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Riazi-Esfahani H, Asadi Khameneh E, Ghassemi F, Mehrabi Bahar M, Torkashvand A, Mahmoudi A, Husein Ahmed A, Faghihi S, Rahimi M, Akbarzadeh A, Faghihi H, Khalili Pour E. Pachychoroid neovasculopathy versus macular neovascularization in age-related macular degeneration with and without shallow irregular pigment epithelial detachment. Sci Rep 2023; 13:19513. [PMID: 37945766 PMCID: PMC10636113 DOI: 10.1038/s41598-023-46891-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023] Open
Abstract
To compare the choroidal neovascular features of individuals with pachychoroid neovasculopathy (PNV) and neovascular age-related macular degeneration (nAMD) with and without shallow irregular pigment epithelial detachment (SIPED). Using optical coherence tomography angiography, the choroidal neovascular complexes of 27 patients with PNV, 34 patients with nAMD and SIPED, and 15 patients with nAMD without SIPED were analyzed with FIJI and AngioTool software. PNV compared to nAMD with SIPED had a greater vessel percentage area (P = 0.034), junction density (P = 0.045), average vessel length (P < 0.001), and fractal dimension (P < 0.001). PNV, compared to nAMD without SIPED, had a greater total vessel length (P = 0.002), total number of junctions (P < 0.001), junction density (P = 0.034), and fractal dimension (P = 0.005). nAMD with SIPED, compared to nAMD without SIPED, had greater vessel area, total number of junctions, total vessel length, and average vessel length (all P values < 0.001). Patients with nAMD plus SIPED and individuals with nAMD without SIPED have similar fractal dimension values (P = 0.703). Biomarkers of choroidal neovascular complexity, such as fractal dimension, can be used to differentiate PNV from nAMD with or without SIPED.
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Affiliation(s)
| | - Esmaeil Asadi Khameneh
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
- Eye Research Center, Farabi Eye Hospital, Qazvin Sq, Tehran, Iran.
| | - Fariba Ghassemi
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | | | - Ahmed Husein Ahmed
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahin Faghihi
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Rahimi
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Akbarzadeh
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooshang Faghihi
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Elias Khalili Pour
- Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Torkashvand A, Anvari P, Ketabi S, Asadi Khameneh E. Central retinal vein and artery occlusion associated with sildenafil: a case report and review of the literature. J Med Case Rep 2023; 17:399. [PMID: 37726852 PMCID: PMC10510287 DOI: 10.1186/s13256-023-04104-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 07/27/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Sildenafil is a selective phosphodiesterase type 5 inhibitor used for the treatment of erectile dysfunction and pulmonary hypertension. It is available over the counter in many countries. While there have been a few reports of retinal vascular occlusion following sildenafil consumption, most cases have other comorbidities as risk factors for the disease, and the exact causal role of this drug in these conditions remains unclear. CASE PRESENTATION We present the case of a healthy 32-year-old Iranian man who developed combined central retinal vein occlusion and retinal artery occlusion following sildenafil exposure. The patient underwent a hypercoagulative state workup for possible underlying risk factors. Additionally, we conducted a literature search on PubMed using the keywords: retinal vein occlusion AND Sildenafil OR Viagra, retinal artery occlusion AND Sildenafil OR Viagra, retinal vascular occlusion AND Sildenafil OR Viagra. To obtain more objective results in the reviews, we employed an adverse drug reaction possibility algorithm. The patient was found to be otherwise healthy, and ancillary tests were unremarkable. A literature review identified seven reports of retinal vascular occlusion following sildenafil use. In most of these cases, the role of sildenafil was not clearly established. To the best of our knowledge, our case achieved the highest score based on the algorithm compared with previous reports. CONCLUSION Sildenafil may be associated with severe retinal vascular accidents in otherwise healthy young individuals.
