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Poursalehi D, Mirzaei S, Asadi A, Akhlaghi M, Lotfi K, Saneei P. Total dietary fiber intake is inversely associated with metabolically unhealthy status in adolescents with excess weight. Nutr Res 2024; 125:69-78. [PMID: 38518484 DOI: 10.1016/j.nutres.2024.02.009] [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: 09/18/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/24/2024]
Abstract
Little is known about the relationship between dietary fiber and metabolic health status in adolescents. This study was performed to investigate total dietary fiber intake and metabolic health status in a sample of Iranian adolescents with overweight/obesity. We hypothesized that higher total dietary fiber intake would reduce odds of metabolically unhealthy status. In this cross-sectional study, 203 adolescents (aged 12-18 years) with overweight/obesity were randomly recruited from several educational areas with different socioeconomic statuses using a multistage cluster sampling approach. Dietary intakes were evaluated by a validated food frequency questionnaire. Demographic, anthropometric, and cardiometabolic data were gathered through standard methods. Adolescents were categorized as having either metabolically healthy overweight/obesity or metabolically unhealthy overweight/obesity (MUO) phenotypes according to the International Diabetes Federation (IDF) and IDF/Homeostasis Model Assessment Insulin Resistance (HOMA-IR) criteria. Subjects had mean age of 13.97 (years) and mean fiber intake of 19.5 (g/d). After considering potential confounders, adolescents with the highest fiber intake, compared with the lowest intake, had decreased odds of MUO based on IDF (odds ratio [OR] = 0.14; 95% confidence interval [CI], 0.04-0.46) and IDF/HOMA-IR (OR = 0.16; 95% CI, 0.04-0.56) definitions. Also, each additional unit of total dietary fiber intake (1 g/d) was associated with lower chance of MUO phenotype considering IDF and IDF/HOMA-IR criteria. Individuals with higher intakes of dietary fiber were also less likely to have hyperglycemia (in fully adjusted model: OR = 0.17; 95% CI, 0.06-0.52). We found that consumption of total dietary fiber was inversely associated with odds of MUO among Iranian adolescents. Further prospective studies are required for confirming our results.
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Affiliation(s)
- Donya Poursalehi
- Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Keyhan Lotfi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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Heidari H, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Association of priori-defined DASH dietary pattern with metabolic health status among Iranian adolescents with overweight and obesity. Sci Rep 2024; 14:4993. [PMID: 38424444 PMCID: PMC10904873 DOI: 10.1038/s41598-024-55749-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 02/27/2024] [Indexed: 03/02/2024] Open
Abstract
There was no evidence on the relationship of Dietary Approaches to Stop Hypertension (DASH) with metabolic health condition in adolescents with overweight and obesity. The purpose of this research was to investigate the association of priori-defined DASH dietary pattern with metabolic health status among adolescents with overweight and obesity in Iran. A cross-sectional survey performed on a representative sample of adolescents with overweight and obesity (n = 203). Dietary intakes were collected via a validated food frequency questionnaire and DASH score was characterized according to eight components. Data of anthropometric measures, blood pressure, circulating insulin, fasting blood sugar, and lipid profile were collected. Metabolic health status was defined based on criteria of International Diabetes Federation (IDF) and insulin resistance (IR). Based on IDF and IDF/IR criteria, 38.9% and 33.0% of adolescents suffered from metabolically unhealthy overweight/obesity (MUO). After controlling all confounders, subjects in the highest vs. lowest tertile of DASH diet had respectively 92% and 91% lower odds of MUO based on IDF definition (OR = 0.08; 95%CI 0.03-0.22) and IDF/IR criteria (OR = 0.09; 95%CI 0.03-0.29). Subgroup analysis by sex and body mass index determined that this relationship was more powerful in girls and overweight individuals. Also, in fully adjusted model, highest vs. lowest adherence to DASH diet was linked to decreased odds of hyperglycemia (OR = 0.07; 95% CI 0.03-0.21), hypertriglyceridemia (OR = 0.26; 95% CI 0.09-0.73), low HDL cholesterolemia (OR = 0.30; 95% CI 0.12-0.73) and insulin resistance (OR = 0.07; 95% CI 0.02-0.28), as metabolic health components. Greater compliance to DASH dietary pattern was linked to a remarkable lower odd of metabolic unhealthy condition among Iranian adolescents, especially in overweight subjects and girls. More prospective surveys are required to assert these results.
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Affiliation(s)
- Hajar Heidari
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.
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Poursalehi D, Bahrami G, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Association between alternative healthy eating index (AHEI) with metabolic health status in adolescents with overweight and obesity. BMC Public Health 2024; 24:42. [PMID: 38166997 PMCID: PMC10763351 DOI: 10.1186/s12889-023-17558-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND There has been lack of evidence on the association between healthy dietary patterns and metabolic health status of adolescents. The present study aimed to evaluate the association between alternative healthy eating index (AHEI) and metabolic health status among a relatively representative sample of Iranian adolescents with overweight/obesity. METHODS Adolescents with extra body weight (n = 203, aged 12-18 y), were selected for this cross-sectional study by a multistage cluster random-sampling method. Habitual dietary intakes and diet quality of individuals were assessed using validated food frequency questionnaire and AHEI-2010, respectively. Data on other covariates were also gathered by pre-tested questionnaires. To determine fasting glucose, insulin and lipid profiles, fasting blood samples were collected. Participants were categorized as having metabolically healthy overweight/obesity (MHO) or metabolically unhealthy overweight/obesity (MUO) phenotypes, based on two approaches (International Diabetes Federation (IDF) and combination of IDF with Homeostasis Model Assessment Insulin Resistance (HOMA-IR)). RESULTS The overall prevalence of MUO was 38.9% (based on IDF criteria) and 33.0% (based on IDF/HOMA-IR criteria). After considering all potential confounders, participants in highest tertiles of AHEI-2010 had lower odds of MUO profile according to both IDF (OR = 0.05; 95% CI: 0.01-0.15) and IDF/HOMA-IR (OR = 0.05; 95% CI: 0.02-0.19) definitions. This association was stronger in adolescents with overweight compared with obese ones and also among girls than boys. Moreover, each unit increase in AHEI-2010 score was associated with lower risk of MUO based on both criteria. CONCLUSIONS Higher adherence to AHEI-2010 was inversely associated with odds of MUO in Iranian adolescents with overweight/obesity.
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Affiliation(s)
- Donya Poursalehi
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran
| | - Ghazaleh Bahrami
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.
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Asadi A, Akhavanallaf A, Hosseini SA, Vosoughi N, Zaidi H. Development and validation of an optimal GATE model for proton pencil-beam scanning delivery. Z Med Phys 2023; 33:591-600. [PMID: 36424313 PMCID: PMC10751712 DOI: 10.1016/j.zemedi.2022.10.008] [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: 12/10/2021] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To develop and validate a versatile Monte Carlo (MC)-based dose calculation engine to support MC-based dose verification of treatment planning systems (TPSs) and quality assurance (QA) workflows in proton therapy. METHODS The GATE MC toolkit was used to simulate a fixed horizontal active scan-based proton beam delivery (SIEMENS IONTRIS). Within the nozzle, two primary and secondary dose monitors have been designed to enable the comparison of the accuracy of dose estimation from MC simulations with respect to physical QA measurements. The developed beam model was validated against a series of commissioning measurements using pinpoint chambers and 2D array ionization chambers (IC) in terms of lateral profiles and depth dose distributions. Furthermore, beam delivery module and treatment planning has been validated against the literature deploying various clinical test cases of the AAPM TG-119 (c-shape phantom) and a prostate patient. RESULTS MC simulations showed excellent agreement with measurements in the lateral depth-dose parameters and spread-out Bragg peak (SOBP) characteristics within a maximum relative error of 0.95 mm in range, 1.83% in entrance to peak ratio, 0.27% in mean point-to-point dose difference, and 0.32% in peak location. The mean relative absolute difference between MC simulations and measurements in terms of absorbed dose in the SOBP region was 0.93% ± 0.88%. Clinical phantom studies showed a good agreement compared to research TPS (relative error for TG-119 planning target volume PTV-D95 ∼ 1.8%; and for prostate PTV-D95 ∼ -0.6%). CONCLUSION We successfully developed a MC model for the pencil beam scanning system, which appears reliable for dose verification of the TPS in combination with QA information, prior to patient treatment.
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Affiliation(s)
- Ali Asadi
- Department of Energy Engineering, Sharif University of Technology, Tehran, Iran
| | - Azadeh Akhavanallaf
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva, Switzerland
| | | | - Naser Vosoughi
- Department of Energy Engineering, Sharif University of Technology, Tehran, Iran
| | - Habib Zaidi
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva, Switzerland; Geneva University Neurocenter, Geneva University, Geneva, Switzerland; Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Nuclear Medicine, University of Southern Denmark, Odense, Denmark.
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Tirani SA, Mirzaei S, Asadi A, Asjodi F, Iravani O, Akhlaghi M, Saneei P. Associations of Fruit and Vegetable Intake with Metabolic Health Status in Overweight and Obese Youth. Ann Nutr Metab 2023; 79:361-371. [PMID: 37549644 DOI: 10.1159/000533343] [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] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023]
Abstract
INTRODUCTION The objective of this study was to assess the relationship between fruit and vegetable intake with metabolic health status among overweight and obese Iranian youth. METHODS In total, 203 obese and overweight youth including 101 boys and 102 girls, 12-18 years, were randomly recruited through a multistage cluster sampling approach in this study. A validated Persian format of food frequency questionnaire was used to estimate participants' usual food intake. Adolescents were categorized in accordance with the International Diabetes Federation (IDF) criteria as well as IDF plus insulin resistance (HOMA-IR) definition into metabolically healthy obese and metabolically unhealthy obese (MUO). RESULTS Based on IDF criteria, youth in the third tertile of vegetable and the combination of fruit and vegetable intake had 66% (odds ratio = 0.34, 95% CI: 0.12-0.95) and 73% (odds ratio = 0.27, 95% CI: 0.09-0.81) lower odds of MUO compared to those in the first tertile, in the fully-adjusted model. According to IDF plus HOMA-IR definition, inverse associations were also found between vegetable (odds ratio = 0.36, 95% CI: 0.12-1.02) and the combination of fruit and vegetable (odds ratio = 0.25, 95% CI: 0.08-0.79) intake with MUO phenotype. Stratified analysis indicated inverse associations between intake of vegetables and the combination of fruits and vegetables with MUO phenotype (based on IDF definition) in overweight, but not obese subjects. CONCLUSION The current study demonstrated that greater consumption of vegetables as well as the combination of fruits and vegetables was related to a lower risk of MUO phenotype, particularly in overweight youth.
