Publications by authors named "Ahmadzakaria Arjmand"

Nonalcoholic fatty liver disease (NAFLD) is one of the main causes of chronic liver disorders following liver transplantation. The prorenin receptor (PRR) plays a role in glucose and lipid metabolism, and the hepatic dysregulation of PRR is associated with the upregulation of several molecular pathways, such as the mammalian target of rapamycin (mTOR) and Peroxisome proliferator-activated receptor (PPAR) that promotes hepatic lipogenesis and leads to lipid accumulation in hepatocytes by upregulation of lipogenic genes. PRR inhibition leads to a reduction in the hepatic expression of sortilin-1 and low-density lipoprotein receptor (LDLR) levels and down-regulation of pyruvate dehydrogenase (PDH) and acetyl-CoA carboxylase (ACC) and reduces fatty acids synthesis in hepatocytes.

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Purpose: Determine the rate of incidence, risk factors, and management for developing venous thromboembolism (VTE) in patients undergoing radiofrequency ablation (RFA) and ultrasound-guided foam sclerotherapy (UGFS) for varicose veins.

Methods: All charts of patients undergoing venous ablation from 2016 to 2023 were reviewed at a rural vein treatment clinic. The incidence of VTE was noted and a chart review was completed to identify risk factors for VTE, EHIT score, EFIT score, and management.

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This review, in light of the Socio-Cultural Erosion Theory, addresses the alarming deterioration in mental health among Iranian youth. According to this theory, rapid socio-cultural changes, economic instability, and pervasive influences of digital media create a drift between traditional values and modern expectations that are detrimental to mental health. The major risk factors identified in order of significance were, in descending order, economic hardship, academic stress, cultural pressures, and digital exposure.

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Background: To evaluate the correlation of macular vessel density (VD) and foveal avascular zone (FAZ) parameters measured on optical coherence tomography angiography (OCTA) with systemic arterial stiffness using pulse wave velocity (PWV), pulse wave analysis, arterial age, and central blood pressure (CBP) measurements in healthy subjects.

Methods: In a comparative, cross-sectional, observational study, healthy adults who participated in the PERSIAN Cohort study at Mashhad University of Medical Sciences were included in this study. The study involved using a spectral domain OCTA device to obtain 3 × 3 and 6 × 6 mm scans of the macular superficial capillary plexus (SCP) VD, deep capillary plexus (DCP) VD, and FAZ vascular analysis.

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Ketamine (KET) is recognized as rapid-acting antidepressant, but its mechanisms of action remain elusive. Considering the role of endocannabinoids (eCB) in stress and depression, we investigated if S-KET antidepressant effects involve the regulation of the eCB system using an established rat model of depression based on selective breeding: the Flinders Sensitive Line (FSL) and their controls, the Flinders Resistant Line (FRL). S-KET (15 mg/kg) effects were assessed in rats exposed to the open field and forced swimming test (FST), followed by analysis of the eCB signaling in the rat prefrontal cortex (PFC), a brain region involved in depression neurobiology.

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Objective: Our goal was to evaluate the efficacy of OpenAI's ChatGPT-4.0 large language model (LLM) in translating technical ophthalmology terminology into more comprehensible language for allied health care professionals and compare it with other LLMs.

Design: Observational cross-sectional study.

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Identifying optimal treatment approaches for schizophrenia is challenging due to varying symptomatology and treatment responses. Artificial intelligence (AI) shows promise in predicting outcomes, prompting this systematic review and meta-analysis to evaluate various AI models' predictive utilities in schizophrenia treatment. A systematic search was conducted, and the risk of bias was evaluated.

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  • This study explored how graphene oxide (GO) and magnetic GO (MGO) nanosheets perform in anaerobic digestion (AD) of municipal sludge over 230 days, focusing on their impact under different organic loading rates (OLRs).
  • At lower OLRs (2.6 and 3.4 g COD/L/day), GO and MGO did not affect AD performance, but at a higher OLR (5.2 g COD/L/day), they maintained stable biogas yields when control systems failed.
  • The enhancements were linked to improved conductivity and microbial interactions, and the study validated biochemical methane potential (BMP) assays as effective forecasting tools for AD outcomes, highlighting the benefits of GO/MGO for improving AD system stability
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  • Platinum-based chemotherapies are crucial for treating various cancers but can lead to significant kidney damage, complicating treatment.
  • Doctors may adjust chemo plans and prescribe medications to protect the kidneys, while new imaging and biomarkers help detect kidney issues early.
  • Collaboration among oncologists, nephrologists, and pharmacists is essential, but more research is needed for tailored treatments and to minimize kidney injury from these drugs.
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  • - Glioblastoma, the most common and aggressive brain cancer, has a very poor survival prognosis, making it critical for detailed molecular studies to improve understanding and treatment.
  • - This study uses bioinformatics tools to analyze gene expression in normal brain cells compared to glioblastoma cells, identifying a set of differentially expressed genes (DEGs) including TP53, EGFR, FN1, JUN, and CDC42 that could serve as biomarkers.
  • - The identified genes are implicated in the stability of protein-protein interaction networks and may be promising targets for drug development in treating glioblastoma, pending further validation.
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Introduction: Metformin is an essential medicine that is most widely prescribed frontline for the treatment of Type 2 diabetes (T2D). Metformin upgraded glycemic control in T2D patients without hypoglycemic effects in patients. This assessment aims to understand molecular mechanism mechanisms in non-responder patients to metformin.

