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Emamjomeh A, Mohammadifard N, Abbasi M, Askari M, Taheri M, Javanbakht S, Ahmadian M, Sayyah M, Mahmoudi S, Heidari K, Sarrafzadegan N. Association of obesity and the clinical course of hospitalised COVID-19 survivors. Clin Obes 2024:e12663. [PMID: 38689477 DOI: 10.1111/cob.12663] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 05/02/2024]
Abstract
Obesity is a risk factor for chronic inflammation and severe pulmonary infections. This study aimed to assess the association between obesity and the clinical courses of hospitalised COVID-19 survivors. This cross-sectional study used the Isfahan COVID Cohort (ICC) baseline data. The ICC is an ongoing, 5-year prospective, longitudinal cohort study conducted on hospitalised COVID-19 survivors in affiliated hospitals of the Medical University of Isfahan (MUI), Iran. Patients aged 19 and over throughout Isfahan County were recruited using a consecutive sampling method 1 month after discharge. Demographic and basic characteristics, symptoms and clinical features of these patients were collected and analysed. A total of 3843 hospitalised patients with COVID-19 were included in this study. Regarding the body mass index classification in the general obesity group, the patients with overweight and obesity had more extended hospitalisation and a higher frequency of low O2 saturation compared to the normal weight patients, and the highest frequency of low O2 saturation and more extended hospitalisation was observed in patients with obesity (5.9 ± 3.8 vs. 6.8 ± 5.4 vs. 7.1 ± 5.3, respectively; p = .001 and 59% vs. 64.5% vs. 65.5%; p < .001). Furthermore, individuals with abdominal obesity had a significantly longer duration of hospitalisation compared to the non-abdominal obesity group (6.3 ± 4.6 vs. 7.0 ± 5.3; p < .001). In the fully adjusted model, a significant association was observed between abdominal obesity and an increased occurrence of low oxygen saturation compared to general obesity (odds ratio: 1.25, 95% confidence interval: 1.03-1.44). Obesity was associated with more extended hospitalisation and hypoxia in patients with COVID-19. However, no significant relationship was found between obesity and other clinical courses.
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Affiliation(s)
- Ali Emamjomeh
- Interventional Cardiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Noushin Mohammadifard
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Abbasi
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mozhde Askari
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marzieh Taheri
- Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahel Javanbakht
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahshid Ahmadian
- Noncommunicable Control Department, Vice Chancellery of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maedeh Sayyah
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shirin Mahmoudi
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kamal Heidari
- Department of Community Oral Health, School of Dentistry, Social Determinants of Health Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nizal Sarrafzadegan
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
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Nogueira RG, Pinheiro A, Brinjikji W, Abbasi M, Al-Bayati AR, Mohammaden MH, Souza Viana L, Ferreira F, Abdelhamid H, Bhatt NR, Kvamme P, Layton KF, Delgado Almandoz JE, Hanel RA, Mendes Pereira V, Almekhlafi MA, Yoo AJ, Jahromi BS, Gounis MJ, Patel B, Arturo Larco JL, Fitzgerald S, Mereuta OM, Doyle K, Savastano LE, Cloft HJ, Thacker IC, Kayan Y, Copelan A, Aghaebrahim A, Sauvageau E, Demchuk AM, Bhuva P, Soomro J, Nazari P, Cantrell DR, Puri AS, Entwistle J, Polley EC, Frankel MR, Kallmes DF, Haussen DC. Clot composition and recanalization outcomes in mechanical thrombectomy. J Neurointerv Surg 2024; 16:466-470. [PMID: 37419694 DOI: 10.1136/jnis-2023-020117] [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: 02/06/2023] [Accepted: 05/24/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND Mechanical thrombectomy (MT) has become standard for large vessel occlusions, but rates of complete recanalization are suboptimal. Previous reports correlated radiographic signs with clot composition and a better response to specific techniques. Therefore, understanding clot composition may allow improved outcomes. METHODS Clinical, imaging, and clot data from patients enrolled in the STRIP Registry from September 2016 to September 2020 were analyzed. Samples were fixed in 10% phosphate-buffered formalin and stained with hematoxylin-eosin and Martius Scarlett Blue. Percent composition, richness, and gross appearance were evaluated. Outcome measures included the rate of first-pass effect (FPE, modified Thrombolysis in Cerebral Infarction 2c/3) and the number of passes. RESULTS A total of 1430 patients of mean±SD age 68.4±13.5 years (median (IQR) baseline National Institutes of Health Stroke Scale score 17.2 (10.5-23), IV-tPA use 36%, stent-retrievers (SR) 27%, contact aspiration (CA) 27%, combined SR+CA 43%) were included. The median (IQR) number of passes was 1 (1-2). FPE was achieved in 39.3% of the cases. There was no association between percent histological composition or clot richness and FPE in the overall population. However, the combined technique resulted in lower FPE rates for red blood cell (RBC)-rich (P<0.0001), platelet-rich (P=0.003), and mixed (P<0.0001) clots. Fibrin-rich and platelet-rich clots required a higher number of passes than RBC-rich and mixed clots (median 2 and 1.5 vs 1, respectively; P=0.02). CA showed a trend towards a higher number of passes with fibrin-rich clots (2 vs 1; P=0.12). By gross appearance, mixed/heterogeneous clots had lower FPE rates than red and white clots. CONCLUSIONS Despite the lack of correlation between clot histology and FPE, our study adds to the growing evidence supporting the notion that clot composition influences recanalization treatment strategy outcomes.
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Affiliation(s)
| | | | | | - Mehdi Abbasi
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | | | | | | | - Nirav R Bhatt
- UPMC Stroke Institute, Pittsburgh, Pennsylvania, USA
| | - Peter Kvamme
- Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, USA
| | - Kennith F Layton
- NeuroInterventional Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | | | - Ricardo A Hanel
- Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, Florida, USA
| | - Vitor Mendes Pereira
- Division of Neuroradiology, Department of Medical Imaging and Division of Neurosurgery, Department of Surgery, University Health Network - Toronto Western Hospital, Toronto, Ontario, Canada
| | - Mohammed A Almekhlafi
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Albert J Yoo
- Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Babak S Jahromi
- Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Matthew J Gounis
- New England Center for Stroke Research, Department of Radiology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Biraj Patel
- Radiology, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
- Radiology, Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | | | | | - Oana Madalina Mereuta
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- CÚRAM-SFI Research Centre for Medical Devices and Physiology Department, National University of Ireland Galway, Galway, Ireland
| | - Karen Doyle
- Physiology, CURAM, National University of Ireland Galway, Galway, Ireland
| | | | | | - Ike C Thacker
- NeuroInterventional Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Yasha Kayan
- Interventional Neuroradiology, Abbot Northwestern Hospital, 55435, Minnesota, USA
| | - Alexander Copelan
- NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Amin Aghaebrahim
- Lyerly Neurosurgery, Baptist Health System, Jacksonville, Florida, USA
| | - Eric Sauvageau
- Lyerly Neurosurgery, Baptist Neurological Institute, Jacksonville, Florida, USA
| | - Andrew M Demchuk
- Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- University of Calgary, Calgary, Alberta, Canada
| | - Parita Bhuva
- Neuroendovascular Surgery, Texas Stroke Institute, Plano, Texas, USA
| | - Jazba Soomro
- Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Pouya Nazari
- Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Neurosurgery and Radiology, Northwestern University, Chicago, Illinois, USA
| | | | - Ajit S Puri
- Radiology, University of Massachusetts, Worcester, Massachusetts, USA
| | - John Entwistle
- Radiology, Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | | | - Michael R Frankel
- Department of Neurology, Emory University Atlanta, Atlanta, Georgia, USA
- Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Atlanta, Georgia, USA
| | | | - Diogo C Haussen
- Neurology and Radiology, Emory University School of Medicine, Atlanta, Georgia, USA
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Bangad A, Abbasi M, Payabvash S, de Havenon A. Imaging of Amyloid-beta-related Arteritis. Neuroimaging Clin N Am 2024; 34:167-173. [PMID: 37951701 DOI: 10.1016/j.nic.2023.09.001] [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] [Indexed: 11/14/2023]
Abstract
Cerebral amyloid angiopathy (CAA) is a cerebrovascular disorder marked by the accumulation of amyloid-beta peptide (Aβ) within the leptomeninges and smaller blood vessels of the brain. CAA can be both noninflammatory and inflammatory, and the inflammatory version includes Aβ-related angiitis (ABRA). ABRA is a vasculitis of the central nervous system related to an inflammatory response to Aβ in the vascular walls, which necessitates differentiating ABRA from noninflammatory CAA, as ABRA may require immunosuppressive treatment. MR imaging is typically the most effective imaging modality of choice to screen for these conditions, and they should be obtained at varying time points to track disease progression.
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Affiliation(s)
- Aaron Bangad
- Department of Neurology, Yale University, New Haven, CT, USA
| | - Mehdi Abbasi
- Department of Neurology, Yale University, New Haven, CT, USA
| | - Sam Payabvash
- Center for Brain and Mind Health, Yale University, New Haven, CT, USA
| | - Adam de Havenon
- Department of Neurology, Yale University, New Haven, CT, USA; Center for Brain and Mind Health, Yale University, New Haven, CT, USA.
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Nikmahzar A, Koruji M, Jahanshahi M, Khadivi F, Shabani M, Dehghani S, Forouzesh M, Jabari A, Feizollahi N, Salem M, Ghanami Gashti N, Abbasi Y, Abbasi M. Differentiation of human primary testicular cells in the presence of SCF using the organoid culture system. Artif Organs 2023; 47:1818-1830. [PMID: 37698035 DOI: 10.1111/aor.14643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/01/2023] [Accepted: 08/09/2023] [Indexed: 09/13/2023]
Abstract
PURPOSE Development of organoids using human primary testicular cells has remained a challenge due to the complexity of the mammalian testicular cytoarchitecture and culture methods. In this study, we generated testicular organoids derived from human primary testicular cells. Then, we evaluated the effect of stem cell factor (SCF) on cell differentiation and apoptosis in the testicular organoid model. METHODS The testicular cells were harvested from the three brain-dead donors. Human spermatogonial stem cells (SSCs) were characterized using immunocytochemistry (ICC), RT-PCR and flow cytometry. Testicular organoids were generated from primary testicular cells by hanging drop culture method and were cultured in three groups: control group, experimental group 1 (treated FSH and retinoic acid (RA)), and experimental group 2 (treated FSH, RA and SCF), for five weeks. We assessed the expression of SCP3 (Synaptonemal Complex Protein 3) as a meiotic gene, PRM2 (Protamine 2) as a post-meiotic marker and apoptotic genes of Bax (BCL2-Associated X Protein) and Bcl-2 (B-cell lymphoma 2), respectively by using RT-qPCR. In addition, we identified the expression of PRM2 by immunohistochemistry (IHC). RESULTS Relative expression of SCP3, PRM2 and Bcl-2 were highest in group 2 after five weeks of culture. In contrast, BAX expression level was lower in experimental group 2 in comparison with other groups. IHC analyses indicated the highest expression of PRM2 as a postmeiotic marker in group 2 in comparison to 2D culture and control groups but not find significant differences between experimental group 1 and experimental group 2 groups. Morphological evaluations revealed that organoids are compact spherical structures and in the peripheral region composed of uncharacterized elongated fibroblast-like cells. CONCLUSION Our findings revealed that the testicular organoid culture system promote the spermatogonial stem cell (SSC) differentiation, especially in presence of SCF. Developed organoids are capable of recapitulating many important properties of a stem cell niche.
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Affiliation(s)
- Aghbibi Nikmahzar
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Koruji
- Stem Cell and Regenerative Medicine Center & Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Jahanshahi
- Neuroscience Research Center, Department of Anatomy, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Farnaz Khadivi
- Department of Anatomy, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Maryam Shabani
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sanaz Dehghani
- Organ Procurement Unit, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Forouzesh
- Legal Medicine Organization of Iran, Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran
| | - Ayob Jabari
- Department of Anatomy, Zahedan Medical University of Science, Zahedan, Iran
| | - Narjes Feizollahi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Yasaman Abbasi
- Program in Neuroscience, Center to Advance Chronic Pain Research, Department of Neural and Pain Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland, USA
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Ghanami Gashti N, Sadighi Gilani MA, Kabodmehri R, Nikmahzar A, Salem M, Abbasi M. Evaluation of PGK2 and ACR proteins in seminal plasma: suggestion of potential new biomarkers for prediction of sperm retrieval in non-obstructive azoospermia patients. HUM FERTIL 2023; 26:1073-1079. [PMID: 35930251 DOI: 10.1080/14647273.2022.2104136] [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: 10/05/2020] [Accepted: 01/21/2022] [Indexed: 11/04/2022]
Abstract
This study aimed to assess the role of testis-specific proteins, PGK2 and ACR, in the prediction of sperm retrieval results by microdissection testicular sperm extraction (micro-TESE) in men with non-obstructive azoospermia (NOA). This was a case-control study including 48 semen samples of NOA patients undergoing the micro-TESE procedure, 15 semen samples from normozoospermic men as the positive control, and 12 semen samples from obstructive azoospermia/post-vasectomy (OA/PV) as negative controls. We investigated the levels of PGK2 and ACR proteins by ELISA tests in seminal plasma samples. The ELISA results revealed a significantly higher concentration of PGK2 and ACR in the NOA patients with successful sperm retrieval (NOA+) in comparison to NOA patients with failed sperm retrieval (NOA-) group (p = 0.0001 in both cases). For the first time, the data from this study suggests that a seminal PGK2 concentration of 136.3 pg/ml and ACR concentration of 21.75 mIU/ml can be used as cut-off values for the prediction of micro-TESE outcomes in NOA patients. These findings may be useful to avoid unnecessary micro-TESE operations. Overall, the seminal levels of the PGK2 and ACR proteins may be useful in predicting sperm retrieval success by micro-TESE in NOA patients.
