Showing 67 results for Saleh
Azizi F, Etemadi A, Salehi P, Zahedi Asl S,
Volume 61, Issue 5 (15 2003)
Abstract
The aim of the present investigation was to determine the prevalence of metabolic syndrome.
Materials and Methods: Metabolic syndrome was defined by the presence of three or more of the following components: abdominal obesity, hypertriglyceridemia, low HDL-C, high blood pressure, and high fasting glucose.
Results: In this study, 10368 of the adults (4397 men and 5971 women) aged 20 years and over, participated in Tehran Lipid and Glucose study. The unadjusted prevalence of metabolic syndrome in the study population was 30.1% (CI 95%: 29.2-31.0), and age-standardized prevalence was 33.7% (CI 95%: 32.8-34.6). The prevalence increased with age in both sexes. Metabolic syndrome was more commonly seen in women than men (42% vs. 24%, p< 0.001). Low HDL-C was the most common metabolic abnormality in both sexes. Except for high FPG, all abnormalities were more common in women than in men (p< 0.001). Most of those with metabolic syndrome had 3 components of the syndrome (58%), 33% had four, and 9% had five
components.
Conclusion: This first report on metabolic syndrome from Iran shows a high
prevalence of this disorder, imposing serious impacts on health care system. Efforts
on promoting healthy diets, physical activity, and blood pressure control must be
undertaken.
Mirsalehian A, Jabalameli F, Kazemi B, Alizadeh S A,
Volume 61, Issue 6 (15 2003)
Abstract
Background: Staphylococci as a micro-organism, has the most importance to cause nosocomial infections, particularly in patients with indwelling catheters or other medical devices. Unfortunately 90% of Staphylococci isolated from the nosocomial infections are resistant to methicillin, and methicillin resistance strains are also resistant to a wide range of antimicrobial drugs, therefore detecting of these strains are valuable to eradicate the infection elements. Despite guidelines published by the national committee for clinical laboratory standards (NCCLS) for testing of susceptibility to methicillin for Staphylococci, the phenotypic method for detecting methicillin resistance remains controversial. Therefore, the genetic assays have been used to detect antimicrobial susceptibility of Staphylococci to methicillin.
Materials and Methods: Resistance to methicillin is coded by mec A gene in staphylococcus, and this gen must be detected in genetic assays. In this study 155 clinical staphylococcal isolates (70 coagulase- negative staphylococcus and 85 coagulase- Positive staphylococci) were evaluated for susceptibility to methicillin by using disk diffusion method.
ResuIts&Conclusion: Methicillin resistance was shown in 62 coagulase- negative staphylococcus (72.9%) and 27 coagulas positive staphylococcus (38.6%) but 63 coagulase negative Staphylococci (74%) and 28 coagulase positive isolates with mec a gene associated resistance were detected by PCR method. The results of this test were compared to the results for mec A gene detection by PCR test as a gold standard. The sensitivity, specifity and accuracy of the disk diffusion test for coagulase-negative staphylococcus were 96.8%, 95.45% and 96.47% and for coagulase positive staphylococci were 98.43%, 95.45% and 98.32% respectively.
N Rahimi-Fard, A Mirsalehian, P Maleknejad , N Ebrahimi-Daryani,
Volume 64, Issue 2 (30 2006)
Abstract
Background and Aim: Helicobacter pylori is the etiologic agent of chronic –active gastritis, gastroduodenal ulcers in humans, and a co-factor in the occurrence of gastric cancer and mucosa-associated lymphoid tumors, Adhesion of H.pylori to the gastric mucosa is a critical and also initial step in the pathogenesis of the disease. Bacterial adhesion inhibitory agents provide a novel pharmacologic approach to the management of infectious diseases.
Materials and Methods: 22 H. pylori strains, isolated from the antral biopsies of 49 patients with dyspepsia, gastritis, gastric ulcer, duodenal ulcer,…were assayed by ELISA (UPR)to investigate the diversity of attachment to 7 mamalian cell lines.
