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Nieves O, Ortiz de Zárate D, Aznar E, Caballos I, Garrido E, Martínez-Máñez R, Dortu F, Bernier D, Mengual-Chuliá B, López-Labrador FX, Sloth JJ, Loeschner K, Duedahl-Olesen L, Prado N, Hervello M, Menéndez A, Gransee R, Klotzbuecher T, Gonçalves MC, Zare F, Fuentes López A, Fernández Segovia I, Baviera JMB, Salcedo J, Recuero S, Simón S, Fernández Blanco A, Peransi S, Gómez-Gómez M, Griol A. Development of Photonic Multi-Sensing Systems Based on Molecular Gates Biorecognition and Plasmonic Sensors: The PHOTONGATE Project. Sensors (Basel) 2023; 23:8548. [PMID: 37896641 PMCID: PMC10611383 DOI: 10.3390/s23208548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
This paper presents the concept of a novel adaptable sensing solution currently being developed under the EU Commission-founded PHOTONGATE project. This concept will allow for the quantification of multiple analytes of the same or different nature (chemicals, metals, bacteria, etc.) in a single test with levels of sensitivity and selectivity at/or over those offered by current solutions. PHOTONGATE relies on two core technologies: a biochemical technology (molecular gates), which will confer the specificity and, therefore, the capability to be adaptable to the analyte of interest, and which, combined with porous substrates, will increase the sensitivity, and a photonic technology based on localized surface plasmonic resonance (LSPR) structures that serve as transducers for light interaction. Both technologies are in the micron range, facilitating the integration of multiple sensors within a small area (mm2). The concept will be developed for its application in health diagnosis and food safety sectors. It is thought of as an easy-to-use modular concept, which will consist of the sensing module, mainly of a microfluidics cartridge that will house the photonic sensor, and a platform for fluidic handling, optical interrogation, and signal processing. The platform will include a new optical concept, which is fully European Union Made, avoiding optical fibers and expensive optical components.
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Affiliation(s)
- Oscar Nieves
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - David Ortiz de Zárate
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - Elena Aznar
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Isabel Caballos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Eva Garrido
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain; (E.A.); (I.C.); (E.G.); (R.M.-M.)
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Instituto de Investigación Sanitaria La Fe (IISLAFE) Avenida Fernando Abril Martorell 106, 46026 Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 46022 Valencia, Spain
| | - Fabian Dortu
- Multitel, Parc Initialis 2, Rue Pierre et Marie Curie, 7000 Mons, Belgium; (F.D.); (D.B.)
| | - Damien Bernier
- Multitel, Parc Initialis 2, Rue Pierre et Marie Curie, 7000 Mons, Belgium; (F.D.); (D.B.)
| | - Beatriz Mengual-Chuliá
- Virology Laboratory, Genomics and Health Area, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana, FISABIO-Public Health, Generalitat Valenciana, 46020 Valencia, Spain; (B.M.-C.); (F.X.L.-L.)
| | - F. Xavier López-Labrador
- Virology Laboratory, Genomics and Health Area, Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana, FISABIO-Public Health, Generalitat Valenciana, 46020 Valencia, Spain; (B.M.-C.); (F.X.L.-L.)
- CIBER de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Departament de Microbiologia i Ecologia, Facultat de Medicina, Universitat de València, 46010 Valencia, Spain
| | - Jens J. Sloth
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Katrin Loeschner
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Lene Duedahl-Olesen
- National Food Institute, Technical University of Denmark, Kemitorvet B201, DK-2800 KGS. Lyngby, Denmark; (J.J.S.); (K.L.); (L.D.-O.)
| | - Natalia Prado
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Martín Hervello
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Armando Menéndez
- Asociación de Investigación de Industrias Cárnicas del Principado de Asturias (ASINCAR), Polígono La Barreda, Calle Solelleros 5, 33180 Noreña, Spain; (N.P.); (M.H.); (A.M.)
| | - Rainer Gransee
- Fraunhofer IMM, Carl-Zeiss-Str. 18-20, 55129 Mainz, Germany; (R.G.); (T.K.)
| | | | - M. Clara Gonçalves
- Instituto Superior Técnico, CQE, Avenida Rovisco País 1, 1049 001 Lisboa, Portugal; (M.C.G.); (F.Z.)
| | - Fahimeh Zare
- Instituto Superior Técnico, CQE, Avenida Rovisco País 1, 1049 001 Lisboa, Portugal; (M.C.G.); (F.Z.)
| | - Ana Fuentes López
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Isabel Fernández Segovia
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Jose M. Barat Baviera
- Departamento de Tecnología de Alimentos, Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural, Universitat Politècnica de València, 46022 Valencia, Spain; (A.F.L.); (J.M.B.B.)
| | - Jaime Salcedo
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Sara Recuero
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Santiago Simón
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Ana Fernández Blanco
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Sergio Peransi
- Lumensia Sensors S.L., Camí de Vera s/n, 46020 Valencia, Spain; (J.S.); (S.R.); (A.F.B.)
| | - Maribel Gómez-Gómez
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
| | - Amadeu Griol
- Nanophotonics Technology Center, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain; (O.N.); (D.O.d.Z.)