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Affiliation(s)
- Ali Torkashvand
- Farabi Eye Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Pasha Anvari
- Eye Research Center, Five Sense Health Institute, Tehran, Iran
- Iran University of Medical Science, Tehran, Iran
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Roohipourmoallai R, Faghihi S, Faghihi H, Torkashvand A, Nabavi A, Fooladi MI, Farahani AD, Bazvand F, R Iyer SS, Ebrahimiadib N. Transscleral vs transpupillary diode laser photocoagulation for the treatment of zone II type 1 retinopathy of prematurity: Anatomical and refractive outcomes. Indian J Ophthalmol 2021; 70:189-193. [PMID: 34937237 PMCID: PMC8917555 DOI: 10.4103/ijo.ijo_1125_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Purpose To compare the anatomical and refractive outcomes of transscleral diode versus transpupillary laser photocoagulation for the treatment of zone II type 1 retinopathy of prematurity (ROP). Methods In this prospective comparative interventional case series, infants with type 1 ROP in zone II were assigned to either transpupillary or transscleral laser based on the surgeons' expertise area. The rate of regression, need for retreatment, and structural and biometric outcomes at month 6 were evaluated and compared between the two treatment groups. Results In total, 209 eyes were enrolled; 145 eyes of 77 infants and 64 eyes of 33 infants and were in transscleral and transpupillary groups, respectively. There was no significant difference in baseline characteristics between the groups. There was no significant difference in retreatment rates (1.6% vs. 3.4%; P = 0.669) and progression to stage 4 (1.6% vs. 2.8%; P = 0.999) between the transpupillary and transscleral groups, respectively. At month 6, the mean spherical equivalent was 0.31 ± 3.57 and 0.44 ± 2.85 diopters, and the axial length was 18.28 ± 6.22 and 18.36 ± 6.87 mm in the transpupillary and transscleral groups, respectively, without a significant difference between groups. There was no significant difference in the rate of myopia (43.8% vs. 33.8%; P = 0.169) and high myopia (4.7% vs. 4.8%; P = 0.965) in transpupillary and transscleral groups at month 6. Conclusion The transpupillary and transscleral laser photocoagulation routes are both effective in the treatment of zone II type 1 ROP and show no significant differences in anatomical or refractive outcomes in relation to the route chosen.
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Affiliation(s)
- Ramak Roohipourmoallai
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Shahin Faghihi
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooshang Faghihi
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Torkashvand
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
| | - Amin Nabavi
- Department of Ophthalmology, Guilan University of Medical Sciences, Rasht, Iran
| | - Marjan I Fooladi
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran; Department of Ophthalmology, The University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Afsar D Farahani
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Bazvand
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
| | - Siva S R Iyer
- Department of Ophthalmology, University of Florida, Gainesville, FL, USA
| | - Nazanin Ebrahimiadib
- Department of Ophthalmology, Tehran University of Medical Sciences, Tehran, Iran
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Torkashvand A, Riazi-Esfahani H, Ghassemi F, Khalili Pour E, Masoomian B, Zarei M, Fadakar K, Arjmand M, Tayebi F, Ekradi L, Abrishami Moghaddam H, Mahmoudi T, Daneshmand R, Faghihi H. Evaluation of radiation maculopathy after treatment of choroidal melanoma with ruthenium-106 using optical coherence tomography angiography. BMC Ophthalmol 2021; 21:385. [PMID: 34727878 PMCID: PMC8562000 DOI: 10.1186/s12886-021-02140-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 10/06/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND To assess the impact of brachytherapy on macular microvasculature utilizing optical coherence tomography angiography (OCTA) in treated choroidal melanoma. METHODS In this retrospective observational case series, we reviewed the recorded data of the patients with unilateral extramacular choroidal melanoma treated with ruthenium - 106 (106Ru) plaque radiotherapy with a follow-up period of more than 6 months. Automatically measured OCTA retinal parameters were analysed after image processing. RESULTS Thirty-one eyes of 31 patients with the mean age of 51.1 years were recruited. Six eyes had no radiation maculopathy (RM). From 25 eyes with RM, nine eyes (36%) revealed a burnout macular microvasculature with imperceptible vascular details. Twenty-one non-irradiated fellow eyes from the enrolled patients were considered as the control group. Foveal and optic disc radiation dose had the highest value to predict the burnout pattern (ROC, AUC: 0.763, 0.727). Superficial and deep foveal avascular zone (FAZ) were larger in irradiated eyes in comparison to non-irradiated fellow eyes (1629 μm2 vs. 428 μm2, P = 0.005; 1837 μm2 vs 268 μm2, P = 0.021; respectively). Foveal and parafoveal vascular area density (VAD) and vascular skeleton density (VSD) in both superficial and deep capillary plexus (SCP and DCP) were decreased in all irradiated eyes in comparison with non-irradiated fellow eyes (P < 0.001). Compared with non-irradiated fellow eyes, irradiated eyes without RM had significantly lower VAD and VSD at foveal and parafoveal DCP (all P < 0.02). However, these differences at SCP were not statistically significant. CONCLUSION The OCTA is a valuable tool for evaluating RM. Initial subclinical microvascular insult after 106Ru brachytherapy is more likely to occur in DCP. The deep FAZ area was identified as a more critical biomarker of BCVA than superficial FAZ in these patients.