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Affiliation(s)
- Nasrin Ghanami Gashti
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Reproductive Health Research Center, Department of Obstetrics & Gynecology, Al-Zahra Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mohammad Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
- Department of Urology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Roya Kabodmehri
- Reproductive Health Research Center, Department of Obstetrics & Gynecology, Al-Zahra Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Aghbibi Nikmahzar
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Gou Z, Zhang H, Nait-Ouhra A, Abbasi M, Farutin A, Misbah C. Dynamics and rheology of vesicles under confined Poiseuille flow. Soft Matter 2023; 19:9101-9114. [PMID: 37990752 DOI: 10.1039/d3sm01064c] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
The rheological behavior and dynamics of a vesicle suspension, serving as a simplified model for red blood cells, are explored within a Poiseuille flow under the Stokes limit. Investigating vesicle response has led to the identification of novel solutions that complement previously documented forms like the parachute and slipper shapes. This study has brought to light the existence of alternative configurations, including a fully off-centered form and a multilobe structure. The study unveils the presence of two distinct branches associated with the slipper shape. One branch arises as a consequence of a supercritical bifurcation from the symmetric parachute shape, while the other emerges from a saddle-node bifurcation. Notably, the findings are represented through diagrams that display data collapsing harmoniously based on a combination of independent dimensionless parameters. Delving into the rheological implications, a remarkable observation emerges: the normalized viscosity (i.e. similar to intrinsic viscosity) exhibits a non-monotonic trend as a function of vesicle concentration. Initially, the normalized viscosity diminishes as the concentration increases, followed by a subsequent rise at higher concentrations. Noteworthy is the presence of a minimum value in the normalized viscosity at lower concentrations, aligning well with the concentrations observed in microcirculation scenarios. The intricate behavior of the normalized viscosity can be attributed to a delicate spatial arrangement within the suspension. Importantly, this trend echoes the observations made in a linear shear flow scenario, thereby underscoring the universality of the rheological behavior for confined suspensions.
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Affiliation(s)
- Zhe Gou
- College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France.
| | - Hengdi Zhang
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France.
| | - Abdessamad Nait-Ouhra
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France.
- Laboratoire de Matière Condensée et Sciences Interdisciplinaires, Faculty of Sciences, Mohammed V University of Rabat, Rabat 1014, Morocco
- Université de Lorraine, CNRS, GeoRessources, Nancy, 54000, France
| | - Mehdi Abbasi
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France.
| | | | - Chaouqi Misbah
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France.
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Salem M, Khadivi F, Javanbakht P, Mojaverrostami S, Abbasi M, Feizollahi N, Abbasi Y, Heidarian E, Rezaei Yazdi F. Advances of three-dimensional (3D) culture systems for in vitro spermatogenesis. Stem Cell Res Ther 2023; 14:262. [PMID: 37735437 PMCID: PMC10512562 DOI: 10.1186/s13287-023-03466-6] [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: 09/26/2022] [Accepted: 08/22/2023] [Indexed: 09/23/2023] Open
Abstract
The loss of germ cells and spermatogenic failure in non-obstructive azoospermia are believed to be the main causes of male infertility. Laboratory studies have used in vitro testicular models and different 3-dimensional (3D) culture systems for preservation, proliferation and differentiation of spermatogonial stem cells (SSCs) in recent decades. The establishment of testis-like structures would facilitate the study of drug and toxicity screening, pathological mechanisms and in vitro differentiation of SSCs which resulted in possible treatment of male infertility. The different culture systems using cellular aggregation with self-assembling capability, the use of different natural and synthetic biomaterials and various methods for scaffold fabrication provided a suitable 3D niche for testicular cells development. Recently, 3D culture models have noticeably used in research for their architectural and functional similarities to native microenvironment. In this review article, we briefly investigated the recent 3D culture systems that provided a suitable platform for male fertility preservation through organ culture of testis fragments, proliferation and differentiation of SSCs.
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Affiliation(s)
- Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Farnaz Khadivi
- Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
- Department of Anatomy, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran.
| | - Parinaz Javanbakht
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Sina Mojaverrostami
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Narjes Feizollahi
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Yasaman Abbasi
- School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Heidarian
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Farzane Rezaei Yazdi
- Department of Anatomy, School of Medicine, Tehran University of Medical Science, Tehran, Iran
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Bashiri Z, Moghaddaszadeh A, Falak R, Khadivi F, Afzali A, Abbasi M, Sharifi AM, Asgari HR, Ghanbari F, Koruji M. Generation of Haploid Spermatids on Silk Fibroin-Alginate-Laminin-Based Porous 3D Scaffolds. Macromol Biosci 2023; 23:e2200574. [PMID: 37116215 DOI: 10.1002/mabi.202200574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/03/2023] [Indexed: 04/30/2023]
Abstract
In vitro production of sperm is a desirable idea for fertility preservation in azoospermic men and prepubertal boys suffering from cancer. In this study, a biocompatible porous scaffold based on a triad mixture of silk fibroin (SF), alginate (Alg), and laminin (LM) is developed to facilitate the differentiation of mouse spermatogonia stem cells (SSCs). Following SF extraction, the content is analyzed by SDS-PAGE and stable porous 3D scaffolds are successfully prepared by merely Alg, SF, and a combination of Alg-SF, or Alg-SF-LM through freeze-drying. Then, the biomimetic scaffolds are characterized regarding the structural and biological properties, water absorption capacity, biocompatibility, biodegradability, and mechanical behavior. Neonatal mice testicular cells are seeded on three-dimensional scaffolds and their differentiation efficiency is evaluated using real-time PCR, flow cytometry, immunohistochemistry. Blend matrices showed uniform porous microstructures with interconnected networks, which maintained long-term stability and mechanical properties better than homogenous structures. Molecular analysis of the cells after 21 days of culture showed that the expression of differentiation-related proteins in cells that are developed in composite scaffolds is significantly higher than in other groups. The application of a composite system can lead to the differentiation of SSCs, paving the way for a novel infertility treatment landscape in the future.
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Affiliation(s)
- Zahra Bashiri
- Stem cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Omid Fertility & Infertility Clinic, Hamedan, 6516796198, Iran
| | - Ali Moghaddaszadeh
- Departement of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran
| | - Reza Falak
- Immunology Research Center (IRC), Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Farnaz Khadivi
- Department of Anatomy, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, 8815713471, Iran
| | - Azita Afzali
- Hajar hospital, Shahrekord University of Medical Sciences, Shahrekord, 8816854633, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, 1417653761, Iran
| | - Ali Mohammad Sharifi
- Stem cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Tissue Engineering Group (NOCERAL), Department of Orthopedics Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Hamid Reza Asgari
- Stem cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Farid Ghanbari
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Morteza Koruji
- Stem cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 1449614535, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
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9
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Arturo Larco JL, Madhani SI, Liu Y, Abbasi M, Lylyk PN, Benike A, Shahid A, Tekin B, Quinton R, Savastano LE. Evaluation of an in vivo preclinical model for human middle meningeal artery embolization using the posterior intercostal artery of the swine. J Neurointerv Surg 2023; 15:924-930. [PMID: 35999050 DOI: 10.1136/jnis-2022-019105] [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: 05/02/2022] [Accepted: 07/23/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Embolization of the middle meningeal artery (MMA) is a promising minimally invasive technique that is gaining traction in the treatment of chronic subdural hematoma. Unfortunately, the human meninges and associated arteries are significantly larger than those of conventional laboratory animals, making the development of a clinically relevant animal model for testing of embolization agents elusive. OBJECTIVE To introduce the posterior intercostal artery (PIA) model in swine and provide anatomical, angiographic, histological, and procedural data to validate its relevance in modeling the human MMA. METHODS In human cadaveric specimens, 3D angiograms of the internal maxillary arteries (n=6) were obtained and the dura with MMA were harvested and histologically processed. Angiographic and histologic data of the human MMA were compared with the swine PIA (three animals). Then, embolization of the PIA (n=48 arteries) was conducted with liquid embolization agent (Onyx, Medtronic), and angiographic and histological results were assessed acutely (four animals) and after 30 days (two animals). RESULTS The human MMA has equivalent diameter, length, branching pattern, 3D trajectory, and wall structure to those of swine PIAs. Each swine has 12 to 14 PIAs (6-7 per side) suitable for acute or chronic embolization, which can be performed with high fidelity using the same devices, agents, and techniques currently used to embolize the MMA. The arterial wall structure and the acute and chronic histological findings in PIAs after embolization are comparable to those of humans. CONCLUSIONS This PIA model in swine could be used for research and development; objective benchmarking of agents, devices, and techniques; and in the training of neurointerventionalists.
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Affiliation(s)
| | | | - Yang Liu
- Global Institute of Future Technology, Shanghai Jiao Tong University, Shanghai, China
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic Minnesota, Rochester, Minnesota, USA
| | - Pedro N Lylyk
- Department of Interventional Neuroradiology, Clinica Sagrada Familia, Buenos Aires, CABA, Argentina
| | - Amy Benike
- Department of Radiology, Mayo Clinic Minnesota, Rochester, Minnesota, USA
| | - Adnan Shahid
- Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Burak Tekin
- Department of Pathology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Reade Quinton
- Department of Pathology, Mayo Clinic Rochester, Rochester, Minnesota, USA
| | - Luis E Savastano
- Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Neurosurgery, UCSF, San Francisco, California, USA
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10
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de Havenon A, Zhou LW, Johnston KC, Dangayach NS, Ney J, Yaghi S, Sharma R, Abbasi M, Delic A, Majersik JJ, Anadani M, Tirschwell DL, Sheth KN. Twenty-Year Disparity Trends in United States Stroke Death Rate by Age, Race/Ethnicity, Geography, and Socioeconomic Status. Neurology 2023; 101:e464-e474. [PMID: 37258298 PMCID: PMC10401675 DOI: 10.1212/wnl.0000000000207446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/07/2023] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVES In 2017, the Centers for Disease Control and Prevention (CDC) issued an alert that, after decades of consistent decline, the stroke death rate levelled off in 2013, particularly in younger individuals and without clear origin. The objective of this analysis was to understand whether social determinants of health have influenced trends in stroke mortality. METHODS We performed a longitudinal analysis of county-level ischemic and hemorrhagic stroke death rate per 100,000 adults from 1999 to 2018 using a Bayesian spatiotemporally smoothed CDC dataset stratified by age (35-64 years [younger] and 65 years or older [older]) and then by county-level social determinants of health. We reported stroke death rate by county and the percentage change in stroke death rate during 2014-2018 compared with that during 2009-2013. RESULTS We included data from 3,082 counties for younger individuals and 3,019 counties for older individuals. The stroke death rate began to increase for younger individuals in 2013 (p < 0.001), and the slope of the decrease in stroke death rate tapered for older individuals (p < 0.001). During the 20-year period of our study, counties with a high social deprivation index and ≥10% Black residents consistently had the highest rates of stroke death in both age groups. Comparing stroke death rate during 2014-2018 with that during 2009-2013, larger increases in younger individuals' stroke death rate were seen in counties with ≥90% (vs <90%) non-Hispanic White individuals (3.2% mean death rate change vs 1.7%, p < 0.001), rural (vs urban) populations (2.6% vs 2.0%, p = 0.019), low (vs high) proportion of medical insurance coverage (2.9% vs 1.9%, p = 0.002), and high (vs low) substance abuse and suicide mortality (2.8 vs 1.9%, p = 0.008; 3.3% vs 1.5%, p < 0.001). In contrast to the younger individuals, in older individuals, the associations with increased death rates were with more traditional social determinants of health such as the social deprivation index, urban location, unemployment rate, and proportion of Black race and Hispanic ethnicity residents. DISCUSSION Improvements in the stroke death rate in the United States are slowing and even reversing in younger individuals and many US counties. County-level increases in stroke death rate were associated with distinct social determinants of health for younger vs older individuals. These findings may inform targeted public health strategies.
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Affiliation(s)
- Adam de Havenon
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle.
| | - Lily W Zhou
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Karen C Johnston
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Neha S Dangayach
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - John Ney
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Shadi Yaghi
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Richa Sharma
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Mehdi Abbasi
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Alen Delic
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Jennifer Juhl Majersik
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Mohammad Anadani
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - David L Tirschwell
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
| | - Kevin Navin Sheth
- From the Department of Neurology (A.H., R.S., M. Abbasi, K.N.S.), Yale University, New Haven, CT; Department of Neurology (L.Z.), The University of British Columbia, Vancouver; Department of Neurology (K.C.J.), University of Virginia, Charlottesville; Department of Neurology (N.S.D.), Mount Sinai, New York, NY; Department of Neurology (J.N.), Boston University, MA; Department of Neurology (S.Y.), Brown University, Providence, RI; Department of Neurology (A.D., J.J.M.), University of Utah; Department of Neurology (M. Anadani), Medical University of South Carolina, Charleston; and Department of Neurology (D.L.T.), University of Washington, Seattle
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Naylor RM, Abbasi M, Brinjikji W, Cloft HJ, Kallmes DF, Lanzino G. Long-term outcomes following pipeline embolization of unruptured aneurysms. Acta Neurochir (Wien) 2023:10.1007/s00701-023-05619-1. [PMID: 37191722 DOI: 10.1007/s00701-023-05619-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/05/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Flow diversion using the pipeline embolization device (PED) for unruptured aneurysms is associated with high occlusion and low morbidity and mortality. However, most reports have limited follow-up of 1-2 years. Therefore, we sought to report our outcomes after PED for unruptured aneurysms in patients with at least 5-years of follow-up. METHODS Review of patients undergoing PED for unruptured aneurysms from 2009 to 2016. RESULTS Overall, 135 patients with 138 aneurysms were included for analysis. Seventy-eight percent of aneurysms (n=107) over a median radiographic follow-up of 5.0 years underwent complete occlusion. Among aneurysms with at least 5-years of radiographic follow-up (n=71), 79% (n=56) achieved complete obliteration. No aneurysm recanalized after radiographic obliteration. Furthermore, over a median clinical follow-up period of 4.9 years, 84% of patients (n=115) self-reported mRS scores between 0 and 2. For patients with at least 5-years of clinical follow-up, 88% (n=61) reported mRS between 0 and 2. In total, 3% (n=4) of patients experienced a major, non-fatal neurologic complication related to the PED, 5% (n=7) of patients experienced a minor neurologic complication related to PED placement, and 2% (n=3) died from either delayed aneurysm rupture, delayed ipsilateral hemorrhage after PED placement, or delayed (9 months after treatment) neural compression after progressive thrombosis of a PED-treated dolichoectactic vertebrobasilar aneurysm. CONCLUSIONS Treatment of unruptured aneurysms with the PED is associated with high rates of long-term angiographic occlusion and low, albeit clinically important, rates of major neurologic morbidity and mortality. Thus, flow diversion via PED placement is safe, effective, and durable.