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Affiliation(s)
- Shahnaz Amani Tirani
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran,
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Foad Asjodi
- Iranmall Sports Medicine Clinic (IFMARK), FIFA Medical Center of Excellence, Tehran, Iran
| | - Orod Iravani
- Iranmall Sports Medicine Clinic (IFMARK), FIFA Medical Center of Excellence, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Tirani SA, Lotfi K, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. The relation between dietary phytochemical index and metabolic health status in overweight and obese adolescents. Sci Rep 2023; 13:12059. [PMID: 37491451 PMCID: PMC10368731 DOI: 10.1038/s41598-023-39314-z] [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: 04/20/2023] [Accepted: 07/23/2023] [Indexed: 07/27/2023] Open
Abstract
Previous studies have rarely investigated dietary phytochemicals consumption in relation to metabolic health of adolescents. The current study was performed to investigate dietary phytochemical index (DPI) in relation to metabolic health status in overweight and obese adolescents. This cross-sectional study was conducted among 203 adolescents with overweight or obesity. Dietary intakes of participants were obtained through a validated 147-item food frequency questionnaire. DPI was calculated [(dietary energy derived from phytochemical-rich foods (kcal)/total daily energy intake (kcal)) ⨯100]. Glycemic and lipid profiles, blood pressure, and anthropometric indices were also measured. A metabolically unhealthy overweight/obesity (MUO) profile was determined based on the International Diabetes Federation (IDF) and IDF/Homeostasis Model Assessment Insulin Resistance (HOMA-IR) definitions. Study subjects had a mean age of 13.98 years and 50.2% of them were girls. According to IDF and IDF/HOMA-IR criteria, 38.9% (37 boys, and 42 girls) and 33% (35 boys, and 32 girls) of the study participants were respectively MUO. According to IDF and IDF/HOMA-IR definitions, adolescents in the third DPI tertile had respectively 61% (maximally-adjusted OR = 0.39, 95%CI 0.16-0.91) and 67% (maximally-adjusted OR = 0.33, 95%CI 0.13-0.83) lower odds of being MUO, compared to the first tertile. Stratified analysis by sex indicated that DPI was inversely related to MUO phenotype based on IDF criteria in girls (maximally-adjusted OR = 0.25, 95%CI 0.06-0.98), but not in boys. The current study found that adolescents with a higher dietary intake of phytochemicals have lower odds of being MUO, particularly among girls. However, further large-scale prospective cohort studies are required to confirm this finding.
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Affiliation(s)
- Shahnaz Amani Tirani
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran
| | - Keyhan Lotfi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.
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Qutbi M, Ahmadi R, Hosseinzadeh E, Asadi A. Gastric Emptying Scintigraphy: Diagnostic Value of Delayed Imaging and the Impact on Reclassification of Diagnosis. Mol Imaging Radionucl Ther 2023; 32:117-122. [PMID: 37337772 DOI: 10.4274/mirt.galenos.2021.65902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023] Open
Abstract
Objectives To investigate the added diagnostic value of delayed imaging at 3 and 4 h compared to 2 h imaging as well as scanning up to 4 h compared to 3, and by this means, diagnosis reclassification or changes in diagnosis across various time points. Methods Seventeen patients clinically suspected of gastroparesis, 8 (47.1%) men and 9 (52.9%) women, according to the standard procedural guidelines, underwent gastric emptying scintigraphy after ingesting a standard meal. One-minute static images in anterior and posterior projections were acquired immediately after ingestion and then at 1-, 2-, 3- , and 4 h time points. For image analysis, a manual region-of-interest was drawn, and then, count of stomach in each projection was used to calculate geometric mean for each time point. Decay correction was applied. At 2-, 3- and 4 h time points, percentage of retained activity was compared to standard values; therefore, each patient was labeled as normal or delayed. Results Pairwise correlation between time points was statistically significant. Value of hour 3 shows an extremely strong correlation with the value of hour 4 (r=0.951, p<0.001). In hour 2, of 17 participants, 11 (64.7%) were diagnosed as normal and 6 (35.3%) as delayed. In hour 3, the diagnosis made as delayed rose to 9 (52.9%), whereas normal was 8 (47.1%). Finally, in hour 4, results were 10 (58.8%) as delayed and 7 (41.2%) as normal. All subjects who were labeled as delayed in hour 3 remained with the same diagnosis and 1 out of 8 subjects categorized as normal in hour 3 changed to delayed. For testing agreement, coefficient of kappa was computed between each pair. Agreement between diagnosis in hour 2 with hours 3 or 4 was not strong (kappa <0.6 for both pairs). However, a strong agreement was found between diagnosis in hours 3 and 4 (kappa: 0.881). Conclusion Because of excellent correlation between values of hours 3 and 4 and strong agreement between the diagnosis in those time points, extending acquisition from 3 to 4 h adds little to the final dai gnosis and may not be noticeably meaningful, especially in the clinical setting.
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Affiliation(s)
- Mohsen Qutbi
- Department of Nuclear Medicine, Taleghani Hospital Clinical Research Development Unit, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reyhane Ahmadi
- Department of Nuclear Medicine and Molecular Imaging, Farshchian Heart Center, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Elinaz Hosseinzadeh
- Department of Nuclear Medicine, Taleghani Hospital Clinical Research Development Unit, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Asadi
- Department of Nuclear Medicine, Taleghani Hospital Clinical Research Development Unit, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Heshmatipour H, Hajhashemy Z, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Association of legumes and nuts consumption with metabolic health status in Iranian overweight and obese adolescents. Sci Rep 2023; 13:5784. [PMID: 37031265 PMCID: PMC10082840 DOI: 10.1038/s41598-023-32961-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/05/2023] [Indexed: 04/10/2023] Open
Abstract
Limited data are available on the association of legumes and nuts consumption with health status in pediatrics. So, we assessed the relation of legumes and nuts intake with metabolic health status in Iranian adolescents. A random sample of overweight/obese adolescents aged 12 to 18 years was included in this cross-sectional study. Dietary intakes were gathered using a validated 147-item food frequency questionnaire (FFQ). We measured metabolic indices including blood pressure, lipid profile, glycemic and anthropometrics indices. Two strategies were used for classification of adolescents to metabolically healthy obese (MHO) or unhealthy obese (MUO): International Diabetes Federation (IDF) and combination of IDF with Homeostasis Model Assessment Insulin Resistance (HOMA-IR). Information on 203 overweight/obese adolescents (50.2% girls and 49.8% boys) with an average age of 13.98 (± 1.61) years and a mean weight of 73.48 (± 11.60) kg/m2 was evaluated. Based on the IDF and IDF/HOMA-IR definition, higher consumption of legumes and nuts consumption was related to a 66% and 61% decreased odds of MUO in crude model (OR = 0.34, 95%CI 0.17-0.69), (OR = 0.39, 95%CI 0.19-0.80); but in fully-adjusted model, these relations disappeared. After adjustment for potential cofounders, an inverse association was found between legumes and nuts consumption and odds of hyperglycemia (OR = 0.35, 95%CI 0.16-0.78). Moreover, although inverse significant associations were found between legumes and nuts consumption and odds of MUO in girls and overweight subjects in crude models, these associations disappeared after adjustment for all confounders. After taking potential confounders into account, no significant association was found between consumption of legumes and nuts and MUO in Iranian adolescents. The findings should be affirmed by further prospective studies.
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Affiliation(s)
- Houri Heshmatipour
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Hajhashemy
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, PO Box 81745-151, Iran.
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Asadi A, Daneshfar A, Maleki B, Aiken CA. Effects of attentional focus and gaze instruction during observational learning of a basketball free-throw. Hum Mov Sci 2023; 87:103038. [PMID: 36435171 DOI: 10.1016/j.humov.2022.103038] [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: 04/17/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022]
Abstract
Observational learning has long been used to instruct individuals on how to perform a novice motor skill. Recently, research has shown a benefit to instructing learners to focus externally when viewing a video model (Asadi, Aiken, Heidari, & Kochackpour, 2021). Research has also highlighted the effectiveness of modeling correct gaze behaviors when learning a cognitive task (Jarodzka, van Gog, Dorr, Scheiter, & Gerjets, 2013). The purpose of the present study was to investigate the effectiveness of combining these two modalities. 40 individuals with a mean age of 21.77 ± 1.40 performed a novel motor task where they were asked to either focus internally or externally, and were provided with traditional instruction or were provided with an experienced performer's gaze behaviors while viewing a video demonstration. It was observed that both the external focus groups and the gaze instructed groups performed a basketball free-throw more accurately and had longer periods of quiet eye than an internal focus or traditional verbal instruction (p's < 0.05). Eye tracking also allowed for the assessment of attentional focus adherence. Participants focused on the instructed cues significantly more than irrelevant task aspects or a different focus types (p's < 0.05). These results highlight the effectiveness of cuing a learner to focus externally during observational learning. It also highlights the usefulness of providing correct gaze behaviors when observing a model.
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Affiliation(s)
- A Asadi
- Department of Motor Behavior, Faculty of Sport Sciences, Alzahra University, Tehran, Iran
| | - A Daneshfar
- Department of Motor Behavior, Faculty of Sport Sciences, Alzahra University, Tehran, Iran.
| | - B Maleki
- Department of Physical Education and Sport Science, Yadegar-e-Imam Khomeini (RAH) Shahre-rey Branch, Islamic Azad University, Tehran, Iran
| | - C A Aiken
- Department of Kinesiology, New Mexico State University, Las Cruces, NM, USA
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Khajeh Azad MA, Faghankhani M, Asadi A, Golalipour E, Shariat SV, Naserbakht M, Bahador H, Agah S, Ansari G, Barzkar F, Baradaran HR. The Effects of an Empathic Communication Workshop on Internal Medicine Residents' Self-Perceived Empathy and Their Patients' Perception of Physician's Empathy: A Single-Group Experimental Study. Med J Islam Repub Iran 2022; 36:137. [PMID: 36479531 PMCID: PMC9719582 DOI: 10.47176/mjiri.36.137] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Indexed: 12/24/2022] Open
Abstract
Background: Empathetic communication improves the physician-patient relationship and enhances patient and physician satisfaction. This study aims to evaluate the impact of empathic communication skills training on physicians' self-perceived performance and patient satisfaction regarding the empathetic quality of their relationship with their physicians. Methods: In this single-group before-after experimental study, we recruited 50 internal medicine residents at a large teaching hospital. We assessed the residents' empathy using the Jefferson Scale of Empathy before and 3 weeks after an 8-hour workshop on empathic communication skills. We also recruited 50 of their patients before and another 50 patients 3 weeks after the training to assess the patient's perceptions of their physician's empathy using the Consultation and Relational Empathy scale. Physicians' and patients' mean scores on empathetic care at the beginning of the study were then compared using paired t-tests with their scores after the workshop. Results: The residents' mean score on Jefferson Empathy Scale increased from 81.1(95%CI:78.8-83.3) at baseline to 96.8(95%CI:93.6-100) following the workshop (p < 0.001). Before the empathetic communication skills training, patients assessed their doctors' empathy at 68.3(95%CI:63.5-73.2). After the intervention, this improved to 84.9(95%CI:82.2-87.5) (p < 0.001). Conclusion: In this study, both the residents and their patients stated that the residents' empathy skills had significantly improved after an empathetic communication workshop for internal medicine residents.
