Iranian Journal of Public Health

Provides articles in all areas of health.

Articles from Vol. 43, No. 2, 2014

ACINETOBACTER BAUMANII AND NONBAUMANII IN Iran, EVALUATION OF ANTIBIOTIC RESISTANCE
Background: Acinetobacter species have become increasingly resistant to antibiotics over the past several years and these days there is a significant challenge in treating these infec- tions. They are important causes of nosocomial infectionsMethods:...
A Comparative Study of Antimicrobial Activity of Nisin Loaded in Alginate and Alginate-Resistant Starch Microparticles
Background: This study was designed to compare antimi- crobial activity of alginate and alginate-resistant starch micro- particles against Listeria monocytogenes.Methods: Nisin loaded microparticles were prepared by a w/o-emulsion external cross-linking...
A Comparative Study of Bacillus Subtilis Strains Isolated from Soil and Standard Strain in Biological Control of Soil Borne Plant Pathogens
Background: The aim of present study was to test the anti- fungal activity of Bacillus subtilis strains isolated from domestic soils against Fusariummoniliforme and Verticilliumdahliae com- pared with Bacillus subtilis ATCC21556.Methods: B. subtilis...
A COMPARATIVE STUDY ON DIAGNOSTIC ASSAYS, PCR, MICROSCOPIC AGGLUTINATION TEST (MAT) AND CULTURE FOR DETECTION OF RODENT LEPTOSPIROSIS IN MAZANDARAN PROVINCE, Iran
Background: Leptospirosis is caused by infection with Lep- tospira bacteria. The infection transfers from animals (com- monly rats, cattle, pigs and dogs) to humans. Transmission occurs by direct or indirect contact with serum, urine or oth- er biological...
A COMPARISON AMONG VARIOUS SELECTIVE MEDIA TO ISOLATE THE NOVEL HEAT RESISTANT ACTINOMYCETES FROM SOIL SAMPLES OF GANDOMBERIAN AREA OF THE LUT DESERT, Iran
Background: The aim of this study was to evaluate different selective media in the isolation of the heat resistant actino- mycetes.Methods: 46 samples were collected from the surface (sur- face to 5cm depth) and depth (5-20cm depth) soils of three identified...
A Comparison between Pcr, Oxacillin Agar Dilution and Cefoxitin Disk Diffusion Methods in Detection of Methicillin Resistance in S. Aureus Isolates Collected from Clinical
Background: It is crucial to identify the methicillin resistant S. aureus (MRSA) strains and implement the necessary treat- ment in order to control the spread of hospital infections.Methods: A total of 150 S. aureus isolates were collected from samples...
Adhesion Site of Botulinal Toxin: Is It a Proper Vaccine Candidate?
Background: The botulinum neurotoxins are the causative agents of botulism and represent a family of seven structural- ly similar but antigenically distinct serotypes (A to G). The toxins exert their action by blocking the release of the neuro- transmitter...
Aki in Zoonotic Leptospirosis Infection
Background: In the past decade, leptospirosis has emerged as a globally important infectious disease in human medicine specially in travelers that returning from endemic con- tries;butchers,veterinerian and farmers too. Leptospirosis is a risk factor...
Analysis of a Heavy Metal Extraction by Native Bacteria
Background: AcidithioBacillus thiooxidans is a sulfur- oxidizing bacterium that used in industrial process of bi- oleaching. Bioleaching is the extraction of metals from their ores through the use of living organisms. This processes are commonly more...
Analysis of Single Nucleotide Polymorphisms (Snps) in Pertussis Toxin Promoter of Vaccine and Clinical Isolates of Bordetella Pertussis
Background: The aim of this study is to identify the single nucleotide polymorphisms (SNPs) of pertussis toxin promot- er (ptxP) in clinical isolates and vaccine strains.Methods: Five clinical isolates of Bp, Tohama I as the refer- ence strain, and 2...
Analytical Specificity and Sensitivity of Loop Mediated Isothermal Amplification Assay Targeting Com1 Gene of Coxiella Burnetii
Background: C.burnetii, the bacterium causing Q fever, is an obligate intracellular biosafety level 3 agent. Detection and quantification of these bacteria with conventional methods is time consuming and dangerous. Rapid detection of the agent improves...
An Evaluation and Comparison of Antibacterial Effects of Human Amniotic Membranes and the Amniotic Fluid in Vitro
Background: The present study was conducted to evaluate antibacterial effects of human amniotic membranes and am- niotic fluid in vitro circumstances.Methods: Samples, including amniotic membrane and amni- otic fluid were taken from 60 pregnant women...