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Affiliation(s)
- Ali Torkashvand
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Riazi-Esfahani
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Ocular Oncology Department, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fariba Ghassemi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran. .,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran. .,Ocular Oncology Department, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Elias Khalili Pour
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Babak Masoomian
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Zarei
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Kaveh Fadakar
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Arjmand
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Tayebi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Ekradi
- Machine Vision and Medical Image Processing (MVMIP) Lab, Faculty of Electrical Engineering, K.N. Toosi University of Technology, Tehran, Iran
| | - Hamid Abrishami Moghaddam
- Machine Vision and Medical Image Processing (MVMIP) Lab, Faculty of Electrical Engineering, K.N. Toosi University of Technology, Tehran, Iran
| | - Tahereh Mahmoudi
- Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences and Research Center for Science and Technology in Medicine, Tehran, Iran
| | - Reihaneh Daneshmand
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Hooshang Faghihi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.,Retina & Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Khodabande A, Zarei M, Khojasteh H, Mohammadi M, Asadi Khameneh E, Torkashvand A, Davoodabadi M. The Effect of Acute Rises in Intraocular Pressure after Intravitreal Bevacizumab Injection on the Peripapillary Retinal Nerve Fiber Layer Thickness and the Role of Anterior Chamber Paracentesis. J Curr Ophthalmol 2021; 33:12-16. [PMID: 34084951 PMCID: PMC8102946 DOI: 10.4103/joco.joco_214_20] [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: 05/26/2020] [Revised: 09/05/2020] [Accepted: 09/29/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose: To evaluate acute changes in intraocular pressure (IOP) and their short-term effects on the peripapillary retinal nerve fiber layer (RNFL) thickness after intravitreal bevacizumab (IVB) injection. Methods: Fifty-eight eyes of 37 patients with treatment-naïve diabetic macular edema or exudative age-related macular degeneration were included in the study. Patients were divided into two groups, and the participants of each group received 3 monthly injections of IVB. IOP was measured right before the injection, immediately after the injection, and 5 min and 20 min after each injection. Peripapillary, RNFL thickness was measured before the injection and 1 month after the third injection. In the second group, anterior chamber (AC) paracentesis was performed before IVB injection. Results: IOP values after injection in all sessions were significantly higher in the first group (P < 0.001). The peripapillary RNFL thickness changes 1 month after the third injection was not statistically significantly different in each group (P = 0.816 and 0.773 for the first and second groups, respectively). Conclusion: AC paracentesis is an effective modality to reduce the acute rise in IOP. The effect of acute IOP elevation on the peripapillary RNFL thickness was not statistically significant.
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Affiliation(s)
- Alireza Khodabande
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Zarei
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasan Khojasteh
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Massood Mohammadi
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmaeil Asadi Khameneh
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Torkashvand
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Davoodabadi
- Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Ebrahimi Z, Torkashvand A, Zarei M, Faghihi H, Khalili Pour E, Imani Fooldi M, Ebrahimiadib N. Treatment of Inflammatory Macular Hole: Case Series and Review of Literature. Ocul Immunol Inflamm 2021; 30:966-972. [PMID: 33826475 DOI: 10.1080/09273948.2020.1867871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: To present the success rate of nonsurgical management of full-thickness inflammatory macular hole (IMH)Method: Retrospective case series of five patients with IMH.Result: Five eyes from five patients with IMH enrolled in the current case series. All five eyes had successful closure with corticosteroid in the form of topical, periocular, or intravitreal injections. Systemic immunomodulatory treatment was employed for two patients, in addition to local therapy. For local therapy, one patient received topical eye drops, subtenon injection of corticosteroid, and intravitreal injection of combination of corticosteroid and anti-VEGF was performed in two patients. The closed macular hole reopened in one patient after two years, which required pars plana vitrectomy and anatomical and visual success achieved.Conclusion: Inflammatory macular holes can be closed with non-surgical interventions, although reopening may occur which requires surgery.
