PurposeThe objective of this study was to investigate the effect of a dietary flavonoid, kaempferol, which has been shown to possess antiallergic, anti-inflammatory, anticarcinogenic, and antioxidant activities on the periodontium by histomorphometric analysis and on gingival tissue matrix metalloproteinase-1 (MMP-1), MMP-8, and tissue inhibitor of metalloproteinase-2 (TIMP-2) by biochemical analysis of rats after experimental periodontitis induction.MethodsSixty Wistar rats were randomly divided into six groups of ten rats each, and silk ligatures were placed around the cervical area of the mandibular first molars for 15 days, except in the healthy control rats. In the experimental periodontitis groups, systemic kaempferol (10 mg/kg/2d) and saline were administered by oral gavage at two different periods (with and without the presence of dental biofilm) to all rats except for the ten non-medicated rats. Alveolar bone area, alveolar bone level, and attachment level were determined by histomorphometric analysis, and gingival tissue levels of MMP-1, MMP-8, and TIMP-2 were detected by biochemical analysis.ResultsSignificantly greater bone area and significantly less alveolar bone and attachment loss were observed in the kaempferol application groups compared to the control groups (P<0.05). In addition, gingival tissue MMP-1 and -8 levels were significantly lower in the kaempferol application groups compared to the control groups and the periodontitis group (P<0.001). There were no statistically significant differences in TIMP-2 levels between the kaempferol and saline application groups (P>0.05).ConclusionsKaempferol application may be useful in decreasing alveolar bone resorption, attachment loss, and MMP-1 and -8 production in experimental periodontitis.

In conclusion, the oxidative stress caused by formaldehyde exposure was reduced with the application of curcumin.

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Background: Chemerin is a recently discovered adipokine that plays a role in adipocyte metabolism. It is a novel chemoattractant adipokine whose expression and secretion are increased by adipogenesis. Aims: To evaluate the effects of probiotic supplementation on chemerin level, inflammation, and metabolic syndrome components in obese Wistar rats. Study Design: Animal experiment. Methods: We divided the experimental animals into three groups, each consisting of eight rats. Group 1 was the control group. Group 2 was the experimentally obese group, in which rats were fed with a high-fat diet. Group 3 was the obese intervention group, in which rats were supplemented with probiotics after obesity induction. Results: At the end of the study, a statistically significant difference was found between the groups in final weights, weight changes, and body mass index values (p<0.05). Weight gain was 34.12±3.70 g in group 3 post-probiotic supplementation and 53.25±8.35 g in group 2 (p<0.05). Obese rats showed increased levels of fasting plasma glucose, insulin, insulin resistance (homeostatic model assessment-insulin resistance), total cholesterol, low-density lipoprotein cholesterol, inflammatory markers, and leptin compared to those in the control group. Chemerin levels were 14.31±13.34 ng/mL in group 2 and 2.67±2.42 ng/mL in group 3 (p<0.05). Conclusion: Probiotic supplementation (group 3) reduced weight gain, and there were positive effects on the levels of fasting plasma glucose, insulin, homeostatic model assessment-insulin resistance, triglycerides, inflammatory markers, leptin, and chemerin.

Abstract. Staphylococcus aureus is one of the most important etiologic agents of ovine mastitis. To develop effective control measures for mastitis, it is important to type S. aureus strains that have considerable genetic heterogeneity. In the current study, 47 S. aureus strains isolated from ovine mastitis were typed by polymerase chain reaction (PCR) based on coagulase (coa) and protein A (spa) polymorphisms and by pulsedfield gel electrophoresis (PFGE). Eight different coa types and 4 spa types were identified by PCR. While the most prevalent coa type was CG2 (42.56%), the spa types S4 and S1 were the most commonly observed (44.68% and 38.29%, respectively). Nineteen different pulsotypes were identified, and 12 of these were represented by a single isolate. Pulsotypes J and K were predominant and each represented 9 isolates (19.14%). All isolates belonging to J and K pulsotypes were CG2. Although all 9 isolates belonging to the J pulsotype were S4, all isolates in the K pulsotype were S1. While PFGE was found to be the best discriminatory technique for distinguishing strains, coa and spa types were found to be in correlation with PFGE types and can be used for quick, preliminary epidemiologic studies for detecting strains that may cause mastitis.