Results: The concentration of H.pylori and cell suspention ,the condition and temperature, can alter the attachment rate.Best bacterial concentration was equal to 1 Mc farland,and for cell suspension was 5*10 cells/ml.90 minutes in 37C incubation period result in maximum attachment. H.pylori can attach to all 7 cell lines, there are no significant differences between 22 H.pylori strains in attachment to cells. The attachment pattern of H.pylori to the cells showed significant reduction respectly from HepII, HeLa, SW742, AGS,HT29/219, HT29 to Caco-2.Maximum attachment were seen to HepII, HeLa and SW742 cells, and among these HepII was the best cells for this purpose.
Conclusion: Our studies suggest that Hep II, HeLa and SW742 cells could serve as a suitable in-vitro model for the study of H.pylori adhesions, attachment, inhibition of attachment and detachment assays and among these Hep II cell is prefer recommended.
Mousavi M, Eslami M, Sattarzadeh Badkoubeh R, Radmehr H, Salehi M, Tavakoli N, Avadi Mr,
Volume 64, Issue 10 (2 2006)
Abstract
Background: Adrenergic beta antagonists are not sufficient to prevent atrial fibrillation after coronary artery bypass graft (CABG). This study was designed to evaluate the effect of ascorbic acid as an adjunct to beta-blockers in prevention of post-CABG atrial fibrillation
Methods: Patients who were more than 50 years old and scheduled to undergo CABG were included if they were treated with beta-blockers at least 1 week before surgery. Patients with previous history of atrial fibrillation, AV block, heart rate <50 /min, end-stage renal disease, severe pulmonary or liver disease and those who were taking digoxin or class I and III anti-arrhythmics or had pacemakers were not included. Ascorbic acid group were prescribed 2 gm of ascorbic acid, the night before the surgery, and 1 gm twice daily for 5 days after surgery. Beta blockers continued in both group after surgery. Telemetry monitoring was performed in ICU and Holter monitoring was performed for 4 days.
Results: Fifty patients completed the study as ascorbic acid and 50 as control group. The population was 60.19 ± 7.14 years old and 67% were male. The incidence of postoperative atrial fibrillation was 4% in the ascorbic acid group and 26% in control group (odds ratio=0.119, 95% confidence interval: 0.025 to 0.558, P=0.002)
Conclusion: Ascorbic acid is well-tolerated, relatively safe and seems effective. Therefore it can be prescribed as an adjunct to beta-blockers for prophylaxis of post-CABG atrial fibrillation.
Salehi Nodeh A.r, Ghaffori Sh, Alimohamadian M.h, Sarraf Nejad A, Mirshafiei A,
Volume 64, Issue 11 (7 2006)
Abstract
Background: TPS is one of the tumor markers which has specially been considered due to its exclusive physiological characteristics like its easy measurement in serum of cancer patients. This study has been due to evaluate the efficiency of this tumor marker in the prognosis, treatment control and follow up of patients with gastrointestinal cancers including esophagus, stomach and colorectal.
Methods: TPS has been measured in 109 persons including 28 healthy people and 81 patients with different gastrointestinal malignancies which were composed of 38 patients with esophageal cancer, 20 ones with stomach cancer and 23 ones with colorectal cancer. Sampling has been done in three times depending on treatment methods. TPS has been measured with ELISA in samples which contend of 2 to 3 ml of serum from patients and the health.
Results: The obtained results, demonstrate the obvious changes in TPS serum level in patients underwent various treatment procedures.
Conclusion: The results have revealed that the serum TPS is not only as a measure of prognosis but also would be helpful in follow up and treatment control of the disease. Moreover the results has shown that serological analysis can be settled in the diagnosis and follow up with production of polyclonal antibody against TPS gene family and planning appropriate pattern.