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Affiliation(s)
- Mohammad Amin Khajeh Azad
- Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Faghankhani
- Department of Public Health, Brown School of Public Health, Washington University in Saint Louis, Saint Louis, Missouri, USA , Mental Health Research Center, School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran Iran
| | - Ali Asadi
- School of Behavioral Science and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran
| | - Elnaz Golalipour
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Vahid Shariat
- School of Behavioral Science and Mental Health (Tehran Institute of Psychiatry), Iran University of Medical Sciences, Tehran, Iran
| | - Morteza Naserbakht
- Mental Health Research Center, Psychological Health research institute (PHRI), Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Bahador
- Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
| | - Shahram Agah
- Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Golnoosh Ansari
- Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Barzkar
- Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Baradaran
- Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran, Corresponding author:Hamid Reza Baradaran,
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11
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Tirani SA, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Dairy intake in relation to metabolic health status in overweight and obese adolescents. Sci Rep 2022; 12:18365. [PMID: 36319803 PMCID: PMC9626638 DOI: 10.1038/s41598-022-22827-4] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/19/2022] [Indexed: 11/13/2022] Open
Abstract
There was a lack of evidence on the association between dairy intake and metabolic health status in overweight/obese adolescents. This study evaluated the association between dairy intake and metabolic health status in overweight/obese Iranian adolescents. Overweight/obese adolescents (n = 203; 101 boys and 102 girls) selected by a multistage cluster random sampling method have participated in this cross-sectional study. Dietary intake was assessed using a validated 147-item food frequency questionnaire. Anthropometric indices, blood pressure, fasting glucose, insulin, and lipid profile were measured. Participants were categorized to metabolically healthy obese (MHO) and metabolically unhealthy obese (MUO) according to International Diabetes Federation (IDF) criteria and a combination of IDF with Homeostasis Model Assessment Insulin Resistance (HOMA-IR) criteria. The frequency of MUO based on IDF, and IDF/HOMA-IR definitions was 38.9% and 33.0%, respectively. In fully-adjusted model, participants in the highest tertile of dairy intake had 61% lower odds of MUO based on IDF criteria (OR = 0.39, 95% CI 0.15-0.99). Higher dairy intake was associated with a non-significant lower risk of MUO according to IDF/HOMA-IR definition in the maximally-adjusted model (OR = 0.44, 95% CI 0.17-1.16). Stratifies analysis by sex and body mass index revealed that the association was stronger in girls and overweight subjects. Furthermore, higher intake of low-fat dairy was related to a reduced likelihood of MUO, while higher intake of high-fat dairy was related to increased odds of MUO. This community-based cross-sectional study revealed that higher intake of dairy was associated with a significant lower odd of MUO among Iranian adolescents, especially in girls and overweight subjects.
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Affiliation(s)
- Shahnaz Amani Tirani
- grid.411036.10000 0001 1498 685XDepartment of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students’ Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- grid.412571.40000 0000 8819 4698Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- grid.46072.370000 0004 0612 7950Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- grid.412571.40000 0000 8819 4698Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- grid.411036.10000 0001 1498 685XDepartment of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran
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12
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Mohammadi S, Lotfi K, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Dietary total antioxidant capacity in relation to metabolic health status in overweight and obese adolescents. Nutr J 2022; 21:54. [PMID: 36038871 PMCID: PMC9426225 DOI: 10.1186/s12937-022-00806-9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 08/25/2022] [Indexed: 11/28/2022] Open
Abstract
Background Although several studies evaluated the relationship between individual dietary antioxidants and metabolic health conditions, data on the association between dietary total antioxidant capacity and metabolic health among children and adolescents is limited. This study investigated the relationship between dietary total antioxidant capacity and metabolic health status in Iranian overweight/obese adolescents. Methods This cross-sectional study was conducted on 203 overweight/obese adolescents. Dietary intakes were evaluated by a validated food frequency questionnaire. Ferric Reducing-Antioxidant Power (FRAP) was considered to indicate dietary total antioxidant capacity. Anthropometric parameters and blood pressure status were measured. Fasting blood samples were obtained to determine circulating insulin, glucose, and lipid profile. Two different methods (modified International Diabetes Federation (IDF) criteria and IDF criteria along with insulin resistance) were applied to classify participants as metabolically healthy obese (MHO) or metabolically unhealthy obese (MUO). Results According to IDF and IDF/HOMA definitions, a total of 79 (38.9%) and 67 (33.0%) adolescents were respectively defined as MUO. Considering IDF criteria, the highest tertile of FRAP was related to lower odds of being MUO in the maximally-adjusted model (OR: 0.40; 95%CI: 0.16–0.96), compared to the lowest tertile. However, based on the IDF/HOMA-IR criteria, no significant relation was found between FRAP and odds of MUO (OR: 0.49; 95%CI: 0.19–1.23) after considering all possible confounders. Conclusions Adolescents with higher intakes of dietary antioxidants have a lower possibility of being MUO based on IDF criteria. However, no substantial relation was found considering HOMA-IR/IDF definition. Further prospective cohort studies need to be done to confirm these findings.
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Affiliation(s)
- Sobhan Mohammadi
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Keyhan Lotfi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.
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13
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Lotfi K, Mohammadi S, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Dietary total, plant and animal protein intake in relation to metabolic health status in overweight and obese adolescents. Sci Rep 2022; 12:10055. [PMID: 35710856 PMCID: PMC9203557 DOI: 10.1038/s41598-022-14433-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/10/2022] [Accepted: 06/07/2022] [Indexed: 12/15/2022] Open
Abstract
Few studies have investigated dietary total protein intake and its subtypes in relation to metabolic health status. We explored the relation between dietary total, plant and animal protein intake with metabolic health status in Iranian overweight/obese adolescents. Overweight/obese adolescents (n = 203) were selected for this cross-sectional study by multistage cluster random-sampling method. A validated food frequency questionnaire was used to evaluate dietary intakes. Total, plant and animal protein intake were considered as percentage of energy intake. Anthropometric indices, blood pressure, lipid and glycemic profiles were collected. Participants were classified as metabolically healthy obese (MHO) or unhealthy obese (MUO) based on International Diabetes Federation (IDF) and IDF/Homeostasis Model Assessment Insulin Resistance (HOMA-IR) definitions. Subjects had a mean age of 13.98 years, and 50.2% of them were girls. Based on IDF criteria, adolescents in the top tertile of total (OR = 0.32; 95% CI 0.13–0.77), plant (OR = 0.30; 95% CI 0.10–0.91), and animal (OR = 0.20; 95% CI 0.08–0.54) protein intake had lower odds of being MUO compared to the reference category. Considering IDF/HOMA-IR criteria, subjects in the highest tertile of total (OR = 0.31; 95% CI 0.12–0.79) and animal (OR = 0.17; 95% CI 0.06–0.49) protein intake were less likely to be MUO. However, no substantial association was observed with plant protein intake. Also, an inverse association was observed between each SD increase in total and animal protein with MUO odds. We found inverse association between total, plant and animal protein intake and chance of being MUO in adolescents. Further prospective studies are needed to confirm the findings.
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Affiliation(s)
- Keyhan Lotfi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Sobhan Mohammadi
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, PO Box 81745-151, Isfahan, Iran.
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14
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Hajhashemy Z, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Association of Dietary Insulin Index and Dietary Insulin Load With Metabolic Health Status in Iranian Overweight and Obese Adolescents. Front Nutr 2022; 9:821089. [PMID: 35369069 PMCID: PMC8969564 DOI: 10.3389/fnut.2022.821089] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/15/2022] [Indexed: 11/24/2022] Open
Abstract
Background Limited data are available on the association of dietary insulin load (DIL) and dietary insulin index (DII) with health status in pediatrics. We aimed to investigate the relationship of DIL and DII with metabolic health status in Iranian overweight/obese adolescents. Methods In this cross-sectional study, using a multistage cluster random-sampling method, 203 overweight/obese adolescents (aged 12 to <18 years) were included. A validated 147-item food frequency questionnaire (FFQ) was used for a dietary intake assessment. Glycemic and lipid profile, blood pressure (BP), and anthropometric indices were measured. Participants were categorized as metabolically healthy obese (MHO) or metabolically unhealthy obese (MUO) using the two methods of the International Diabetes Federation (IDF) and a combination of IDF with Homeostasis Model Assessment Insulin Resistance (HOMA-IR). Results According to IDF and IDF/HOMA-IR strategies, 38.9% (n = 79) and 33.0% (n = 67) of participants belonged to MUO category. After adjustments for potential confounders, subjects in the highest tertile of DIL in comparison with those in the lowest tertile had the odds ratio (OR) values of 8.44 (95% CI: 2.24-31.78) and 5.86 (95% CI: 1.39-24.58) for MUO based on IDF and IDF/HOMA-IR definitions, respectively. Moreover, after considering potential confounders, adolescents in the highest tertile of DII, compared to the lowest tertile, were, respectively, 6.93 (OR: 6.93; 95% CI: 2.59-18.57) and 5.26 (OR: 5.26; 95% CI: 1.85-14.97) times more likely to be MUO, based on IDF and IDF/HOMA-IR definitions. A significant decreasing trend was observed for OR of MUO in tertiles of DIL and DII. The stratified analysis revealed that these associations were stronger in obese participants; in overweight subjects, the association was not independent of confounders. Conclusion This population-based study revealed that higher DIL and DII were strongly related to increased OR of MUO in Iranian adolescents, especially in obese participants. Further investigations, especially with a prospective design, are needed to affirm these findings.
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Affiliation(s)
- Zahra Hajhashemy
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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15
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Taghva A, Noorbala AA, Khademi M, Shahriari A, Nasr Esfahani M, Asadi A, Mohsenifar J, Yousefifard A, Abolhassani M, Bolhari J, Hajebi A, Rahnejat AM, Shahed-Haghghadam H. Clergy's Viewpoint Change Toward Mental Health and Stigma on Mental Illness: A Short Course Training. Front Psychiatry 2022; 13:864806. [PMID: 35432029 PMCID: PMC9010651 DOI: 10.3389/fpsyt.2022.864806] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND As stigma is one of the main barriers in promoting the mental health, the present study was designed with the purpose of reviewing clergy's viewpoint regarding the effect of mental health workshops on these barriers. METHODS For this study, by order of Iran's Health Ministry, a questionnaire was designed to examine the clergy's viewpoint related to mental illnesses and the consequent stigma. Ten faculty members and psychiatrists confirmed the questionnaire's validity after some modifications. In this research, 30 members of the clergy from the main religious city in Iran's "Qom" Seminary attended the training workshops for 2 days. The data obtained from the clergy's responses were analyzed using the SPSS software (ver.16) and descriptive and analytical tests. Also, the significance level was considered p < 0.05 in all tests. The results exhibited that the mean and standard deviation (Mean ± SD) of the clergy's attitude domain and awareness before the workshop was 1.90 ± 26.30 and 8.31 ± 1.64, respectively. Also, average and standard deviation (Mean ± SD) of their attitude domain and awareness after the workshop was 1.95 ± 29.73 and 1.18 ± 10.70, respectively. DISCUSSION The present study, which was designed to examine the clergy's viewpoint toward mental illnesses and the consequent stigma in the most considerable religious base in the country, illustrated that one strategy for reducing mental illness stigma in religious communities can be by holding training sessions to promote the clergy's awareness of and attitude toward mental health. CONCLUSION There was a significant statistical difference between their awareness and attitude scores before and after the workshop (p < 0.01). In the present research, the awareness and attitude of clergy toward mental health and stigma due to mental illness was relatively good and significantly increased by holding the workshop.
