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Internal absorbed dose calculation in body organs due to injection of Rhenium-188 labeled to Mu-9 antibody. Appl Radiat Isot 2024; 207:111235. [PMID: 38430824 DOI: 10.1016/j.apradiso.2024.111235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 03/05/2024]
Abstract
The use of radiopharmaceuticals has gained a special place in the diagnosis and treatment of cancers and evaluation of the function of different organs of the body. In this study, the absorbed dose distribution of organs after injection of 188Re-Mu-9 has been investigated using MIRD method and MCNP-4C simulation code. The 188Re-Mu-9 labeled was injected the mouse body and the amount of 188Re-labeled accumulation was evaluated after 1, 4 and 2 4 h. Having a map of the distribution of radiopharmaceutical activity in the animal body, it is possible to convert it into a human model to obtain the internal dose received by 188Re-Mu-9 injection using the MIRD calculation method and the MCNP simulation code. According to the results of the study, the animal/human model can be acceptable method for dose estimation of antibody-based radiopharmaceuticals.
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Evaluation of dietary food intakes and anthropometric measures in middle-aged men with aggressive symptoms. BMC Nutr 2023; 9:75. [PMID: 37365666 DOI: 10.1186/s40795-023-00730-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND Aggression is one of the most prevalent behavioral disorders in men. OBJECTIVE This study aimed to assess the possible association between dietary intake of food groups and aggression in middle-aged married men. METHODS This case-control study included 336 participants (168 men with aggressive behaviors and 168 healthy controls) aged 35-55 years. Demographic information was collected using a socio-demographic questionnaire. A food frequency questionnaire was used to investigate the diet group intake last year. Based on the normality of the data distribution, Independent t-tests and Mann-Whitney tests were used to compare quantitative variables between the two groups. Categorical variables were compared between cases and controls using the Chi-squared test. Logistic regression analysis was used to examine the possible association between food intake and aggression. RESULTS Compared to controls, aggressive men had significantly higher mean weight, height, and waist circumference (WC), p = 0.007, p = 0.001, and p = 0.043, respectively. After adjusting WC, energy intake, and educational level, in Model 1, intake of milk, cheese, poultry, red meat, legumes, egg, fruits, and vegetables had a significant protective role on the occurrence of aggression, (Odd Ratio (OR) = 0.36; 95% (Confidence Interval (CI) = 0.204, 0.670; P = 0.001), (OR = 0.440; 95% CI = 0.284, 0.781; P = 0.005), (OR = 0.621; 95% CI = 0.284, 0.781; P = 0.046), (OR = 0.358; 95% CI = 0.198, 0.647; P = 0.001), (OR = 0.434; 95% CI = 0.243, 0.773; P = 0.005), (OR = 0.411; 95% CI = 0.229, 0.736; P = 0.003), (OR = 0.332; 95% CI = 0.180, 0.614; P < 0.001), (OR = 0.310; 95% CI = 0.168, 0.572; P < 0.001), respectively. CONCLUSIONS Lower WC and a diet containing high-quality protein, fruits, and vegetables can have a protective role against aggression and are recommended for men with an aggressive mood. This diet can affect plasma levels of tryptophan and, therefore, brain levels of serotonin.
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62P Predictive value of combined positive score (CPS) and tumor proportion score (TPS) for immunotherapy response in advanced non-small cell lung cancer (NSCLC). J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00316-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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1020P Rescue by radiotherapy and anti-CTLA4/PD-1 after failure of anti-PD-1 therapy in metastatic NSCLC patients: The RECLAIM study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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950O Ipilimumab plus nivolumab and chemoradiotherapy followed by surgery in patients with resectable and borderline resectable lung cancer: The INCREASE trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Psychometric evaluation of the Persian version of the Heart Disease Fact Questionnaire (HDFQ) in people with diabetes in Iran. Diabetes Metab Syndr 2022; 16:102563. [PMID: 35809553 DOI: 10.1016/j.dsx.2022.102563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/12/2022] [Accepted: 06/28/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND AIMS Public health and clinic-based educational strategies are desperately needed to stem the tide of death from heart disease among people with diabetes in low and middle-income countries. This study translated the Heart Disease Fact Questionnaire into Persian and evaluated its reliability and validity for use in Iran. METHODS Using rigorous translation methods, the 25-item scale was administered to Persian speakers with diabetes. The scale was evaluated for content validity, construct validity and reliability. RESULTS Participants were 268 patients with diabetes with mean age of 63.19 ± 16.61 years. The mean HDFQ score was 17.31 ± 5.11 (in the low range). Higher scores were associated with younger age, younger age of diabetes onset, higher education, higher employment position, family history of diabetes and hypertension, shorter diabetes duration, and adherence to home exercise regimens. Kuder-Richardson's reliability coefficient was good, i.e., 0.82. Confirmatory factor analysis showed that the factor loadings of all questions, except question number 25, were favorable, i.e., >0.3. Model fit indices were favorable: Chi-square statistic to degree of freedom ratio (χ2⁄df) = 1.82, Comparative fit index = 0.96, Tucker-Lewis Index = 0.96 and root mean square error = 0.06. CONCLUSION After removing item #25, the Persian heart disease fact questionnaire has good validity and reliability and can be used to inform and evaluate clinical and public health educational programs aimed at decreasing risk for heart disease among Persian speakers with diabetes.