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Affiliation(s)
- Ryan M Naylor
- Department of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurology, Yale University, New Haven, CT, USA
| | | | - Harry J Cloft
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Giuseppe Lanzino
- Department of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
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12
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Zaghari M, Pouraghaali S, Zhandi M, Abbasi M. Effect of Monovalent Copper Oxide and Potentiated Zinc Oxide on Growth Performance and Gut Morphology of Broiler Chickens Challenged with Coccidiosis. Biol Trace Elem Res 2023; 201:2524-2535. [PMID: 35781621 DOI: 10.1007/s12011-022-03339-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/19/2022] [Indexed: 11/02/2022]
Abstract
An experiment was conducted to evaluate the effect of copper oxide (Cu2O) and potentiated zinc oxide (ZnO) on performance, intestinal morphology, oocyst excretion, coccidial lesion scores, and antioxidant properties in broilers during an Eimeria spp. challenge. A total of 288 1-day-old male broiler chickens (Ross 308) were divided into 18 treatments. Treatments included three levels of Cu (0, 15, or 150 mg/kg) from Cu2O and three levels of Zn (0, 80, or 160 mg/kg) from potentiated ZnO which were added to the basal diet and fed to broilers with or without challenge, using a completely randomized design in a factorial arrangement for 42 days. Live body weight, feed intake, mortality, and the cause of death were recorded weekly and histomorphology of jejunum was measured at the end of the experiment. Results showed that birds fed Cu and Zn linearly decreased (P < 0.0001) oocyst shedding. The number of excreted oocysts was reduced eight times in broilers fed a diet containing 150 mg/kg copper from Cu2O and 160 mg/kg zinc from potentiated ZnO, compared to the infected group without Cu and Zn supplementation (P < 0.0001). Microscopic features of both non-challenged and challenged broiler jejunum revealed significant improvement along with increased Cu2O and potentiated ZnO doses. Supplementation of Cu2O and potentiated ZnO decreased the jejunum structure damages and intestinal lesion score (P < 0.002). Eimeria caused a decrease (P < 0.006) in total antioxidant capacity. Superoxide dismutase increased by dietary zinc supplementation (P < 0.05). Results suggested that a combination of Cu2O and potentiated ZnO could exhibit efficient anticoccidial activity.
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Affiliation(s)
- M Zaghari
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, PO Box: 31587-11167, Alborz, Karaj, Iran.
| | - S Pouraghaali
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, PO Box: 31587-11167, Alborz, Karaj, Iran
| | - M Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, PO Box: 31587-11167, Alborz, Karaj, Iran
| | - M Abbasi
- Department of Animal & Poultry Nutrition, Gorgan University of Agricultural Sciences and Natural Resources, PO Box: 49156-77555, Gorgan, Iran
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Das S, Shu L, Morgan RJ, Shah A, Fayad FH, Goldstein ED, Chahien D, Maglinger B, Bokka SK, Owens C, Abbasi M, Kvernland A, Siegler JE, Grory BM, Nguyen TN, Furie K, Khatri P, Mistry E, Prabhakaran S, Liebeskind DS, Romano JG, de Havenon A, Palaiodimou L, Tsivgoulis G, Yaghi S. Borderzone Infarcts and Recurrent Cerebrovascular Events in Symptomatic Intracranial Arterial Stenosis: A Systematic Review and Meta-Analysis. J Stroke 2023; 25:223-232. [PMID: 37282372 PMCID: PMC10250880 DOI: 10.5853/jos.2023.00185] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Intracranial arterial stenosis (ICAS)-related stroke occurs due to three primary mechanisms with distinct infarct patterns: (1) borderzone infarcts (BZI) due to impaired distal perfusion, (2) territorial infarcts due to distal plaque/thrombus embolization, and (3) plaque progression occluding perforators. The objective of the systematic review is to determine whether BZI secondary to ICAS is associated with a higher risk of recurrent stroke or neurological deterioration. METHODS As part of this registered systematic review (CRD42021265230), a comprehensive search was performed to identify relevant papers and conference abstracts (with ≥20 patients) reporting initial infarct patterns and recurrence rates in patients with symptomatic ICAS. Subgroup analyses were performed for studies including any BZI versus isolated BZI and those excluding posterior circulation stroke. The study outcome included neurological deterioration or recurrent stroke during follow-up. For all outcome events, corresponding risk ratios (RRs) and 95% confidence intervals (95% CI) were calculated. RESULTS A literature search yielded 4,478 records with 32 selected during the title/abstract triage for full text; 11 met inclusion criteria and 8 studies were included in the analysis (n=1,219 patients; 341 with BZI). The meta-analysis demonstrated that the RR of outcome in the BZI group compared to the no BZI group was 2.10 (95% CI 1.52-2.90). Limiting the analysis to studies including any BZI, the RR was 2.10 (95% CI 1.38-3.18). For isolated BZI, RR was 2.59 (95% CI 1.24-5.41). RR was 2.96 (95% CI 1.71-5.12) for studies only including anterior circulation stroke patients. CONCLUSION This systematic review and meta-analysis suggests that the presence of BZI secondary to ICAS may be an imaging biomarker that predicts neurological deterioration and/or stroke recurrence.
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Affiliation(s)
- Saurav Das
- Department of Neurology, University of Kentucky, Louisville, KY, USA
| | - Liqi Shu
- Department of Neurology, Brown University, Providence, RI, USA
| | | | - Asghar Shah
- Department of Neurology, Brown University, Providence, RI, USA
| | - Fayez H. Fayad
- Department of Neurology, Brown University, Providence, RI, USA
| | | | | | - Benton Maglinger
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - Cory Owens
- Department of Neurology, University of Kentucky, Louisville, KY, USA
| | - Mehdi Abbasi
- Department of Neurology, Yale University, New Haven, CT, USA
| | | | - James E. Siegler
- Department of Neurology, Cooper University Hospital, Camden, NJ, USA
| | | | - Thanh N. Nguyen
- Department of Neurology, Boston University Medical Center, Boston, MA, USA
| | - Karen Furie
- Department of Neurology, Brown University, Providence, RI, USA
| | - Pooja Khatri
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Eva Mistry
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH, USA
| | | | - David S. Liebeskind
- Department of Neurology, University of California at Los Angeles, Los Angeles, CA, USA
| | - Jose G. Romano
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Adam de Havenon
- Department of Neurology, Yale University, New Haven, CT, USA
| | - Lina Palaiodimou
- Second Department of Neurology, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Georgios Tsivgoulis
- Second Department of Neurology, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Shadi Yaghi
- Department of Neurology, Brown University, Providence, RI, USA
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Madhani SI, Larco JA, Abbasi M, Liu Y, Shahid A, Reade Q, Seibel E, Savastano L. 392 A Morphological Study of Non-Stenotic Carotid Atheromas Causing Recurrent Strokes: Chronicle of Disruption and Stabilization. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_392] [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: 03/18/2023] Open
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Abstract
The health burden of ischemic stroke is high and will continue to increase with an aging population. Recurrent ischemic stroke is increasingly recognized as a major public health concern with potentially debilitating sequelae. Thus, it is imperative to develop and implement effective strategies for stroke prevention. When considering secondary ischemic stroke prevention, it is important to consider the mechanism of the first stroke and the related vascular risk factors. Secondary ischemic stroke prevention typically includes multiple medical and, potentially, surgical treatments, but with the shared goal of reducing the risk of recurrent ischemic stroke. Providers, health care systems, and insurers also need to consider the availability of treatments, their cost and patient burden, methods for improving adherence, and interventions that target lifestyle risk factors such as diet or activity. In this article, we discuss aspects from the 2021 AHA Guideline on Secondary Stroke Prevention as well as highlight additional information relevant to best practices for reducing recurrent stroke risk.
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Affiliation(s)
- Aaron Bangad
- Department of Neurology, Yale University, 15 York Street, New Haven, CT, 06510, USA
| | - Mehdi Abbasi
- Department of Neurology, Yale University, 15 York Street, New Haven, CT, 06510, USA
| | - Adam de Havenon
- Department of Neurology, Yale University, 15 York Street, New Haven, CT, 06510, USA.
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Nowrouzi N, Abbasi M, Zellifard Z. Ph 3P-mediated decarboxylative ring-opening of maleic anhydride by thiolic compounds: formation of two carbon-sulfur bonds. RSC Adv 2023; 13:9242-9246. [PMID: 36950714 PMCID: PMC10026555 DOI: 10.1039/d3ra00294b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 03/13/2023] [Indexed: 03/22/2023] Open
Abstract
In this study, a simple and efficient method for the formation of carbon-sulfur bonds is described. In this process, ring opening of maleic anhydride by thiols or disulfides and triphenylphosphine led to the formation of sulfide products via formation of two carbon-sulfur bonds.
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Affiliation(s)
- N Nowrouzi
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University Bushehr 75169 Iran +98-77-33441494 +98-77-31222341
| | - M Abbasi
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University Bushehr 75169 Iran +98-77-33441494 +98-77-31222341
| | - Z Zellifard
- Department of Chemistry, Faculty of Nano and Bio Science and Technology, Persian Gulf University Bushehr 75169 Iran +98-77-33441494 +98-77-31222341
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Madhani SI, Larco JA, Liu Y, Abbasi M, Shahid AH, Yasin O, Sears V, Morris J, Rosenthal M, Baron S, Savastano L. Construction and Validation of a Benchtop Model for Testing of Mechanical Thrombectomy Devices for Pulmonary Embolism. Cardiovasc Intervent Radiol 2023; 46:385-391. [PMID: 36482095 DOI: 10.1007/s00270-022-03326-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/19/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE This study aims to define the process of designing and manufacturing 3D printed and glass models of the pulmonary artery (PA) and utilizing them in a test bed for evaluation of devices for mechanical thrombectomy of pulmonary embolism (PE). MATERIALS AND METHODS Patient derived computed tomography angiography (CTA) images of the PA were digitally converted into a hollowed-out structure and translated into clear 3D printed and glass models. A test bed was created using a peristaltic pump and silicone tubing connected to the models. Human clot analogs were then prepared and injected within the models. Thrombectomy testing was done using clinically used predicates and baseline characteristics of the models were evaluated by independent interventionalists. RESULTS The mean sizes of the main pulmonary artery (MPA) for the 3D printed model and glass model were 30.4 mm and 29.2 mm, mimicking those of the patient's PA obtained on CTA. Heterogeneous human clot analogs were created with fibrin composition ranging from 60 to 30%. Mechanical thrombectomy was successfully attempted by independent interventionalists. Both the 3D printed, and glass model were appraised as very good for multiple attributes. CONCLUSION A complete test bed using 3D printed and glass models of the PA with human clot analogs was created for testing of mechanical thrombectomy devices for PE.
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Affiliation(s)
| | | | - Yang Liu
- Global Institute of Future Technologies, Shanghai Jiao Tong University, Shanghai, China
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Omar Yasin
- Department of Cardiology, Mayo Clinic, Rochester, MN, USA
| | - Victoria Sears
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | | | - Scott Baron
- Endovascular Engineering, Menlo Park, CA, USA
| | - Luis Savastano
- Department of Neurosurgery, University of California, San Francisco, CA, USA.
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18
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de Havenon A, Abbasi M, Yaghi S, Delic A, Bangad A, Johnston K, Tirschwell D, Sheth KN. Effect of Alteplase on Ischemic Stroke Mortality Is Dependent on Stroke Severity. Ann Neurol 2023; 93:1106-1116. [PMID: 36852919 DOI: 10.1002/ana.26621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVE Although intravenous alteplase (IV-tPA) has a beneficial effect on functional outcome after ischemic stroke (IS), prior studies of IV-tPA's impact on post-stroke mortality did not have sufficient representation of more severe stroke. METHODS We determined if the interaction between the baseline National Institutes of Health (NIH) Stroke Scale (NIHSS) and IV-tPA modified the risk of mortality after IS in two cohorts: (1) National Inpatient Sample 2016-2020, and (2) a harmonized cohort of IS patients from the NINDS IV-tPA, ALIAS part 2, SHINE, FAST-MAG, IMS-III, POINT, and DEFUSE 3 trials. We fit logistic regression models to the outcome of in-hospital mortality (National Inpatient Sample [NIS] cohort) or mortality within 90 days (harmonized cohort), adjusted for baseline variables. RESULTS We included 198,668 patients in the NIS cohort, of which 14.0% received IV-tPA and 3.4% died in hospital. We included 7,138 patients in the harmonized cohort, of which 33.2% received IV-tPA and 9.4% died by 90 days. Mortality in the NIS cohort was associated with older age, female sex, non-Hispanic white race, atrial fibrillation, and higher NIHSS. In the harmonized cohort, mortality was associated with older age, diabetes, atrial fibrillation, and higher NIHSS. In both cohorts, the interaction between NIHSS and IV-tPA was significant. In the NIS cohort, the separation became significant at NIHSS 15 and in the harmonized cohort at NIHSS 23, at which point, IV-tPA began to have a significant benefit for both in-hospital and 90-day mortality, respectively. INTERPRETATION IV-tPA is associated with a reduction in both in-hospital and 90-day mortality for patients with more severe IS. ANN NEUROL 2023.