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Affiliation(s)
- Arsia Taghva
- Department of Psychiatry, Aja University of Medical Sciences, Tehran, Iran
| | - Ahmad Ali Noorbala
- Department of Psychiatry, Psychosomatic Medicine Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Khademi
- Division of Child and Adolescent Psychiatry, Department of Psychiatry, School of Medicine, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Shahriari
- Department of Clinical Psychology, Aja University of Medical Sciences, Tehran, Iran
| | | | - Ali Asadi
- Deputy Mental Health Office, Social Addiction Ministry of Health, Tehran, Iran
| | - Jafar Mohsenifar
- Department of Psychology, Disaster and Trauma Research Center, 505 Hospital, Aja University of Medical Sciences, Tehran, Iran
| | | | - Moussa Abolhassani
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Jafar Bolhari
- Department of Psychiatry, Spiritual Health Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Hajebi
- Department of Psychiatry, School of Medicine, Research Center for Addiction and Risky Behaviors, Social Injury Prevention Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Mohsen Rahnejat
- Department of Clinical Psychology, Aja University of Medical Sciences, Tehran, Iran
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16
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Mohammadi S, Lotfi K, Mirzaei S, Asadi A, Akhlaghi M, Saneei P. Adherence to Mediterranean Diet and Its Association with Metabolic Health Status in Overweight and Obese Adolescents. Int J Clin Pract 2022; 2022:9925267. [PMID: 36043034 PMCID: PMC9377836 DOI: 10.1155/2022/9925267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/17/2022] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Obesity is becoming more prevalent around the world and greatly contributes to chronic disease progression. Previous studies have investigated individual food groups in relation to metabolic health status of adolescents, mainly in Western countries. Limited data are available on the association between dietary patterns and metabolic health in Middle East nations, where childhood overweight/obesity is increasing drastically. Therefore, we investigated the relationship between the Mediterranean diet and metabolic health status among Iranian adolescents. METHODS This cross-sectional study was conducted on 203 overweight/obese adolescents. Dietary intakes were evaluated by a validated food frequency questionnaire. Anthropometric parameters and blood pressure were measured. Fasting blood samples were obtained to determine circulating insulin, glucose, and lipid profile. Two different methods were applied to classify participants as metabolically healthy obese (MHO) or unhealthy obese (MUO): International Diabetes Federation (IDF) criteria and IDF along with insulin resistance (HOMA-IR) criteria. RESULTS A total of 79 (38.9%) and 67 (33.0%) adolescents were, respectively, categorized as MUO, based on IDF and IDF/HOMA definitions. Considering IDF criteria, higher adherence to the Mediterranean diet was related to lower odds of being MUO, both in the crude (OR: 0.17; 95%CI: 0.08-0.37) and fully adjusted model (OR: 0.33; 95% CI: 0.13-0.84). Excluding each component from the score made the association insignificant, except for two components of meat and dairy products. Based on the IDF/HOMA-IR criteria, there was no significant association between Mediterranean diet score and MUO, after considering all potential confounders (OR: 0.47; 95% CI: 0.17-1.30). CONCLUSIONS We found an inverse association between the Mediterranean diet and odds of MUO among Iranian adolescents, based on IDF criteria. No significant relation was found when MUO was defined based on HOMA-IR/IDF criteria. Further prospective cohort studies are needed to confirm these findings.
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Affiliation(s)
- Sobhan Mohammadi
- Department of Community Nutrition, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Keyhan Lotfi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Mirzaei
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Asadi
- Department of Exercise Physiology, School of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvane Saneei
- Department of Community, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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17
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Hajebi A, Asadi A, Ghoddousi SE, Ziadlou T, Mehrabi M, Vaezi Z, Hajebi A, Abbasinejad M. Mental Health and Prevention of Substance Use Programs in Iran: Component of the National Action Plan for Prevention and Control of Non-communicable Diseases. Med J Islam Repub Iran 2022; 36:171. [PMID: 36896240 PMCID: PMC9989978 DOI: 10.47176/mjiri.36.171] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 03/11/2023] Open
Abstract
Background: Mental disorders have a high prevalence and significant burden among all health conditions across the world and in Iran. Therefore, some targets in the field of mental health and substance and alcohol use prevention have been included in the National Action Plan for Prevention and Control of Non-communicable Diseases and Related Risk Factors. Methods: Keeping in mind the key priorities, important strategies have been considered for attaining the main targets in this field. These strategies fall under four categories of governance, prevention and reduction of risk factors, health care, and surveillance, and monitoring and evaluation strategies. Conclusion: The success of mental health and substance and alcohol use prevention programs in Iran can be partly related to the evidence-based approach adopted and also to the commitment of high-rank officials of the Ministry of Health and Medical Education to the principal strategy of increasing access to the general population to basic mental health services, among all other non-communicable diseases.
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Affiliation(s)
- Ahmad Hajebi
- Research Center for Addiction and Risky Behaviors, Psychiatric Department, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Asadi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Seyyed Ebrahim Ghoddousi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Tahereh Ziadlou
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Maryam Mehrabi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Zahra Vaezi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Amirali Hajebi
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Abbasinejad
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
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18
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Hajebi A, Rasoulian M, Fathi M, Tiyuri A, Abbasinejad M, Naserbakht M, Asadi A, Khademoreza N. Randomized controlled trial for the efficacy of three versus five sessions of grief counseling on the psychological aspects following COVID-19 bereavement: A study protocol. Front Psychiatry 2022; 13:1047448. [PMID: 36545034 PMCID: PMC9760675 DOI: 10.3389/fpsyt.2022.1047448] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 11/10/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND During the COVID-19 pandemic, many people have experienced traumatic losses and therefore are at risk of developing complicated grief regarding the restrictions on the performance of routine mourning rituals. This study is a randomized controlled trial for assessing the efficacy of three versus five sessions of grief counseling on grief intensity, psychological distress, and quality of life of grief among bereaved people due to COVID-19. METHODS A total of 120 bereaved people, due to COVID-19, will be enrolled in this multi-center randomized controlled trial after assessment for inclusion and exclusion criteria. Following the informed consent procedure, participants will be allocated into two groups equally by the Stratified Balanced Block Randomization, one of them delivering a three-session grief counseling intervention and the other delivering a five-session grief counseling intervention. The intervention will be delivered by trained psychologists via in-person individual sessions. The primary outcome is grief intensity, and the secondary outcomes are psychological distress, quality of life, and satisfaction of the participants. These outcomes will be measured by the Grief Intensity Scale (GIS), the General Health Questionnaire-28 (GHQ-28), the Short Form Health Survey-12 (SF-12), and the Client Satisfaction Questionnaire (CSQ-8), respectively. The assessments will be done at three time points, one before the intervention and the others 1 month and 3 months after the intervention. The data will be analyzed using the SPSS V.18 and Stata V.11 software. The analysis approach will be "intention to treat." DISCUSSION Results of this study can be applied for selecting the most suitable intervention leading to the prevention of complicated grief and the maintenance and promotion of the mental health of bereaved people due to COVID-19. CLINICAL TRIAL REGISTRATION [irct.ir], identifier [IRCT20200505047305N1].
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Affiliation(s)
- Ahmad Hajebi
- Research Center for Addiction & Risky Behaviors (ReCARB), Psychosocial Health Research Institute, Iran University of Medical Sciences, Tehran, Iran.,Department of Psychiatry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Rasoulian
- Department of Psychiatry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Mental Health Research Center, Psychosocial Health Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Marjan Fathi
- Health Deputy, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Tiyuri
- Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Abbasinejad
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Morteza Naserbakht
- Mental Health Research Center, Psychosocial Health Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Asadi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Nooshin Khademoreza
- Mental Health Research Center, Psychosocial Health Research Institute, School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran, Iran
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Asadi A, Hosseini SA. Investigation of the gamma-ray shielding performance of the B2O3-Bi2O3-ZnO-Li2O glasses based on the Monte Carlo approach. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109784] [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]
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20
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Hajebi A, Sharifi V, Abbasinejad M, Asadi A, Jafari N, Ziadlou T, Khadem S, Asgardoon MH, Damari B. Integrating Mental Health Services into the Primary Health Care System: The Need for Reform in Iran. Iran J Psychiatry 2021; 16:320-328. [PMID: 34616466 PMCID: PMC8452841 DOI: 10.18502/ijps.v16i3.6258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/26/2020] [Revised: 10/01/2020] [Accepted: 10/21/2020] [Indexed: 11/24/2022]
Abstract
Objective: The main objective of this study was to review aspects of the current situation and structure of the integrated mental health care services for planning a reform. Aspects of the newly designed infrastructure, along with specification of duties of the various human resources, and its relation with Iran’s Comprehensive Mental and Social Health Services (the SERAJ Program), will also be presented Method: This is a study on service design and three methods of literature review, deep interview with stakeholders, and focused group discussions. In the literature review, national and international official documents, including official reports of the World Health Organization (WHO) and consultant field visits, were reviewed. Deep semi-structured interviews with 9 stakeholders were performed and results were gathered and categorized into 3 main questions were analyzed using the responsibility and effectiveness matrix method. The Final results were discussed with experts, during which the main five-domain questions were asked and the experts’ opinions were observed. Results: In this study, the main gaps of the public mental health care (PHC) services in Iran were identified, which included reduction of risk factors for mental disorders, training the general population, early recognition and treatment of patients with mental disorders, educating patients and their families, and rehabilitation services. The new model was then proposed to fill these gaps focusing on increasing access, continuity of care, coordination in service delivery, and comprehensiveness of care. A mental health worker was placed besides general healthcare workers and general practitioners (GPs). Services were prioritized and the master flowchart for mental health service delivery was designed. Conclusion: A reform was indeed necessary in the integrated mental health services in Iran, but regarding the infrastructure needed for this reform, including human and financial resources, support of the senior authorities of the Ministry of Health (MOH) is necessary for the continuity and enhancement of services. In this model, attention has been given to the principles of integrating mental health services into primary health care. Current experience shows that the primary health care system has been facing many executive challenges, and mental health services are not exclusion to this issue. Monitoring and evaluation of this model of service and efforts for maintaining sustainable financial resources is recommended to make a reform in this system and to stabilize it.
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Affiliation(s)
- Ahmad Hajebi
- Research Center for Addiction and Risky Behaviors (ReCARB), Psychiatric Department, Iran University of Medical Sciences, Tehran, Iran
| | - Vandad Sharifi
- Department of Psychiatry, Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Abbasinejad
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Ali Asadi
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Nahid Jafari
- Deputy for Public Health, Golestan University of Medical Sciences, Gorgan, Iran
| | - Tahereh Ziadlou
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Sedigheh Khadem
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education, Tehran, Iran
| | - Mohammad Hossein Asgardoon
- Department of Governance and Health, Neuroscience Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Student Society for Immunodeficiencies, Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Behzad Damari
- Department of Governance and Health, Neuroscience Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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21
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Asadi A, Moghaddam Nia A, Bakhtiari Enayat B, Alilou H, Ahmadisharaf E, Kimutai Kanda E, Chessum Kipkorir E. An integrated approach for prioritization of river water quality sampling points using modified Sanders, analytic network process, and hydrodynamic modeling. Environ Monit Assess 2021; 193:482. [PMID: 34241689 DOI: 10.1007/s10661-021-09272-y] [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] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Determination of the water quality monitoring network (WQMN) is a vital stage for surveying ecosystem health. Studies have been done in determining the optimal number and location of sampling points, but seasonality of water quality, especially for heavy metals, has been rarely studied. For the first time, this study proposes a framework to determine the optimal location of sampling points to monitor lead (Pb). This study was conducted for the Karoun River, located in southwestern Iran. First, hydraulic characteristics of the river were simulated by implementing of MIKE11 software as well as water quality(variation of Pb concentration). Nash‑Sutcliffe coefficient were 0.91 and 0.91 for discharge calibration and validation, respectively. Second, 16 potential sampling points were proposed using modified Sanders' approach considering seasonality. For a better accuracy in the WQMN layout and a more efficient site selection of sampling points, a 1-km buffer is stretched along the river for determining non-point source pollution sources and prioritizing candidate points. This leads to considering different land uses in the study area, while GIS software has been employed. Seasonal changes and land use have a significant impact on the location of optimal sampling points. The presented framework can be used to improve water quality and support watershed protection efforts.
