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Chin implant

Adam R Chin, Jin Gao, Yadong Wang, Juan M Taboas, Alejandro J Almarza
PURPOSE: Biodegradable polymeric scaffolds have been used for tissue engineering approaches and can be used to regenerate temporomandibular joint (TMJ) tissues. Synthetic acellular polymeric poly(glycerol sebacate) (PGS) scaffolds and natural scaffolds made from gelatin are polymeric scaffold sponges that could provide a substrate for cell infiltration and remodeling. The authors studied the regenerative potential of these 2 scaffolds in addition to a bioactive signal, magnesium (Mg), in a novel fibrocartilage defect model in the goat mandibular condylar cartilage (MCC)...
February 22, 2018: Journal of Oral and Maxillofacial Surgery
Dorien Reijnders, Chin-Chi Liu, Xinjing Xu, Anna Zhao, Kelsey Olson, Scott D Butler, Nataki C Douglas, Jenny L Sones
Preeclampsia (PE), a hypertensive disease of pregnancy, is a leading cause of fetal and maternal morbidity/mortality. Early angiogenic and inflammatory disturbances within the placenta are thought to underlie the development of the maternal PE syndrome and poor pregnancy outcomes. However, the exact etiology remains largely unknown. Here, we use the BPH/5 mouse model of PE to elucidate the way in which inflammation early in pregnancy contributes to abnormal expression of angiogenic factors at the maternal-fetal interface...
March 9, 2018: Physiological Genomics
C Hu, J Xu, Y B Liang, C Ye, H X Wu, K M Feng, Y Q Xie, A W Fang, J Qu
Objective: To investigate the patterns of surgical treatment for patients with glaucoma in the Eye Hospital of Wenzhou Medical University from 2005 to 2014. Methods: Retrospective case series about 6 781 glaucoma patients (7 751 eyes) who received surgical treatment from January 1, 2005 to December 31, 2014 in the Eye Hospital of Wenzhou Medical University. Among them, 2 869 were males and 3 912 were females, aged (62±14) years. The data of patients' demographic information, diagnosis and surgical procedures [trabeculectomy, aqueous shunts of ExPRESS and Ahmed for extraocular reservoir, cataract extraction with intraocular lens (IOL) implantation, and combined operations for glaucoma and cataract] were collected and the patterns of surgical treatment were evaluated...
March 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Chin-Tuan Tan, Brett A Martin, Mario A Svirsky
The overall goal of this study was to identify an objective physiological correlate of electric-acoustic pitch matching in unilaterally implanted cochlear implant (CI) participants with residual hearing in the non-implanted ear. Electrical and acoustic stimuli were presented in a continuously alternating fashion across ears. The acoustic stimulus and the electrical stimulus were either matched or mismatched in pitch. Auditory evoked potentials were obtained from nine CI users. Results indicated that N1 latency was stimulus-dependent, decreasing when the acoustic frequency of the tone presented to the non-implanted ear was increased...
March 6, 2018: Cochlear Implants International
M Rockwell Parker, Saumya M Patel, Jennifer E Zachry, Bruce A Kimball
Pheromones are useful tools for the management of invasive invertebrates, but have proven less successful in field applications for invasive vertebrates. The brown treesnake, Boiga irregularis, is an invasive predator that has fundamentally altered the ecology of Guam. The development of control tools to manage Boiga remains ongoing. Skin-based, lipophilic pheromone components facilitate mating in brown treesnakes, with females producing the same long-chain, saturated and monounsaturated (ketomonoene) methyl ketones known to function as pheromones in garter snakes, Thamnophis sirtalis...
February 2018: Journal of Chemical Ecology
Laura Wanner, Ute Ludwig, Jan-Bernd Hövener, Katja Nelson, Tabea Flügge
OBJECTIVE: Compared with cone beam computed tomography (CBCT), magnetic resonance imaging (MRI) might be superior for the diagnosis of nerve lesions associated with implant placement. STUDY DESIGN: A patient presented with unilateral pain associated with dysesthesia in the region of the right lower lip and chin after implant placement. Conventional orthopantomography could not identify an association between the position of the inferior alveolar nerve and the implant...
January 31, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Chunmiao Jiang, Yinghong Liu, Qian Cheng, Wei He, Shanbao Fang, Tingting Lan, Jun Wang
Patients with bimaxillary protrusion may have an unattractive profile with a retruded chin contour. Correction of the severely protrusive anterior alveolar bone and teeth combined with a moderate open bite without orthognathic surgery can be challenging. This case report describes the orthodontic treatment of a woman with severe bimaxillary protrusion and a moderate open bite. Excellent chin morphology and facial appearance were obtained with the extraction of 4 first premolars and 4 third molars, and total distalization of both arches with 4 mini-implants, one in each quadrant between the second premolar and the first molar...
