show different roles in the different countries, locating in dissimilar climatic zones. Accordingly, the COVID-19 can be intensified by increases of the ULR and temperature in an arid region, while it can be exactly mitigated by increases of these factors in a temperate area. This finding may be useful for future researches for identifying the essential influencing factors for the mitigating COVID-19 outbreak.
Collapse
Affiliation(s)
- M R Mansouri Daneshvar
- Department of Geography and Natural Hazards, Research Institute of Shakhes Pajouh, Isfahan, Iran
| | - M Ebrahimi
- Department of Physical Geography, Hakim Sabzevari University, Sabzevar, Iran
| | - A Sadeghi
- Department of Humanities and Social Science, Farhangian University, Tehran, Iran
| | - A Mahmoudzadeh
- Head of Departments and Chancellor, Research Institute of Shakhes Pajouh, Isfahan, Iran
| |
Collapse
|
4
|
Abdollahi A, Karimi A, Sadeghi AA, Bedford MR, Ashengroph M. The effects of the fiber source and xylanase supplementation on production, egg quality, digestibility, and intestinal morphology in the aged laying hen. Poult Sci 2020; 100:100936. [PMID: 33518298 PMCID: PMC7936207 DOI: 10.1016/j.psj.2020.12.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/04/2020] [Accepted: 12/15/2020] [Indexed: 12/23/2022] Open
Abstract
This study was conducted to evaluate the effects of the fiber source (wheat bran [WB] or sugar beet pulp [SBP]) and xylanase supplementation on production, egg quality, ileal digestibility, intestinal morphology, and gastrointestinal pH in aged laying hens. A total of 540 laying hens (Lohman LSL Lite; 70 wk of lay) were randomized into 10 treatments (6 replicate cages of 9 birds) consisting of a corn soy control supplemented with 0, 3, or 6% WB or SBP with or without xylanase (100 mg of xylanase preparation per kg) for a period of 9 wk in a 5 × 2 factorial arrangement. Hens fed with the diets containing either of the levels of SBP or 6% WB had lower hen-day production, and addition of the enzyme improved hen-day production (P < 0.05), but it could not compensate for the lost production due to the higher levels of either of the fiber sources. Supplementation of 6% SBP to the control diet decreased egg mass (P < 0.05). All fiber-supplemented diets significantly decreased ADFI, which was restored on enzyme addition, with the exception of 3% WB diet. Treatments had no effects on egg weight, feed conversion ratio, egg quality, and serum and carcass traits, except for ileum weight, which was greater in hens fed with the 6% SBP diet (P < 0.05). Adding 3% SBP increased ileal DM digestibility (P < 0.05). Addition of 3% WB improved jejunal villus height, villus height-to-crypt depth ratio, and villus surface area (P < 0.05). Villus surface area, DM, organic matter, and protein digestibility increased as a result of enzyme supplementation (P < 0.05). Cecal pH was reduced on feeding diets containing 3% WB, containing 3% SBP, and with enzyme supplementation (P < 0.05). In conclusion, addition of 3% WB in a corn soy control diet has the potential to improve small intestine morphology in older hens without adverse effects on performance, especially if accompanied by the use of an enzyme, which simultaneously improved morphological traits and nutrient digestibility.
Collapse
Affiliation(s)
- A Abdollahi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj, 416, Kurdistan, Iran
| | - A Karimi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj, 416, Kurdistan, Iran.
| | - A A Sadeghi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj, 416, Kurdistan, Iran
| | - M R Bedford
- AB Vista, Marlborough, Wiltshire, SN8 4AN, United Kingdom
| | - M Ashengroph
- Department of Biological Science, Faculty of Science, University of Kurdistan, Sanandaj, 416, Kurdistan, Iran
| |
Collapse
|
5
|
Bonakdar APS, Sadeghi A, Aghaei HR, Beheshtimaal K, Nazifi SMR, Massah AR. Convenient Synthesis of Novel Chalcone and Pyrazoline Sulfonamide Derivatives as Potential Antibacterial Agents. Russ J Bioorg Chem 2020. [DOI: 10.1134/s1068162020030048] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
6
|
Gholizadeh Pasha AH, Sadeghi A. Experimental and theoretical studies of frequency response function of dagger-shaped atomic force microscope cantilever in different immersion environments. J Microsc 2020; 279:52-68. [PMID: 32282936 DOI: 10.1111/jmi.12897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/08/2020] [Accepted: 04/10/2020] [Indexed: 11/28/2022]
Abstract
In this study, the amplitude of frequency response functions of vertical and rotational displacements and resonant frequency of a dagger-shaped atomic force microscope cantilever have been investigated. To increase the accuracy of theoretical model, all necessary details for cantilever and sample surface have been taken into account. In this paper, carbon tetrachloride (CCL4 ), methanol, acetone, water and air have been considered as the environments. In the most cases, presence and absence of tip-sample interaction force have studied. For a sample cantilever immersed in air, both of the Euler-Bernoulli and Timoshenko beam theories have been compared. The results indicate that the tip-sample interaction force raises the resonant frequency. Increasing the liquid viscosity leads to a decrease in the resonant frequency and the amplitude of frequency response functions of vertical and rotational displacements. Increasing the rectangular and tapered parts lengths, decreases the resonant frequency and amplitude of frequency response functions of vertical and rotational displacements. By increasing the cantilever thickness the resonant frequency and amplitude of frequency response functions of vertical and rotational displacements increases. Theoretical model for air and water has been compared with experimental work. Results show good agreement.
Collapse
Affiliation(s)
- A H Gholizadeh Pasha
- Renewable Energy Research Center, Damavand Branch, Islamic Azad University, Damavand, Iran
| | - A Sadeghi
- Renewable Energy Research Center, Damavand Branch, Islamic Azad University, Damavand, Iran
| |
Collapse
|
7
|
Fallah H, Karimi A, Sadeghi A, Behroozi-Khazaei N. Modelling and optimizing of calcium and non-phytate phosphorus requirements of male broiler chickens from 1 to 21 days of age using response surface methodology. Animal 2020; 14:1598-1609. [PMID: 32216861 DOI: 10.1017/s1751731120000452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The skeleton is the main site of P and Ca deposition; therefore, accurate estimation of Ca and P requirements is necessary to maintaining health and optimum performance of broiler chickens. A response surface methodology (RSM) using a central composite design (CCD) was used for evaluating and optimizing of Ca and non-phytate P (NPP) requirements of broiler chickens for optimal performance, ileal nutrient digestibility and bone mineralization from 1 to 21 days of age. A total of 750 one-day-old male broiler chickens (Ross 308) were randomly distributed into 50 cages including 9 treatments, each replicated 5 times (except central treatment with 10 replicates) and 15 birds in each cage by CCD. The dietary Ca levels of 4.3, 5.6, 8.6, 11.7 and 13.0 g/kg and NPP of 2.5, 2.9, 4.0, 5.0 and 5.4 g/kg were used for nine treatments of CCD. The results indicated that the linear and quadratic effects of NPP, quadratic effects of Ca and Ca × NPP were significant for average weight gain (AWG, P < 0.05), average feed intake (AFI, P < 0.05), feed conversion ratio (FCR, P < 0.05) and Ca and P apparent ileal digestibility (AID, P < 0.05); however, the linear effect of Ca was significant only for FCR (P < 0.05). On the other hand, tibia and toe ash were affected by NPP (linear and quadratic, P < 0.01) and Ca (quadratic, P < 0.01). The second-order polynomial regression model was significant for AWG (R2 = 0.93, P < 0.001), AFI (R2 = 0.88, P < 0.001), FCR (R2 = 0.78, P < 0.001), AID of Ca (R2 = 0.78, P < 0.001) and P (R2 = 0.88, P < 0.001), tibia ash (R2 = 0.86, P < 0.001) and toe ash (R2 = 0.85, P < 0.001). The multi-objective optimization indicated that broiler chickens from 1 to 21 days of age need 7.03 and 4.47 g/kg of Ca and NPP, respectively, to achieve optimal AWG, FCR, tibia and toe ash. However, the dietary Ca and NPP levels can be reduced to 6.57 and 3.95 g/kg with a slight negative impact on performance and bone mineralization, respectively. In conclusion, the findings indicate that using multi-objective optimization model such as RSM provides more information regarding optimum Ca and NPP requirements of broiler chickens, considering the complex interaction between these two minerals. While the NPP levels are in line with current recommended requirements, Ca levels are considerably lower and suggest that current recommended Ca requirements may be in excess of the needs of the broiler.
