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Showing 25 results for Drug

Seyed Ali Bazghandi , Somayeh Safarirad, Mohsen Arzanlou, Hadi Peeri-Dogaheh , Hossein Ali-Mohammadi , Farzad Khademi,
Volume 20, Issue 2 (7-2020)
Abstract

 
Background & objectives: Bacterial antibiotic resistance is becoming a global health crisis. The aim of this descriptive, cross-sectional study was to investigate the prevalence of multidrug-resistant Pseudomonas aeruginosa strains in Ardabil.
Methods: During 9 months, between July 2019 and March 2020, 50 strains of Pseudomonas aeruginosa were collected from different clinical specimens in four hospitals of Ardabil and the prevalence of MDR, XDR and PDR strains of Pseudomonas aeruginosa were evaluated. Antibiotic susceptibility testing was assessed using the disk diffusion method.
Results: In the present study, the prevalence of MDR, XDR and PDR strains of Pseudomonas aeruginosa were 52%, 40% and 14%, respectively.
Conclusion: Due to high prevalence of multidrug-resistant strains of Pseudomonas aeruginosa in Ardabil, continuous monitoring of the antibiotic resistance trend in clinical isolates in order to select the best medication is necessary.
Sana Ahdeno, Nima Razaghi-Asl, Behnam Mohammadi-Ghalehbin,
Volume 20, Issue 3 (10-2020)
Abstract

 
Background & objectives: Drug-repurposing is the study on application of existing drugs for treatment or control of other diseases. Major advantage of the technique relies on a nominated drug molecule that is applied for pharmacodynamics optimization due to lack of serious pharmacokinetics challenges. According to the importance of the subject, a present contribution has been dedicated to the in-silico analysis of a few drug classes with the aim of achieving potential anti-leishmanial pharmacophores.   
Methods: 3D structure of protein targets within leishmania parasite were retrieved from Brookhaven Protein Data Bank (PDB) on the basis of literature reports to evaluate the related complexes with drugs via molecular docking. Qualitative and quantitative analysis of drug-target interaction patterns in docked complexes offered drugs with higher binding affinities toward targets and finally structural patterns or hypothetical anti-leishmanial pharmacophores were proposed with regard to the top-ranked pharmaceutical compounds.
Results: Highest free binding energy could be estimated for Nateglinide in binding to farnesyl diphosphate synthase (ΔGb -13.30 kcal/mol). Among steroids, Norgestrel synthase (ΔGb -9.48 kcal/mol) and Testosterone synthase (ΔGb -8.05 kcal/mol) exhibited higher enzyme binding affinities and Arg82 was a key residue in making hydrogen bonds. Within fused tricyclic structural patterns, mirtazapine exhibited highest binding affinity to deoxy uridine triphosphate (ΔGb -8.64 kcal/mol). In Carbamazepine, amide substituent of the central ring facilitated the formation of two effective hydrogen bonds with Gln21 and Asn25 in deoxy uridine triphosphate. 
Conclusion: On the basis of obtained results for steroids and fused tricyclic scaffolds, it will be possible to design molecules that can inhibit several pathogenic targets simultaneously.
Leili Aghebati-Maleki, Ali Aghebati-Maleki, Ali Fotouhi, Sanam Nami,
Volume 21, Issue 3 (10-2021)
Abstract

Candida albicans is the most common cause of invasive candidiasis, but in recent years the incidence of infections caused by other species such as Candida Kruzei, Candida glabrata, Candida tropicalis, Candida parapsilosis and Candida lusitania has increased. In the last decade, the treatment methods for invasive candidiasis have changed completely, and a successful treatment depends on the timely start of treatment, the selection of an effective drug, and the lack of resistance of the fungus to that particular drug. On the other hand, the widespread use of immunosuppressive drugs as well as organ transplants has all caused widespread problems in the treatment of invasive candidiasis. Together, these observations highlight a rationale for the immediate development of new immunotherapy methods to enhance antifungal therapy in immunocompromised hosts. The past decade has seen great advances in our understanding of fungal immunobiology, leading to a number of new molecular and cellular immunotherapy methods for invasive fungal infections. Therefore, the aim of this study was to review the common and new antifungal drugs in the treatment of invasive candidiasis and to discuss the role of immunotherapy in better prevention and control of the disease.
Sadaf Khaki, Nastaran Hadizadeh, Leila Rezaie Shirmard ,
Volume 22, Issue 4 (1-2023)
Abstract