Mirsalehian.a, Nakhjavani.f, Peymani.a, Jabalameli.f, Mirafshar.s M, Hamidian.m,
Volume 65, Issue 1 (5 2008)
Abstract
Background: The incidence of ESBL producing species have been steadily increased in
recent years, resulting in limitation of infection control issues and therapeutic
options.The purpose of this study was to evaluate prevalence of Enterobacteriaceae and
also assess epidemiology ESBL producing strains isolated from patients admitted in
ICUs.
Methods: A total of one hundred fifty isolates were collected from urine, sputum, blood,
wound and other clinical samples from patient admitted in ICU and then were identified
by biochemical tests .All of the samples were screened by DAD method according to The
NCCLS Guideline. The species that met NCCLS screening criteria was further tested for
Clavulanic Acid effect by confirmatory method.
Results: A total of one hundred fifty isolates,133(89.3%) were found to be resistant at
least on of the indicators cephalosporin tested according to NCCLS Guideline.
121(80.6%) of the isolates were resistant to all the indicators tested .89(59.3) isolateds
were confirmed as ESBL producers. The number of isolates ESBL producing was as
follow: Klebsiella pneumoniae 33 (76.74%), E.coli 20 (60.60%), Enterobacter cloacae 8
(47.05%), Citrobacter diversus 6 (54.54%), Enterobacter aerogenes 7 (53.84%),
Citrobacter freundii 4 (40%), Klebsiella oxytoca 6 (62.5%), Proteus mirabilis 4 (50%),
Serratia marcescens 2 (40%), Proteus Volgaris 0%.All of the isolates sensitive to
imipenem.
Conclusion: The present study shows high prevalence of ESBL producing
Enterobacteriaceae from patients admitted in ICU .The increased rate of these species in
most cases due to the administration of inadequate and irrational antimicrobial therapy
.To overcome this problem, it needs to develop new antimicrobial agents, limiting the
Unnecessary Use of antimicrobial and increasing compliance with infection control
issues.
Ghanaati H, Aghaee S, Salehianzandi N, Shakiba M, Jalali S.a.h,
Volume 65, Issue 2 (8 2008)
Abstract
Background: Imaging abnormalities in the paranasal sinuses are regularly noted as incidental findings on MRI, however, little is known about their prevalence in the Iranian population. The purpose of this study was to classify these findings in the paranasal sinuses as seen on MRI and to investigate the prevalence, according to site and type of paranasal abnormality.
Methods: In this cross-sectional study, the T2-weighted axial MRI of 256 patients with diseases unrelated to their paranasal sinuses were reviewed between May 2002 and June 2003. The findings were categorized according to the anatomic location and the imaging characteristics of the abnormality. The abnormalities recorded included total sinus opacification, mucoperiosteal thickening >5mm, air fluid levels and retention cysts or polyps. Unilateral or bilateral involvement and septal deviation were also noted. A sinus was considered normal if it was fully aerated and no soft-tissue density was apparent within the cavity.
Results: Among our cases, 111 (43.5%) were male and 145 (56.5%) were female. Of these patients, abnormalities in one or more of the sinus groups were found in 110 subjects (42.9%), 55.5% of which were male and 44.5% were female (P=0.001). Maxillary sinus abnormalities were observed in 66.4% of the patients, while ethmoid sinus abnormalities were found in 63.6%. Of the ethmoid abnormalities, 21% were found in the anterior section, 9% in the middle ethmoid, and 8% in the posterior ethmoid. The most common abnormality found was mucosal thickening. Among our cases, 23.4% had septal deviation, which was significantly higher among those with sinusitis (29% versus 19.1% P<0.01).
Of those patients with sinus involvement, 16% were involved in the sphenoid sinus and 5% in the frontal sinus. The results obtained from the patients with sinus abnormality revealed that 85% suffered from cough, nasal obstruction, runny nose, facial pain and post nasal discharge and 24% had been diagnosed with chronic sinusitis by physician.
Conclusion: Our results showed that there was a high rate of incidental abnormalities in the paranasal sinuses that are unrelated to the patient's presenting problems.