Antagonistic Activity of Lactobacillus Strains Isolated from Fecal Microflora of Healthy Breast-Fed Infants against Shigella Flexneri
Background: Shigella £exneri is a Gram-negative facultatively intracellular pathogen responsible for bacillary dysentery in humans. More than one million deaths occur yearly due to infections with Shigella spp. and the victims are mostly chil- dren of...
Antibacterial Activity and Chemical Composition of Medicinal Plant Satureja Bakhtiarica Bung against Multi Drug Resistant Acinetobacter Baumanni (Esbl)
Background: Historically, plants have provided a source of inspiration for novel drug compounds. Plant derived medi- cines have made large contributions to human health and well being. Of late, there is an increment in the use of herbal products all...
Antibacterial Activity of Four Essential Oil Components on Erwinia Carotovora
Background: Antibacterial activity of four essential oil com- ponents including thymol, carvacrol, eugenol and menthol has been evaluated towards the vegetable spoilage bacterium, Erwinia carotovora.Methods: The above mentioned compounds were screened...
Antibacterial Activity of Olea Europaea and Chamaemelum Nobile Extracts on Imp-Type Metallo-Beta-Lactamase-Producing Pseudomonas Aeruginosa
Background: The aim of this study was to evaluate the anti- bacterial activity of Chamaemelum nobile and Olea europaea extracts on IMP-producing P.aeruginosa strains.Methods: This descriptive study was carried out on hospital- ized burnt patients during...
Antibacterial Activity of Tarragon (Artemisia Dracunculus) Essential Oil
Background: Nowadays, adding natural food preservatives is one of the methods for increasing shelf-life. The aim of this study was evaluation of antibacterial effects Tarragon (Artemisia dracunculus) essential oil (TEO) in beef burger product.Methods:...
Antibacterial Activity of Terminalia Catappa Extract against Escherichia Coli Isolated from Urinary Tract Infections
Background: Escherichia coli (E.coli) are an important patho- gen in the Urinary Tract Infection (UTI). E. coli is cause of 80% of UTI. Increasing antibiotic usage for E. coli infections has created antibiotic resistance. Subsequently, it is necessary...
Antibacterial Activity of Terminalia Catappa Extract against Pseudomonas Aeruginosa Isolated from Different Infections
Background: The purpose of this study was to determine the antibacterial activity of methanolic extract from fruit of Terminalia catappa against P.aeruginosa isolated from different infections and to compare with effects of selected antibiotics in vitro.Methods:...
Antibacterial Effect of Aqueous Extracts Medicinal Plants on Standard Strains
Background: In recent years, it is recommended to use nat- ural materials, instead of chemically synthesized drugs with undesirable side effects, in the control and treatment of infec- tions. Increasing usage of medical plants for medical treat- ment...
Anti-Bacterial Effect of Mentha Spicata L. Essential Oil on Eight Standard Species of Gastro Intestinal Pathogens
Background: Nowadays resistance to antibiotics and their side effects has encountered the human with a big problem. As a result, tend to use anti-bacterial compounds of plant origin has been increased. Mint plant scientifically called Mentha spicata...
Antibacterial Effect of Rheum Ribes on Escherichia Coli
Background: In the current study, the antibacterial effect of Rheum ribes on Escherichia coli was investigatedMethods: After preparation of the extract, the minimum inhibitory concentration and minimal bactericidal concentra- tion (MIC / MBC) were determined....
Antibacterial Effect of Silver Nanoparticles on Acinetobacter Baumannii
Background: Acinetobacter baumannii is a Gram-negative, ob- ligate anaerobic, non-fermented and non-motile bacterium. Acinetobacter baumannii has become a particularly important organism in the Intensive Care Unit (ICU). Acinetobacter bau- mannii plays...
Anti-Bacterial Effect of Zataria Multiflora Boiss Essential Oil on Eight Standard Species of Gastro Intestinal Pathogens
Background: Due to worldwide development of antibiotic resistance, the tendency to herbal medicine has grown in re- cent years. Antibacterial substances derived from plants have many applications in controlling microorganisms. Thyme plant scientifically...
ANTIBIOTIC RESISTANCE OF BACTERIA ISOLATED FROM CLINICAL SPECIMENS IN A UNIVERSITY HOSPITAL IN TEHRAN, Iran
Background: Determination of antibiotic resistance of clini- cal isolates can be helpful for delegacy of appropriate drug in urgent experimental remedy of infections.Methods: We tested antibiotic resistance of 696 non- duplicate clinical isolates were...
