Publications by authors named "Mohammad Ali Kiani"

Article Synopsis
  • - The study addresses the environmental and health risks of organophosphorus pesticides by developing a novel biosensing platform using nanocellulose papers and a specific enzyme for real-time monitoring.
  • - The smart sensor, called nano-PAD, is designed to detect and quantify harmful substances like paraoxon, correlating enzyme activity with pollutant concentration, using advanced printing techniques.
  • - Integrated with a smartphone app and a miniaturized reader, this cost-effective biosensing method is aimed at improving environmental monitoring in settings where traditional tools are not available, ensuring timely and accurate data collection.
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Despite substantial progress in the diagnosis of jaundice/hyperbilirubinemia as the most common disease and cause of hospitalization of newborns, on the eve of Industry/Healthcare 5.0, the development of accurate and reliable wearable diagnostic sensors for noninvasive smart monitoring of bilirubin (BIL) is still in high demand. Aiming to fabricate a smart wearable sensor for early diagnosis of neonatal jaundice and its therapeutic monitoring, we here report a fluorescent dermal nanotattoo that further coupled with an IoT-integrated wearable optoelectronic reader for minimally invasive, continuous, and real-time monitoring of BIL in interstitial fluid.

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Colorectal cancer (CRC) is the most common type of newly diagnosed cancer. Metastatic spread and multifactorial chemoresistance have limited the benefits of current therapies. Hence, it is imperative to identify new therapeutic agents to increase treatment efficacy.

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Non-alcoholic fatty liver disease (NAFLD) comprises a range of chronic liver diseases that result from the accumulation of excess triglycerides in the liver, and which, in its early phases, is categorized NAFLD, or hepato-steatosis with pure fatty liver. The mortality rate of non-alcoholic steatohepatitis (NASH) is more than NAFLD; therefore, diagnosing the disease in its early stages may decrease liver damage and increase the survival rate. In the current study, we screened the gene expression data of NAFLD patients and control samples from the public dataset GEO to detect DEGs.

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Gastrointestinal (GI) cancers are an important health problem globally. Natriuretic peptides are hormones that have a crucial role in human physiology. There are a variety of treatments for GI cancer, but conventional therapies have side effects and low efficacy.

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Notwithstanding the substantial progress in optical wearable sensing devices, developing wearable optical sensors for simultaneous, real-time, and continuous monitoring of multiple biomarkers is still an important, yet unmet, demand. Aiming to address this need, we introduced for the first time a smart wearable optical sensor (SWOS) platform combining a multiplexed sweat sensor sticker with its IoT-enabled readout module. We employed our SWOS system for on-body continuous, real-time, and simultaneous fluorimetric monitoring of sweat volume (physical parameter) and pH (chemical marker).

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Colorectal cancer (CRC) is a common cancer associated with poor outcomes, underscoring a need for the identification of novel prognostic and therapeutic targets to improve outcomes. This study aimed to identify genetic variants and differentially expressed genes (DEGs) using genome-wide DNA and RNA sequencing followed by validation in a large cohort of patients with CRC. Whole genome and gene expression profiling were used to identify DEGs and genetic alterations in 146 patients with CRC.

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There is a complex interaction between pro-tumoural and anti-tumoural networks in the tumour microenvironment (TME). Throughout tumourigenesis, communication between malignant cells and various cells of the TME contributes to metabolic reprogramming. Tumour Dysregulation of metabolic pathways offer an evolutional advantage in the TME and enhance the tumour progression, invasiveness, and metastasis.

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Cytochrome P450 (CYP450) enzyme has been shown to be expressed in colorectal cancer (CRC) and its dysregulation is linked to tumor progression and a poor prognosis. Here we investigated the therapeutic potential of targeting CYP450 using lopinavir/ritonavir in CRC. The integrative systems biology method and RNAseq were utilized to investigate the differential levels of genes associated with patients with colorectal cancer.

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Colorectal cancer (CRC) is the third most common cause of cancer-related deaths. The five-year relative survival rate for CRC is estimated to be approximately 90% for patients diagnosed with early stages and 14% for those diagnosed at an advanced stages of disease, respectively. Hence, the development of accurate prognostic markers is required.

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Alcohol-associated liver disease (ALD) comprises a spectrum of liver diseases that include: steatosis to alcohol-associated hepatitis, cirrhosis, and ultimately hepatocellular carcinoma. The pathophysiology and potential underlying mechanisms for alcohol-associated liver disease are unclear. Moreover, the treatment of ALD remains a challenge.

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Interest in designing and manufacturing glucose sensors based on metal oxide-modified microelectrodes is growing and leading to the increased research efforts to develop continuous glucose measurements. A non-enzymatic glucose sensor based on an ultra-microelectrode is presented. A carbon fiber microelectrode electrodeposited by nickel nanoparticles (NiCFME) and activated as a nonenzymatic glucose sensor.

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A novel carbon fiber microsensor (CFMS) with the capability of being inserted in the cochlear implant structure is introduced for in situ measurement of corticosteroid concentration. The microsensor structure is composed of a carbon microfiber, an Ag wire, and a Pt wire acting respectively as a working electrode, a reference electrode, and a counter electrode. In addition, a silicone septum is used for isolation purposes in place of the epoxy resin.