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Affiliation(s)
- Zohreh Ebrahimi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Torkashvand
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Zarei
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooshang Faghihi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Elias Khalili Pour
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Marjan Imani Fooldi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Nazanin Ebrahimiadib
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Torkashvand A, Bahrami F, Adib M, Ajdary S. Subcutaneous Immunization with Recombinant Lactococcus lactis Expressing F1S1 Fusion Protein Induces Systemic and Mucosal Immune Responses in BALB/C Mice. Rep Biochem Mol Biol 2019; 7:196-203. [PMID: 30805400 PMCID: PMC6374061] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 02/07/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Lactic acid bacteria such as Lactococcus (L.) lactis are powerful tools that can function as live delivery vectors and heterologous protein expression hosts in development of novel vaccines. Pertussis toxin (PT) and filamentous hemagglutinin (FHA) are important virulence factors of Bordetella (B.) pertussis and constitute the major components of commercially available acellular pertussis (aP) vaccines. The purpose of the present study was to express F1S1 fusion protein, consisted of the N-terminal region of S1 subunit from PT and FHA type 1 immunodominant domain by L. lactis and to evaluate its immunogenicity. METHODS The fusion gene composed of sequences encoding the F1S1 and the signal peptide of usp45 fragments (SECF1S1) was codon optimized for protein production in L. lactis and was synthesized and inserted in-frame inside pNZ8149 plasmid. The resulting pNZ8149-SECF1S1 construct was introduced by electroporation into L. lactis cells (LL-F1S1). BALB/c mice were subcutaneously immunized with LL-F1S1 or commercial DTaP vaccine. The immune responses were investigated. RESULTS The LL-F1S1-immunized mice produced significant levels of specific IFN-g compared to their respective controls and DTaP-immunized mice. The F1S1- specific IgG antibody response was lower in LL-F1S1-immunized mice while the IgG2a/IgG1 ratio was higher in this group compared to the DTaP-immunized mice. Moreover, anti-F1S1 IgA antibodies were only detected in the lung homogenates of the LL-F1S1-immunized mice, suggesting the induction of a mucosal immune response. CONCLUSION These results indicate the feasibility of expression of F1S1 fusion protein in L. lactis. This recombinant bacterium could induce mucosal and Th1-type systemic immune responses following subcutaneous administration.
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Affiliation(s)
- Ali Torkashvand
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, IR-Iran.
| | - Fariborz Bahrami
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran 13169-43551, IR-Iran.
| | - Minoo Adib
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, IR-Iran.
| | - Soheila Ajdary
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran 13169-43551, IR-Iran.
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Torkashvand A, Bahrami F, Adib M, Ajdary S. Subcutaneous administration of a fusion protein composed of pertussis toxin and filamentous hemagglutinin from Bordetella pertussis induces mucosal and systemic immune responses. Iran J Basic Med Sci 2018; 21:753-759. [PMID: 30140416 PMCID: PMC6098962 DOI: 10.22038/ijbms.2018.29112.7026] [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] [Indexed: 12/02/2022]
Abstract
Objective(s): After decades of containment, pertussis disease, caused by Bordetella pertussis seems to be re-emerging and still remains a major cause of reported vaccine-preventable deaths worldwide. The current licensed whole-cell vaccines display reactogenicity while acellular vaccines are expensive and do not induce Th1-type immune responses that are required for optimum protection against the disease. Thus, there is an urgent need to develop new vaccines and the recombinant technology seems to be the method of choice for this purpose. The present study was an attempt to develop a new, simplified, cost-effective and well-defined vaccine against Bordetella pertussis, with capacity to induce a Th1 response. Materials and Methods: A fusion DNA fragment encoding the N-terminal region of pertussis toxin S1 subunit and filamentous hemagglutinin type 1 immunodominant domain was constructed and the corresponding fusion protein (F1S1) was produced in Escherichia coli. F1S1 in conjunction with imiquimod was administered by subcutaneous (SC) and intranasal (IN) routes to BALB/c mice. Results: This vaccine formulation could elicit high levels of IFN-γ, serum IgG (with higher IgG2a/IgG1 ratio) and lung IgA after the SC and, to a lesser extent, following the IN administration. Conclusion: Our results indicate that the above-mentioned important proteins of B. pertussis could be successfully produced in E. coli as a single fusion protein. Furthermore, this protein could induce proper systemic and mucosal immune responses after administration via SC or IN routes.