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Affiliation(s)
- Adam de Havenon
- Department of Neurology, Yale University, New Haven, CT, USA.,Yale Center for Brain & Mind Health, Yale University, New Haven, CT, USA
| | - Mehdi Abbasi
- Department of Neurology, Yale University, New Haven, CT, USA
| | - Shadi Yaghi
- Department of Neurology, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Alen Delic
- Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Aaron Bangad
- Department of Neurology, Yale University, New Haven, CT, USA
| | - Karen Johnston
- Department of Neurology, University of Virginia, Charlottesville, VA, USA
| | - David Tirschwell
- Department of Neurology, University of Washington, Washington, DC, USA
| | - Kevin N Sheth
- Department of Neurology, Yale University, New Haven, CT, USA.,Yale Center for Brain & Mind Health, Yale University, New Haven, CT, USA
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19
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Jabari A, Gholami K, Khadivi F, Koruji M, Amidi F, Gilani MAS, Mahabadi VP, Nikmahzar A, Salem M, Movassagh SA, Feizollahi N, Abbasi M. In vitro complete differentiation of human spermatogonial stem cells to morphologic spermatozoa using a hybrid hydrogel of agarose and laminin. Int J Biol Macromol 2023; 235:123801. [PMID: 36842740 DOI: 10.1016/j.ijbiomac.2023.123801] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 02/08/2023] [Accepted: 02/18/2023] [Indexed: 02/28/2023]
Abstract
Spermatogenesis refers to the differentiation of the spermatogonial stem cells (SSCs) located in the base seminiferous tubules into haploid spermatozoa. Prerequisites for in vitro spermatogenesis include an extracellular matrix (ECM), paracrine factors, and testicular somatic cells which play a supporting role for SSCs. Thus, the present study evaluated the potential of co-culturing Sertoli cells and SSCs embedded in a hybrid hydrogel of agarose and laminin, the main components of the ECM. Following the three-week conventional culture of human testicular cells, the cells were cultured in agarose hydrogel or agarose/laminin one (hybrid) for 74 days. Then, immunocytochemistry, real-time PCR, electron microscopy, and morphological staining methods were applied to analyze the presence of SSCs, as well as the other cells of the different stages of spermatogenesis. Based on the results, the colonies with positive spermatogenesis markers were observed in both culture systems. The existence of the cells of all three phases of spermatogenesis (spermatogonia, meiosis, and spermiogenesis) was confirmed in the two groups, while morphological spermatozoa were detected only in the hybrid hydrogel group. Finally, a biologically improved 3D matrix can support all the physiological activities of SSCs such as survival, proliferation, and differentiation.
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Affiliation(s)
- Ayob Jabari
- Department of Obstetrics and Gynecology, Molud Infertility Center, Zahedan University of Medical Sciences, Zahedan, Iran; Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Science in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Keykavos Gholami
- Urology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farnaz Khadivi
- Department of Anatomy, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Morteza Koruji
- Cellular and Molecular Research Center & Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Fardin Amidi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Aghbibi Nikmahzar
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Narjes Feizollahi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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20
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Das S, Shu L, Morgan R, Shah A, Fayad F, Goldstein E, Chahien D, Maglinger B, Bokka SK, Owens C, Abbasi M, Kvernland A, Siegler JE, Mac Grory B, Tsivgoulis GK, Nguyen TN, Furie KL, Khatri P, Mistry E, Prabhakaran S, Liebeskind DS, Romano JG, De Havenon AH, Yaghi S. Abstract WMP73: Border Zone Infarct Pattern Predicts Early Recurrence In Symptomatic Intracranial Atherosclerotic Disease: A Systematic Review And Meta-analysis. Stroke 2023. [DOI: 10.1161/str.54.suppl_1.wmp73] [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: 02/05/2023]
Abstract
Introduction:
Stroke secondary to intracranial atherosclerosis (ICAD) results in three distinct infarct patterns: (a) border zone infarcts (BZI) due to impaired distal perfusion (b) territorial infarcts due to distal plaque/thrombus embolization, and (c) perforator infarcts due to plaque progression. Previous studies indicate higher stroke recurrence in ICAD patients with BZI.
Methods:
This registered systematic review (CRD42021265230) comprised Medline and Web of Science search from inception to March 2022 for keywords (Intracranial Atherosclerosis OR Intracranial Stenosis) AND (Border zone OR Infarct Pattern) to identify papers and conference abstracts reporting initial infarct patterns and recurrence rates in patients with symptomatic ICAD. Sensitivity analyses were performed for studies including any BZI vs isolated BZI and those excluding posterior circulation strokes. The study outcome included neurological deterioration and/or stroke recurrence. For all outcome events, corresponding risk ratios (RR) and 95% confidence intervals (CI) were calculated. Risk of bias assessments will be presented.
Results:
Literature search yielded 4478 studies,11 met inclusion criteria (n=1315 patients, 354 with BZI, weighted proportions summarized in figure). The meta-analysis of these studies with moderate heterogeneity (I
2
=38.7%) demonstrated that RR of outcomes in BZI group compared to non-BZI group was 2.10 (95% CI 1.52-2.90). Limiting analysis to studies including any BZI, RR (and 95% CI) was 2.32 (1.58-3.40), and 3.25 (2.09-5.07) for studies only including anterior circulation strokes with low heterogeneity for both (I
2
=0%). A non-significantly high outcome rate was seen with isolated BZI (RR 2.29, 95% CI 0.94-5.62) but with moderate heterogeneity across studies (I
2
=70.25%).
Conclusion:
We demonstrate the presence of BZI secondary to symptomatic ICAD can be imaging biomarker to predict neurological deterioration and/or stroke recurrence.
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Affiliation(s)
| | | | | | | | | | | | - Dalia Chahien
- Royal College of Surgeons in Ireland, Dublin, Ireland
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21
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de Havenon A, Bangad A, Abbasi M, Sharma R, Sheth KN, Skolarus L. Abstract WP193: Neighborhood-level Ethnic And Racial Segregation And Incident Stroke Risk. Stroke 2023. [DOI: 10.1161/str.54.suppl_1.wp193] [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: 02/05/2023]
Abstract
Background:
Neighborhood-level ethnic and racial segregation has been linked to health status. We explored whether community level segregation is associated with incident stroke.
Methods:
We used data from Multi-Ethnic Study of Atherosclerosis (MESA). The exposure was neighborhood racial/ethnic segregation measured separately for self-identified White, Black and Hispanic participants and calculated as the Getis-Ord Gi* statistic based on the geocoded address of the participant. The Gi* statistic was categorized using the validated cut points of low, medium, and high neighborhood racial/ethnic segregation (high segregation means that the participant’s neighborhood primarily contained individuals of their race/ethnicity). The primary outcome was incident stroke (ischemic and hemorrhagic) during follow-up. We fit time-to-event Cox models with an interaction between race*segregation and adjustment for age, sex, hypertension, diabetes, hyperlipidemia, and current smoking. The results were further evaluated using marginal effects after logistic regression.
Results:
We included 5,411 MESA participants (mean age 62.0±10.1, 47.4% male, 44.4% White, 31.0% Black, 24.6% Hispanic), of which 111 (2.1%) had incident stroke during 8.0±1.3 years of follow-up. In the low, medium, and high neighborhood segregation categories there were 1,603 (29.6%), 1,667 (30.8%), and 2,141 (39.6%) individuals. High neighborhood segregation was more common in Black (45.7%) and Hispanic (39.7%) individuals than White (14.6%) (p<0.001). In Cox regression, the interaction between race and segregation was significant (p<0.1). Compared to low segregation, high segregation among White individuals was associated with 3.1% LOWER probability of incident stroke (p<0.001, from 3.4% to 0.3%), among Black individuals with 1.2% HIGHER probability of incident stroke (p=0.046, from 0.7% to 1.9%), and in Hispanic individuals there was an insignificant difference (p=0.842).
Conclusions:
For White individuals, a high level of segregation is associated with a lower probability of stroke, but for Black individuals with a higher probability of stroke. These findings call for further research into the mechanisms by which neighborhood segregation may mediate stroke risk.
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22
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Nogueira RG, Pinheiro A, Brinjikji W, Abbasi M, Al-Bayati AR, Mohammaden M, Viana LS, Ferreira F, Abdelhamid HM, Bhatt N, Kvamme P, Layton K, Delgado Almandoz J, Hanel R, Mendes Pereira V, Almekhlafi M, Yoo AJ, Jahromi BS, Gounis MJ, Patel BM, Arturo Larco J, Fitzgerald S, Mereuta OM, Doyle K, Savastano L, Cloft HJ, Thacker I, Kayan Y, Copelan A, Aghaebrahim A, Sauvageau E, Demchuk AM, Bhuva P, Soomro J, Nazari P, Cantrell D, Puri AS, Entwistle J, Polley EC, Frankel MR, Kallmes DF, Haussen DC. Abstract 99: Clot Composition And Reperfusion Outcomes In 1430 Mechanical Thrombectomy Patients: Analysis Of The Stroke Thromboembolism Registry Of Imaging And Pathology. Stroke 2023. [DOI: 10.1161/str.54.suppl_1.99] [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: 02/05/2023]
Abstract
Background:
Understanding clot composition may allow for better technical planning and improved outcomes in mechanical thrombectomy (MT). We sought to correlate clot composition with reperfusion outcomes in MT.
Methods:
Clinical, imaging, and clot data from patients enrolled in the STRIP Registry from September 2016 to September 2020 were analyzed. Samples were fixed in 10% phosphate-buffered formalin and stained with hematoxylin and eosin and Martius Scarlett Blue. Percent composition, richness, and gross appearance were evaluated. Outcome measures included the rate of First-Pass Effect (mTICI2c/3, FPE) and the number of device passes.
Results:
A total of 1430 patients (mean age, 68.4±13.5years; median [IQR] baseline NIHSS,17.2 [10.5-23]; IV-tPA use, 36%; Stent-Retrievers [SR], 27%; Contact Aspiration [CA], 27%; Combined SR + CA, 43%) were included. The median [IQR] number of passes was 1 [1-2]. FPE was achieved in 39.3% of the cases. There was no association between percent histological composition or clot richness and FPE in the overall population. However, the combined technique resulted in lower FPE rates for RBC-rich (P<0.0001), platelet-rich (P=0.003), and mixed (P<0.0001) clots. Fibrin-rich and platelet-rich clots required a higher number of passes compared to RBC-rich and mixed clots (median, 2 and 1.5 vs.1, respectively, P=0.02). CA displayed a trend towards a higher number of passes with fibrin-rich clots (2 vs.1, P=0.12). By gross appearance, mixed/heterogeneous clots had lower FPE rates than red and white clots.
Conclusion:
Despite the lack of correlation between clot histology and FPE in the overall population, our study adds to the growing body of evidence supporting the notion that clot composition influences reperfusion treatment strategy outcomes. Additional studies are needed.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ricardo Hanel
- Neurosurgery, Baptist Med Cntr Jacksonville, Jacksonville, FL
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jazba Soomro
- Neurointervention, Texas Stroke Institute, Dallas-Fort Worth, TX
| | | | | | | | | | - Eric C Polley
- Div of Biomedical Statistics and Informatics, Mayo Clinic College of Medicine, Rochester, MN
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23
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de Havenon A, Bangad A, Yaghi S, Abbasi M, Sharma R, Sheth KN. Abstract 58: ASCVD Risk Score Trajectories During 25 Years Of Follow-up And Risk Of Ischemic Stroke And Cognitive Impairment. Stroke 2023. [DOI: 10.1161/str.54.suppl_1.58] [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: 02/05/2023]
Abstract
Background:
An individual’s atherosclerotic burden is associated with the cumulative exposure to vascular risk factors across the lifespan. We used the ARIC study to identify trajectories of atherosclerotic cardiovascular disease (ASCVD) risk over time and to evaluate their association with risk of stroke and cognitive impairment.
Methods:
We included cardiovascular disease-free ARIC participants with low or borderline ASCVD risk at the baseline study visit (10-year ASCVD Risk Score <7.5%) and those who attended all 5 ARIC study visits (~25 years of follow-up). We used group-based trajectory modelling to define ASCVD trajectories. We report baseline characteristics of individuals in the four trajectories and the incidence of stroke (ischemic and hemorrhagic) and cognitive impairment (either MCI or dementia) during follow-up.
Results:
We included 3,470 ARIC participants. The four trajectories of ASCVD risk during follow-up are in Figure 1. The low and high increase trajectories comprised 46.5% and 7.0% of participants. Vascular risk factors such as hypertension, diabetes, hyperlipidemia, and obesity were more common in trajectories with higher ASCVD risk (Table 1). The rate of ARIC-adjudicated stroke during follow-up increased from 1.6% in the low trajectory to 4.6% in the high trajectory (p<0.001), of self-reported stroke from 8.6% to 16.6% (p<0.001), and of ARIC-adjudicated cognitive impairment from 16.0% to 35.0% (p<0.001).
Conclusions:
We found four main trajectories of ASCVD risk over 25 years of follow-up in individuals with baseline low or borderline ASCVD risk, which are associated with the risk of incident stroke and cognitive impairment.
assessment.
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24
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Movaffagh M, Abbasi M, Zolfaghari A. CFD investigation of PWR channel shapes effects during rolling motion under normal and accident condition. ANN NUCL ENERGY 2023. [DOI: 10.1016/j.anucene.2022.109574] [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: 11/16/2022]
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25
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Salem M, Feizollahi N, Jabari A, Golmohammadi MG, Shirinsokhan A, Ghanami Gashti N, Bashghareh A, Nikmahzar A, Abbasi Y, Naji M, Abbasi M. Differentiation of human spermatogonial stem cells using a human decellularized testicular scaffold supplemented by platelet-rich plasma. Artif Organs 2023; 47:840-853. [PMID: 36721957 DOI: 10.1111/aor.14505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 02/02/2023]
Abstract
BACKGROUND Effective culture systems for attachment, migration, proliferation, and differentiation of spermatogonial stem cells (SSCs) can be a promising therapeutic modality for preserving male fertility. Decellularized extracellular matrix (ECM) from native testis tissue creates a local microenvironment for testicular cell culture. Furthermore, platelet-rich plasma (PRP) contains various growth factors for the proliferation and differentiation of SSCs. METHODS In this study, human testicular cells were isolated and cultured for 4 weeks, and SSCs were characterized using immunocytochemistry (ICC) and flow cytometry. Human testicular tissue was decellularized (0.3% SDS, 1% Triton), and the efficiency of the decellularization process was confirmed by histological staining and DNA content analysis. SSCs were cultured on the human decellularized testicular matrix (DTM) for 4 weeks. The viability and the expression of differentiation genes were evaluated by MTT and real-time polymerase chain reaction (PCR), respectively. RESULTS Histological evaluation and DNA content analysis showed that the components of ECM were preserved during decellularization. Our results showed that after 4 weeks of culture, the expression levels of BAX, BCL-2, PLZF, and SCP3 were unchanged, while the expression of PRM2 significantly increased in the cells cultured on DTM supplemented with PRP (ECM-PRP). In addition, the expression of GFRA1 was significantly decreased in the ECM group compared to the control and PRP groups. Furthermore, the MTT test indicated that viability was significantly enhanced in cells plated on DTM supplemented with PRP. CONCLUSION Our study demonstrated that DTM supplemented with PRP can provide an effective culture system for the differentiation and viability of SSCs.