Collapse
Affiliation(s)
- H Fallah
- Department of Animal Science, Faculty of Agriculture, Pasdaran St., University of Kurdistan, Sanandaj66177-15175, Iran
| | - A Karimi
- Department of Animal Science, Faculty of Agriculture, Pasdaran St., University of Kurdistan, Sanandaj66177-15175, Iran
| | - A Sadeghi
- Department of Animal Science, Faculty of Agriculture, Pasdaran St., University of Kurdistan, Sanandaj66177-15175, Iran
| | - N Behroozi-Khazaei
- Department of Biosystems Engineering, Faculty of Agriculture, Pasdaran St., University of Kurdistan, Sanandaj66177-15175, Iran
| |
Collapse
|
8
|
Besharati S, Sadeghi A, Ahmadi F, Tajeddin E, Mohammad Salehi R, Fani F, Pouladfar G, Nikmanesh B, Majidpour A, Soleymanzadeh Moghadam S, Mirab Samiee S, Rahnamaye Farzami M, Rahbar M, Eslami P, Rakhshani N, Eshrati B, Gouya MM, Fallah F, Karimi A, Owlia P, Alebouyeh M. Serogroups, and drug resistance of nontyphoidal Salmonella in symptomatic patients with community-acquired diarrhea and chicken meat samples in Tehran. Iran J Vet Res 2020; 21:269-278. [PMID: 33584839 PMCID: PMC7871737] [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] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 09/26/2020] [Accepted: 10/26/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Salmonella is considered as a main cause of community-acquired diarrhea in humans, however, sources of the multi-drug resistant (MDR) strains and their link with the disease are not well known. AIMS This study aimed to investigate the frequency, serogroup diversity, and antimicrobial susceptibility patterns of Salmonella strains in poultry meat and stool samples of patients with community acquired diarrhea in Tehran. METHODS We compared the frequency of non-typhoidal Salmonella serogroups, the similarities of their resistance patterns to 10 antimicrobial compounds, the prevalence of extended spectrum β-lactamase (ESBL) and ampicillinase C (AmpC) genetic determinants, and class 1 and 2 integrons in 100 chicken meat and 400 stool samples of symptomatic patients in Tehran during June 2018 to March 2019. RESULTS Salmonella was isolated from 75% and 5.5% of the chicken meats and human stool samples, respectively. The chicken meat isolates mainly belonged to serogroup C (88%, 66/75), while the human stool isolates were mainly related to serogroup D (59.1%, 13/22). The MDR phenotype and the most common rates of resistance to antibiotics, including tetracycline, trimethoprim/sulfamethoxazole (TS) and azithromycin, were detected in 4.5% and 45.3%, 59% and 13.6%, 43% and 9.1%, 42% and 9.1% of the human stool and chicken meat samples, respectively. Carriage of bla CTX, bla SHV, and bla PER genes in the meat isolate with ESBL resistance phenotype and bla ACC, bla FOX, and bla CMY-2 among the 7 meat strains with AmpC resistance phenotype was not confirmed using polymerase chain reaction (PCR). High prevalence of class 1 and 2 integrons was characterized and showed a correlation with resistance to TS and chloramphenicol. CONCLUSION These findings showed a lack of association between chicken meats and human isolates due to discrepancy between the characterized serogroups and resistance phenotypes.
Collapse
Affiliation(s)
- S. Besharati
- MSc in Microbiology, Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - A. Sadeghi
- MSc in Microbiology, Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - F. Ahmadi
- MSc Student in Microbiology, Department of Microbiology, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - E. Tajeddin
- MSc in Microbiology, Division of Microbiology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - R. Mohammad Salehi
- Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran
| | - F. Fani
- Division of Microbiology, Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gh. Pouladfar
- Division of Microbiology, Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - B. Nikmanesh
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - A. Majidpour
- Division of Microbiology, Anti-Microbial Resistance Research Center, Institute of Immunology and Infectious Diseases (IIID), Iran University of Medical Sciences, Tehran, Iran
| | - S. Soleymanzadeh Moghadam
- MSc in Microbiology, Division of Microbiology, Anti-Microbial Resistance Research Center, Institute of Immunology and Infectious Diseases (IIID), Iran University of Medical Sciences, Tehran, Iran
| | - S. Mirab Samiee
- Health Reference Laboratory, Health Reference Laboratory Research Center, Ministry of Health and Medical Education, Tehran, Iran
| | - M. Rahnamaye Farzami
- Health Reference Laboratory, Health Reference Laboratory Research Center, Ministry of Health and Medical Education, Tehran, Iran
| | - M. Rahbar
- Health Reference Laboratory, Health Reference Laboratory Research Center, Ministry of Health and Medical Education, Tehran, Iran
| | - P. Eslami
- MSc in Microbiology, Department of Microbiology, Central Laboratory, Milad Hospital, Tehran, Iran
| | - N. Rakhshani
- Pathology Laboratory, Mehr Hospital, Tehran, Iran
| | - B. Eshrati
- Center for Communicable Disease Control, Ministry of Health and Medical Education, Tehran, Iran
| | - M. M. Gouya
- Center for Communicable Disease Control, Ministry of Health and Medical Education, Tehran, Iran
| | - F. Fallah
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A. Karimi
- Pediatric Infections Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - P. Owlia
- Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran
- These authors contributed equally in this study
| | - M. Alebouyeh
- Pediatric Infections Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- These authors contributed equally in this study
| |
Collapse
|
9
|
Farhadi D, Karimi A, Sadeghi AA, Rostamzadeh J, Bedford MR. Effect of a high dose of exogenous phytase and supplementary myo-inositol on mineral solubility of broiler digesta and diets subjected to in vitro digestion assay. Poult Sci 2019; 98:3870-3883. [PMID: 30877748 DOI: 10.3382/ps/pez104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 03/01/2019] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to evaluate the effect of microbial phytase and myo-inositol supplementation in low non-phytate phosphorus (nPP) diets on pH and the solubility of minerals in an in vitro digestion procedure (IVDP) and to compare this with digesta from birds fed different diets (grower diets) compared to the in vitro test (starter diets). A total of 660 1-day-old broilers were randomly allotted into 11 dietary treatments and fed a corn-soybean-meal-based diet with recommended nPP (positive control; PC), an nPP-deficient diet (negative control; NC), NC diets supplemented with phytase (500; 1,000; 2,000; 3,000; 4,000; 5,000; and 6,000 FTU/kg), an NC diet plus 0.15% myo-inositol, and an NC diet with reduced Ca level (Ca: nPP ratio same as PC) from 1 to 23 D of age. The pH and Ca solubility of the NC diet was increased compared with the PC when subjected to IVDP (P < 0.05). P solubility in the gizzard and jejunal digesta was reduced in the NC compared with the PC diet and this was also reflected in the IVDP. Phytase addition to the NC diets linearly increased (P < 0.05) the pH value and Ca and P solubilities in both digesta and diets subjected to IVDP. Higher doses of microbial phytase increased (P < 0.05) Zn and Fe solubilities in both digesta and IVDP. Myo-inositol supplementation of the NC diet had no effect on mineral solubility, but decreased (P < 0.05) the pH of the IVDP. Lowering the Ca content of the NC diet decreased (P < 0.05) the pH of the in vitro digested diets and Ca solubility in both broiler digesta and IVDP and also increased (P < 0.05) P solubility in both the jejunal digesta and IVDP. Correlations were noted between the solubility of P in the in vitro assay and that in the gizzard and jejunal digesta, and also with bird performance, confirms the usefulness of in vitro assay.