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Zare F, Gonçalves SB, Faria M, Gonçalves MC. Improving Structural Homogeneity, Hydraulic Permeability, and Mechanical Performance of Asymmetric Monophasic Cellulose Acetate/Silica Membranes: Spinodal Decomposition Mix. Membranes (Basel) 2023; 13:346. [PMID: 36984734 PMCID: PMC10059883 DOI: 10.3390/membranes13030346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
In this paper, we propose an optimized protocol to synthesize reproducible, accurate, sustainable integrally skinned monophasic hybrid cellulose acetate/silica membranes for ultrafiltration. Eight different membrane compositions were studied, divided into two series, one and two, each composed of four membranes. The amount of silica increased from 0 wt.% up to 30 wt.% (with increments of 10 wt.%) in each series, while the solvent composition was kept constant within each series (formamide/acetone ratio equals 0.57 wt.% in series one and 0.73 wt.% in series two). The morphology of the membranes was analyzed by scanning electron microscopy and the chemical composition by Fourier transform infrared spectroscopy, in attenuated total reflection mode (FTIR-ATR). Mechanical tensile properties were determined using tensile tests, and a retest trial was performed to assess mechanical properties variability over different membrane batches. The hydraulic permeability of the membranes was evaluated by measuring pure water fluxes following membrane compaction. The membranes in series two produced with a higher formamide/acetone solvent ratio led to thicker membranes with higher hydraulic permeability values (47.2-26.39 kg·h-1·m-2·bar-1) than for the membranes in series one (40.01-19.4 kg·h-1·m-2·bar-1). Results obtained from the FTIR-ATR spectra suggest the presence of micro/nano-silica clusters in the hybrid membranes of series one, also exhibiting higher Young's modulus values than the hybrid membranes in series two.
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Affiliation(s)
- Fahimeh Zare
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
- Centro de Química Estrutural (CQE), 1049-001 Lisboa, Portugal
| | - Sérgio B. Gonçalves
- IDMEC, Instituto de Engenharia Mecânica, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Mónica Faria
- Center of Physics and Engineering of Advanced Materials (CeFEMA), Laboratory for Physics of Materials and Emerging Technologies (LaPMET), Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Maria Clara Gonçalves
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
- Centro de Química Estrutural (CQE), 1049-001 Lisboa, Portugal
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Zare F, Janeca A, Jokar SM, Faria M, Gonçalves MC. Interaction of Human Serum Albumin with Uremic Toxins: The Need of New Strategies Aiming at Uremic Toxins Removal. Membranes 2022; 12:membranes12030261. [PMID: 35323736 PMCID: PMC8953794 DOI: 10.3390/membranes12030261] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/04/2022]
Abstract
Chronic kidney disease (CKD) is acknowledged worldwide to be a grave threat to public health, with the number of US end-stage kidney disease (ESKD) patients increasing steeply from 10,000 in 1973 to 703,243 in 2015. Protein-bound uremic toxins (PBUTs) are excreted by renal tubular secretion in healthy humans, but hardly removed by traditional haemodialysis (HD) in ESKD patients. The accumulation of these toxins is a major contributor to these sufferers’ morbidity and mortality. As a result, some improvements to dialytic removal have been proposed, each with their own upsides and drawbacks. Longer dialysis sessions and hemodiafiltration, though, have not performed especially well, while larger dialyzers, coupled with a higher dialysate flow, proved to have some efficiency in indoxyl sulfate (IS) clearance, but with reduced impact on patients’ quality of life. More efficient in removing PBUTs was fractionated plasma separation and adsorption, but the risk of occlusive thrombosis was worryingly high. A promising technique for the removal of PBUTs is binding competition, which holds great hopes for future HD. This short review starts by presenting the PBUTs chemistry with emphasis on the chemical interactions with the transport protein, human serum albumin (HSA). Recent membrane-based strategies targeting PBUTs removal are also presented, and their efficiency is discussed.
