Je intraartikulární podávání antibiotik efektivní v léčbě infekce způsobené methicillin-rezistentním stafylokokem?

PURPOSE OF THE STUDY Septic arthritis is an infection of joints caused by a pathogenic microorganism. Septic arthritis has a mortality rate of 11-40% when it's not treated properly. The mortality rate with methicillin-sensitive Staphylococcus aureus (MSSA)is 5-7%, while the rate with methicillin-resistant Staphylococcus aureus (MRSA)is 13-20%. The aim of this study is to evaluate the effects of intraarticular vancomycin and teicoplanin on joint cartilage in in vivo settings and its utility in routine MRSA treatment. MATERIALS AND METHODS In our study, 35 male Sprague-Dawley rats aged 28 days were used. Rats were obtained from the Regenerative and Restorative Medicine Research Center (REMER) of Istanbul Medipol University. Rats were randomly divided into 5 groups each containing 7 rats. Joint injections were administered with isoflurane analgesia every day at 6 am. Three rats (15 rats) from each group were sacrified in seventh day and evaluated immunohistologically to evaluate acute healing in articular cartilage. All remaining rats were sacrificed on day 28 and their knees were evaluated by immunohistochemical examination. RESULTS In our study, there were no complications in any rat during injection and the study period. Hematoxylin eosin (H & E) histological staining for evaluating cartilage healing and healing levels did not show statistically significant differences between the groups at first week (p > 0.05). Matrix metalloproteinase-13 (MMP-13) staining did not show any statistically significant difference between the groups. (p > 0.05). DISCUSSION MRSAseptic arthritis, diagnosed for the first time in 1960, has recently been responsible for 6-22% of all septic arthritis and is increasing day by day. The use of systemic vancomycin or teicoplanin is the first-line treatment method in MRSA septic arthritis. Serum levels reach the desired level, especially with intravenous infusion dose. On the other hand, it has been shown that intraarticular concentration does not reach a sufficient level in studies conducted. The use of intraarticular antibiotics during treatment can lead to more effective and early disease control by turning this negative situation into favor of the patient. As a result, intraarticular vancomycin and teicoplanin maximale tolerable and maintenance doses can be safely used beside surgery and intravenous antibiotics to increase efficacy of treatment, reduction of recurrence rates and reduction of mortality in MRSAseptic arthritis. CONCLUSIONS Intraarticular vancomycin and teicoplanin maximale tolerable and maintenance doses can be safely used beside surgery and intravenous antibiotics to increase efficacy of treatment, reduction of recurrence rates and reduction of mortality in MRSA septic arthritis

Can intra-articular 1 alpha, 25-dihydroxyvitamin D3 administration be therapeutical in joint cartilage damage?

INTRODUCTION Vitamin D-deficiency is known to cause nerve conduction impairments, cancer and chronic diseases, as well as the pathogenesis of osteoarthritis. Our goal with this study is to evaluate the cartilage healing by applying intraarticular 1 alpha, 25 (OH) 2D3 at different doses in rats with normal vitamin D levels and metabolism, which we made focal chondral damage model in the knee joint. MATERIAL AND METHODS 35 male Sprague-Dawley rats aged 20-24 weeks were used in our study. Both knees of rats were cartilage defected surgically on day 0. Joint injections performed at 06:00 am on 0th and 2nd days and after second injection others performed on days 9-16 and 23 following a weekly period. RESULTS In the fourth week, hematoxylin eosin staining measurements showed statistically significant difference according to the groups (p < 0.01) Metalloproteinase-13 (MMP-13) in histological staining for evaluating cartilage healing and healing levels showed statistically significant differences between the groups at first week and fourth week (p < 0.05). DISCUSSION Vitamin D, which affects many tissues through its receptors, is believed to be chondroprotective and neuroprotective by decreasing the expression of MMP in cartilage fibroblast, macrophage, lymphocyte through its intracellular receptors. To the best of our knowledge, this is the first study known to be intraarticular use of 1 alpha, 25-dihydroxyvitamin D3. Our study has been found to be safe and successful in terms of weight, systemic PTH and 1 alpha, 25-dihydroxyvitamin D3 levels in rats during treatment as well as better healing of cartilage damage

Investigation the effects of cilostazol and rosuvastatin on kidney and heart: An experimental acute kidney and heart injury model