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Affiliation(s)
- Ali Torkashvand
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fariborz Bahrami
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran
| | - Minoo Adib
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Soheila Ajdary
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, Iran
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Moghimi S, Torkashvand A, Mohammadi M, Yaseri M, Saunders LJ, Lin SC, Weinreb RN. Classification of primary angle closure spectrum with hierarchical cluster analysis. PLoS One 2018; 13:e0199157. [PMID: 30036362 PMCID: PMC6056027 DOI: 10.1371/journal.pone.0199157] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 06/02/2018] [Indexed: 11/19/2022] Open
Abstract
PURPOSE To classify subjects with primary angle closure into clusters based on features from anterior segment optical coherence tomography (ASOCT) imaging and to explore how these clusters correspond to disease subtypes, including primary angle closure suspect (PACS), primary angle closure glaucoma(PACG), acute primary angle closure (APAC) and fellow eyes of APAC and reveal the factors that become more predominant in each subtype of angle closure. METHOD A cross-sectional study of 248 eyes of 198 subjects(88 PACS eyes, 53 PACG eyes, 54 APAC eyes and 53 fellow eyes of APAC) that underwent complete examination including gonioscopy, A-scan biometry, and ASOCT. An agglomerative hierarchical clustering method was used to classify eyes based on ASOCT parameters. RESULTS Statistical clustering analysis produced three clusters among which the anterior segment parameters were significantly different. Cluster 1(43 eyes) had the smallest anterior chamber depth(ACD) and area, as well as the greatest lens vault (p<0.001 for all). Cluster 2(113 eyes) had the thickest iris at 2000 microns(p = 0.048), and largest iris area(p<0.001), and the deepest ACD (p<0.001). Cluster 3(92 eyes) was characterized by elements of both clusters 1 and 2 and a higher iris curvature(p<0.001). There was a statistically significant difference in the distribution of clusters among subtypes of angle closure eyes(p<0.001). Although the patterns of clusters were similar in PACS and PACG eyes, with the majority of the eyes classified into cluster 2(55%, and 62%, respectively), the highest proportion of APAC and fellow eyes were assigned to clusters 1(44%) and 3 (51%), respectively. CONCLUSION Hierarchical cluster analysis identified three clusters with different features. Predominant anatomical components are different among subtypes of primary angle closure.
