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Hasan S, Zamani A, Brankovic A, Bialkowski K, Abbosh AM. Stroke Classification with Microwave Signals using Explainable Wavelet Convolutional Neural Network. IEEE J Biomed Health Inform 2023; PP:1-10. [PMID: 37874697 DOI: 10.1109/jbhi.2023.3327296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Stroke is one of the leading causes of death and disability. To address this challenge, microwave imaging has been proposed as a portable medical imaging modality. However, accurate stroke classification using microwave signals is still an open challenge. In addition, identified features of microwave signals used for stroke classification need to be linked back to the original data. This work attempts to address these issues by proposing a wavelet convolutional neural network (CNN), which combines multiresolution analysis and CNN to learn distinctive patterns in the scalogram for accurate classification. A game theoretic approach is used to explain the model and indicate distinctive features for discriminating stroke types. The proposed algorithm is tested in simulation and experiments. Different types of noise and manufacturing tolerances are modeled using data collected from healthy human trials and added to the simulation data to bridge the gap between the simulation and real-life data. The achieved classification accuracy using the proposed method ranges from 81.7% for 3D simulations to 95.7% for lab experiments using simple head phantoms. Obtained explanations using the method indicate the relevance of wavelet coefficients on frequencies 0.95-1.45 GHz and the time slot of 1.3 to 1.7 ns for distinguishing ischemic from hemorrhagic strokes.
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Carter T, Abouelela E, Zamani A, Cowen J, Amir T, King J. Evaluating Delays in Commencing Adjuvant Treatment for Early Breast Cancer Following Oncotype Dx Testing. Clin Oncol (R Coll Radiol) 2022. [DOI: 10.1016/j.clon.2021.12.027] [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: 11/03/2022]
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Sharafi M, Sajjadnia Z, Zamani A. A first-order integer-valued autoregressive process with zero-modified Poisson-Lindley distributed innovations. COMMUN STAT-SIMUL C 2021. [DOI: 10.1080/03610918.2020.1864644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M. Sharafi
- Department of Statistics, Shiraz University, Shiraz, Iran
| | - Z. Sajjadnia
- Department of Statistics, Shiraz University, Shiraz, Iran
| | - A. Zamani
- Department of Statistics, Shiraz University, Shiraz, Iran
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Zamani A, Sajjadnia Z, Hashemi M. The Wold decomposition of Hilbertian periodically correlated processes. Theor Probability and Math Statist 2021. [DOI: 10.1090/tpms/1116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hashemi M, Mateu J, Zamani A. Periodically Correlated Space-Time Autoregressive Hilbertian Processes. JSTA 2021. [DOI: 10.2991/jsta.d.210525.001] [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: 11/01/2022] Open
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Nouri K, Khalaji S, Zamani A, Saki A. Acid hydrolysis of gelatin extracted from cow skin: properties and potential for use as a source of small peptides and free amino acids for broiler chickens. Anim Prod Sci 2021. [DOI: 10.1071/an20411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Acid hydrolysis of animal and plant protein ingredients can generate beneficial and cost-effective peptides and free amino acids for use in livestock feed.
Aims
The aim was to determine whether a cow-skin gelatin (CSG) hydrolysate, rich in low-molecular-weight peptides and free amino acid and produced through acid (4 M HCl) hydrolysis, improved the digestibility of CSG and performance of broilers.
Methods
Day-old Ross 308 chicks (n = 320) were allocated to four treatments (control, maize–soy basal diet; CSG at 92 g/kg basal diet; acid-hydrolysed CSG (AHCSG) at 45 and 92 g/kg basal diet) in a completely randomised design with eight replicate pens per treatment and 10 chicks in each pen. Molecular weights of CSG and AHCSG were characterised by SDS–PAGE, and protein concentration and degree of hydrolysis of AHCSG determined. Broilers were assessed for performance measures and intestinal and serum characteristics.
Key results
The AHCSG had a protein concentration of 84.3%, with a degree of hydrolysis of 66.5%. Respective molecular weights of CSG and AHCSG were 20–128 kDa and 3.5–10 kDa. Bodyweight gain and feed intake were dramatically (P ≤ 0.001) reduced and feed conversion ratio increased with inclusion of CSG and especially AHCSG in the diet. Inclusion of AHCSG reduced (P < 0.05) ileal digesta viscosity compared with CSG, and reduced (P < 0.05) plasma uric acid concentration, villi height and crypt depth compared with the CSG and control diets. AHCSG inclusion in the diet reduced protein digestibility by ~25% (at 45 g/kg) and 50% (at 92 g/kg) compared with the control; CSG also reduced protein digestibility by ~50%. The Salmonella population of ceca was reduced (P = 0.05) with the diet containing 92 g AHCSG/kg compared with the CSG and control diets. Trypsin activity was not affected by diet, but total alkaline protease activity was reduced (P < 0.01) at days 35 of age by inclusion of AHCSG in the diet. Carcass and breast relative weight, and breast fillet crude protein were lower (P < 0.05) for broilers fed diets containing CSG or AHCSG than the control.
Conclusions
Acid hydrolysis of CSG produced large quantities of free amino acids and small peptides, but this did not improve the performance of broiler chickens compared with CSG. Performance was similarly poor with dietary inclusion of AHCSG and CSG relative to the control diet without CSG products.
Implications
Although large quantities of free amino acids and small peptides were produced by acid hydrolysis of CSG, further research is needed to understand the possible problems with acid hydrolysis and why it negatively affects broiler performance.
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Zamani A, Zueter AR, Muhd Besari A, Hasan H, Harun A, Deris ZZ. Reduced susceptibility of Burkholderia pseudomallei following exposure to carbapenem. Trop Biomed 2020; 37:783-790. [PMID: 33612791 DOI: 10.47665/tb.37.3.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reduced susceptibility in Burkholderia pseudomallei during carbapenem therapy may lead to treatment failure. We isolated a clinical strain that had developed reduced susceptibility to carbapenems while on treatment. After reviewing the patient's clinical notes, the initial isolate (BUPS01/14) was exposed to carbapenem in vitro to mimic the clinical scenario. The stability of susceptibility of the carbapenem-exposed strain (BUPS01/14R) was examined by serial subculture in antibiotic-free broth. Biochemical and morphological comparison was performed by the VITEK® system and electron microscopy. MICs increased 32-fold following carbapenem exposure and became stable in the antibiotic-free environment. On electron microscopic examination, the BUPS01/14R cells were smoother and less wrinkled compared to BUPS01/14 cells. This report highlights a potential anti-melioidosis treatment failure due to the emergence of resistance while on carbapenem monotherapy. Further study of this strain is necessary to understand the mechanism of resistance at a molecular level.