Collapse
Affiliation(s)
- D Farhadi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - A Karimi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - A A Sadeghi
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - J Rostamzadeh
- Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj 66177-15175, Iran
| | - M R Bedford
- AB Vista Feed Ingredients, Marlborough, Wiltshire SN8 4AN, UK
| |
Collapse
|
10
|
Mirmohamadsadeghi H, Bayatian A, Dashti M, Ardeshirzadeh M, Kazemifard S, Sadeghi A. Comparison of Oral and Maxillofacial Surgeons’ and Orthodontists’ Treatment Plans for Inclined Class III Patients. J Res Dentomaxillofac Sci 2019. [DOI: 10.29252/jrdms.4.4.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
11
|
Jannesar M, Sadeghi A, Meyer E, Jafari GR. A Langevin equation that governs the irregular stick-slip nano-scale friction. Sci Rep 2019; 9:12505. [PMID: 31467401 PMCID: PMC6715674 DOI: 10.1038/s41598-019-48345-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 07/30/2019] [Indexed: 11/26/2022] Open
Abstract
Friction force at the nanoscale, as measured from the lateral deflection of the tip of an atomic force microscope, usually shows a regular stick-slip behavior superimposed by a stochastic part (fluctuations). Previous studies showed the overall fluctuations to be correlated and multi-fractal, and thus not describable simply by e.g. a white noise. In the present study, we investigate whether one can extract an equation to describe nano-friction fluctuations directly from experimental data. Analysing the raw data acquired by a silicon tip scanning the NaCl(001) surface (of lattice constant 5.6 Å) at room temperature and in ultra-high vacuum, we found that the fluctuations possess a Markovian behavior for length scales greater than 0.7 Å. Above this characteristic length, the Kramers-Moyal approach applies. However, the fourth-order KM coefficient turns out to be negligible compared to the second order coefficients, such that the KM expansion reduces to the Langevin equation. The drift and diffusion terms of the Langevin equation show linear and quadratic trends with respect to the fluctuations, respectively. The slope 0.61 ± 0.02 of the drift term, being identical to the Hurst exponent, expresses a degree of correlation among the fluctuations. Moreover, the quadratic trend in the diffusion term causes the scaling exponents to become nonlinear, which indicates multifractality in the fluctuations. These findings propose the practical way to correct the prior models that consider the fluctuations as a white noise.
Collapse
Affiliation(s)
- M Jannesar
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran, 19839-63113, Iran
| | - A Sadeghi
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran, 19839-63113, Iran. .,School of Nano Science, Institute for Research in Fundamental Sciences (IPM), 19395-5531, Tehran, Iran.
| | - E Meyer
- Department Physik, University of Basel, Klingelbergstr. 82, 4056, Basel, Switzerland
| | - G R Jafari
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran, 19839-63113, Iran.
| |
Collapse
|
12
|
Moradi Y, Ahmadi F, Sadeghi A, Oshvandi K. Conceptualizing and determining core clinical competencies in nursing students: a qualitative study. Int Nurs Rev 2019; 66:530-540. [PMID: 31423593 DOI: 10.1111/inr.12548] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 07/14/2019] [Accepted: 07/18/2019] [Indexed: 11/29/2022]
Abstract
AIM This study aimed to conceptualize and explain the core clinical competencies of nursing students in Iran. BACKGROUND/INTRODUCTION Despite the national and international efforts to modify nursing curricula such that the students' clinical competencies are improved, there is still a widespread concern about this issue, perhaps due to the impact of factors other than the curriculum itself, such as the lack of a clear definition for the concept of clinical competency and its main components in nursing students. METHODS This qualitative study was conducted using conventional content analysis. The participants were selected through purposive sampling and included 14 senior students of bachelor of nursing, four nurses working in teaching hospitals and six clinical instructors. Individual semi-structured interviews were used for data collection. After recording and transcribing the interviews, content analysis was used to extract the concepts. FINDINGS The main theme of the study was 'multidimensionality of the concept of clinical competency,' which had six main categories, namely 'adoption of and adaptation with the nursing practice,' 'nursing knowledge,' 'self-direction in clinical learning,' 'patient care skills,' 'professional ethics' and 'the development of professional behaviours.' DISCUSSION/CONCLUSION Clinical competency and its dimensions among students comprise a multidimensional concept. Having a clear and comprehensive understanding of this concept and focusing on its core axes may be the most important step in improving students' clinical competency. IMPLICATIONS FOR NURSING, HEALTH AND EDUCATION POLICY Policymakers and nursing education authorities can identify the problems existing in the students' clinical competency and provide them with practical solutions for a standard professional education through a clear understanding of the concept of clinical competency and its dimensions.