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Affiliation(s)
- Fahimeh Zare
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
- Centro de Química Estrutural (CQE), 1049-001 Lisboa, Portugal
| | - Adriana Janeca
- Center of Physics and Engineering of Advanced Materials (CeFEMA), Laboratory for Physics of Materials and Emerging Technologies (LaPMET), Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal; (A.J.); (M.F.)
| | - Seyyed M. Jokar
- Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz 71557-13876, Iran;
| | - Mónica Faria
- Center of Physics and Engineering of Advanced Materials (CeFEMA), Laboratory for Physics of Materials and Emerging Technologies (LaPMET), Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal; (A.J.); (M.F.)
| | - Maria Clara Gonçalves
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
- Centro de Química Estrutural (CQE), 1049-001 Lisboa, Portugal
- Correspondence:
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Ghorbani A, Zare F, Sazegari S, Afsharifar A, Eskandari MH, Pormohammad A. Development of a novel platform of virus-like particle (VLP)-based vaccine against COVID-19 by exposing epitopes: an immunoinformatics approach. New Microbes New Infect 2020; 38:100786. [PMID: 33072338 PMCID: PMC7556220 DOI: 10.1016/j.nmni.2020.100786] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/11/2022] Open
Abstract
The emergence of a rapidly spreading and highly infectious coronavirus disease 2019 (COVID-19) outbreak by a novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused a global pandemic with unprecedented social and economic dimensions. Therefore, the development of effective strategies is urgent to control the COVID-19 outbreak. According to recent investigations, cell entry of coronaviruses relies on binding of the viral spike glycoprotein to the host cellular receptors. Therefore, the present study aimed to predict immunogenic epitopes in silico by analysing the spike protein. In parallel, by screening the immunogenic SARS-CoV-2 spike-derived epitopes provided in the literature, we chose a set of epitopes that we believed would induce immunogenic response. Next, provided with the epitopes selected by using both approaches, we performed immunoinformatic analysis that mapped identically to the antigen regions and antigenic properties. Finally, after selecting a screened set of epitopes, we designed a novel virus-like particle vaccine optimized to be produced in plants by using molecular farming biotechnology techniques. Our assay may be used as a starting point for guiding experimental efforts towards the development of a vaccine against SARS-CoV-2.
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Affiliation(s)
- A Ghorbani
- Plant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran
| | - F Zare
- Plant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran
| | - S Sazegari
- Institute of Biotechnology, College of Agriculture, Shiraz University, Shiraz, Iran
| | - A Afsharifar
- Plant Virology Research Center, College of Agriculture, Shiraz University, Shiraz, Iran
| | - M H Eskandari
- Department of Food Science and Technology, College of Agriculture, Shiraz University, Shiraz, Iran
| | - A Pormohammad
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Rahbar Layegh E, Fadaei Fathabadi F, Lotfinia M, Zare F, Mohammadi Tofigh A, Abrishami S, Piryaei A. Photobiomodulation therapy improves the growth factor and cytokine secretory profile in human type 2 diabetic fibroblasts. J Photochem Photobiol B 2020; 210:111962. [PMID: 32712344 DOI: 10.1016/j.jphotobiol.2020.111962] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 01/13/2023]
Abstract
Impaired wound healing is a common complication of diabetes mellitus (DM) and the underlying mechanism of this impairment is still unclear. Fibroblast, as the main reconstructing cell, secretes some critical growth factors and cytokine contributing to wound healing. It is well known that DM alters the behavior of these cells and photobiomodulation therapy (PBMT) compensates some impairments in diabetic fibroblasts. Therefore, the aim of the present study was to demonstrate the impact of diabetes and the role of PBMT through low level laser irradiation on secretory profile of human diabetic fibroblasts. Primary human dermal fibroblasts from normal (HDFs) and diabetic (DHDFs) donors were harvested. For PBMT, the DHDFs were irradiated with a Helium-Neon laser at 632.8 nm wavelength and energy density of 0.5 J/cm2, as laser treated group (LT-DHDFs). Next, some cellular behaviors and secretory profiling array for 60 growth factors/cytokines were investigated in LT-DHDFs and then compared with those of controls. The data showed that the PBMT could compensate such impairments occurred in DHDFs in terms of viability, proliferation, and migration. Furthermore, considering our novel findings, out of those 20 growth factors/cytokines involved in cell proliferation, immune system regulation, and cell-cell communication pathways, which significantly decreased in DHDF as compared with HDFs, the PBMT could compensate seven in LT-DHDFs as compared with DHDFs. The seven growth factor/cytokines, which are mainly involved in cell-cell communication, positive regulation of cell proliferation, and chemokine mediated pathway included BDNF, Eotaxin-3, FGF6, FGF7, Fractalkine, fit-3ligand, and GCP-2. Therefore, it is suggested that scrutinizing these differentially secreted molecules and the impaired pathways in DHDFs, in combination with those compensated in LT-DHDFs, could raise our knowledge to manage diabetic ulcer through a feasible and cost effective intervention, specifically PBMT.