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Affiliation(s)
- A Zamani
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
| | - A R Zueter
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.,Faculty of Allied Health Sciences, the Hashemite University, Zarqa, Jordan
| | - A Muhd Besari
- Infectious Diseases Unit, Department of Medicine, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - H Hasan
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - A Harun
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Z Z Deris
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
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HosseiniPanah S, Zamani A, Emadi F, HamtaeiPour F. Multiple Sclerosis Lesions Segmentation in Magnetic Resonance Imaging using Ensemble Support Vector Machine (ESVM). J Biomed Phys Eng 2020; 9:699-710. [PMID: 32039101 PMCID: PMC6943841 DOI: 10.31661/jbpe.v0i0.986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/04/2018] [Indexed: 11/16/2022]
Abstract
Background Multiple Sclerosis (MS) syndrome is a type of Immune-Mediated disorder in the central nervous system (CNS) which destroys myelin sheaths, and results in plaque (lesion) formation in the brain. From the clinical point of view, investigating and monitoring information such as position, volume, number, and changes of these plaques are integral parts of the controlling process this disease over a period. Visualizing MS lesions in vivo with Magnetic Resonance Imaging (MRI) has a key role in observing the course of the disease. Material and Methods In this analytical study, two different processing methods were present in this study in order to make an effort to detect and localize lesions in the patients' FLAIR (Fluid-attenuated inversion recovery) images. Segmentation was performed using Ensemble Support Vector Machine (SVM) classification. The trained data was randomly divided into five equal sections, and each section was fed into the computer as an input to one of the SVM classifiers that led to five different SVM structures. Results To evaluate results of segmentation, some criteria have been investigated such as Dice, Jaccard, sensitivity, specificity, PPV and accuracy. Both modes of ESVM, including first and second ones have similar results. Dice criterion was satisfied much better with specialist's work and it is observed that Dice average has 0.57±.15 and 0.6±.12 values in the first and second approach, respectively. Conclusion An acceptable overlap between those results reported by the neurologist and the ones obtained from the automatic segmentation algorithm was reached using an appropriate pre-processing in the proposed algorithm. Post-processing analysis further reduced false positives using morphological operations and also improved the evaluation criteria, including sensitivity and positive predictive value.
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Affiliation(s)
- S HosseiniPanah
- MSc, Department of Biomedical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A Zamani
- PhD, Department of Biomedical Physics and Engineering, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - F Emadi
- PhD, Department of Neurology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - F HamtaeiPour
- PhD Student, Department of Biomedical Physics and Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Hosseini MA, Hosseini A, Jarideh S, Argasi H, Shekoohi-Shooli F, Zamani A, Taeb S, Haghani M. EVALUATING SHORT-TERM EXPOSURE TO WI-FI SIGNALS ON STUDENTS' REACTION TIME, SHORT-TERM MEMORY AND REASONING ABILITY. Radiat Prot Dosimetry 2019; 187:279-285. [PMID: 31251356 DOI: 10.1093/rpd/ncz162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 04/29/2019] [Accepted: 06/01/2019] [Indexed: 06/09/2023]
Abstract
This study investigated the effect of short-term exposure to Wi-Fi signals on the cognitive functions of the mind. After obtaining permission from the local Ethics Committee of Shiraz University of Medical Sciences and approval by the Iranian Registry of Clinical Trials (IRCT2017041233398N1), 45 male and female students from Shiraz University of Medical Sciences volunteered to participate in this study. They were exposed to Wi-Fi signals in two sham and exposure sessions, each for 2 hours. After completion, they took part in reaction time, short-term memory, and reasoning ability tests. After scoring, the data were analysed by SPSS software. In addition, the electric field strength and power density were calculated. The results showed no statistically significant differences between the mean scores of reaction time, short-term memory, and reasoning ability in sham and exposure. Also, the obtained values from the electric field strength and power density (E = 4.1 Vm-1, P = 0.446 Wm-2) were lower than that of threshold values by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Our results can greatly reduce concerns regarding the effects of short-term exposure to Wi-Fi waves on cognitive functions.
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Affiliation(s)
- M A Hosseini
- Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - A Hosseini
- Department of Occupational Health, School of Health and Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Jarideh
- Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - H Argasi
- Research Consultation Center (RCC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - F Shekoohi-Shooli
- Department of Neuroscience, Imaging and Clinical Sciences, 'G. d'Annunzio' University of Chieti-Pescara, Chieti, Italy
| | - A Zamani
- Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Taeb
- Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Haghani
- Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Sardarian K, Maghsood AH, Farimani M, Hajilooi M, Saidijam M, Ghane ZZ, Mahaki H, Zamani A. Detection of Toxoplasma gondii B1 Gene and IgM in IgG Seropositive Pregnant Women. Clin Lab 2019; 65. [PMID: 30775900 DOI: 10.7754/clin.lab.2018.180425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The onset of acute toxoplasmosis in pregnant women may pose a risk to their growing fetuses. The timely diagnosis of infection in managing the disease and preventing its harmful consequences on the fetus is very important. Therefore, the study was conducted to identify acute toxoplasmosis in the pregnant women by detecting the specific IgM antibody and Toxoplasma gondii B1 gene. METHODS A total of 653 serum samples of women who attended to Fatemieh Hospital of Hamadan University of Medical Sciences were tested for IgG antibodies against Toxoplasma gondii by enzyme-linked immunosorbent as-say (ELISA). The IgG positive specimens were further examined for IgM by ELISA and polymerase chain reaction (PCR) for B1 gene. In the second phase, change in IgG titers was evaluated on 47 IgG positive samples after two weeks. RESULTS ELISA data showed that 167 out of 653 and 2 out of 167 samples were positive for IgG (25.6%) and IgM (1.2%), respectively. However, PCR detection showed that 36 cases (21.6%) were positive for the B1 gene. Seven out of 47 IgG positive samples showed an increase in the antibody titer and positive for the B1 gene. The most cases of IgG positives and the B1 gene samples were associated with the third trimester of pregnancy with 49.7% and 14%, respectively, and the most common abundance of the B1 gene was 14.4% in the age group of 26 - 35. The most commonly reported clinical symptoms in the B1 gene-positive women were nausea 15 (41.7%), cough 13 (36.1%), headache 12 (33.3%), and vomiting 11 (30.5%). CONCLUSIONS Using PCR and the B1 gene in serum samples of pregnant women to detect acute toxoplasmosis is a more appropriate and accurate method than IgM antibody.
