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Showing 42 results for Tem
Ramin Abiri, Samira Ghasemi, Nastaran Sharei, Masumeh Shahbazi, Seyed Ahmad Emami, Mahdi Mojarrab,
Volume 24, Issue 1 (4-2024)
Abstract
Background: Nosocomial infections are considered as the important parts of the treatment challenges in hospitals. The genus Artemisia is widely distributed in Iran. Their species produce antibacterial, antiviral, and antifungal compounds belonging to different groups including phenols, terpenoids, sterols and polyacetylenes. The purpose of the present study is to investigate the in vitro effects of different hydroethanolic extracts of Artemisia species against bacterial strains in nosocomial infection.
Methods: 12 different extracts, including 50% and 70% hydroethanolic extracts were prepared from the aerial parts of Artemisia ciniformis, A. turanica, A. kopetdaghensis, A. khorasanica, A. vulgaris, and A. sieberi. The winterization of the extracts produced corresponding defatted extracts. The minimum inhibitory concentration (MIC) values of the extracts against the bacterial strains Staphylococcus aureus, Streptococcus pyogenes, Acinetobacter sp., Pseudomonas aeruginosa, Enterococcus faecalis, Staphylococus epidermidis, Micrococcus luteus, Klebsiella pneumoniae and Escherichia coli were measured using the microdilution broth method. Total phenolic contents were determined by the Folin-Ciocalteu method.
Results: Among the extracts analyzed in this experiment, the lowest MIC value was observed for the 50% hydroethanolic extract of A. turanica (0.25 mg/ml) against S. epidermidis. The largest range of bacterial sensitivity (6 strains) was related to the 50% hydroethanolic extracts of A. turanica (defatted and non-defatted) and A. kopetdaghensis (defatted). The growth of S. epidermidis was inhibited by all of the extracts. The highest total phenolic content and yield of extraction were recorded for 70% hydroethanolic extract of A. sieberi and 50% hydroethanolic extract of A. ciniformis, respectively.
Conclusion: The 50% hydroethanolic extract of A. turanica was superior to the other extracts in terms of the in vitro antibacterial spectrum and selective potency. A. turanica and A. kopetdaghensis are probably suitable choices for further phytochemical and antibacterial investigations.
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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