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Affiliation(s)
- E Rahbar Layegh
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - F Fadaei Fathabadi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - M Lotfinia
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran; Core Research Lab, Kashan University of Medical Sciences, Kashan, Iran
| | - F Zare
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A Mohammadi Tofigh
- Department of General Surgery, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Abrishami
- Department of Cardiovascular Surgery, Imam Khomeini Hospital Complex, Tehran Iniversity Medical Center, Tehran, Iran
| | - A Piryaei
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Khosravi A, Chaman R, Rohani-Rasaf M, Zare F, Mehravaran S, Emamian MH. The basic reproduction number and prediction of the epidemic size of the novel coronavirus (COVID-19) in Shahroud, Iran. Epidemiol Infect 2020; 148:e115. [PMID: 32517845 PMCID: PMC7322167 DOI: 10.1017/s0950268820001247] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/19/2020] [Accepted: 06/04/2020] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to estimate the basic reproduction number (R0) of COVID-19 in the early stage of the epidemic and predict the expected number of new cases in Shahroud in Northeastern Iran. The R0 of COVID-19 was estimated using the serial interval distribution and the number of incidence cases. The 30-day probable incidence and cumulative incidence were predicted using the assumption that daily incidence follows a Poisson distribution determined by daily infectiousness. Data analysis was done using 'earlyR' and 'projections' packages in R software. The maximum-likelihood value of R0 was 2.7 (95% confidence interval (CI): 2.1-3.4) for the COVID-19 epidemic in the early 14 days and decreased to 1.13 (95% CI 1.03-1.25) by the end of day 42. The expected average number of new cases in Shahroud was 9.0 ± 3.8 cases/day, which means an estimated total of 271 (95% CI: 178-383) new cases for the period between 02 April to 03 May 2020. By day 67 (27 April), the effective reproduction number (Rt), which had a descending trend and was around 1, reduced to 0.70. Based on the Rt for the last 21 days (days 46-67 of the epidemic), the prediction for 27 April to 26 May is a mean daily cases of 2.9 ± 2.0 with 87 (48-136) new cases. In order to maintain R below 1, we strongly recommend enforcing and continuing the current preventive measures, restricting travel and providing screening tests for a larger proportion of the population.
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Affiliation(s)
- A. Khosravi
- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - R. Chaman
- Department of Epidemiology, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
| | - M. Rohani-Rasaf
- Department of Epidemiology, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
| | - F. Zare
- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
| | - S. Mehravaran
- ASCEND Center for Biomedical Research, Morgan State University, Baltimore, USA
| | - M. H. Emamian
- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
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Zare F, Jannesar R, Ghaedi M, Tayebi L. Dispersive liquid-liquid microextraction based on the solidification of floating organic droplets for preconcentration of amino acids in human plasma samples. Sep Sci plus 2018. [DOI: 10.1002/sscp.201800075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fahimeh Zare
- Department of Chemistry, Faculty of Sciences; Yasouj University; Yasouj IR Iran
- Dena Pathobiology Laboratory; Yasouj IR Iran
| | - Ramin Jannesar
- Dena Pathobiology Laboratory; Yasouj IR Iran
- Department of Pathology; Yasuj University of Medical Sciences; Yasouj IR Iran
| | - Mehrorang Ghaedi
- Department of Chemistry, Faculty of Sciences; Yasouj University; Yasouj IR Iran
| | - Lobat Tayebi
- Department of Engineering Science; University of Oxford; Oxford OX1 3PJ UK
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Zare F, Jannesar R, Purkait MK, Ghaedi M. Ultrasound-assisted dispersive micro-solid-phase extraction using hydrophobic thiolated ionic liquids immobilized on gold nanoparticles for the preconcentration and determination of amino acids in human plasma samples. Sep Sci plus 2018. [DOI: 10.1002/sscp.201800029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fahimeh Zare
- Department of Chemistry; Faculty of Sciences; Yasouj University; Yasouj Iran
| | | | - M. K. Purkait
- Department of Chemical Engineering; Indian Institute of Technology Guwahati; Guwahati Assam India
| | - Mehrorang Ghaedi
- Department of Chemistry; Faculty of Sciences; Yasouj University; Yasouj Iran
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Zare F, Razmi M. Ultrasound-assisted low-density-solvent-based solvent-demulsified dispersive liquid-liquid microextraction for the quantification of amino acids in biological samples. Sep Sci plus 2018. [DOI: 10.1002/sscp.201700032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fahimeh Zare
- Young Researchers and Elite Club, Marvdasht Branch; Islamic Azad University; Marvdasht Iran
| | - Mahdi Razmi
- Young Researchers and Elite Club, Marvdasht Branch; Islamic Azad University; Marvdasht Iran
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Pezeshkpour V, Khosravani SA, Ghaedi M, Dashtian K, Zare F, Sharifi A, Jannesar R, Zoladl M. Ultrasound assisted extraction of phenolic acids from broccoli vegetable and using sonochemistry for preparation of MOF-5 nanocubes: Comparative study based on micro-dilution broth and plate count method for synergism antibacterial effect. Ultrason Sonochem 2018; 40:1031-1038. [PMID: 28946400 DOI: 10.1016/j.ultsonch.2017.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
The aim of this work was comparison study of dilution and plating method for evaluation of the synergism effect of metal-organic framework nanocubes (MOF-5-NCs) and broccoli extract (Brassica oleracea) on antibacterial activity of standard and clinical Pseudomonas aeruginosa strains. For this purpose, sonochemical synthesis of MOF-5-NCs was performed and it was characterized using XRD, FT-IR, FESEM and EDS techniques. Maceration extraction (ME) and ultrasound assisted extraction (UAE) methods in three different solvents were prepared and applicability of their extracts were compared in some cases such as radical scavenging and antioxidant activity. The HPLC/UV analysis was applied for separation, identification and evaluation of phenolic acids in prepared broccoli extracts. Then, antimicrobial activity of MOF-5NCs and broccoli extract against gram-negative bacteria, Pseudomonas aeruginosa was evaluated by detection of minimal inhibition concentration (MIC), minimal bactericidal concentration (MBC) and zone of inhibition (ZOI). The results of in vitro assays showed that dilution method due to flase estimation of 4% viability percentage which is not logic by consideration of MBC well could not be able to estimate MBC. Therefore, plate count method was performed for precise calculation of MBC. MIC of broccoli extract and MOF-5-NCs on Pseudomonas aeruginosa strains were 7.81mgmL-1 and 3.13mgmL-1, respectively.