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Affiliation(s)
- Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Narjes Feizollahi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ayob Jabari
- Department of Obstetrics and Gynecology, Molud Infertility Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | | | - Armaghan Shirinsokhan
- Department of Biology, Faculty of Sciences, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - Nasrin Ghanami Gashti
- Biomaterials Cluster, Bernal Institute, University of Limerick, Limerick, Ireland, Limerick, Ireland.,School of Engineering, University of Limerick, Limerick, Ireland, Limerick, Ireland
| | - Alieh Bashghareh
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Aghbibi Nikmahzar
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yasaman Abbasi
- Biomaterials Cluster, Bernal Institute, University of Limerick, Limerick, Ireland, Limerick, Ireland.,School of Engineering, University of Limerick, Limerick, Ireland, Limerick, Ireland.,School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Naji
- School of Engineering, University of Limerick, Limerick, Ireland, Limerick, Ireland.,School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.,Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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26
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Das S, Goldstein ED, de Havenon A, Abbasi M, Nguyen TN, Aguiar de Sousa D, Yaghi S. Composition, Treatment, and Outcomes by Radiologically Defined Thrombus Characteristics in Acute Ischemic Stroke. Stroke 2023; 54:1685-1694. [PMID: 36661035 DOI: 10.1161/strokeaha.122.038563] [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: 01/21/2023]
Abstract
Occlusive and nonocclusive cervicocephalic thrombi can be encountered during neurovascular imaging in patients with acute ischemic stroke. Radiographic and morphological characteristics on basic and advanced imaging modalities can be important clues towards determination of pathomechanism and the choice of acute and subacute treatment modalities. The aim of this review article is to evaluate the epidemiology, radiographic properties, histologic clot composition of cervicocephalic arterial thrombi, and its response to various medical and endovascular therapy modalities. Future studies are needed to derive and validate a classification system for extracranial and intracranial partially occlusive thrombi to enable further testing of various stroke treatment and prevention strategies in these patients.
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Affiliation(s)
- Saurav Das
- Department of Neurology, University of Kentucky College of Medicine, Lexington (S.D.)
| | - Eric D Goldstein
- Department of Neurology, The Warren Alpert Medical School of Brown University, Providence, RI (E.D.G., S.Y.)
| | - Adam de Havenon
- Department of Neurology, Yale School of Medicine, New Haven, CT (A.d.H., M.A.)
| | - Mehdi Abbasi
- Department of Neurology, Yale School of Medicine, New Haven, CT (A.d.H., M.A.)
| | - Thanh N Nguyen
- Department of Neurology, Boston University Chobanian & Avedisian School of Medicine, MA (T.N.N.)
| | - Diana Aguiar de Sousa
- Stroke Center, Lisbon Central University Hospital and Faculty of Medicine, University of Lisbon, Portugal (D.A.d.S.)
| | - Shadi Yaghi
- Department of Neurology, The Warren Alpert Medical School of Brown University, Providence, RI (E.D.G., S.Y.)
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27
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Shen Z, Plouraboué F, Lintuvuori JS, Zhang H, Abbasi M, Misbah C. Anomalous Diffusion of Deformable Particles in a Honeycomb Network. Phys Rev Lett 2023; 130:014001. [PMID: 36669217 DOI: 10.1103/physrevlett.130.014001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/15/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Transport of deformable particles in a honeycomb network is studied numerically. It is shown that the particle deformability has a strong impact on their distribution in the network. For sufficiently soft particles, we observe a short memory behavior from one bifurcation to the next, and the overall behavior consists in a random partition of particles, exhibiting a diffusionlike transport. On the contrary, stiff enough particles undergo a biased distribution whereby they follow a deterministic partition at bifurcations, due to long memory. This leads to a lateral ballistic drift in the network at small concentration and anomalous superdiffusion at larger concentration, even though the network is ordered. A further increase of concentration enhances particle-particle interactions which shorten the memory effect, turning the particle anomalous diffusion into a classical diffusion. We expect the drifting and diffusive regime transition to be generic for deformable particles.
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Affiliation(s)
- Zaiyi Shen
- Université Grenoble Alpes, CNRS, LIPHY, F-38000 Grenoble, France
- Université de Bordeaux, CNRS, LOMA (UMR 5798), F-33405 Talence, France
| | - Franck Plouraboué
- Institut de Mécanique des Fluides de Toulouse, IMFT, Université de Toulouse, CNRS, Toulouse, France
| | - Juho S Lintuvuori
- Université de Bordeaux, CNRS, LOMA (UMR 5798), F-33405 Talence, France
| | - Hengdi Zhang
- Shenzhen Sibionics Co. Ltd., Shenzhen 518000, People's Republic of China
| | - Mehdi Abbasi
- Université Grenoble Alpes, CNRS, LIPHY, F-38000 Grenoble, France
| | - Chaouqi Misbah
- Université Grenoble Alpes, CNRS, LIPHY, F-38000 Grenoble, France
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Liu Y, Brinjikji W, Abbasi M, Dai D, Arturo Larco JL, Madhani SI, Shahid AH, Mereuta OM, Nogueira RG, Kvamme P, Layton KF, Delgado Almandoz JE, Hanel RA, Mendes Pereira V, Almekhlafi MA, Yoo AJ, Jahromi BS, Gounis MJ, Patel B, Fitzgerald S, Doyle K, Haussen DC, Al-Bayati AR, Mohammaden M, Pisani L, Rodrigues GM, Thacker IC, Kayan Y, Copelan A, Aghaebrahim A, Sauvageau E, Demchuk AM, Bhuva P, Soomro J, Nazari P, Cantrell DR, Puri AS, Entwistle J, Kadirvel R, Cloft HJ, Kallmes DF, Savastano L. Quantification of clot spatial heterogeneity and its impact on thrombectomy. J Neurointerv Surg 2022; 14:1248-1252. [PMID: 34911736 DOI: 10.1136/neurintsurg-2021-018183] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/29/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Compositional and structural features of retrieved clots by thrombectomy can provide insight into improving the endovascular treatment of ischemic stroke. Currently, histological analysis is limited to quantification of compositions and qualitative description of the clot structure. We hypothesized that heterogeneous clots would be prone to poorer recanalization rates and performed a quantitative analysis to test this hypothesis. METHODS We collected and did histology on clots retrieved by mechanical thrombectomy from 157 stroke cases (107 achieved first-pass effect (FPE) and 50 did not). Using an in-house algorithm, the scanned images were divided into grids (with sizes of 0.2, 0.3, 0.4, 0.5, and 0.6 mm) and the extent of non-uniformity of RBC distribution was computed using the proposed spatial heterogeneity index (SHI). Finally, we validated the clinical significance of clot heterogeneity using the Mann-Whitney test and an artificial neural network (ANN) model. RESULTS For cases with FPE, SHI values were smaller (0.033 vs 0.039 for grid size of 0.4 mm, P=0.028) compared with those without. In comparison, the clot composition was not statistically different between those two groups. From the ANN model, clot heterogeneity was the most important factor, followed by fibrin content, thrombectomy techniques, red blood cell content, clot area, platelet content, etiology, and admission of intravenous tissue plasminogen activator (IV-tPA). No statistical difference of clot heterogeneity was found for different etiologies, thrombectomy techniques, and IV-tPA administration. CONCLUSIONS Clot heterogeneity can affect the clot response to thrombectomy devices and is associated with lower FPE. SHI can be a useful metric to quantify clot heterogeneity.
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Affiliation(s)
- Yang Liu
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Waleed Brinjikji
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mehdi Abbasi
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Daying Dai
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | | | | | - Raul G Nogueira
- Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Peter Kvamme
- Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, USA
| | - Kennith F Layton
- NeuroInterventional Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | | | - Ricardo A Hanel
- Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Vitor Mendes Pereira
- Division of Neuroradiology, Department of Medical Imaging and Division of Neurosurgery, Department of Surgery, University Health Network - Toronto Western Hospital, Toronto, Ontario, Canada
| | - Mohammed A Almekhlafi
- Departments of Clinical Neurosciences, Radiology, and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Albert J Yoo
- Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Babak S Jahromi
- Radiology and Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Matthew J Gounis
- Radiology, New England Center for Stroke Research, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Biraj Patel
- Radiology and Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | - Seán Fitzgerald
- Department of Physiology and CURAM-SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - Karen Doyle
- Department of Physiology and CURAM-SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - Diogo C Haussen
- Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | | | - Leonardo Pisani
- Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Ike C Thacker
- NeuroInterventional Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Yasha Kayan
- NeuroInterventional Radiology, Abbot Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Alexander Copelan
- NeuroInterventional Radiology, Abbot Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Amin Aghaebrahim
- Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Eric Sauvageau
- Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Andrew M Demchuk
- Departments of Clinical Neurosciences, Radiology, and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Parita Bhuva
- Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Jazba Soomro
- Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Pouya Nazari
- Radiology and Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Donald Robert Cantrell
- Radiology and Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Ajit S Puri
- Radiology, New England Center for Stroke Research, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - John Entwistle
- Radiology and Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | | | - Harry J Cloft
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - David F Kallmes
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Luis Savastano
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
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Larco JA, Abbasi M, Madhani SI, Mereuta MO, Liu Y, Dai D, Kadirvel R, Savastano L, Kallmes DF, Brinjikji W. Correlation of Neutrophil to Lymphocyte Ratio with Expression of Neutrophil Extracellular Traps Within Stroke Emboli. Interv Neuroradiol 2022; 28:726-730. [PMID: 34878323 PMCID: PMC9706263 DOI: 10.1177/15910199211065530] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND & PURPOSE It has been hypothesized that circulating neutrophils have a direct correlation with the composition of emboli in acute ischemic stroke (AIS). The aim of this study is to evaluate the association between neutrophil-lymphocyte ratio (NLR) in peripheral blood and the expression of neutrophil extracellular traps (NETs) within stroke emboli. METHODS Consecutive patients with acute ischemic stroke (AIS) due to large vessel occlusion (LVO) that underwent mechanical thrombectomy (MT) were included. Patients were divided into two groups based on NLR median value. Retrieved thrombi were histologically analyzed using Martius Scarlett Blue (MSB) for main thrombus components including red blood cells (RBCs), white blood cells (WBCs), fibrin and platelet. Immunohistochemistry staining for von Willebrand Factor (vWF) and anti-citrullinated H3 (H3Cit; NETs marker) was also performed. RESULTS Samples from a total of 84 patients were included. The average percentage of RBCs, WBCs, fibrin, platelet, H3Cit, and vWF components in thrombi were 45.1%, 3.5%, 21.8%, 29.6%, 19.7% and 14.8% respectively. When stratifying by NLR group [low (≤3.94) versus high (>3.95)], high NLR group had significantly more WBCs (4.5%), fibrin (24.2%), H3Cit (22.7%) and vWF (17.1%) thrombus fractions compared to low NLR group. Additionally, RBC content (38.8%) was lower in the high NLR group. CONCLUSIONS NLR is correlated with the amounts of WBCs, fibrin, NETs and vWF within the thrombi retrieved from AIS patients due to LVO.
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Affiliation(s)
- Jorge Arturo Larco
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | | | | | - Yang Liu
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Daying Dai
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Luis Savastano
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - David F. Kallmes
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Waleed Brinjikji
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
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Larco JA, Abbasi M, Kadirvel R, Kallmes DF, Savastano LE, Brinjikji W. Intra-procedural cerebral sinus thrombosis during endovascular treatment of idiopathic intracranial hypertension. Neuroradiol J 2022; 35:654-657. [PMID: 35488380 PMCID: PMC9513914 DOI: 10.1177/19714009221096837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Stenting of the intracranial venous sinuses has shown promising results in patients who are refractory to medical treatment of idiopathic intracranial hypertension (IIH). Among the reported complications associated with this procedure, in-stent thrombosis is an unreported one. We present a case of cerebral sinus thrombosis during endovascular treatment of IIH. A 33-year-old man with multiple comorbidities was presented with non-specific vision changes and headaches. Initial workup revealed a diagnosis of idiopathic intracranial hypertension which was treated medically but with no improvement. Therefore, cerebral sinus stenting was pursued. During the procedure, an in-stent thrombus was identified which was retrieved mechanically and was sent for histological and immunohistochemical evaluation. The retrieved thrombus was predominantly composed of RBCs (57.8%) followed by fibrin (30.78%), platelet (6.4%), and WBCs (5.95%), with high expression of CitH3 (neutrophil extra cellular traps specific marker) (10.9%), and CD66 (11.35%).
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Affiliation(s)
- Jorge Arturo Larco
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | | | | | - Luis E Savastano
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Waleed Brinjikji
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
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Mahmoudi A, Abbasi M, Yuan J, Li L. Large-scale group decision-making (LSGDM) for performance measurement of healthcare construction projects: Ordinal Priority Approach. APPL INTELL 2022; 52:13781-13802. [PMID: 36091930 PMCID: PMC9449288 DOI: 10.1007/s10489-022-04094-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 11/14/2022]
Abstract
People with various skill sets and backgrounds are usually found working on projects and thus, group decision-making (GDM) is one of the most important functions within any project. However, when projects concern healthcare or other critical services for proletariat or general public (especially during COVID19), the importance of GDM can hardly be overstated. Measuring the performance of healthcare construction projects is a critical activity and should be gauged based on the input from a large number of stakeholders. Such problems are usually recognized as large-scale group decision-making (LSGDM). In the current study, we aim to propose a decision support system for measuring the performance of healthcare construction projects against a large number of experts using ordinal data. The study identifies several key indicators from literature and recorded the observations of a large number of experts about these indicators. After that, the acceptable range of complexity is specified, the Silhouette plot is provided to find the optimal number of clusters, and the ordinal K-means method is employed to cluster the experts’ opinions. Later, the confidence level is measured using a novel Weighted Kendall’s W for the optimal number of the clusters, and the threshold is checked. Finally, the conventional problem is solved using the Group Weighted Ordinal Priority Approach (GWOPA) model in multiple attributes decision making (MADM), and the performance of the projects is determined. The validity of the proposed approach is confirmed through a comparative analysis. Also, a real-world case is solved, and the performance of some healthcare construction projects in China is gauged with a comprehensive sensitivity analysis.