Safarpour Gh, Navabi M A, Radmehr H, Salehi M, Soleimani A A, Meisami A P, Sanatkarfar M,
Volume 65, Issue 3 (2 2007)
Abstract
Background: The Fontan operation is the definitive operation for palliation of complex congenital heart disease with single –ventricle physiology. The use of the extra cardiac conduit has recently been gaining popularity. The purpose of this study was to compare the outcomes of extra cardiac conduit Fontan procedure (off-pump technique) and that of traditional technique (lateral tunnel technique) in which cardiopulmonary bypass is routinely used.
Methods: Forty one patients in different age groups underwent extra cardiac conduit Fontan procedure between April 2001 and December 2004. Data were collected from ICU sheets, files and during follow up visits. Under general anesthesia and through median sternotomy, using two temporary decompressing shunts, superior vena cava implanted on right pulmonary artery and a conduit interposed between transected inferior vena cava and main pulmonary artery. Fenestration was done in almost all patients and previous shunts were closed if there were any.
Results: Of our patients, 13 were female and 28 were male. Mean age of the patients was 11.1 years (SD=7.8).In 24.4% of cases Fontan procedure was done as the first palliative surgery and in 75.6% of them there was previous history of palliative procedures. In 6 patients (14.6%) we were constrained to use cardiopulmonary bypass which was predictable or necessary in 50% of cases. There was no reoperation due to post operative bleeding. Two cases suffered from prolonged plural effusion. Our in-hospital mortality was 9.8%. During 2-24 months follow up, we found two cases who were in NYHA functional class II and one case in functional class I.
Conclusion: Extra cardiac conduit Fontan procedure could be used in a safe way. The results of this study were comparable and even in some cases better than that of the traditional technique.
Ansari Sh, Salehi S,
Volume 65, Issue 12 (2 2008)
Abstract
Background: Spider bites are common in most parts of the world. In some areas, where snake or scorpion bites are common, spider bites may not be considered a significant problem by the general public and those who have been bitten by spiders may not go to a hospital. However, significant problems are observed in the victims of certain species of spiders including: widow spider (of the genus Latrodectus), including the black widow and brown spiders (of the genus Loxosceles), such as the brown recluse.
Case: We report a six-year-old boy, admitted to the hospital two weeks after suffering a spider bite. The patient presented with a severe nose bleed, ecchymosis and purpura, as well as anemia, indicating a clotting disorder. Laboratory results revealed abnormal values for prothrombin time (PT) >50 sec, partial thromboplastin time (PTT) >120 min and fibrinogen = 0 mg/dl, whereas factor VIII was normal according to a mixing study, with a normal platelet count of 350,000/µl. The patient was managed with fresh frozen plasma every 12 h, and was discharged one week after hospital admission. At present, the patient is well with more normal laboratory results one month after treatment: PT=13.4 sec, PTT= 34 sec, fibrinogen=105 mg/dl.
Conclusions: Although spider bites are uncommon in Iran, severe systemic reactions may occur in the pediatric population requiring admission to the pediatric intensive care unit. These systemic reactions may include hemolytic anemia coagulopathy and renal failure.
Ghanaati H, Aghaee S, Salehianzandi N, Shakiba M,
Volume 65, Issue 14 (Vol 65, Supplement 2 2008)
Abstract
Background: Among patients who have sensorineural hearing loss of unknown etiology,
diabetes is one of the diseases to be routinely investigated. The relationship between
diabetes mellitus and hearing loss is still controversial. The purpose of this study was to
examine the prevalence of sensorineural hearing loss in patients with insulin-dependent
diabetes mellitus (IDDM) compared to control group.
Methods: In a cross-sectional study pure tone audiometry (PTA) and speech audiometry
was performed in 62 patients with insulin-dependent diabetes mellitus (IDDM), aged under
40 years, and in 62 randomly selected age-matched non-diabetic control subjects. Subjects
with otological and other metabolic diseases were excluded from the study. We applied the
SPSS.10 statistical analysis software Chi-square and student’s test.