ANTIBIOTIC RESISTANCE OF LACTIC ACID BACTERIA ISOLATED FROM HOME-MADE IranIAN DAIRY PRODUCTS
Background: Probiotics and dairy starter cultures are micro- organisms which administered in adequate amount in fer- mented food. The main starter bacteria are strains belonging to the genera lactoBacillus which is inhabitants of the human intestinal...
ANTIBIOTIC SUSCEPTIBILITY PATTERN OF PSEUDOMONAS AERUGINOSA ISOLATED FROM PATIENTS WITH URINARY TRACT INFECTION ADMITTED TO DIFFERENT HOSPITALS OF TEHRAN,Iran
Background: Antibiotic resistance pattern of P. aeruginosa isolates varied with geographical location and hospitals envi- ronments.The present study was conducted to determine the antibiotic susceptibility pattern of Pseudomonas aeruginosa from urine...
ANTIBIOTIC SUSCEPTIBILITY PROFILE OF COMMON BACTERIAL PATHOGENS IN THE PEDIATRIC WARD OF DASTGHEIB HOSPITAL, SHIRAZ, Iran: A CROSS SECTIONAL STUDY
Background: The aim of this study was determination of etiological agents of bacterial infection and their antimicrobial susceptibility profiles in the pediatric ward of Dastgheib hos- pital, Shiraz.Methods: A cross-sectional study was carried out on...
Anti-Candida Activity of Trachyspermum Ammi Essential Oil on Azoles Resistant Candida Albicans Isolates from Oral Cavity of Hiv+ Patients
Background: Oral candidiasis, caused by Candida albicans, is one of the most common infections in immunocompromised patients, especially in HIV+ individuals.The aims of this study were to evaluate the susceptibility of C. albicans isolates to azole drugs...
Antifungal Activity of Total Extract and Chloroform, Methanol and Aqueous Fractions of Aerial Parts of Nepeta Depauperata against 5 Fungal Strains
Background: Increased consumption of synthetic antifungal compounds has created serious side effects and wide spread antifungal resistance. We report the results of evaluation of antifungal properties of different crude extract and relevant fraction...
Anti-Listerial Activity of Microencap-Sulated Nisin in Different Biopolymers Microparticles
Background: The aim of this study was to evaluate the anti- listerial activity of nisin microencapsulated in three polymeric systems including alginate, alginate-resistant starch and algi- nate-high methoxy pectin.Methods: Nisin loaded microparticles...
ANTIMICROBIAL ACTIVITY OF ENDOPHYTIC BACTERIAL POPULATIONS ORIGINATED FROM MEDICAL PLANTS IN Iran
Background: The aim of this study was the isolation, mo- lecular identification and antimicrobial activity of endophytic bacteria isolated from medicinal plants in some areas of Iran.Methods: From April to Jun 2013 and April to May 2014, 23 fresh plant...
Antimicrobial Activity of Ethanol and Acetone Extracts of Oregano
Background: This investigation was carried out to assess antimicrobial activity of ethanol and acetone extracts of oregano against two gram negative food spoilage bacteria Pseudomonas sp., Escherichia coli and two gram positive bacteria Bacillus subtilis...
Antimicrobial Activity of Lavandula Angustifolia Mill. Essential Oil
Background: Lavandula genus, the member of Lamiaceae family comprises thirty known species among which Lavandu- la angustifolia is economically important in toiletries and per- fumery industries. L. angustifolia is commonly known in Iran as "Ostokhoddous"...
Antimicrobial Effect of Clove and Thyme Oil and Combinations on Biofilm Producing Enterococcus Faecalis
Background: An important virulence factor of Enterococcus faecalisis its ability to form biofilm. The aim of this study was the activity of Syzygium aromaticum (clove) and Thymus vulgar- is (thyme) and combinations together on E.faecalis biofilm formed...
Antimicrobial Effect of Statins Is Suppressed by Cholesterol
Background: Isoprenoid biosynthesis is a key metabolic pathway producing a wide variety of biomolecules such as cholesterol and carotenoids, which target cell membrane. In the other hand it has been reported that statins known as inhibitors of isoprenoid...
Antimicrobial Effects of Zinc Oxide and Silver Nitrate Nano Particles on S.aureus, A.baumannii and P.aeroginosa
Background: Nano particles have been introduced as novel antimicrobial agents because of their properties that are dif- ferent from their bulk properties. Present study is aimed to investigate antimicrobial activity of silver nitrate and zinc oxide nano...
Antimicrobial Properties of Platelet-Rich Plasma (Prp)
Background: Platelet-rich plasma (PRP) is regarded as a portion of the plasma fraction having high platelet concentration. It has attracted great attention and has been increasingly used for a variety of clinical applications including orthopedic surgeries,...