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Affiliation(s)
- Ali Asadi
- Faculty of Agricultural Sciences and Food Industries, Science and Research Branch of Islamic, Azad University, Tehran, Iran
| | | | | | - Hossein Alilou
- Aquatic Ecodynamics, UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, 6009, Australia
| | - Ebrahim Ahmadisharaf
- Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Tallahassee, FL, USA
| | - Edwin Kimutai Kanda
- Department of Civil and Structural Engineering, Masinde Masinde Muliro University of Science and Technology, Kakamega, Kenya
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22
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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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23
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Djalalinia S, Hejabi A, Bolhari J, Asadi A, Naseri H, Sadeghi MM, Mehrabadi MS, Dejman M, Eftekhari M, Atoofi MK. Situation Analysis for Promotion of Hot-Lines: An Experience from Iran. Int J Prev Med 2020; 11:183. [PMID: 33456739 PMCID: PMC7804869 DOI: 10.4103/ijpvm.ijpvm_175_19] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 01/23/2020] [Indexed: 11/24/2022] Open
Abstract
Background: The hot line services were developed in response to the perceived need for 24-hour help services in crises ranging from suicide to unwanted pregnancy. This study is aimed at analyzing the strengths, weaknesses, challenges, and suggestions of improving the performance of the help centers from the perspective of key stakeholders. Methods: We conducted a qualitative study to elicit the key informants' opinion regarding the performance of Iranian hot-lines. All the conversations were audio-recorded with the permission of the participants. To reach the saturation limit, the number of interviews was completed in the saturation of data. Data was gathered from 15 individual in-depth interviews. Collecting and analyses of data was based on content analysis through which simultaneously during texts open coding, main concepts were extracted and then in axial coding similar concepts were categorized. Results: According to the study results, there is no specific and independent system for assessing the hot- lines. One of the major weaknesses was the lack of standard protocols. Most participants believed that most of these guidelines came from the general principles of counseling and are not standard. As another point, the existence of referral services is one of the main problems of counseling lines. The most important suggestion from the majority of experts were the development of services and modification of their investments. Conclusions: The findings, in addition to providing the applied data for policy-making in the health system, will significantly contribute to the creation of scientific, technical, and skillful personnel in the community of researchers.
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Affiliation(s)
- Shirin Djalalinia
- Non-communicable Diseases Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran
| | - Ahmad Hejabi
- Mental, Social, and Addiction Office, Ministry of Health and Medical Education, Tehran, Iran.,Research Center for Addiction and Risky Behavior, Department of Psychiatric, Iran University of Medical Sciences, Tehran, Iran
| | - Jafar Bolhari
- Spiritual Health Research Center, Iran University of Medical Sciences, Tehran, Iran.,School of Behavioral Sciences and Mental Health, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Asadi
- Mental, Social, and Addiction Office, Ministry of Health and Medical Education, Tehran, Iran
| | - Hossein Naseri
- Deputy of Prevention, Welfare Organization of Iran, Tehran, Iran
| | | | - Mohammad Shams Mehrabadi
- Spiritual Health Research Center, Iran University of Medical Sciences, Tehran, Iran.,School of Behavioral Sciences and Mental Health, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran
| | | | - Monir Eftekhari
- Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran
| | - Mehrdad Kazemzadeh Atoofi
- Spiritual Health Research Center, Iran University of Medical Sciences, Tehran, Iran.,School of Behavioral Sciences and Mental Health, Tehran Psychiatric Institute, Iran University of Medical Sciences, Tehran, Iran
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Alizadeh A, Fakhari M, Safaei Z, Khodeai M, Repo E, Asadi A. Ionic liquid-decorated Fe3O4@SiO2 nanocomposite coated on talc sheets: An efficient adsorbent for methylene blue in aqueous solution. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108204] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Ramzy A, Asadi A, Kieffer TJ. Revisiting Proinsulin Processing: Evidence That Human β-Cells Process Proinsulin With Prohormone Convertase (PC) 1/3 but Not PC2. Diabetes 2020; 69:1451-1462. [PMID: 32291281 DOI: 10.2337/db19-0276] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/03/2020] [Indexed: 11/13/2022]
Abstract
Insulin is first produced in pancreatic β-cells as the precursor prohormone proinsulin. Defective proinsulin processing has been implicated in the pathogenesis of both type 1 and type 2 diabetes. Though there is substantial evidence that mouse β-cells process proinsulin using prohormone convertase 1/3 (PC1/3) and then prohormone convertase 2 (PC2), this finding has not been verified in human β-cells. Immunofluorescence with validated antibodies revealed that there was no detectable PC2 immunoreactivity in human β-cells and little PCSK2 mRNA by in situ hybridization. Similarly, rat β-cells were not immunoreactive for PC2. In all histological experiments, PC2 immunoreactivity in neighboring α-cells acted as a positive control. In donors with type 2 diabetes, β-cells had elevated PC2 immunoreactivity, suggesting that aberrant PC2 expression may contribute to impaired proinsulin processing in β-cells of patients with diabetes. To support histological findings using a biochemical approach, human islets were used for pulse-chase experiments. Despite inhibition of PC2 function by temperature blockade, brefeldin A, chloroquine, and multiple inhibitors that blocked production of mature glucagon from proglucagon, β-cells retained the ability to produce mature insulin. Conversely, suppression of PC1/3 blocked processing of proinsulin but not proglucagon. By demonstrating that healthy human β-cells process proinsulin by PC1/3 but not PC2, we suggest that there is a need to revise the long-standing theory of proinsulin processing.
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Affiliation(s)
- Adam Ramzy
- Laboratory of Molecular and Cellular Medicine, Department of Cellular and Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Asadi
- Laboratory of Molecular and Cellular Medicine, Department of Cellular and Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Timothy J Kieffer
- Laboratory of Molecular and Cellular Medicine, Department of Cellular and Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
- Department of Surgery, The University of British Columbia, Vancouver, British Columbia, Canada
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26
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Dabiri R, Mahmoudi T, Sabzikarian M, Asadi A, Farahani H, Nobakht H, Maleki I, Mansour-Ghanaei F, Derakshshan F, Zali MR. A 3'-untranslated region variant (rs2289046) of insulin receptor substrate 2 gene is associated with susceptibility to nonalcoholic fatty liver disease. Acta Gastroenterol Belg 2020; 83:271-276. [PMID: 32603046] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
PURPOSE Nonalcoholic fatty liver disease (NAFLD) is an increasing global health concern defined by excessive hepatic fat content in the absence of excessive alcohol consumption. Regarding the key role of insulin and insulin resistance in NAFLD, we investigated whether insulin receptor substrate 1 (IRS1) and insulin receptor substrate 2 (IRS2) gene variants were associated with NAFLD risk. METHODS In this case-control study, 305 subjects including 151 cases with biopsy-proven NAFLD and 154 controls were enrolled. All the subjects were genotyped for IRS1 (rs1801278) and IRS2 (rs2289046) gene variants using PCR-RFLP method. RESULTS Our findings showed that the IRS2 rs2289046 "GG+AG" genotype compared with "AA" genotype to be a marker of decreased NAFLD susceptibility and the difference remained significant even after adjustment for confounding factors including age, BMI, sex, smoking status, systolic blood pressure, and diastolic blood pressure (P=0.014; OR=0.50, 95%CI= 0.29-0.87). Furthermore, the IRS2 "G" allele was significantly underrepresented in the cases with NAFLD than controls (P=0.026 ; OR=0.62, 95%CI=0.41-0.94). However, no significant difference was found for IRS1 rs1801278 gene variant. CONCLUSIONS This study suggests, for the first time, that the IRS2 gene rs2289046 variant may play a role in NAFLD susceptibility. Nevertheless, this observation warrants further investigations in other populations.
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Affiliation(s)
- R Dabiri
- Internal Medicine Department, Semnan University of Medical Sciences, Semnan, Iran
| | - T Mahmoudi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M Sabzikarian
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - A Asadi
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - H Farahani
- Department of Physiology, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - H Nobakht
- Internal Medicine Department, Semnan University of Medical Sciences, Semnan, Iran
| | - I Maleki
- Gut and Liver Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - F Mansour-Ghanaei
- Division of Gastroenterology and Hepatology, Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences, Rasht, Iran
| | - F Derakshshan
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M R Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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27
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Tudurí E, Glavas MM, Asadi A, Baker RK, Ellis CE, Soukhatcheva G, Philit M, Huynh FK, Johnson JD, Bruce Verchere C, Kieffer TJ. AAV GCG-EGFP, a new tool to identify glucagon-secreting α-cells. Sci Rep 2019; 9:10829. [PMID: 31346189 PMCID: PMC6658537 DOI: 10.1038/s41598-019-46735-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 09/24/2018] [Accepted: 07/04/2019] [Indexed: 01/07/2023] Open
Abstract
The study of primary glucagon-secreting α-cells is hampered by their low abundance and scattered distribution in rodent pancreatic islets. We have designed a double-stranded adeno-associated virus containing a rat proglucagon promoter (700 bp) driving enhanced green fluorescent protein (AAV GCG-EGFP), to specifically identify α-cells. The administration of AAV GCG-EGFP by intraperitoneal or intraductal injection led to EGFP expression selectively in the α-cell population. AAV GCG-EGFP delivery to mice followed by islet isolation, dispersion and separation by FACS for EGFP resulted in an 86% pure population of α-cells. Furthermore, the administration of AAV GCG-EGFP at various doses to adult wild type mice did not significantly alter body weight, blood glucose, plasma insulin or glucagon levels, glucose tolerance or arginine tolerance. In vitro experiments in transgene positive α-cells demonstrated that EGFP expression did not alter the intracellular Ca2+ pattern in response to glucose or adrenaline. This approach may be useful for studying purified primary α-cells and for the in vivo delivery of other genes selectively to α-cells to further probe their function or to manipulate them for therapeutic purposes.
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Affiliation(s)
- Eva Tudurí
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain.,Instituto de Investigación, Desarrollo e innovación en Biotecnología Sanitaria de Elche (IDiBE), Elche, Spain
| | - Maria M Glavas
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Asadi
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Robert K Baker
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cara E Ellis
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Galina Soukhatcheva
- Department of Pathology and Laboratory Medicine, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Marjolaine Philit
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Frank K Huynh
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Biological Sciences, San Jose State University, San Jose, CA, USA
| | - James D Johnson
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - C Bruce Verchere
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Timothy J Kieffer
- Department of Cellular and Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada. .,Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.
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Qutbi M, Asadi A, Asli IN. Coexisting Sources of False-Positive Reflux on a Direct Radionuclide Cystography Scan. J Nucl Med Technol 2019; 47:177-178. [PMID: 30770475 DOI: 10.2967/jnmt.118.222075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 12/17/2018] [Indexed: 11/16/2022] Open
Abstract
Direct radionuclide cystography is currently a popular method for evaluation of vesicoureteral reflux, despite its pitfalls and drawbacks in producing false-positive results. In this article, we present a case with 2 sources of false-positive reflux on a direct radionuclide cystography scan.
