Protocol and Evaluation of 3D-Planned Microsurgical and Dental Implant Reconstruction of Maxillary Cleft Critical Size Defects in Adolescents and Young Adults.

Functional and esthetic final reconstruction of the cleft maxilla is still challenging. Current reconstructive and augmentation techniques do not provide sufficient bone and soft tissue support for the predictable rehabilitation with dental implants due to presence of maxillary bone critical size defects and soft tissue deficiency, scaring and poor vascularity. In this article the protocol for the use of 3D virtual surgical planning and microvascular tissue transfers for the reconstruction and rehabilitation of cleft maxilla is presented. Twenty-five patients (8 male/17 female) aged 14-41 years old with cleft-associated critical size defects were treated by 3D-virtual planned microvascular tissue transfers taken either from fibula, iliac crest, radial forearm, or medial femoral condyle. Follow-up lasted 1-5 years. No significant bone resorption (p > 0.005) nor volume loss of the graft was observed (p = 0.645). Patients received final permanent prosthetic reconstruction of the anterior maxilla based on 2-5 dental implants, depending on the defect severity. This is the first study presenting the use of virtual planning in the final restoration of the cleft maxilla with microvascular tissue transfers and dental implants. Presented protocol provide highly functional and aesthetic results.

Assessing the Interactions of Statins with Human Adenylate Kinase Isoenzyme 1: Fluorescence and Enzyme Kinetic Studies.

Statins are the most effective cholesterol-lowering drugs. They also exert many pleiotropic effects, including anti-cancer and cardio- and neuro-protective. Numerous nano-sized drug delivery systems were developed to enhance the therapeutic potential of statins. Studies on possible interactions between statins and human proteins could provide a deeper insight into the pleiotropic and adverse effects of these drugs. Adenylate kinase (AK) was found to regulate HDL endocytosis, cellular metabolism, cardiovascular function and neurodegeneration. In this work, we investigated interactions between human adenylate kinase isoenzyme 1 (hAK1) and atorvastatin (AVS), fluvastatin (FVS), pravastatin (PVS), rosuvastatin (RVS) and simvastatin (SVS) with fluorescence spectroscopy. The tested statins quenched the intrinsic fluorescence of hAK1 by creating stable hAK1-statin complexes with the binding constants of the order of 104 M-1. The enzyme kinetic studies revealed that statins inhibited hAK1 with significantly different efficiencies, in a noncompetitive manner. Simvastatin inhibited hAK1 with the highest yield comparable to that reported for diadenosine pentaphosphate, the only known hAK1 inhibitor. The determined AK sensitivity to statins differed markedly between short and long type AKs, suggesting an essential role of the LID domain in the AK inhibition. Our studies might open new horizons for the development of new modulators of short type AKs.

Preferences of patients with inflammatory bowel disease for receiving specialized health services using technology: the role of Internet and other sources of medical information.

INTRODUCTION: It is notable that patients with inflammatory bowel disease (IBD) have insufficient knowledge about their disease and are willing to be more involved in their treatment. Nowadays medical information is easily available and health-related topics state the third most frequent reason for using the Internet. Therefore, patient's health-related self-awareness and willingness to take part in medical decisions have improved. The possibility of choice of specialized health services may have a positive effect on patient's satisfaction. The aim of the study was to characterize the extent of Internet use for health information among a representative sample of IBD patients and to examine the effects that Internet and other sources of information about specialized health services have on patients' choices of a doctor and hospital department. MATERIALS AND METHODS: In total, 135 IBD patients admitted to the Department of General and Colorectal Surgery at Medical University of Lodz were asked to complete an anonymous questionnaire. Only 123 fully completed questionnaires were included for analysis. The study group involved 68 women and 55 men. RESULTS: A total of 85.4% IBD patients used Internet in order to gather medical information about their disease. Age of those patients was significantly lower than of those patients who did not use Internet. The most reliable source of information about physicians was Internet. Opinions and recommendations gathered from the Internet have a notable influence on patients' preference of hospital department and attending physician. CONCLUSIONS: A majority of patients used Internet as a source of medical information related to IBD. Opinions obtained from the Internet seem to be the most reliable regarding attending physicians treating IBD patients.