Background: Effects of Extremely Low Frequency Magnetic Field) ELF-MF (in the elevation of blood sugar, cholesterol, triglyceride and reduction of withdrawal syndrome of morphine have been reported so far. Since pain ...Background: Effects of Extremely Low Frequency Magnetic Field) ELF-MF (in the elevation of blood sugar, cholesterol, triglyceride and reduction of withdrawal syndrome of morphine have been reported so far. Since pain is one of the main concerns in medicine and usually analgesic drugs are not much beneficial or cause considerable side effects, the present project was carried out with the aim of evaluating the effects of (ELF-MF (in chronic pain using formalin test in mice. Materials & Methods: In this experimental study, thirty two adult male mice were used and divided into 4 groups (n = 8). Three groups of animals exposed daily for thirty minutes to 25, 50, 75 HZ (intense 250 μT) of electromagnet field for one week, respectively and one group considered as control with no exposure. At the end of a week, formalin test was performed. Responses to formalin were observed for sixty minutes. The results were compared between tests and control group. Findings: In acute phase of formalin test, ELF-MF reduced significantly the pain scores following formalin injection at all 3 frequencies, especially at 25 and 50 HZ (p < 0.001) rather 75 HZ (p < 0.05). In chronic phase of formalin test, ELF-MF reduced pain scores at 25 and 50 HZ (p < 0.05). However, the most effective responses were obtained at 50 HZ frequency. Conclusion: The findings show that ELF-MF is effective to reduce formalin induced chronic pain in mice at both acute and chronic phases.展开更多
Biebersteinia multifida DC. has been used for the purpose of development of physical strength in iranian folk medicine. In the present study, we investigated the effect of Biebersteinia multifida DC. root extract on p...Biebersteinia multifida DC. has been used for the purpose of development of physical strength in iranian folk medicine. In the present study, we investigated the effect of Biebersteinia multifida DC. root extract on performance of the Forced Swimming Test (FST), and on blood biochemical parameters related to fatigue: Blood Urea Nitrogen (BUN), Creatine Kinase (CK), Lactic Dehydrogenase (LDH), Glucose (Glc), and Total Protein (TP). Biebersteinia multifida DC. root extract was orally administered to mice at the doses 4, 7 and 10 mg/kg continuously once per day for 1 and 7 days using a feeding atraumatic needle. After 7 days, on FST the immobility time was decreased in the treated-groups at the doses 4 and 7 mg/kg, but after 1 day, only the immobility time of the treated- group at the dose of 4 mg/kg was decreased significantly. In addition, the content of Glc and TP in the blood serum was significantly increased in the groups receiving 4 and 7 mg/kg of Biebersteinia multifida DC. root extract for 7 days and LDH was decreased significantly. However, the levels of BUN and CK did not show a significant change. The results predict a potential benefit of Biebersteinia multifida DC. root extract as an anti-fatigue treatment and for improving physical stamina.展开更多
文摘Background: Effects of Extremely Low Frequency Magnetic Field) ELF-MF (in the elevation of blood sugar, cholesterol, triglyceride and reduction of withdrawal syndrome of morphine have been reported so far. Since pain is one of the main concerns in medicine and usually analgesic drugs are not much beneficial or cause considerable side effects, the present project was carried out with the aim of evaluating the effects of (ELF-MF (in chronic pain using formalin test in mice. Materials & Methods: In this experimental study, thirty two adult male mice were used and divided into 4 groups (n = 8). Three groups of animals exposed daily for thirty minutes to 25, 50, 75 HZ (intense 250 μT) of electromagnet field for one week, respectively and one group considered as control with no exposure. At the end of a week, formalin test was performed. Responses to formalin were observed for sixty minutes. The results were compared between tests and control group. Findings: In acute phase of formalin test, ELF-MF reduced significantly the pain scores following formalin injection at all 3 frequencies, especially at 25 and 50 HZ (p < 0.001) rather 75 HZ (p < 0.05). In chronic phase of formalin test, ELF-MF reduced pain scores at 25 and 50 HZ (p < 0.05). However, the most effective responses were obtained at 50 HZ frequency. Conclusion: The findings show that ELF-MF is effective to reduce formalin induced chronic pain in mice at both acute and chronic phases.
文摘Biebersteinia multifida DC. has been used for the purpose of development of physical strength in iranian folk medicine. In the present study, we investigated the effect of Biebersteinia multifida DC. root extract on performance of the Forced Swimming Test (FST), and on blood biochemical parameters related to fatigue: Blood Urea Nitrogen (BUN), Creatine Kinase (CK), Lactic Dehydrogenase (LDH), Glucose (Glc), and Total Protein (TP). Biebersteinia multifida DC. root extract was orally administered to mice at the doses 4, 7 and 10 mg/kg continuously once per day for 1 and 7 days using a feeding atraumatic needle. After 7 days, on FST the immobility time was decreased in the treated-groups at the doses 4 and 7 mg/kg, but after 1 day, only the immobility time of the treated- group at the dose of 4 mg/kg was decreased significantly. In addition, the content of Glc and TP in the blood serum was significantly increased in the groups receiving 4 and 7 mg/kg of Biebersteinia multifida DC. root extract for 7 days and LDH was decreased significantly. However, the levels of BUN and CK did not show a significant change. The results predict a potential benefit of Biebersteinia multifida DC. root extract as an anti-fatigue treatment and for improving physical stamina.