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Affiliation(s)
- Mohsen Qutbi
- Department of Nuclear Medicine, Taleghani Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Asadi
- Department of Nuclear Medicine, Taleghani Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Isa Neshandar Asli
- Department of Nuclear Medicine, Taleghani Educational Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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29
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Nikolaidis P, Asadi A, Santos EJ, Calleja-González J, Padulo J, Chtourou H, Zemkova E. Relationship of body mass status with running and jumping performances in young basketball players. Muscles Ligaments Tendons J 2019. [DOI: 10.32098/mltj.03.2015.08] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P.T. Nikolaidis
- Department of Orthopaedics and Trauma Surgery, Calderdale and Huddersfield Foundation NHS Trust, Huddersfield, UK
| | - A. Asadi
- Department of Physical Education and Sport Sciences, Payame Noor University, Tehran, Iran
| | | | | | - J. Padulo
- University eCampus, Novedrate, Italy
| | - H. Chtourou
- Tunisian Research Laboratory “Sport Performance Optimisation”, National Center of Medicine and Science in Sports, Tunis, Tunisia
| | - E. Zemkova
- Faculty of Physical Education and Sports, Comenius University, Bratislava, Slovakia
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30
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Asadi A, Abusrea MR, Arakawa K, Colton J, Kalaitzidou K. A comparison of CFRP composite laminated joints fabricated with vacuum assisted resin transfer molding. EXPRESS POLYM LETT 2018. [DOI: 10.3144/expresspolymlett.2018.67] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Asadi A, Verma A, Yang K, Mejabi B. Wastewater treatment aeration process optimization: A data mining approach. J Environ Manage 2017; 203:630-639. [PMID: 27460213 DOI: 10.1016/j.jenvman.2016.07.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 04/26/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 06/06/2023]
Abstract
Being water quality oriented, large-scale industries such as wastewater treatment plants tend to overlook potential savings in energy consumption. Wastewater treatment process includes energy intensive equipment such as pumps and blowers to move and treat wastewater. Presently, a data-driven approach has been applied for aeration process modeling and optimization of one large scale wastewater in Midwest. More specifically, aeration process optimization is carried out with an aim to minimize energy usage without sacrificing water quality. Models developed by data mining algorithms are useful in developing a clear and concise relationship among input and output variables. Results indicate that a great deal of saving in energy can be made while keeping the water quality within limit. Limitation of the work is also discussed.
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Affiliation(s)
- Ali Asadi
- Department of Industrial and Systems Engineering, Wayne State University, Detroit, MI 48202, United States
| | - Anoop Verma
- Department of Industrial and Systems Engineering, Wayne State University, Detroit, MI 48202, United States.
| | - Kai Yang
- Department of Industrial and Systems Engineering, Wayne State University, Detroit, MI 48202, United States
| | - Ben Mejabi
- Department of Industrial and Systems Engineering, Wayne State University, Detroit, MI 48202, United States
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32
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Noorbala AA, Bagheri Yazdi SA, Faghihzadeh S, Kamali K, Faghihzadeh E, Hajebi A, Akhondzadeh S, Ghazizadeh Hashemi F, Asadi A, Niknejad M. A Survey on Mental Health Status of Adult Population Aged 15 and above in the Province of Alborz, Iran. Arch Iran Med 2017; 20:S7-S10. [PMID: 29481117] [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] [Subscribe] [Scholar Register] [Accepted: 10/18/2017] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The main objective of this study was to determine the mental health status of population aged 15 and over in the province of Alborz in the year 2015. METHODS The statistical population of this cross-sectional field survey consisted of residents of urban and rural areas of Alborz province in Iran. An estimated sample size of 1200 people was chosen using systematic random cluster sampling. Access was provided by the contribution of Geographical Post Office of Karaj, Mohammad Abad, and Nazar Abad cities. The General Health Questionnaire-28 (GHQ-28) was used as the screening tool for mental disorders. The analysis of data in the current study was carried out using SPSS-18 software. RESULTS Using GHQ traditional scoring method, the results showed that 19% of individuals (23.8% of females and 14.1% males) were suspected for mental disorders. The prevalence of suspected cases of mental disorders was 21.3% in urban and 13.8% in rural areas. It also showed that somatization and anxiety symptoms were more prevalent than social dysfunction and depression symptoms, and were more common in women than men. The results of this research also showed that the prevalence of suspected cases of mental disorders increased with aging. Such disorders were more common in females, age groups of 65 and above, people living in urban areas, divorced and widowed, illiterate and unemployed individuals compared with other groups. CONCLUSION The results of this study showed that about one fifth of people in the province are suspected for mental disorders. Therefore, it is mandatory for the provincial public health authorities to take the needed steps to ensure that necessary requirements encompassing prevention and promotion of mental health are implemented.
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Affiliation(s)
- Ahmad Ali Noorbala
- Psychosomatic Medicine Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Soghrat Faghihzadeh
- Department of Biostatistics and Epidemiology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Koorosh Kamali
- Department of Public Health, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Elham Faghihzadeh
- Department of Biostatistics, Paramedical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Hajebi
- Research Center for Addiction and Risky Behaviors (ReCARB), Psychiatric Department, Iran University of Medical Sciences, Tehran, Iran
| | - Shahin Akhondzadeh
- Psychiatric Research Center, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ali Asadi
- Department of Mental Health, Ministry of Health and Medical Education of Iran, Tehran, Iran
| | - Majid Niknejad
- Responsible Manager of Psychosocial Health and Addiction Office, Health Center of Alborz University of Medical Sciences, Karaj, Iran
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Noorbala AA, Bagheri Yazdi SA, Faghihzadeh S, Kamali K, Faghihzadeh E, Hajebi A, Akhondzadeh S, Esalatmanesh S, Bagheri Yazdi H, Abbasinejad M, Asadi A. Trends of Mental Health Status in Iranian Population Aged 15 and above between 1999 and 2015. Arch Iran Med 2017; 20:S2-S6. [PMID: 29481116] [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] [Subscribe] [Scholar Register] [Accepted: 10/18/2017] [Indexed: 06/08/2023]
Abstract
INTRODUCTION The main objective of this study was to compare the results of mental health surveys on adult populations of all provinces in Iran, between 1999 and 2015. METHODS This study was an overview of two cross-sectional, descriptive studies that were performed in 1999 and 2015. The study population of these two studies consisted of urban and rural residents of all provinces in Iran. Samples were recruited by systematic random cluster sampling. In both studies, the General Health Questionnaire (GHQ-28) was used to assess mental health status of respondents. Trained psychologists completed questionnaires, and data were analyzed using SPSS software-18. RESULTS The results showed that in the survey of 1999, 21% of participants suffered from mental disorders (25.9% of females and 14.9% of males). In the survey of 2015, 23.4% of samples were suspected of having mental disorders (27.6% of females and 19.3% of males). The prevalence of mental disorders increased from 1999 to 2014 by about 1.12 fold (1.06 fold in females and 1.3 fold in males). In the survey of 1999, rural residents were more at risk of mental disorders, while in the survey of 2015, urban residents were more prone to mental disorders. In both studies, the risk of suspicion for mental disorders increased with increasing age, and was higher in people aged 65 and above, as well as widowed, divorced and illiterate individuals. CONCLUSION The results of this study showed an increase in suspected cases of mental disorders in Iran from 1999 to 2015. Therefore, it is vital for policymakers and health officials to take action in order to improve and maintain mental health status of the people who are at risk in the country.
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Affiliation(s)
- Ahmad Ali Noorbala
- Psychosomatic Medicine Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Soghrat Faghihzadeh
- Department of Biostatistics and Epidemiology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Koorosh Kamali
- Department of Public Health, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Elham Faghihzadeh
- Department of Biostatistics, Paramedical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Hajebi
- Research Center for Addiction and Risky Behaviors (ReCARB), Psychiatric Department, Iran University of Medical Sciences, Tehran, Iran
| | - Shahin Akhondzadeh
- Psychiatric Research Center, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sophia Esalatmanesh
- Department of Research, Ministry of Health and Medical Education of Iran, Tehran, Iran
| | - HanihalSadat Bagheri Yazdi
- Department of Culture and Student Affairs, Ministry of Health and Medical Education of Iran, Tehran, Iran
| | - Maryam Abbasinejad
- Department for Mental Health and Substance Abuse, Ministry of Health and Medical Education of Iran
| | - Ali Asadi
- Department of Mental Health, Ministry of Health and Medical Education of Iran, Tehran, Iran
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Hui Q, Asadi A, Park YJ, Kieffer TJ, Ao Z, Warnock GL, Marzban L. Amyloid formation disrupts the balance between interleukin-1β and interleukin-1 receptor antagonist in human islets. Mol Metab 2017; 6:833-844. [PMID: 28752047 PMCID: PMC5518725 DOI: 10.1016/j.molmet.2017.05.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 12/28/2022] Open
Abstract
Objectives β-cell dysfunction and apoptosis associated with islet inflammation play a key role in the pathogenesis of type 2 diabetes (T2D). Growing evidence suggests that islet amyloid, formed by aggregation of human islet amyloid polypeptide (hIAPP), contributes to islet inflammation and β-cell death in T2D. We recently showed the role of interleukin-1β (IL-1β)/Fas/caspase-8 apoptotic pathway in amyloid-induced β-cell death. In this study, we used human islets in culture as an ex vivo model of amyloid formation to: (1) investigate the effects of amyloid on islet levels of the natural IL-1 receptor antagonist (IL-1Ra); (2) examine if modulating the IL-1β/IL-1Ra balance can prevent amyloid-induced β-cell Fas upregulation and apoptosis. Methods Isolated human islets (n = 10 donors) were cultured in elevated glucose (to form amyloid) with or without a neutralizing human IL-1β antibody for up to 7 days. Parallel studies were performed with human islets in which amyloid formation was prevented by adeno-siRNA-mediated suppression of hIAPP expression (as control). β-cell levels of IL-1Ra, Fas, apoptosis as well as islet function, insulin- and amyloid-positive areas, and IL-1Ra release were assessed. Results Progressive amyloid formation in human islets during culture was associated with alterations in IL-1Ra. Islet IL-1Ra levels were higher at early stages but were markedly reduced at later stages of amyloid formation. Furthermore, IL-1Ra release from human islets was reduced during 7-day culture in a time-dependent manner. These changes in IL-1Ra production and release from human islets during amyloid formation adversely correlated with islet IL-1β levels, β-cell Fas expression and apoptosis. Treatment with IL-1β neutralizing antibody markedly reduced amyloid-induced β-cell Fas expression and apoptosis, thereby improving islet β-cell survival and function during culture. Conclusions These data suggest that amyloid formation impairs the balance between IL-1β and IL-1Ra in islets by increasing IL-1β production and reducing IL-1Ra levels thereby promoting β-cell dysfunction and death. Restoring the IL-1β/IL-1Ra ratio may provide an effective strategy to protect islet β-cells from amyloid toxicity in T2D. Endogenous amyloid formation alters IL-1Ra levels in human islet β-cells. Amyloid impairs islet IL-1β/IL-1Ra balance by promoting IL-1β and reducing IL-1Ra. Restoring IL-1β/IL-1Ra ratio by blocking IL-1β protects human islets against amyloid.