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Duplex ureters in potential living kidney donors. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00716-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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PD-0743 Treatment patterns for adrenal metastases in the era of MR-guided stereotactic ablative radiotherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07022-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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VP3-2021: A randomized phase II study of second-line osimertinib (Osi) and bevacizumab (Bev) versus Osi in advanced non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) and T790M mutations (mt): Results from the ETOP BOOSTER trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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P18.02 Factors Influencing Multi-Disciplinary Tumor Board Recommendations in Stage III Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Comparative trachea transcriptome analysis between avian infectious bronchitis virus and avian pathogenic E. coli individual infection and co-infection in SPF chickens. Acta Virol 2021; 64:457-469. [PMID: 33151740 DOI: 10.4149/av_2020_413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Avian infectious bronchitis virus (IBV) and avian pathogenic Escherichia coli (APEC) are two important respiratory pathogens in the chicken. The co-infection can lead to chronic complications and considerable economic losses in the poultry industry worldwide. In the present study, we compared differential transcriptional profiles in the trachea tissue of three infected groups (IBV, APEC, and co-infection) with the control group to investigate transcriptome profile changes at the early stage of the infection. After the challenge of SPF chickens with IBV IS-1494 like (GI-23) and APEC, serotype O78: K80, or co-infection, the trachea tissue was used for RNA extraction, and changes in the transcriptome were investigated by Illumina RNA-seq technique. Up-regulated and down-regulated differentially expressed genes (DEGs) in the transcriptome of each group's trachea were identified. Gene ontology category, KEGG pathway, and gene interaction networks (STRING analysis) were analyzed to identify relationships among differentially expressed genes. In general, the numbers of up-regulated genes were higher than of down-regulated genes. In the co-infection group, a more severe immune response and macrophage infiltration occurred; an important cluster of pathway signaling in this group's up-regulated genes was an apoptotic cluster, cytokine-mediated signaling cluster, and the PAMPs recognizing cluster. This is the first study to provide a general overview of transcriptome changes in the trachea at the early stage of infection with these pathogens. Keywords: avian infectious bronchitis virus; avian pathogenic E. coli; transcriptome; RNA-Seq.
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Surprising impact of stromal TIL's on immunotherapy efficacy in a real-world lung cancer study. Lung Cancer 2021; 153:81-89. [PMID: 33465698 DOI: 10.1016/j.lungcan.2021.01.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/09/2020] [Accepted: 01/10/2021] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Immune checkpoint inhibitors (ICI), such as anti-PD-1 agents, have become part of the standard of care treatment of advanced non-small cell lung cancer (NSCLC). Predictive biomarkers are needed to identify patients that benefit from anti-PD-1 treatments. Tumor infiltrating lymphocytes (TILs) and PD-L1 are major players in the ICI mechanism of action. In this study, we assess the impact of real-world clinicopathological variables, including TILs and PD-L1, on anti-PD-1 efficacy. METHODS We performed a monocenter retrospective study in advanced NSCLC treated with nivolumab or pembrolizumab between January 2015 and February 2019. The impact of baseline clinical and pathological variables was assessed by univariate and multivariate models. TILs, defined as CD8+T-cells, and PD-L1 were scored in tumor and stroma, and correlated with progression free survival (PFS) and overall survival (OS). RESULTS We included 366 patients of whom 141 were assessed for tumor and stromal TILs. The median follow-up time was 487 days. In the whole cohort, PFS was associated with high tumor PD-L1, high albumin and good performance. OS was associated with low LDH, high albumin, good performance and 'first-line treatment'. In the TILs subcohort, stromal TILs had the strongest impact on PFS and OS. Stromal TILs were a stronger marker for PFS and OS than tumoral TILs, tumoral PD-L1 or stromal PD-L1. Remaining factors for PFS and OS were albumin and albumin with LDH, respectively. CONCLUSIONS This real-world study on clinicopathological features shows that stromal CD8 + TILs were the strongest predictor for PFS and OS in patients with advanced NSCLC on anti-PD-1 therapy. Other predictors for PFS and OS included albumin and albumin together with LDH, respectively. This study highlights the pivotal role of the stromal compartment in the mechanisms of action of ICI, and the need for further studies aiming to overcome this stromal firewall.