March 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Samir Mehta, Matthew Chin, Jennifer Sanville, Surena Namdari, Michael W Hast
INTRODUCTION: In locked plate fixation of proximal humerus fractures, the calcar is an important anchor point for screws providing much-needed medial column support. Most locking plate implants utilize a fixed-trajectory locking screw to achieve this goal. Consequently, adjustments of plate location to account for patient-specific anatomy may result in a screw position outside of the calcar. To date, little is known about the consequences of "missing" the calcar during plate positioning...
February 11, 2018: Injury
Jun Hyung Kim, Ki-Woon Kang, Jung Yeon Chin, Tae-Seok Kim, Jae-Hyeong Park, Yu Jeong Choi
OBJECTIVES: The predictors of pacing-induced cardiomyopathy (PICM) for complete atrioventricular block (CAVB) have not yet been defined. The aim of this study was to investigate the major determinant of the occurrence of PICM. SETTING: This is a multicentre, retrospective analysis of CAVB from tertiary referral centres in Daejeon, South Korea. PARTICIPANTS: A cohort of 900 consecutive patients with an implanted pacemaker was collected from December 2001 to August 2015...
February 8, 2018: BMJ Open
Z K Ji, Y Zhao, S S Yu, H Zhao
3D printing is a kind of technology that makes 3D models from computer-aided designs through additive manufacturing, in which successive layers of the material are deposited onto underlying layers to construct 3D objects. In recent years, 3D printing is gradually applied in the field of ophthalmology, such as the cornea, retina, orbital operation, ocular tumor radiotherapy, ocular implants and ophthalmology teaching. This article reviews the application status of 3D printing technology in the basic research and clinical treatment in ophthalmology...
January 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Vikas Thondapu, Erhan Tenekecioglu, Eric K W Poon, Carlos Collet, Ryo Torii, Christos V Bourantas, Cheng Chin, Yohei Sotomi, Hans Jonker, Jouke Dijkstra, Eve Revalor, Frank Gijsen, Yoshinobu Onuma, Andrew Ooi, Peter Barlis, Patrick W Serruys
Aims: As a sine qua non for arterial wall physiology, local hemodynamic forces such as endothelial shear stress (ESS) may influence long-term vessel changes as bioabsorbable scaffolds dissolve. The aim of this study was to perform serial computational fluid dynamic (CFD) simulations to examine immediate and long-term haemodynamic and vascular changes following bioresorbable scaffold placement. Methods and results: Coronary arterial models with long-term serial assessment (baseline and 5 years) were reconstructed through fusion of intravascular optical coherence tomography and angiography...
February 2, 2018: European Heart Journal
Chin Siang Ong, Xun Zhou, Jingnan Han, Chen Yu Huang, Andrew Nashed, Shipra Khatri, Gunnar Mattson, Takuma Fukunishi, Huaitao Zhang, Narutoshi Hibino
Spheroids are increasingly being employed to answer a wide range of clinical and biomedical inquiries ranging from pharmacology to disease pathophysiology, with the ultimate goal of using spheroids for tissue engineering and regeneration. When compared to traditional two-dimensional cell culture, spheroids have the advantage of better replicating the 3D extracellular microenvironment and its associated growth factors and signaling cascades. As knowledge about the preparation and maintenance of spheroids has improved, there has been a plethora of translational experiments investigating in vivo implantation of spheroids into various animal models studying tissue regeneration...
February 3, 2018: Biotechnology Advances
Po-Kai Yang, Ming-Yih Wu, Kuang-Han Chao, Chin-Hao Chang, Mei-Jou Chen, Shee-Uan Chen
BACKGROUND/PURPOSE: The role of LH during controlled ovarian stimulation (COS) in the general population remains contentious. There is no consensus on the indications for LH supplementation during COS. The purpose of this study is to determine whether menotropin supplement is associated with decreases in early pregnancy loss rates in patients exhibiting low endogenous LH during COS. METHOD: This is a single-center, retrospective cohort from a university-affiliated hospital...
February 2, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
Chin-Long Ky, Virgile Quillien, Floriane Broustal, Claude Soyez, Dominique Devaux
The bivalve Pinctada margaritifera exhibits three main transplant phenotypes derived from the donor (from which a mantle graft tissue, the saibo, is excised), the recipient (into which the saibo is implanted with a nucleus, leading to the formation of a pearl sac "chimera") and the cultured pearls themselves. This first phenome study on the species derived from a large experimental graft. Transplant phenotype was assessed at three scales: 1) macro, pearl size, colour, grade, 2) micro, pearl surface microstructure, and 3) molecular, biomineralisation gene expression level in saibo and pearl sac tissues...
