Publications by authors named "Saeed Oraee Yazdani"

Background: Cerebrospinal fluid diversion via shunt placement is a common neurosurgical intervention. Keen's Point is a widely used landmark for accessing the trigone of the lateral ventricle; however, it lacks clinical validation. This study re-evaluates Keen's Point scalp parameters using magnetic resonance imaging (MRI) to identify an ideal shunt entry point based on 3-dimensional reconstructions.

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Objective: To investigate the efficacy of intrathecal combined administration of autologous bone marrow-derived mesenchymal stem cells (BMSCs) and Schwann cells (SCs) in urinary function improvement in complete spinal cord injury (SCI) patients for the first time.

Methods: This study was a randomized phase II clinical trial, including treatment and control arms. Patients with traumatic complete SCI-induced neurogenic bladder were included.

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Article Synopsis
  • * The connectome is like a map of these connections, and studying it helps doctors discover new treatments for brain disorders.
  • * Artificial Intelligence (AI) helps analyze connectome data to improve diagnosis and treatments, but researchers need to fix problems like small data sets and bias for better results in the future.
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Glioblastoma multiforme (GBM) is a highly aggressive brain tumor with a poor prognosis. The cleavage factor Im 25 (CFIm25), a crucial component of the CFIm complex, plays a key role in regulating the length of the mRNA 3'-UTR and has been implicated in various cancers, including GBM. This study sought to investigate the regulatory influence of specific microRNAs (miRNAs) on CFIm25 expression in GBM, a highly aggressive brain tumor.

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Objective: Neurological and functional impairments are commonly observed in individuals with spinal cord injury (SCI) due to insufficient regeneration of damaged axons. Exosomes play a crucial role in the paracrine effects of mesenchymal stem cells (MSCs) and have emerged as a promising therapeutic approach for SCI. Thus, this study aimed to evaluate the safety and potential effects of intrathecal administration of allogeneic exosomes derived from human umbilical cord MSCs (HUC-MSCs) in patients with complete subacute SCI.

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Objective: Malignant gliomas constitute the most common type of primary malignant brain tumors. Most previous studies have evaluated the epidemiology of malignant gliomas in developed countries. Hence, there is a lack of evidence in this regard from developing countries.

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Context: Electroporation is a technique that creates electrically generated pores in the cell membrane by modifying transmembrane potential. In this work, the finite element method (FEM) was used to examine the induced transmembrane voltage (ITV) of a spherical-shaped MCF-7 cell, allowing researchers to determine the stationary ITV. A greater ITV than the critical value causes permeabilization of the membrane.

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Background: Malignant gliomas are known with poor prognosis and low rate of survival among brain tumors. Resection surgery is followed by chemotherapy and radiotherapy in treatment of gliomas which is known as the conventional treatment. However, this treatment method results in low survival rate.

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Background: Radiotherapy (RT) is a feasible adjuvant therapeutic option for managing intracranial pathologies. One of the late complications of RT that frequently develops within months following RT is radiation necrosis (RN). Corticosteroids are the first-line therapeutic option for RNs; however, in case of unfavorable outcomes or intolerability, several other options, including bevacizumab, laser interstitial thermal therapy, surgery, and hyperbaric oxygen therapy (HBOT).

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Article Synopsis
  • The study investigates the use of human placental mesenchymal stem cell-derived exosomes (HPMSCs-Exosomes) to treat severe spinal cord injuries (SCI) in rats, focusing on improvements in motor function.
  • Researchers conducted intrathecal injections of these exosomes during the acute phase of SCI and observed significant functional recovery over a six-week period compared to control groups.
  • Results indicate that HPMSCs-Exosomes reduce neuron apoptosis, lower glial scar formation, and promote tissue preservation, suggesting a promising therapeutic strategy for enhancing recovery after SCI.
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Background And Objectives: No study has evaluated the efficacy of using preoperative antiseptic dressings in reducing the rate of surgical site infection (SSI) in spine surgery thus far. To investigate the efficacy of the use of preoperative povidone-iodine-impregnated antiseptic dressings in patients undergoing instrumented posterolateral lumbar spinal fusion.

Methods: This was a randomized, nonblinded, active-controlled, parallel-group clinical trial.