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1390P Impact of adding viagenpumatucel-L to nivolumab in non-small cell lung cancer (NSCLC) patients with low levels of tumour infiltrating lymphocytes. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Promoting patients health in intensive care units by family members and nurses: A literature review. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2020; 9:114. [PMID: 32642470 PMCID: PMC7325791 DOI: 10.4103/jehp.jehp_506_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/23/2019] [Indexed: 06/11/2023]
Abstract
BACKGROUND Hospitalization in intensive care units (ICUs) can cause physiological and psychological challenges for patients and their family members. Using a family-centered approach in provision of visiting hours promotes the health of patients. The purpose of this study is to review the perception of nurses and family members of patients in ICUs about visiting their patients. METHODOLOGY The published articles in the last 10 years from 2008 to 2018 on the perception of nurses and family members of patients in critical care units about visiting their patients searched for in databases including ScienceDirect, PubMed, Cochrane, Google Scholar, SID, Scopus, CINAHL, OVID, IRANDOC, and Magiran using keywords "family members perception," "nurses' perception," "intensive care units," and "visiting" in English and Farsi, and finally, 15 articles were selected. RESULTS Results showed that nurses do not have appropriate viewpoint about visiting patients in ICUs, and they discussed and outlined the barriers of visiting patients given the benefits of family members' presence. CONCLUSION There are several limitations on the process of family members visiting their patients in the ICUs. It is essential to modify the nurses' attitudes and remove the organizational limitations in this area.
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SAT-209 PREDICTORS OF SURVIVAL PATIENTS ON MAINTENANCE HEMODIALYSIS ACCORDING TO TIME DEPENDENT VALUES; A SINGLE CENTER REPORT. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Clear cell odontogenic carcinoma: a rare jaw tumor. A summary of 107 reported cases. Int J Oral Maxillofac Surg 2019; 48:1405-1410. [PMID: 31227275 DOI: 10.1016/j.ijom.2019.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/22/2019] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to summarize the currently published cases of clear cell odontogenic carcinoma (CCOC). The PubMed and Springer databases were used to collect available reports, searching for 'clear cell odontogenic carcinoma', 'CCOC', or 'clear cell ameloblastoma'. The search resulted in 75 reports detailing 107 cases between 1985 and 2018. Clinically the tumor manifests as a swelling in the posterior mandible (n=46), anterior mandible (n=33), and maxilla (n=28). Radiological analysis of 85 cases typically showed a poorly defined expansive radiolucency (n=83). Of the 70 patients with symptoms reported, 44 specified a swelling, 11 tooth mobility, seven gingival/periodontal issues, five numbness, and three decreased jaw opening. One patient presented with a neck mass. The duration of symptoms prior to seeking care was specified for 52 patients: 2 months to 1 year for 34 patients, 1-2 years for seven, 2-4 years for two, 4-7 years for six, and 7-12 years for three. The incidence of recurrence appeared to be 38 of the 88 cases where recurrence was reported. CCOC can be distinguished from other oral cancers by its distinctive histology and immunohistochemical characteristics and less aggressive behavior. Currently, treatment should be early and aggressive resection with clear surgical margins and long-term follow-up. The overall goal is to collect a cohort of patients.