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Fakhrolmobasheri M, Mazaheri-Tehrani S, Kieliszek M, Zeinalian M, Abbasi M, Karimi F, Mozafari AM. COVID-19 and Selenium Deficiency: a Systematic Review. Biol Trace Elem Res 2022; 200:3945-3956. [PMID: 34739678 PMCID: PMC8569840 DOI: 10.1007/s12011-021-02997-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/24/2021] [Indexed: 12/16/2022]
Abstract
Several studies have indicated that selenium deficiency may be detrimental in the context of various viral disorders, and in the case of COVID-19, several studies have reported heterogeneous results concerning the association of selenium deficiency with the severity of disease. To summarize the available data surrounding the association of body selenium levels with the outcomes of COVID-19, a systematic search was performed in the Medline database (PubMed), Scopus, Cochrane Library, Embase, and Web of Science using keywords including "SARS-CoV-2," "COVID-19," and "selenium," Studies evaluating the association of COVID-19 with body selenium levels were included. Among 1,862 articles viewed in the database search, 10 articles were included after title, abstract, and full-text review. One study was further included after searching the literature again for any newly published articles. Out of 11 included studies, 10 studies measured serum selenium level, and one study investigated urinary selenium level. Three of 10 studies measured serum SELENOP level as well as selenium level. Glutathione peroxidase-3 level in serum was also assessed in one study. The reported outcomes were severity, mortality, and risk of COVID-19. Nine studies indicated that a lower serum selenium level is associated with worse outcomes. Two studies reported no significant association between serum selenium level and COVID-19. In one study, urinary selenium level was reported to be higher in severe and fatal cases compared to non-severe and recovered patients, respectively. In most cases, selenium deficiency was associated with worse outcomes, and selenium levels in COVID-19 patients were lower than in healthy individuals. Thus, it could be concluded that cautious selenium supplementation in COVID-19 patients may be helpful to prevent disease progression. However, randomized clinical trials are needed to confirm this.
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Affiliation(s)
| | - Sadegh Mazaheri-Tehrani
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
| | - Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159C, 02-776, Warsaw, Poland.
| | - Mehrdad Zeinalian
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran.
| | - Mehdi Abbasi
- School of Medicine, Isfahan University of Medical Sciences, 81746-73461, Esfahan, Iran
| | - Fateme Karimi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
| | - Amir Mohamad Mozafari
- Medical Library and Information Sciences Department, Health Information Technology Research Center, School of Management and Medical Information Sciences, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
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33
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Behzadi M, Abbasi M, Zolfaghari A, Norouzi A, Mirzaee M. Analysis of two-phase flow in non-inertial coordinate using combination of three-fluid model and drift flux model. Progress in Nuclear Energy 2022. [DOI: 10.1016/j.pnucene.2022.104334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Alizadeh A, Abbasi M, Minuchehr A, Zolfaghari A. A novel adaptive mesh free approach for even- parity neutron transport equation. ANN NUCL ENERGY 2022. [DOI: 10.1016/j.anucene.2022.109253] [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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Gupta L, Pakhchanian H, Khan H, Raiker R, Abbasi M, Deyoung C, Kardes S, Ahmed S, Kavadichanda C, Sen P, Aggarwal R. POS0198 COVID-19 OUTCOMES IN PATIENTS WITH DERMATOMYOSITIS: A REGISTRY-BASED COHORT ANALYSIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4695] [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: 11/04/2022]
Abstract
BackgroundDermatomyositis (DM) patients have fewer risks of COVID-19 infection compared to the general population, however, certain subgroups with DM have worse outcomes. Men. African Americans, those with interstitial lung disease, exhibited higher risks of severe COVID-19. DMARD and glucocorticoid use was associated with frequent hospitalisations and severe sepsis.ObjectivesRheumatic diseases (RDs) like DM, are previously known to be vulnerable towards various types of infections due to its aggressive activity mandating high dose immunosuppressive therapy. The severity of COVID-19 in RDs is limited in literature due to the heterogeneous nature of the condition. Therefore, specific details on mortality is essential to navigate any precautions required in the treatment.MethodsRetrospective data of individuals with DM and COVID-19 and the general population with COVID-19 between January 2020 to August 2020 was retrieved from the TriNetX database. A one-to-one matched COVID-19 positive control was selected using propensity score (PS) matching. We assessed COVID-19 outcomes such as mortality, hospitalisation, ICU admission, severe COVID-19, mechanical ventilation (MV), acute kidney injury (AKI), venous thromboembolism (VTE), ischemic stroke, acute respiratory distress syndrome (ARDS), renal replacement therapy (RRT) and sepsis. Subgroup analyses included gender, race, ILD, cancer patients, disease-modifying rheumatic drugs (DMARDs) use, and glucocorticoids (GC) use (Figure 1).Figure 1.Overview of studyResultsWe identified 5,574 DM patients with COVID-19, and 5,574 general population with COVID-19 (controls). DM with COVID-19 had a lower risk of mortality in comparison to controls [RR 0.76], hospitalisation [RR 0.8], severe COVID-19 [RR 0.76], AKI [RR 0.83], and sepsis [RR 0.73]. Males and African Americans were more likely to develop AKI [RR 1.35, 1.65], while African Americans had higher odds for severe COVID-19 [RR 1.62] and VTE [RR 1.54]. DM with ILD group also experienced higher odds for severe COVID-19 infection [RR 1.64], and VTE [RR 2.06] (Figure 1).DM patients receiving DMARDs and glucocorticoids had higher odds for hospitalisation [RR 1.46, 2.12], and sepsis [RR 3.25] Subgroup analysis of neoplasms amongst DM patients with COVID-19 was inadequate for meaningful comparison (Figure 1).ConclusionDM patients are protected for certain aspects of COVID-19 disease, including severe COVID-19, hospitalization, and mortality. The African American race, male gender, ILD, DMARDS and glucocorticoid users, are associated with poor outcomes.Disclosure of InterestsLatika Gupta: None declared, Haig Pakhchanian: None declared, Hiba Khan: None declared, Rahul Raiker: None declared, Maryam Abbasi: None declared, Charles DeYoung: None declared, Sinan Kardes Grant/research support from: SK has received congress travel, accommodation, and participation fee support (12th Anatolian Rheumatology Days) from Abbvie, Sakir Ahmed Speakers bureau: SA has received honorarium as speaker for Pfizer, Chengappa Kavadichanda: None declared, Parikshit Sen: None declared, Rohit Aggarwal Consultant of: RA has/had a consultancy relationship with and/or has received research funding from the following companies-Bristol Myers-Squibb, Pfizer, Genentech, Octapharma, CSL Behring, Mallinckrodt, AstraZeneca, Corbus, Kezar, and Abbvie, Janssen, Alexion, Argenx, Q32, EMD-Serono, Boehringer Ingelheim, Roivant., Grant/research support from: RA has/had a consultancy relationship with and/or has received research funding from the following companies-Bristol Myers-Squibb, Pfizer, Genentech, Octapharma, CSL Behring, Mallinckrodt, AstraZeneca, Corbus, Kezar, and Abbvie, Janssen, Alexion, Argenx, Q32, EMD-Serono, Boehringer Ingelheim, Roivant.
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36
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Mereuta OM, Abbasi M, Arturo Larco JL, Dai D, Liu Y, Arul S, Kadirvel R, Hanel RA, Yoo AJ, Almekhlafi MA, Layton KF, Delgado Almandoz JE, Kvamme P, Mendes Pereira V, Jahromi BS, Nogueira RG, Gounis MJ, Patel B, Aghaebrahim A, Sauvageau E, Bhuva P, Soomro J, Demchuk AM, Thacker IC, Kayan Y, Copelan A, Nazari P, Cantrell DR, Haussen DC, Al-Bayati AR, Mohammaden M, Pisani L, Rodrigues GM, Puri AS, Entwistle J, Meves A, Savastano L, Cloft HJ, Nimjee SM, McBane Ii RD, Kallmes DF, Brinjikji W. Correlation of von Willebrand factor and platelets with acute ischemic stroke etiology and revascularization outcome: an immunohistochemical study. J Neurointerv Surg 2022; 15:488-494. [PMID: 35595407 DOI: 10.1136/neurintsurg-2022-018645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/01/2022] [Indexed: 01/19/2023]
Abstract
BACKGROUND Platelets and von Willebrand factor (vWF) are key components of acute ischemic stroke (AIS) emboli. We aimed to investigate the CD42b (platelets)/vWF expression, its association with stroke etiology and the impact these components may have on the clinical/procedural parameters. METHODS CD42b/vWF immunostaining was performed on 288 emboli collected as part of the multicenter STRIP Registry. CD42b/VWF expression and distribution were evaluated. Student's t-test and χ2 test were performed as appropriate. RESULTS The mean CD42b and VWF content in clots was 44.3% and 21.9%, respectively. There was a positive correlation between platelets and vWF (r=0.64, p<0.001**). We found a significantly higher vWF level in the other determined etiology (p=0.016*) and cryptogenic (p=0.049*) groups compared with cardioembolic etiology. No significant difference in CD42b content was found across the etiology subtypes. CD42b/vWF patterns were significantly associated with stroke etiology (p=0.006*). The peripheral pattern was predominant in atherosclerotic clots (36.4%) while the clustering (patchy) pattern was significantly associated with cardioembolic and cryptogenic origin (66.7% and 49.8%, respectively). The clots corresponding to other determined etiology showed mainly a diffuse pattern (28.1%). Two types of platelets were distinguished within the CD42b-positive clusters in all emboli: vWF-positive platelets were observed at the center, surrounded by vWF-negative platelets. Thrombolysis correlated with a high platelet content (p=0.03*). vWF-poor and peripheral CD42b/vWF pattern correlated with first pass effect (p=0.03* and p=0.04*, respectively). CONCLUSIONS The vWF level and CD42b/vWF distribution pattern in emboli were correlated with AIS etiology and revascularization outcome. Platelet content was associated with response to thrombolysis.
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Affiliation(s)
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jorge L Arturo Larco
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Daying Dai
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Yang Liu
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Santhosh Arul
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Ricardo A Hanel
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Albert J Yoo
- Department of Neurointervention, Texas Stroke Institute, Dallas-Fort Worth, Texas, USA
| | - Mohammed A Almekhlafi
- Departments of Clinical Neurosciences, Radiology and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kennith F Layton
- Department of Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Josser E Delgado Almandoz
- Department of NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Peter Kvamme
- Department of Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, USA
| | - Vitor Mendes Pereira
- Departments of Medical Imaging and Surgery, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Babak S Jahromi
- Departments of Radiology and Neurosurgery, Northwestern University, Chicago, Illinois, USA
| | - Raul G Nogueira
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Matthew J Gounis
- Department of Radiology, University of Massachusetts Medical School, New England Center for Stroke Research, Worcester, Massachusetts, USA
| | - Biraj Patel
- Departments of Radiology and Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | - Amin Aghaebrahim
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Eric Sauvageau
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Parita Bhuva
- Department of Neurointervention, Texas Stroke Institute, Dallas-Fort Worth, Texas, USA
| | - Jazba Soomro
- Department of Neurointervention, Texas Stroke Institute, Dallas-Fort Worth, Texas, USA
| | - Andrew M Demchuk
- Departments of Clinical Neurosciences, Radiology and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ike C Thacker
- Department of Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Yasha Kayan
- Department of NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Alexander Copelan
- Department of NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Pouya Nazari
- Departments of Radiology and Neurosurgery, Northwestern University, Chicago, Illinois, USA
| | - Donald Robert Cantrell
- Departments of Radiology and Neurosurgery, Northwestern University, Chicago, Illinois, USA
| | - Diogo C Haussen
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Alhamza R Al-Bayati
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Mahmoud Mohammaden
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Leonardo Pisani
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Gabriel Martins Rodrigues
- Department of Neurology, Emory University, Atlanta, Georgia, USA.,Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Ajit S Puri
- Department of Radiology, University of Massachusetts Medical School, New England Center for Stroke Research, Worcester, Massachusetts, USA
| | - John Entwistle
- Departments of Radiology and Neurosurgery, Carilion Clinic, Roanoke, Virginia, USA
| | - Alexander Meves
- Department of Dermatology, Mayo Clinic, Rochester, Minnesota, USA
| | - Luis Savastano
- Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Harry J Cloft
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Shahid M Nimjee
- Department of Neurological Surgery, Ohio State University, Columbus, Ohio, USA
| | - Robert D McBane Ii
- Gonda Vascular Center, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - David F Kallmes
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Waleed Brinjikji
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
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Abbasi M, Dastar B, Afzali N, Shargh MS, Hashemi SR. The Effects of Nano and Micro Particle Size of Zinc Oxide on Performance, Fertility, Hatchability, and Egg Quality Characteristics in Laying Japanese Quail. Biol Trace Elem Res 2022; 200:2338-2348. [PMID: 34351562 DOI: 10.1007/s12011-021-02848-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 07/20/2021] [Indexed: 10/20/2022]
Abstract
The current trial was conducted by using the 288 Japanese quails to evaluate the effects of a zinc-deficient diet supplemented with nano and micro zinc oxide on performance, fertility, hatchability, and egg quality characteristics. In this experiment, birds were randomly allocated to 9 dietary treatments includes diets supplemented with nano or micro particles of zinc oxide (amount of ZnO supplement for each treatment) to supply 49, 74, 99, and 124 mg zinc per kilogram of diet in a factorial arrangement (2 × 4) and a control non supplemented diet (24 mg/kg) with four replicates of eight birds (six females and two males) in each pen. Birds were fed the experimental diets from 47 to 75 days of age and had free access to water and feed during the experimental period. Results showed that Zn supplementation, regardless of particle size, improved the eggshell thickness (P < 0.01). A significant (P < 0.05) interaction was observed between zinc level and ZnO particle size for Shell breaking strength. Quails fed diets supplement with ZnO showed significantly higher egg weight and eggshell surface (P < 0.05) as compared with birds fed a non-supplemented control diet. Results obtained here showed that supplementation of nano ZnO enhanced fertility considerably. Application of non-linear quadratic models showed that the maximum egg production percentage was achieved when 67 or 72 mg/kg of dietary zinc was supplied from nano and micro ZnO, respectively. This result indicated that nano ZnO could reduce the zinc requirement in laying Japanese quail.