Antimicrobial Properties of Sodium Caseinate Film Containing Pomegranate Peel Extract on the Ground Meet
Background: Microbial growth is considered as the main cause of food spoilage that can be controlled by the use of films containing antimicrobial compounds. In recent years numerous studies have been conducted to evaluate, the im- pact of the antimicrobial...
Antimicrobial Resistance and Class 1 Integron in Escherichia Coli Strains Isolated from Different Animal Sources
Background: The aim of the current study was to evaluate the prevalence of class 1 integrons associated antibiotic re- sistance among E. coli strains isolated from different animal sources.Methods: E. coli strains isolated from different animal sources...
Antimicrobial Resistance and Survey of Pathogenic Genes of Stx1 and Stx2 in E.coli O157: H7 Isolates from Beef Cattle at Industrial Slaughter House of Fars Province with Multiplex Pcr Method
Background: E. coli O157: H7 is one of the most important pathogenic bacteria that produce, hemorrhagic colitis in hu- mans. Livestock are the main reservoir of these bacteria. The aim of this study was to determine and evaluate the antibiotic resistance...
Antimicrobial Resistance in Campylobacter
Background: Most Campylobacter infections are self-limiting but antimicrobial treatment (macrolides, fluoroquinolones) is necessary in severe cases. Rapidly evolving next-generation sequencing technologies may offer beneficial instrument in the future...
Antimicrobial Susceptibility of Bacterial Pathogens Causing Urinary Tract Infection in Besat Hospital of Sanandaj, 2012-2013
Background: The present study aimed to ascertain the cur- rent situation of antimicrobial resistance of Urinary Tract Infections (UTIs) caused by human pathogens in the Besat hospital of Sanandaj to provide data to help direct empirical therapyMethods:...
ANTIMICROBIAL SUSCEPTIBILITY PATTERN OF ESCHERICHIA COLI CAUSING URINARY TRACT INFECTIONS IN TEHRAN, Iran
Background: Uropathogenic Escherichiacoli (UPEC) are among the most common agents of urinary tract infection (UTI) worldwide. UPEC resistance to commonly used anti- biotics represents a major health problem all over the world. Antimicrobial susceptibility...
ANTI-TRICHOMONAS VAGINALIS ACTIVITY OF THE FOENICULUM VULGARE FROM IranIAN SEMI-ARIED REGION
Background: Trichomonas vaginalis is a parasitic protozoan with a predilection for human urogenital tract and causative agent for vaginitis, cervicitis and urethritis in females. The drug of choice for therapy is metronidazole however the main drawback...
ANTI-TUBERCULOSIS DRUG RESISTANCE IN WEST OF Iran
Background: Mycobacterium tuberculosis has developed re- sistance to anti-tuberculosis drugs and becoming a major and alarming public health problem in worldwide. This study aimed to determine anti-tuberculosis drug resistance rate and to identify multidrug...
A Recombinant Subunit Vaccine Based on the L7/l12 and Tomp31 Proteins Induces Protection against Brucella Infection in Balb/c Mice
Background: Brucellosis is the most common bacterial zo- onotic disease worldwide and no vaccine is available for the prevention of human brucellosis. In humans, brucellosis is mostly caused by Brucella melitensis and Brucella abortus. The Omp31 and...
A Road to Cell Cycle Controlling: Cloning of a Cdch Antisense Coding Region in a Halobacterium Salinarum R1-E. Coli Shuttle Vector
Background: In the this research we designed and cloned an antisense coding fragment against cdcH gene in a H. salinarum - E. coli shuttle vector that seem involved in cell cycle.Methods: First of all the cdcH gene sequence downloaded from NCBI Genbank....
Assay for Integrons and Characteriztion of Antimicrobial Resistance in E.coli Strains Isolated from Urinary Tract Infections
Background: The aim of this study was to determine the prevalence of multidrug resistant Escherichia coli in clinical specimens. In addition, the existence of integrons in resistant isolates was assessed by amplification of integrase genes.Methods: Susceptibility...
ASSOCIATION BETWEEN PRODUCTION OF THE ENTEROTOXIN A AND THE PRESENCE OF COA AND NUC GENES AMONG S. AUREUS ISOLATED FROM VARIOUS SOURCES, IN SOUTHERN Iran
Background: Staphylococcus aureus is considered as a common cause of food-borne disease, worldwide. The present study was aimed to identify the frequency of coagulase (Coa) and thermonuclease (Nuc) genes and Staphylococcal enterotoxin A (Sea) production...
