Publications by authors named "Alireza Homayouni"

Purpose: Although investigations are limited, adjunctive aerosolized antibiotics have been advised in the setting of gram-negative ventilator-associated pneumonia (VAP). This study aimed to compare the efficiency of inhaled colistin with inhaled fosfomycin/tobramycin in treating VAP due to extensively drug-resistant (XDR) Acinetobacter baumannii.

Methods: This single center open-label randomized controlled trial included 60 patients who developed XDR A.

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Background: COVID-19 has significantly disrupted the routines of school sports for adolescent athletes, which can affect their usual eating behaviors and body image. Specific pressures of individual sports (which tend to emphasize "leanness" as a means to improving performance), versus team sports (which tend to not require "leanness" for an athlete to be competitive), may further increase the risk of disordered eating (DE), eating disorders (ED), and distorted body image. An additional factor to consider is the gender of the athletes, with participation in "lean" sports associated with increased DE and body dissatisfaction for male, but not female, athletes.

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Background: The following study investigates the correlational relationship between behavioral activation/inhibition systems, lifestyle and mental disorders in Adolescent Athletes during the Covid-19 pandemic.

Methods: Research methods are descriptive and correlational; "Of the eligible participants who were available during a COVID-19 quarantine period from June through August 2020 (N = 180), the Krejcie and Morgan Sampling Method was used to simplify the process of determining the sample size for a finite population [46], resulting in a calculation of N = 130 sample participants. to respond to Carver & White's Behavioral activation/inhibition systems Scale (BIS/BAS), Mille's Lifestyle Questionnaire and Goldberg & Williams's General Health Questionnaire (GHQ-12).

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Nowadays, the covid 19 pandemics are challenging all students. The present study aimed to investigate whether motor skill development affects students' psychological and social traits during the covid 19 pandemics. The present study's population consisted of all students aged 9-17 years in the three grades of the elementary, middle, and high school in Mazandaran province in the academic year 2020-2021, which corresponded to approximately 534 thousand students.

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Diabetic foot ulcer (DFU) and pressure ulcer (PU) both are common types of ulcers worldwide. The wound healing effect of leaves has been shown in a few animal studies. This study aimed to evaluate the clinical efficacy of hydroalcoholic extract on DFU and PU healing.

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Background: Bunge fruits have been utilized in traditional medicine to control diabetes mellitus (DM). However, no clinical survey has been done in this regard. This study was conducted to clinically evaluate the effects of fruit extract of this plant in improving glycemic control indices in patients with type 2 DM (T2DM).

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Curcumin is a natural active constituent of Curcuma longa from Zingiberaceae family that shows many different pharmacological effects such as anticancer, antioxidant, anti-inflammatory, antimicrobial and antiviral effect. However, its bioavailability is profoundly limited by its poor water solubility. In this study antisolvent crystallization followed by freeze drying was used for the preparation of curcumin nanoparticles.

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Dissolution enhancement of poorly water soluble drugs is a major challenge in pharmaceutical industry. The aim of this study is to fabricate curcumin nanoparticles by antisolvent crystallization in the presence of PVP-K30 or HPMC with various concentrations as a stabilizer. The effect of high pressure homogenization on properties of curcumin particles is also investigated in this study.

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Celecoxib is a COX II inhibitor NSAID which is used for joint pains, rheumatoid arthritis and osteoarthritis, however due to its poor water solubility it shows very low oral bioavailability. Using solid dispersion formulations is one of the most promising strategies to increase solubility of poorly water soluble drugs. The purpose of this study is dissolution enhancement of celecoxib by preparation of solid dispersions via spray drying technique using PVP and Isomalt as hydrophilic carriers.

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Curcumin with a vast number of pharmacological activities is a poorly water soluble drug which its oral bioavailability is profoundly limited by its dissolution or solubility in GI tract. Curcumin could be a good anticancer drug if its solubility could be increased. Therefore, the aim of the present study was to increase the dissolution rate of curcumin by employing antisolvent crystallization technique and to investigate the effect of polyvinyl pyrrolidone K30 (PVP) as colloidal particles in crystallization medium on resultant particles.

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Background: Meloxicam (MLX) is classified as NSAID that is used for the treatment of rheumatoid arthritis and osteoarthritis. Poor water solubility of MLX leads to its slow oral absorption and slow onset. Preparation of solid dispersion (SD) could improve the water solubility of poorly water soluble drugs.

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The present study deals with characterization of dispersions of a poorly water-soluble drug, celecoxib (CLX) in polyvinyl caprolactame-polyvinyl acetate-polyethylene glycol graft copolymer (Soluplus(®) (SOL)) prepared by different techniques. Dispersions of CLX in SOL at different ratios (2:1, 1:1, 1:2, 1:4 and 1:6) were prepared by spray drying, conventional solvent evaporation and melting methods. The solid states of samples were characterized using particle size measurements, optical and scanning electron microscopy, XRPD, DSC and FT-IR.

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Poor solubility and dissolution of hydrophobic drugs have become a major challenge in pharmaceutical development. Drug nanoparticles have been widely accepted to overcome this problem. The aim of this study was to manufacture celecoxib nanoparticles using antisolvent precipitation and high pressure homogenization techniques in the presence of varying concentrations of soluplus(®) as a hydrophilic stabilizer.

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Objectives: Solid dispersion formulation is the most promising strategy to improve oral bioavailability of poorly water soluble drugs. The aim of this study was to compare the effect of polyvinylpyrrolidone K30 (PVP) and poloxamer-188 (PLX) as carrier in solid dispersion formulations of celecoxib (CLX).

Materials And Methods: Solid dispersions of CLX:PVP or CLX:PLX were prepared at different ratios (2:1, 1:1, 1:2, 1:4, 1:6) by solvent evaporation and melting methods, respectively.

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One of the major challenges in pharmaceutical development is the poor dissolution performance of drugs. Celecoxib (CLX) is a poorly water soluble drug with its bioavailability being limited by its poor dissolution. In this study several particle engineering methods were employed on CLX using various ratios of CLX:PVP-K30.

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Objective(s): This study was performed aiming to investigate the effect of particle engineering via spray drying of hydroalcoholic solution on solid states and physico-mechanical properties of acetaminophen.

Materials And Methods: Spray drying of hydroalcoholic solution (25% v/v ethanol/water) of acetaminophen (5% w/v) in the presence of small amounts of polyninylpyrrolidone K30 (PVP) (0, 1.25, 2.

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Objectives: The purpose of the present study was to use the solid dispersion (SD) technique to improve the dissolution rates of indomethacin (IMC).

Materials And Methods: IMC solid dispersions in PVP K30 and isomalt (GALEN IQ 990) were prepared using the solvent evaporation technique and a hot melt method in weight ratios of 2, 10 and 30% (IMC:PVP). Solid dispersions and physical mixtures were characterized by X-ray powder diffraction (XRPD), differential scanning calorimetry (DSC) and dissolution test.

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