Amaç: Bu çalışmada, deneysel bir modelde ameliyat öncesi silostazol ve rosuvastatin tedavisinin böbrek iskemi/reperfüzyon hasarına olan etkisi ve uzak kalp reperfüzyon hasarı üzerine olan etkisi araştırıldı.Ça lış ma pla nı: Toplam 35 adet dişi Sprague-Dawley sıçan rastgele beş gruba ayrıldı (n=7). Median laparotomi yapılarak, her iki böbreğe 45 dakika süren iskemi uygulandı. Cerrahi girişimin üç gün öncesinden başlayarak oral tedavi uygulandı (20 mg/kg silostazol, 10 mg/kg rosuvastatin ve 20 mg/kg cilostazol + 10 mg/kg rosuvastatin). Cerrahi girişimden bir gün sonra ise kan örnekleri ve böbrek ve kalp doku örnekleri alındı.Bul gu lar: değerlendirmesinde tümör nekroz faktör-alfa ve hipoksi ile indüklenebilir faktör-1 alfa immünreaktivitesinin silostazol, rosuvastatin ve silostazol + rosuvastatin grubunda, iskemi/reperfüzyon hasarı grubuna kıyasla anlamlı düzeyde daha düşük olduğu tespit edildi (p<0.05). Kalp dokularının immünhistokimyasal değerlendirmesinde tümör nekroz faktör-alfa immünreaktivitesi, iskemi/reperfüzyon hasarı grubuna kıyasla silostazol grubunda anlamlı düzeyde daha düşüktü. Hipoksi ile indüklenebilir faktör-1 alfa immünreaktivitesi, silostazol, rosuvastatin ve silostazol + rosuvastatin grubunda, iskemi/reperfüzyon hasarı grubuna kıyasla, anlamlı düzeyde daha düşüktü (p<0.05). İskemi/reperfüzyon hasarı grubuna kıyasla, silostazol, rosuvastatin ve silostazol + rosuvastatin grubunda, serum üre, kreatinin, kreatin kinaz-kas ve beyin ve troponin düzeyleri anlamlı düzeyde daha düşüktü (p<0.05).So nuç: Silostazol ve rosuvastatinin böbrek iskemi/reperfüzyon ve uzak kardiyak reperfüzyon hasarı üzerinde koruyucu etkileri olmakla birlikte, bu etki kombine tedaviye kıyasla silostazol tedavisi ile artabilir.Background: In this study, we aimed to assess the effects of preoperative cilostazol and rosuvastatin therapy on kidney ischemia/reperfusion injury and remote cardiac reperfusion injury in an experimental model.Methods: A total of 35 female Sprague-Dawley rats were randomly divided into five groups (n=7). Median laparotomy and a 45-min bilateral kidney ischemia were performed. Oral medications were administered three days before the surgical intervention (20 mg/kg cilostazol, 10 mg/kg rosuvastatin and 20 mg/kg cilostazol + 10 mg/kg rosuvastatin). Blood samples and kidney and heart tissue samples were extracted one day after surgery.Results: Immunohistochemical examination of the kidney samples revealed that tumor necrosis factor-alpha and hypoxia-inducible factor-1 alpha immunoreactivities in the cilostazol, rosuvastatin, and cilostazol + rosuvastatin groups were found to be significantly lower, compared to ischemia/reperfusion injury group (p&lt;0.05). Immunohistochemical examination of the heart samples revealed that tumor necrosis factor-alpha immunoreactivity was significantly lower in the cilostazol group, compared to ischemia/reperfusion injury group. Hypoxia-inducible factor-1 alpha immunoreactivities were significantly lower in the cilostazol, rosuvastatin, and cilostazol + rosuvastatin groups, compared to ischemia/reperfusion injury group (p&lt;0.05). Serum urea, creatinine, creatine kinasemuscle and brain, and troponin levels were significantly lower in the cilostazol, rosuvastatin, and cilostazol + rosuvastatin groups, compared to ischemia/reperfusion injury group (p&lt;0.05).Conclusion: Cilostazol and rosuvastatin have protective effects on kidney ischemia/reperfusion and remote cardiac reperfusion injury, and the protective effect can be augmented with cilostazol monotherapy, compared to combined therapy

The effect of diclofenac on matrix metalloproteinase levels in the rotator cuff

Introduction Matrix metalloproteinases (MMPs) are involved in physiological events such as restructuring of the tissue, morphogenesis, wound healing and normal developmental process. Use of diclofenac sodium following rotator cuff repair can disrupt healing of tendon through acting on MMPs