Publications by authors named "Taheri R"

Background: Traumatic Brain Injury (TBI) is a leading cause of hospitalization and disability in young and middle-aged adults. This study aims to survey the efficacy of oral modafinil, a low-side-effect central nervous system stimulant, in the enhancement of consciousness recovery in moderate to severe TBI patients in the ICUs of a referral trauma center.

Materials And Methods: All ICU patients meeting inclusion criteria between April 2021 and April 2023 were screened.

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Brain swelling after Traumatic Brain Injury (TBI) can elevate intracranial pressure, necessitating Decompressive Craniectomy (DC) as the preferred surgical intervention. This study aimed to analyze a large institutional database to identify clinical characteristics of patients requiring primary DC and their outcomes. We reviewed TBI patients admitted to our center from 2015 to 2021, utilizing a prospectively maintained registry.

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Background: The present study aimed to investigate the effect of pre-admission Opioid Use Disorder (OUD) on in-hospital mortality and 6-month follow-up TBI outcomes.

Design: This study included 2804 patients with TBI admitted to the Intensive Care Unit of Emtiaz (Rajaee) Hospital, a referral trauma center in Shiraz, Iran. Finally, 1087 eligible participants were selected from included patients.

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Traumatic brain injury (TBI) often causes persistent deficits in cognitive flexibility and information updating. Cognitive flexibility refers to the brain's ability to adjust its thinking and behavior in response to changing circumstances, whereas information updating is the process of incorporating new facts into current knowledge. Both cognitive flexibility and information updating are critical components of executive function, and their impairment can have a major influence on a person's capacity to operate independently and adjust to life's problems following a TBI.

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Microfluidics cell encapsulation offers a way to mimic a 3D microenvironment that supports cell growth and proliferation, while also protecting cells from environmental stress. This technique has found extensive applications in tissue engineering and cell therapies. Several studies have demonstrated the advantages of graphene oxide (GO) as an osteogenic inducer; however, the significance of GO on stem cell fate in the single-cell state is still unclear.

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Brucella is a facultative intracellular gram-negative coccobacillus. It is nonsporulating and reproduced in macrophage phagosomes. The use of nanostructures as drug and vaccine carriers has recently received attention due to their ability to control the release profile and protect the drug molecules.

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The present investigation aimed to develop niosomes containing gold nanoparticles (Nio-AuNPs) and to evaluate the combinational effect of Nio-AuNPs and x-ray radiation therapy (XRT) on growth inhibition potential and induction of apoptosis in the A549 cell line. Gold nanoparticles (AuNPs) were synthesized, and niosomes were prepared using the thin-film hydration method. Various techniques were employed to determine their physiochemical characteristics.

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Article Synopsis
  • - The study investigates the factors affecting the long-term success of endoscopic third ventriculostomy (ETV) in pediatric patients with hydrocephalus, focusing on clinical and radiological data from patients under 18 who underwent the procedure between March 2014 and May 2021.
  • - Key findings reveal that 12.2% of patients experienced ETV failure within 6 months, increasing to 22.4% by 1 year, with critical predictors identified as the maximum diameter of the cortical subarachnoid space (CSAS) and the pulsatility index (PI).
  • - The analysis indicates that a smaller CSAS diameter correlates with a higher chance of failure within 6 months, while a lower
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Background: Achieving adequate aesthetics with implants in the anterior sector continues to be a challenge. One of the most studied and currently used techniques is the use of autologous connective tissue grafts to improve the peri-implant soft tissues in this area. Our objective is to analyze whether these techniques have a predictable impact on the tissues and aesthetics; and if it is worth performing them.

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The clinical efficacy of tissue plasminogen activator (tPA) is limited by its lack of specific delivery, requiring large therapeutic doses that increase the risk of intracerebral hemorrhage, bleeding at the surgical site, and patient mortality after angioplasty. To address these limitations, this study aimed to develop a chitosan polysulfate (CsPs)-coated liposomal formulation for the sustained release of tPA. The CsPs-coated liposomes containing tPA (Liposome-tPA/CsPs) were fabricated using the thin-film hydration technique and their properties were compared to tPA-encapsulated nanoliposomes without a coating layer (Liposome-tPA).

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Purpose: Brucellosis, a zoonotic infectious disease, is a worldwide health issue affecting animals and humans. No effective human vaccine and the complications caused by the use of animal vaccines are among the factors that have prevented the eradication of the disease worldwide. However, bio-engineering technologies have paved the way for designing new targeted and highly efficacious vaccines.

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  • - Traumatic brain injury (TBI) is linked to significant physical disabilities, and this study focused on factors that affect recovery in patients discharged with poor outcomes post-TBI.
  • - Data was gathered on TBI patients, showing that 51% of those with severe TBI and 57% of those with mild to moderate TBI achieved better functional status after 6 months.
  • - Key findings indicated that older age, shorter ICU stays, and certain injuries like skull base fractures were associated with improved recovery, suggesting that evaluating discharge outcomes could help identify patients likely to benefit from recovery support.
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Coagulopathy development in traumatic brain injury (TBI) is among the significant complications that can negatively affect the clinical course and outcome of TBI patients. Timely identification of this complication is of utmost importance in the acute clinical setting. We reviewed TBI patients admitted to our trauma center from 2015 to 2021.