Collapse
Affiliation(s)
- Y Moradi
- Chronic Disease (Home Care) Center, Nursing and Midwifery School, Hamadan University of Medical Sciences, Hamadan, Iran
| | - F Ahmadi
- Department of Nursing, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - A Sadeghi
- Mother and Child Care Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - K Oshvandi
- Mother and Child Care Research Center, Nursing and Midwifery School, Hamadan University of Medical Sciences, Hamadan, Iran
| |
Collapse
|
13
|
Sadeghi A, Rizi MP, Shahidi G, Vaidyanathan J, Bajelani K, Aboulhasani M, Tondnevis F, Ghaemi RV. Various targeting methods for subthalamic nucleus in deep brain stimulation. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
14
|
Sadeghi A, Zalli A, Khoshnoud RJ, Bajelani K, Tondnevis F, Aboulhasani M, Ghaemi RV. Design and evaluation of various tDCS electrodes and electrode placement to understand optimal configuration for treatment of depression. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.785] [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: 11/27/2022] Open
|
15
|
Sadeghi A, Ebrahimi M, Sadeghi B, Mortazavi SA. Evaluation of safety and antifungal activity of Lactobacillus reuteri and Pediococcus diacetilactis isolates against aflatoxigenic Aspergillus flavus. BJVM 2019. [DOI: 10.15547/bjvm.2046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Biocontrol of moulds by lactic acid bacteria (LAB) instead of antibiotics and chemical preservatives is a new approach in veterinary medicine. The aims of present research were to perform molecular identification of dominant sourdough LAB isolates and to evaluate their in vivo safety and in vitro antifungal properties for using as biopreservative agents. Sequencing results of PCR products led to identification of Lactobacillus reuteri and Pediococcus diacetilactis as LAB isolates. Antifungal activity of the isolates and their cell-free culture filtrate (CCF) were also confirmed against aflatoxigenic Aspergillus flavus, respectively by overlay and spore spot methods. Accordingly, antagonistic effect of P. diacetilactis and its CCF were significantly (P<0.05) higher than L. reuteri and CCF of mentioned LAB isolate. Clinical chemistry and haematological findings in mice fed LAB demonstrated also insignificant difference vs control mice and were in the normal range, which confirmed the safety of LAB isolates. By considering the importance of safe, food grade biocontrol agents, L. reuteri and P. diacetilactis isolates and their CCF may be considered as an alternative for antibiotics and other chemical preservatives in food and feed processing chain
Collapse
|
16
|
Bruner D, Moughan J, Prestidge B, Sanda M, Bice W, Michalski J, Ibbott G, Amin M, Catton C, Donavanik V, Gay H, Brachman D, Frank S, Rosenthal S, Matulonis U, Sadeghi A, Winter K, Sandler H, Papagikos M. Patient Reported Outcomes of NRG Oncology/RTOG 0232: A Phase III Study Comparing Combined External Beam Radiation and Transperineal Interstitial Permanent Brachytherapy with Brachytherapy Alone in Intermediate Risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
Panahande B, Sadeghi A, Parohan M. Alternative healthy eating index and risk of hip fracture: a systematic review and dose-response meta-analysis. J Hum Nutr Diet 2018; 32:98-107. [PMID: 30357949 DOI: 10.1111/jhn.12608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 01/03/2023]
Abstract
BACKGROUND A high adherence to healthy dietary patterns, such as an alternative healthy eating index (AHEI), has been suggested to have protective effects on bone mineral density and to decrease the incidence of fractures, although the evidence for this is not clear. We conducted a dose-response meta-analysis of available observational studies aiming to assess the association between adherence to a healthy dietary pattern, as assessed by the AHEI score, and risk of hip fracture in the general population. METHODS Studies published up to March 2018 were identified on the basis of a literature search in PubMed, Scopus and ISI Web of Science databases using Mesh and non-Mesh relevant keywords. Relative risks (RRs) with 95% confidence intervals (CIs), the linear and nonlinear relationships were calculated using random-effects models. RESULTS In the meta-analysis of five effect sizes, as obtained from four studies (265 771 participants with 6938 cases of incident hip fracture), we found that a higher AHEI score was associated with a 31% reduced risk of hip fracture (pooled RR = 0.69; 95% CI = 0.52-0.91) in high versus low intake meta-analysis. In addition, there were inverse relationships between AHEI score and risk of hip fracture, such that a five-unit increase in the score of AHEI was associated with a reduction in the risk of hip fracture in linear (pooled RR = 0.97; 95% CI = 0.95-0.99) and nonlinear (Pnonlinearity < 0.001) models, respectively. CONCLUSIONS Adherence to the AHEI (as an indicator of diet quality) was associated with a reduced risk of hip fracture.
Collapse
Affiliation(s)
- B Panahande
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (IC-TUMS), Tehran, Iran
| | - A Sadeghi
- Students' Scientific Research Center, Tehran University of Medical Sciences (TUMS), Tehran, Iran.,Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - M Parohan
- Students' Scientific Research Center, Tehran University of Medical Sciences (TUMS), Tehran, Iran.,Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| |
Collapse
|
18
|
Jannesar M, Jamali T, Sadeghi A, Movahed SMS, Fesler G, Meyer E, Khoshnevisan B, Jafari GR. Multiscaling behavior of atomic-scale friction. Phys Rev E 2017; 95:062802. [PMID: 28709272 DOI: 10.1103/physreve.95.062802] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 11/07/2022]
Abstract
The scaling behavior of friction between rough surfaces is a well-known phenomenon. It might be asked whether such a scaling feature also exists for friction at an atomic scale despite the absence of roughness on atomically flat surfaces. Indeed, other types of fluctuations, e.g., thermal and instrumental fluctuations, become appreciable at this length scale and can lead to scaling behavior of the measured atomic-scale friction. We investigate this using the lateral force exerted on the tip of an atomic force microscope (AFM) when the tip is dragged over the clean NaCl (001) surface in ultra-high vacuum at room temperature. Here the focus is on the fluctuations of the lateral force profile rather than its saw-tooth trend; we first eliminate the trend using the singular value decomposition technique and then explore the scaling behavior of the detrended data, which contains only fluctuations, using the multifractal detrended fluctuation analysis. The results demonstrate a scaling behavior for the friction data ranging from 0.2 to 2 nm with the Hurst exponent H=0.61±0.02 at a 1σ confidence interval. Moreover, the dependence of the generalized Hurst exponent, h(q), on the index variable q confirms the multifractal or multiscaling behavior of the nanofriction data. These results prove that fluctuation of nanofriction empirical data has a multifractal behavior which deviates from white noise.
Collapse
Affiliation(s)
- M Jannesar
- Department of Physics, Kashan University, Kashan 8731751167, Iran
| | - T Jamali
- School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran
| | - A Sadeghi
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran 19839, Iran.,School of Nano Science, Institute for Research in Fundamental Sciences (IPM), Tehran 19395-5531, Iran
| | - S M S Movahed
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran 19839, Iran
| | - G Fesler
- Departement Physik, Universität Basel, Klingelbergstr. 82, 4056 Basel, Switzerland
| | - E Meyer
- Departement Physik, Universität Basel, Klingelbergstr. 82, 4056 Basel, Switzerland
| | - B Khoshnevisan
- Department of Physics, Kashan University, Kashan 8731751167, Iran
| | - G R Jafari
- Department of Physics, Shahid Beheshti University, G.C., Evin, Tehran 19839, Iran
| |
Collapse
|
19
|
Mosavi Jarrahi A, Zare M, Sadeghi A. Geographic Information Systems (GIS), an Informative Start for Challenging Process of Etiologic Investigation of Diseases and Public Health Policy Making. Asian Pac J Cancer Care 2017. [DOI: 10.31557/apjcc.2017.2.1.1] [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] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: The public health has been always concerned of the immediate environment of human as causal factors for different diseases and health outcomes. Epidemiology, as one of the fundamental basis of public health, is concerned of how diseases are distributed in terms of geographical, chronological, and human population characteristics and employees the descriptive nature of such spread to draw conclusion on the etiology of health or disease utcome for further policy making on prevention of disease or promotion of health.Methods: In this paper, we present the importance of GIS technology in epidemiology from both descriptive and etiologic standpoints and elaborate how this technology can stand in the forefront of disease and health outcome measures in the coming decades. The paper will address the history of geo-related health and disease issues. The mapping tool as a traditionally strong resource in the public health will be explored. The advances in Information Technology and one of its best utilized offshoot, GIS, in Health and disease will be discussed. How the huge repository of generated or ever generating geo-related data and information is utilized to address etiology of diseases or to help public health authorities in making informed policy making decisions are explored.Results: The utilization of GIS technology in diseases with intermittent host such as malaria, yellow fever, or other parasitic diseases has already been well established. The GIS technology and its utilization in chronic and degenerative diseases such as cancer, diabetes, and aging are under development and new frontiers are discovering. The limitation of GIS technology in addressing host environment interaction in micro-environment (at the molecular biology and tissue pathogenicity level) and gene–environment interaction (at the individual level) will further be discussed.Conclusion: We then distress on the efficient use of GIS both in the etiologic investigation of diseases and health events as well as the utilization of the GIS technology as a administrative tool in the help of public health authorities and policy makers in strategic management of health of a community or emergency management of man-made or technological disasters (e.g., wars) or naturally occurring disasters (e.g., earthquake and floods).
