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05). The presence of BIX02189, a specific inhibitor of MER/ERK, caused a much greater cytotoxicity, i.e., higher cell death, more ROS production, and worsened apoptosis, than did the treatment with Mn alone. Following Mn exposure, the expression of a downstream effector Bcl- 2 was reduced by 48 % while those of Bax and Caspase-3 were increased by 266.7 % and 90.1 %, respectively, as compared to controls (p less then 0.05). Conclusion Taken together, these data provide the initial evidence that the signaling transduction cascade mediated by MEK5/ERK5 is responsible to Mn-induced cytotoxicity; Mn exposure, by suppressing anti-apoptotic function while facilitating pro-apoptotic activities, alters neuronal cell's survival and functionally inhibits DA production by MN9D cells.Background Selenium and iodine are trace elements well known to have important roles in the synthesis and metabolism of thyroid hormones. However, the effects of other trace elements on thyroid hormones are still inconclusive. We investigated the association between several trace elements and thyroid hormones. Methods The data of 448 subjects who were measured for both, trace elements and TSH/free T4, at the Heath Checkup Center were retrospectively reviewed. The presence of thyroiditis (from thyroid echogenicity) and thyroid nodules were reviewed in the subjects who underwent thyroid ultrasonography. Results Blood concentrations of manganese, copper, selenium, and molybdenum were associated with TSH or free T4. After adjusting for age, sex, BMI, smoking, and alcohol consumption, blood copper levels were positively associated with free T4 in both sexes and selenium levels were positively associated with free T4 in women. Tiplaxtinin There was no association between trace elements and thyroiditis. Blood copper concentration had a weak non-linear association with the presence of thyroid nodules. Conclusions This study demonstrated that blood concentrations of copper and selenium were significantly associated with free T4 in healthy Korean subjects with sufficient iodine intake suggesting their role in maintaining normal thyroid function.The polydopamine coating on Au-Ag nanoparticles (Au-Ag-PDA) possess excellent photothermal conversion efficiency after absorbing near-infrared laser light. After the stem cell membrane (STCM) encapsulates Au-Ag-PDA (Au-Ag-PDA@STCM), the nanoparticles (NPs) exhibit less cytotoxicity, and further optimizing their efficiency in photothermal therapy. The photothermal activity of Au-Ag-PDA@STCM has not yet been reported. Therefore, in this study, the sebaceous gland cell line SZ95 and the golden hamsters were used to observe the photothermal effects of the Au-Ag-PDA@STCM. SZ95 cells were treated with various concen-trations of Au-Ag-PDA@STCM NPs. The photothermal effect on cell proliferation was analyzed after irradiating the cells with a 808 nm laser. After laser treatment of golden hamsters, the flank organs were observed at 4 different time points. Histological analysis was performed to observe tissue damage. The results suggest that Au-Ag-PDA@STCM NPs significantly inhibited the proliferation of sebaceous gland cells in vitro, and reduced the size of sebaceous glands and sebum secretion in vivo. Therefore, NPs can be used to treat acne by thermally injuring sebaceous gland cells.Purpose The objective of the present retrospective study was to assess the long-term implant treatment outcome and patient satisfaction after lateral ridge augmentation in the posterior mandible with autogenous bone block graft harvested from the ascending mandibular ramus. Materials and methods Seventy-four lateral ridge augmentation procedures in the posterior mandible with an autogenous bone block graft harvested from the ascending mandibular ramus and delayed placement of 87 implants was conducted in 46 consecutive patients from 2002-2006. Records and radiographs were retrospectively analyzed. Twenty-four patients responded to a 10-years follow-up examination including 39 lateral ridge augmentation procedures and 48 implants. Survival of suprastructures and implants, peri-implant marginal bone loss, patient perception and professional evaluation of the final implant treatment was assessed after 10 years. Results The 10-year survival of suprastructures and implants was 100% as all the implants and suprastructures were present with limited peri-implant marginal bone loss. The patients were highly satisfied with the esthetic and implant treatment outcome. Conclusion Lateral ridge augmentation in the posterior mandible with autogenous bone block graft from the ascending mandibular ramus is characterized by high long-term implant survival rate and patient satisfaction.Objective The respiratory movements of fetal amniotic fluid areconsidered by certains cleft surgery teams to contribute to the growth of the nasal cavities (NC). To assess this functional hypothesis, we considered a group of patients with unilateral choanal atresia (CA) as a model of unilateral absence of amniotic fluid flux in the NC, and compared their NCs shape to age-matched controls. Material and methods Three-dimensional reconstructions of NC were performed using Avizo 9.7 (Thermo Fisher Scientific, MA, USA), based on CT-scans of 32 patients with unilateral CA and 96 age- and gender-matched controls. Landmarks were placed on anatomical structures of NC. Procrustes superimpositions and principal component analysis were performed. Anatomically relevant Euclidean distances were computed using the coordinates of selected landmarks - maxillary length, piriform orifice width, choanal width - and tested using multivariate analysis. Growth rates between patients and controls for these distances were screened for correlations. Results The atretic NC was significantly deformed when compared to the control cases Procrustes distance was 0.28 (P less then 0.0001). The maxillary length and width of the atretic choana were significantly decreased compared to controls (-2.95mm and -1.35mm respectively, P less then 0.001). There were no differences in growth rates between CA and controls, except for the choanal width on the atretic side. Conclusion NCs in CA were significantly different from controls. More precisely, the maxillary length was significantly reduced in the CA group. There was no other major shape difference between the NC in CA and controls. NC seems to develop despite abnormal fetal ventilation.