Gyllingforeman1848

A routine phenotypic test has not been recommended for the detection of metallo-β-lactamases (MBLs) producing

species such as

. The current study was conducted to compare the 2-mercaptopropionic acid (2-MPA) phenotypic method and ertapenem non-susceptibility test with polymerase chain reaction in predicting the production of MBLs in clinical isolates of

.

Antimicrobial susceptibility test for beta-lactam antibiotics were performed by disk diffusion method. All isolates which showed inhibition zones of ≤ 22 mm for CAZ and ≤ 27 mm for CTX were considered potential MBLs producing isolates. The production of MBLs was confirmed using 2-MPA compound. Also, susceptibility to ertapenem was evaluated in all isolates. Conventional PCR was performed to detect

IMP-1 and/or

NDM-1 genes in all potential MBLs producing

isolates.

Of 259, 138 (53.3%) isolates were potential MBLs producing bacteria. One hundred and fifteen out of 138 (83.3%) isolates were susceptible to ertapenem. MBLs production was confirmed in 75/138 (54.4%) isolates by 2-MPA phenotypic method. The

NDM-1 or/and

IMP-1 genes were found in 30/75(40%) and 39/115(33.9%) isolates which were confirmed by 2-MPA and were susceptible to ertapenem, respectively. The sensitivity of 2-MPA method and ertapenem non-susceptibility test compared with PCR were 65.2% and 15.2%, and the specificity was 52.1% versus 82.6%, respectively.

This study demonstrated that the 2-MPA phenotypic method does not have acceptable sensitivity and specificity in comparison with PCR, but its results are more reliable for the detection of MBL producing

isolates compared with non-susceptibility to ertapenem.

This study demonstrated that the 2-MPA phenotypic method does not have acceptable sensitivity and specificity in comparison with PCR, but its results are more reliable for the detection of MBL producing E. coli isolates compared with non-susceptibility to ertapenem.

Nowadays, radiotherapy is used effectively for the treatment of head and neck cancers. Mucositis is one of the most important side effects of radiotherapy. Radio-protective agents protect tissues and cells against the adverse effects due to ionizing radiation and cleave radiation-induced free radicals. Lycopene as a potent antioxidant protects cells against oxidative damage by free radical-scavenging. The present study investigated the antioxidant effect of lycopene on oral mucosa of irradiated rats.

In this experimental animal study, 28 rats were placed in four groups as follows treated with 50 mg /kg of lycopene (L50), solvent+irradiation (SR), 25 mg / kg of lycopene+irradiation (LR25), and 50 mg / kg of lycopene+irradiation (LR50). The rats received lycopene intraperitoneally. On the irradiation day (day 0) and tenth day of radiation, blood samples were taken from the animals for FRAP and TBARS tests.

The results showed that the LR50 group did not show mucositis higher than grade 2. There was a significant difference (p<0.05) between SR and the L50 regarding the severity of mucositis. In addition, L50 showed higher antioxidant activity and lower peroxidation than SR.

Lycopene reduced the severity of mucositis. Therefore, it can be used as a potential and promising nutritional substance to prevent radiotherapy complications, especially in the treatment of head and neck cancers. However, further research is necessary to confirm these results.

Lycopene reduced the severity of mucositis. Therefore, it can be used as a potential and promising nutritional substance to prevent radiotherapy complications, especially in the treatment of head and neck cancers. However, further research is necessary to confirm these results.

Acute radiation proctitis (ARP) is a usual adverse effect in patients undergoing pelvic radiotherapy. The symptoms include diarrhea, rectal blood or mucus discharge, fecal urgency and tenesmus with pain. Sucralfate, an aluminum-based salt of sucrose octasulfate, is a cytoprotective agent that forms a coating barrier at injured sites by adhering to mucoproteins. It has been used in topical management of a wide variety of local lesion. This study was designed to evaluate the preventive effect of rectal sucralfate on acute radiotherapy induced proctitis.

Seven percent sucralfate ointment was prepared for topical use. Drug quantification, chemical stability and microbial limit tests were performed carefully. In this randomized double blind placebo controlled trial, fifty-seven patients with pelvic malignancies undergoing radiotherapy were allocated to receive either 1 g of sucralfate or 1 g of placebo, given as a twice daily ointment, one day before and during radiotherapy for six weeks. The eligible patients were evaluated based on RTOG acute toxicity criteria and the following ARP symptoms weekly rectal hemorrhage, diarrhea, rectal pain, and fecal urgency. selleck chemical The influence of symptoms on lifestyle was also recorded weekly.

Acute proctitis was significantly less prevalent in patients in the sucralfate group. The incidence of rectal bleeding (P=0.003), diarrhea (P=0.002), rectal pain (P=<0.001) and fecal urgency (P=0.002) was significantly less common in the sucralfate group. No statistical significant difference was observed for radiotherapy induced cystitis in the placebo and sucralfate groups (P=0.27).

This study suggests that sucralfate7% ointment reduces the incidence of symptoms associated with acute radiation proctitis.