Collapse
|
20
|
Hosseini S, Chamani M, Seidavi A, Sadeghi AA, Pirsaraei ZA. Effect on Feeding Thymolina Powder in The Carcass Characteristics and Morphology of Small Intestine of Ross 308 Broiler Chickens (PENGIMBUHAN BUBUK THYMOLINA DALAM RANSUM MEMPERBAIKI PERFORMANS DAN MORFOLOGI USUS HALUS AYAM PEDAGING). jveteriner 2017. [DOI: 10.19087/jveteriner.2016.17.4.615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
21
|
Rezaeian-Tabrizi M, Sadeghi AA. Plasma antioxidant capacity, sexual and thyroid hormones levels, sperm quantity and quality parameters in stressed male rats received nano-particle of selenium. APJR 2017. [DOI: 10.12980/apjr.6.20170106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
22
|
Majidi-Mosleh A, Sadeghi AA, Mousavi SN, Chamani M, Zarei A. Effects of in Ovo Infusion of Probiotic Strains on Performance Parameters, Jejunal Bacterial Population and Mucin Gene Expression in Broiler Chicken. Rev Bras Cienc Avic 2017. [DOI: 10.1590/1806-9061-2016-0288] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | | | | | | | - A Zarei
- Islamic Azad University, Iran
| |
Collapse
|
23
|
Sadeghi A, Mondini A, Del Dottore E, Mattoli V, Beccai L, Taccola S, Lucarotti C, Totaro M, Mazzolai B. A plant-inspired robot with soft differential bending capabilities. Bioinspir Biomim 2016; 12:015001. [PMID: 27997363 DOI: 10.1088/1748-3190/12/1/015001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present the design and development of a plant-inspired robot, named Plantoid, with sensorized robotic roots. Natural roots have a multi-sensing capability and show a soft bending behaviour to follow or escape from various environmental parameters (i.e., tropisms). Analogously, we implement soft bending capabilities in our robotic roots by designing and integrating soft spring-based actuation (SSBA) systems using helical springs to transmit the motor power in a compliant manner. Each robotic tip integrates four different sensors, including customised flexible touch and innovative humidity sensors together with commercial gravity and temperature sensors. We show how the embedded sensing capabilities together with a root-inspired control algorithm lead to the implementation of tropic behaviours. Future applications for such plant-inspired technologies include soil monitoring and exploration, useful for agriculture and environmental fields.
Collapse
Affiliation(s)
- A Sadeghi
- Center for Micro-BioRobotics, Istituto Italiano di Tecnologia (IIT), Pontedera, Pisa I-56025, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Majidi-Mosleh A, Sadeghi AA, Mousavi SN, Chamani M, Zarei A. Ileal MUC2 gene expression and microbial population, but not growth performance and immune response, are influenced by in ovo injection of probiotics in broiler chickens. Br Poult Sci 2016; 58:40-45. [PMID: 27844495 DOI: 10.1080/00071668.2016.1237766] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 01/02/2023]
Abstract
1. The objective of present study was to evaluate the effects of intra-amniotic injection of different probiotic strains (Bacillus subtilis, Enterococcus faecium and Pediococcus acidilactici) on the intestinal MUC2 gene expression, microbial population, growth performance and immune response in broiler chicken. 2. In a completely randomised design, different probiotic strains were injected into the amniotic fluid of the 480 live embryos (d 18 of incubation), with 4 treatments and 5 replicates. Ileal MUC2 gene expression, microbial profile, growth performance and immune response were determined. 3. Injection of probiotic strains, especially B. subtilis, had significant effect on expression of the MUC2 on d 21 of incubation and d 3 post-hatch, but not on d 19 of incubation. 4. Injection of the probiotic strains decreased significantly the Escherichia coli population and increased the lactic acid bacteria population during the first week post-hatch. 5. Inoculation of probiotics had no significant effect on antibody titres against Newcastle disease virus, antibody titres against sheep red blood cell and cell-mediated immune response of chickens compared to control. 6. In ovo injection of the probiotic strains had no significant effect on growth performance of broiler chickens. 7. It was concluded that injection of probiotic bacteria especially B. subtilis into the amniotic fluid has a beneficial effect on ileal MUC2 gene expression and bacteria population during the first week post-hatch, but has no effect on growth performance and immune response in broiler chickens.
Collapse
Affiliation(s)
- A Majidi-Mosleh
- a Department of Animal Science, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - A A Sadeghi
- a Department of Animal Science, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - S N Mousavi
- b Department of Animal Science, Varamin-Pishva Branch , Islamic Azad University , Varamin , Tehran , Iran
| | - M Chamani
- a Department of Animal Science, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - A Zarei
- c Department of Animal Science, Karaj Branch , Islamic Azad University , Karaj , Iran
| |
Collapse
|
25
|
Rastad A, Sadeghi AA, Chamani M, Shawrang P. Effects of Thymoquinone on Interleukin-1 and Interferon Gamma Gene Expression and Antibody Titers against Newcastle Disease in Broiler Chickens under Oxidative Stress. Rev Bras Cienc Avic 2016. [DOI: 10.1590/1806-9061-2015-0206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | - P Shawrang
- Atomic Energy Organization of Iran, Iran
| |
Collapse
|
26
|
Esmailzadeh L, Shivazad M, Sadeghi AA, Karimitorshizi M. Performance, Intestinal Morphology and Microbiology of Broiler Chickens Fed Egg Powder in the Starter Diet. Rev Bras Cienc Avic 2016. [DOI: 10.1590/1806-9061-2016-0330] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Asadi H, Sadeghi AA, Eila N, Aminafshar M. Carcass Traits and Immune Response of Broiler Chickens Fed Dietary L-Carnitine, Coenzyme Q10 and Ractopamine. Rev Bras Cienc Avic 2016. [DOI: 10.1590/1806-9061-2016-0324] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- H Asadi
- Islamic Azad University, Iran
| | | | - N Eila
- Islamic Azad University, Iran
| | | |
Collapse
|
28
|
Kishan A, Shaikh T, Wang J, Reiter R, Said J, Raghavan G, Nickols N, Aronson W, Sadeghi A, Kamrava M, Demanes D, Steinberg M, Horwitz E, Kupelian P, King C. Clinical Outcomes for Patients With Gleason Score 9-10 Prostate Adenocarcinoma Treated With Radiation Therapy or Radical Prostatectomy: A Comparative Analysis. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Sadeghi AA. Bone Mineralization of Broiler Chicks Challenged with Salmonella enteritidis Fed Diet Containing Probiotic (Bacillus subtilis). Probiotics Antimicrob Proteins 2016; 6:136-40. [PMID: 25300924 DOI: 10.1007/s12602-014-9170-6] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The present study was carried out to determine the effect of probiotic, Bacillus subtilis, on ash and calcium contents of tibia bone in unchallenged and challenged broiler chicks with Salmonella enteritidis. In a completely randomized design, 160 chicks were divided into four groups. Each group had four replicates with 10 birds each. Treatments were control group, probiotic-treated group, challenged group and challenged probiotic-treated group. Ash and calcium contents of tibia at 21 and 42 days of age were determined. At 21 days of age, the highest contents of ash and calcium were related to probiotic-treated group and the lowest means to challenged chicks (P < 0.05). At this period, inclusion of probiotic to diet of challenged chick increased (P < 0.05) ash and calcium contents of tibia. With increases in age, the negative effects of challenging and beneficial effects of probiotic on bone mineralization diminished; since at 42 days of age, challenging or probiotic treatment had no effect on ash and calcium contents of tibia.