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Affiliation(s)
- Sasan Moghimi
- Hamilton Glaucoma Center, Department of Ophthalmology, Shiley Eye Institute, University of California-San Diego, La Jolla, California, United States of America
- Department of Ophthalmology, Shiley Eye Institute, University of California, San Diego, La Jolla, California, United States of America
- Tehran University Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Ali Torkashvand
- Tehran University Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Massood Mohammadi
- Tehran University Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Mehdi Yaseri
- Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
| | - Luke J. Saunders
- Hamilton Glaucoma Center, Department of Ophthalmology, Shiley Eye Institute, University of California-San Diego, La Jolla, California, United States of America
| | - Shan C. Lin
- Koret Vision Center, University of California, San Francisco Medical School, San Francisco, California, United States of America
| | - Robert N. Weinreb
- Hamilton Glaucoma Center, Department of Ophthalmology, Shiley Eye Institute, University of California-San Diego, La Jolla, California, United States of America
- Department of Ophthalmology, Shiley Eye Institute, University of California, San Diego, La Jolla, California, United States of America
- * E-mail:
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Torkashvand A, Bahrami F, Adib M, Ajdary S. Mucosal and systemic immune responses elicited by recombinant Lactococcus lactis expressing a fusion protein composed of pertussis toxin and filamentous hemagglutinin from Bordetella pertussis. Microb Pathog 2018; 120:155-160. [PMID: 29738814 PMCID: PMC7125623 DOI: 10.1016/j.micpath.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 01/30/2023]
Abstract
We constructed a food-grade expression system harboring a F1S1 fusion protein of Bordetella pertussis to be produced in Lactococcus lactis NZ3900 as a new oral vaccine model against whooping cough, caused by B. pertussis. F1S1 was composed of N-terminally truncated S1 subunit of pertussis toxin and type I immunodominant domain of filamentous hemagglutinin which are both known as protective immunogens against pertussis. The recombinant L. lactis was administered via oral or intranasal routes to BALB/c mice and the related specific systemic and mucosal immune responses were then evaluated. The results indicated significantly higher levels of specific IgA in the lung extracts and IgG in sera of mucosally-immunized mice, compared to their controls. It was revealed that higher levels of IgG2a, compared to IgG1, were produced in all mucosally-immunized mice. Moreover, immunized mice developed Th1 responses with high levels of IFN-γ production by the spleen cells. These findings provide evidence for L. lactis to be used as a suitable vehicle for expression and delivery of F1S1 fusion protein to mucosa and induction of appropriate systemic and mucosal immune responses against pertussis. Lactococcus lactis was used for expression of fusion protein from Bordetella pertussis. BALB/c mice were immunized via oral or intranasal routes with recombinant L. lactis. Strong mucosal and Th1 systemic immune responses were developed. L. lactis is a suitable vehicle for expression and delivery of B. pertussis fusion protein.
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Affiliation(s)
- Ali Torkashvand
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Fariborz Bahrami
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, 13169-43551, Islamic Republic of Iran
| | - Minoo Adib
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Islamic Republic of Iran
| | - Soheila Ajdary
- Department of Immunology, Pasteur Institute of Iran, 69 Pasteur Ave., Tehran, 13169-43551, Islamic Republic of Iran.
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Tabatabaei SA, Soleimani M, Behrouz MJ, Torkashvand A, Anvari P, Yaseri M. A randomized clinical trial to evaluate the usefulness of amniotic membrane transplantation in bacterial keratitis healing. Ocul Surf 2017; 15:218-226. [DOI: 10.1016/j.jtos.2017.01.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 01/21/2017] [Accepted: 01/21/2017] [Indexed: 11/15/2022]
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Anvari P, Eshraghi B, Torkashvand A, Katoozpour R. Delayed retrobulbar hemorrhage after reconstruction of inferior orbital wall fracture: a case report. J Egypt Ophthalmol Soc 2017. [DOI: 10.4103/ejos.ejos_34_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Nicknam MH, Torkashvand A, Ghods A, Amirzargar AA, Amirkhani A, Khosravi F, Nikbin B. Evaluation of Anti- HLA Class I Antibodies in Chronic Rejection of Kidney Transplantation. Iran J Allergy Asthma Immunol 2012; 3:65-9. [PMID: 17301394 DOI: 03.02/ijaai.6569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Studies have shown that patients who do not produce donor specific and /or panel reactive anti-HLA antibodies have a longer graft survival. The purpose of this study was to evaluate the posttransplant humoral immune response towards HLA-class I antigens and the measurement of the serum creatinine levels which are used in monitoring posttransplant function of kidney. Serum samples from 132 renal transplant recipients were screened for preformed anti-HLA class I panel reactive antibodies (PRA) by means of microlymphocytotoxicity assay. The results revealed the presence of PRA in 26 (19.7%) out of 132 transplanted patients. Graft function was evaluated by measurement of serum creatinine levels which revealed the mean of 1.75 mg/dl (SD: 1.08). Because of clinical significance of presence of different PRA amounts (>10%, > 20% and >50% of panel reactivity) in patients, correlation with kidney function status was analyzed. The obtained data highlighted a higher presence of serum creatinine levels in PRA-positive patients compared to negative patients (P<0.01). These results (and further studies for class II, ...) can be used to implement new therapeutic strategies to curtail post transplant alloantibodies production and better allografts survival.
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Affiliation(s)
- Mohammad Hossein Nicknam
- Immunology Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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