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Zagheh M, Golmohammadi R, Alahgholi-Hajibehzad M, Najafi-Vosough R, Zareighane Z, Zamani A. Effects of Light on In Vitro Production of Melatonin by Human Peripheral Blood Mononuclear, Polymorphonuclear, and Whole Blood Cells. NEUROPHYSIOLOGY+ 2019. [DOI: 10.1007/s11062-019-09802-y] [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: 11/24/2022]
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Beyranvand F, Khalaji S, Zamani A, Manafi M. Effects of gelatin prepared from calf bones rich in phosphorus on broiler performance, bone characteristics and digestive enzymes activity. Br Poult Sci 2018; 60:31-38. [PMID: 30309249 DOI: 10.1080/00071668.2018.1535167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 10/28/2022]
Abstract
1. Gelatin prepared from calf bones (GCB) is a novel source of high-quality protein and phosphorus. Its inclusion in broiler chicken diets may improve bone strength, plasma and digestive alkaline phosphatase activity (ALP), phosphorus digestibility and performance of broilers. Therefore, di-calcium phosphate in a corn-soy control diet was replaced with 12, 24, and 36 g/kg of GCB in a completely randomised design with four treatments of six replicates and 10 chicks in each pen. The trial lasted from 1 to 42 d of age. 2. Body weight and feed intake were measured weekly. Plasma calcium and phosphorus concentration along with plasma and digestive ALP were assayed throughout the trial. Trypsin, α-amylase, lipase and total protease activity were assayed at 14 and 28 d of age. Tibia ash, calcium and phosphorus content and breaking strength were measured at 14, 28 and 42 d of age. Phosphorus digestibility was measured at 36 d of age. 3. Body weight and feed intake showed no significant differences between controls and diets containing 12 and 36 g/kg GCB. Tibia ash and tibia length were increased by supplementation of GCB (P ≤ 0.001). Tibia calcium and phosphorus content were increased by GCB inclusion at 14 d of age (P ≤ 0.001). Digestive alkaline phosphatase activity was increased and trypsin activity was reduced by inclusion of GCB (P ≤ 0.001; P ≤ 0.004). α-amylase activity decreased by inclusion of 12 and 24 g/kg GCB, whereas an increase in α-amylase activity was observed by inclusion of 36 g/kg GCB (P ≤ 0.001). Supplementation of diets with GCB increased phosphorus digestibility (P ≤ 0.01) and suppressed ileum growth during the experimental period. 4. Results of the current study showed that phosphorus from gelatin can greatly improve broiler bone characteristics and phosphorus digestibility and complete elimination of inorganic phosphate sources from broiler diets is feasible with inclusion of 36 g/kg high phosphorus gelatin.
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Affiliation(s)
- F Beyranvand
- a Department of Animal Science, Faculty of Agricultural Sciences , Malayer University , Malayer , Iran
| | - S Khalaji
- a Department of Animal Science, Faculty of Agricultural Sciences , Malayer University , Malayer , Iran
| | - A Zamani
- b Department of Fisheries, Faculty of Natural Resources and Environment , Malayer University , Malayer , Iran
| | - M Manafi
- a Department of Animal Science, Faculty of Agricultural Sciences , Malayer University , Malayer , Iran
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Ghofrani Jahromi M, Parsaei H, Zamani A, Dehbozorgi M. Comparative Analysis of Wavelet-based Feature Extraction for Intramuscular EMG Signal Decomposition. J Biomed Phys Eng 2017; 7:365-378. [PMID: 29392120 PMCID: PMC5758715] [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: 02/16/2016] [Accepted: 03/09/2016] [Indexed: 11/04/2022]
Abstract
BACKGROUND Electromyographic (EMG) signal decomposition is the process by which an EMG signal is decomposed into its constituent motor unit potential trains (MUPTs). A major step in EMG decomposition is feature extraction in which each detected motor unit potential (MUP) is represented by a feature vector. As with any other pattern recognition system, feature extraction has a significant impact on the performance of a decomposition system. EMG decomposition has been studied well and several systems were proposed, but feature extraction step has not been investigated in detail. OBJECTIVE Several EMG signals were generated using a physiologically-based EMG signal simulation algorithm. For each signal, the firing patterns of motor units (MUs) provided by the simulator were used to extract MUPs of each MU. For feature extraction, different wavelet families including Daubechies (db), Symlets, Coiflets, bi-orthogonal, reverse bi-orthogonal and discrete Meyer were investigated. Moreover, the possibility of reducing the dimensionality of MUP feature vector is explored in this work. The MUPs represented using wavelet-domain features are transformed into a new coordinate system using Principal Component Analysis (PCA). The features were evaluated regarding their capability in discriminating MUPs of individual MUs. RESULTS Extensive studies on different mother wavelet functions revealed that db2, coif1, sym5, bior2.2, bior4.4, and rbior2.2 are the best ones in differentiating MUPs of different MUs. The best results were achieved at the 4th detail coefficient. Overall, rbior2.2 outperformed all wavelet functions studied; nevertheless for EMG signals composed of more than 12 MUPTs, syms5 wavelet function is the best function. Applying PCA slightly enhanced the results.
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Affiliation(s)
- M. Ghofrani Jahromi
- Department of Medical Physics and Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
| | - H. Parsaei
- Department of Medical Physics and Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A. Zamani
- Department of Medical Physics and Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M. Dehbozorgi
- Department of Medical Physics and Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
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Zeinali R, Keshtkar A, Zamani A, Gharehaghaji N. Brain Volume Estimation Enhancement by Morphological Image Processing Tools. J Biomed Phys Eng 2017; 7:379-388. [PMID: 29445714 PMCID: PMC5809931] [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: 05/29/2016] [Accepted: 06/13/2016] [Indexed: 11/14/2022]
Abstract
BACKGROUND Volume estimation of brain is important for many neurological applications. It is necessary in measuring brain growth and changes in brain in normal/abnormal patients. Thus, accurate brain volume measurement is very important. Magnetic resonance imaging (MRI) is the method of choice for volume quantification due to excellent levels of image resolution and between-tissue contrast. Stereology method is a good method for estimating volume but it requires to segment enough MRI slices and have a good resolution. In this study, it is desired to enhance stereology method for volume estimation of brain using less MRI slices with less resolution. METHODS In this study, a program for calculating volume using stereology method has been introduced. After morphologic method, dilation was applied and the stereology method enhanced. For the evaluation of this method, we used T1-wighted MR images from digital phantom in BrainWeb which had ground truth. RESULTS The volume of 20 normal brain extracted from BrainWeb, was calculated. The volumes of white matter, gray matter and cerebrospinal fluid with given dimension were estimated correctly. Volume calculation from Stereology method in different cases was made. In three cases, Root Mean Square Error (RMSE) was measured. Case I with T=5, d=5, Case II with T=10, D=10 and Case III with T=20, d=20 (T=slice thickness, d=resolution as stereology parameters). By comparing these results of two methods, it is obvious that RMSE values for our proposed method are smaller than Stereology method. CONCLUSION Using morphological operation, dilation allows to enhance the estimation volume method, Stereology. In the case with less MRI slices and less test points, this method works much better compared to Stereology method.