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Key Words
- Amylin
- BSA, bovine serum albumin
- ER, endoplasmic reticulum
- FBS, fetal bovine serum
- IL-1R1, IL-1 receptor type I
- IL-1Ra, IL-1 receptor antagonist
- IL-1β, interleukin-1β
- Interleukin-1 receptor antagonist
- Interleukin-1β
- Islet amyloid
- Islet amyloid polypeptide
- Islet inflammation
- KRB, Krebs–Ringer bicarbonate
- PFA, paraformaldehyde
- T2D, type 2 diabetes
- Type 2 diabetes
- hIAPP, human islet amyloid polypeptide
- nIL1β, neutralizing IL-1β
- rIAPP, rat islet amyloid polypeptide
- β-cell apoptosis
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Affiliation(s)
- Queenie Hui
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Ali Asadi
- Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Yoo Jin Park
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Timothy J Kieffer
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Ziliang Ao
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Garth L Warnock
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Lucy Marzban
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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Park YJ, Warnock GL, Ao Z, Safikhan N, Meloche M, Asadi A, Kieffer TJ, Marzban L. Dual role of interleukin-1β in islet amyloid formation and its β-cell toxicity: Implications for type 2 diabetes and islet transplantation. Diabetes Obes Metab 2017; 19:682-694. [PMID: 28058779 DOI: 10.1111/dom.12873] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/21/2016] [Accepted: 01/03/2017] [Indexed: 01/18/2023]
Abstract
AIMS Islet amyloid, formed by aggregation of human islet amyloid polypeptide (hIAPP), contributes to β-cell failure in type 2 diabetes, cultured and transplanted islets. We previously showed that biosynthetic hIAPP aggregates induce β-cell Fas upregulation and activation of the Fas apoptotic pathway. We used cultured human and hIAPP-expressing mouse islets to investigate: (1) the role of interleukin-1β (IL-1β) in amyloid-induced Fas upregulation; and (2) the effects of IL-1β-induced β-cell dysfunction on pro-islet amyloid polypeptide (proIAPP) processing and amyloid formation. RESEARCH DESIGN AND METHODS Human and h IAPP -expressing mouse islets were cultured to form amyloid without or with the IL-1 receptor antagonist (IL-1Ra) anakinra, in the presence or absence of recombinant IL-1β. Human islets in which amyloid formation was prevented (amyloid inhibitor or Ad-prohIAPP-siRNA) were cultured similarly. β-cell function, apoptosis, Fas expression, caspase-8 activation, islet IL-1β, β-cell area, β-/α-cell ratio, amyloid formation, and (pro)IAPP forms were assessed. RESULTS hIAPP aggregates were found to increase IL-1β levels in cultured human islets that correlated with β-cell Fas upregulation, caspase-8 activation and apoptosis, all of which were reduced by IL-1Ra treatment or prevention of amyloid formation. Moreover, IL-1Ra improved culture-induced β-cell dysfunction and restored impaired proIAPP processing, leading to lower amyloid formation. IL-1β treatment potentiated impaired proIAPP processing and increased amyloid formation in cultured human and h IAPP -expressing mouse islets, which were prevented by IL-1Ra. CONCLUSIONS IL-1β plays a dual role by: (1) mediating amyloid-induced Fas upregulation and β-cell apoptosis; (2) inducing impaired proIAPP processing thereby potentiating amyloid formation. Blocking IL-1β may provide a new strategy to preserve β cells in conditions associated with islet amyloid formation.
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Affiliation(s)
- Yoo Jin Park
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Garth L Warnock
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ziliang Ao
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nooshin Safikhan
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mark Meloche
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Asadi
- Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Timothy J Kieffer
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lucy Marzban
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Asadi A, Barber-Chamoux N, Motreff P, Lusson J. Factors predictive of survival after out-of-hospital cardiac arrest. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30353-1] [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: 11/28/2022]
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Asadi A, Arhlade F, Habbal R. Prognostic significance of heart rate in patients with chronic heart failure with reduced ejection fraction. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30126-x] [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: 10/19/2022]
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Zhang D, Wang F, Lal N, Chiu APL, Wan A, Jia J, Bierende D, Flibotte S, Sinha S, Asadi A, Hu X, Taghizadeh F, Pulinilkunnil T, Nislow C, Vlodavsky I, Johnson JD, Kieffer TJ, Hussein B, Rodrigues B. Heparanase Overexpression Induces Glucagon Resistance and Protects Animals From Chemically Induced Diabetes. Diabetes 2017; 66:45-57. [PMID: 27999107 DOI: 10.2337/db16-0761] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 06/22/2016] [Accepted: 10/01/2016] [Indexed: 11/13/2022]
Abstract
Heparanase, a protein with enzymatic and nonenzymatic properties, contributes toward disease progression and prevention. In the current study, a fortuitous observation in transgenic mice globally overexpressing heparanase (hep-tg) was the discovery of improved glucose homeostasis. We examined the mechanisms that contribute toward this improved glucose metabolism. Heparanase overexpression was associated with enhanced glucose-stimulated insulin secretion and hyperglucagonemia, in addition to changes in islet composition and structure. Strikingly, the pancreatic islet transcriptome was greatly altered in hep-tg mice, with >2,000 genes differentially expressed versus control. The upregulated genes were enriched for diverse functions including cell death regulation, extracellular matrix component synthesis, and pancreatic hormone production. The downregulated genes were tightly linked to regulation of the cell cycle. In response to multiple low-dose streptozotocin (STZ), hep-tg animals developed less severe hyperglycemia compared with wild-type, an effect likely related to their β-cells being more functionally efficient. In animals given a single high dose of STZ causing severe and rapid development of hyperglycemia related to the catastrophic loss of insulin, hep-tg mice continued to have significantly lower blood glucose. In these mice, protective pathways were uncovered for managing hyperglycemia and include augmentation of fibroblast growth factor 21 and glucagon-like peptide 1. This study uncovers the opportunity to use properties of heparanase in management of diabetes.
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Affiliation(s)
- Dahai Zhang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Fulong Wang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Nathaniel Lal
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Amy Pei-Ling Chiu
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrea Wan
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jocelyn Jia
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Denise Bierende
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephane Flibotte
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Sunita Sinha
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Asadi
- Department of Cellular & Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Xiaoke Hu
- Department of Cellular & Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Farnaz Taghizadeh
- Department of Cellular & Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas Pulinilkunnil
- Faculty of Medicine, Department of Biochemistry and Molecular Biology, Dalhousie University, Saint John, New Brunswick, Canada
| | - Corey Nislow
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Israel Vlodavsky
- Rappaport Faculty of Medicine, Cancer and Vascular Biology Research Center, Technion, Haifa, Israel
| | - James D Johnson
- Department of Cellular & Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Timothy J Kieffer
- Department of Cellular & Physiological Sciences, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Bahira Hussein
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Brian Rodrigues
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
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Balighi K, Daneshpazhooh M, Nasimi M, Loloee S, Asadi A, Azizpour A. Evaluation of Hepatitis B Vaccination among Lichen Planus Patients. Mymensingh Med J 2016; 25:550-554. [PMID: 27612905] [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: 06/06/2023]
Abstract
Lichen planus (LP) is an idiopathic chronic inflammatory mucocutaneous disease. Many reports in the literature have described hepatitis B vaccine as a predisposing factor for LP. This study was performed to determine the rate of previous vaccination against hepatitis B in LP patients. This was a cross sectional study on LP patients. Diagnosis of LP was confirmed by histological examination. Data were gathered by dermatology residents based on a checklist designed to guide their interview. Blood samples were tested for HBsAB titer, HBsAg, HCV Ab and liver function tests. One hundred & twenty four (124) patients entered the study. Females were 2.72 times more affected. The mean age of patients was 45.63 years (age range; 18-88). Forty-four (35.5%) patients had been vaccinated against hepatitis B. Lichen planus during the first six months of vaccination occurred in only one patient. Our findings bring into question the causative role of HBV vaccine in LP incidence in our population.
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Affiliation(s)
- K Balighi
- Dr Kamran Balighi, Associate professor of dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran; E-mail:
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Ardalan A, Sohrabizadeh S, Latifi MF, Rajaei MH, Asadi A, Mirbeigi S, Rouhi N, Yousefi H. Responding to physical and psychological health impacts of disasters: case study of the Iranian disaster rehabilitation plan. East Mediterr Health J 2016; 22:212-8. [PMID: 27334078 DOI: 10.26719/2016.22.3.212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 02/07/2016] [Indexed: 11/09/2022]
Abstract
This paper describes the process of developing a national pre-disaster plan for physical health and psychological rehabilitation of disaster-stricken communities. Data gathered from a literature review and expert panel discussions informed the process of drawing up unified definitions of physical and psychological health rehabilitation, carrying out stakeholder and STEEP-V analyses, and assigning the responsible organization and the collaborative organizations for each task. The Ministry of Health and the Welfare Organization were selected as the two responsible organizations. Integrated management at all levels, and sharing information, education and funding, were identified as ways to improve stakeholders' participation and collaboration. A system is needed for evaluating the implementation of the disaster rehabilitation plan, using valid and reliable indicators.
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Affiliation(s)
- A Ardalan
- School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran; National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran; Harvard Humanitarian Initiative, Harvard University, Cambridge, Massachusetts, United States of America
| | - S Sohrabizadeh
- School of Health, Safety and Environment, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - M F Latifi
- National Disaster Management Organization, Tehran, Islamic Republic of Iran
| | - M H Rajaei
- National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - A Asadi
- Department of Mental Health, Ministry of Health, Tehran, Islamic Republic of Iran
| | - S Mirbeigi
- Welfare Organization, Tehran, Islamic Republic of Iran
| | - N Rouhi
- School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - H Yousefi
- National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
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Abstract
Worldwide efforts are underway to replace or repair lost or dysfunctional pancreatic β-cells to cure diabetes. However, it is unclear what the final product of these efforts should be, as β-cells are thought to be heterogeneous. To enable the analysis of β-cell heterogeneity in an unbiased and quantitative way, we developed model-free and model-based statistical clustering approaches, and created new software called TraceCluster. Using an example data set, we illustrate the utility of these approaches by clustering dynamic intracellular Ca(2+) responses to high glucose in ∼300 simultaneously imaged single islet cells. Using feature extraction from the Ca(2+) traces on this reference data set, we identified 2 distinct populations of cells with β-like responses to glucose. To the best of our knowledge, this report represents the first unbiased cluster-based analysis of human β-cell functional heterogeneity of simultaneous recordings. We hope that the approaches and tools described here will be helpful for those studying heterogeneity in primary islet cells, as well as excitable cells derived from embryonic stem cells or induced pluripotent cells.
