54 results on '"Radmehr R"'
Search Results
2. Selecting Strategic Policy for Irrigation Water Management (Case Study: Qazvin Plain, Iran).
- Author
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Radmehr, R., Ghorbani, M., and Kulshreshtha, S.
- Subjects
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WATER management , *WATER supply management , *IRRIGATION water , *WATER levels , *MAXIMUM entropy method - Abstract
Water is considered as the most important component, but a limiting input, for agricultural production in Iran. In the context of water resources management, due to the limited availability of water and high cost of supplying it to the users, improvement of water use productivity has been regarded as one of the most appropriate approaches to manage water demand. Various tools have been applied for water management policy in the context of preventing high levels of water deficit. In the present study, different policy scenarios related to water supply management are assessed. These include estimation of the impacts of each policy scenario on physical and economic productivity indices and employment, using positive mathematical programming methods and maximum entropy. This methodology was applied to water use in the Qazvin Plain, Iran. Results suggested that application of these policy scenarios not only decreased water consumption but also generated desirable social and economic effects. Results of the ranking showed that the policy of imposing tax on input generated the best results for the study area. However, it is admitted that selection of the best policy scenario is dependent on the weight that policy makers would select for various indicators. [ABSTRACT FROM AUTHOR]
- Published
- 2020
3. Delayed administration of elezanumab, a human anti-RGMa neutralizing monoclonal antibody, promotes recovery following cervical spinal cord injury
- Author
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Andrea J. Mothe, Peer B. Jacobson, Mitchell Caprelli, Antigona Ulndreaj, Radmehr Rahemipour, Lili Huang, Philippe P. Monnier, Michael G. Fehlings, and Charles H. Tator
- Subjects
RGMa ,Monoclonal antibody ,Elezanumab ,Cervical spinal cord injury ,Axonal sprouting ,Regeneration ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Spinal cord injury (SCI) elicits a cascade of degenerative events including cell death, axonal degeneration, and the upregulation of inhibitory molecules which limit repair. Repulsive guidance molecule A (RGMa) is an axon growth inhibitor which is also involved in neuronal cell death and differentiation. SCI causes upregulation of RGMa in the injured rodent, non-human primate, and human spinal cord. Recently, we showed that delayed administration of elezanumab, a high affinity human RGMa-specific monoclonal antibody, promoted neuroprotective and regenerative effects following thoracic SCI. Since most human traumatic SCI is at the cervical level, and level-dependent anatomical and molecular differences may influence pathophysiological responses to injury and treatment, we examined the efficacy of elezanumab and its therapeutic time window of administration in a clinically relevant rat model of cervical impact-compression SCI. Pharmacokinetic analysis of plasma and spinal cord tissue lysate showed comparable levels of RGMa antibodies with delayed administration following cervical SCI. At 12w after SCI, elezanumab promoted long term benefits including perilesional sparing of motoneurons and increased neuroplasticity of key descending pathways involved in locomotion and fine motor function. Elezanumab also promoted growth of corticospinal axons into spinal cord gray matter and enhanced serotonergic innervation of the ventral horn to form synaptic connections caudal to the cervical lesion. Significant recovery in grip and trunk/core strength, locomotion and gait, and spontaneous voiding ability was found in rats treated with elezanumab either immediately post-injury or at 3 h post-SCI, and improvements in specific gait parameters were found when elezanumab was delayed to 24 h post-injury. We also developed a new locomotor score, the Cervical Locomotor Score, a simple and sensitive measure of trunk/core and limb strength and stability during dynamic locomotion.
- Published
- 2022
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4. A report of a Bombay phenotype case (Oh) during establishment of haemovigilance system in Bandar Abbas.
- Author
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Jalali Farahani, F., Charsizadeh, E., Mozaffari Khorgoo, Z., Moghaddam, M., Radmehr, R., Faranoush, M., Balali, M. R., Moradi Shamami, N., Ramezani, H., Shahebrahimi, E., and Naderi Beni, M.
- Subjects
BLOOD transfusion ,AGGLUTINATION ,ABO blood group system ,IMMUNOGLOBULINS - Abstract
Background and Objectives For people with Bombay phenotype due to the expression of strong IgM Anti H in their sera, transfusion with ABO group O blood will cause acute hemolytic reactions. Therefore, it is important to detect them. Case Following O blood type transfusion to a blood group O Rh positive patient with multiple trauma, acute hemolytic transfusion reaction happened. The reaction was recognized by the trained nurse in the haemovigilance system. In serologic studies, a high level of anti-H, anti-A, and anti-B was detected in the patient blood. Conclusions This case increased the number of Bombay phenotypes in Iran to 16. Therefore, using antibody screening test and existence of trained nurses and physicians with haemovigilance system in order exact management of transfusion reactions should be considered necessary. [ABSTRACT FROM AUTHOR]
- Published
- 2014
5. Drug resistance study of Mycobacterium tuberculosis strains and mycobacteria other than tubercle bacilli strains to ofloxacin and ciprofloxacin isolated from patients admitted to research center for TB and pulmonary diseases of Tabriz
- Author
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Rafi, A., seyyedreza moaddab, and Radmehr, R.
6. In-hospital recurrent stroke in ipsilateral carotid web patients undergoing thrombectomy.
- Author
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Khan F, Kala N, Chang K, Shu L, Goldstein ED, Torabi R, Moldovan K, Jayaraman M, Mohammadzadeh N, Furie K, and Yaghi S
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- Humans, Male, Middle Aged, Female, Aged, Aged, 80 and over, Stroke etiology, Retrospective Studies, Carotid Artery Diseases complications, Carotid Artery Diseases surgery, Recurrence, Thrombectomy methods, Ischemic Stroke surgery
- Abstract
Objective: Carotid artery web is a possible cause of ischemic stroke, especially in young patients who lack conventional risk factors. The immediate and long-term outcomes are not well studied. We aimed to determine the association between an ipsilateral carotid web and in-hospital stroke recurrence., Methods: We analyzed data from adult patients admitted with an acute anterior circulation large vessel occlusion at a Comprehensive Stroke Center between July 2015 and March 2023. The primary outcome was in-hospital stroke recurrence and secondary outcome was in-hospital recurrent LVO. Multivariable logistic regression was performed to examine the association between ipsilateral carotid web and recurrent ischemic stroke and recurrent LVO., Results: Of the 1463 patients with anterior circulation large vessel occlusion, 27 (1.8%) had an ipsilateral carotid artery web. Patients with carotid web were younger (median age (IQR), 60 years (53-67 years) versus 74 years (62-84 years), P < 0.01) and less likely to be Caucasian (60% vs. 80%, p = 0.014). Of the 27 patients with carotid web, 18 (70%) had no identifiable competing stroke mechanism. When compared to patients without ipsilateral carotid web, those with an ipsilateral carotid web had a higher risk of recurrent ischemic stroke (adjusted RR: 4.38, 95% CI: 1.38-13.85) and recurrent ipsilateral large vessel occlusion (adjusted RR: 4.49, 95% CI: 1.41-14.21)., Interpretation: Carotid webs are an under recognized cause of acute large vessel occlusion and are associated with higher risk of early recurrence. Studies are needed to validate our findings and test early revascularization strategies in patients with symptomatic carotid artery webs., (© 2024 The Author(s). Annals of Clinical and Translational Neurology published by Wiley Periodicals LLC on behalf of American Neurological Association.)
- Published
- 2024
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7. Transcarotid arterial revascularization for symptomatic carotid web.
- Author
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Ayala C, Barhouse P, Torabi R, Feler J, Doberstein C, and Moldovan K
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- Humans, Male, Female, Middle Aged, Treatment Outcome, Aged, Adult, Time Factors, Endovascular Procedures adverse effects, Endovascular Procedures instrumentation, Retrospective Studies, Carotid Artery Diseases surgery, Carotid Artery Diseases diagnostic imaging, Carotid Artery Diseases complications, Carotid Artery Diseases therapy, Recurrence, Brain Ischemia etiology, Brain Ischemia diagnostic imaging, Brain Ischemia diagnosis, Brain Ischemia physiopathology, Ischemic Stroke etiology, Ischemic Stroke diagnosis, Ischemic Stroke physiopathology, Stents
- Abstract
Objectives: Symptomatic carotid web is an increasingly recognized cause of acute ischemic stroke with a high risk of recurrent ischemic events despite aggressive medical interventions. Surgical interventions including transfemoral carotid artery stenting (TFCAS) and carotid endarterectomy have been described to reduce this risk, but transcarotid arterial revascularization (TCAR) has not been evaluated for this purpose., Materials and Methods: Patients with cerebral ischemia from carotid web underwent TCAR with flow reversal. Patients were monitored for periprocedural complications and assessed at follow-up for clinical evidence of recurrent ischemia., Results: Six cases over the course of 21 months were identified, 2 males and 4 females with a median age of 59.5 (interquartile range of 39). All underwent technically successful TCAR without periprocedural complications no post-procedural cerebral ischemia over a median follow-up time of 21 months., Conclusions: In this small series of patients, TCAR provided a safe and effective treatment of carotid webs that had previously caused cerebral ischemia., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Radmehr Torabi reports a relationship with Silk Road Medical that includes: consulting or advisory. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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8. Association of IRS1 gene Pro512Ala polymorphism with nonalcoholic fatty liver disease.
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Asadi A, Rostami M, Shafiee R, Ardalani A, Dehghanitafti A, Golshadi Z, Kohansal K, Ghasemi F, Najafi M, Mahmoudi T, Rezamand G, Dabiri R, Nobakht H, Farahani H, and Tabaeian SP
- Subjects
- Humans, Female, Male, Middle Aged, Adult, Case-Control Studies, Gene Frequency genetics, Alleles, Insulin Receptor Substrate Proteins genetics, Non-alcoholic Fatty Liver Disease genetics, Genetic Predisposition to Disease genetics, Polymorphism, Single Nucleotide genetics, Genotype
- Abstract
Objective: This study was designed to investigate the possible effect of the insulin receptor substrate 1 (IRS1) gene rs1801276 polymorphism on the risk of nonalcoholic fatty liver disease (NAFLD)., Subjects and Methods: The rs1801276 polymorphism was investigated in 127 controls and 123 biopsy-proven NAFLD patients using PCR-RFLP., Results: No deviation from Hardy-Weinberg equilibrium was discovered for the rs1801276 variant of IRS1 in either NAFLD patients or controls ( P >0.05). The distribution of different rs1801276 genotypes and alleles showed significant variations between controls and NAFLD patients. In comparison to rs1801276 'CC' genotype, the "GG+GC" genotype occurred less frequently in NAFLD patients than in controls, which also persisted after adjustment for confounding factors ( P = 0.041, OR = 0.60, 95% CI = 0.45-0.93). In comparison with the IRS1 rs1801276 "C" allele, the "G" allele was significantly less prevalent in NAFLD patients than in controls ( P = 0.045, OR = 0.69, 95% CI = 0.58-0.91)., Conclusions: For the first time, we reported a significant association between the IRS1 rs1801276 polymorphism and biopsy-proven NAFLD. More studies are required to further elucidate the contribution of the IRS1 gene to NAFLD susceptibility., Competing Interests: Disclosure: no potential conflict of interest relevant to this article was reported.