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Affiliation(s)
- M Abbasi
- Department of Animal & Poultry Nutrition, Gorgan University of Agricultural Sciences & Natural Resources, PO Box, 49156-77555, Gorgan, Iran.
| | - B Dastar
- Department of Animal & Poultry Nutrition, Gorgan University of Agricultural Sciences & Natural Resources, PO Box, 49156-77555, Gorgan, Iran
| | - N Afzali
- Department of Animal Science, University of Birjand, PO Box, 97198-66981, Birjand, Iran
| | - M Shams Shargh
- Department of Animal & Poultry Nutrition, Gorgan University of Agricultural Sciences & Natural Resources, PO Box, 49156-77555, Gorgan, Iran
| | - S R Hashemi
- Department of Animal & Poultry Nutrition, Gorgan University of Agricultural Sciences & Natural Resources, PO Box, 49156-77555, Gorgan, Iran
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Liu Y, Dai D, Abbasi M, Mereuta OM, Gamb SI, Kadirvel R, Kallmes DF, Brinjikji W. An in vitro model for Extracellular DNA Traps (ETs)-rich Human Thrombus Analogs. J Neurointerv Surg 2022; 15:589-593. [PMID: 35483911 DOI: 10.1136/neurintsurg-2022-018790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/16/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Extracellular DNA traps (ETs) have important implications in both thrombosis and thrombolysis. Thus, developing benchtop thrombus analogs that recapitulate clinical ETs is potentially of great value for preclinical development and testing of thrombolytic agents and thrombectomy devices. In this study, we aimed to develop ETs-rich thrombus analogs for preclinical testing. METHODS Red blood cell (RBC)-rich, fibrin-rich, and platelet-rich thrombus analogs were created using human whole blood, platelet-poor plasma, and platelet-rich plasma obtained from the blood bank following institutional approval. Peripheral blood mononuclear cells (9.9×106 cells/mL) isolated from human whole blood and lipopolysaccharide (1 µg/mL) were added to induce ETs. Histochemical, immunohistochemistry and immunofluorescence were used to identify thrombus components and ETs. Scanning electronic microscopy was used to investigate the ultrastructure of the thrombus analogs. The thrombus compositions, morphologic features of ETs and citrullinated histone H3 (H3Cit) expression were compared with those of thrombi retrieved from patients by thrombectomy. RESULTS ETs-rich thrombus analogs were more compacted th-an the ETs-poor thrombus analogs. ETs were identified in both ETs-rich thrombus analogs and patient thrombi showing morphologic features including nuclear lobulation, nuclear swelling, diffused chromatin within cytoplasm, DNA/chromatin extending intracellularly and extracellularly, and extracellular chromatin patches and bundles. In the ETs-poor thrombus analogs, ETs were not observed and H3Cit expression was absent to minimal. The compositions and H3Cit expression in the ETs-rich thrombus analogs fell in the range of patient thrombi. CONCLUSIONS ETs-rich thrombus analogs can be consistently created in vitro and may benefit the preclinical development and testing of new thrombolytic agents and thrombectomy devices.
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Affiliation(s)
- Yang Liu
- Radiology, Mayo Clinic, Rochester, Minnesota, USA.,Global Institute of Future Technology, Shanghai Jiao Tong University, Shanghai, China
| | - Daying Dai
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Mehdi Abbasi
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Scott I Gamb
- Electron Microscopy Core Facility, Mayo Clinic, Rochester, Minnesota, USA
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Arturo Larco JL, Madhani SI, Liu Y, Abbasi M, Shahid AH, Mereuta OM, Kadirvel R, Cloft HJ, Kallmes DF, Brinjikji W, Savastano L. Human "live cadaver" neurovascular model for proximal and distal mechanical thrombectomy in stroke. J Neurointerv Surg 2022; 15:465-472. [PMID: 35418449 DOI: 10.1136/neurintsurg-2022-018686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/30/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Preclinical testing platforms that accurately replicate complex human cerebral vasculature are critical to advance neurointerventional knowledge, tools, and techniques. Here, we introduced and validated a human "live cadaveric" head-and-neck neurovascular model optimized for proximal and distal vascular occlusion and recanalization techniques. METHODS Human cadaveric head-and-neck specimens were cannulated bilaterally in the jugular veins, carotid, and vertebral arteries. Specimens were then coupled with modular glass models of the aorta and extracranial carotid arteries, as well as radial and femoral access ports. Intracranial physiological flow was simulated using a flow-delivery system and blood-mimicking fluid. Baseline anatomy, histological, and mechanical properties of cerebral arteries were compared with those of fresh specimens. Radiopaque clot analogs were embolized to replicate proximal and distal arterial occlusions, followed by thrombectomy. Experienced interventionalists scored the model on different aspects. RESULTS Compared with counterpart fresh human arteries, formalin-fixed arteries showed similar mechanical properties, including maximum stretch, increased tensile strength/stiffness, and friction coefficients were also not significantly different. On histology, minimal endothelial damage was noted in arteries after 3 months of light fixation, otherwise the arterial wall maintained the structural integrity. Contrast angiographies showed no micro- or macro-vasculature obstruction. Proximal and distal occlusions created within the middle cerebral arteries were consistently obtained and successfully recanalized. Additionally, interventionists scored the model highly realistic, indicating great similarity to patients' vasculature. CONCLUSIONS The human "live cadaveric" neurovascular model accurately replicates the anatomy, mechanics, and hemodynamics of cerebral vasculature and allows the performance of neurointerventional procedures equivalent to those done in patients.
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Affiliation(s)
- Jorge L Arturo Larco
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA.,Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Yang Liu
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA.,Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Mehdi Abbasi
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Oana Madalina Mereuta
- Radiology, Mayo Clinic, Rochester, Minnesota, USA.,CÚRAM-SFI Research Centre for Medical Devices and Physiology Department, National University of Ireland Galway, Galway, Ireland
| | | | | | | | - Waleed Brinjikji
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA.,Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Luis Savastano
- Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA .,Radiology, Mayo Clinic, Rochester, Minnesota, USA
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Alsunaid S, Caputo V, Stryker K, Abbasi M, Borgi J, Forest S, Mansour A. Atypical HUS Unmasked by Infection and Calcineurin Inhibitors Post Lung Transplant. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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41
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Brinjikji W, Abbasi M, Mereuta OM, Fitzgerald S, Larco JA, Dai D, Kadirvel R, Nogueira RG, Kvamme P, Layton KF, Delgado JE, Hanel RA, Pereira VM, Almekhlafi MA, Yoo AJ, Jahromi BS, Gounis MJ, Patel BM, Savastano LE, Cloft HJ, Haussen DC, Al-Bayati A, Mohammaden M, Pisani L, Rodrigues G, Thacker IC, Kayan Y, Copelan AZ, Aghaebrahim A, Sauvageau E, Demchuk AM, Bhuva P, Soomro J, Nazari P, Cantrell DR, Puri AS, Doyle KM, Entwistle J, Kallmes DF. Histological composition of retrieved emboli in acute ischemic stroke is independent of pre-thrombectomy alteplase use. J Stroke Cerebrovasc Dis 2022; 31:106376. [PMID: 35183984 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106376] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/23/2022] [Accepted: 01/26/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Given recent evidence suggesting the clot composition may be associated with revascularization outcomes and stroke etiology, clot composition research has been a topic of growing interest. It is currently unclear what effect, if any, pre-thrombectomy thrombolysis has on clot composition. Understanding this association is important as it is a potential confounding variable in clot composition research. We retrospectively evaluated the composition of retrieved clots from ischemic stroke patients who did and did not receive pre-treatment tPA to study the effect of tPA on clot composition. MATERIALS AND METHODS Consecutive patients enrolled in the Stroke Thromboembolism Registry of Imaging and Pathology (STRIP) were included in this study. All patients underwent mechanical thrombectomy and retrieved clots were sent to a central core lab for processing. Histological analysis was performed using Martius Scarlett Blue (MSB) staining and area of the clot was also measured on the gross photos. Student's t test was used for continuous variables and chi-squared test for categorical variables. RESULTS A total of 1430 patients were included in this study. Mean age was 68.4±13.5 years. Overall rate of TICI 2c/3 was 67%. A total of 517 patients received tPA (36%) and 913 patients did not (64%). Mean RBC density for the tPA group was 42.97±22.62% compared to 42.80±23.18% for the non-tPA group (P=0.89). Mean WBC density for the tPA group was 3.74±2.60% compared to 3.42±2.21% for the non-tPA group (P=0.012). Mean fibrin density for the tPA group was 26.52±15.81% compared to 26.53±15.34% for the non-tPA group (P=0.98). Mean platelet density for the tPA group was 26.22±18.60% compared to 26.55±19.47% for the non-tPA group (P=0.75). tPA group also had significantly smaller clot area compared to non-tPA group. CONCLUSIONS Our study 1430 retrieved emboli and ischemic stroke patients shows no interaction between tPA administration and clot composition. These findings suggest that tPA does not result in any histological changes in clot composition.
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Affiliation(s)
- Waleed Brinjikji
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA.
| | - Mehdi Abbasi
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Oana Madalina Mereuta
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Physiology and CURAM-SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - Seán Fitzgerald
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Physiology and CURAM-SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | | | - Daying Dai
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | | | - Raul G Nogueira
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Peter Kvamme
- Department of Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, USA
| | - Kennith F Layton
- Department of Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Josser E Delgado
- NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Ricardo A Hanel
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Vitor M Pereira
- Departments of Medical Imaging and Surgery, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Mohammed A Almekhlafi
- Departments of Clinical Neurosciences, Radiology, and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Albert J Yoo
- Department of Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Babak S Jahromi
- Departments of Radiology and Neurosurgery, Northwestern University, Chicago, IL, USA
| | - Matthew J Gounis
- Department of Radiology, New England Center for Stroke Research, University of Massachusetts, Worcester, Massachusetts, USA
| | - Biraj M Patel
- Departments of Radiology and Neurosurgery, Carilion Clinic, Roanoke, VA, USA
| | - Luis E Savastano
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Harry J Cloft
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
| | - Diogo C Haussen
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Alhamza Al-Bayati
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Mahmoud Mohammaden
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Leonardo Pisani
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Gabriel Rodrigues
- Department of Neurology, Grady Memorial Hospital and Emory University, Atlanta, Georgia, USA
| | - Ike C Thacker
- Department of Radiology, Baylor University Medical Center, Dallas, Texas, USA
| | - Yasha Kayan
- NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Alexander Z Copelan
- NeuroInterventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA
| | - Amin Aghaebrahim
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Eric Sauvageau
- Department of Neurosurgery, Baptist Medical Center, Jacksonville, Florida, USA
| | - Andrew M Demchuk
- Departments of Clinical Neurosciences, Radiology, and Community Health Sciences, Hotchkiss Brain Institute and Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Parita Bhuva
- Department of Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Jazba Soomro
- Department of Neurointervention, Texas Stroke Institute, Plano, Texas, USA
| | - Pouya Nazari
- Departments of Radiology and Neurosurgery, Northwestern University, Chicago, IL, USA
| | | | - Ajit S Puri
- Department of Radiology, New England Center for Stroke Research, University of Massachusetts, Worcester, Massachusetts, USA
| | - Karen M Doyle
- Department of Physiology and CURAM-SFI Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - John Entwistle
- Departments of Radiology and Neurosurgery, Carilion Clinic, Roanoke, VA, USA
| | - David F Kallmes
- Department of Radiology, Mayo Clinic, Rochester, MN, USA; Department of Neurosurgery, Mayo Clinic, Rochester, MN, USA
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Alsunaid S, Caputo V, Stryker K, Diouf J, Abbasi M, Borgi J, Forest S, Mansour A. COVID-19 Vaccine Triggered Rejection in Lung Transplant Recipients: A Case Series. J Heart Lung Transplant 2022. [PMCID: PMC8988696 DOI: 10.1016/j.healun.2022.01.1352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Purpose Methods Results Conclusion
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Phan D, Friedmann P, Skendelas J, Mansour A, Borgi J, Alsunaid S, Abbasi M, Forest S. The United States Experience of Lung Transplantation in Recipients with COVID-19 Fibrosis: A UNOS/OPTN Analysis. J Heart Lung Transplant 2022. [PMCID: PMC8988585 DOI: 10.1016/j.healun.2022.01.255] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Purpose Coronavirus Disease 19 (COVID-19) is a novel cause of end-stage fibrotic lung disease. Data has been limited to case series and single center reports with regards to outcomes in this unique cohort of patients. We sought to investigate the largest experience to date in patients with COVID-19 fibrosis (CVF) who underwent lung transplantation. Methods The United Network for Organ Sharing (UNOS) database was queried for all adult patients (≥18 years old) who underwent isolated lung transplantation between 2018 and July 2021. Recipients diagnosed with CVF were identified and compared to those with idiopathic pulmonary fibrosis (IPF). The IPF cohort included recipients from 2018, in the pre-COVID era. Baseline demographics, perioperative factors, and 30-day outcomes were examined. Results A total of 931 recipients were included in this study, 868 (93.2%) and 63 (6.8%) were IPF and CVF, respectively. IPF recipients were on average older (65 vs. 56 years, p<0.001), white race (83% vs. 51%, p<0.001), and less likely to be male (73% vs. 86%, p=0.04). BMI was similar between the IPF and CVF, 27.6 and 27.2 kg/m2, as was the mean PAP 24 and 21 mmHg. The CVF cohort had lower predicted FVC (32% vs. 47%, p=0.01), and had less tobacco use (36% vs 61%, p<0.001). Mean creatinine level was clinically similar, though statistically higher in the IPF cohort, (0.83 vs 0.64, p<0.001). CVF recipients were on the waitlist for a shorter median duration (10 vs 32 days, p<0.001) with a higher LAS (85 vs 41, p<0.001). Notably, more CVF recipient were be on ECMO at time of listing (29% vs 2%, p<0.001) and require ventilatory support (27% vs. 2%, p<0.001). CVF recipients were more likely to receive a double lung transplantation compared to IPF (83% vs 64%, p=0.002), with similar ischemia times, 5.5 vs 5.1 hrs (p=0.17). Mortality at 30 days was comparable between CVF and IPF (7.0% vs. 2.3%, p=0.09), though 20 patients in the CVF cohort had missing data. Conclusion Patients with end-stage lung disease secondary to CVF are higher acuity, and more likely to require ECMO and ventilatory support as a bridge to lung transplantation. Early mortality, while comparable to non-COVID related fibrotic lung disease, remains almost 3 times higher with CVF. In the era of publicly reported survival outcomes, the transplant community may need to reconsider how we approach this new and devastating diagnosis of CVF.