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Type 2 diabetes mellitus (T2DM) is an immensely debilitating chronic disease that progressively undermines the well-being of various bodily organs and, indeed, most patients succumb to the disease due to post-T2DM complications. Although there is evidence supporting the activation of the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway by insulin, which is essential in regulating glucose metabolism and insulin resistance, the significance of this pathway in T2DM has only been explored in a few studies. The current review aims to unravel the mechanisms by which different classes of PI3Ks control the metabolism of glucose; and also to discuss the original data obtained from international research laboratories on this topic.

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Article Synopsis
  • Posterior fossa pathologies are difficult to address due to complications from traditional surgical approaches, including CSF leaks and post-operative pain.
  • A new question mark-shaped incision technique offers better exposure and minimizes risks, allowing for a seamless craniotomy and effective dural closure.
  • After using this innovative approach on three patients, there were no adverse events, showcasing its potential to improve recovery and minimize complications compared to traditional methods.
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  • * The study analyzed 28 published cases and included 104 patients, mostly young males, finding that 11.2% experienced unfavorable outcomes and 35.2% had complications, with specific predictors for poor outcomes identified.
  • * Results suggest that immediate medical attention is crucial for ESFs, highlighting a need for more research to improve our understanding and treatment approaches.
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Background: The current convention for treatment of children with myelomeningocele (MMC) is timely surgical intervention combined with long-term follow-up by a multidisciplinary specialized team. This study aims to investigate the outcomes of MMC patients treated at Namazi Hospital.

Methods: All children presenting to Namazi Hospital with myelomeningocele between May 2001 and August 2020 were eligible for this study.

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Background: Selecting an efficient treatment for patients with radiculopathy caused by lumbar disc herniation (LDH) unresponsive to conservative management remains a challenging task under investigation, yielding varying results. This study aims to compare the outcomes of the 2 most prevalent invasive treatments.

Methods: In this retrospective longitudinal study, we enrolled patients with confirmed refractory symptomatic LDH who sought treatment at Valiasr Hospital and underwent either discectomy surgery or epidural steroid injection (ESI) between 2019 and 2022.

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  • Spina bifida is a serious congenital disorder, particularly Myelomeningocele (MMC), and this study evaluates the short-term outcomes of surgical treatments and factors affecting complications and mortality in children.
  • The research focused on 248 children who underwent MMC surgery at Namazi Hospital in Iran, highlighting a median age of 8.5 days at surgery and common complications, such as wound issues.
  • Findings showed that 5.7% of patients died within 30 days post-surgery, with the site of the lesion and age at surgery identified as key factors influencing mortality, suggesting a need for further research on reducing risks.
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  • Intracranial hemorrhage (ICH) is a critical condition that requires quick diagnosis and treatment; a new automated method for calculating ICH volumes aims to enhance accuracy and efficiency in clinical settings.
  • A Python-based algorithm processes CT scans to calculate intracranial blood volume, showing strong validation results compared to manual calculations by neurosurgeons.
  • This automated method demonstrated superior accuracy over the traditional ABC/2 method, making it a promising tool for better clinical decision-making regarding ICH, epidural hematoma (EDH), and subdural hematoma (SDH).
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Nasal Septal Deviation (NSD) is a common sign in otorhinolaryngology that can lead to facial asymmetry. In this case-control observational study, we assessed the role of EMG and NCS in the diagnosis of NSD and its effect on neuromuscular function. Participants were divided into two groups based on paranasal sinus computed tomography scan (PNS CT) results: NSD cases (n = 21) and controls without NSD (n = 13).

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Objectives: Long-term potentiation (LTP) is a kind of synaptic plasticity and has a key role in learning and memory. Endocannabinoids and orexins are the endogenous systems that can modulate synaptic plasticity. Given that new studies have shown an interaction between cannabinoid and orexin systems in the brain, we decided to examine this interaction between the two systems on LTP induction in rat's hippocampus.

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In patients affected by traumatic brain injury (TBI), hypofibrinogenemia within the initial hours of trauma can be expected due to vascular and inflammatory changes. In this study, we aimed to evaluate the effect of hypofibrinogenemia on the in-hospital mortality and 6-month functional outcomes of TBI patients, admitted to Rajaee Hospital, a referral trauma center in Shiraz, Iran. This study included all TBI patients admitted to our center who had no prior history of coagulopathy or any systemic disease, were alive on arrival, and had not received any blood product before admission.

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In this study, cellulose nanocrystals (CNCs) were synthesized from celery stalks to be used as the platform for quercetin delivery. Additionally, CNCs and CNCs-quercetin were characterized using the results of scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and zeta potential, while their interactions with human holo-transferrin (HTF) were also investigated. We examined their interaction under physiological conditions through the exertion of fluorescence, resonance light scattering, synchronized fluorescence spectroscopy, circular dichroism, three-dimensional fluorescence spectroscopy, and fluorescence resonance energy transfer techniques.

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