A Study on Antibiotic Resistance Patterns of Main Bacteria Isolated from Surgical Rooms, Intensive Care Units (Icu and Nicu) and Burn Wards in Hamadan Education Hospitals
Background: The aim of this study was the evaluation of antibiotic resistance patterns of main bacteria isolated from surgical rooms, Intensive Care Units (ICU and NICU) and Burn wards in Hamadan Education HospitalsMethods: This was a cross-sectional...
A SURVEY ON OROPHARYNGEAL COLONIZATION BY NEISSERIA LACTAMICA, OTHER NONPATHOGENIC NEISSERIA SPECIES AND MORAXELLA CATARRHALIS IN HEALTHY YOUNG CHILDREN IN AHVAZ, Iran
Background: Neisseria lactamica as a main commensal in oro- pharynx during the childhood is related to the induction of a natural immunity against meningococcal meningitis. Also Moraxella catarrhalis in oropharynx of children is a predispos- ing factor...
A Survey on the Antimicrobial Effect of Methanolic Extract and Alkaloid Fractions of Aerial Parts of Glaucium Vitellinum against Different Bacterial Strains and Candida Spp with Disk Diffusion and Mic
Background: In this study the antibacterial effect of Glauci- um vitellinum against some bacterial strains and C. albicans were evaluated by disk diffusion and microdilution methods.Methods: Aerial parts of the plant were collected in April- May 2012...
A SURVEY ON THE PREVALENCE RATE AND ANTIBIOTIC SUSCEPTIBILITY OF ESCHERICHIA COLI IN CONSUMED KOOZEH CHEESES OF URMIA CITY -Iran
Background: Koozeh cheese is of the local traditional cheeses of Azerbaijan and Kurdistan areas of Iran. This cheese is mainly produced with sheep milk, and curdles with rennet. For ripening, it is placed in the jar and buried in ground for 2 to 3 months...
Bacillusthuringiensis and Its Effects on Growth of Capsicum Annuum
Background: The aim of this study is isolation of this spe- cies from soil and evaluation of its metabolite on growth of Capsicum annuum.Methods: In the present study 37 soil samples has been col- lected from around Marvdasht region in Fars Province....
Bacterial Contamination of Traditional Ice Cream in Tehran
Background: From hygienic quality aspect, most of the pre- sent traditional ice cream has non-conforming with extant standards. Pasteurization of primary ice cream mixture with sufficient thermal processing increase hygienic quality level and causes...
Bacterial Examination of Cookie and French Fries Boxes
Background: The aim of this study was to investigate the bacteriological contamination of paper and paperboard, that are used for food packaging. In this way, two testing methods were recruited in order to estimate the number of bacteria.Methods: Two...
Bacterial Isolation from Disposable Foil Containers for Food Packaging
Background: In this study, the bioburden of bacteria on foil was investigated for the first time.Methods: Two methods employed including; Agar flooding and defibering methods. In the first method, 11 cm × 20 cm of foils were prepared (1 g), which 1cm...
BEHAVIOR OF DIFFERENT STRAINS OF YERSINIA ENTEROCOLITICA DURING MANUFACTURE, RIPENING AND STORAGE OF IranIAN ULTRA-FILTERED WHITE CHEESE
Background: This study aimed to evaluate the behavior of different strains of Y. enterocolitica during manufacture, ripen- ing and storage of ultra-filtered white cheese.Methods: Three strains of Y. enterocolitica (PTCC 1480, PTCC 1478 and PTCC 1151)...
Biocontrol of Milk Contamination to Escherichia Coli by Using of Bacteriophage
Background: Milk is a complete food for humans, and it is also a good media for bacteria because it contains all the nu- trients such as proteins, fat and lactose. Entry of food-borne pathogens via contaminated raw milk into dairy products processing...
BIODEGRADATION OF RESORCINOL USING STREPTOMYCES SP. BACTERIA ISOLATED FROM THE NORTH WEST OF Iran
Background: In this study, the ability of Streptomyces sp. bac- terial strains isolated from the soil of the East Azerbaijan in biodegradation of resorcinol was investigated. These isolates are more compatible with the weather of northwest region because...
Biofilm Formation and Antibiotic Resistance of Acinetobacter Spp. Isolated from Skin and Wound Infections
Background: Some bacteria cause severe infections in com- promised patients and they survive on abiotic surfaces in hospital environments and colonize on different medical devices. On this basis, samples of skin and wound infections were collected from...