- Published
- 2024
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9. Population analysis of ischemic stroke burden and risk factors in the United States in the pre- and post-mechanical thrombectomy eras.
- Author
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Ganga A, Jayaraman MV, E Santos Fontánez S, Moldovan K, Torabi R, and Wolman DN
- Subjects
- Humans, Risk Factors, United States epidemiology, Male, Female, Aged, Middle Aged, Incidence, Time Factors, Prevalence, Risk Assessment, Treatment Outcome, Aged, 80 and over, Adult, Disability Evaluation, Disability-Adjusted Life Years, Young Adult, Ischemic Stroke mortality, Ischemic Stroke diagnosis, Ischemic Stroke epidemiology, Ischemic Stroke therapy, Thrombectomy adverse effects, Thrombectomy mortality, Databases, Factual
- Abstract
Objectives: To provide an updated analysis of the burden of ischemic stroke in the United States., Materials and Methods: Using the Global Burden of Disease database, we estimated age-standardized, population-adjusted rates of incidence, prevalence, mortality, and disability-adjusted life years from 2010 to 2019, with regional comparisons. Deaths and disability-adjusted life years were compared in 2010-2014 and 2015-2019 to assess the potential effect of increased mechanical thrombectomy use. The attributable, disability-adjusted life years for twenty risk factors were estimated, ranked, and trended., Results: Incident ischemic strokes decreased by 11.4 % across the study period from 65.7 (55.9-77.3) to 58.2 (49.0-69.5) per 100,000. Prevalence (-8.2 %), mortality (-1.9 %), and disability-adjusted life years (-4.4 %) all declined. All regions showed reductions in all burden measures, with the South consistently having the highest burden yet the largest reduction in incidence (-12.6 %) and prevalence (-10.5 %). Deaths (p < 0.0001) and DALYs (p < 0.0001) significantly differed between the pre- and post-mechanical thrombectomy eras. Total attributable disability-adjusted life years for all risk factors decreased from 304.7 (258.5-353.2) in 2010 to 288.9 (242.2-337.2) in 2019. In 2019, the risk factors with the most disability-adjusted life years were hypertension, hyperglycemia, and obesity with no state-based differences. Across the study period, disability-adjusted life years attributable to leading risk factors decreased among men but decreased less or increased among women., Conclusions: The burden of ischemic stroke decreased during the study period. Declines in deaths and disability-adjusted life years suggest a mitigating impact of mechanical thrombectomy. While disability-adjusted life years attributable to leading risk factors decreased, sex-based disparities were observed., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: DNW reports consultancy for Cerenovus Stroke Solutions, (Copyright © 2024 Elsevier Inc. All rights reserved.)
- Published
- 2024
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10. The rs1862513 promoter variant of resistin gene influences susceptibility to nonalcoholic fatty liver disease.
- Author
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Nouri S, Navari M, Shafiee R, Mahmoudi T, Rezamand G, Asadi A, Nobakht H, Dabiri R, Farahani H, and Tabaeian SP
- Subjects
- Humans, Female, Male, Case-Control Studies, Middle Aged, Adult, Polymorphism, Single Nucleotide genetics, Gene Frequency genetics, Polymerase Chain Reaction, Risk Factors, Polymorphism, Restriction Fragment Length, Non-alcoholic Fatty Liver Disease genetics, Resistin genetics, Genetic Predisposition to Disease genetics, Genotype, Promoter Regions, Genetic genetics
- Abstract
Objectives: Nonalcoholic fatty liver disease is the term used for a range of conditions in which fat builds up in the liver and exceeds 5% of hepatocytes without inordinate alcohol intake or other causes of lipid accumulation. Regarding the fact that insulin resistance and obesity play key roles in the pathogenesis of nonalcoholic fatty liver disease, as well as the connection between resistin and these metabolic diseases, the association between nonalcoholic fatty liver disease and a resistin gene (RETN) polymorphism was examined., Methods: In this genetic case-control association study, 150 biopsy-proven nonalcoholic fatty liver disease patients and 154 controls were enrolled and genotyped for the RETN rs1862513 (-420C>G) gene polymorphism using PCR-RFLP method., Results: The -420C>G genotype frequency distributions in both groups were consistent with Hardy-Weinberg equilibrium (HWE; p>0.05). The carriers of the RETN -420C>G "CC" genotype compared with the "GG" genotype occurred less frequently in the cases with nonalcoholic fatty liver disease than in the controls, and the difference remained significant even after adjustment for confounding factors (p=0.030; OR=0.47, 95%CI=0.36-0.93). Interestingly, the RETN -420C>G "C" allele was also associated with a decreased risk for nonalcoholic fatty liver disease too (p=0.042; OR=0.72, 95%CI=0.53-0.95)., Conclusion: We found for the first time an association between biopsy-proven nonalcoholic fatty liver disease and RETN -420C>G promoter polymorphism. The carriers of the RETN -420C>G "CC" genotype had a 53% decreased risk for nonalcoholic fatty liver disease. Our findings, however, need to be corroborated by further studies.
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- 2024
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11. Spatio-temporal investigation of economic growth and environmental quality nexus in EU countries: New guidelines regarding green goods and eco-tax.
- Author
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Ali EB, Radmehr R, Ofori EK, Shayanmehr S, and Agbozo E
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- Humans, Conservation of Natural Resources, Sustainable Development, Spatio-Temporal Analysis, Taxes, European Union, Economic Development
- Abstract
The issue of environmental degradation has become pertinent and the call for carbon neutrality has intensified in recent years. Achieving this target will require countries to meet the conditions of the sustainable development goals. To do this, the study applied spatiotemporal modelling and the generalized method of moments (GMM) to examine the nexus between economic growth (EG) and the load capacity factor (LCF) through environmental goods (ENG) and environmental tax (ENT) among European Union (EU) nations from 1995 to 2018. The findings demonstrate that spatial dependence leads to a change in EG and LCF that impacts the EG and LCF of the neighbouring countries. The study also found that there is a significant positive and bidirectional relationship between economic growth and load capacity factor. Moreover, the study revealed that a positive effect of ENG, ENT, REN and Human Capital Index (HCI) on EG, with a reducing effect from natural resource rents (NRR). Finally, HCI improves environmental quality, while ENG, ENT, REN and NRR degrade the environment. Our findings justify the need for EU countries and other developed nations to implement policies that will help achieve a green economic transformation., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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12. Determining Cognitive Workload Using Physiological Measurements: Pupillometry and Heart-Rate Variability.
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Ma X, Monfared R, Grant R, and Goh YM
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- Humans, Heart Rate physiology, Technology, Cognition, Task Performance and Analysis, Workload psychology, Industry
- Abstract
The adoption of Industry 4.0 technologies in manufacturing systems has accelerated in recent years, with a shift towards understanding operators' well-being and resilience within the context of creating a human-centric manufacturing environment. In addition to measuring physical workload, monitoring operators' cognitive workload is becoming a key element in maintaining a healthy and high-performing working environment in future digitalized manufacturing systems. The current approaches to the measurement of cognitive workload may be inadequate when human operators are faced with a series of new digitalized technologies, where their impact on operators' mental workload and performance needs to be better understood. Therefore, a new method for measuring and determining the cognitive workload is required. Here, we propose a new method for determining cognitive-workload indices in a human-centric environment. The approach provides a method to define and verify the relationships between the factors of task complexity, cognitive workload, operators' level of expertise, and indirectly, the operator performance level in a highly digitalized manufacturing environment. Our strategy is tested in a series of experiments where operators perform assembly tasks on a Wankel Engine block. The physiological signals from heart-rate variability and pupillometry bio-markers of 17 operators were captured and analysed using eye-tracking and electrocardiogram sensors. The experimental results demonstrate statistically significant differences in both cardiac and pupillometry-based cognitive load indices across the four task complexity levels (rest, low, medium, and high). Notably, these developed indices also provide better indications of cognitive load responding to changes in complexity compared to other measures. Additionally, while experts appear to exhibit lower cognitive loads across all complexity levels, further analysis is required to confirm statistically significant differences. In conclusion, the results from both measurement sensors are found to be compatible and in support of the proposed new approach. Our strategy should be useful for designing and optimizing workplace environments based on the cognitive load experienced by operators., Competing Interests: The authors declare no conflicts of interest.
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- 2024
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13. Insulin receptor substrate 2 gene Gly1057Asp polymorphism is a risk factor for nonalcoholic fatty liver disease.
- Author
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Nouri S, Mahmoudi T, Hojjati F, Najafabadi ZN, Shafiee R, Sayedsalehi S, Dehghanitafti A, Ardalani A, Kohansal K, Rezamand G, Asadi A, Nobakht H, Dabiri R, Farahani H, Tabaeian SP, and Zali MR
- Subjects
- Humans, Case-Control Studies, Genetic Predisposition to Disease, Genotype, Insulin Receptor Substrate Proteins genetics, Insulin Receptor Substrate Proteins metabolism, Polymorphism, Genetic, Polymorphism, Single Nucleotide genetics, Risk Factors, Non-alcoholic Fatty Liver Disease genetics
- Abstract
Objective: Nonalcoholic fatty liver disease (NAFLD), which is an emerging global chronic liver disease, has a close association with insulin resistance. We aimed to determine whether the Gly1057Asp (rs1805097) polymorphism of the insulin receptor substrate 2 (IRS2) gene is associated with NAFLD., Methods: Using the polymerase chain reaction-restriction fragment length polymorphism method, 135 patients with biopsy-proven NAFLD and 135 controls underwent IRS2 genotype analysis., Results: Genotype and allele distributions of the IRS2 gene Gly1057Asp variant conformed to the Hardy-Weinberg equilibrium in both the case and control groups (P > .05). The Asp/Asp genotype of IRS2 gene Gly1057Asp polymorphism compared with Gly/Gly genotype was associated with a 2.1-fold increased risk for NAFLD after adjustment for confounding factors (P = .029; odds ratio = 2.10, 95% CI = 1.23-3.97)., Conclusion: Our findings revealed for the first time that the Gly1057Asp Asp/Asp genotype of the IRS2 gene is a marker of increased NAFLD susceptibility; however, studies in other populations are required to confirm the results., (© The Author(s) 2023. Published by Oxford University Press on behalf of American Society for Clinical Pathology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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14. Efficacy of adjunctive topical liposomal clarithromycin on systemic Glucantime in Old World cutaneous leishmaniasis: a pilot clinical study.