Collapse
Affiliation(s)
- A A Sadeghi
- Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran,
| |
Collapse
|
30
|
Likhacheva A, Grade E, Sadeghi A, Sokolowski T. SU-F-T-22: Clinical Implications When Using TG-186 (ACE) Heterogeneity Software. Med Phys 2016. [DOI: 10.1118/1.4956157] [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: 11/07/2022] Open
|
31
|
Sadeghi A, Yahyapour Y, Poortahmasebi V, Shahmoradi S, Roggendorf M, Karimzadeh H, Alavian SM, Jazayeri SM. Clearance of HBV DNA in immunized children born to HBsAg-positive mothers, years after being diagnosed with occult HBV infection. J Viral Hepat 2016; 23:282-5. [PMID: 26598112 DOI: 10.1111/jvh.12490] [Citation(s) in RCA: 10] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 10/20/2015] [Indexed: 02/02/2023]
Abstract
In a previous study, we observed immunoprophylaxis failure due to occult hepatitis B virus (HBV) infection (OBI) despite the presence of adequate levels of anti-HBs in 21 (28%) of 75 children born to HBsAg-positive mothers. The aim of the study was to explore the maintenance of this cryptic condition in this population. Of 21 OBI-positive children, 17 were enrolled. HBV serological profiles were determined by enzyme-linked immunosorbent assay. Highly sensitive real-time and standard PCR followed by direct sequencing were applied in positive cases. The mean age (±SD) of studied patients was 6.57 ± 2.75 years. All children still were negative for HBsAg. All but one (94%) were negative for HBV DNA. Only two children were positive for anti-HBc. The results of the most recent anti-HBs titration showed that 4 (23.5%) and 13 (76.5%) had low (<10 IU/mL) and adequate (>10 IU/mL) levels of anti-HBs, respectively. The only still OBI-positive patient had an HBV DNA level of 50 copy/mL, carried the G145R mutation when tested in 2009 and again in 2013 in the 'a' determinant region of the surface protein. Further follow-up showed that after 18 months, he was negative for HBV DNA. In high-risk children, the initial HBV DNA positivity early in the life (vertical infection) does not necessarily indicate a prolonged persistence of HBV DNA (occult infection). Adequate levels of anti-HBs after vaccine and hepatitis B immune globulin immunoprophylaxis following birth could eventually clear the virus as time goes by. Periodic monitoring of these children at certain time intervals is highly recommended.
Collapse
Affiliation(s)
- A Sadeghi
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Y Yahyapour
- Infectious Diseases and Tropical Medicine Research Center, Babol University of Medical Sciences, Babol, Iran
| | - V Poortahmasebi
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - S Shahmoradi
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - S M Alavian
- Middle East Center for Liver Disease (MELD), Tehran, Iran
| | - S M Jazayeri
- Hepatitis B Molecular Laboratory, Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
32
|
Morovat M, Chamani M, Zarei A, Sadeghi AA. Dietary but not in ovo feeding of Silybum marianum extract resulted in an improvement in performance, immunity and carcass characteristics and decreased the adverse effects of high temperatures in broilers. Br Poult Sci 2016; 57:105-13. [PMID: 26609767 DOI: 10.1080/00071668.2015.1121537] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 10/22/2022]
Abstract
A total of 360 fertile eggs from a broiler breeder strain (Ross 308) were used for in ovo feeding (IOF) of 0, 100 and 200 mg/kg Silybum marianum water extract at 17.5 d of incubation. After hatching, 240 chicks were transferred to the experimental cages. The diets consisted of two types; one of them without extract and the other one containing 100 mg/kg of Silybum marianum extract. Then chicks were exposed to elevated temperatures 4°C above optimum from 7 to 28 d of age for 4 h per d and after 28 d they were kept at optimum temperature. The chicks were divided into 6 treatments with 4 replicates as a completely randomised 2 × 3 factorial design. There was no effect of IOF of Silybum marianum extract on hatchability, body weight (BW) of hatched chicks or hatched chick BW/initial egg weight ratio. Chickens fed on the diet containing the extract had the highest feed intake, daily weight gains (DWGs), final BW and lowest feed conversion ratio. At 28 d, the weights of heart, spleen and bursa of birds in the treatment groups given extract were higher, but abdominal fat weights were lower. At 42 d in those fed extract in the diet, the weights of spleen and bursa were higher and abdominal fat weights were lower than the other groups. No differences were observed between groups in body temperature before application of the higher temperature but at 21 d and 28 d the body temperature of chicks given the Silybum marianum extract was lower than the other treatments during the elevated temperatures. In birds fed on the extract in the diet, HDL and cholesterol concentrations were lowest at 28 d, whereas blood glucose levels were higher in the other treatments. At 42 d the cholesterol concentration was significantly lower in birds given extract in their diet. These results indicated that dietary feeding of Silybum marianum extract resulted in an improvement in performance, immunity and carcass characteristics and decreased the adverse effects of the higher temperatures, specifically in reducing blood fat reduction, but IOF of the extract did not have an effect.
Collapse
Affiliation(s)
- M Morovat
- a Department of Animal Science, Faculty of Agriculture and Natural Resources, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - M Chamani
- a Department of Animal Science, Faculty of Agriculture and Natural Resources, Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - A Zarei
- b Department of Animal Science, Faculty of Agriculture and Natural Resources, Karaj Branch , Islamic Azad University , Karaj , Iran
| | - A A Sadeghi
- a Department of Animal Science, Faculty of Agriculture and Natural Resources, Science and Research Branch , Islamic Azad University , Tehran , Iran
| |
Collapse
|
33
|
Smith L, Kuske R, Nelums E, Sadeghi A. Plesiotherapy Boost After Breast Reconstruction Following Mastectomy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
34
|
Alidadi H, Sadeghi A, Asadi B. Survey of trihalomethane concentration (THMs) with chloroform index in Mashhad drinking water city in 2012. ACTA ACUST UNITED AC 2015. [DOI: 10.29252/jnkums.7.2.329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
35
|
Sangtarash F, Manshadi FD, Sadeghi A. The relationship of thoracic kyphosis to gait performance and quality of life in women with osteoporosis. Osteoporos Int 2015; 26:2203-8. [PMID: 25994904 DOI: 10.1007/s00198-015-3143-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 04/19/2015] [Indexed: 11/25/2022]
Abstract
UNLABELLED Thoracic kyphosis angle (TKA) increases with osteoporosis. This study aimed to investigate the relationship between magnitude of TKA and quality of life and gait performance in 34 osteoporotic women. Our results suggest that increasing TKA is significantly associated with decreasing quality of life (r = -0.48, p < 0.005) and gait performance (r = -0.74, p < 0.0005). INTRODUCTION Osteoporosis and its related effects are threatening health and quality of life especially in postmenopausal women. Increased thoracic kyphosis angle (TKA), as one of the most common adverse musculoskeletal changes, could be regarded as a quantitative index for osteoporotic patients' assessment. Dual digital inclinometer (DDI) is one of the latest tools for non-invasive TKA measurement. The main purpose of this study was to determine whether a relationship existed between the magnitude of TKA, gait performance, and quality of life in a group of osteoporotic women. METHODS Thirty-four osteoporotic women, aged 50-68, participated in this descriptive analytic study. The magnitude of TKA measured by using DDI and expressed as the kyphosis index (KI). Quality of life and gait performance were assessed using short form 36 (SF36) questionnaire and functional gait assessment test, respectively. Back extension range of motion (ROM) and back extensor strength were also assessed. Pearson's correlation test was used to analyze the data, with the significance level of p < 0.05. RESULTS The findings revealed a statistically significant negative correlation between KI and quality of life (r = -0.48, p < 0.005) and KI and gait performance (r = -0.74, p < 0.0005). There was also a significantly negative relation between KI and back extension ROM and back extensor strength (p < 0.05). CONCLUSION The results of this study demonstrated that increased thoracic kyphosis negatively affects gait performance and quality of life. This finding could be regarded as an important implication for therapist to pay more attention to the magnitude of thoracic kyphosis angle and its changes, when selecting appropriate therapeutic methods to improve gait performance and quality of life in osteoporosis women.