BIOLEACHING OF MANGANESE FROM STONE WHICH CONTAINS PYROLUSITE THROUGH NATIVE MICROBIAL STRAINS IN Iran
Background: Bioleaching of manganese is an industrial method for its recovery from stone which contains pyrolusite (Mno2). In this method, the host minerals are analyzed and revived by certain bacteria. The present research has been done in Iran, for...
Bioremediation of Nickel through Metarhizium Sp. Utmc 5002
Background: In this study, we isolated nickel resistance fun- gi and evaluated their potential for bioremediation appli- cation in acidic pH condition.Methods: Soil samples were collected from heavy metal con- taminated parts of Iran. Fungal colonies...
Biosynthesis of Silver Nanoparticles by Lactobacillus Casei
Background: In this study we used Lactobacillus casei (PTCC1608) as a probiotic to biosynthesis of AgNp. AgNp biosynthesized by this safe microorganism can used in medi- cine and pharmacology.Methods: Lactobacillus casei was cultured in MRS broth and...
Campylobacter Jejuni Isolated from Milk Samples in Warm Months
Background: Several pathogens can be transmitted through food such as Campylobacter jejuni. This bacterium causes gas- troenteritis, diarrhea, recurrent arthritis, urinary tract infec- tion, meningitis, cholecystitis, endo-carditis and GBS.Since C. jejuni...
Changes in Diversity of Pseudomonas Spp. during Bioremediation of Polycyclic Aromatic Hydrocarbons
Background: Here we studied the changes in diversity of Pseudomonas spp. during bioremediation of PAHs in soil mi- crocosms prepared using soil samples gathered from KhangI- ran, Khorasan Province, Iran.Methods: The polluted soil microcosm was constructed...
Characterization of Chlamydia Trachomatis Omp1 Genotypes Isolated from Patients with Follicular Conjunctivitis Referred to Farabi Hospital by Rflp
Background: In this study, we used Omp1 Genotyping for analysis of samples from patients with follicular conjunctivitis referred to Farabi Hospital.Methods: Conjunctival scraps (n=90) were obtained from patients who were referred to the diagnostic laboratory...
Characterization of Leishmania Parasites in Suspected Patients of Cutaneous Leishmaniasis by Targeting Its-Rdna, Its-Microsatellite in Shush City, Northern Khuzestan (2012-2013s)
Background: This study was done to identify the Leishmania parasites using microscopic and molecular methods in sus- pected patients of cutaneous leishmaniasis by targeting ITS- rDNA and ITS-microsatellite genes in Shush city, Northern Khuzestan.Methods:...
CHARACTERIZATION OF OVERT AND OCCULT HEPATITIS B VIRUS INFECTION AMONG HTLV-1 POSITIVE HEALTHY CARRIERS IN THE NORTHEAST OF Iran; AN HTLV-I ENDEMIC AREA
Background: To date, no studies have provided data on hepatitis B virus (HBV) prevalence among asymptomatic, healthy human T-lymphotropic virus (HTLV-I) positive car- riers. This sero- and molecular epidemiology study was per- formed on patients in the...
Characterization of Subtypes of Ctx-M Extended-Spectrum B -Lactamase among Klebsiella Spp
Background: The CTX-M family consists of more than 20 ß-lactamases which were on the basis of sequences divided into 4 subtypes including CTX-M-1, CTX-M-2, CTX-M-8 and CTX-M-9. The aim of current study was to detect the subtypes of CTX-M ESBLs among...
Chemical Composition and Antibacterial Activity of Essential Oil from (Rosmarinus Officinalis) and (Mentha Spicata) against Oral Pathogens
Background: The microorganisms evaluated in this study are considered risk factors for oral diseases such as caries and periodontitis; they can also reach the bloodstream triggering other diseases in the human body, like endocarditis, brain abscesses,...
CIPROFLOXACIN SUSCEPTIBILITY OF CLINICAL AND ENVIRONMENTAL NONTUBERCULOUS MYCOBACTERIA ISOLATED FROM ISFAHAN, Iran
Background: In this study, the susceptibility of 20 environ- mental and 21 clinical isolates of Non- tuberculous Mycobac- teria to ciprofloxacin was determined by agar dilution meth- od.Methods: Total of 41environmental and clinical isolates of NTM from...
Citrinin Reduction in Wheat Flour by Using "Yeast Saccharomyces Cerevisiae"
Background: Wheat is the main cereal that is used in Iran and in the world. Citrinin is a toxic metabolite produced by Penicillium, Aspergillus and Monascus into grains, foods, feedstuffs. Eating this contaminated product causes of acute and chronic...