This study suggests that sucralfate7% ointment reduces the incidence of symptoms associated with acute radiation proctitis.

Chemotherapy for treatment of breast cancer uses some drugs to target and destroy the cancer cells. However, most of antineoplastic treatments are non-specific and the innate cells will be damaged. In this study, the effect of adriamycin/cytoxan (AC) chemotherapy on the status of antioxidant enzymes and Se levels in breast cancer patients was evaluated.

A prospective study, includes 50 breast cancer patients treated with AC chemotherapy (adriamycin 60 mg/m

, cytoxan 600 mg/m

) from July 2016 until March 2017. First sampling was obtained before chemotherapy and the second, after 3 cycles of the intervention. Antioxidant enzyme activities (catalase, glutathione peroxidase, glutathione reductase and superoxide dismutase) and selenium (Se) levels in serum were measured by spectrophotometry and atomic absorption methods, respectively. Age, BMI, familial history, stage and grade of cancer, tumor site, type of surgery, estrogen, progesterone and HER2 receptors, were recorded from each patient. Paired-t test was employed for comparing the data before and after chemotherapy. Age and disease stages were compared by independent t-test.

After 3 courses of chemotherapy, a significant decrease was observed in antioxidant enzymes and also Se (p<0.001). These studied indices were not significant in different age groups (≤48, >48) and stages of disease (early, advanced).

Ourfindingsshowthat the AC chemotherapy in the breast cancer patients result in drastic changes in oxidant/antioxidant system of the body, especially reduction of Se levels and antioxidant enzymes activities. However, it seems that these changes are not necessarily dependent on the age and disease stage.

Our findings show that the AC chemotherapy in the breast cancer patients result in drastic changes in oxidant/antioxidant system of the body, especially reduction of Se levels and antioxidant enzymes activities. However, it seems that these changes are not necessarily dependent on the age and disease stage.

Stroke is known to be the third most prominent cause of death in the developing countries and the most common debilitating neurologic disease. This study aimed to investigate the association of platelet count (PC) and mean platelet volume (MPV) index with various stroke types.

This cross-sectional study wascarriedout on patients over the age of 18 years who presented with signs and symptoms of the first acute stroke. Exclusion criteria were underlying chronic liver or renal disease and the time more than 6 hours from symptom initiation, hematological and infectious disorders in patients. After recording of demographic data, a complete blood cell count (CBC) test was performed.

From 150 patients, who enrolled in the study, 54.7% of patients were males. The initial brain CT scan was normal in 13 (8.7%) patients and showed evidence of brain infarction and intracranial hemorrhage in 84 (56%) and 53 (35.3%) patients respectively. Patients with intracranial hemorrhage had significantly higher mean of MPV index than the patients with normal brain-CT scan and patients with evidence of brain infarction (p<0.001).

The MVP index can be a predictor of the type of hemorrhagic or ischemic finding in emergency CT scan in stroke patients. This relationship may help to better understand the physiopathologic role of platelets in the development of stroke (hemorrhagic or ischemic), but will not replace cerebral computed tomography to diagnose the type of stroke, or it may not initiate treatment for hemorrhagic stroke.

The MVP index can be a predictor of the type of hemorrhagic or ischemic finding in emergency CT scan in stroke patients. This relationship may help to better understand the physiopathologic role of platelets in the development of stroke (hemorrhagic or ischemic), but will not replace cerebral computed tomography to diagnose the type of stroke, or it may not initiate treatment for hemorrhagic stroke.

The decisive etiology of oral squamous cell carcinoma (OSCC) is still ambiguous, but we recognize the contribution of genetic aberration and environmental agents due to OSCC initiation. In the current study, we elucidate the potential impact of EGFR gene polymorphisms on the risk of OSCC in Southeast Iran.

Forty-eight OSCC patients along with 100 healthy volunteers were included. Three polymorphisms of the EGFR gene (rs2227983, rs2293347 and rs2227984) were genotype by Tetra-ARMS PCR. Data were analyzed with a chi-square test, and p<0.05 was considered significant.

In rs2227983, the frequency of AG and GG genotypes were 62.5%, 37.5% in cases and 42%, 57% in the control group (P=0.02, OR=2.3) and also A allele frequency was 31.3% in the case and 22% in control (P=0.08, OR=0.62). AG + AA genotype frequency was 62.5% and 43% in case and control, respectively (p=0.03, OR=2.2). In rs2227984 and rs2293347, no statistical differences showed in the distribution of genotypes between the case and control group. Also the majority of the OSCC belonged to grade I (43.8%).

The present investigation indicated that rs2227983 polymorphism might contribute to OSCC susceptibility in Iran's southeast population. Although, with the inconsistent interpretation mentioned due to the various geographical residencies and populations, more studies of significant populations are suggested to validate our findings.

The present investigation indicated that rs2227983 polymorphism might contribute to OSCC susceptibility in Iran's southeast population. Although, with the inconsistent interpretation mentioned due to the various geographical residencies and populations, more studies of significant populations are suggested to validate our findings.