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Shams A, Shabani R, Asgari H, Karimi M, Najafi M, Asghari-Jafarabadi M, Razavi SM, Miri SR, Abbasi M, Mohammadi A, Koruji M. In vitro elimination of EL4 cancer cells from spermatogonia stem cells by miRNA-143- and 206-loaded folic acid conjugated PLGA nanoparticles. Nanomedicine (Lond) 2022; 17:531-545. [PMID: 35264013 DOI: 10.2217/nnm-2021-0210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: MiRNA's-143 and -206 are powerful apoptotic regulators in cancer cells. This study aimed to use miRNA-143- and 206-loaded poly(lactic-co-glycolic) acid (PLGA) nanoparticles conjugated with folic acid to induce apoptosis in the EL4 cancer cells. Materials & methods: The therapy was conducted in six groups: Treatment with both miRNAs simultaneously (mixed miRNAs), miRNA-206 treatment, miRNA-143 treatment, blank PLGA, blank polyethylenimine (PEI) and complex PEI-miRNAs. Results: In terms of viability, in mixed miRNAs, no synergistic effect was observed on EL4 cell elimination. However, in the single miRNA-206 group, a stronger apoptotic effect was observed than the mixed miRNAs group and single miRNA-143 group alone. Conclusion: MiRNAs' apoptotic induction effects in cancer cells were found to be remarkable.
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Affiliation(s)
- Azar Shams
- Stem cell & Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ronak Shabani
- Stem cell & Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Asgari
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Karimi
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Najafi
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Asghari-Jafarabadi
- Department of Statistics & Epidemiology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.,Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Mohsen Razavi
- Clinic of Hematology & Oncology, Firoozgar Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Rouhollah Miri
- Department of Surgical Oncology, Cancer Institute,Tehran University of Medical Science, Tehran, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Amirhossein Mohammadi
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Morteza Koruji
- Stem cell & Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Shahid A, Abbasi M, Madhani S, Larco JA, Liu Y, Robertson C, Chiang CC, Savastano LE. 433 Efficacy and Safety of Surgical Decompression for Migraine: A Systematic Review. Neurosurgery 2022. [DOI: 10.1227/neu.0000000000001880_433] [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: 11/19/2022] Open
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Affiliation(s)
- M. Abbasi
- Department of Computer Engineering, Engineering Faculty, Bu-Ali Sina University, Hamedan, Iran
| | - M. R. Khosravi
- Department of Computer Engineering, Persian Gulf University, Bushehr, Iran
- Telecommunications Group, Department of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz, Iran
| | - A. Ramezani
- Department of Electrical Engineering, Engineering Faculty, Bu-Ali Sina University, Hamedan, Iran
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Larco J, Abbasi M, Liu Y, Dai D, Lanzino G, Savastano L, Cloft H, Kallmes D, Kadirvel R, Brinjikji W. Postprocedural Thrombosis following Endovascular Treatment of Intracranial Aneurysm with Flow Diverters or Coiling: A Histologic Study. AJNR Am J Neuroradiol 2022; 43:258-264. [PMID: 34916206 PMCID: PMC8985686 DOI: 10.3174/ajnr.a7369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/05/2021] [Indexed: 02/03/2023]
Abstract
Endovascular treatment of aneurysms with flow diverters or coiling is sometimes complicated by intraprocedural or postprocedural thrombosis along or within the devices. Thrombus composition and structure associated with such complications may provide insights into mechanisms of thrombus formation and clinical strategies to remove the thrombus. We present a retrospective histopathologic study of 4 patients who underwent mechanical thrombectomy due to acute occlusion of either implanted flow diverter devices or along coils during the treatment of intracranial aneurysm.
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Affiliation(s)
- J.A. Larco
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - M. Abbasi
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - Y. Liu
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - D. Dai
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.)
| | - G. Lanzino
- Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - L.E. Savastano
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - H. Cloft
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.)
| | - D.F. Kallmes
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
| | - R. Kadirvel
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.)
| | - W. Brinjikji
- From the Departments of Radiology (J.A.L., M.A., Y.L.,
D.D., L.E.S., H.C., D.F.K., R.K., W.B.),Neurosurgery (J.A.L., M.A., Y.L., G.L., L.E.S., D.F.K.,
W.B.), Mayo Clinic, Rochester, Minnesota
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48
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Liu Y, Gebrezgiabhier D, Zheng Y, Shih A, Chaudhary N, Pandey A, Larco J, Madhani S, Abbasi M, Shahid A, Quinton R, Kadirvel R, Brinjikji W, Kallmes D, Savastano L. Arterial Collapse during Thrombectomy for Stroke: Clinical Evidence and Experimental Findings in Human Brains and In Vivo Models. AJNR Am J Neuroradiol 2022; 43:251-257. [PMID: 35027348 PMCID: PMC8985669 DOI: 10.3174/ajnr.a7389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 10/04/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND PURPOSE Aspiration thrombectomy has become a preferred approach to recanalize large-vessel occlusion in stroke with a growing trend toward using larger-bore catheters and stronger vacuum pumps. However, the mechanical response of the delicate cerebral arteries to aspiration force has not been evaluated. Here, we provide preclinical and clinical evidence of intracranial arterial collapse in aspiration thrombectomy. MATERIALS AND METHODS We presented a clinical case of arterial collapse with previously implanted flow diverters. We then evaluated the effect of vacuum with conventional aspiration catheters (with and without stent retrievers) in a rabbit model (n = 3) using fluoroscopy and intravascular optical coherence tomography. Then, in a validated human cadaveric brain model, we conducted 168 tests of direct aspiration thrombectomy following an experimental design modifying the catheter inner diameter (0.064 inch, 0.068 inch, and 0.070 inch), cerebral perfusion pressures (mean around 60 and 90 mm Hg), and anterior-versus-posterior circulation. Arterial wall response was recorded and graded via direct transluminal observation. RESULTS Arterial collapse was observed in both the patient and preclinical experimental models. In the human brain model, arterial collapse was observed in 98% of cases in the M2 and in all the cases with complete proximal flow arrest. A larger bore size of the aspiration catheter, a lower cerebral perfusion pressure, and the posterior circulation in comparison with the anterior circulation were associated with a higher probability of arterial collapse. CONCLUSIONS Arterial collapse does occur during aspiration thrombectomy and is more likely to happen with larger catheters, lower perfusion pressure, and smaller arteries.
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Affiliation(s)
- Y. Liu
- From the Departments of Radiology (Y.L., M.A., R.K., W.B., D.F.K.),Departments of Mechanical Engineering (Y.L., Y.Z., A.J.S.)
| | - D. Gebrezgiabhier
- Neurosurgery (D.G., A.S.P., L.E.S.),UCSF Graduate Program in Bioengineering (D.G.), University of California Berkeley, San Francisco, California
| | - Y. Zheng
- Departments of Mechanical Engineering (Y.L., Y.Z., A.J.S.),Department of Mechanical Engineering (Y.Z.), Worcester Polytechnic Institute, Worcester, Massachusetts
| | - A.J. Shih
- Departments of Mechanical Engineering (Y.L., Y.Z., A.J.S.)
| | - N. Chaudhary
- Radiology (N.C.), University of Michigan, Ann Arbor, Michigan
| | | | | | | | - M. Abbasi
- From the Departments of Radiology (Y.L., M.A., R.K., W.B., D.F.K.)
| | - A.H. Shahid
- Neurosurgery (J.L.A.L., S.I.M., A.H.S., L.E.S.)
| | - R.A. Quinton
- Division of Anatomic Pathology (R.A.Q.), Mayo Clinic, Rochester, Minnesota
| | - R. Kadirvel
- From the Departments of Radiology (Y.L., M.A., R.K., W.B., D.F.K.)
| | - W. Brinjikji
- From the Departments of Radiology (Y.L., M.A., R.K., W.B., D.F.K.)
| | - D.F. Kallmes
- From the Departments of Radiology (Y.L., M.A., R.K., W.B., D.F.K.)
| | - L.E. Savastano
- Neurosurgery (J.L.A.L., S.I.M., A.H.S., L.E.S.),Neurosurgery (D.G., A.S.P., L.E.S.)
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49
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Abbasi M, Arturo Larco J, Madhani SI, Mereuta OM, Dai D, KADIRVEL R, Savastano L, Kallmes DF, Brinjikji W. Abstract TP159: The Effect Of Diabetes Mellitus On Thrombus Composition In Patients With Stroke. Stroke 2022. [DOI: 10.1161/str.53.suppl_1.tp159] [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
Introduction:
Outcomes of mechanical thrombectomy (MT) are influenced by the composition of thrombi. Amongst the risk factors affecting clot composition, diabetes mellitus (DM) may be associated with more thrombus structural and mechanical alterations resulting in fibrinolysis-resistant thrombi. However, extensive analysis of the composition of thrombi obtained from patients is needed to elucidate this relationship.
Hypothesis:
Thrombi retrieved from patients with DM may have different compositions compared to that of patients with no history of DM.
Methods:
MT retrieved-thrombi from patients suffering from large vessel occlusion (LVO) stroke were included. Thrombi sections were stained with Martius Scarlet Blue (MSB) for main thrombus components including red blood cells (RBCs), white blood cells (WBCs), fibrin and platelet. Additionally, immunohistochemistry (IHC) was performed to identify neutrophil extracellular traps (NETs) (anti-citrulinated H3; CitH3; NETs-specific marker) and von Willebrand Factor (vWF) in thrombi. Slides were then scanned and analyzed and the thrombus composition was compared between patients with or without a DM diagnosis at the time of stroke presentation.
Results:
A total of 140 patients were included of which 35 had a diagnosis of DM at stroke presentation. Baseline characteristics (excluding age), IV-tPA use prior to MT, and MT outcomes (number of device passes and final mTICI score) were similar between DM and non DM patients. The overall average percentage of RBCs, WBCs, fibrin, platelet, NETs (CitH3), and vWF components in thrombi were 47.4%, 3.2%, 27.4%, 21.8%, 25.9% and 17.6%, respectively. Thrombi from patients with DM were not statistically significant different from those of patients with no DM in terms of RBCs (44.3 vs 48.4 p=0.37), WBCs (2.7 vs 3.3 p=0.05), fibrin (29.5 vs 26.7 p=0.37), platelet (23.3 vs 21.3 p=0.57), NETs (25.6 vs 22.3 p=0.54), and vWF (17.5 vs 17.7 p=0.96).
Conclusion:
DM has no effect on the composition of thrombi as no significant difference was found in thrombi obtained from patients with and without DM.
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Arturo Larco J, Abbasi M, Madhani SI, Dai D, KADIRVEL R, Savastano L, Kallmes DF, Brinjikji W. Abstract WP156: Association Of Thrombus Histopathology And Prognosis Of Successful Recanalization. Stroke 2022. [DOI: 10.1161/str.53.suppl_1.wp156] [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
Introduction:
Mechanical thrombectomy (MT) has become the standard of care for acute ischemic stroke (AIS) patients due to large vessel occlusion (LVO). Clinical outcome of successful recanalization (mTICI 2b or higher) varies greatly and is associated with some baseline characteristics. Many studies have reported the relation of thrombus composition with MT outcomes however the association of thrombus composition with the prognosis of successful recanalization remains to be elucidated.
Hypothesis:
thrombi retrieved from patients with good clinical outcome may have different compositions compared to that of patients with poor clinical outcome.
Methods:
Thrombi retrieved from AIS-LVO patients with successful recanalization were included. Patients were divided according to modified Rankin Scale at 90 days (mRS-90days) into good clinical outcome (mRS-90days 0-2) and poor clinical outcome (mRS-90 days 3-6). Representative slide for each thrombus was stained with Martius Scarlet Blue (MSB) for red blood cells (RBCs), white blood cells (WBCs), fibrin (FIB), and platelet (PLT). Immunohistochemistry (IHC) was also performed for NETs (anti-citrullinated H3; CitH3) and vWF in thrombi. The overall mean value of each thrombus composition was calculated. Thrombus was considered rich in given composition if that composition was higher than its overall mean. We compared the thrombus composition and type between patients with good and poor clinical outcomes.
Results:
A total of 94 patients were included. Fifty-six patients had good clinical outcome. The overall average percentage of RBCs, WBCs, fibrin, platelet, NETs (CitH3), and vWF components in thrombi were 44.3%, 3.6%, 29.3%, 22.8%, 20.3% and 12.5% respectively. There was no association between thrombus type (including RBC-rich, FIB-rich, PLT-rich, vWF-rich, and NETs-rich) and clinical outcomes (P values>0.05). Multivariate logistic regression analysis showed no association between thrombus composition and clinical outcome (good vs poor) while adjusting for age, initial NIHSS score, ASPECT score, pre-MT IV-tPA, and MT technique and number of the device passes.
Conclusion:
we found no association between thrombus composition and clinical outcome after successful recanalization.
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