February 1, 2018: Scientific Reports
Chi-Yu Wang, Chin-Hsin Wang, Yuan-Sheng Tzeng, Chin-Ta Lin, Chang-Yi Chou, I-Han Chiang, Chien-Ju Wu, Shyi-Gen Chen
INTRODUCTION: Nipple-sparing mastectomy (NSM) and immediate breast reconstruction with gel implants have grown in popularity because of superior aesthetic outcomes. One risk of this procedure is overexcision of the flap leading to inadequate circulation in the breast envelope. METHODS: We investigated 17 cases of NSM and gel implant breast reconstruction. Patients were divided into an infra-areolar incision group and a supra-areolar incision group. Nipple-areolar complex perfusion was evaluated using the SPY imaging system after NSM and gel implant breast reconstruction...
February 2018: Annals of Plastic Surgery
Ying-Hui Lai, Yu Tsao, Xugang Lu, Fei Chen, Yu-Ting Su, Kuang-Chao Chen, Yu-Hsuan Chen, Li-Ching Chen, Lieber Po-Hung Li, Chin-Hui Lee
OBJECTIVE: We investigate the clinical effectiveness of a novel deep learning-based noise reduction (NR) approach under noisy conditions with challenging noise types at low signal to noise ratio (SNR) levels for Mandarin-speaking cochlear implant (CI) recipients. DESIGN: The deep learning-based NR approach used in this study consists of two modules: noise classifier (NC) and deep denoising autoencoder (DDAE), thus termed (NC + DDAE). In a series of comprehensive experiments, we conduct qualitative and quantitative analyses on the NC module and the overall NC + DDAE approach...
January 20, 2018: Ear and Hearing
I-Chen Li, Wan-Ping Chen, Yen-Po Chen, Li-Ya Lee, Yueh-Ting Tsai, Chin-Chu Chen
This study aimed to establish an in vitro model to confirm the efficacy of erinacine A-enriched Hericium erinaceus (EAHE) mycelia and investigate its potential adverse effects in a preclinical experimental setting, including an assessment on the oral administration of EAHE mycelia in acute and prenatal developmental toxicity tests. At a single dose of 5000 mg/kg body weight, EAHE mycelia elicited no death or treatment-related signs of toxicity in ten Sprague-Dawley rats of both sexes during the 14 days of the experimental period...
January 23, 2018: Drug and Chemical Toxicology
Kingsley Richard Chin, Jacob Ryan Lubinski, Kari Bracher Zimmers, Barry Eugene Sands, Fabio Pencle
Background: The purpose of this study is to present clinical outcome data from a 2-year post-market study of a viscoelastic one-piece cervical total disc replacement (TDR) in Europe. Methods: Thirty-nine patients were implanted at five surgical sites in an European post-market clinical study. Clinical outcomes included improvement of neck disability index (NDI) and visual analog scale scores for neck and arm pain from baseline to 2-year follow-up, neurological examinations, patients view on the success of surgery, complications, and subsequent surgical interventions...
December 2017: Journal of Spine Surgery (Hong Kong)
Hani M Rayess, Peter Svider, Curtis Hanba, Vivek Sagar Patel, Michael Carron, Giancarlo Zuliani
Importance: Facial implants represent an important strategy for providing instant and long-lasting volume enhancement to address both aging and posttraumatic defects. Objective: To better understand risks of facial implants by examining national resources encompassing adverse events and considerations facilitating associated litigation. Design, Setting, and Participants: A cross-sectional study reviewed complications following facial implants...
January 18, 2018: JAMA Facial Plastic Surgery
Yun-Wen Chen, Shu-Chen Hsieh, Yi-Chin Yang, Shan-Hui Hsu, Mei-Lang Kung, Pei-Ying Lin, Hsien-Hsu Hsieh, Ching-Hao Lin, Cheng-Ming Tang, Huey-Shan Hung
Vascularization of engineered tissues remains one of the key problems. Here, we described a novel approach to promote vascularization of engineered tissues using fibronectin (FN) incorporated gold nanoparticles (AuNP) coated onto catheters with mesenchymal stem cells (MSCs) for tissue engineering. We found that the FN-AuNP composite with 43.5 ppm of AuNP exhibited better biomechanical properties and thermal stability than pure FN. FN-AuNP composites promoted MSC proliferation and increased the biocompatibility...
January 8, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
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