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Affiliation(s)
- Vahid Pezeshkpour
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran; Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran
| | | | - Mehrorang Ghaedi
- Department of Chemistry, Yasuj University, Yasuj 75918-74831, Iran; Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran.
| | - Kheibar Dashtian
- Department of Chemistry, Yasuj University, Yasuj 75918-74831, Iran; Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran
| | - Fahimeh Zare
- Department of Chemistry, Yasuj University, Yasuj 75918-74831, Iran; Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran
| | - Asghar Sharifi
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ramin Jannesar
- Department of Pathology, Yasuj University of Medical Sciences, Yasuj, Iran; Department of Biotechnology and Microbial Nanotechnology, Dena Pathobiology Laboratory, Yasuj, Iran
| | - Mohammad Zoladl
- Social Determinants of Health Research Centre, Yasuj University of Medical Sciences, Yasuj, Iran
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11
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Zare F, Ghaedi M, Jannesar R, Tayebi L. Switchable polarity solvents for preconcentration and simultaneous determination of amino acids in human plasma samples. NEW J CHEM 2018. [DOI: 10.1039/c7nj04576j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The application of a mixture of amidine and alcohol as a switchable polarity solvent for the microextraction of 19 amino acids in biological samples.
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Affiliation(s)
- Fahimeh Zare
- Department of Chemistry
- Faculty of Sciences
- Yasouj University
- Yasouj
- Iran
| | - Mehrorang Ghaedi
- Department of Chemistry
- Faculty of Sciences
- Yasouj University
- Yasouj
- Iran
| | - Ramin Jannesar
- Dena Pathobiology Laboratory
- Yasouj
- Islamic Republic of Iran
- Department of Pathology
- Yasuj University of Medical Sciences
| | - Lobat Tayebi
- Marquette University School of Dentistry
- Milwaukee
- USA
- Department of Engineering Science
- University of Oxford
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12
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Alipanahpour Dil E, Ghaedi M, Asfaram A, Zare F, Mehrabi F, Sadeghfar F. Comparison between dispersive solid-phase and dispersive liquid-liquid microextraction combined with spectrophotometric determination of malachite green in water samples based on ultrasound-assisted and preconcentration under multi-variable experimental design optimization. Ultrason Sonochem 2017; 39:374-383. [PMID: 28732958 DOI: 10.1016/j.ultsonch.2017.05.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 05/05/2017] [Accepted: 05/06/2017] [Indexed: 06/07/2023]
Abstract
The ultrasound-assisted dispersive solid-phase microextraction (USA-DSPME) and the ultrasound-assisted dispersive liquid-liquid microextraction (USA-DLLME) developed for as an ultra preconcentration and/or technique for the determination of malachite green (MG) in water samples. Central composite design based on analysis of variance and desirability function guide finding best operational conditions and represent dependency of response to variables viz. volume of extraction, eluent and disperser solvent, pH, adsorbent mass and ultrasonication time has significant influence on methods efficiency. Optimum conditions was set for USA-DSPME as: 1mg CNTs/Zn:ZnO@Ni2P-NCs; 4min sonication time and 130μL eluent at pH 6.0. Meanwhile optimum point for USA-DLLME conditions were fixed at pH 6.0; 4min sonication time and 130, 650μL and 10mL of extraction solvent (CHCl3), disperser solvent (ethanol) and sample volume, respectively. Under the above specified best operational conditions, the enrichment factors for the USA-DSPME and USA-DLLME were 88.89 and 147.30, respectively. The methods has linear response in the range of 20.0 to 4000.0ngmL-1 with the correlation coefficients (r) between 0.9980 to 0.9995, while its reasonable detection limits viz. 1.386 to 2.348ngmL-1 and good relative standard deviations varied from 1.1% to 2.8% (n=10) candidate this method for successful monitoring of analyte from various media. The relative recoveries of the MG dye from water samples at spiking level of 500ngmL-1 were in the range between 94.50% and 98.86%. The proposed methods has been successfully applied to the analysis of the MG dye in water samples, and a satisfactory result was obtained.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Fahimeh Zare