Results: Statistical analysis showed that the hearing of the diabetic patients were
significantly worsen than the control subjects. The hearing level tended to be worsen in the
diabetic patients than that in control subjects, but the differences were statistically
significant only at frequencies of 250,500, 4000 and 8000 Hz (p<0.05). There wasn’t
statistical significant difference between sex in two study groups (p>0.05). The mean
duration of diabetes was no statistically significant with hearing loss (p>0.05). The
frequency of complications such as retinopathy, nephropathy, and neuropathy in the
diabetic groups had no correlation with speech threshold (p>0.05). There were no
significant differences between speech reception threshold, speech discrimination score
and acoustic reflex in two groups.
Conclusions: We conclude that type I diabetes mellitus can cause sensorineural hearing
loss.
Rahimi Sharbaf F, Davari Tanha F, Niromansh Sh, Salehi N, Valadan M, Niromand N, Ghafarnejad M,
Volume 66, Issue 3 (2 2008)
Abstract
Background: The aim of this study was to statistically evaluate the hypothesis that the presence of meconium-stained amniotic fluid is associated with postpartum maternal infection.
Methods: This prospective cohort study included 573 term pregnant women in labor, with no other medical problems, that underwent cesarean section for pregnancy termination. Women with prolonged active-phase labor, prolonged rupture of membranes, complicated cesarean section and pre-operative infections were excluded from this study.
The subjects were divided into two groups: 280 women with meconium-stained amniotic fluid (M group), and 293 women with clear amniotic fluid (C group). A comparison was done regarding postpartum fever, endometritis and wound infection between the two groups. Student's t-test and chi square test were used for data analysis, along with linear regression, with p<0.05 indicating significance.
Results: Among the 573 women, a total of 82 women (14%) had fever after cesarean 42 women from the M group, and 40 women from the C group (p= 0.3). Among the 82 women who had fever, 33 women had continuous fever, 6.5% in group M and 2.7% in group C (p<0.05, RR: 1.98, 95% CI 1.3-3.1). Among the 573 women, 4% developed endometritis 5% in group M and 2% in group C (p<0.05, RR: 2.3, 95%, CI 1.3-3.4). Similarly, among the 573 women, a total of 5 women (1%) developed wound infection, 1.7% in group M and 0.68% in group C (p=0.7).
Conclusion: Meconium-stained amniotic fluid is associated with increased postpartum infection independent of other risk factors for infection.
Mirsalehian, Feizabadi, Akbari Nakhjavani, Jabal Ameli, ,
Volume 66, Issue 5 (5 2008)
Abstract
Background: The resistance of Pseudomonas aeruginosa strains to broad spectrum cephalosporins may be mediated by extended spectrum b-lactamases (ESBLs). These enzymes are encoded by different genes located either on chromosome or plasmids. In this study, we determined the antimicrobial resistance patterns of P. aeruginosa isolates and screened for ESBL production.
Methods: After isolation from burn patients in Tehran Hospital, identification of P. aeruginosa isolates were assessed using biochemical tests. We then performed disk agar diffusion (DAD) according to CLSI guidelines to determine the pattern of antimicrobial resistance. The frequency of ESBLs and prevalence of the OXA-10 and PER-1 genes were determined with combined disk and polymerase chain reaction (PCR) methods, respectively.
Results: One hundred strains of P. aeruginosa were isolated. The resistance of these strains to cephpodoxime, aztreonam, ciprofloxacin, ofloxacin, ceftazidime, cefepime, imipenem, meropenem, cefotaxime, levofloxacin, piperacilin- tazobactam and ceftriaxon was 100%, 90%, 83%, 92%, 85%, 88%, 63%, 66%, 98%, 89%, 70% and 91%, respectively. Of these, 40 strains (40%) were ESBL positive, 29 strains (29%) were OXA-10 positive and 18 strains (18%) were PER-1 positive.
