Comparison of the effects of dexketoprofen trometamol, meloxicam and diclofenac sodium on fibular fracture healing, kidney and liver: an experimental rat model.

OBJECTIVES: Nonsteroidal anti-inflammatory drugs (NSAIDs) are particularly used in patients with bone fractures, but there are limited studies on whether one NSAID is superior to another. In this study, we used histopathological and biochemical parameters to determine whether there are differences between the effects of the administration of clinical doses of dexketoprofen trometamol (DEXT), meloxicam (MEL) and diclofenac sodium (DIC) on the healing of closed fibular fractures and the toxicity of both the liver and kidney. METHODS: Twenty-eight male Sprague-Dawley rats were randomly divided into four groups of seven each. Closed diaphyseal fractures were formed in the left fibulas of all of the rats. The NSAIDs dexketoprofen trometamol (DEXT) (Arveles(®)), meloxicam (MEL) (Melox(®)) and diclofenac sodium (DIC) (Voltaren(®)) were intramuscularly administered to Groups I, II, and III, respectively, for a period of 10 days after the fibular fractures were performed. No pharmacological agents were administered to Group IV (Control group). Blood samples were collected from all of the rats after the fractures were performed, and the rats were sacrificed on day 28. The histopathological findings were compared, and the blood samples were evaluated to determine any differences between the levels of superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA). RESULTS: Our results suggest that DEXT and MEL impair the healing of bone fractures and that DIC does not histopathologically affect the healing process of bone fractures. We also found that DEXT, MEL, and DIC impaired the renal histopathology compared with the control group. However, the liver histopathological analysis showed that DEXT and MEL caused a higher degree of parenchymal necrosis compared with DIC. CONCLUSION: Based on our results, DIC can be considered a relatively safe medication in patients with fractures.

The effects of long-term exposure of magnetic field via 900-MHz GSM radiation on some biochemical parameters and brain histology in rats.

The aim of this study is to determine the effects of magnetic field via cell phones on some blood parameters and neurons in the brain of rats. Animals have been classified into three groups: control, Magnetic Field (MF), and F2 groups. Throughout this study, cell phones were placed on the wall of the cages. Rats were exposed to the effects of cell phones during prenatal and postnatal periods until they were 80 days old. During the study, the exposure procedure of rats was that the phone was in standby mode for a whole day and in talking mode for 30 min per day. The waves of cell phones caused an increased blood glucose level from 96.52 ± 5.64 mg/dl to 132.14 ± 5.93 mg/dl and an increased serum protein level from 131.14 ± 6.19 mg/dl to 319.29 ± 6.73 mg/dl compared to control. Statistically, significant differences wasn't observed in the blood cholesterol concentration between the groups compared to the control. Weekly weight gain decreased in all groups compared to the control. MF exposure decreased pyramidal neuron numbers 51.15% and increased ischemic neuron numbers 73% at cortex region of brain. In addition, vascular dilatations have increased clearly in group F2.Whereas the procedure of MF did not have any effects on hippocampal pyramidal cell numbers, magnetic fields increased the amount of ischemic neurons three-fold compared to the control. In conclusion, MF affected some biochemical parameters, especially the cortex region of the brain.

Effects of Equisetum arvense Ointment on Dermal Wound Healing in Rats .

UNLABELLED: The aim of this study was to evaluate the effectiveness of Equisetum arvense ointment on dermal wound healing in rats. METHODS: The authors studied a total of 56 wounds in four groups of rats. Each wound measured 15 mm x 15 mm. The first group did not receive treatment while the second group was treated with a 1:1 mixture of Vaseline and lanolin ointment. Equisetum arvense ointment doses of 5% and 10% were used in the third and fourth groups. The rats were observed at days 7 and 14 post wounding. The state of the wound healing was evaluated using wound closure ratio and histopathologic studies. RESULTS: Equisetum arvense 5% and 10% groups and the Vaseline-lanolin group had a statistically significant higher wound closure ratio than the control group (P &0.05). Equisetum arvense ointment groups had a 95.26% and 99.96% wound closure ratio (P & 0.05) and higher dermal and epidermal regeneration, angiogenesis, and granulation tissue thickness after 14 days as compared to the other groups (P & 0.05). P. Equisetum arvense ointment exhibits significant wound healing activity in rats. Further clinical and experimental studies are needed to confirm these results. .