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Affiliation(s)
- R. Zeinali
- M.Sc. Student of Medical Physics, Tabriz University of Medical Science,Tabriz, Iran
| | - A. Keshtkar
- Professor of Medical Physics and Engineering, Medical Physics Department, School of Medicine, Tabriz, Iran
| | - A. Zamani
- Assistant Professor of Biomedical Engineering, Biomedical Physics and Biomedical Engineering Dept., Shiraz University of Medical Sciences, Shiraz, Iran
| | - N. Gharehaghaji
- Associate Professor of Medical Physics, Radiology Department, School of Paramedical, Tabriz, Iran
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Khodadadi Kohlan I, Siahpoushi E, Tayebinia H, Goodarzi M, Zamani A. SUN-P137: Inhibitory Effects of Resveratrol on Sterile inflammation in High Fat Diet Induced Obesity. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30490-9] [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: 10/18/2022]
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Ahdi Rezaeieh S, Zamani A, Bialkowski KS, Abbosh AM. Novel Microwave Torso Scanner for Thoracic Fluid Accumulation Diagnosis and Monitoring. Sci Rep 2017; 7:304. [PMID: 28331176 PMCID: PMC5428468 DOI: 10.1038/s41598-017-00436-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 06/21/2016] [Accepted: 02/27/2017] [Indexed: 11/22/2022] Open
Abstract
Thoracic fluid accumulation is one of the significant and early-stage manifestations of fatal diseases, such as lung-cancer, liver-failure and congestive heart-failure. Currently, computational-tomography (CT)-Scan is the most widely used tool for the detection of thoracic fluid. Yet, it is unable to detect small amounts of fluid, has ionizing radiation and lacks mobility. On the other hand, microwave imaging systems have emerged as an accurate and portable complementary diagnostic tool. However, there is a lack of a complete clinical platform that can fulfill the requirements of accurate and reliable imaging. Therefore, a microwave torso scanner that is designed to meet those requirements is presented. In this system, two elliptical-arrays of microwave antennas (sensors) transmit signals towards the torso and collect the back-scattered signals. The captured signals are then processed by a frequency-based imaging algorithm to form microwave images that display a possible accumulated fluid. The system successfully detects and localized small volumes (3 mL) of fluid injected at different places inside a torso-phantom. As preparations for future clinical trials, the system is tested on healthy subjects to define the threshold range of healthy scenario images.
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Affiliation(s)
- S Ahdi Rezaeieh
- School of ITEE, The University of Queensland, St Lucia, 4072, Brisbane, Australia.
| | - A Zamani
- School of ITEE, The University of Queensland, St Lucia, 4072, Brisbane, Australia
| | - K S Bialkowski
- School of ITEE, The University of Queensland, St Lucia, 4072, Brisbane, Australia
| | - A M Abbosh
- School of ITEE, The University of Queensland, St Lucia, 4072, Brisbane, Australia
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Nasiri Kalmarzi R, Zamani A, Fathallahpour A, Ghaderi E, Rahehagh R, Kooti W. The relationship between serum levels of vitamin D with asthma and its symptom severity: A case-control study. Allergol Immunopathol (Madr) 2016; 44:547-555. [PMID: 27477034 DOI: 10.1016/j.aller.2016.04.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/15/2016] [Accepted: 04/27/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Asthma is a heterogeneous disease characterised by chronic inflammatory airways, and is affected by several immunological factors. One of the most discussed and researched hypotheses is the relationship between vitamin D serum levels with asthma. This study aimed to investigate the relationship between vitamin D serum levels with asthma and pulmonary functions in children in Kurdistan province, Iran. MATERIALS AND METHODS In this case-control study, 120 children ranging from 6 to 18 years were referred in summer for investigation. Participants were divided into two groups: asthma group, N=60; and control group, N=60. After serum separation, samples were analysed using vitamin D ELISA kit. Additionally, pulmonary function test and serum IgE levels were measured in both groups. Data were analysed using Chi-square test and multiple regression analysis in SPSS15. RESULTS No difference was shown between the groups in terms of gender composition (male: 57.5; female: 42.5) (P>0.05). Average Vitamin D serum level in the case group (17.98±8.68) was less than in control group (22.35±6.26) (P<0.01). In addition, the difference of vitamin D deficiency in level of suboptimal between the asthma (17.77±6.41) and the control group (24.9±3.18) was statistically significant (P<0.0001). Positive correlation existed between vitamin D levels with FEV1, FVC, and FEV1/FVC. Multiple regression analysis showed a reverse relationship between vitamin D levels with IgE serum levels; this remained after adjustment for potential confounders (e.g. age, sex, BMI, FEV1, and FVC). CONCLUSION The results showed that serum levels of vitamin D in asthma patients were less than in healthy people, and also reduced lung function in these patients. So, the serum levels of vitamin D in asthma patients must be checked continuously.
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Seifpanahi-Shabani H, Abbasi M, Salehi I, Yousefpour Z, Zamani A. Long-term Exposure to Extremely Low Frequency Electromagnetic Field and Melatonin Production by Blood Cells. Int J Occup Environ Med 2016; 7:193-4. [PMID: 27393327 PMCID: PMC6818084 DOI: 10.15171/ijoem.2016.807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/01/2016] [Indexed: 11/09/2022]
Affiliation(s)
- H Seifpanahi-Shabani
- Students Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
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Abstract
Abstract
Sahastata amethystina sp. n. is described based on the holotype female from Kerman Province, Iran. The new species is easily differentiated from other congeners by the bright violet carapace in live specimens as well as by shape of the calamistrum and endogyne.