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Fatemeh Mehrabi
- Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
| | - Fardin Sadeghfar
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
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13
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Dashamiri S, Ghaedi M, Asfaram A, Zare F, Wang S. Multi-response optimization of ultrasound assisted competitive adsorption of dyes onto Cu (OH) 2-nanoparticle loaded activated carbon: Central composite design. Ultrason Sonochem 2017; 34:343-353. [PMID: 27773255 DOI: 10.1016/j.ultsonch.2016.06.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/05/2016] [Accepted: 06/05/2016] [Indexed: 06/06/2023]
Abstract
This paper focuses on the development of an effective methodology to obtain the optimum removal conditions assisted by ultrasonics to maximize the simultaneous removal of dyes, eosin Y (EY), methylene blue (MB) and phenol red (PR), by Cu(OH)2-NP-AC in aqueous solution using response surface methodology (RSM). The effects of variables such as pH, initial dyes concentrations (mgL-1), and amount of sorbent (mg) and sonication time (min) on the dyes removal were studied. A central composite design (CCD) was applied to evaluate the interactive effects of adsorption variables. A good correlation (with R2>0.940) between the statistical model and experiment was found for dyes removal from aqueous wastewater using the adsorbent. The optimum removal (99.20%±1.48) was thus obtained at pH 6.0, ultrasound time 2.5min, adsorbent mass 20mg and initial dye concentration at 5mgL-1 for MB and EY and 12.5mgL-1 for PR. The maximum adsorption capacity (Qmax) was calculated from the Langmuir isotherm as 32.9, 26.4 and 38.5mgg-1 for the MB, EY and PR, respectively for the 0.015g of sorbent. The adsorption kinetic data of the dyes were analyzed and was found fitting well in a pseudo-second-order equation. Adsorption isotherms and separation factors showed that the adsorbent displays a high selectivity toward one dye in a three-component system with an affinity order of PR>MB>EY. On the other hand, acoustic waves emitted by the cavitation bubbles render a direct effect on the process. This is attributed to the discrete nature and high pressure amplitude of the waves, which creates excessively high convection in the medium, causing adsorption of the pollutants. The chemical nature of the pollutants influences the enhancement effect of ultrasound.
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Affiliation(s)
| | - Mehrorang Ghaedi
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
| | - Arash Asfaram
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Fahimeh Zare
- Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
| | - Shaobin Wang
- Department of Chemical Engineering, Curtin University, G.P.O. Box U1987, Perth, Western Australia 6845, Australia
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14
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Jannesar R, Zare F, Ghaedi M, Daneshfar A. Dispersion of hydrophobic magnetic nanoparticles using ultarsonic-assisted in combination with coacervative microextraction for the simultaneous preconcentration and determination of tricyclic antidepressant drugs in biological fluids. Ultrason Sonochem 2016; 32:380-386. [PMID: 27150784 DOI: 10.1016/j.ultsonch.2016.04.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 06/05/2023]
Abstract
A two-step sample preparation technique based on dispersive micro solid-phase extraction combined with coacervative microextraction is presented for preconcentration and determination of tricyclic antidepressant drugs in biological samples. An important feature of the method is the application of hydrophobic magnetic nanoparticles, which in combination with coacervative microextraction method enables development of rapid and efficient extraction procedure in order to achievement of a high extraction efficiency. Simultaneous optimization by experimental design lead to improvement of method with low cost which supply useful information about interaction among variables. Under the optimized conditions, a linear range of 5-1000ngmL(-1) with detection limits from 0.51 to 1.4ngmL(-1) were obtained for target analytes. The method was successfully used for the determination of analytes in biological fluids (plasma and urine) with relative recoveries in the range of 89-105% (RSDs<3.5%).
