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Nasrollahi Omran A(phd), Vakili L(msc), Jafarpur M(phd),
Volume 5, Issue 1 (4-2011)
Abstract

Abstract Background and objectives: Genital tract infections are among the most common causes of patients referred to therapeutic centers. Nearly 75% of women suffer from genital Candida infection, at least once in their lifetime. The aim of present study was detection of Candida species causing vaginitis and the evaluation of antimycotic effects of ketoconazol, clotrimazole and fluconazole against Candida species. Material and Methods: In this study, 210 vaginal samples were obtained from the patients suspected of Vaginal Candidiasis. Direct examination and culture were carried out for all specimens to detect the yeast. The isolated yeast species were then identified, using various different tests such as culture on corn meal agar, tween-80, germ tube test, and assimilation test by API 20C kit by using Sabouraud Dextrose Agar and microdilution broth, MIC90 and MIC50 of drug were measured and determined their drug resistance. Results: In the present study, 100 yeast colonies were isolated from patients %80 are C. albicans and the rest are C. parapsilosis(2%), C. tropicalis(6%), C. glabrata(4%), C. krusei(2%), C. guilliermondii (3%), C.stellatoidea(3%). In terms of drug resistance test MIC50 and MIC90 of fluconazole for candida albicans are 5.33 and 35.27μg/ ml, respectively, and for non-albicans candida are 3 and 21.4μg/ml, respectively. Clotrimazole MIC for Candida albicans (MIC50, MIC90) 0.97 and 4.9μg/ml, respectively, and for non-albicans 0.63 and 3.4/ml, respectively. Kectoconazole MIC for Candida albicans 2.43 and 16.45μg/ml, respectively, and for non-albicans 1.12 and 6.6μg/ml, respectively. Conclusion: Clotrimazole has been better than the two other drugs for Candida species on the whole, non albicans species are more sensitive than albicans species in the presence of the drugs used in this study. Key words: Candida, vaginal candidiasis, Resistance drug , Tonekabon.
F Safarnezhad Tameshkel, Mr Khatami Nejad, A Nasrollahi, P Rahdari, F Gholam Hossein Poor, S Kazemi Afarmejani,, A Rahnavard,
Volume 6, Issue 2 (10-2012)
Abstract

Abstract Background and objectives: Giardiasis is a parasitic infection of small intestine, with a worldwide distribution and the prevalence of Giardia in different parts of the world varies between 1 to 25%. Plants have the vast range of antimicrobial and antifungal activity that can be identified as alternative treatments for bacterial and parasitic pathogens, the same as Giardia. In this study, the methanol extracts of eucalyptus plants, Satureia hortensis and Heracleum glabrescens, on Giardia cysts were studied in vitro. Material and Methods: The cysts were isolated from the feces using a modified Bingham. After counting by Hemusytumetr, they were placed near by 200 mg / ml, 100 mg / ml and 10 mg / ml of the extracts prepared by DMSO for 30 and 60 minutes. Then, the number of dead and live cysts was counted under a microscope. Results: the fatality effect of the extracts in 60 minutes is higher than those of 30 minutes. The methanol extracts of Satureia hortensis, Eucalyptus and Heracleum glabrescens with the dilution of 200 mg/ml in 60 mins have the fatality effect of 84/3%, 63/3% and 44%, respectively. The highest fatality(84.3%) on Giardia cysts is related to Satureia hortensis with the dilution of 200 mg/ml in 60 mins and the Lowest(27%) is related to Heracleum glabrescens with the dilution of 10 mg/ml in 30-minute period. The significant relationship between the plant type and the fatality of methanol extracts is observed. Conclusion: the methanol extracts of Eucalyptus, Heracleum glabrescens and especially Satureia hortensis have anti-parasitic effects in the laboratory conditions. Thus, they can be used in the future, instead of the chemical antiparasitic drugs. Key words: Antibacterial Giardia lamblia cysts, Eucalyptus, Satureia hortensis, Heracleum glabrescens, Tonekabon


Ma Mansourighiasi, A Nasrollahiomran, M Hashemi, P Rajab Zadekanafi, M Jahangiri Rad Manjili,
Volume 7, Issue 1 (4-2013)
Abstract

Abstract Background and Objective:Staphylococcusaureus is one of the important factors causing nosocomial infections. Typically 25-30 percent of healthy people carry the bacteria in their anterior nasal cavity. The physicians(50%), nurses (70%) and hospital staff (90%) are the carriers of this bacteria, leading to the infection of inpatients. The emergence of antibiotic-resistant Staphylococcus strains to vancomycin and methicillin has brought about several problems in treatment of the infections caused by Staphylococcus strains. Hence, we aimed to study the frequency of staphylococcus aureus carriers and resistance pattern among medical personnel of the surgical ward in ShahidRajaee hospital, Tonekabon. Material and Methods: this analytic-descriptive study was conducted on the samples taken from nasal carriage of medical staff of surgical ward (N=120). Antibiotic- resistant of Staphylococcus strains was assessed by antibiogram and disk diffusion (DAD), in accordance with CLSI standards. Results: of 34 (28.33%) who are nasal carriers of staphylococcus, 12 are over 30 years old and 24 under 30. Based on antibiogram, 1.97% of specimens are sensitive to Gentamicin and Co-trimoxazole, 1.94% to Ciprofloxacin, 2.88% to Vancomycin and 6.20% to Methicillin. In addition, 100% of specimens are resistant to Ampicillin, 1.97% to Penicillin and 2.88% to Amoxicillin. Four isolates areresistant,both to methicillin and vancomycin. Conclusion:In this study, the spectrum of S. aureus resistant and sensitive strains to some antibiotics is similar to other studies, but a dramatic increase is seen in the rate of MRSA and non-susceptible cases to vancomycin. The Effectiveness of Penicillin, Amoxicillin and Ampicillin is still very low on S. aureus samples. Key words: Prevalance Resistance Pattern, Staphylococcus aureus, Medical Staff, Nasal Cavity, Tonekabon
A Raefi, N Nasrollahi Omran, A Nazemi,
Volume 9, Issue 2 (7-2015)
Abstract

Abstract

Background and Objective: Malassezia yeast is considered lipophilic normal flora of human skin and warm-blooded vertebrates. This fungus is an opportunistic pathogen in causing seborrheic dermatitis. In this study, the yeasts isolated from the crust of the patients with seborrheic dermatitis were identified by PCR-Sequencing.

Material and Methods: In this study, 65 samples of the skin of ear, nose and dandruff were cultured in selective medium Sabouraud agar and modified Dixon agar to prevent dehydration. After biochemical tests, ITS1-4 Universal PCR primers were used to determine the species of yeast.  Obtained PCR products were sequenced for the determination and identification of Malassezia species.

Results: Of nine samples obtained from scalp, four were Malassezia globosa, two Malassezia restricta, two Cryptococcus albidus and one Cryptococcus albidus milis.

Conclusion: The results of Malassezia globosa and Malassezia Restericta are very similar with those in studies elsewhere.

Keywords: Malassezia, Sequencing, Seborrheic Dermatitis, Tonekabon



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