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Panahi Y, Izadi M, Sayyadi N, Rezaee R, Jonaidi-Jafari N, Beiraghdar F, Zamani A, Sahebkar A. Comparative trial of Aloe vera/olive oil combination cream versus phenytoin cream in the treatment of chronic wounds. J Wound Care 2015; 24:459-60, 462-5. [DOI: 10.12968/jowc.2015.24.10.459] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Y. Panahi
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - M. Izadi
- Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - N. Sayyadi
- Pharmaceutical Consultant, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - R. Rezaee
- Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - N. Jonaidi-Jafari
- Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - F. Beiraghdar
- Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - A. Zamani
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - A. Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Research Centre, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
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Kiani J, Hajilooi M, Furst D, Rezaei H, Shahryari-Hesami S, Kowsarifard S, Zamani A, Solgi G. HLA class II susceptibility pattern for type 1 diabetes (T1D) in an Iranian population. Int J Immunogenet 2015; 42:279-86. [DOI: 10.1111/iji.12216] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 04/28/2015] [Accepted: 05/25/2015] [Indexed: 01/09/2023]
Affiliation(s)
- J. Kiani
- Division of Endocrinology; Department of Internal Medicine; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - M. Hajilooi
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - D. Furst
- Department of Transplantation Immunology; Institute for Clinical Transfusion Medicine and Immunogenetics Ulm; University of Ulm & German Red Cross Blood Donor Services Baden-Württemberg-Hessia; Ulm Germany
| | - H. Rezaei
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - S. Shahryari-Hesami
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - S. Kowsarifard
- Division of Endocrinology; Department of Internal Medicine; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - A. Zamani
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - G. Solgi
- Department of Immunology; School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
- Psoriasis Research Center; Department of Dermatology; Farshchian Hospital; Hamadan University of Medical Sciences; Hamadan Iran
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Zahiroddin A, Zamani A, Faridhosseini F, Shahini N. Comparing the Efficacy of Bupropion and Amantadine On Sexual Dysfunction Induced by a Selective Serotonin Reuptake Inhibitor. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31245-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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23
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Haghnegahdar A, Khosrovpanah H, Andisheh-Tadbir A, Mortazavi G, Saeedi Moghadam M, Mortazavi SMJ, Zamani A, Haghani M, Shojaei Fard M, Parsaei H, Koohi O. Design and fabrication of helmholtz coils to study the effects of pulsed electromagnetic fields on the healing process in periodontitis: preliminary animal results. J Biomed Phys Eng 2014; 4:83-90. [PMID: 25505775 PMCID: PMC4258865] [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: 08/01/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND Effects of electromagnetic fields on healing have been investigated for centuries. Substantial data indicate that exposure to electromagnetic field can lead to enhanced healing in both soft and hard tissues. Helmholtz coils are devices that generate pulsed electromagnetic fields (PEMF). Objective : In this work, a pair of Helmholtz coils for enhancing the healing process in periodontitis was designed and fabricated. METHOD An identical pair of square Helmholtz coils generated the 50 Hz magnetic field. This device was made up of two parallel coaxial circular coils (100 turns in each loop, wound in series) which were separated from each other by a distance equal to the radius of one coil (12.5 cm). The windings of our Helmholtz coil was made of standard 0.95mm wire to provide the maximum possible current. The coil was powered by a function generator. RESULTS The Helmholtz Coils generated a uniform magnetic field between its coils. The magnetic field strength at the center of the space between two coils was 97.6 μT. Preliminary biological studies performed on rats show that exposure of laboratory animals to pulsed electromagnetic fields enhanced the healing of periodontitis. CONCLUSION Exposure to PEMFs can lead to stimulatory physiological effects on cells and tissues such as enhanced healing of periodontitis.
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Affiliation(s)
- A Haghnegahdar
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - H Khosrovpanah
- Department of Periodontology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A Andisheh-Tadbir
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gh Mortazavi
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Saeedi Moghadam
- Ionizing and Non-ionizing Radiation Protection Research Centre (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - SMJ Mortazavi
- Ionizing and Non-ionizing Radiation Protection Research Centre (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
- Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A Zamani
- Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Haghani
- Ionizing and Non-ionizing Radiation Protection Research Centre (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Shojaei Fard
- Ionizing and Non-ionizing Radiation Protection Research Centre (INIRPRC), Shiraz University of Medical Sciences, Shiraz, Iran
| | - H Parsaei
- Medical Physics and Medical Engineering Department, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - O Koohi
- Animal laboratory, Shiraz University of Medical Sciences, Shiraz, Iran
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Nadi E, Arjipour M, Sharifi S, Zamani A. Assay of IL-22 and IL-25 in serum, whole blood, and peripheral blood mononuclear cell cultures of patients with severe asthma. Allergol Immunopathol (Madr) 2014; 42:402-6. [PMID: 24094445 DOI: 10.1016/j.aller.2013.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 02/25/2013] [Accepted: 03/15/2013] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although some studies show that IL-22 and IL-25 play critical roles in the pathogenesis of asthma, little is known about the systemic production of these cytokines. The aim of this study was to assay IL-22 and IL-25 in serum, in mitogen-activated whole blood (WB), and in mitogen-activated peripheral blood mononuclear cell (PBMC) cultures of patients with severe asthma. METHODS In this cross-sectional study, a questionnaire was prepared to determine the severity of asthma. Through the questionnaire, information including clinical signs, clinical symptoms, and past medical history were acquired. Information collected allowed all patients who were active or ex-smokers to be excluded. A trained observer assessed airway reversibility, peak flowmetry, and spirometry in the remaining patients. Twenty-one patients and simultaneously, twenty age- and sex-matched healthy controls were selected. Sterile blood (10ml) was taken from each study participant. Sera were isolated and anticoagulant blood used for WB and PBMC cultures and haematological tests. Phytohaemagglutinin and lipopolysaccharide (LPS) were used to activate WB and PBMC. The data from these two groups were compared using Student's t-test. RESULTS Although the total white blood cell count was elevated in the asthmatic group, other haematological indices, including IL-22 and IL-25 levels in the asthmatic group were not significantly (p>0.05) different from controls. CONCLUSIONS The levels of IL-22 and IL-25 in patients with severe asthma are no higher than those of non-asthmatic individuals. Any major role for IL-22 and IL-25 in severe asthma is likely to be localised to the lungs and bronchial tissues.
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Affiliation(s)
- E Nadi
- Department of Internal Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - M Arjipour
- Department of Internal Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - S Sharifi
- Research Institute, Hamadan University of Medical Sciences, Hamadan, Iran
| | - A Zamani
- Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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Geredeli C, Artac M, Yildirim S, Dede I, Inal A, Guler T, Boruban M, Zamani A, Bozcuk H, Demirkazik A. P0146 The prognostic role of XRCC1, ERCC1, ERCC2, and TP53 single nucleotide polymorphisms in resected non-small-cell lung cancer. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.190] [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: 11/25/2022]
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26
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Yousefimashouf R, Zamani A, Alikhani M. P157 Detection of magA gene in Klebsiella species isolated from clinical samples in Hamadan by PCR. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70400-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: 11/29/2022]
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Behnamfar F, Mousavi A, Rezapourian P, Zamani A. Placental site trophoblastic tumor, report of a case with unusual presentation. Placenta 2013; 34:460-2. [PMID: 23478075 DOI: 10.1016/j.placenta.2013.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 10/27/2022]
Abstract
Placental site trophoblastic tumor (PSTT) is the rarest type of gestational trophoblastic tumors. Common presentation is irregular vaginal bleeding. A 26-year-old G1P1 woman presented with 15 month amenorrhea, a large uterine mass and plateau low level of serum human chorionic gonadotropin (hCG) which raised the possibility of PSTT. Since whole myometrium had been substituted with the large tumoral mass, hysterectomy was considered despite the young age of the patient. The patient has been in remission 36 months postoperatively without receiving any adjuvant treatment. It seems that plateau low levels of hCG in the presence of amenorrhea should prompt the possibility of PSTT.
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Affiliation(s)
- F Behnamfar
- Esfahan University of Medical Sciences, Esfahan, Iran; Beheshti Hospital, Motahari Street, Esfahan, Iran.