Conclusion: Our results confirm the need for proper antimicrobial therapy in burn hospitals, considering the resistance pattern and frequency of strains producing ESBLs and the presence of the OXA-10 and PER-1 genes. Since an increase in the prevalence of ESBL in P. aeruginosa strains might lead to the transfer of these ESBL genes to other gram-negative bacteria, we recommend the use of appropriate drugs, especially cephalosporins, in burn hospitals.
Mirsalehian A, Jabalameli F, Mirafshar Sm, Bazarjani F, Gorjipor A, Goli H.r,
Volume 66, Issue 6 (5 2008)
Abstract
Comparing Intensity Elicited Maximum Reflex Amplitude Between Noise Induced Hearing Loss & Acoustic Trauma at 1kHZ, Contralaterally, and Investigate Relationship Between Amplitude and Hearing Impairment
Noyan Ashraf Ma, Salehi S, Peiravy Sereshke H, Ahmadpoor Harsini M,
Volume 66, Issue 10 (4 2009)
Abstract
Background: Acute hepatitis is upon serious complications of halothane usage, can be associated with 50% mortality in severe cases. Use of halothane as inhalational anesthetic or use of it for maintenance of anesthesia is restricted/ prohibited in USA and most European countries. The occurrence of icterus and elevated liver enzymes after halothane anesthesia may be due to the drug induced hepatitis.
Case report: we report a 28 year old woman with acute hepatitis after cesarean section under halothane anesthesia, fortunately discharged to home 40 days after that. Other causes of hepatitis became role out in the patient.
Results: The usage of halothane should be restricted/ prohibited in our country because of its potentially serious and fatal complications and so existence of more safe but expensive alternatives.
Radmehr H, Tatari H, Salehi M, Bakhshande A,
Volume 66, Issue 12 (5 2009)
Abstract
Background: The usage of pericardium of patient himself, for support of anastomosis lines may carry benefits in patients undergoing aortic valve replacement with pulmonary autograft (Ross). The aim of the present study was to compare the short term results of aortic valve replacement with pulmonary autograft with routine and offered methods.
Methods: In a non-randomized clinical trial, 64 patients who referred to cardiac surgery ward of Imam Khomeini hospital Tehran Iran from December 2002 to December 2006 for aortic valve replacement with pulmonary autograft with two different methods. In the first two years of this study all of the patients were operated with routine procedure (group A, n=28) and during the next two years, all of them were operated with authors' offered method in which the patient`s pericardium was used for support of anastomosis lines (group B, n=36). Some of clinical parameters and outcome were compared between two groups.
Results: There were no significant differences between mean of age, sex, pathology, preoperative and postoperative EF in two groups. In group B, the mean pump time was significantly lower than group A (144.09±26 vs. 179.64±25 min). The mean Cross-clamp time was significantly lower in group B (118.5±22 vs. 136.93±19 min) Need for blood transfusion in ICU was significantly lower in group B (35.71% vs. 68.57%). Mean ICU Stay and Postoperative Hospital Stay were significantly lower in group B (1.3±0.3 vs. 1.9±0.7 and 5.2±0.9 vs. 5.9±1.5 days respectively). Overall mortality was four death (6.25%) which was not significant between two groups.
Conclusions: The usage of patient's pericardium for support of anastomosis lines in patients undergoing aortic root replacement with pulmonary autograft carry advantages to routine procedure and its utilization is advocated in other centers.
Massoud A, Sheikh Bahai N, Massoud M, Salehi E, Massoud Ah, Vojgani M, Rajab A,
Volume 67, Issue 1 (4 2009)
Abstract
Background: Type I diabetes is an autoimmune disease characterized by T-cell Mediated destruction of pancreatic β-cells. A variety of environmental, genetic and Immunologic factors are involved in the development of the disease. IL18 is a cytokine secreted by macrophage and monocytes and play an important role in the pathogenesis of diabetes Type I through inducing IFN-γ production. It is shown to be strongly associated with the development of diabetes in NOD mice. It is also shown to have increased level in the subclinical stage of diabetes mellitus (type 1). Genetic polymorphisms in the IL-18 gene influence production and secretion of cytokine and are considered as a risk factor in auto-Immune diseases.