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Investigation of gold nanoparticle effects in brachytherapy by an electron emitter ophthalmic plaque. Int J Nanomedicine 2019; 14:4157-4165. [PMID: 31239674 PMCID: PMC6560204 DOI: 10.2147/ijn.s205814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/04/2019] [Indexed: 12/17/2022] Open
Abstract
Background: During decades, all improvements and developments in radiation therapy technologies have been focused on its main goal: maximize the dose in the tumor and minimize it in surrounding normal tissues. Recently, scientists have some approaches to nanoparticles, especially gold nanoparticles (GNPs), for dose localization. Purpose: Herein, the effect of GNPs in combination with electron brachytherapy in a model of eye tumor has been investigated. Materials and methods: Monte Carlo simulation was utilized and a complete anatomical model of the eye, a tumor with 5 mm thick, and a type of Ruthenium-106 beta emitter ophthalmic plaque were simulated. Simulation results have been validated by a Plexiglas eye phantom and film dosimetry, experimentally. Results: The results showed using GNPs causes the dose amplification in 2 mm from the plaque surface which the higher concentration has the higher enhancement. At more distances, Dose Enhancement Factors (DEFs) have the negative amounts, so that total delivered dose to the tumor has decreased with increasing of Au concentrations and the dose of organ at risk like sclera has increased. Conclusion: Therefore, using of GNPs along with a 106Ru/106Rh ocular plaque, as an electron emitter source, is a good choice only for superficial lesions, and it is not recommended for deeper tumors due to the parameters of radiation treatment and delivered dose to the tissues.
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Osimertinib treatment for patients with EGFR exon 20 insertion positive non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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P2.13-42 Osimertinib Treatment for Patients with EGFR exon 20 Insertion Positive Non-Small-Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1437] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Adenosine Nucleotides and Serotonin Stimulate von Wille-brand Factor Release from Cultured Human Endothelial Cells. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1648824] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryEndothelial cells (ECs) synthesize and release von Willebrand factor (vWf) either constitutively or from Weibel-Palade bodies by a regulated pathway. Although stimulated release of vWf from ECs occurs following exposure to thrombin, histamine, interleukin, tissue necrosis factor and fibrin in vitro, these agents are unlikely to be present in physiologically relevant concentrations during the initial stages of primary hemostasis. Alternatively, agents known to be released from the dense granules of activated platelets at the sites of vascular injury may provide the initial physiological stimuli for vWf release from ECs in vivo. We have examined the effects of the platelet secretagogues ADP, AMP, ATP and serotonin on the release of vWf from ECs and demonstrated enhanced release in all cases. The extent and time at which optimum vWf release was observed depended on the agonist and its concentration. At 3 nM, optimum release occurred after 4 hours with ADP (330 %/ml) or 1 h with AMP (153%/ml) or ATP (450%/ml). At 30 nM, optimum release was seen after 1 hour with ADP (315 %/ml) or AMP (595%/ml) and after 15 min with ATP (938%/ml). With serotonin, optimal release was seen by 30 min at 0.3 μM (1034%/ml) and after 1 h at 1 pM (745%/ml) although the response after 15 min was nearly equivalent (667%/ml). The doses giving 50% of maximal response (ED50) after 1 h were 6.5 nM (ADP), 15.2 nM (AMP) and 2.4 nM (ATP) and 20 nM for ATP or 75 nM for serotonin after 15 or 30 min respectively. ADP also enhanced PGI2 release from ECs in a dose- and time-dependent manner. These observations support a mechanism whereby activated platelets, which interact with and bind to ECs or subendothelium and release adenine nucleotides or serotonin from platelet dense granules, could stimulate the release of vWf from adjacent ECs thereby enhancing EC-platelet interactions and facilitating primary hemostasis.