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Loghmani A, Jafari N, Zamani A, Farajzadegan Z, Bahrami F, Emami H. Abstract P2-12-10: Psycho-spiritual therapy for improving the quality of life and spiritual well-being of women with breast cancer. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p2-12-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Objective: Psychological distress and morbidity are common consequences of diagnosis and treatment of breast cancer and associated with poor quality of life (QOL). Among several approaches, spirituality has been shown to be significantly associated with improving the quality of life of these patients. The aim of this study was to assess the role of psycho-spiritual therapy intervention in improving the quality of life and spiritual well-being of patients with breast cancer.
Methods: This was a randomized controlled trial study which was conducted in the Breast Cancer Research Center, St. S. Al-Shohada hospital, Isfahan, Iran. Sixty-eight patients with breast cancer were randomized to either psycho-spiritual therapy intervention group or control group who received routine management and educational programs. Before and after 6 weeks of psycho-spiritual therapy sessions, the quality of life was evaluated using Cancer quality-of-life questionnaire (QLQ-C30) and its supplementary breast cancer questionnaire (QLQ-BR23) and Spiritual well-being was measured using the Functional Assessment of Chronic Illness Therapy Spiritual Well-being scale (FACIT-Sp12). Multivariate, repeated-measures ANOVA, T-test and Paired T-test were used for analysis using Predictive Analytic Soft Ware (PASW, version 18) for windows.
Results: In all sixty five patients actually completed the six-week intervention and were evaluated for the outcomes. The mean Global health status score/QOL reached from 44.37 (SD: 13.03) to 68.63 (SD: 10.86), (p < 0.001), (Cohen's d effect size: 2.16, 95% CI: 1.56–2.78). There was a statistically significant difference in all functional scales of QLQ-C30 (p < 0.05) as well as spiritual well-being after intervention. (p = 0.02)
Conclusions: The results of this trial showed that the psycho-spiritual therapy program can improve the spiritual well-being and QOL of women with breast cancer. This program, with its ease of implementation and home practice, could be adopted in comprehensive care programs for women with breast cancer.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P2-12-10.
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Affiliation(s)
- A Loghmani
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
| | - N Jafari
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
| | - A Zamani
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
| | - Z Farajzadegan
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
| | - F Bahrami
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
| | - H Emami
- Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran; University of Isfahan, Islamic Republic of Iran
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Abolfathi M, Hajimoradloo A, Ghorbani R, Zamani A. Compensatory growth in juvenile roach Rutilus caspicus: effect of starvation and re-feeding on growth and digestive surface area. J Fish Biol 2012; 81:1880-1890. [PMID: 23130689 DOI: 10.1111/j.1095-8649.2012.03407.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The aim of this study was to investigate compensatory growth in juvenile Rutilus caspicus during starvation and re-feeding periods. The results confirmed the existence of compensatory growth in R. caspicus which depended on the duration of food deprivation. Complete compensatory growth occurred in the fish that were food deprived for at least 3 weeks. Starvation and re-feeding had no significant effect on the digestive somatic index and intestinal surface areas in the fish that were food deprived for 1 week, while they showed a significant decrease and increase, during starvation and re-feeding in the fish that were food deprived for 2 and 3 weeks. This knowledge may have application in aquaculture, as appropriate exploitation of compensatory growth can give increased growth rate and feeding efficiency.
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Affiliation(s)
- M Abolfathi
- Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
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Ghafari R, Baradari AG, Firouzian A, Nouraei M, Aarabi M, Zamani A, Zeydi AE. Cognitive deficit in first-time coronary artery bypass graft patients: a randomized clinical trial of lidocaine versus procaine hydrochloride. Perfusion 2012; 27:320-5. [DOI: 10.1177/0267659112446525] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction: Cognitive dysfunction increasingly has been recognized as a complication after cardiac surgery. Different methods have been considered for the reduction of cognitive dysfunction after cardiac surgery. One of these methods is by using lidocaine during surgery. The aim of this study was to determine the effects of adding lidocaine to the cardioplegia solution on cognitive impairment after coronary artery surgery. Design and methods: In a prospective, randomized, double-blind trial, 110 patients aged between 20-70 years, scheduled for elective CABG surgery using cardiopulmonary bypass, were recruited into the study. They were randomized into two groups who received either cardioplegia solution containing lidocaine 2 mg/kg or procaine hydrochloride 5 mg/kg. The neurocognitive test used in this study was the Mini Mental State Examination (MMSE) or Folstein test. The test was done on the day before and 10 days and 2 months after the operation. Results: In the procaine group, the total score after 10 days decreased significantly compared to the preoperative score (mean difference 0.68; 95% CI: 0.20 to 1.17, p=0.006). Comparison between mean differences after 10 and 60 days of operation between the lidocaine and procaine groups were statistically significant, p-value 0.017 and 0.013, respectively. There was no cognitive impairment in the lidocaine group, but, in the procaine group, four patients (7.7%) after 10 days and one patient (1.9%) after both 10 and 60 days had cognitive impairment, p=0.051. Conclusions: Administration of lidocaine compared to that of procaine through the cardioplegia solution had a better effect on cognitive function after coronary artery bypass graft surgery.
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Affiliation(s)
- R Ghafari
- Department of Cardiac Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - A Gholipour Baradari
- Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - A Firouzian
- Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M Nouraei
- Department of Cardiac Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - M Aarabi
- Department of Epidemiology, Cardiovascular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - A Zamani
- Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - A Emami Zeydi
- Department of Medical Surgical Nursing, Faculty of Nursing and Midwifery, Mazandaran University of Medical Sciences, Sari, Iran
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Aghabeigi N, Lindsey N, Zamani A, Shishaeyan B. Identification and characterization of anti-platelet antibodies in idiopathic thrombocytopenic purpura patients. Iran J Public Health 2012; 41:53-62. [PMID: 23113135 PMCID: PMC3481673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 01/12/2012] [Indexed: 11/27/2022]
Abstract
BACKGROUND The autoimmune disease known as Idiopathic (immune thrombocytopenic purpura thrombocytopenic purpura (ITP) is clinically defined by a low numbers of platelets in the circulation blood. This study aimed to isolate autoantibodies made against the platelet glycoproteins using platelets from healthy volunteers, to determine their specificity and further elucidate their effects on platelet function. METHODS This study used a phage display system to recognize Fab anti-platelet antibodies. Anti-platelet After isolation, the anti-platelet Fab-expressing phage was characterized by ELISA and Western blotting. The Fab-bearing phage pool obtained from five rounds of panning was analysed in order to determine its anti-platelet reactivity. Of the phage colonies obtained, 100 colonies of different sizes were randomly selected for reaction with whole platelets, using M13 phage as a negative control. RESULTS Twelve colonies of them had strong reactions against the whole platelet preparation, but only four colonies showed substantial reactivity against the lysed platelet preparation (lysate). Three of the four colonies showed three bands representing proteins with different molecular weights. The fourth colony showed only a single band. The final experiment to characterise the protein isolated from the phage library was a DNA gel agarose test. CONCLUSION Each colony showed a DNA band that corresponded with the molecular size marker for 5.4 kbase pairs, and this suggested the presence of heavy and light antibody chains in the phage.