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Purpose: To describe the multimodal imaging findings of a rare case of multiple evanescent white dot syndrome (MEWDS) associated with COVID-19.

Methods: A case report was analyzed and described alongside COVID-19 associated MEWDS cases identified in the current literature.

Results: A healthy 20-year-old man was evaluated after a three-day history of blurry vision occurring two months after COVID-19 infection.

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Background: Orthopedic surgeries often involve the insertion of bone screws for various fixation systems. The risk of postoperative screw loosening is usually assessed through experimental or finite element (FE) evaluations of the screw pull-out strength. FE simulations are based on either personalized complex but accurate heterogeneous modeling or non-personalized simple but relatively less accurate homogeneous modeling.

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This study assessed the effect of a small-torque generating passive back-support exoskeleton during a low demanding occupational task, namely a repetitive lifting/lowering of an empty crate between the knee and shoulder heights. A comprehensive set of outcomes was considered, ranging from the measured trunk muscle activation and trunk movement to the estimated muscle group forces/coordination, spine loading and spine stability, using a dynamic subject-specific EMG-assisted musculoskeletal model. The exoskeleton decreased back muscle activation and corresponding muscle forces in the lowering phase and reduced spinal loading at larger trunk flexion angles (decreased peak compression and shear forces by ∼ 15%).

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The retina is a light-sensitive tissue, and intensive light exposure leads to light-induced retinal damage. It is pointed out that photoreceptor damage is responsible for the decrease in retina function. The aim of this study was to detect the main genes and biological terms which are involved in retinal response to intensive light exposure.

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Background: Both coronary artery calcification (CAC) and atrial fibrillation (AF) are associated with common risk factors, such as age, hypertension, diabetes, and dyslipidemia. Investigating their association may provide insights into shared pathophysiological mechanisms and overlapping risk profiles.

Methods: A systematically search was performed covering various data bases including PubMed, Scopus, ISI, and Google Scholar from January 2000 until December 2023 for English-published articles.

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Intraoperative misplacement of vertebral pedicle screws is prevalent. While a pedicle screw misplacement of up to 4 mm is often considered safe by clinical standards, this may reduce the pull-out strength thereby increasing the risk of postoperative screw loosening. This study aimed to compare the pull-out strength of ideally-placed and misplaced pedicle screws via personalized finite element (FE) modeling simulations.

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From a neuroscientific point of view, one of the unique archetypes of substance use disorders is its road to relapse, in which the reward system plays a crucial role. Studies on the neurobiology of substance use disorders have highlighted the central role of a protein belonging to the Fos family of transcription factors, ΔFosB. Relying on the roles ΔFosB plays in the pathophysiology of substance use disorders, we endeavour to present some evidence demonstrating that -acetylcysteine, a low-cost and well-tolerated over-the-counter medicine, may influence the downstream pathway of ΔFosB, thereby serving as a treatment strategy to mitigate the risk of relapse in cases of substance use.

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  • The text suggests using fuzzy logic and Karl Popper's idea of verisimilitude to better understand the complexity of psychiatric disorders, which don't fit into simple true/false categories.
  • It highlights the need to accept imprecision and gather comprehensive data to gain a deeper insight into these disorders, emphasizing that the ability to disprove ideas is essential for scientific development.
  • The authors advocate for a personalized approach to psychiatric classification and stress the importance of ongoing data collection to support innovations like artificial intelligence in updating current psychiatric practices.
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  • Researchers are focused on developing highly porous materials like cryogels for electromagnetic interference (EMI) shielding that primarily absorb, not reflect, electromagnetic waves.
  • They created various graphene oxide (GO)-based cryogels using different fabrication methods and treated them to improve electrical conductivity.
  • The study found distinct behaviors in shielding effectiveness: chemically-crosslinked cryogels mostly reflected EM waves while worm-like cryogels absorbed them better due to their unique porous structures, providing insights on how to design improved EMI shields.
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  • * A 49-year-old man with prediabetes and high cholesterol experienced vision decline and was diagnosed with the condition after other treatments failed.
  • * Treatment involved laser photocoagulation targeting the macroaneurysm, leading to complete resolution of macular edema and significant improvement in his vision, emphasizing the role of advanced imaging for diagnosis.
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To describe the multimodal imaging findings associated with benign yellow dot maculopathy. A case report was analyzed. A healthy 42-year-old White man was evaluated after several weeks of photopsias and an inferior retinal tear in the right eye.

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Aim: This study aimed to introduce a biomarker panel to detect pancreatic ductal adenocarcinoma (PDAC) in the early stage, and also differentiate of stages from each other.

Background: PDAC is a lethal cancer with poor prognosis and overall survival.

Methods: Gene expression profiles of PDAC patients were extracted from the Gene Expression Omnibus (GEO) database.

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This study evaluated anaerobic co-digestion as a promising strategy for managing organic-contaminated waste streams generated from nanomaterial synthesis. The novel approach enabled precise quantification of organic content, efficient biomethane recovery, and a sustainable redirection of ethanol-contaminated graphene oxide (GO) dispersions. The proposed method achieved high accuracy (93-97%) in detecting organic content in ethanol-contaminated GO dispersions, significantly outperforming the conventional total chemical oxygen demand (tCOD) method, which only reached 75-77% accuracy.

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