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Affiliation(s)
- Ramin Jannesar
- Department of Pathology, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Fahimeh Zare
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj 75918-74831, Iran
| | - Mehrorang Ghaedi
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasouj 75918-74831, Iran.
| | - Ali Daneshfar
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam 69315-516, Iran
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15
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Zare F, Dehghan-Manshadi M, Mirshafiey A. The signal transducer and activator of transcription factors lodge in immunopathogenesis of rheumatoid arthritis. Reumatismo 2016; 67:127-37. [DOI: 10.4081/reumatismo.2015.851] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 01/26/2016] [Accepted: 04/05/2016] [Indexed: 11/23/2022] Open
Abstract
Rheumatoid arthritisis (RA) is a chronic autoimmune disorder that affects ~1-2% of the world’s population and damages synovial joints. RA is characterized by inflammation, autoantibody production, cartilage and bone destruction and synovial hyperplasia. Inflammation induces systemic and articular synthesis of pro-inflammatory cytokines, such as tumor necrosis factor alpha and interleukin-6 that play essential roles in joint and other organ damage in this disease. Considering the role of signal transducer and activator of transcription factors (STATs) in signaling of these cytokines, these proteins may be involved in the pathogenesis of RA. The expression and activity of STATs can contribute to the onset, progression and severity of RA. All STAT family members (STAT1, STAT2, STAT3, STAT4, STAT5a, STAT5b, and STAT6) have been associated with autoimmune diseases, as highlighted in several studies. In this review we aim to describe the immunobiology of STATs and its family members and the role of these proteins in the immunopathogenesis of RA.
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16
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Fakhr E, Zare F, Teimoori-Toolabi L. Precise and efficient siRNA design: a key point in competent gene silencing. Cancer Gene Ther 2016; 23:73-82. [DOI: 10.1038/cgt.2016.4] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 02/01/2016] [Accepted: 02/01/2016] [Indexed: 12/14/2022]
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17
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Miri M, Behzad-Behbahani A, Fardaei M, Farhadi A, Talebkhan Y, Mohammadi M, Tayebinia M, Farokhinejad F, Alavi P, Fanian M, Zare F, Saberzade J, Nikouyan N, Okhovat M, Ranjbaran R, Rafiei Dehbidi G, Naderi S. Construction of bacterial ghosts for transfer and expression of a chimeric hepatitis C virus gene in macrophages. J Microbiol Methods 2015; 119:228-32. [DOI: 10.1016/j.mimet.2015.11.009] [Citation(s) in RCA: 4] [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] [Received: 07/19/2015] [Revised: 11/10/2015] [Accepted: 11/10/2015] [Indexed: 01/06/2023]
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18
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Zare F, Ghaedi M, Daneshfar A, Ostovan A. Magnetic molecularly imprinted polymer for the efficient and selective preconcentration of diazinon before its determination by high-performance liquid chromatography. J Sep Sci 2015; 38:2797-803. [DOI: 10.1002/jssc.201500383] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 05/16/2015] [Accepted: 05/19/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Fahimeh Zare
- Department of chemistry, Faculty of sciences; Yasouj University; Yasouj Iran
| | - Mehrorang Ghaedi
- Department of chemistry, Faculty of sciences; Yasouj University; Yasouj Iran
| | - Ali Daneshfar
- Department of chemistry, Faculty of sciences; Ilam University; Ilam Iran
| | - Abbas Ostovan
- Department of chemistry, Faculty of sciences; Yasouj University; Yasouj Iran
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19
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Zare F, Ghaedi M, Daneshfar A. Ionic-liquid-based surfactant-emulsified microextraction procedure accelerated by ultrasound radiation followed by high-performance liquid chromatography for the simultaneous determination of antidepressant and antipsychotic drugs. J Sep Sci 2015; 38:844-51. [DOI: 10.1002/jssc.201401078] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/10/2014] [Accepted: 12/10/2014] [Indexed: 12/19/2022]
Affiliation(s)
- Fahimeh Zare
- Faculty of Sciences; Department of Chemistry; Yasouj University; Yasouj Iran
| | - Mehrorang Ghaedi
- Faculty of Sciences; Department of Chemistry; Yasouj University; Yasouj Iran
| | - Ali Daneshfar
- Faculty of Sciences; Department of Chemistry; Ilam University; Ilam Iran
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20
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Zare F, Ghaedi M, Daneshfar A. Application of an ionic-liquid combined with ultrasonic-assisted dispersion ofgold nanoparticles for micro-solid phase extraction of unmetabolized pyridoxine and folic acid in biological fluids prior to high-performance liquid chromatography. RSC Adv 2015. [DOI: 10.1039/c5ra08601a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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] Open
Abstract
A facile and efficient protocol was suggested for the synthesis of gold nanoparticles (Au NPs) and their subsequent transfer to aqueous solution using 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, following vigorous shaking with ultrasonic waves.