- Author
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Hakamifard A, Radmehr R, Sokhanvari F, Sherkat F, Hariri A, Varshosaz J, Shahmoradi Z, Feizi A, Abtahi-Naeini B, and Pourmahdi-Boroujeni M
- Abstract
Aim: This study aimed to investigate the effects of topical liposomal clarithromycin in combination with meglumine antimoniate (Glucantime
® ) on cutaneous leishmaniasis (CL) lesions. Methods: This pilot, randomized, double-blinded clinical trial was conducted on patients with CL lesions. Patients were randomly assigned to two groups: the first group received liposomal clarithromycin in combination with Glucantime for 28 days, while the second group received Glucantime and a placebo. Afterward, patients were followed up at 1.5, 3, and 6 months after treatment initiation and were evaluated for recovery time, induration, and size of the lesions. Results: Sixty patients with CL lesions were divided into two separate groups with 30 members each and were examined. Within-group analysis revealed that recovery time in the clarithromycin group was 26.65 ± 5.12 days, while in the placebo group, it was 32.84 ± 24.43, which was statistically insignificant ( p = 0.18). Lesion size comparison in the first and last follow-ups reduced in both groups: 7.73 ± 4.31 to 0.48 ± 0.50 in the clarithromycin group ( p = 0.006) and 5.47 ± 5.83 to 0.76 ± 0.88 in the placebo group ( p = 0.03). Moreover, the size of lesions in the intervention group was significantly reduced compared to that in the placebo group ( p = 0.02). Recognizable induration reduction was observed in the clarithromycin group (2.60 ± 0.77 to 1.0 ± 0.00). No adverse effects attributable to clarithromycin were reported. Conclusion: The administration of liposomal clarithromycin in combination with systemic Glucantime had a significant beneficial effect on reducing lesion size in leishmaniasis. Further studies on larger populations are recommended. Systematic Review Registration : https://www.irct.ir/trial/46611., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Hakamifard, Radmehr, Sokhanvari, Sherkat, Hariri, Varshosaz, Shahmoradi, Feizi, Abtahi-Naeini and Pourmahdi-Boroujeni.)- Published
- 2023
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15. Pharmacotechnical aspects of a stable probiotic formulation toward multidrug-resistance antibacterial activity: design and quality control.
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Karimi F, Azadi A, Omidifar N, Najafabady NM, Mohammadi F, Kazemi R, and Gholami A
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- Anti-Bacterial Agents pharmacology, Lactobacillus, Quality Control, Pharmaceutical Preparations, Methicillin-Resistant Staphylococcus aureus, Probiotics
- Abstract
As a well-known group of the probiotic family, the Lactobacillus has increasingly contributed to hindering the growth of pathogens, particularly resistant species, in the last decades. Since antibiotic resistance has become a severe problem in global healthcare systems and considerably increased the mortality and morbidity rate in infectious diseases, we aimed to obtain a new stable formulation of Lactobacillus to overcome resistant infections. For this purpose, we designed various gel formulations containing Lactobacillus rhamnosus (L. rhamnosus) as an active pharmaceutical ingredient (API) in a water base and oil base gel, evaluated the probiotic stability in formulation to obtain an optimum formulation, and finally, investigated the antibacterial activities of that against two common hospital-associated multidrug-resistant pathogens, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE). Furthermore, the pharmaceutical aspects of the optimum formulation, including stability, homogeneity, spreadability, pH value, conductivity, and rheological behavior, were assessed.The results indicated that the optimum formulation based on glycerol exhibited desirable pharmaceutical properties, including long-term stability, a perfect level of homogeneity, an acceptable range of spreadability with pseudo-plastic thixotropic behavior, and a promising antibacterial potential against MRSA and VRE. Our findings indicate that this novel probiotic formulation could be an excellent candidate to cope with antibiotic-resistant species, representing a hopeful treatment potential for topical applications, particularly in incurable infections. However, further in vivo studies seem warranted to evaluate their bactericidal activity against multi-drug resistant microorganisms., (© 2023. The Author(s).)
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- 2023
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16. Dual antiplatelet use in the management of COVID-19 associated acute ischemic stroke reocclusion.
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Feler J, Chuck C, Anderson M, Poggi J, Sweeney J, Moldovan K, Jayaraman MV, McTaggart R, and Torabi R
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- Humans, Middle Aged, Ticagrelor therapeutic use, Retrospective Studies, SARS-CoV-2, Thrombectomy methods, Aspirin therapeutic use, Treatment Outcome, Ischemic Stroke diagnostic imaging, Ischemic Stroke drug therapy, Ischemic Stroke etiology, COVID-19 complications, Stroke diagnostic imaging, Stroke drug therapy, Stroke etiology, Brain Ischemia diagnostic imaging, Brain Ischemia drug therapy, Brain Ischemia etiology
- Abstract
Intro: SARS-CoV-2 (COVID-19) infection is associated with acute ischemic stroke (AIS), which may be due to a prothrombotic state. Early reports have suggested high rates of reocclusion following mechanical thrombectomy (MT) with poor radiographic and clinical outcomes. We report our early experience using intra-procedural antithrombotics to address SARS-CoV-2 reocclusion., Methods: We identified 6 patients that experienced early reocclusion after MT for COVID-19-associated AIS through retrospective chart review abstracting their basic demographics, COVID-19 status, and stroke management. All these patients were treated after reocclusion with aspirin and cangrelor intra-procedurally, the latter of which was converted to ticagrelor post-procedurally. Some patients additionally received argatroban infusion intraprocedurally., Results: Mean age was 54. There were 3 post-procedural and 3 intra-procedural re-occlusions. After repeat thrombectomy and treatment with aspirin and cangrelor, those with post-procedure reocclusion did not show further reocclusion, while those with intra-procedural reocclusion showed radiographic improvement with intraprocedural cangrelor administration. Outcomes for these patients were poor, with a median mRS of 4. Two patients developed petechial hemorrhage of their stroke which was managed conservatively, and one developed a retroperitoneal hemorrhage from femoral access requiring transfusion. There were no patients who developed new parenchymal hematomas., Conclusion: COVID-19 AIS may be associated with a hypercoagulable state which risks malignant reocclusion complicating MT. We found antithrombotic treatment periprocedural cangrelor with or without argatroban transitioned to oral aspirin with ticagrelor to be a viable method for management of these patients., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2023
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17. Long-term effect of field triage on times to endovascular treatment for emergent large vessel occlusion.
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Jayaraman MV, Baird G, Oueidat K, Paolucci G, Haas RA, Torabi R, Moldovan K, Rhodes J, Potvin J, Alexander-Scott N, Yaghi S, Madsen T, Furie K, and McTaggart RA
- Subjects
- Humans, Triage, Thrombectomy, Time Factors, Endovascular Procedures, Stroke diagnosis, Stroke surgery
- Abstract
Background: Delays to endovascular therapy (EVT) for stroke may be mitigated with direct field triage to EVT centers. We sought to compare times to treatment over a 5.5 year span between two adjacent states, one with field triage and one without, served by a single comprehensive stroke center (CSC)., Methods: During the study period, one of the two states implemented severity-based triage for suspected emergent large vessel occlusion, while in the other state, patients were transported to the closest hospital regardless of severity. We compared times to treatment and clinical outcomes between these two states. We also performed a matched pairs analysis, matching on date treated and distance from field to CSC., Results: 639 patients met the inclusion criteria, 407 in State 1 (with field triage) and 232 in State 2 (without field triage). In State 1, scene to EVT decreased 6% (or 8.13 min, p=0.0004) every year but no decrease was observed for State 2 (<1%, p=0.94). Cumulatively over 5.5 years, there was a reduction of 43 min in time to EVT in State 1, but no change in State 2. Lower rates of disability were seen in State 1, both for the entire cohort (all OR 1.22, 95% CI 1.07 to 1.40, p=0.0032) and for those independent at baseline (1.36, 95% CI 1.15 to 1.59, p=0.0003)., Conclusions: Comparing adjacent states over time, the implementation of severity-based field triage significantly reduced time to EVT., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
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18. Excluded and myopic: Social exclusion increases temporal discounting.
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Bahrami R and Borhani K
- Subjects
- Cognition, Social Isolation, Reward, Delay Discounting, Time Perception
- Abstract
Social exclusion is a painful yet ubiquitous experience that modulates affect, behavior, and cognition. Decision-making is an essential cognitive ability that some forms of it are altered following social exclusion. However, how intertemporal decision-making is influenced by social exclusion is scarcely studied. Here, using Future Life Alone paradigm we demonstrated that experiencing social exclusion increases temporal discounting. We further tested whether the increased temporal discounting is mediated by either time perception or risk-taking. Our results revealed that although time perception is influenced by social exclusion, neither time perception nor risk-taking mediated the changes in temporal discounting. Our results are providing further evidence corroborating that social exclusion evokes cognitive deconstruction and therefore alters temporal discounting., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Bahrami, Borhani. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
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19. Minimizing blood loss with direct percutaneous polymethylmethacrylate embolization before corpectomy for vascular spinal tumors.
- Author
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Torabi R, Carnevale JA, Abdulrazeq H, Anderson M, Jayaraman M, Oyelese A, Gokaslan Z, and Moldovan K
- Abstract
Background: Standard surgical treatment for vascular spinal tumors, including renal cell carcinomas and hemangiomas, may result in significant blood loss despite preoperative arterial tumor embolization., Methods: This is a retrospective review of 12 patients who underwent direct percutaneous polymethylmethacrylate embolization (DPPE) with or without feeding artery embolization before partial or complete corpectomy for the resection of vascular spinal tumors (2013-2018). Estimated blood loss (EBL) was compared to the blood loss reported in the literature and to patients receiving standard arterial embolization before surgery., Results: The mean EBL for 12 patients was 1030 mL; three of 12 patients required blood transfusions. For the single level corpectomies, the EBL ranged from 100 mL to 3900 mL (mean 640 mL). This mean blood loss was not increased in patients receiving only DPPE preoperatively versus those patients receiving preoperative arterial embolization in addition to DPPE (1005 vs. 1416 mL); in fact, the EBL was significantly reduced for those undergoing DPPE alone., Conclusion: In this initial study, nine patients treated with DPPE embolization alone before spinal tumor resection demonstrated reduction of intraoperative blood loss compared to three patients having arterial embolization with DDPE., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 Surgical Neurology International.)
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- 2023
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20. Clinical and immunological characteristics of 69 leukocyte adhesion deficiency-I patients.