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Affiliation(s)
- N Aghabeigi
- Dept. of Immunology& Hematology, Faculty of Medicine, Hamadan University of Medical Sciences and Health Services, Hamadan, Iran,Corresponding Author: E-mail address:
| | - N Lindsey
- Dept. of Biomedical Science, School of Life Science, University of Bradford, UK
| | - A Zamani
- Dept. of Immunology& Hematology, Faculty of Medicine, Hamadan University of Medical Sciences and Health Services, Hamadan, Iran
| | - B Shishaeyan
- Dept. of Immunology& Hematology, Faculty of Medicine, Hamadan University of Medical Sciences and Health Services, Hamadan, Iran
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Jafari N, Farajzadegan Z, Zamani A, Bahrami F, Emami H, Loghmani A. P-1149 - The effect of psycho-spiritual therapy for improving the quality of life of women with breast cancer: a randomized controlled trial. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)75316-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Shishebor Z, Soltani A, Zamani A. Asymptotic distribution for periodograms of infinite dimensional discrete time periodically correlated processes. J MULTIVARIATE ANAL 2011. [DOI: 10.1016/j.jmva.2011.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Soltani A, Shishebor Z, Zamani A. Inference on periodograms of infinite dimensional discrete time periodically correlated processes. J MULTIVARIATE ANAL 2010. [DOI: 10.1016/j.jmva.2009.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zamani A, Hajimoradloo A, Madani R, Farhangi M. Assessment of digestive enzymes activity during the fry development of the endangered Caspian brown trout Salmo caspius. J Fish Biol 2009; 75:932-937. [PMID: 20738590 DOI: 10.1111/j.1095-8649.2009.02348.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The study of digestive enzymes activity at Salmo caspius fry showed that enzymes were available at the moment of mouth opening on the first day post hatching (dph) and the activity of enzymes showed no significant difference from the hatching day 28 dph. An increased activity was seen between 32 and 43 dph and this activity was significantly higher than the activity during the first 28 days. In the primary stages after yolk sac resorption (43-58 dph), enzymes activity showed an increased profile, however none of them showed a significant difference between 43 and 58 dph.
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Affiliation(s)
- A Zamani
- Department of Fisheries of Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box 386 Gorgan, Iran.
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Alikhani M, Aslani M, Zavari A, Yousefi R, Zamani A. P121 Antibiotic resistance, HeLa-cell adherence and PCR analysis of enteroaggragative Escherichia coli (EAEC) clinical isolates. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70340-1] [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: 10/20/2022]
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Otroshy M, Zamani A, Khodambash M, Ebrahimi M, Struik P. Effect of Exogenous Hormones and Chilling on Dormancy Breaking of Seeds of Asafoetida (Ferula assafoetida L.). ACTA ACUST UNITED AC 2009. [DOI: 10.3923/rjss.2009.9.15] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Juvenile Rheumatoid Arthritis (JRA) is a disease of unknown etiology. A total of 50 patients with JRA who were hospitalized in the Pediatrics Rheumatology Ward of Imam Khomeini Hospital in Tehran during the years 2001-2002, were assessed serologically (IgM and IgG specific viral capsid antigens) for EBV infection and their response to therapy was studied. Minimum age of the patients was at least 6 months and mean age was 60.96 plus/minus 43.46 months. EBV infection was seen in 44 (88%) patients 24 of whom were girls and 20 boys. Ninety two percent of girls and 83% boys were infected with the virus. Ebstein barr virus (EBV) infection was seen in 33 cases, 6 cases, 4 cases and 1 case in the polyarticular, pauciarticular, systemic and spondylitis group, respectively. Fifty four percent of EBV-positive patients with JRA did not respond to the classic therapy. EBV virus is involved in the pathogenesis of JRA and patients with EBV are in greater risk of developing JRA.
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Affiliation(s)
- Y Aghighi
- Department of Pediatrics, Imam Khomeini Hospital, Keshavarz Blvd, Tehran, Iran
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Ganjali MR, Norouzi P, Faridbod F, Riahi S, Yaftian MR, Zamani A, Matt D. Highly selective and sensitive Th4+-PVC-based membrane sensor based on 2-(diphenylphosphorothioyl)-N′,N′-diphenylacetamide. J APPL ELECTROCHEM 2007. [DOI: 10.1007/s10800-007-9318-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ekramoddoullah AKM, Liu JJ, Zamani A. Cloning and Characterization of a Putative Antifungal Peptide Gene (Pm-AMP1) in Pinus monticola. Phytopathology 2006; 96:164-170. [PMID: 18943919 DOI: 10.1094/phyto-96-0164] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
ABSTRACT We have been working on proteins that are involved in the defense response of western white pine (WWP) (Pinus monitcola) to the blister rust fungus Cronartium ribicola. Our objective was to identify candidate genes that could be used for improving resistance of WWP to this rust pathogen. During proteomic analysis of bark proteins extracted from WWP trees exhibiting slow-canker-growth (SCG) resistance, a 10.6-kDa peptide, termed Pm-AMP1, was found to be enriched at the receding canker margin. The cDNA encoding this peptide was cloned and characterized. A BLASTX search revealed that the Pm-AMP1 encoded by its cDNA has a 50% homology with MiAMP1, a broad-spectrum antifungal protein isolated from Macadamia integrifolia. Based on the deduced amino acid sequence, an antibody was produced against the Pm-AMP1. Immunochemical quantification of the Pm-AMP1 in bark samples of susceptible WWP trees revealed this protein to be barely detectable in the cankered tissues, but occurring in higher concentrations in healthy tissues away from canker margins. Foliage of SCG-resistant trees contained higher concentrations of the Pm-AMP1 than foliage from susceptible cankered trees. Both wounding and methyl jasmonate treatment of WWP needles induced the expression of this protein, further supporting its putative role as a defense response protein.