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Investigation of the impact of excavation (reinforced) on the seismic behavior of adjacent steel structures under the influence of near-fault and far-fault earthquakes. JOURNAL OF FUNDAMENTAL AND APPLIED SCIENCES 2018. [DOI: 10.4314/jfas.v9i2s.869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Does the risk of metabolic disorders increase among women with polycystic ovary morphology? A population-based study. Hum Reprod 2016; 31:1339-46. [PMID: 27076500 DOI: 10.1093/humrep/dew071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/08/2016] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is polycystic ovary morphology (PCOM) associated with metabolic syndrome (MS), insulin resistance (IR) and dyslipidemia? SUMMARY ANSWER No associations between PCOM and metabolic disorders were found. WHAT IS KNOWN ALREADY Polycystic ovary morphology has a prevalence of 21-63% in healthy women of reproductive age. Results of studies focusing on metabolic abnormalities among females with PCOM, are insufficient and controversial. STUDY DESIGN, SIZE, DURATION This was a cross-sectional population-based study from five provinces in Iran. A standard questionnaire was filled out during face-to-face interviews and clinical examinations were done. All study subjects were invited to undergo blood sampling and ultrasonographic assessment. PARTICIPANTS/MATERIALS, SETTING, METHODS From a total of 1772 women, 809 participants met the inclusion criteria of this study, i.e. non-pregnant, reproductive-age, ovulatory, normo-androgenic, without hyperprolactinemia/thyroid dysfunction. Participants were divided into two groups; 126 women with PCOM on ultrasound assessment, as the case and 683 women with normal ovarian morphology, as the control groups. The association of PCOM with MS, IR and dyslipidemia were analyzed using logistic regression models, adjusted for confounding variables. MAIN RESULTS AND THE ROLE OF CHANCE Mean systolic blood pressure (SBP), high density lipoprotein (HDL) and androstenedione (A4) serum levels of women with PCOM were significantly higher than in the normal group (P = 0.04, 0.05 and 0.008, respectively). Comparison between groups revealed dyslipidemia to be higher among controls. However the results of logistic regression models, after adjustment for possible confounding variables showed that there were no significant association between prevalence of MS, IR and dyslipidemia with PCOM. LIMITATIONS, REASONS FOR CAUTION Due to the study being cross-sectional, blood samples were collected only once thus we did not measure serum concentrations of progesterone in the luteal phase, which determines subclinical anovulation. Moreover, due to budget limitations, enzyme immunoassay was used for androgenic measurements while mass spectrometry-based assays have been known as the gold standard method. However we defined our groups very strictly to overcome these limitations. WIDER IMPLICATIONS OF THE FINDINGS It seems that biochemical and metabolic characteristics of women with PCOM do not differ significantly to those of normal women. To clarify the association between PCOM and metabolic characteristics, longitudinal studies investigating long-term metabolic disorders among women with PCOM are highly recommended. STUDY FUNDING/COMPETING INTEREST No external funding was used for this study. No conflicts of interest are declared.
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Abstract
PURPOSE There is much controversy regarding the use of oral contraceptive pills (OCPs) on cardiometabolic parameters, which is why this longitudinal population-based study was conducted to assess the impact of OCP use and its duration on cardiometabolic factors. METHODS Of 5532 reproductive-aged participants of the Tehran lipid and glucose study, 3160 women who met our inclusion criteria were subdivided according to the duration of OCPs consumption into four sub-groups: (1) Non-users; (2) <11 month users; (3) 12-35 month users, and (4) ≥36 month users, and their cardiometabolic parameters were compared. RESULTS No statistical significant differences were observed between the cardiometabolic parameters of these sub-groups, after further adjustment for confounding factors including age, parity, and education, except for mean low-density lipoprotein-cholesterol which was significantly higher in women who used OCPs for >36 months in comparison to non-OCP users. The odds ratio of hypercholesterolemia was significantly higher in women who used OCPs for >36 months in comparison to non-OCP users; being 1.5 times higher than non-users (95 % CI 1.01-2.2). CONCLUSION Results showed that if used for less than 3 years, OCPs have no cardiometabolic effects.
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Effect of utilization of maize silage in moult inducing diets on performance, immune response and bone quality in laying hens. JOURNAL OF ANIMAL AND FEED SCIENCES 2016. [DOI: 10.22358/jafs/65587/2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Analysis of the Antiproliferative Effects of Curcumin and Nanocurcumin in MDA-MB231 as a Breast Cancer Cell Line. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2016; 15:231-9. [PMID: 27610163 PMCID: PMC4986125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cancer is one of the main causes of mortality in the world which appears by the effect of enviromental physico-chemical mutagen and carcinogen agents. The identification of new cytotoxic drug with low sid effects on immune system has developed as important area in new studies of immunopharmacology. Curcumin is a natural polyphenol with anti-oxidative, anti-inflammatory and anti-cancer properties. Its therapeutic potential is substantially hindered by the rather low water solubility and bioavailability, hence the need for suitable carriers. In this report we employed nanogel-based nanoparticle approach to improve upon its effectiveness. Myristic acid-chitosan (MA-chitosan) nanogels were prepared by the technique of self-assembly. Curcumin was loaded into the nanogels. The surface morphology of the prepared nanoparticles was determined using SEM and TEM. The other objective of this study was to examine the in vitro cytotoxic activity of cell death of curcumin and nanocurcumin on human breast adenocarcinoma cell line (MDA-MB231). Cytotoxicity and viability of curcumin and nanocurcumin were assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and dye exclusion assay. Transmission electron microscopy confirmed the particle diameter was between 150 to 200 nm. Proliferation of MDA-MB231 cells was significantly inhibited by curcumin and nanocurcumin in a concentration-dependent manner in defined times. There were significant differences in IC50 curcumin and nanocurcumin. curcumin -loaded nanoparticles proved more effective compared to TQ solution. The high drug-targeting potential and efficiency demonstrates the significant role of the anticancer properties of curcumin -loaded nanoparticles.