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Fazlollahi MR, Hamidieh AA, Moradi L, Shokouhi Shoormati R, Sabetkish N, Esmaeili B, Badalzadeh M, Alizadeh Z, Shamlou S, Movahedi M, Mahloujirad M, Razaghian A, Arshi S, Gharagozlou M, Kalantari A, Bemanian MH, Safari M, Heidarzadeh Arani M, Nabavi M, Parvaneh N, Sadeghi-Shabestari M, Behfar M, Behniafard N, Sherkat R, Ahmadian Heris J, Shariat M, Radmehr R, Houshmand M, Kazemnejad A, Molitor A, Carapito R, Bahram S, Pourpak Z, and Moin M
- Subjects
- Male, Pregnancy, Female, Humans, Delayed Diagnosis, Iran, Leukocytes metabolism, CD18 Antigens genetics, Leukocyte-Adhesion Deficiency Syndrome diagnosis, Leukocyte-Adhesion Deficiency Syndrome genetics
- Abstract
Background: In order to support the comprehensive classification of Leukocyte Adhesion Deficiency-I (LAD-I) severity by simultaneous screening of CD11a/CD18, this study assessed clinical, laboratory, and genetic findings along with outcomes of 69 LAD-I patients during the last 15 years., Methods: Sixty-nine patients (40 females and 29 males) with a clinical phenotype suspected of LAD-I were referred to Immunology, Asthma, and Allergy research institute, Tehran, Iran between 2007 and 2022 for further advanced immunological screening and genetic evaluations as well as treatment, were enrolled in this study., Results: The diagnosis median age of the patients was 6 months. Delayed umbilical cord separation was found in 25 patients (36.2%). The median diagnostic delay time was 4 months (min-max: 0-82 months). Forty-six patients (66.7%) were categorized as severe (CD18 and/or CD11a: below 2%); while 23 children (33.3%) were in moderate category (CD18 and/or CD11a: 2%-30%). During the follow-ups, 55.1% of children were alive with a mortality rate of 44.9%. Skin ulcers (75.4%), omphalitis (65.2%), and gingivitis (37.7%) were the most frequent complaints. Genetic analysis of the patients revealed 14 previously reported and three novel pathogenic mutations in the ITGB2 gene. The overall survival of patients with and without hematopoietic stem cell transplantation was 79.3% and 55.6%, respectively., Conclusion: Physicians' awareness of LAD-I considering delayed separation of umbilical cord marked neutrophilic leukocytosis, and variability in CD11 and CD18 expression levels, and genetic analysis leads to early diagnosis and defining disease severity. Moreover, the prenatal diagnosis would benefit families with a history of LAD-I., (© 2023 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd.)
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- 2023
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21. Letter: A Stroke Admissions Navigator Improves Adherence to Joint Commission Specifications for Hunt-Hess and Intracerebral Hemorrhage Scores.
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Ali R, Tang OY, Moldovan K, Torabi R, Furie K, Roye GD, Gokaslan ZL, Telfeian A, Yaghi S, Doberstein CE, and Jayaraman MV
- Subjects
- Humans, Cerebral Hemorrhage therapy, Retrospective Studies, Stroke therapy, Subarachnoid Hemorrhage
- Published
- 2023
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22. Initial experience with transcarotid arterial revascularization with flow reversal in the management of symptomatic carotid stenosis.
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Feler J, Torabi R, Moldovan K, Poggi J, Shaaya E, Anderson M, Ayala C, Bajaj A, Monje S, and Doberstein C
- Subjects
- Humans, Male, Aged, Female, Retrospective Studies, Treatment Outcome, Time Factors, Stents adverse effects, Risk Factors, Carotid Stenosis diagnostic imaging, Carotid Stenosis surgery, Carotid Stenosis complications, Endovascular Procedures, Stroke etiology, Stroke complications, Endarterectomy, Carotid adverse effects
- Abstract
Objective: The aim of this study was to evaluate the efficacy of transcarotid arterial revascularization (TCAR) as a viable intervention in the treatment of symptomatic carotid artery stenosis., Methods: The authors performed a retrospective review of prospectively collected data of the first 62 consecutive patients treated at Rhode Island Hospital in Providence, Rhode Island, who underwent a TCAR for symptomatic carotid artery stenosis between November 11, 2020, and March 31, 2022. Relevant demographic, comorbidity, and perioperative data were extracted through retrospective chart review. Patients with asymptomatic carotid artery stenosis were excluded. The authors also evaluated patients using pertinent physiological and anatomical high-risk criteria as described in the ROADSTER trial. Risk factors were aggregated to form a composite risk total for every patient. The primary outcome of this study was the 30-day adverse outcome rate of stroke, myocardial infarction, and/or death. Periprocedural stroke was identified by clinical symptoms and radiographic findings. Secondary endpoints included device and procedural success, 30-day mortality, 30-day stroke rate, and postoperative complications., Results: The authors analyzed the first 62 patients with > 50% symptomatic carotid artery stenosis who underwent TCAR at their institution. The mean age of the cohort was 71.5 years, and the cohort was predominantly male (67.7%). The most common high-risk medical criteria were age older than 75 years (45.3%) and severe coronary artery disease (13.6%). The most common anatomical high-risk criteria were high bifurcation (35.1%) and contralateral stenosis requiring treatment within 30 days (15.8%). Fifty percent of patients had at least 1 medical high-risk criterion, 50% had at least 1 anatomical risk criterion, and 82% of patients had 2 or more high-risk criteria of any kind. Among this group, all patients (100%) underwent successful revascularization, with 1 (1.6%) requiring intraprocedural conversion to carotid endarterectomy. Postprocedurally, there was 1 nondisabling stroke (1.6%) and 3 deaths (4.8%) within 30 days of the procedure, with only 1 death directly attributable to the procedure. One patient (1.6%) experienced a neck hematoma. In total, 4 patients (6.5%) experienced a major complication. The overall complication rate was 8.0%., Conclusions: The authors' initial experience with TCAR suggests that it might provide an effective alternative to carotid endarterectomy and carotid artery stenting in the management of symptomatic carotid stenosis in patients with high-risk anatomical and medical characteristics.
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- 2023
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23. Exploring the impact of economic growth on environmental pollution in South American countries: how does renewable energy and globalization matter?
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Ali EB, Shayanmehr S, Radmehr R, Amfo B, Awuni JA, Gyamfi BA, and Agbozo E
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- Cross-Sectional Studies, Environmental Pollution, Internationality, South America, Economic Development, Carbon Dioxide analysis
- Abstract
Most emerging economies and the South American Countries are no exception to the negative consequences of trade-off between economic growth and environmental sustainability decisions. This study draws strength from the United Nations Sustainable Development Goals (UN-SDGs-7, 11, 12, and 13). Therefore, this study examines the environmental nexus between economic growth, globalization, renewable, and non-renewable energy, in South America from 1995 to 2020. We deployed the pooled mean group (PMG), mean group (MG), and dynamic fixed effects (DFE). Cross-sectional dependence, panel unit root, and cointegration tests were performed. Finally, we used the Dumitrescu and Hurlin test of causality to determine the long-run association between variables. The finding indicates that while environmental pollution increases with increasing economic growth, it decreases with increasing renewable energy both in the short and long term. Whereas economic globalization positively affects environmental pollution in the long term, social globalization and the moderation effect between political globalization and renewable energy improves environmental quality in the long run. Finally, a bidirectional causality was found between economic growth and environmental pollution, with a unidirectional causality running from economic, political, and social globalization, renewable, and non-renewable energy to environmental pollution. Given these findings, we discussed potential policy measures., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2023
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24. A new face of food security: A global perspective of the COVID-19 pandemic.
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Saboori B, Radmehr R, Zhang YY, and Zekri S
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COVID-19 has impacted the world economy and food system in many aspects. We conducted a comprehensive examination of global food security during the COVID-19 pandemic by considering the food security index and its four key pillars (affordability, availability, quality and safety, and natural resources and resilience) for 102 countries. In addition to the fixed effect panel data estimator, the Method of Moments Quantile regression is useful for disaggregating the impact of the COVID-19 pandemic in relation to inflation, economic growth, urbanization, and agricultural land on global food security among countries with different levels of food security. We found that COVID-19 has negatively affected food security globally, especially in countries with a low food security level. The effect of income per capita and urbanization rate on the food security index is positive and statistically significant across all quantiles. Inflation rate and agricultural land, however, adversely affect food security, and this effect is stronger for countries with lower levels of food security. The results of affordability, availability, quality, and safety, and natural resources and resilience models provide meaningful implications for governments and policymakers to build resilience in food systems and to be better prepared for future crises and disruptions in the food supply., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 Published by Elsevier Ltd.)
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- 2022
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25. Delayed administration of elezanumab, a human anti-RGMa neutralizing monoclonal antibody, promotes recovery following cervical spinal cord injury.
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Mothe AJ, Jacobson PB, Caprelli M, Ulndreaj A, Rahemipour R, Huang L, Monnier PP, Fehlings MG, and Tator CH
- Subjects
- Animals, Antibodies, Monoclonal pharmacology, Antibodies, Monoclonal therapeutic use, GPI-Linked Proteins, Humans, Membrane Proteins, Nerve Tissue Proteins metabolism, Rats, Recovery of Function physiology, Spinal Cord pathology, Cervical Cord metabolism, Spinal Cord Injuries pathology
- Abstract
Spinal cord injury (SCI) elicits a cascade of degenerative events including cell death, axonal degeneration, and the upregulation of inhibitory molecules which limit repair. Repulsive guidance molecule A (RGMa) is an axon growth inhibitor which is also involved in neuronal cell death and differentiation. SCI causes upregulation of RGMa in the injured rodent, non-human primate, and human spinal cord. Recently, we showed that delayed administration of elezanumab, a high affinity human RGMa-specific monoclonal antibody, promoted neuroprotective and regenerative effects following thoracic SCI. Since most human traumatic SCI is at the cervical level, and level-dependent anatomical and molecular differences may influence pathophysiological responses to injury and treatment, we examined the efficacy of elezanumab and its therapeutic time window of administration in a clinically relevant rat model of cervical impact-compression SCI. Pharmacokinetic analysis of plasma and spinal cord tissue lysate showed comparable levels of RGMa antibodies with delayed administration following cervical SCI. At 12w after SCI, elezanumab promoted long term benefits including perilesional sparing of motoneurons and increased neuroplasticity of key descending pathways involved in locomotion and fine motor function. Elezanumab also promoted growth of corticospinal axons into spinal cord gray matter and enhanced serotonergic innervation of the ventral horn to form synaptic connections caudal to the cervical lesion. Significant recovery in grip and trunk/core strength, locomotion and gait, and spontaneous voiding ability was found in rats treated with elezanumab either immediately post-injury or at 3 h post-SCI, and improvements in specific gait parameters were found when elezanumab was delayed to 24 h post-injury. We also developed a new locomotor score, the Cervical Locomotor Score, a simple and sensitive measure of trunk/core and limb strength and stability during dynamic locomotion., (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2022
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26. Safety of Sheathless Transradial Balloon Guide Catheter Placement for Acute Stroke Thrombectomy.