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Given the importance of developing easy-to-use, disposable, affordable, and portable hybrid opto-electrochemical sensing devices, for the first time, we have developed a nanopaper-based screen-printed electrode (SPE) by taking advantage of the high optical transparency, affordability, biocompatibility, printability, flexibility, and other unrivaled physicochemical properties of bacterial cellulose (BC) nanopaper in screen printing technology. To fabricate the BC-SPE platform, a screen-printed three-electrode system was transferred onto the dried film of a pre-printed BC nanopaper-based substrate. Because of the optical transparency of the BC nanopaper, the fabricated BC-SPE platform can be used as a hybrid sensing platform for simultaneous optical and electrochemical (bio)sensing applications.

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We report on a combined experimental and theoretical study concerning the electrochemical behavior of the dexamethasone (DEX) on a graphene modified glassy carbon electrode (GCE). A good agreement between experiments and density functional theory (DFT)-based calculations is observed for the DEX reduction. The electrochemical behavior of the DEX was investigated on the surface of a glassy carbon electrode (GCE) modified with different type of graphenes, including graphene quantum dot (GQD), graphene oxide (GO), electrochemically synthesized graphene (EG), graphene synthesized by the Hummer method (HG) and graphene nanoplate (GNP) using voltammetric techniques (CV, DPV and SWV).

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Electrode materials with high surface area, tailored pore size, and efficient capability for ion insertion and enhanced transport of electrons and ions are needed for advanced supercapacitors. In the present study, a mixed metal-organic framework (MOF) (cobalt- and manganese-based MOF) was synthesized through a simple one-pot solvothermal method and employed as the electrode material for the supercapacitor. Notably, a Co-Mn MOF electrode displayed a large surface area and excellent cycling stability (over 95% capacitance retention after 1500 cycles).

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Background: The leadership of an organization requires specific features to adapt to changes and to survive and grow in new environments, and emotional intelligence is one of the most important attributes that can help leaders and managers respond to these changes.

Objective: This study aimed to determine the relationship between emotional intelligence with administrators' performance at Mashhad University of Medical Sciences, Mashhad, Iran.

Methods: This cross-sectional study was conducted on 100 basic and middle managers of Mashhad University of Medical Sciences, Mashhad, Iran who were selected by census method in 2016.

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Background: Gastrointestinal (GI) bleeding, which has several clinical manifestation and origins, is known as one of the most life-threatening events in children. Several etiologies have been suggested for GI bleeding.

Objective: To determine the most important causes of GI bleeding in children referred to Ghaem Hospital and Dr.

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Background/aims: Vitamin D deficiency has become endemic globally and its etiology is complex. Few studies have investigated the determinants of serum 25-hydroxy vitamin D (25-OH D). The aim of this study was to investigate the association between lifestyle patterns, liver functional tests (LFTs), and the presence of irritable bowel syndrome (IBS) with serum 25-OH D in apparently healthy girls.

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Background And Aim: Gentle music has relaxing and pain reducing effects. In this study, the effect of music on patients' vital signs and pain was investigated before and after endoscopy.

Methods: This clinical trial study was conducted on 100 children from seven to fourteen years of age in Gha'em Hospital, Mashhad in 2015.

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Introduction: One of the leading causes of damage to the gastrointestinal tract in children is caustic ingestion which is sometimes life-threatening. The most reliable way to study the severity and extent of damage is endoscopy, which can be harmless in terms of time and technique. The aim of this study was to investigate, evaluate and compare clinical findings and endoscopic results of caustic ingestion.

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Introduction: To supply quality services and healthcare, it is evident that medical ethics and patients' rights, while providing medical and healthcare services need to be observed. This study was conducted to evaluate observance of the Patients' Rights Charter among medical staff of educational hospitals affiliated to Mashhad University of Medical Sciences.

Methods: This cross-sectional study was conducted in four educational hospitals in Mashhad on eighty physicians, nurses, nurse aids and medical students.

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Background And Objective: Asthma is a growing problem worldwide. Acute exacerbations impose considerable morbidity, mortality, and increased cost. Viral respiratory infections are the most common cause (80-85%) of pediatric asthma exacerbations and admissions to the hospital.

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Demand for high-performance energy storage materials has motivated research activities to develop nano-engineered composites that benefit from both high-rate and high-capacitance materials. Herein, NiMnO3 (NMO) nanoparticles have been synthesized through a facile co-precipitation method. As-prepared NMO samples are then employed for the synthesis of nano-composites with graphite (Gr) and reduced graphene oxide (RGO).

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Introduction: Food allergy is an increasing problem worldwide, but the foods responsible for food allergy are not the same in different countries, probably because of the role of genetic, cultural, and nutritional factors. The aim of this study was to determine the common food allergens in pediatric patients with different presentation of food allergy.

Methods: In this cross-sectional study, all of the patients were referred to pediatric allergy clinics affiliated with Mashhad University of Medical Sciences from September 2012 to August 2014.

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