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Pro-survival function of MEF2 in cardiomyocytes is enhanced by β-blockers. Cell Death Discov 2015; 1:15019. [PMID: 27551452 PMCID: PMC4979494 DOI: 10.1038/cddiscovery.2015.19] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/18/2022] Open
Abstract
β1-Adrenergic receptor (β1-AR) stimulation increases apoptosis in cardiomyocytes through activation of cAMP/protein kinase A (PKA) signaling. The myocyte enhancer factor 2 (MEF2) proteins function as important regulators of myocardial gene expression. Previously, we reported that PKA signaling directly represses MEF2 activity. We determined whether (a) MEF2 has a pro-survival function in cardiomyocytes, and (b) whether β-adrenergic/PKA signaling modulates MEF2 function in cardiomyocytes. Initially, we observed that siRNA-mediated gene silencing of MEF2 induces cardiomyocyte apoptosis as indicated by flow cytometry. β1-AR activation by isoproterenol represses MEF2 activity and promotes apoptosis in cultured neonatal cardiomyocytes. Importantly, β1-AR mediated apoptosis was abrogated in cardiomyocytes expressing a PKA-resistant form of MEF2D (S121/190A). We also observed that a β1-blocker, Atenolol, antagonizes isoproterenol-induced apoptosis while concomitantly enhancing MEF2 transcriptional activity. β-AR stimulation modulated MEF2 cellular localization in cardiomyocytes and this effect was reversed by β-blocker treatment. Furthermore, Kruppel-like factor 6, a MEF2 target gene in the heart, functions as a downstream pro-survival factor in cardiomyocytes. Collectively, these data indicate that (a) MEF2 has an important pro-survival role in cardiomyocytes, and (b) β-adrenergic signaling antagonizes the pro-survival function of MEF2 in cardiomyocytes and β-blockers promote it. These observations have important clinical implications that may contribute to novel strategies for preventing cardiomyocyte apoptosis associated with heart pathology.
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Psychomotor effects of mixed organic solvents on rubber workers. THE INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE 2014; 5:78-83. [PMID: 24747998 PMCID: PMC7767612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Accepted: 02/24/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Exposure to organic solvents is common among workers. OBJECTIVE To assess neurobehavioral effects of long-term exposure to organic solvents among rubber workers in Tehran, Iran. METHODS Across-sectional study was conducted on 223 employees of a rubber industry. The participants completed a data collection sheet on their occupational and medical history, and demographic characteristics including age, work experience, education level; they performed 6 psychiatric tests on the neurobehavioral core test battery (NCTB) that measure simple reaction time, short-term memory (digit span, Benton), eye-hand coordination (Purdue pegboard, pursuit aiming), and perceptual speed (digit symbol). RESULTS Workers exposed and not exposed to organic solvents had similar age and education distribution. The mean work experience of the exposed and non-exposed workers was 5.9 and 4.4 years, respectively. The exposed workers had a lower performance compared to non-exposed workers in all psychomotor tests. After controlling for the confounders by logistic regression analysis, it was found that exposure to organic solvents had a significant effect on the results of digit symbols, digit span, Benton, aiming, and simple reaction time tests. No significant effect was observed in pegboard test. CONCLUSION Occupational exposure to organic solvent can induce subtle neurobehavioral changes among workers exposed to organic solvents; therefore, periodical evaluation of the central nervous system by objective psychomotor tests is recommended among those who are chronically exposed to organic solvents.