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Feler J, Hagan MJ, Shaaya E, Anderson M, Poggi J, Chuck C, Bajaj A, Moldovan K, McTaggart RA, Haas RA, Jayaraman MV, and Torabi R
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- Aged, Catheters, Female, Hematoma, Humans, Retrospective Studies, Thrombectomy adverse effects, Thrombectomy methods, Tissue Plasminogen Activator, Treatment Outcome, Ischemic Stroke, Stroke surgery
- Abstract
Background: Transradial access has been described for mechanical thrombectomy in acute stroke, and proximal balloon occlusion has been shown to improve recanalization and outcomes. However, sheathed access requires a larger total catheter diameter at the access site. We aimed to characterize the safety of sheathless transradial balloon guide catheter use in acute stroke intervention., Methods: Consecutive patients who underwent sheathless right-sided transradial access for thrombectomy with a balloon guide catheter were identified in a prospectively collected dataset from 2019 to 2021. Demographics, procedure details, and short-term outcomes were collected and reported with descriptive statistics., Results: A total of 48 patients (20 women) with a mean age of 72.3 years were identified. Of patients, 56.3% had occlusions in the left-sided circulation; 35 (72.9%) had M1 occlusions, 7 (14.6%) had M2 occlusions, and 6 (12.5%) had internal carotid artery occlusions. Tissue plasminogen activator was administered to 16 (33.3%) patients. Five (10.4%) patients underwent intraprocedural carotid stenting. The cohort had successful reperfusion after a median of 1 (interquartile range: 1, 2) pass. Median time from access to recanalization was 31 (interquartile range: 25, 53) minutes. A postprocedural Thrombolysis In Cerebral Infarction score of ≥2b was achieved in 46 (95.8%) patients. Five patients had wrist access site hematomas. All hematomas resolved with warm compresses, and no further intervention was required., Conclusions: Sheathless radial access using a balloon guide catheter may be safely performed for acute ischemic stroke with excellent radiographic outcomes. Further investigation is warranted to evaluate the comparative effectiveness of sheathless compared with sheathed transradial balloon guide access., (Copyright © 2022. Published by Elsevier Inc.)
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- 2022
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27. Management of Sarcopenia: A Network Meta-Analysis of Randomized Controlled Trials.
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Negm AM, Lee J, Hamidian R, Jones CA, and Khadaroo RG
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- Bayes Theorem, Humans, Muscle Strength physiology, Network Meta-Analysis, Randomized Controlled Trials as Topic, Sarcopenia therapy
- Abstract
Objective: This study aimed to determine the comparative effectiveness of interventions in treatment of sarcopenia. The primary outcome was the measure of treatment effect on muscle mass, and secondary outcomes were the treatment effect on muscle strength and physical performance., Design: Systematic review and network meta-analysis (NMA)., Setting and Participants: Participants with sarcopenia receiving interventions targeting sarcopenia in any setting., Methods: Data sources: Relevant RCTs were identified by a systematic search of several electronic databases, including CINAHL, Embase, MEDLINE, and the Cochrane Central Registry of Controlled Trials (CENTRAL) from January 1995 to July 2019. Duplicate title and abstract and full-text screening, data extraction, and risk of bias assessment were performed., Data Extraction: All RCTs examining sarcopenia interventions [mixed exercise (combined aerobic and resistance exercise), aerobic exercise, resistance exercise, balance exercise, physical activity and protein or nutrition supplementation, acupuncture, whole-body vibration, protein supplement or interventions to increase protein intake, any nutritional intervention other than protein, and pharmacotherapy] were included. Comparators were standard care, placebo, or another intervention., Data Synthesis: We performed Bayesian NMA; continuous outcome data were pooled using the standardized mean difference effect size. Interventions were ranked using the surface under the cumulative ranking curve (SUCRA) for each outcome., Results: A total of 59 RCTs were included after screening of 4315 citations and 313 full-text articles. Network meta-analysis of muscle mass outcome (including 46 RCTs, 3649 participants, 11 interventions) suggested that mixed exercise were the most effective intervention (SUCRA = 93.94%) to increase muscle mass. Physical activity and protein or nutrition supplementation, and aerobic exercise were the most effective interventions to improve muscle strength and physical performance, respectively. Overall, mixed exercise is the most effective intervention in increasing muscle mass and was one of the 3 most effective interventions in increasing muscle strength and physical performance., Conclusions and Implications: Mixed exercise and physical activity with nutritional supplementation are the most effective sarcopenia interventions. Most of the included studies have a high risk of bias. More robust RCTs are needed to increase the confidence of our NMA results and the quality of evidence., (Copyright © 2022 AMDA – The Society for Post-Acute and Long-Term Care Medicine. Published by Elsevier Inc. All rights reserved.)
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- 2022
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28. Predicting the degree of difficulty of the trans-radial approach in cerebral angiography.
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Khan NR, Peterson J, Dornbos Iii D, Nguyen V, Goyal N, Torabi R, Hoit D, Elijovich L, Inoa-Acosta V, Morris D, Nickele C, Jabbour P, Peterson EC, and Arthur AS
- Subjects
- Adult, Aged, Aged, 80 and over, Animals, Aorta, Thoracic diagnostic imaging, Aorta, Thoracic surgery, Carotid Arteries diagnostic imaging, Carotid Arteries surgery, Cattle, Cerebral Angiography trends, Female, Forecasting, Humans, Male, Middle Aged, Prospective Studies, Radial Artery surgery, Retrospective Studies, Stroke surgery, Subclavian Artery diagnostic imaging, Subclavian Artery surgery, Cerebral Angiography methods, Radial Artery diagnostic imaging, Stroke diagnostic imaging
- Abstract
Background: To evaluate anatomical and clinical factors that make trans-radial cerebral angiography more difficult., Methods: A total of 52 trans-radial diagnostic angiograms were evaluated in a tertiary care stroke center from December 2019 until March 2020. We analyzed a number of anatomical variables to evaluate for correlation to outcome measures of angiography difficulty., Results: The presence of a proximal radial loop had a higher conversion to femoral access (p<0.03). The presence of a large diameter aortic arch (p<0.01), double subclavian innominate curve (p<0.01), left proximal common carotid artery (CCA) loop (p<0.001), acute subclavian vertebral angle (p<0.01), and absence of bovine aortic arch anatomy (p=0.03) were associated with more difficult trans-radial cerebral angiography and increased fluoroscopy time-per-vessel., Conclusion: The presence of a proximal radial loop, large diameter aortic arch, double subclavian innominate curve, proximal left CCA loop, acute subclavian vertebral angle, and absence of bovine aortic arch anatomy were associated with more difficult trans-radial cerebral angiography. We also introduce a novel grading scale for diagnostic trans-radial angiography., Competing Interests: Competing interests: DH serves as a consultant for Covidien/Medtronic and Microvention; and is a shareholder of Cerebrotech, Marblehead Medical, and Silver Bullett. LE serves as a consultant for Balt, Cerenovus, Medtronic, MicroVention, Penumbra, and Stryker. CN has received research support from Microvention. PJ is a consultant for Medtronic and MicroVention. ECP is a consultant for Cerenovus, Medtronic Neurovascular, Penumbra, and Stryker Neurovascular; and is a shareholder of RIST Neurovascular. ASA is a consultant for Johnson and Johnson, Medtronic, Microvention, Penumbra, Scientia, Siemens, and Stryker; receives research support from Balt, Cerenovus, Medtronic, Microvention, Penumbra, Siemens, and Stryker; and is a shareholder in Bendit, Cerebrotech, Endostream, Magneto, Marblehead, Neurogami, Serenity, Synchron, Triad Medical, and Vascular Simulations., (© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2021
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29. The coronavirus disease 2019: the prevalence, prognosis, and recovery from olfactory dysfunction (OD).
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Samimi Ardestani SH, Mohammadi Ardehali M, Rabbani Anari M, Rahmaty B, Erfanian R, Akbari M, Motedayen Z, Samimi Niya F, Aminloo R, Farahbakhsh F, Hosseininasab A, Hassanlouei B, Rezaian N, and Mokhtari Z
- Subjects
- Adult, Aged, COVID-19 diagnosis, Cross-Sectional Studies, Female, Follow-Up Studies, Humans, Male, Middle Aged, Olfaction Disorders diagnosis, Prevalence, Prognosis, Recovery of Function, Risk Factors, Symptom Assessment, Time Factors, COVID-19 complications, Olfaction Disorders epidemiology, Olfaction Disorders virology
- Abstract
Background: Many patients with coronavirus disease 2019 (COVID-19) complain from olfactory dysfunction (OD). Aims/objectives: To evaluate the prevalence, prognosis, and recovery from OD in COVID-19 patients., Material and Methods: In this study, patients with COVID-19 symptoms who were referred to six different tertiary referral centres were recruited after positive results for COVID-19. All patients were assessed for a one-month follow-up after the initial diagnosis of COVID-19., Results: Three hundred and eleven patients with COVID-19 were recruited in the present study. Two hundred and seven patients (66.6%) had a recent history of OD. One hundred and seventy-eight patients had experienced OD as a primary symptom intercurrent to other COVID-19 symptoms or solely. Sixty-nine patients had OD at the time of presentation to referral centres. Headache and nasal obstruction had significant relationships with recovery from OD in this subgroup, and the platelet count was the most important predictor for the recovery from OD. One hundred seventy-nine (86.4%) patients were nearly or fully recovered from OD approximately a month after the onset of OD., Conclusion: Headache, nasal obstruction, and platelet count may have specific roles as prognostic factors in the recovery from OD.
- Published
- 2021
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30. Quantifying impacts of internships in an international agriculture degree program.
- Author
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Rastegari Henneberry S and Radmehr R
- Subjects
- Agriculture, Curriculum, Female, Humans, Male, Models, Theoretical, Surveys and Questionnaires, Universities, Internship and Residency, Students psychology
- Abstract
The completion of a meaningful, hands-on international experience is a critical and required component of the Master of International Agricultural degree Program (MIAP) at Oklahoma State University. Understanding the impacts of the international experience/internship is important in designing a curriculum that well-prepares students for their personal, social, academic, and future professional life. Hence, the objective of this study is to evaluate the MIAP students' international experiences and to determine the factors that impact international experience outcomes. The benefits of international experiences are divided into five outcome areas that include personal, interpersonal, academic, employment, and civic impacts. The data is collected through an online survey of MIAP students. The variance based partial least squares structural equation modeling is used to develop three separate models with the goal of statistically measuring academic, employment, and civic impacts. The results of this study show that interns believe that international experience had enhanced each of their abilities. The findings of all three models show that the Humphreys travel grant has a statistically significant effect on interpersonal impacts. Additionally, the length of internship has a statistically significant association with personal impact in all three models, while it has a statistically positive indirect impact on academic, employment, and civic impact models, which indicates the full mediation effect. In addition, the number of hours worked weekly during the internship is found to have a significant positive relationship with employment impacts., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2020
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31. Diagnostic biomarker and therapeutic target applications of miR-326 in cancers: A systematic review.
