Publications by authors named "Amir Mahmoud Ahmadzadeh"

Objectives: We aimed to measure lumbosacral vertebral angles in routine lumbar sagittal MRIs and assess their association with lumbosacral transitional vertebrae (LSTV).

Methods: We recruited 220 patients referring to our hospital for routine lumbar MRI during 2020-2021. All the participants were subject to routine sagittal lumbar MRI, whole spine localizer scan, and coronal MRI to numerate lumbar vertebrae.

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Background: Ulcerative colitis (UC) is an inflammatory disorder of the large intestine characterized by inflammation in the mucosal tissue of the colon and rectal area. In the present pilot study, we assessed the efficacy of combining mebendazole with mesalamine in moderate UC patients.

Methods: In the present exploratory pilot trial, designed to assess both the safety and preliminary efficacy of mebendazole, a total number of 10 moderate UC patients with Mayo scores ranging from 6 to 9 were enrolled.

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Background And Purpose: Accurate glioma segmentation has the potential to enhance clinical decision-making and treatment planning. Uncertainty quantification methods, including conformal prediction (CP), can enhance segmentation models reliability. CP quantifies uncertainty with statistical confidence guarantees.

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The World Health Organization glioma classification highlights genetic profiles, such as isocitrate dehydrogenase (IDH) mutation. This study developed an uncertainty-aware deep learning model to predict IDH mutations in glioma patients, employing conformal prediction (CP) for uncertainty quantification (UQ). The UCSF dataset split into training (70%) and validation (30%) sets, and the UPENN dataset divided into calibration (30%) and external test (70%) sets.

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Purpose: High-grade clear cell renal cell carcinoma (ccRCC) is linked to aggressive behavior, higher metastatic potential, and poor overall prognosis. This study aims to assess the diagnostic performance of CT-based radiomics models for preoperative differentiation of high-grade from low-grade ccRCC.

Methods: A comprehensive systematic search was conducted across PubMed, Scopus, and Embase.

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Purpose: High-grade clear cell renal cell carcinoma (ccRCC) is linked to lower survival rates and more aggressive disease progression. This study aims to assess the diagnostic performance of MRI-derived radiomics as a non-invasive approach for pre-operative differentiation of high-grade from low-grade ccRCC.

Methods: A systematic search was conducted across PubMed, Scopus, and Embase.

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Purpose: We conducted a systematic review and meta-analysis to evaluate the performance of magnetic resonance imaging (MRI)-derived deep learning (DL) models in predicting 1p/19q codeletion status in glioma patients.

Methods: The literature search was performed in four databases: PubMed, Web of Science, Embase, and Scopus. We included the studies that evaluated the performance of end-to-end DL models in predicting the status of glioma 1p/19q codeletion.

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N-methyl-D-aspartate receptors (NMDARs), a subclass of glutamate-gated ion channels, play an integral role in the maintenance of synaptic plasticity and excitation-inhibition balance within the central nervous system (CNS). Any irregularities in NMDAR functions, whether hypo-activation or over-activation, can destabilize neural networks and impair CNS function. Several decades of experimental and clinical investigations have demonstrated that NMDAR dysfunction is implicated in the pathophysiology of various neurological disorders.

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Background: The 1p/19q codeletion is a key genetic marker in gliomas and plays a crucial role in prognosis and treatment decisions. Traditional methods for detecting this genetic alteration rely on invasive tissue biopsies.

Purpose: This systematic review and meta-analysis aimed to evaluate the performance of MRI-derived radiomics-based models to predict glioma 1p/19q codeletion status.

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Cedrol is a natural sesquiterpene subgroup of terpenes with antioxidant and anti-inflammatory properties. This study evaluated the effect of cedrol on the 6-hydroxydopamine (6-OHDA) rat model of Parkinson's disease (PD). Unilateral injection of 6-OHDA was performed to induce the PD model.

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Purpose: We aimed to systematically assess the value of radiomics/machine learning (ML) models for diagnosing microvascular invasion (MVI) in patients with cholangiocarcinoma (CCA) using various radiologic modalities.

Methods: A systematic search of was conducted on Web of Sciences, PubMed, Scopus, and Embase. All the studies that assessed the value of radiomics models or ML models along with the use of imaging features were included.

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Background: The natural compound cedrol possess anti-inflammatory and antioxidant properties. We sought to assess the neuroprotective effect of cedrol in an animal model of transient global ischemia/reperfusion (I/R) injury.

Method: To induce transient global cerebral I/R injury, bilateral carotid arteries were temporarily occluded for 20 min.