Clonal Evolution of Multi-Drug Resistant Acinetobacter Baumannii by Pulsed-Field Gel Electrophoresis
Background: The aim of this study was to determine the MDR isolates and the existence of OXAs genes among MDR isolates of A. baumannii collected from Kermanshah hospitals in west of Iran.Methods: Fourty-two MDR A. baumannii isolates were col- lected...
Cloning and Expression of Tnf Alpha Receptor in E.coli
Background: TNF alpha is an adipokine involved in system- ic inflammation and it is a member of a group of cytokines that stimulate the acute phase reaction. It is produced by macrophages and different cell types such as CD4+ lympho- cytes, NK cells.Deregulation...
COMMUNITY-ACQUIRED METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS NASAL COLONIZATION PREVALENCE; A PROSPECTIVE STUDY IN Iran
Background: Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) is a serious pathogen and its nasal carriage is a risk factor for subsequent infections. This study aims at determining the prevalence of and risk factors for CA-MRSA...
Comparative Study of of Antimicrobial Activities of Cu and Zno Nanoparticles against the Pathogenic Strain of Klebsiella Pneumoniae
Background: The use of metal nanoparticles can be effec- tive to eliminate the bacterial infections, as an alternative to antibiotics. The aim of this study was to detect the antibacte- rial properties of 0.01, 0.5 and 1% nano-Cu and nano-Zno against...
COMPARISON BETWEEN GENE CASSETTES ARRAY OF INTEGRON CLASS I IN MULTIDRUG RESISTANCE ACINETOBACTER BAUMANNII AND KLEBSIELLA PNEUMONIAE IN Iran
Background: Integrons are considered to play a major role in multidrug resistance dissemination among gram-negative bacteria. These are genetic elements capable of integrating and mobilizing individual gene cassettes via a site-specific recombination...
Comparison of Cage and Baba Virulence Genes Expression in Spiral and Coccoid Forms of Helicobacter Pylori
Background: Under stressful environment, a spiral form of H. pylori is transformed into a coccoid form. The coccoid formation is very important problem in recurrence of disease and antibiotic treatment failure in gastritis pateints. Our ob- jective of...
Comparison of Four Diagnostic Methods for Detection of Methicillin-Resistant Staphylococcus Aureus
Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a well-known pathogen with a worldwide distribu- tion. Due to the increasing rate of MRSA infections, imple- menting of reliable, accurate and rapid testing for diagnosis of MRSA is necessary....
Comparison of the Antibacterial Effects of Three Endodontic Root Canal Sealers (Ah26, Ah Plus and Mta Fillapex) on Enterococcus Faecalis
Background: Successful endodontic treatment requires ef- fective removal of the bacteria from the mechanically formed canal. Sealers used to fill the canal should also have antibacte- rial properties in order to prevent bacterial growth. In this study...
Comparison of the Enzymatic Activities of Candida Species in Women with Vaginitis
Background: The aim of this study was to assess the enzy- matic activity of Candida species isolated from the vagina of women with vaginal candidiasis.Methods: The research was performed on 250 vaginal sam- ples from patients referred to health centers...
Comparison of the Morbidity of Thrichomonas Vaginalis with Three Methods: Dorset, Diamond and Pcr
Background: Trichomonas vaginalis is a flagellate cell, which lives in the genital- urinary area. It is one of the most com- mon factors, which results in the antivirus and venereal dis- ease cause trichomoniasis. The object of this study is to eval-...
Comparison of Three Methods for Evaluation of the Antimicrobial Activity of Lactobacillus Acidophilus Bacteria Againstescherichia Coli and Salmonella Enterica Serotype Enteritidis
Background: In this study, the comparison of three meth- ods was accomplished for evaluation of the antimicrobial activity of Lactobacillus acidophilus bacteria against Escherichia coli and Salmonella enterica serotype enteritidis as common gas- trointestinal...
Continuous Screening of Lipid Degradating Yeasts and Its Application in Treatment of Oily Wastewater
Background: The aim of this study was to continue the screening of lipophilic yeasts with high specific growth rate for wastewater treatment.Methods: Soil samples were collected from soil with oil pol- lution. These samples were used in a continuous...
Correlation of Macroscopic Biofilm Production and Presence of Virulence Determinants in Clinical Isolates of Staphylococcus Epidermidis
Background: Ability of biofilm production is one of the molecular mechanisms of S. epidermidis pathogenesis. Viru- lence related gens play role in the bacterial attachment to artificial surface and host surfaces which covered by proteins. This study...