- Author
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Jadideslam G, Ansarin K, Sakhinia E, Babaloo Z, Abhari A, Ghahremanzadeh K, Khalili M, Radmehr R, and Kabbazi A
- Subjects
- Animals, Autoimmunity genetics, Humans, Inflammation genetics, Prognosis, Biomarkers, Tumor genetics, MicroRNAs genetics, Neoplasms genetics
- Abstract
MicroRNAs (miRNAs) are endogenous mediators of RNA interference and have key roles in the modulation of gene expression under healthy, inflamed, stimulated, carcinogenic, or other cells, and tissues of a pathological state. Many studies have proved the association between miRNAs and cancer. The role of miR-326 as a tumor suppressor miRNA in much human cancer confirmed. We will explain the history and the role of miRNAs changes, especially miR-326 in cancers and other pathological conditions. Attuned with these facts, this review highlights recent preclinical and clinical research performed on miRNAs as novel promising diagnostic biomarkers of patients at early stages, prediction of prognosis, and monitoring of the patients in response to treatment. All related publications retrieved from the PubMed database, with keywords such as epigenetic, miRNA, microRNA, miR-326, cancer, diagnostic biomarker, and therapeutic target similar terms from 1899 to 2018 with limitations in the English language. Recently, researchers have focused on the impacts of miRNAs and their association in inflammatory, autoinflammatory, and cancerous conditions. Recent studies have suggested a major pathogenic role in cancers and autoinflammatory diseases. Investigations have explained the role of miRNAs in cancers, autoimmunity, and autoinflammatory diseases, and so on. The miRNA-326 expression has an important role in cancer conditions and other diseases., (© 2019 Wiley Periodicals, Inc.)
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- 2019
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32. Automatic image processing pipeline for tracking longitudinal vessel changes in magnetic resonance angiography.
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Hsu CY, Li Y, Han Y, Elijovich L, Sabin ND, Abuelem T, Torabi R, Faught A, Hua CH, Klimo P, Merchant TE, and Lucas JT Jr
- Subjects
- Adolescent, Adult, Child, Child, Preschool, Female, Humans, Longitudinal Studies, Male, Retrospective Studies, Young Adult, Cerebral Angiography methods, Cerebral Arteries diagnostic imaging, Craniopharyngioma blood supply, Image Interpretation, Computer-Assisted methods, Magnetic Resonance Angiography methods, Pituitary Neoplasms blood supply
- Abstract
Background: Cerebral vessel diameter changes objectively and automatically derived from longitudinal magnetic resonance angiography (MRA) facilitate quantification of vessel changes and further modeling., Purpose: To characterize longitudinal changes in intracranial vessel diameter using time-of-flight (TOF) MRA., Study Type: Retrospective longitudinal study., Subject Population: IN all, 112 pediatric patients, aged 9.96 ± 4.59 years, with craniopharyngioma from 2006-2011 scanned annually., Field Strength/sequence: 1.5T and 3T TOF MRA., Statistical Tests: Chi-square and Wilcoxon-Mann-Whitney tests., Assessment: Manual measurements using interventional angiography was established as a reference standard for diameter measurements. Constant and linear quantile regression with absolute difference, percentage difference, and relative difference was used for outlier detection., Results: Major vessels surrounding the circle of Willis were successfully segmented except for posterior communicating arteries, mostly due to disease-related hypoplasia. Diameter measurements were calculated at 1-mm segments with a median computed vessel diameter of 1.25 mm. Diameter distortion due to registration was within 0.04 mm for 99% of vessel segments. Outlier detection using quantile regression detected less than 4.34% as being outliers. Outliers were more frequent in smaller vessels and proximity to bifurcations (P < 0.001)., Data Conclusion: Using the proposed method, objective changes in vessel diameter can be acquired noninvasively from routine longitudinal imaging. High-throughput analyses of imaging-derived vascular trees combined with clinical and treatment parameters will allow rigorous modeling of vessel diameter changes., Level of Evidence: 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;50:1063-1074., (© 2019 International Society for Magnetic Resonance in Medicine.)
- Published
- 2019
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33. Current Concepts in the Pathogenesis, Diagnosis, and Management of Type I Chiari Malformations.
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Doberstein CA, Torabi R, and Klinge PM
- Subjects
- Humans, Arnold-Chiari Malformation diagnosis, Arnold-Chiari Malformation etiology, Arnold-Chiari Malformation therapy
- Abstract
Type 1 Chiari malformations (CMs) are a group of congenital or acquired disorders which include the abnormal presence of the cerebellar tonsils in the upper spinal canal, rather than the posterior fossa. The resulting anatomic abnormality causes crowding of the structures at the craniocervical junction and can impair the normal flow of cerebral spinal fluid (CSF) in this region. This impairment in CSF flow dynamics can led to the development of syringomyelia or hydrocephalus. Type 1 CMs have been associated with a wide array of symptoms resulting from either cerebellar and brainstem compression and distortion or disturbances in CSF dynamics, and can affect both children and adults. The clinical diagnosis may be difficult. Age usually matters in the clinical presentation, and in symptomatic patients, surgical intervention is usually required. [Full article available at http://rimed.org/rimedicaljournal-2017-06.asp].
- Published
- 2017
34. Current Strategies in the Surgical Management of Ischemic Stroke.
- Author
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Doberstein CA, Torabi R, Yan SC, McTaggart R, Doberstein C, and Jayaraman M
- Subjects
- Brain Ischemia complications, Humans, Stroke etiology, Brain Ischemia surgery, Stroke surgery
- Abstract
Stroke is a major cause of death and disability in the United States and rapid evaluation and treatment of stroke patients are critical to good outcomes. Effective surgical treatments aim to restore adequate cerebral blood flow, prevent secondary brain injury, or reduce the likelihood of recurrent stroke. Patient evaluation in centers with a comprehensive stroke program and a dedicated neuro- vascular team is recommended. [Full article available at http://rimed.org/rimedicaljournal-2017-06.asp].
- Published
- 2017
35. Retraction Note to: Diagnostic investigations of canine prostatitis incidence together with benign prostate hyperplasia, prostate malignancies, and biochemical recurrence in high-risk prostate cancer as a model for human study.
- Author
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Shafiee R, Shariat A, Khalili S, Malayeri HZ, Mokarizadeh A, Anissian A, Ahmadi MR, Hosseini E, Naderafif M, Mohsenzadeh S, Rasoulian MH, Rezapour R, and Pourzaer M
- Published
- 2016
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36. Retraction Note to: Improving the diagnosis, treatment, and biology patterns of feline mammary intraepithelial lesions: a potential model for human breast masses with evidence from epidemiologic and cytohistopathologic studies.
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Manesh JY, Shafiee R, Pedram B, Malayeri HZ, Mohajer S, Ahmadi S, Ahmadi S, Javanbakht J, Mokarizadeh A, and Khadivar F
- Published
- 2016
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37. Retraction Note to: Diagnosis, classification and grading of canine mammary tumours as a model to study human breast cancer: an Clinico-Cytohistopathological study with environmental factors influencing public health and medicine.
- Author
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Shafiee R, Javanbakh J, Atyabi N, Kheradmand P, Kheradmand D, Bahrami A, Daraei H, and Khadivar F
- Abstract
[This retracts the article DOI: 10.1186/1475-2867-13-79.].
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- 2016
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38. Retraction note: Cyto-histopathological and outcome features of the prepuce squamous cell carcinoma of a mixed breed dog.
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Manesh JY, Shafiee R, Bahrami AM, Pourzaer M, Pourzaer M, Pedram B, Javanbakht J, Mokarizadeh A, and Khadivar F
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- 2016
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39. Retraction Note: Comparative value of clinical, cytological, and histopathological features in feline mammary gland tumors; an experimental model for the study of human breast cancer.
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Shafiee R, Javanbakht J, Atyabi N, Bahrami A, Kheradmand D, Safaei R, Khadivar F, and Hosseini E
- Published
- 2016
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40. Retraction note: Cutaneous mast cell tumor (Mastocytoma): cyto-histopathological and haematological investigations.
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Hosseini E, Pedram B, Bahrami AM, Moghaddam MH, Javanbakht J, Ghomi FE, Moghaddam NJ, Koohestani M, and Shafiee R
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- 2016
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41. Management of Locally Recurrent Chordoma of the Mobile Spine and Sacrum: A Systematic Review.
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Ailon T, Torabi R, Fisher CG, Rhines LD, Clarke MJ, Bettegowda C, Boriani S, Yamada YJ, Kawahara N, Varga PP, Shin JH, Saghal A, and Gokaslan ZL
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- Chordoma radiotherapy, Chordoma surgery, Humans, Neoplasm Recurrence, Local radiotherapy, Neoplasm Recurrence, Local surgery, Spinal Neoplasms radiotherapy, Spinal Neoplasms surgery, Treatment Outcome, Chordoma therapy, Neoplasm Recurrence, Local therapy, Sacrum surgery, Spinal Neoplasms therapy
- Abstract
Study Design: Systematic review., Objective: To determine evidence-based guidelines for the management of locally recurrent spinal chordoma., Summary of Background Data: Chordoma of the spine is a low-grade malignant tumor with a strong propensity for local recurrence. Salvage therapy is challenging due to its relentless nature and refractoriness to adjuvant therapies. There are currently no guidelines regarding the best management of recurrent chordoma., Methods: We combined the results of a systematic review with expert opinion to address the following research questions: (1) For locally recurrent chordoma of the spine without systemic disease, if surgery is planned, should en bloc resection be attempted if technically feasible with acceptable morbidity? (2) For locally recurrent chordoma without systemic disease, in which wide en bloc excision is not possible, what is the treatment of choice? (2) Should adjuvant or neoadjuvant radiation therapy be used in the treatment of locally recurrent chordoma?, Results: A total of nine surgical and seven radiation therapy articles met study criteria. Evidence quality was low or very low. Recurrent disease is associated with predominantly poor outcome, regardless of treatment modality. As for primary chordoma, resection with wide margins appears to confer an advantage with respect to local control, although this effect is attenuated in the setting of relapse. Postoperative radiation therapy likely reduces the rate of further relapse., Conclusion: (1) For locally recurrent chordoma of the spine without systemic disease, when surgery is planned, wide en bloc resection should be performed if technically feasible with acceptable morbidity. Strong recommendation, Low Quality of Evidence. (2) For locally recurrent chordoma without systemic disease, in which wide en bloc excision is not possible, partial resection is the treatment of choice. Weak recommendation, Very Low Quality of Evidence. (3) For the treatment of locally recurrent chordoma, high-dose conformal radiation therapy should be administered postoperatively to reduce the risk of further recurrence, and may be considered as a primary therapy. Strong recommendation, Very Low Quality of Evidence., Level of Evidence: 2.
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- 2016
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42. Deep brain stimulation for the obsessive-compulsive and Tourette-like symptoms of Kleefstra syndrome.
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Segar DJ, Chodakiewitz YG, Torabi R, and Cosgrove GR
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- Chromosome Deletion, Chromosomes, Human, Pair 9, Craniofacial Abnormalities complications, Female, Heart Defects, Congenital complications, Humans, Intellectual Disability complications, Longitudinal Studies, Magnetic Resonance Imaging, Obsessive-Compulsive Disorder complications, Young Adult, Craniofacial Abnormalities therapy, Deep Brain Stimulation methods, Heart Defects, Congenital therapy, Intellectual Disability therapy, Internal Capsule physiology, Obsessive-Compulsive Disorder therapy, Tourette Syndrome physiopathology
- Abstract
Deep brain stimulation (DBS) has been reported to have beneficial effects in severe, treatment-refractory cases of obsessive-compulsive disorder (OCD) and Tourette syndrome (TS). In this report, the authors present the first case in which DBS was used to treat the neuropsychiatric symptoms of Kleefstra syndrome, a rare genetic disorder characterized by childhood hypotonia, intellectual disability, distinctive facial features, and myriad psychiatric and behavioral disturbances. A 24-year-old female patient with childhood hypotonia, developmental delay, and diagnoses of autism spectrum disorder, OCD, and TS refractory to medical management underwent the placement of bilateral ventral capsule/ventral striatum (VC/VS) DBS leads, with clinical improvement. Medical providers and family observed gradual and progressive improvement in the patient's compulsive behaviors, coprolalia, speech, and social interaction. Symptoms recurred when both DBS electrodes failed because of lead fracture and dislodgement, although the clinical benefits were restored by lead replacement. The symptomatic and functional improvements observed in this case of VC/VS DBS for Kleefstra syndrome suggest a novel indication for DBS worthy of further investigation.