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Cross-talk between glycogen synthase kinase 3β (GSK3β) and p38MAPK regulates myocyte enhancer factor 2 (MEF2) activity in skeletal and cardiac muscle. J Mol Cell Cardiol 2012; 54:35-44. [PMID: 23137781 DOI: 10.1016/j.yjmcc.2012.10.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 10/26/2012] [Accepted: 10/28/2012] [Indexed: 12/21/2022]
Abstract
Characterizing the signaling network that controls MEF2 transcription factors is crucial for understanding skeletal and cardiac muscle gene expression. Glycogen synthase kinase 3β (GSK3β) regulates MEF2 activity indirectly through reciprocal regulation of p38MAPK. Cross-talk between GSK3β and p38MAPK regulates MEF2 activity in skeletal and cardiac muscle. Understanding cross-talk in the signaling network converging at MEF2 control has therapeutic implications in cardiac and skeletal muscle pathology. Glycogen synthase kinase 3β (GSK3β) is a known regulator of striated muscle gene expression suppressing both myogenesis and cardiomyocyte hypertrophy. Since myocyte enhancer factor 2 (MEF2) proteins are key transcriptional regulators in both systems, we assessed whether MEF2 is a target for GSK3β. Pharmacological inhibition of GSK3β resulted in enhanced MEF2A/D expression and transcriptional activity in skeletal myoblasts and cardiac myocytes. Even though in silico analysis revealed GSK3β consensus (S/T)XXX(S/T) sites on MEF2A, a subsequent in vitro kinase assay revealed that MEF2A is only a weak substrate. However, we did observe a posttranslational modification in MEF2A in skeletal myoblasts treated with a GSK3β inhibitor which coincided with increased p38MAPK phosphorylation, a potent MEF2A activator, indicating that GSK3β inhibition may de-repress p38MAPK. Heart specific excision of GSK3β in mice also resulted in up-regulation of p38MAPK activity. Interestingly, upon pharmacological p38MAPK inhibition (SB203580), GSK3β inhibition loses its effect on MEF2 transcriptional activity suggesting potent cross-talk between the two pathways. Thus we have documented that cross-talk between p38MAPK and GSK3β signaling converges on MEF2 activity having potential consequences for therapeutic modulation of cardiac and skeletal muscle gene expression.
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A MODEL FOR EVALUATION OF SAFE COMMUNITIES IN LOW AND MIDDLE INCOME COUNTRIES. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580e.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Glanders outbreak at Tehran Zoo, Iran. IRANIAN JOURNAL OF MICROBIOLOGY 2012; 4:3-7. [PMID: 22783454 PMCID: PMC3391557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND OBJECTIVES In December 2010 four, lions and one tiger died at the Tehran zoo. Out of all samples, Burkholderia mallei (causative agent of Glanders) was isolated just from ulcer sample of the tiger which was imported to Iran from Russia. MATERIALS AND METHODS One nasal swab from a tiger and fifteen blood samples with anticoagulant belonging to one tiger and fourteen lions (four dead lions and eleven live lions) were collected and were inoculated directly onto the selective media. The isolate was identified by morphological and biochemical and API BBL tests and PCR using specific primers (Bma- IS407-flip). The standard (Razi Type Culture Collection RTCC: 2375) and tiger isolates were inoculated into 2 guinea pigs. All residue solipeds and carnivores were checked by Malleination test and Complement Fixation (CF) Test respectively. RESULTS One isolate of B. mallei was isolated from tiger's nasal swab. Both of B.mallei strains were recovered from inoculated animals. All of solipeds were negative by malleination test, however, 11 lions including 4 dead and 7 live lions out of 14 lions were positive in CF test for Glanders and all were put down by the authorities. CONCLUSION Active surveillance of Glanders is essential for solipeds, especially it's more important while being used to feed valuable carnivores like lions and tigers. Therefore, a reliable test like malleination must be carried out twice (first before transferring and one month after quarantine). Both test results should be negative for use for feeding.
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Impact of preconception health education on health locus of control and self-efficacy in women. EASTERN MEDITERRANEAN HEALTH JOURNAL = LA REVUE DE SANTE DE LA MEDITERRANEE ORIENTALE = AL-MAJALLAH AL-SIHHIYAH LI-SHARQ AL-MUTAWASSIT 2010; 16:396-401. [PMID: 20795423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The preconception period is an ideal opportunity to optimize women's health. This study of women attending premarital clinics in the Islamic Republic of Iran aimed to evaluate the impact of a health education workshop on their health locus of control and self-efficacy in physical activity. The design was a randomized controlled trial with a questionnaire before and after the intervention. At post-intervention, there were significant increases in scores of internal health locus of control and self-efficacy in the experimental group (n = 109) compared to the control group (n = 101). It was concluded that a short-term health education may empower women to adopt healthy lifestyles.