Background & objectives: Due to the existence of various issues and limitations associated with traditional buccal drug delivery systems such as the disability to consume food whilst using topical drugs in the mouth cavity, unpredictable drug release profile, undesirable taste, low patient adherence to therapy, and accelerated drug removal with saliva, these conventional methods are now rapidly becoming replaced with oral thin films as more precise and novel oral drug delivery platforms. The current study aims to discuss the design and characterization of betamethasone-loaded oral thin films with the aim of improved drug delivery in mouth cavity diseases.
Methods: In this study, oral thin films with and without betamethasone were fabricated through the solvent casting method as a common, fast, and affordable technique prior to being evaluated for different physiochemical characteristics including weight, width, surface pH, disintegration period in vitro conditions, and swelling rates as well as drug release profiles at different intervals.
Results: Obtained oral films were demonstrated to possess adequate homogeneity, flexibility, and mechanical resistance. Accordingly, the average surface pH for films without and with betamethasone was equal to 6.75 and 6.66, respectively, which are in notable compatibility with the neutral pH of the oral cavity. Betamethasone-loaded films’ disintegration duration appeared to be superior to that of films without betamethasone and was in close correlation with their higher swelling rates. Further experiments revealed 25-30% drug release in the initial 20 minutes, followed by more than 90% betamethasone release in 360 minutes in a sustained manner.
Conclusion: These results are indicative of betamethasone oral films’ satisfactory physiochemical properties and potential applicability as a sufficient oral drug delivery platform in mouth cavity diseases such as oral lichen planus or recurrent mouth sores. By sticking to the mouth mucosa, these films can significantly reduce drug removal with saliva and thus ameliorate sufficient delivery of therapeutic agents to specific mouth lesions. Moreover, they can alleviate some of the issues and limitations of traditional topical oral drug delivery and improve treatment or control of disease symptoms.
 
Mehrnoosh Kaviani, Mouhamad Hassan Pourrashid, Saeedeh Galledar,
Volume 24, Issue 2 (7-2024)
Abstract

Background: Antibiotics are commonly prescribed drugs by dentists. Irrational use of these drugs can lead to unwanted drug side effects, such as drug resistance in addition to unnecessary costs. This research was conducted to determine the antibiotic prescription pattern by dentists of Ardabil City based on the international ATC/DDD system.
Methods: In this cross-sectional descriptive study, 250 prescriptions of patients referred to dentists in Ardabil during the second quarter of 2021 were examined. The information related to prescribed drugs includes: drug dose, frequency of drug use, number of drugs that were collected and completed in the dental offices and clinics of Ardabil city, and finally after converting the data into a certain daily dose based on the ATC-DDD system, acquired data was analyzed using One-way analysis of variance and Tukey's post hoc tests and SPSS version 21 software, the significance level was considered less than 0.05.
Results: Out of the total 250 reviewed prescriptions, 207 prescriptions (82.8%) contained antibiotics. Metronidazole (73.4%) and amoxicillin (70.5%), were the most antibiotic drugs prescribed by Ardabil dentists respectively. In all prescribed drugs, the DDD value was higher than the standard DDD value. There was no significant difference between men and women in terms of the number of copies (p<0.05). The highest frequency was related to the prescription of three drugs and the lowest frequency was related to the prescription of six drugs. In terms of pharmaceutical forms, 201 prescriptions (97.1%) were only oral drugs and 6 (2.9%) were both oral and injectable
Conclusion: The results showed that the amount of antibiotics prescribed in prescriptions was higher than the standard DDD and the number of drugs prescribed in prescriptions was also higher than the figure recommended by the World Health Organization.


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مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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