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Objectives: Rutin is a bioflavonoid compound renowned for its anti-oxidative, anti-inflammatory, and antinociceptive properties. The present study aims to assess its therapeutic efficacy on complete Freund's adjuvant (CFA)induced inflammatory pain.

Materials And Methods: Arthritis was induced in Wistar rats via subcutaneous administration of CFA into the right hind paw.

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Stroke is a serious life-threatening medical condition. Understanding the underlying molecular mechanisms of this condition is crucial to identifying novel therapeutic targets that can improve patient outcomes. Autophagy is an essential mechanism for the destruction of damaged intracellular components that maintains homeostasis in physiological or pathological conditions.

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Background: Quantitative Susceptibility Mapping (QSM) provides a non-invasive post-processing method to investigate alterations in magnetic susceptibility (χ), reflecting iron content within brain regions implicated in neurodegenerative diseases (NDDs).

Purpose: To investigate alterations in thalamic χ in patients with NDDs using QSM.

Study Type: Systematic review and meta-analysis.

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Article Synopsis
  • Prostate cancer is a prevalent and serious health issue for men, and this study aims to evaluate how effective radiomics is in predicting the cancer grade.
  • The research systematically reviewed 43 studies involving nearly 10,000 patients, using advanced imaging techniques and established quality assessment tools to analyze data.
  • Results indicate that radiomics models show high accuracy in predicting prostate cancer grades, suggesting they could enhance traditional diagnostic methods and improve clinical decision-making.
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We aimed to systematically review and meta-analyze the predictive value of magnetic resonance imaging (MRI)-derived radiomics/end-to-end deep learning (DL) models in predicting glioma alpha thalassemia/mental retardation syndrome X-linked (ATRX) status. We conducted a comprehensive search across four major databases-Web of Science, PubMed, Scopus, and Embase. All the studies that assessed the performance of radiomics and/or end-to-end DL models for predicting glioma ATRX status were included.

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Article Synopsis
  • Diabetes mellitus is a major global health concern, leading to various complications that affect patients' quality of life.
  • While there are several medications available for diabetes management, there is currently no definitive cure, highlighting the need for new therapies.
  • Resveratrol, a natural polyphenol with antioxidant and anti-inflammatory properties, shows promise as a complementary treatment, and this study examines how it works against diabetes and its related complications.
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BackgroundPrevious research has shown promising results for treating intracranial aneurysms (IAs) with a flow redirection endoluminal device (FRED). In this systematic review and meta-analysis, we aimed to assess the safety and efficacy of this device by providing pooled estimates using the data from previous studies.MethodsA systematic literature search of Web of Sciences, PubMed, Scopus, and Embase was performed until October 8th, 2023.

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Background: Follistatin-like proteins (FSTLs) are adipomyokines secreted by adipocytes and myocytes. Previous studies have reported an increase in circulating FSTL1 levels in response to cardiovascular injuries. In this study, we conducted a systematic review and metaanalysis to assess the association between circulating FSTLs and Cardiovascular Diseases (CVDs).

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Background: The attentive management of rheumatoid arthritis (RA) has attracted particular attention. The German 7-joint Ultrasound (US-7) is the first scoring system that combines bone erosions and soft tissue lesions in a single composite scoring system. This study aimed to assess the correlation between US-7 and Disease Activity Score Using 28 Joint Counts (DAS28) in clinically active RA patients.

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Pancreatic cancer is a highly aggressive malignancy with a very poor prognosis. The 5- year survival in these patients is very low, and most patients develop drug resistance to current therapies, so additional studies are needed to identify the potential role of new drug targets for the treatment of pancreatic cancer. Recent investigations have been performed regarding the roles of pro-renin receptors (PRR) in the initiation and development of cancers.

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Background: Chemotherapy-induced peripheral neuropathy (CIPN) is a serious adverse effect of cisplatin. The current study aimed to determine whether PEGylated nanoliposomal cisplatin can limit CIPN in an animal model.

Methods: Cisplatin-loaded PEGylated liposome nanoparticles (Cis-PL) were produced as a combination of lecithin, cholesterol, and DSPE-mPEG2000 in a molar ratio of 50:45:5 and were characterized by polydispersity index (PDI), zeta potential, Field emission scanning electron microscopy (FESEM) analysis, as well as encapsulation efficiency (EE).

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Neuropathic pain is a disabling condition caused by various diseases and can profoundly impact the quality of life. Unfortunately, current treatments often do not produce complete amelioration and can be associated with potential side effects. Recently, herbal drugs have garnered more attention as an alternative or a complementary treatment.

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