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Yaftian M, Zamani A, Parinejad M. Facilitated Transport of Cadmium Ions from Hydrochloric Acid Solutions through a Liquid Membrane Containing Dicyclohexyl‐18‐Crown‐6 as Extractant‐Carrier. SEP SCI TECHNOL 2005. [DOI: 10.1080/01496390500285329] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nasernejad B, Zadeh TE, Pour BB, Bygi ME, Zamani A. Camparison for biosorption modeling of heavy metals (Cr (III), Cu (II), Zn (II)) adsorption from wastewater by carrot residues. Process Biochem 2005. [DOI: 10.1016/j.procbio.2004.06.010] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zamani A, Omrani GR, Lankarani KB. Hyperhomocysteinaemia, hyperlipidaemia and risk of venous thromboembolism in Shiraz. East Mediterr Health J 2003; 9:935-43. [PMID: 16450523 DOI: pmid/16450523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To assess the risk of venous thromboembolism (VTE) associated with hyperhomocysteinaemia (hyper-Hcy) and hyperlipidaemia, we performed a case-control study. Fasting total homocysteine (Hcy), triglyceride and cholesterol levels were assessed in 43 patients with VTE and 43 controls. Mean Hcy level was significantly higher in the test group. Odds ratio (OR) for VTE in patients with hyper-Hcy was 2.7, with the association stronger in women and those under 50. The OR for those with both hypertriglyceridaemia and hypercholesterolaemia was significantly greater in those under 50. Increased risk for venous thrombosis was found among those under 50 having both lipid abnormalities.
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Affiliation(s)
- A Zamani
- Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran
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Zamani A, Omrani GR, Lankarani KB. Hyperhomocysteinaemia, hyperlipidaemia and risk of venous thromboembolism in Shiraz. East Mediterr Health J 2003. [DOI: 10.26719/2003.9.5-6.935] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To assess the risk of venous thromboembolism [VTE] associated with hyperhomocysteinaemia [hyper-Hcy] and hyperlipidaemia, we performed a case-control study. Fasting total homocysteine [Hcy], triglyceride and cholesterol levels were assessed in 43 patients with VTE and 43 controls. Mean Hcy level was significantly higher in the test group. Odds ratio [OR] for VTE in patients with hyper-Hcy was 2.7, with the association stronger in women and those under 50. The OR for those with both hypertriglyceridaemia and hypercholesterolaemia was significantly greater in those under 50. Increased risk for venous thrombosis was found among those under 50 having both lipid abnormalities
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Sirisena ND, Njoku MO, Idoko JA, Isamade E, Barau C, Jelpe D, Zamani A, Otowo S. Carriage rate of hepatitis-B surface antigen (HBsAg) in an urban community in Jos, Plateau State, Nigeria. Niger Postgrad Med J 2002; 9:7-10. [PMID: 11932753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
The carriage rate of Hepatitis-B surface antigen (HBsAg) in an urban community in Jos, the Plateau State capital, was studied to obtain the pattern of Hepatitis-beta virus (HBV) spread within the community. HBsAg screening was performed on a consecutive sample of 524 apparently healthy individuals (293 males and 231 females) aged 15-65 years who voluntarily turned up for the survey. Fifty-four (10.3%) were HBsAg positive by ELISA. The carriage rate in females 30/231 (13.0%) was significantly higher than in the males 24/293 (8.2%) (p<0.05). In relation to age, 14/144 (9.7%) were aged <20 years, 11/121 (9.1%) were 21-30 years, 7/115 (6.1%) were 31-40 years, 14/89 (15.7%) were 41-50 years, 2/27 (7.4%) were 51-60 years and 6/28 (21.4%) were >61 years. In relation to marital status, carriage rate was highest among the divorced/widowed group (12.5%) followed by the married group (10.6%). Carriage rates in relation to occupation showed that infection was highest among traders (13.7%) and students (13.2%). The survey therefore confirms the endemicity of HBV infection in Jos and describes the groups that are at risk. This calls for health education of the general population on preventive measures to check the spread of the virus in the community.
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Affiliation(s)
- N D Sirisena
- Department of Medicine, Jos University Teaching Hospital, P. M. B. 2076, Jos, Plateau State, Nigeria
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Zamani A. MRA of intracranial aneurysms. Clin Neurosci 1997; 4:123-9. [PMID: 9186031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Most intracranial aneurysms are located in the circle of Willis. They occur in 5-6% of the general population. Patients with intracranial aneurysm either present catastrophically with rupture of the aneurysm have aneurysms that are incidentally discovered. Prognosis is drastically different in each case, with a greater than 50% incidence of death if there is a rupture of the aneurysm. On the other hand, the surgical or endovascular mortality following treatment of an unruptured aneurysm is minimal, with good patient neurological outcome. In the appropriate clinical setting, it is important to find a screening study that can detect a cerebral aneurysm so that definitive cerebral angiography can be performed. The combination of magnetic resonance imaging (MRI) and magnetic resonance angiogram (MRA) can detect an aneurysm in 60-85% of cases. This screening test adds a few minutes of scanning time to the average MR examination. Magnetic resonance angiography techniques continue to improve with better gradients, enhanced sequences to detect flow and reduce flow-related artifacts, shorter echo times with possible use of echo-planar (short scanning time) techniques, and improved imaging matrix, and they may, in conjunction with computed tomographic angiography (CTA), become a reliable non-invasive technique for detection of intracranial aneurysm.
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Affiliation(s)
- A Zamani
- Brigham and Women's Hospital, Department of Radiology, Boston, MA 02115, USA
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Donnelly SC, MacGregor I, Zamani A, Gordon MW, Robertson CE, Steedman DJ, Little K, Haslett C. Plasma elastase levels and the development of the adult respiratory distress syndrome. Am J Respir Crit Care Med 1995; 151:1428-33. [PMID: 7735596 DOI: 10.1164/ajrccm.151.5.7735596] [Citation(s) in RCA: 125] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Inflammatory cells, particularly neutrophil granulocytes, have been implicated in the pathogenesis of the adult respiratory distress syndrome (ARDS). In this study, we investigated whether a relationship exists between neutrophil elastase in the plasma of multiple-trauma patients on initial hospital presentation and the subsequent development of lung injury and ARDS. Sixty-one multiple-trauma patients were enrolled prospectively. Neutrophil elastase was measured by a specific radioimmunoassay, and analysis was performed by nonparametric statistical methods. A highly significantly elevated plasma elastase level was found in patients who progressed to ARDS (median 217 ng/ml, range 127 to 480) (n = 8) compared with those who did not (median 117 ng/ml, range 21.4 to 685) (n = 53) (p = 0.009). Significant correlation was found between initial elastase values and subsequent requirement for mechanical ventilation (p = 0.01), lowest arterial oxygen saturation/oxygen supplementation recorded (p = 0.003), and organ failure score (p = 0.006). This study shows that within minutes of the initiating trauma event, there is evidence of enhanced neutrophil degranulation as manifested by elevated levels of immunoreactive neutrophil elastase in the peripheral blood. The level of this enzyme correlates with the degree of subsequent lung injury and ARDS. These findings reinforce the importance of neutrophils and their secretory products in early ARDS disease pathogenesis.
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Affiliation(s)
- S C Donnelly
- Respiratory Medicine Unit, Rayne Laboratory, University of Edinburgh, Scotland
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