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      Pentoxifylline and electromagnetic field improved bone fracture healing in rats

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          The aim of this study was to evaluate the effects of a phosphodiesterase inhibitor pentoxifylline (PTX), electromagnetic fields (EMFs), and a mixture of both materials on bone fracture healing in a rat model.

          Materials and methods

          Eighty male Wistar rats were randomly divided into four groups: Group A, femur fracture model with no treatment; Group B, femur fracture model treated with PTX 50 mg/kg/day intraperitoneal injection; Group C, femur fracture model treated with EMF 1.5±0.2 Mt/50 Hz/6 hours/day; and Group D, femur fracture model treated with PTX 50 mg/kg/day intraperitoneal injection and EMF 1.5±0.2 Mt/50 Hz/6 hours/day.


          Bone fracture healing was significantly better in Group B and Group C compared to Group A ( P<0.05), but Group D did not show better bone fracture healing than Group A ( P>0.05).


          It can be concluded that both a specific EMF and PTX had a positive effect on bone fracture healing but when used in combination, may not be beneficial.

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          Most cited references 53

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          The potential impact of the preparation rich in growth factors (PRGF) in different medical fields.

          Platelet-rich preparations constitute a relatively new biotechnology for the stimulation and acceleration of tissue healing and bone regeneration. The versatility and biocompatibility of this approach has stimulated its therapeutic use in numerous medical and scientific fields including dentistry, oral implantology, orthopaedics, ulcer treatment, tissue engineering among others. Here we discuss the important progress that has been accomplished in the field of platelet-rich preparations in the last few years. Some of the most interesting therapeutic applications of this technology are discussed as are some of the limitations, future challenges and directions in the field.
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            Special Report: The 1996 Guide for the Care and Use of Laboratory Animals.

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              Cyclic nucleotide phosphodiesterases.

               D M Essayan (2001)
              Cyclic nucleotide second messengers (cAMP and cGMP) play a central role in signal transduction and regulation of physiologic responses. Their intracellular levels are controlled by the complex superfamily of cyclic nucleotide phosphodiesterase (PDE) enzymes. Continuing advances in our understanding of the molecular pharmacology of these enzymes has led to the development of selective inhibitors as therapeutic agents for disease states ranging from cancer and heart failure to depression and sexual dysfunction. Several PDE types have been identified as therapeutic targets for immune/inflammatory diseases. This article briefly reviews the available in vitro, preclinical, and clinical data supporting the potential for selective PDE inhibitors as immunomodulatory agents.

                Author and article information

                Drug Des Devel Ther
                Drug Des Devel Ther
                Drug Design, Development and Therapy
                Drug Design, Development and Therapy
                Dove Medical Press
                09 September 2015
                : 9
                : 5195-5201
                [1 ]Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Afyon Kocatepe University, Afyonkarahisar, Turkey
                [2 ]Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakır, Turkey
                [3 ]Department of Orthopedics, Medicana Hospitals, Ankara, Turkey
                [4 ]Department of Biophysics, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
                Author notes
                Correspondence: Yusuf Atalay, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Afyon Kocatepe University, 03030 Afyonkarahisar, Turkey, Tel +90 272 216 7900 ext 1025-1038, Email dt_atalay@ 123456hotmail.com
                © 2015 Atalay et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

                The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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