Cytocidal Actions of Parasporin, an Anti-Tumor Crystal Toxin from Bacillus Thuringiensis
Background: Parasporin, a new crystal protein derived from non-insecticidal and non-hemolytic Bacillus thuringiensis, rec- ognizes and kills human colon cancer cells as well as some classes of human cultured cells. Here we report that a novel cytotoxic...
Design and Cloning of an Antisense against Bacteriorhodopsin-Linked Protein Coding Gene of Halobacterium Salinarum R1
Background: Our goal in this study is designing antisense against blp . To identify function of genes there are multiple ways. One of these approaches is designing of antisense that prevent function of desired gene.Methods: At the first stage we designed...
Design and Synthesis of Novel Diphenylurea Derivatives with Antimicrobial and Antifungal Potential
Background: As regards the halogen, atoms in the pharma- cophore structure can be beneficial for antimicrobial activity; therefore, chloro derivatives were chosen to synthesize our target compounds. In view of these observations, we have designed new...
Designing and in Silico Analysis of a Chimeric Protein Containing Fimh and Flic as a Candidate Vaccine against Uropathogenic E.coli (Upec)
Background: Then in this study chimeric proten cotaining FimH and FliC, was designed and insilico analysys was per- formed.Methods: Chimeric protein involving FimH of UPEC, and FliC of EAEC was designed. These proteins were fused to- gether by (EAAAK)4...
Designing of Elisa Kit for Rapid Detection of Mycobacterium Tuberculosis Infection with Recombinant Cfp10 Protein
Background: In the present study using Indirect ELISA, we evaluated IgG class antibodies among tuberculosis patients against recombinant CFP10 antigen.Methods: In this study, Indirect ELISA method was used to investigate the serum reactivity to CFP10...
Design of Novel Internal Positive Control (Ipc) for Molecular Detection of Infectious Bronchitis Virus (Ibv) through Real Time Rt Pcr
Background: The aim of the present survey is to design and construct a plasmid containing recombinant 5'UTR and 3'UTR genes as positive control and internal positive control.Methods: We constructed an IPC that can be amplified by the same primer pair...
Design, Synthesis, Molecular Cloning and Expression Evaluation of Wheat (Triticumaestivum) Defensin Protein in E.coli Host
Background: This study was done to design, synthesis, clon- ing and expression evaluation of wheat defensin protein.Methods: In this study, defensin gene optimized and fused to sumo gene for more expression in E. coli Origami. Sumo gene encodes a protein...
Detection and Enumeration of Coagulase-Positive Staphylococcus in Sohan
Background: Sohan, an Iranian traditional confectionery product is prepared from wheat flour, wheat sprout flour, sugar, oil, eggs and other free material decorated with nuts. It comes in various shapes, forms and sizes, and can be stuffed with nuts....
Detection and Investigation of Escherichia Coli in Contents of Duodenum, Jejunum, Ileum and Cecum of Broilers by Pcr
Background: Escherichia coli strains cause a number of dis- eases in broiler chickens, ultimately leading to death or to a decrease in production or the condemning of carcasses. In this study, the isolation and molecular detection of E. coli from broiler...
DETECTION AND PREVALENCE RATE OF AMERICAN COCKROACHES' BACTERIAL INFECTIONS IN HUMAN DWELLINGS, SOUTH WESTERN Iran
Background: This descriptive study was carried out to con- firm that Periplaneta americana L. (Dictyoptera; Blattidae) carry pathogenic and potentially pathogenic bacteria in resi- dential areas by bacteriological analysis on the cuticles of this insect.Methods:...
Detection of Aspergillosis in Immunocompromised Patients
Background: Immunocompromised patients have been increasing in recent decades and Aspergillus species are the most frequent moulds have been isolated from immunocompromised patients. As the mortality rate is very high in these patients early detection...
Detection of Beta-Lactamase Resistance Genes (Blandm, Blavim) among Strains of Acinetobacterbaumannii Isolated from Clinical Samples by Pcr
Background: Nowadays, one of the drugs that have been used extensively throughout the world to treat multidrug resistant Acinetobacter infections is ß-lactam family. Acinetobac- ter spp. produces ß- lactamase enzymes that leads to inactiva- tion of antibiotics...
DETECTION OF BLACTX-M, BLATEM, BLASHV GENES IN KLEBSIELLA PNEUMONIAE STRAINS ISOLATED FROM TWO HOSPITALS OF TEHRAN, Iran
Background: An increasing clinical incidence of antibiotic- resistant Klebsiella pneumoniae is a major global health care is- sue. Therefore, the aim of this study was detection of blaCTX-M, blaTEM, blaSHV genes from two hospitals of Tehran, Iran.Methods:...
Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.