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- 2015
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43. Diagnostic investigations of canine prostatitis incidence together with benign prostate hyperplasia, prostate malignancies, and biochemical recurrence in high-risk prostate cancer as a model for human study.
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Shafiee R, Shariat A, Khalili S, Malayeri HZ, Mokarizadeh A, Anissian A, Ahmadi MR, Hosseini E, Naderafif M, Mohsenzadeh S, Rasoulian MH, Rezapour R, and Pourzaer M
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- Animals, Biomarkers, Tumor genetics, Disease Models, Animal, Dogs, Humans, Male, Prostatic Hyperplasia diagnosis, Prostatic Hyperplasia genetics, Prostatic Hyperplasia veterinary, Prostatic Neoplasms diagnosis, Prostatic Neoplasms genetics, Prostatic Neoplasms veterinary, Prostatitis diagnosis, Prostatitis genetics, Prostatitis veterinary, Risk Factors, Carcinogenesis genetics, Prostatic Hyperplasia pathology, Prostatic Neoplasms pathology, Prostatitis pathology
- Abstract
The aim of this study was to evaluate the prevalence of acute and chronic inflammation, benign prostatic hyperplasia (BPH), and cancer of the prostate glands in the canine as a human model in prostate disorders. The study was carried out on 12 cases of different male dogs of terrier (50%), German shepherd (25%) breeds, and Greden (25%), and the age of the dogs ranged from 6 to 13 years (average age 7.8 ± 3.6). The bodyweight ranged from 3.6 to 7.9 kg. Signalment, clinical signs, and diagnostic tools such as ultrasonography, urinary cytology, and histopathology are presented. Dysuria was the most common clinical sign in this study and occurred in 10/12 canine (83.3%) included. Other clinical signs included lameness (5/12 canine, 41.6%) and constipation (3/12 canine, 25%). The range of duration of clinical signs was 5 days to 7 months. Moreover, in the present study, the urinary biochemical markers of different prostate lesions include blood, protein, and glucose and were detected in 11/12 cases (91.6%), 5/12 cases (41.6%), and 2/12 cases (16.6%), respectively. Taken together, sonographic data were classified into four groups based on histological diagnosis. In 7/12 cases (58.4%), the prostate appeared to have BPH lesions, and the remaining lesions included inflammation (3/12 cases, 25%), abscess (1 case, 8.3%), and adenocarcinoma (1 case, 8/3%) on ultrasound. In all cases, prostate tissue had an irregular echotexture. None of the dogs had sonographic evidence of sublumbar lymph node enlargement. Histopathologically, we looked at the prevalence of inflammation (33.3% chronic and 8.3% acute) and BPH (58.4%) in dogs of different ages and breeds, and also, we observed chronic inflammation in >20% of dogs, which was about 25% in 3 cases of the 12 cases referred. More chronic inflammation was associated with more BPH. The majority of the asymptomatic inflammation that is detected in the prostate is classified as chronic inflammation (i.e., as evidenced by the presence of monocytic and/or lymphoplasmacytic inflammatory cell infiltrates); however, acute inflammation is also observed to a lesser degree. Acute inflammation, as is typically evidenced by the infiltration of neutrophils, is classically an indicator of an infectious process. Finally, the patients included seven castrated, four castrated together with antibiotic therapy, and one castrated together with chemotherapy intact male dogs, which were treated with the mentioned cases. In conclusion, chronic prostatic inflammation could be a central mechanism in BPH progression, but the pathological features of tissue inflammation were different between BPH and prostate cancer (PCa). Nevertheless, the histological examination of prostate biopsies remains the only way to diagnose prostatic disorders.
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- 2015
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44. Improving the diagnosis, treatment, and biology patterns of feline mammary intraepithelial lesions: a potential model for human breast masses with evidence from epidemiologic and cytohistopathologic studies.
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Manesh JY, Shafiee R, Pedram B, Malayeri HZ, Mohajer S, Ahmadi S, Ahmadi S, Javanbakht J, Mokarizadeh A, and Khadivar F
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- Animals, Cats, Disease Models, Animal, Female, Humans, Tumor Burden, Mammary Glands, Animal pathology, Mammary Neoplasms, Experimental diagnosis, Mammary Neoplasms, Experimental therapy
- Abstract
In this study, the frequency of different types of mammary masses and their relationship with cytohistopathologic changes was investigated and data on history, macroscopic description, clinical examination and treatment were collected. To determine the prevalence and types of cytohistopathologic changes, mammary glands from 12 female cats were evaluated. The mean age of cats at the time of diagnosis was 11.5 ± 1.9 years (range 4-14 years), the mean gross size of the masses was 3.1 ± 2.4 cm, 4/12 (33.3 %) masses were ≤3.0 cm in diameter, and the maximum diameter of the largest mass had a median of 5 cm, with a range of diameter of 6 × 5 × 4 cm. Moreover, the preferential localization of mammary masses was the abdominal lobes (%50) and thoracic lobes (%33.3), and inguinal lobes (%16.7 of cases). Furthermore, two cases of the inguinal masses affected the caudo-inguinal lobe, six cases caudo-abdominal lobe, and thoracic masses were found in four cases. Eventually, six cases (%50) of masses were found in the right mammary lobes and six cases (%50) in the left mammary lobes. The majority of the masses revealed elastic (%50 of cases), hard (%25 of cases), or soft (%25 of cases) consistency. In the present study, according to the criteria of the veterinary and the medical WHO classification system, of the 12 cats with the cytohistopathological features of six (50 %) cases qualified abscess, 3 (25 %) cases as cystic hyperplasia and 3 (25 %) cases were called situ carcinoma. Whereas, all hyperplastic lesions (case nos. 7-9 and ranging in size from, 1 to >4 cm(3)) and carcinomas in situ lesions (case nos. 10-12 and ranging in size from, 1 to >3 cm(3)) were found incidentally upon routine cytohistology. Other lesions were observed grossly and removed either at surgery (case nos. 1-6). Finally, the cats were treated with unilateral lumpectomy (3 cases) and also, nine (75 %) cases had subsequent drainage, 3 (25 %) of which showed cystic hyperplasia and 6 (50 %) showed abscess on subsequent histopathological evaluation. Therefore, a correct diagnosis must be established quickly, and treatment must be instituted rapidly when alteration is noted in the mammary glands.
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- 2014
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45. A new report on the occurrence of clinico-histopathological diagnostic criteria for Spinodiplotriaena.
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Javanbakht J, Hosseini E, Karimi S, Hassan MA, Sabbagh A, Mousavi S, Fattahi R, Khaki F, and Shafiee R
- Abstract
Parasitic diseases of wild birds follows its companion volume, infectious diseases of wild birds, both of which complement the third edition of infectious diseases of wild mammals and second edition of parasitic diseases of wild mammals. In October 2012, a mature black male mynah with lack of balance and ataxia was brought into the birds department of educational hospital in veterinary medicine faculty of Tehran University. Because of no cure in clinical signs after several days of empirical therapy euthanasia and clinical pathology studies were performed. There was no microscopic pathological lesions in brain, bone marrow, heart, lung, liver and the microscopic results were as following; bone marrow: hemophagocytosis reactive macrophages, liver: infiltration of inflammatory cells (hepatitis) and hemosiderin-laden macrophages. Lung: hemosiderin-laden macrophages and spleen findings: infiltration of inflammatory cells, heterophils with phagocytic bacteria. In abdominal cavity two male and one female parasite was detect. Three parasites were cleared with lactophenol and investigated under the light microscopy and important morphological parts of them measured. Also these parasites in serum containing send to the department of parasitology. Based on all collecting data, Spinodiplotriaena (three parasites each by the length of 2/5, 1/7 and 1/5 cm were found) were diagnosed. Report of this case in important because of first report of this infection in a black mynah in Iran.
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- 2014
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46. Cyto-histopathological and outcome features of the prepuce squamous cell carcinoma of a mixed breed dog.
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Yaghoobi Yeganeh Manesh J, Shafiee R, Mohammad Bahrami A, Pourzaer M, Pourzaer M, Pedram B, Javanbakht J, Mokarizadeh A, and Khadivar F
- Subjects
- Animals, Biopsy, Fine-Needle veterinary, Carcinoma, Squamous Cell pathology, Cell Transformation, Neoplastic pathology, Dogs, Erythema pathology, Erythema veterinary, Male, Microscopy veterinary, Penile Neoplasms pathology, Predictive Value of Tests, Skin Neoplasms pathology, Staining and Labeling veterinary, Tumor Burden, Carcinoma, Squamous Cell veterinary, Cytodiagnosis veterinary, Dog Diseases pathology, Penile Neoplasms veterinary, Penis pathology, Skin Neoplasms veterinary
- Abstract
Background: Squamous cell carcinomas (SCCs) are uncommon, high-grade tumors, predominantly composed of round cells in the prepuce. The aim of this study is to better define the clinicopathologic features of this neoplasm., Case Report: We conducted cyto-histopathologic analysis on the manifestations of the prepuce SCC by H & E staining in a terrier mix dog. Grossly, tumor was large, multiple erythematous patch, and ulcerated masses frequently affecting the prepuce and deeply invading to distal prepuce out from the ventro-lateral of penis and the tumor covered by a necrotic discharge. Cytological evaluation of fine-needle aspirates from the cutaneous mass from the prepuce comprised of round nuclei, coarse chromatin pattern, distinct nucleoli and nuclear pleomorphism. Furthermore, the neoplastic cells were pleomorphic, round to caudate in shape, exhibiting prominent anisokaryosis and anisocytosis with rare mitotic features. Microscopically, the lesions were predominantly composed of atypical round cells disposed in interlacing fascicles. Frequent findings include keratin formation, horn pearls, mitoses and cellular atypia. The cells showed distinct borders, ranged from polygonal to round or elongate and had moderate amounts of eosinophilic cytoplasm., Conclusion: The histopathologic features coupled with the cytopathology findings led to a diagnosis of squamous cell carcinoma. To the authors' knowledge, this is the first time that multiple erythematous plaques have undergone malignant transformation in a terrier mix dog., Virtual Slides: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5748771971272873.
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- 2014
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47. Cutaneous mast cell tumor (Mastocytoma): cyto- histopathological and haematological investigations.