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Background: In the severe forms of COVID-19 and many other infectious diseases, the patients develop a cytokine storm syndrome (CSS) where pro-inflammatory cytokines such as IL-6 and TNF-α play a key role in the development of this serious process. Selenium and iron are two important trace minerals, and their metabolism is tightly connected to immune system function. Numerous studies highlight the role of selenium and iron metabolism changes in the procedure of COVID-19 inflammation.

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Background: Patients with glioblastoma multiforme (GBM) and other patients with cancer are at a greater risk of developing severe complications as a result of coronavirus disease 2019 (COVID-19) infection. Therefore, it is crucial to adjust therapeutic approaches to reduce exposure and complications and achieve the most appropriate treatment outcomes.

Objective: Our goal was to help physicians to make decisions based on the latest data in the literature.

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Cerebral gliomatosis (GC) is a rare diffuse infiltrative growth pattern of glioma with nonspecific clinical manifestations like visual impairment that may involve bilateral temporal lobes. Herpes simplex encephalitis (HSE) and limbic encephalitis (LE) can also lead to temporal lobe involvement. Differentiating these entities is necessary for patients with misleading presentations and imaging findings.

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Background: Multimodal perioperative pain management including nonopioid analgesia is a major pillar of enhanced recovery after surgery programs. The aim of this study was to investigate the analgesic efficacy of the preoperative combination of 2 nonopioid drugs, oral pregabalin and intravenous magnesium sulfate, in patients undergoing posterolateral lumbar spinal fusion.

Methods: This 4-arm, randomized, double-blind, placebo-controlled trial included 104 patients randomly allocated to receive: magnesium sulfate and pregabalin (MP), magnesium sulfate and oral placebo (M), 0.

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Background: Despite the abundant literature on the use of selective dorsal rhizotomy (SDR) in spastic cerebral palsy, no investigation has evaluated its use in adult patients with chronic spinal cord injury (SCI)-induced spasticity. The present investigation aimed to evaluate the safety and potential efficacy of SDR in chronic SCI-induced spasticity for the first time.

Methods: In this open-label, single-arm, non-randomized clinical trial, all patients were assigned to the single study intervention arm and underwent SDR.

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Background: The relationship between peroxisome proliferator-activated receptor gamma (PPARγ) expression level and epigenetic modifications occurring in glioblastoma multiforme (GBM) pathogenesis is largely unknown. Herein, we examine the association of PPARγ expression with its promoter and genomic global DNA methylation status, as well as DNA methyltransferases (DNMTs) gene expression in GBM patients.

Methods: We examined the patterns of promoter methylation and PPARγ expression in 26 GBM tissues and 13 adjacent non-tumor tissues by methylation-specific PCR (MSP), real-time PCR, and ELISA, respectively.

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Although Aspergillus meningitis is poorly responsive to current guidelines for treatment, we describe a dramatic response of Aspergillus meningitis in a patient to treatment using a combination of corticosteroids with guideline's suggested antifungal agents. Administration of corticosteroids in patients with Aspergillus meningitis is rarely reported in previous studies.

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Objective: Prior evidence has supported the use of local intraoperative epidural steroids in lumbar discectomy for improvements in postoperative pain and outcomes. However, currently there is a paucity of data regarding the efficacy of local epidural steroids in spinal fusion procedures. The present investigation aimed to evaluate the impact of local epidural administration of triamcinolone acetonide-soaked Gelfoam on postoperative pain and patient-reported outcomes in patients undergoing instrumented posterolateral lumbar spinal fusion.

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Background: Malignant middle cerebral artery infarct (mMCAI) largely contributes to high mortality and physical disability among adults. Surviving individuals may not have proper outcomes and suffer from severe lasting disabilities. Utilization of stem cells and paracrine factor for regenerative purposes is considered as a potential strategy for patients with neurological deficits.

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Objectives: Vitamin D plays a major role in bone metabolism, regulating calcium and phosphorus homeostasis, along with bone growth and remodeling processes. The objective of the present study was to assess the effect of vitamin D deficiency on clinical outcomes following elective spinal fusion surgery by conducting a meta-analysis on the relevant literature.

Methods: Studies included in this analysis involved patients older than 18 years who underwent elective spinal fusion surgery.

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