Methods: In this case control study, 75 type I diabetic patients and 88 healthy controls studied for polymorphism at positions -137 and -607. DNA extraction from the whole blood was performed according to the standardized method and polymorphism was determines by SSP-PCR. Data were analyzed by SPSS-12 using Chi-Square Test with 95% Confidence interval.
Results: A statistical significant difference in GG genotype (53%) and CC genotype (16%) at the -137 position of IL18 gene was found, as compared to the control subjects (p=0.000) whereas we have not shown any statistical significance at the position -607.
Conclusion: IL18 is a key cytokine secreted by macrophages and monocytes and stimulate the Th1 lymphocyte. This cytokine can activate cytotoxic T lymphocytes (CTL) and destroy the pancreatic β cell. Our results show that the frequency of GG and CC genotypes at the position -137 may be associated with susceptibility to diabetes.
Eshraghi S, Salehipour Z, Pourmand Mr, Rahimi Forushani A, Zahraei Salehi Mt, Agha Amiri S, Bakhtyari R, Abedi Mohtasab Tp, Mardani N, Seyed Amiri S, Soltan Dallal Mm,
Volume 67, Issue 7 (7 2009)
Abstract
Background: Staphylococcus aureus is a major foodborne pathogen throughout the world. Enterotoxins and toxic shock syndrome toxin-1 are important virulence factors and as pyrogenic toxin superantigens have profound effects on the ir host. Thus circulation of TSST1 producing S.aureus among people and food chain is a worrying issue. The present paper was conducted to study Prevalence of tst, entC, entA and entA/C genes in staphylococcus aureus strains isolated from different foods.
Methods: Over 1040 food samples have been analyzed differentially according to Iran national standard (number= 1194) for S.aureus identification. After DNA extraction, PCR reactions were carried out by reference strain as positive control, adequate primers.
Results: At present study, prevalence of foodstuffs contaminated by S.aureus isolates was about 9.5% (100 strains). Of 25% of isolates producing entC, 28% (seven strains) had tst gene at the same time and of 8% of isolates producing entA, 12.5% (one strain) were positive for tst genes simultaneously. Altogether of 9% isolates producing combination of entC and entA, 44.4% (four strains) were also producer of tst gene.
Conclusion: Prevalence of TSST1 producing strains in combination with enterotoxin genes is considerable especially with entC and A plus C. On the other hand, circulation of these isolates in humans, animals, foods and environment has hazardous effect for general public health.
Saeed Eshraghi, Mohammad Mehdi Soltan Dalall, Fatemeh Fardsanei, Taghi Zahraii Salehi, Reza Ranjbar, Bahram Nikmanesh, Farzaneh Aminharati, Zahra Abdosamadi, Abolfazl Akbari,
Volume 67, Issue 12 (6 2010)
Abstract
Normal
0
false
false
false
EN-US
X-NONE
AR-SA
MicrosoftInternetExplorer4
Background: Salmonellosis is a bacterial gasteroenteritis
caused by different serovars of Salmonella. In
the recent years, Salmonella
enterica subspecies. Enterica
serovar enteritidis is a major cause of gastroenteritis and food poisoning in
the worldwide. Different
genus of salmonella is increasingly being resistant to common antibiotics. The
aim of this study was to determine the frequency and the antibiotic resistance
patterns of Salmonella enterica isolated from medical health centers in Tehran.
Methods: In this descriptive cross- sectional study from April
to December 2008, 1950
fecal specimens from children with diarrhea were cultivated to identify Salmonella
enteritidis. We
used Clinical and Laboratory Standard
Institute (CLSI) protocol
to determine resistance patern of the isolates to 16
different antibiotics.