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Hosseini E, Pedram B, Bahrami AM, Moghaddam MH, Javanbakht J, Ghomi FE, Moghaddam NJ, Koohestani M, and Shafiee R
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- Animals, Cytodiagnosis, Dogs, Female, Mastocytoma, Skin pathology, Dog Diseases pathology, Mastocytoma, Skin veterinary
- Abstract
Cutaneous mast cell tumours (MCTs) are the most common skin tumours in dogs. Due to the prevalence of canine MCTs and the variable biologic behavior of this disease, accurate prognostication and a thorough understanding of MCT biology are critical for the treatment of this disease. A cytologic diagnosis of mast cell tumor with evidence of prior hemorrhage was made, and the masses were surgically removed. Cytological evaluation of fine-needle aspirates from the cutaneous mass from the axillary comprised many well-differentiated, highly granulated mast cells with moderate numbers of eosinophils. Nuclei were varied in size and shape with high nuclear'to'cytoplasmic ratio, prominent nucleoli, marked atypical and mitotic figures. Microscopically, mass consisted of sheets of neoplastic round cells that formed nonencapsulated nodules in the dermis and infiltrated into the adjacent dermal collagen, and also there was diffuse subcutis invasion of round to pleomorphic tumor cells. Tumor cells had moderate to abundant cytoplasm, round to ovoid nuclei with scattered chromatin, and mitotic figures. In this tumor, cytoplasmic granules showed atypical metachromasia. In addition, eosinophils were scattered among the mast cells at the periphery of the nodules. The presence of eosinophils and the observation, at high magnification, of cells with cytoplasmic metachromatic granules. Invasion of the deep subcutaneous fat or cutaneous muscles were a common feature of grade III tumour. Finally, a diagnosis of grade III cutaneous mast cell tumor was made., Virtual Slides: The virtual slide(s) of this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/4755249151157024.
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- 2014
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48. Comparative value of clinical, cytological, and histopathological features in feline mammary gland tumors; an experimental model for the study of human breast cancer.
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Shafiee R, Javanbakht J, Atyabi N, Bahrami A, Kheradmand D, Safaei R, Khadivar F, and Hosseini E
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- Adenocarcinoma pathology, Animals, Biopsy, Fine-Needle, Carcinoma surgery, Cats, Disease Models, Animal, Female, Humans, Lymph Node Excision, Mammary Glands, Animal surgery, Mammary Neoplasms, Animal surgery, Mastectomy, Mitotic Index, Neoplasm Grading, Paraffin Embedding, Predictive Value of Tests, Species Specificity, Staining and Labeling, Tissue Fixation, Carcinoma pathology, Mammary Glands, Animal pathology, Mammary Neoplasms, Animal pathology
- Abstract
Background: The diagnosis of breast lesions is usually confirmed by fine-needle aspiration cytology (FNAC) or histological biopsy. Although there is increasing literature regarding the advantages and limitations of both modalities, there is no literature regarding the accuracy of these modalities for diagnosing breast lesions in high-risk patients, who usually have lesions detected by screening. Moreover, few studies have been published regarding the cytopathology of mammary tumors in cats despite widespread use of the animal model for breast cancer formation and inhibition. The objective of the present study was to evaluate the diagnostic interest of cytological and histopathological analysis in feline mammary tumours (FMTs), in order to evaluate its possible value as an animal model., Methods: The study was performed in 3 female cats submitted to surgical resections of mammary tumours. The mammary tumours were excised by simple mastectomy or regional mastectomy, with or without the superficial inguinal lymph nodes. Female cats were of different breeds (1 siamese and 2 persians). Before surgical excision of the tumour, FNA cytology was performed using a 0.4 mm diameter needle attached to a 8 ml syringe held in a standard metal syringe holder. The cytological sample was smeared onto a glass slide and either air-dried for May-Grünwald-stain and masses were surgically removed, the tumours were grossly examined and tissue samples were fixed in 10%-buffered-formalin and embedded in paraffin. Sections 4 μm thick were obtained from each sample and H&E stained., Results: Cytologically, atypical epithelial cells coupled to giant nucleus, chromatin anomalies, mitotic figures, spindle shape cells, anisocytosis with anisokaryosis and hyperchromasia were found. Histologically, these tumors are characterized by pleomorphic and polygonal cell population together with mitotic figures, necrotic foci and various numbers inflammatory foci. Also, spindle shaped cells, haemorrhage localized in the different regions, local invasiveness and enlarged nuclei were observed. The samples included 3 tumors of mammary glands mammary tumors were complex carcinomas (n = 2) and adenocarcinoma (n = 1). The histological grades of the 3 cases were as follows: grade II, (1/3); grade III, (2/3) with high mitotic index. The preferential localization of mammary neoplasms was in the inguinal lobe (1/3 case) and abdominal lobes (2/3 cases). Furthermore, 1case of the inguinal mass affected the left caudo-inguinal lobe and 2cases right cranio and caudo abdominal lobes., Conclusion: The study concluded that cytology could be used as a quick, rapid, field diagnostic technique in combination with histopathology for the diagnosis of feline mammary tumors (FMTs). Our findings in feline MTs indicate that FMTs could be useful as an animal model of human breast cancer. Moreover, because of the similarity of the cytohistopathological findings in the human and feline mammary gland tumours, it is possible to use the same cytopathological criteria applied in human pathology for the diagnosis of feline mammary gland tumours., Virtual Slide: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2047361423103295.
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- 2013
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49. Diagnosis, classification and grading of canine mammary tumours as a model to study human breast cancer: an Clinico-Cytohistopathological study with environmental factors influencing public health and medicine.
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Shafiee R, Javanbakht J, Atyabi N, Kheradmand P, Kheradmand D, Bahrami A, Daraei H, and Khadivar F
- Abstract
Background: The human "Elston and Ellis grading method" was utilized in dogs with mammary tumor to examine its relation to prognosis in this species, based on a 2-year follow-up period. Although cytopathology is widely used for early diagnosis of human neoplasms, it is not commonly performed in veterinary medicine. Our objectives in this study were to identify cytopathology criteria of malignancy for canine mammary tumors and the frequency of different types of mammary lesions and their relationship with histologic grade was investigated. Another aim of this study was to differentiate the simple and adenocarcinoma tumors from the complex or mixed tumor described by Elston and Ellis grading method., Methods: The study was performed in 15 pure or mixed-breed female dogs submitted to surgical resections of mammary tumours. The mammary tumours were excised by simple mastectomy or regional mastectomy, with or without the superficial inguinal lymph nodes. Female dogs were mainly terriers (9 dogs) or mixed (3 dogs), the 3 other animals were a German shepherd, Dachshund and Pekingese. Before surgical excision of the tumour, FNAC was performed using a 0.6 mm diameter needle attached to a 10 ml syringe held in a standard metal syringe holder. The cytological sample was smeared onto a glass slide and either air-dried for May-Grünwald-stain, or ethanol-fixed for Papanicolaou stain and masses were surgically removed, the tumours were grossly examined and tissue samples were fixed in 10%-buffered-formalin and embedded in paraffin. Sections 4 μm thick were obtained from each sample and H&E stained., Results: We obtained a correct cytohistological correlation in 14/15 cases (93.3%) when all cytopathological examinations were considered. Of the 15 cases examined, 2(13.3%) had well-differentiated (grade I), 6(40%) had moderately differentiated (grade II) and 7(46.7%) had poorly differentiated (grade III) tumours. Classification of all canine mammary gland lesions revealed 13(86.7%) malignant and 2(13.3%) benign tumors. The histological examination showed that the most common tumor types of mammary glands in bitches were: complex carcinoma, adenocarcinoma, malignant mixed tumour, benign mixed tumour, simple carcinoma- (5/15; 33.3%), (3/15; 20%), (3/15; 20%) and (2/15;13.3%), respectively. Simple carcinoma and cystic hyperplasia were less common - (1/15; 6.7%), and (1/15; 6.7%), respectively. Moreover, the most often tumors occur in inguinal mammary (60%) and abdominal (27%) glands., Conclusions: Our results demonstrate that, because of the similarity of the cytohistopathological findings in the human and canine mammary gland tumours, it is possible to use the same cytopathological criteria applied in human pathology for the diagnosis of canine mammary gland tumours. Furthemoer, routine use of this human grading method would help the clinician to make a more accurate prognosis in the interests of post-surgical management in dogs with mammary carcinomas. Furthermore, this research will allow a more discriminating classification of mammary tumors and probably has a bearing on cytohistopathology, epidemiology, pathogenesis and prognosis. The most often tumors occur in inguinal mammary (60%) and abdominal (27%) glands. This interesting regional difference may be due to a) the duration of the growth before the diagnosis; b) the age of the dogs; and c) high prevelance of unspayed animals. Moreover, the most common type of tumor was complex carcinoma - 33.3% (5 cases).
- Published
- 2013
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50. An overall assessment of circumanal gland adenoma in a terrier mix breed dog.
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Javanbakht J, Tavassoli A, Sasani F, Sabbagh A, Hassan MA, Samakkhah SA, Shafiee R, Jani M, Alimohammadi S, Samani R, Barati F, and Ghalee VR
- Subjects
- Adenoma pathology, Adenoma surgery, Animals, Dog Diseases, Dogs, Male, Treatment Outcome, Adenoma veterinary, Anal Gland Neoplasms pathology, Anal Gland Neoplasms surgery, Perianal Glands pathology
- Abstract
In September 2012, a 10-year-old, intact male, terrier mix breed dog was evaluated because of multiple, 0.5 to 1.2 cm in diameter, round, intradermal nodules around the anus. It had surgery to excise a firm, painful swelling in the left ventrolateral perianal region and the excision part was observed under light microscopy. The mass spreading in to sub acute was of left hind leg out from the ventro-lateral of anus, 1.2 cm×1 cm/ 0 cm×0.5 cm in size and 125 g in weight. A complete blood cell count, serum biochemistry panel, and urinalysis (cystocentesis sample) were evaluated. Significant laboratory data demonstrated microcytic anemia (hemoglobin of 6.4 mg/dL) and normal coagulation times. No remarkable abnormalities were found in the complete blood count and an ionized calcium of 1.91 mmol/L (reference range, 1.1-1.3 mmol/L) was confirmed hypercalcemia. On cytologic and histopathologic examinations, evaluation of the aspirate revealed a prominent population of round-to-polygonal nucleated cells arranged as cohesive groups with isolated individual cells. A mild degree of anisocytosis and anisokaryosis was observed. In addition, smaller reserve type cells, with darker cytoplasm and a higher nucleocytoplasmic ratio. The adenomas generally retain the lobular architecture, but some may contain focal areas of cellular pleomorphism. These changes may suggest malignant transformation and have led to discordant interpretations, the well-developed stroma surrounding the lobules and hepatoid cells was noted. Ulceration, hemorrhage, necrosis and secondary infection with inflammatory cell infiltrates are common. These cytology and histopathology features are consistent with hepatoid gland adenoma.
- Published
- 2013
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