The aim of the study was to determine the biofilm production, genotypes, antibiotics resistance patterns and antibiotypes of 82 Enterococcus faecium strains isolated from dog, cat and human. Of examined strains biofilm production detected totally 72 (87.8%) in 35 (97.2%) dog, 22 (78.6%) cat and 15 (83.3%) human isolates. Genotyping of isolates was performed by RAPD-PCR and 16, 3 and 4 different profiles were detected in dog, cat and human isolates, respectively. In total of 98.8% with a maximum resistance to nalidixic acid and 4.9% with the lowest resistance to vancomycin was found. None of vancomycin resistance 4 isolates, vancomycin resistance genes (vanA, vanB, vanC1/C2 or vanD) has been detected. Antibiotyping of isolates was performed with UPGMA and 5 groups of dog, 10 groups of cat and 7 groups of human isolates were determined. The results from this study indicate that healthy dogs and cats are a source of Antibiotic resistant enterococci and may act as a reservoir of resistance that can be transferred from pets to people. Also our results demonstrated that the phenotype and genotype patterns found among enterococci strains from dogs, cats and humans were heterogeneous. (vanA, vanB, vanC1/2 veya vanD) saptanamadı. UPGMA ile yapılan antibiyotiplendirmede köpek izolatları 5, kedi izolatları 10 ve insan izolatları da 7 grup altında toplandı. Çalışma sonuçları sağlıklı köpek ve kedilerin antibiyotiklere dirençli enterokoklar için kaynak oluşturabileceğini ve insanlara direncin aktarılmasında rezervuar olarak rol oynayabileceğini göstermiştir. Ayrıca, elde edilen sonuçlarla köpek, kedi ve insanlar orijinli enterokoklarda bulunan fenotipik ve genotipik patternlerin heterojen olduğu belirlenmiştir. Keywords

Background: Intestinal microbiota play a role in the health and performance of athletes, and can be influenced by probiotics. Thus, in this study, we aimed to investigate the effect of the use of probiotics combined with chronic exercise on the thiol/disulfide homeostasis, a novel marker of oxidative stress. Methods: Male Wistar rats were randomly divided into four groups: control (Cn), exercise (Ex), probiotics (P), and probiotics + exercise (PEx). A capsule containing 6 × 108 CFU of L. rhamnosus, L. paracasei, L. acidophilus, and B. lactis was given daily for eight weeks to all the experimental animals. The total thiol (TT, μmol/L) and native thiol (NT, μmol/L) concentrations were measured to determine the oxidative stress parameters. The dynamic disulfide (DD, %), reduced thiol (RT, %), oxidized thiol (OT, %), and thiol oxidation reduction (TOR, %) ratios were analyzed. Results: The TT level was found to be significantly higher in the Ex group (p = 0.047, η2 = 0.259). The DD level, a marker of oxidation, was significantly lower in the PEx group (p = 0.042, η2 = 0.266); the highest value of this parameter was found in the Ex group. The use of probiotics alone had no effect on thiol/disulfide homeostasis. Conclusions: We showed, for the first time, that probiotics administered “with exercise” decreased dynamic disulfide and significantly reduced oxidative damage. Therefore, we speculate that the use of probiotics in sports involving intense exercise might be beneficial to reduce oxidative stress.

Chemerin is a new chemotactic protein that recently joined the adipokines family. It has been shown to play a role in adipogenesis and energy metabolism, including its role on obesity, Type 2 Diabetes Mellitus (T2DM), metabolic syndrome and cardiovascular diseases. Probiotics may play role in the prevention of obesity by various mechanisms and treatment of many diseases such as T2DM. In this study, we aimed to evaluate the effects of probiotic supplementation of chemerin adipokines on serum levels and obesity markers in obese animal models. For this purpose 3 groups of experimental animals were formed. In the obtained serum samples, the effects of probiotic supplementation on chemerin and leptin level which are indicators of obesity will be examined. Weights of all the rats in the groups were weighed each week to monitor the obesity. The weight gain in the group fed with probiotic supplementation was 10,00±27,2 g for 4 weeks and the weight gain for the group fed with high fat diet was 26,200±7,085 g (p<0.05). After 8 weeks of feding the changes of BMI values of the rats were found to be statistically significant (p<0.05). There was no significant difference between the leptin values of the groups, but the difference between the mean values of the chemerin values after 12 weeks of feeding was found to be statistically significant (p <0.05). As a result; this study showed that obese rats reduced the weight gain of probiotic supplementation without calorie restriction, positive effects on BMI and chemerin adipokine serum levels.