Collapse
Affiliation(s)
- F Sangtarash
- Rehabilitation Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran,
| | | | | |
Collapse
|
36
|
Sadeghi A, Dolatabadi M, Asadzadeh SN, Jamali Behnam F. Ability of the yeast Saccharomyces cerevisiae for biological removal of ciprofloxacin antibiotic in aqueous solution. ACTA ACUST UNITED AC 2015. [DOI: 10.29252/jnkums.7.1.71] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
37
|
Sadeghi A, Sieber M, Scharf I, Lampke T. Co-deposition behavior of alumina nanoparticles and properties of Ni-Al2
O3
nanocomposite coatings. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Sadeghi
- Technische Universität Chemnitz; Institute of Materials Science and Engineering; D-09107 Chemnitz Germany
| | - M. Sieber
- Technische Universität Chemnitz; Institute of Materials Science and Engineering; D-09107 Chemnitz Germany
| | - I. Scharf
- Technische Universität Chemnitz; Institute of Materials Science and Engineering; D-09107 Chemnitz Germany
| | - T. Lampke
- Technische Universität Chemnitz; Institute of Materials Science and Engineering; D-09107 Chemnitz Germany
| |
Collapse
|
38
|
Affiliation(s)
- R G Parker
- Department of Radiation Therapy, University of California, San Francisco
| | | | | |
Collapse
|
39
|
Sohrabnezhad S, Pourahmad A, Mehdipour Moghaddam MJ, Sadeghi A. Study of antibacterial activity of Ag and Ag2CO3 nanoparticles stabilized over montmorillonite. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt C:1728-33. [PMID: 25467663 DOI: 10.1016/j.saa.2014.10.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 07/08/2014] [Revised: 10/08/2014] [Accepted: 10/19/2014] [Indexed: 05/04/2023]
Abstract
Silver carbonate and silver nanoparticles (NPs) over of stabilizer montmorillonite (MMT) have been synthesized in aqueous and polyol solvent, respectively. Dispersions of silver nanoparticles have been prepared by the reduction of silver nitrate over of MMT in presence and absence of Na2CO3 compound in ethylene glycol. It was observed that montmorillonite was capable of stabilizing formed Ag nanoparticles through the reduction of Ag(+) ions in ethylene glycol. Na2CO3 was used as carbonate source in synthesis of Ag2CO3 NPs in water solvent and also for controlling of Ag nanoparticles size in ethylene glycol medium. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and ultraviolet-visible diffuse reflectance spectroscopy (DRS). The TEM images showed that Ag NPs size in presence Na2CO3 salts was smaller than without that. The results indicated intercalation of Ag and Ag2CO3 nanoparticles into the montmorillonite clay layers. The diffuse reflectance spectra exhibited a strong surface plasmon resonance (SPR) adsorption peak in the visible region, resulting from Ag nanoparticles. The antibacterial testing results showed that the Ag2CO3-MMT nanocomposite exhibited an antibacterial activity higher than Ag-MMT sample against Escherichia coli.
Collapse
Affiliation(s)
- Sh Sohrabnezhad
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht, Iran.
| | - A Pourahmad
- Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran
| | | | - A Sadeghi
- Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht, Iran
| |
Collapse
|
40
|
Aliakbarpour HR, Chamani M, Rahimi G, Sadeghi AA, Qujeq D. The Bacillus subtilis and Lactic Acid Bacteria Probiotics Influences Intestinal Mucin Gene Expression, Histomorphology and Growth Performance in Broilers. Asian-Australas J Anim Sci 2014; 25:1285-93. [PMID: 25049692 PMCID: PMC4092943 DOI: 10.5713/ajas.2012.12110] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [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: 02/28/2012] [Revised: 06/05/2012] [Accepted: 04/26/2012] [Indexed: 12/21/2022]
Abstract
The aim of the present study was to evaluate the effect of commercial monostrain and multistrain probiotics in diets on growth performance, intestinal morphology and mucin gene (MUC2) expression in broiler chicks. Three hundred seventy-eight 1-d-old male Arian broiler chicks were allocated in 3 experimental groups for 6 wk. The birds were fed on a corn-soybean based diet and depending on the addition were labeled as follows: control-unsupplemented (C), birds supplemented with Bacillus subtilis (BS) and lactic acid bacteria (LAB) based probiotics. Each treatment had 6 replicates of 21 broilers each. Treatment effects on body weight, feed intake, feed conversion ratio and biomarkers such as intestinal goblet cell density, villus length, villus width, and mucin gene expression were determined. Total feed intake did not differ significantly between control birds and those fed a diet with probiotics (p>0.05). However, significant differences in growth performance were found. Final body weight at 42 d of age was higher in birds fed a diet with probiotics compared to those fed a diet without probiotic (p<0.05). Inclusion of Bacillus subtilis based probiotic in the diets also significantly affected feed conversion rate (FCR) compared with control birds (p<0.05). No differences in growth performance were observed in birds fed different types of probiotic supplemented diets. Inclusion of lactic acid bacteria based probiotic in the diets significantly increased goblet cell number and villus length (p<0.05). Furthermore, diets with Bacillus subtilis based probiotics significantly increased gene expression (p<0.05), with higher intestinal MUC2 mRNA in birds fed diet with probiotics compared to those fed the control diet. In BS and LAB probiotic fed chicks, higher growth performance may be related to higher expression of the MUC2 gene in goblet cells and/or morphological change of small intestinal tract. The higher synthesis of the mucin gene after probiotic administration may positively affect bacterial interactions in the intestinal digestive tract, intestinal mucosal cell proliferation and consequently efficient nutrient absorption.