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Affiliation(s)
- Fahimeh Zare
- Department of Chemistry
- Faculty of Sciences
- Yasouj University
- Yasouj 75918-74831
- Iran
| | - Mehrorang Ghaedi
- Department of Chemistry
- Faculty of Sciences
- Yasouj University
- Yasouj 75918-74831
- Iran
| | - Ali Daneshfar
- Department of Chemistry
- Faculty of Sciences
- Ilam University
- Ilam 69315-516
- Iran
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21
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Zare F, Boye JI, Champagne CP, Orsat V, Simpson BK. Probiotic Milk Supplementation with Pea Flour: Microbial and Physical Properties. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0828-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [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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22
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Zare F, Champagne C, Simpson B, Orsat V, Boye J. Effect of the addition of pulse ingredients to milk on acid production by probiotic and yoghurt starter cultures. Lebensm Wiss Technol 2012. [DOI: 10.1016/j.lwt.2011.08.012] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shams Shahemabadi A, Salehi F, Hashemi A, Vakili M, Zare F, Esphandyari N, Kashanian S. Assessment of antibody titers and immunity to Hepatitis B in children receiving chemotherapy. Iran J Ped Hematol Oncol 2012; 2:133-9. [PMID: 24575253 PMCID: PMC3915435] [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] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 11/18/2012] [Indexed: 10/26/2022]
Abstract
BACKGROUND There is a decrease in vaccine-specific antibody to certain vaccine-preventable diseases in children after chemotherapy, but the frequency of non-immune patients is not clear. In the present case-control study, was taken under investigation protection level to Hepatitis B infection in children 6 months after completing chemotherapy. MATERIALS AND METHODS In this study 68 patients with cancer and 68 healthy children were enrolled. Patients were 1.5 -12 years old with completed standard chemotherapy at least for 6 months. All the patients and healthy children were negative for HBsAg and HBeAg and had received Hepatitis B vaccination. IgG antibody concentrations against Hepatitis B Virus (HBV) were determined in the patients receiving chemotrapy and healthy subjects serum by ELISA method. IgG antibody titer > 10 mIU/ml was considered as baseline protective titer for preventing HBV infection. RESULTS Anti-HBs antibody titer in 19.12% of patients was less than 10 mIU/ml and 11.76% of the patients had borderline antibody titer (10-20 mIU/ml). In healthy subjects, 2.94% and 5.88% had antibody titer < 10 mIU/ml and 10-20 mIU/ml, respectively. According to statistical analysis, frequency of non immune subjects in children with cancer was significantly higher than those in healthy children (P-value=0.024). CONCLUSION HBV vaccination post-intensive chemotherapy in the children with cancer is strongly recommended.
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Affiliation(s)
- A Shams Shahemabadi
- Immunology department, Faculty of medicine, Shahid Sadoughi University of Medical Sciences and Health Services
| | - F Salehi
- Central laboratory of Yazd, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran,
| | - A Hashemi
- Department of Pediatrics, Hematology, Oncology and Genetics Research Center, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran.
| | - M Vakili
- Community Medicine Department, Faculty of Medcine, Shahid Sadoughi University of Medical Sciences and Health Services , Yazd ,Iran
| | - F Zare
- Immunology department, Faculty of medicine, Shahid Sadoughi University of Medical Sciences and Health Services
| | | | - S Kashanian
- Immunology department, Faculty of medicine, Shahid Sadoughi University of Medical Sciences and Health Services
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25
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Akhondzadeh S, Sabet MS, Harirchian MH, Togha M, Cheraghmakani H, Razeghi S, Hejazi SS, Yousefi MH, Alimardani R, Jamshidi A, Zare F, Moradi A. Saffron in the treatment of patients with mild to moderate Alzheimer's disease: a 16-week, randomized and placebo-controlled trial. J Clin Pharm Ther 2011; 35:581-8. [PMID: 20831681 DOI: 10.1111/j.1365-2710.2009.01133.x] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
WHAT IS KNOWN Herbal medicines have been used in the treatment of behavioural and psychological symptoms of dementia but with variable response. Crocus sativus (saffron) may inhibit the aggregation and deposition of amyloid β in the human brain and may therefore be useful in Alzheimer's disease (AD). OBJECTIVE The goal of this study was to assess the efficacy of saffron in the treatment of mild to moderate AD. METHODS Forty-six patients with probable AD were screened for a 16-week, double-blind study of parallel groups of patients with mild to moderate AD. The psychometric measures, which included AD assessment scale-cognitive subscale (ADAS-cog), and clinical dementia rating scale-sums of boxes, were performed to monitor the global cognitive and clinical profiles of the patients. Patients were randomly assigned to receive capsule saffron 30 mg/day (15 mg twice per day) (Group A) or capsule placebo (two capsules per day) for a 16-week study. RESULTS After 16 weeks, saffron produced a significantly better outcome on cognitive function than placebo (ADAS-cog: F=4·12, d.f.=1, P=0·04; CDR: F=4·12, d.f.=1, P=0·04). There were no significant differences in the two groups in terms of observed adverse events. WHAT IS NEW AND CONCLUSION This double-blind, placebo-controlled study suggests that at least in the short-term, saffron is both safe and effective in mild to moderate AD. Larger confirmatory randomized controlled trials are called for.
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Affiliation(s)
- S Akhondzadeh
- Psychiatric Research Center, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran Institute of Medicinal Plants (ACECR), Department of Neurology, Tehran, Iran.
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