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Impact of preconception health education on health locus of control and self-efficacy in women. EASTERN MEDITERRANEAN HEALTH JOURNAL 2010. [DOI: 10.26719/2010.16.4.396] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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P274 Frequency of pneumonia among patients hospitalized for acute stroke. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70493-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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P112 Rapid diagnosis of acute meningitis using reagent strips. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70331-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Phase II trial of old age acute myeloid leukemia treatment by arsenic trioxide and low-dose subcutaneous cytosin arabinoside. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.7075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7075 Background: AML is a disease of old age, but unfortunately due to several factors standard treatment can not be delivered to these patients. Here we tried to achieve to bet possible response to these patients. Methods: Eleven old age patients selected for this trial. Patients couldn't tolerate standard treatment of AML due to old age or comorbid disorders. Treatment consist of best supportive care plus administration of low dose ARA-C (20mg/day as SQ) for 10 days each months and arsenic trioxide 10 mg/day as 2 hour iv infusion each month. Patients followed by CBC and BMA/B when peripheral blood normalized or every other month. Results: This cohort consist of 8 men and 3 women. Median age was 75 y/o (55–80). Median WBC count Hb level and platelet count at presentation were 42,860μl, 8.3g/dl and 30,500/μl, respectively. Complete remission observed in 6 and partial remission in one patient (RR = 63.6%), but remission was short live, after 6 months one patient was in CR and one in PR. After 12 months, only one patient was in PR. Median survival was 6 months and 6 patients survive more than 6 months. Two patients are alive after 12 months. Conclusions: Although prognosis of old age AML remain poor, but with this type of treatment RR is acceptable. In this very high-risk group of very old AML, combination of ATO and ARA-C possibly could improve survival. No significant financial relationships to disclose.
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Starvation can protect fish against waterborne copper exposure. Comp Biochem Physiol A Mol Integr Physiol 2008. [DOI: 10.1016/j.cbpa.2008.05.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Aromatic hydrocarbon 1,2-diacetylbenzene cross-links neurofilament and other proteins. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.81.s1.40_9.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Effect of temperature on tensile properties of injection moulded short glass fibre and glass bead filled ABS hybrids. EXPRESS POLYM LETT 2008. [DOI: 10.3144/expresspolymlett.2008.57] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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MP-15.14 (Podium): Outcome after renal transplantation in pediatric patients: results of 15 years experience in a single center. Urology 2007. [DOI: 10.1016/j.urology.2007.06.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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A novel method for intracoronary delivery of mesenchymal stem cells following myocardial infarct in pigs diminishes the risk of reduced reperfusion due to microvascular plugging. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2007. [DOI: 10.1016/j.carrev.2007.03.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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INFLUENCE OF TEMPERATURE ON WORK OF FRACTURE PARAMETERS IN SEMI-CRYSTALLINE POLYESTER FILMS. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-120013070] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Thermal effects on weld and unweld tensile properties of injection moulded short glass fibre reinforced ABS composites. EXPRESS POLYM LETT 2007. [DOI: 10.3144/expresspolymlett.2007.94] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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MP-02.17. Urology 2006. [DOI: 10.1016/j.urology.2006.08.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Nosocomial blood stream infections in Imam Khomeini Hospital, Urmia, Islamic Republic of Iran, 1999-2001. EASTERN MEDITERRANEAN HEALTH JOURNAL = LA REVUE DE SANTE DE LA MEDITERRANEE ORIENTALE = AL-MAJALLAH AL-SIHHIYAH LI-SHARQ AL-MUTAWASSIT 2005; 11:478-84. [PMID: 16602469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In a 2-year retrospective study, the database of the microbiology laboratory of the Imam Khomeini Hospital was reviewed to identify patients who had nosocomial bacteraemia between 1 May 1999 and 31 May 2001 and identify the pathogen responsible and its resisitance to antibiotics. Of 6492 patients in various wards, 593 (9.1%) had positive blood cultures; 85 of those (14.3%) had signs of potential skin contamination. Gram-positive cocci, including coagulase-negative staphylococci, Staphylococcus aureus, Streptococcus pneumoniae and other Gram-positive cocci, accounted for 42.3% of isolates. Gram-negative bacilli were responsible for another 42.3% of isolates; Pseudomonas aeruginosa was the predominant isolate. Patterns of drug resistance varied according to species of bacteria but were generally quite high.
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Work of fracture of PBT/PC blend: Effect of specimen size, geometry, and rate of testing. POLYM ENG SCI 2004. [DOI: 10.1002/pen.11734] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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