Results: In this study, out of 26
isolates 14(54%) were S.
enteritidis, 2(8%) S.
para B, 6(23%)
S. para C,
3(11%) S. arizonea and 1(4%) S. para A.
all of them were sensitive to ceftazidime, cephalexin, cefotaxime, ceftiraxone,
ciprofloxacin, imipenem, meropenem, gentamicin and colistin sulfate. All
of the isolates were resistant to nitrofurantoin whereas 71.4%
of them were resistant to nalidixic acid.
Conclusions: The
most prevalent isolated salmonella was S.enteritidis. According
to high sensivity of these isolates to cephalosporin and flourqouinolon family,
they can used as infective treatment for salmonellosis infections.
Mehrnaz Mesdaghi, Mohammad Vodjgani, Eisa Salehi, Jamshid Hadjati, Abdolfattah Sarrafnejad, Masoud Movahedi, Farideh Berjisian, Tahereh Shahrestani,
Volume 68, Issue 1 (4 2010)
Abstract
Normal
0
false
false
false
EN-US
X-NONE
AR-SA
MicrosoftInternetExplorer4
Background: Allergic rhinitis is a common disorder with great morbidity. Its
prevalence has increased during recent years, therefore attracting attentions
to its mechanisms. Type 2 cytokines play a major role in allergies.
It has been proposed that Natural killer (NK) cells may
be able to produce type 2 cytokines. This study was done to
evaluate NK cells number and subtypes in patients
with allergic rhinitis, comparing healthy subjects.
Methods: In a case control study, patients with allergic rhinitis
were compared to healthy non-atopic subjects. Allergic rhinitis was diagnosed
according to ARIA guidelines. NK cells quantity was studied by staining of peripheral blood mono
nuclear cells with anti-CD16-FITC and anti-CD56-PE
and evaluated by two color flowcytometry. Intracellular cytokines were evaluated by tri-color flowcytometry.
NK cells were separated by magnetic beads,
and cultured for 72 hours. Secretion of IL-4, IL-5, IL-10, IL-13, and IFN-γ was measured by ELISA, in stimulated and unstimulated conditions.
Results: Patients had more CD16+ CD56+ NK cells than control group. IL-4+ NK cells were significantly higher in patients (p<0.001), but the number of IFN-γ+ NK cells was not different. Cytokine secretion of NK cells was similar in case and control groups. Although IL-13 level after stimulation seemed higher in patients, the difference
was not significant.
Conclusion: NK cells number is increased in patients with allergic rhinitis and a
considerable number of them produce IL-4.
Tanaray B, Eslami M, Salehi M, Jahanzad I, Emami M,
Volume 68, Issue 7 (7 2010)
Abstract
Background: Studies of the association between post operative AF and Plasma level of NT- Pro BNP have reported conflicting findings. The aim of the present study was evaluation of the association between post coronary bypass graft- Atrial Fibrillation (AF) and Plasma level of NT- ProBNP as an independent risk factor of AF development in patients undergoing coronary artery bypass graft.
Methods: In a cohort study, 79 patients with sinus rhythm who admitted in Imam Khomeini Hospital in Tehran, Iran, during February 2009 and February 2010 for CABG are included the study and followed for developing post operative AF rhythm.
Results: Post operative AF was found in 17.7% of patients. The peak time from the operation to the first AF episode was in second post op day in ten patients (71.4%). The serum level of ProBNP in patients with AF was significantly higher (1624± 647 versus 221± 238 pg/ml, p< 0/0001). Increased age, Increased LA size and high plasma level of ProBNP were associated with increased risk for post op AF. After adjustment of risk factors, plasma level of ProBNP was the most important risk factor with odds ratio of 15.34 with CI 95% 1.77-132.95 and then LA diameter with odds ratio of 6.11 with CI 95% 0.99-37.42 was independently correlated with post op AF. Correlation between plasma level of ProBNP with age and LA size was seen too (LA size r = 0.0281, p= 0.012). Between age and ProBNP (r= 0.337, p= 0.002). The best cut off point for plasma ProBNP as a predictor of post op AF was 854 pg/ml.
Conclusion: Increased level of preoperative ProBNP levels could be an independent predictor of post operative Atrial Fibrillation.