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Affiliation(s)
- Quin F Wills
- a Wellcome Trust Center for Human Genetics, University of Oxford , Oxford , United Kingdom
- b Weatherall Institute of Molecular Medicine, University of Oxford , Oxford , United Kingdom
| | - Tobias Boothe
- c Department of Cellular and Physiological Sciences , Life Sciences Center, University of British Columbia , Vancouver , Canada
| | - Ali Asadi
- c Department of Cellular and Physiological Sciences , Life Sciences Center, University of British Columbia , Vancouver , Canada
| | - Ziliang Ao
- d Department of Surgery , University of British Columbia , Vancouver , Canada
| | - Garth L Warnock
- d Department of Surgery , University of British Columbia , Vancouver , Canada
| | - Timothy J Kieffer
- c Department of Cellular and Physiological Sciences , Life Sciences Center, University of British Columbia , Vancouver , Canada
- d Department of Surgery , University of British Columbia , Vancouver , Canada
| | - James D Johnson
- c Department of Cellular and Physiological Sciences , Life Sciences Center, University of British Columbia , Vancouver , Canada
- d Department of Surgery , University of British Columbia , Vancouver , Canada
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Asadi A, Zinatizadeh AA, Van Loosdrecht M, Younesi H. Nitrogen removal by ANAMMOX and simultaneous nitrification–denitrification (SND) processes in a novel single airlift bioreactor. RSC Adv 2016. [DOI: 10.1039/c6ra11174b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this research was to assess anaerobic ammonium oxidation and simultaneous nitrification–denitrification processes in a novel continuous feed and intermittent discharge airlift bioreactor which provides anaerobic, anoxic and aerobic zones by physical separation.
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Affiliation(s)
- A. Asadi
- Environmental Research Center
- Department of Applied Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
| | - A. A. Zinatizadeh
- Environmental Research Center
- Department of Applied Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
| | - M. Van Loosdrecht
- Department of Biotechnology
- Delft University of Technology
- 2628 BC Delft
- The Netherlands
| | - H. Younesi
- Department of Environmental Science
- Faculty of Natural Resources and Marine Science
- Tarbiat Modares University
- Noor
- Iran
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Asadi A, Miller M, Moon RJ, Kalaitzidou K. Improving the interfacial and mechanical properties of short glass fiber/epoxy composites by coating the glass fibers with cellulose nanocrystals. EXPRESS POLYM LETT 2016. [DOI: 10.3144/expresspolymlett.2016.54] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Molecular dynamics simulations and a particle-level mathematical model were used to study the state of charge dependent mechanical and diffusion properties of lithium manganese oxide as a cathode material in Li-ion batteries during electrochemical cycling.
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Affiliation(s)
- Ali Asadi
- Department of Chemical Engineering
- College of Engineering
- University of Isfahan
- Isfahan
- Iran
| | - Seyed Foad Aghamiri
- Department of Chemical Engineering
- College of Engineering
- University of Isfahan
- Isfahan
- Iran
| | - Mohammad Reza Talaie
- Department of Chemical Engineering
- College of Engineering
- University of Isfahan
- Isfahan
- Iran
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Dehghani M, Heibati B, Asadi A, Tyagi I, Agarwal S, Gupta V. Reduction of noxious Cr(VI) ion to Cr(III) ion in aqueous solutions using H2O2 and UV/H2O2 systems. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.10.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rezaee S, Zinatizadeh A, Asadi A. Comparative study on effect of mechanical mixing and ultrasound on the performance of a single up-flow anaerobic/aerobic/anoxic bioreactor removing CNP from milk processing wastewater. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.06.012] [Citation(s) in RCA: 8] [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: 10/23/2022]
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Asadi A, Bruin JE, Kieffer TJ. Characterization of Antibodies to Products of Proinsulin Processing Using Immunofluorescence Staining of Pancreas in Multiple Species. J Histochem Cytochem 2015. [PMID: 26216140 DOI: 10.1369/0022155415576541] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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: 12/24/2022] Open
Abstract
The efficient processing of proinsulin into mature insulin and C-peptide is often compromised under conditions of beta cell stress, including diabetes. Impaired proinsulin processing has been challenging to examine by immunofluorescence staining in pancreas tissue because the characterization of antibodies specific for proinsulin, proinsulin intermediates, processed insulin and C-peptide has been limited. This study aimed to identify and characterize antibodies that can be used to detect products of proinsulin processing by immunofluorescence staining in pancreata from different species (mice, rats, dog, pig and human). We took advantage of several knockout mouse lines that lack either an enzyme involved in proinsulin processing or an insulin gene. Briefly, we report antibodies that are specific for several proinsulin processing products, including: a) insulin or proinsulin that has been appropriately processed at the B-C junction; b) proinsulin with a non-processed B-C junction; c) proinsulin with a non-processed A-C junction; d) rodent-specific C-peptide 1; e) rodent-specific C-peptide 2; and f) human-specific C-peptide or proinsulin. In addition, we also describe two 'pan-insulin' antibodies that react with all forms of insulin and proinsulin intermediates, regardless of the species. These antibodies are valuable tools for studying proinsulin processing by immunofluorescence staining and distinguishing between proinsulin products in different species.
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Affiliation(s)
- Ali Asadi
- Laboratory of Molecular and Cellular Medicine, Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada (AA, JEB, TJK)
| | - Jennifer E Bruin
- Laboratory of Molecular and Cellular Medicine, Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada (AA, JEB, TJK)
| | - Timothy J Kieffer
- Laboratory of Molecular and Cellular Medicine, Department of Cellular & Physiological Sciences, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada (AA, JEB, TJK),Department of Surgery, University of British Columbia, Vancouver, BC, Canada (TJK)
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Rezaee S, Zinatizadeh AAL, Asadi A. High rate CNP removal from a milk processing wastewater in a single ultrasound augmented up-flow anaerobic/aerobic/anoxic bioreactor. Ultrason Sonochem 2015; 23:289-301. [PMID: 25457518 DOI: 10.1016/j.ultsonch.2014.10.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 09/22/2014] [Accepted: 10/17/2014] [Indexed: 06/04/2023]
Abstract
Simultaneous removal of carbon, nitrogen and phosphorus (CNP) in a single bioreactor is of high significance in terms of reactor volume and energy consumption. Therefore, in this study, an innovative up-flow anaerobic/aerobic/anoxic bioreactor (UAAASB) augmented by ultrasound was developed as a high rate single bioreactor for the simultaneous removal of nutrients from a milk processing wastewater. The ultrasonic irradiation used in this work was in the range of high frequency (1.7 MHz). The central composite design (CCD) and response surface methodology (RSM) were applied to design the experimental conditions, model obtained data, and optimize the process. The effects of three independent variables, i.e. hydraulic retention time (HRT), aeration mode and mixed liquor suspended solid (MLSS) concentration on 10 process responses were investigated. The results prove that the ultrasonic irradiation has a positive effect on the sludge settling velocity and effluent turbidity. The optimum conditions were determined as 12-15 h, 4000-5000 mg/l and 1.5-2 for HRT, MLSS concentration and aeration mode, respectively, based on removal efficiency of sCOD ⩾ 90%, TN and TP ⩾ 50%.
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Affiliation(s)
- S Rezaee
- Water and Wastewater Research Center (WWRC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - A A L Zinatizadeh
- Water and Wastewater Research Center (WWRC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.
| | - A Asadi
- Water and Wastewater Research Center (WWRC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Yarahmadi M, Askari G, Kargarfard M, Ghiasvand R, Hoseini M, Mohamadi H, Asadi A. The effect of anthocyanin supplementation on body composition, exercise performance and muscle damage indices in athletes. Int J Prev Med 2014; 5:1594-600. [PMID: 25709796 PMCID: PMC4336991] [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] [Received: 06/29/2013] [Accepted: 09/07/2014] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND Flavonoids consider as a large group of plant metabolites that 6,000 types of them have been identified till now. In some studies, it has been shown that they can increase aerobic performance and maximal oxygen consumption (VO2 max). The aim of this study was to evaluate the effect of anthocyanin (as one of the most important kind of flavonoids) supplementation on body composition, exercise performance and muscle damage indices in athletes. METHODS This double-blinded clinical trial involved 54 female and male athletes at Isfahan University of Medical Sciences with athletic history of at least 3 years. Body composition, exercise performance, creatine kinase, and lactate dehydrogenase were assessed. Individuals were selected by simple sampling method, they divided into two groups using permuted block randomization method. First group received 100 mg anthocyanin pills, and the second group received 100 mg placebo pills, daily for 6 weeks. Participants asked to continue their routine diet and physical activity during the study period, and they were followed through phone calls or text messages. RESULTS Soft lean mass, total body water and percent body fat were not changed significantly in the anthocyanin group after intervention but VO2 max increased significantly in the anthocyanin group (48.65 ± 4.73 vs. 52.62 ± 5.04) (P ≤ 0.0001), also a significant difference was observed between two studied groups (52.62 ± 5.04 for intervention group vs. 49.61 ± 5.33 for placebo) (P = 0.003). CONCLUSIONS Our findings suggested that the supplementation with anthocyanin in athletes may improve some indices of performance such as VO2 max.
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Affiliation(s)
- Masoome Yarahmadi
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholamreza Askari
- Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran,Correspondence to: Dr. Gholamreza Askari, Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran. E-mail:
| | - Mehdi Kargarfard
- Department of Sport Physiology, School of Physical Education and Sport Sciences, University of Isfahan, Isfahan, Iran
| | - Reza Ghiasvand
- Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Hoseini
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hajar Mohamadi
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Asadi
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Hogh KLN, Craig MN, Uy CE, Nygren H, Asadi A, Speck M, Fraser JD, Rudecki AP, Baker RK, Orešič M, Gray SL. Overexpression of PPARγ specifically in pancreatic β-cells exacerbates obesity-induced glucose intolerance, reduces β-cell mass, and alters islet lipid metabolism in male mice. Endocrinology 2014; 155:3843-52. [PMID: 25051434 DOI: 10.1210/en.2014-1076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The contribution of peroxisomal proliferator-activated receptor (PPAR)-γ agonism in pancreatic β-cells to the antidiabetic actions of thiazolidinediones has not been clearly elucidated. Genetic models of pancreatic β-cell PPARγ ablation have revealed a potential role for PPARγ in β-cell expansion in obesity but a limited role in normal β-cell physiology. Here we overexpressed PPARγ1 or PPARγ2 specifically in pancreatic β-cells of mice subjected to high-fat feeding using an associated adenovirus (β-PPARγ1-HFD and β-PPARγ2-HFD mice). We show β-cell-specific PPARγ1 or PPARγ2 overexpression in diet-induced obese mice exacerbated obesity-induced glucose intolerance with decreased β-cell mass, increased islet cell apoptosis, and decreased plasma insulin compared with obese control mice (β-eGFP-HFD mice). Analysis of islet lipid composition in β-PPARγ2-HFD mice revealed no significant changes in islet triglyceride content and an increase in only one of eight ceramide species measured. Interestingly β-PPARγ2-HFD islets had significantly lower levels of lysophosphatidylcholines, lipid species shown to enhance insulin secretion in β-cells. Gene expression profiling revealed increased expression of uncoupling protein 2 and genes involved in fatty acid transport and β-oxidation. In summary, transgenic overexpression of PPARγ in β-cells in diet-induced obesity negatively impacts whole-animal carbohydrate metabolism associated with altered islet lipid content, increased expression of β-oxidative genes, and reduced β-cell mass.
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Affiliation(s)
- K-Lynn N Hogh
- Northern Medical Program (K.N.H., M.N.C., C.E.U., J.D.F., A.P.R., S.L.G.), University of Northern British Columbia, Prince George, British Columbia, Canada V2N 4Z9; Department of Cellular and Physiological Sciences and Faculty of Medicine (A.A., R.K.B.), University of British Columbia, Vancouver, British Columbia, Canada V5Z 4H4; VTT Technical Research Centre of Finland (H.N., M.O.), Espoo FI-02044, Finland; Steno Diabetes Center A/S (H.N., M.O.), Gentofte, Denmark; and Child and Family Research Institute (M.S.), Vancouver, British Columbia, Canada V6T 1Z1
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