Collapse
Affiliation(s)
- H R Aliakbarpour
- Laboratory for Molecular Genetics and Animal Biotechnology, Department of Animal Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, 578-58932, Iran
| | - M Chamani
- Laboratory for Molecular Genetics and Animal Biotechnology, Department of Animal Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, 578-58932, Iran
| | - G Rahimi
- Laboratory for Molecular Genetics and Animal Biotechnology, Department of Animal Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, 578-58932, Iran
| | - A A Sadeghi
- Laboratory for Molecular Genetics and Animal Biotechnology, Department of Animal Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, 578-58932, Iran
| | - D Qujeq
- Department of Biochemistry and Biophysics, Faculty of Medicine, Babol University of Medical Sciences, Babol, 4717647745, Iran
| |
Collapse
|
41
|
Xu P, Neek-Amal M, Barber SD, Schoelz JK, Ackerman ML, Thibado PM, Sadeghi A, Peeters FM. Unusual ultra-low-frequency fluctuations in freestanding graphene. Nat Commun 2014; 5:3720. [DOI: 10.1038/ncomms4720] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 03/26/2014] [Indexed: 11/09/2022] Open
|
42
|
Kaminsky DA, Knyazhitskiy A, Sadeghi A, Irvin CG. Assessing Maximal Exercise Capacity: Peak Work or Peak Oxygen Consumption? Respir Care 2013; 59:90-6. [DOI: 10.4187/respcare.02253] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
43
|
Kuske R, Chowdhury R, Snyder M, de la Vega A, Sadeghi A. Accelerated Partial Breast Irradiation for Select Breast Cancers in the Presence of Augmentation. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
44
|
Moghimi J, Sadeghi A, Malek M, Ghorbani R. Relationship between disease activity and serum levels of vitamin D and parathyroid hormone in rheumatoid arthritis. Endocr Regul 2012; 46:61-6. [PMID: 22540853 DOI: 10.4149/endo_2012_02_61] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [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] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE Measuring vitamin D and its regulating hormones in the serum might be an accurate method for assessment of rheumatoid arthritis (RA) activity. We tested the hypothesis that the serum levels of vitamin D and parathyroid hormone (PTH) are associated with the grade of disease activity in an unselected cohort of patients with RA. METHODS A total of 158 patients who met the American College of Rheumatology criteria for RA were examined and categorized as the patients with the active RA (n = 87) and silent RA (n = 71). Blood samples were obtained after at least eight-hour overnight fasting and the levels of 25-OH-vitamin D and PTH were measured. RESULTS The levels of the vitamin D in patients with active RA were significantly lower than in those with silent RA (49.38±38.21 versus 64.64±43.61 nmol/l; p = 0.022). The PTH serum level lower than the normal range (< 0.8 nmol/l) was statistically observed similar in the active RA group compared with another ones (10.3 % versus 4.2 %, p = 0.149). Serum levels of vitamin D and PTH were not influenced by patients' gender and age as well as the duration of disease. CONCLUSION Serum level of vitamin D was inversely related to RA activity and this relationship might be independent of PTH secretion or activity.
Collapse
Affiliation(s)
- J Moghimi
- Semnan University of Medical Sciences, Semnan, Iran.
| | | | | | | |
Collapse
|
45
|
Sadeghi M, Roohafza H, Yazdekhasti S, Sadeghi A. PP-098 ASPIRIN RESISTANCE STATUS AS DETERMINED BY URINARY THROMBOXANE B2 (TXB2) LEVEL IN PATIENTS WITH ISCHEMIC HEART DISEASE AND ITS RELATIONSHIP WITH SEVERITY OF CORONARY ARTERY DISEASE. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70318-2] [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: 10/28/2022]
|
46
|
Mohammadpour M, Sadeghi A, Fassihi A, Saghaei L, Movahedian A, Rostami M. Synthesis and antioxidant evaluation of some novel ortho-hydroxypyridine-4-one iron chelators. Res Pharm Sci 2012. [PMID: 23181095 PMCID: PMC3501926] [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: 11/04/2022] Open
Abstract
A series of ortho-hydroxypyridine-4-ones were prepared in high yields and evaluated for antioxidant and iron chelating activities. N(1)-H hydroxypyridinones Va, Vb, and Ve were the best radical scavengers in DPPH free radical scavenging assay. Compound Vb was proved to be the most potent compound in hydrogen peroxide scavenging assay. All of the synthesized compounds had very close chelating ability, compounds containing N(1)-CH3 hydroxypyridinone ring were stronger chelating agents.
Collapse
Affiliation(s)
- M. Mohammadpour
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.
| | - A. Sadeghi
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.
| | - A. Fassihi
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Corresponding author: A. Fassihi, this paper is extracted from the Pharm.D theses No. 388305 and 388306 Tel. 0098 311 7922562, Fax. 0098 311 6680011
| | - L. Saghaei
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.
| | - A. Movahedian
- Department of Biochemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.
| | - M. Rostami
- Department of Medicinal Chemistry and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.
| |
Collapse
|
47
|
Zolfaghari B, Shokoohinia Y, Ramezanlou P, Sadeghi A, Mahmoudzadeh M, Minaiyan M. Effects of methanolic and butanolic fractions of Allium elburzense Wendelbo bulbs on blood glucose level of normal and STZ-induced diabetic rats. Res Pharm Sci 2012; 7:201-7. [PMID: 23248670 PMCID: PMC3523411] [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: 11/21/2022] Open
Abstract
Allium elburzense (A. elborzense, Alliaceae), a plant rich in saponins, is an edible vegetable in northern Iran with a folk background use as antidiabetic which has not yet been examined for this indication. To evaluate the antidiabetic potential of A. elburzense, its hydroalcoholic (HdAE) and butanolic extracts (BuE) were examined. The acute (1, 2, 3, 4, 8 h) and sub-acute (11 days) effects of oral (p.o.) and intraperitoneal (i.p.) administration of HdAE and BuE of A. elburzense bulbs in different doses were evaluated on blood glucose levels of normal and streptozotocin (STZ, 55 mg/kg body weight)-induced diabetic rats. Glibenclamide (1 mg/kg b.w.) was used as reference drug. Sub-acute treatment with HdAE for 11 days reduced significantly blood glucose levels in diabetic rats (at least P<0.05), while BuE was effective only following i.p. administration (P<0.01). Acute administration did not reduce blood glucose level in normal and diabetic animals. It is concluded that HdAE of A. elburzense exhibited a significant antihyperglycemic activity following chronic administration. These results provide evidence for potential use of A. elburzense in diabetes mellitus considering the fact that this plant is endemic to a location of Iran where diabetes is a high prevalence disorder.
Collapse
Affiliation(s)
- B. Zolfaghari
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - Y. Shokoohinia
- Department of Pharmacognosy and Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Kermanshah University of Medical Sciences, Kermanshah, I.R.Iran
| | - P. Ramezanlou
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - A. Sadeghi
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - M. Mahmoudzadeh
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran
| | - M. Minaiyan
- Department of Pharmacology, School of Pharmacy and Pharmaceutical Sciences and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, I.R.Iran.,
Corresponding author: M. Minaiyan, this paper is extracted from the research grant No. 185105 Tel. 0098 311 7922623, Fax. 0098 311 6680011
| |
Collapse
|
48
|
Pokharel G, Sadeghi A, Prestidge B. SU-FF-T-41: A Study of Effectiveness of Dose Volume Histogram Based Multi-Solutions Optimization Algorithm in High Dose Rate Brachytherapy for the Prostate. Med Phys 2009. [DOI: 10.1118/1.3181513] [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: 11/07/2022] Open
|
49
|
Moghaddam FM, Saeidian H, Mirjafary Z, Sadeghi A. Rapid and efficient one-pot synthesis of 1,4-dihydropyridine and polyhydroquinoline derivatives through the Hantzsch four component condensation by zinc oxide. JICS 2009. [DOI: 10.1007/bf03245840] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
50
|
Varshosaz J, Hassanzadeh F, Mahmoudzadeh M, Sadeghi A. Preparation of cefuroxime axetil nanoparticles by rapid expansion of supercritical fluid technology. POWDER TECHNOL 2009. [DOI: 10.1016/j.powtec.2008.06.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|