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So-Hyoun Lee, Jong-Hoon Moon, Chang-Mo Jeong, Eun-Bin Bae, Chung-Eun Park, Gye-Rok Jeon, Jin-Ju Lee, Young-Chan Jeon, Jung-Bo Huh
The purpose of this study is to evaluate the effect of three-dimensional preformed titanium membrane (3D-PFTM) to enhance mechanical properties and ability of bone regeneration on the peri-implant bone defect. 3D-PFTMs by new mechanically compressive molding technology and manually shaped- (MS-) PFTMs by hand manipulation were applied in artificial peri-implant bone defect model for static compressive load test and cyclic fatigue load test. In 12 implants installed in the mandibular of three beagle dogs, six 3D-PFTMs, and six collagen membranes (CM) randomly were applied to 2...
2017: BioMed Research International
Waleed Al-Mahdi, Mazen M Ibrahim, David A Spiegel, Alexandre Arkader, Michael Nance, Keith Baldwin
BACKGROUND: Systemic inflammatory response syndrome (SIRS) is a well-recognized phenomenon in adult trauma populations. The "initial hit" of the traumatic event is often coupled with a systemic immune response characterized by changes in vital signs and laboratory indicators. A "second hit" from surgery during this time frame often results in acute lung injury, along with deterioration of the patient's clinical condition. We hypothesized that children and adolescents would experience SIRS physiology, but would not experience adult respiratory distress syndrome (ARDS) or "second hit" related death to the extent seen in the adult populations...
October 9, 2017: Journal of Pediatric Orthopedics
Sze Keong Tey, Edith Yuk Ting Tse, Xiaowen Mao, Frankie Chi Fat Ko, Alice Sze Tsai Wong, Regina Cheuk-Lam Lo, Irene Oi-Lin Ng, Judy Wai Ping Yam
Presence of Met receptor tyrosine kinase in the nucleus of cells has been reported. However, the functions of Met which expresses in the nucleus (nMet) remain elusive. In this study, we found that nMet was increased in 89% of HCC tumorous tissues when compared with the corresponding non-tumorous liver tissues. nMet expression increased progressively along HCC development and significantly correlated with cirrhosis, poorer cellular differentiation, venous invasion, late stage HCC and poorer overall survival...
October 6, 2017: Cancer Letters
Carolyne Albert, John Jameson, Sergey Tarima, Peter Smith, Gerald Harris
Children with severe osteogenesis imperfecta (OI) typically experience numerous fractures and progressive skeletal deformities over their lifetime. Recent studies proposed finite element models to assess fracture risk and guide clinicians in determining appropriate intervention in children with OI, but lack of appropriate material property inputs remains a challenge. This study aimed to characterize macroscopic anisotropic cortical bone material properties and investigate relationships with bone density measures in children with severe OI...
September 14, 2017: Journal of Biomechanics
Yoshihiro Banno, Shigekazu Sasaki, Makoto Kamata, Jun Kunitomo, Yasufumi Miyamoto, Hidenori Abe, Naohiro Taya, Satoru Oi, Masanori Watanabe, Tomoko Urushibara, Masatoshi Hazama, Shin-Ichi Niwa, Saku Miyamoto, Akira Horinouchi, Ken-Ichi Kuroshima, Nobuyuki Amano, Shin-Ichi Matsumoto, Shinichiro Matsunaga
The discovery of a novel series of β-methyltryptophan (β MeTrp) derivatives as selective and orally active non-peptide somatostatin receptor 2 (SSTR2) agonists for the treatment of Type 2 diabetes is described. In our previous research, Compound A, β-MeTrp derivative with highly potent and selective SSTR2 agonistic activity IC50 (SSTR2/SSTR5)=0.3/>100 (nM), was identified asa drug candidate for treatment of Type 2 diabetes which lowers significantly plasma glucose level in Wistar fatty rats in its oral administrations...
September 21, 2017: Bioorganic & Medicinal Chemistry
Vrinda Saraff, Jaskiran Sahota, Nicola Crabtree, Sophia Sakka, Nicholas J Shaw, Wolfgang Högler
Intravenous pamidronate has been used in the treatment of osteogenesis imperfecta (OI) in children for over 20 years. The more potent zoledronate is an attractive alternative as it is administered less frequently. This study compares the clinical efficacy of intravenous pamidronate (1.5 mg/kg/day over 2 days, every 3 months) versus zoledronate (0.05 mg/kg/dose every 6 months) in 40 children (20 per group) with mild to moderate OI and the treatment costs of the two drugs in a tertiary centre for children with osteoporosis...
October 7, 2017: Archives of Disease in Childhood
Sushila Arya, Sanja Kupesic-Plavsic, Zuber D Mulla, Alok K Dwivedi, Zeni Crisp, Jisha Jose, Luis S Noble
OBJECTIVE: To assess the effect of letrozole in combination with low dose gonadotropins for ovulation induction in anovulatory infertility from polycystic ovary syndrome (PCOS) and controlled ovarian stimulation for endometriosis, and unexplained infertility patients. STUDY DESIGN: Retrospective cohort study in a setting of private Reproductive Endocrinology and Infertility Clinic affiliated with the University. Three hundred couples (650 cycles) requiring OI/COS for PCOS (92 patients, 195 cycles), endometriosis (89 patients, 217 cycles), and unexplained infertility (119 patients, 238 cycles)...
September 23, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Ying Bai, Xiangdong Kong, Ning Liu, Shumin Ren, Hongxiang Guo, Kaihui Zhao
OBJECTIVE: To detect potential mutations of COL1A1 and COL1A2 genes in four Chinese pedigrees affected with osteogenesis imperfecta (OI) and provide prenatal diagnosis for a fetus at 18th gestational week. METHODS: All coding regions and exon/intron boundaries of the COL1A1 and COL1A2 genes were analyzed with targeted next-generation sequencing (NGS). Suspected mutations were confirmed with Sanger sequencing in the probands, unaffected relatives and 200 unrelated healthy individuals...
October 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
Kazuhiro Tabata, Ichiro Mori, Takeshi Sasaki, Tomoo Itoh, Taizo Shiraishi, Naoki Yoshimi, Ichiro Maeda, Oi Harada, Kiyomi Taniyama, Daiki Taniyama, Mika Watanabe, Yoshiki Mikami, Shuntaro Sato, Yukio Kashima, Shota Fujimura, Junya Fukuoka
Several reports have demonstrated the use of whole-slide imaging (WSI) for primary pathological diagnosis, but no such studies have been published from Asia. We retrospectively collected 1070 WSI specimens from 900 biopsies and small surgeries conducted in nine hospitals. Nine pathologists, who participated in this study, trained for the College of American Pathologists guidelines, reviewed the specimens and made diagnoses based on digitized, 20× or 40× optically magnified images with a WSI scanner. After a washout interval of over 2 weeks, the same observers reviewed conventional glass slides and diagnosed them by light microscopy...
October 5, 2017: Pathology International
Sujee Jeyapalina, James Peter Beck, Jayant Agarwal, Kent N Bachus
Percutaneous osseointegrated (OI) prostheses directly connect an artificial limb to the residual appendicular skeleton via a permanently implanted endoprosthesis with a bridging connector that protrudes through the skin. The resulting stoma produces unique medical and biological challenges. Previously, a study using a large animal amputation model indicated that infection could be largely prevented, for at least a 12-month period, but the terminal epithelium continued to downgrow. The current study was undertaken to test the longer-term efficacy of this implant construct to maintain a stable skin-implant interface for 24 months...
October 4, 2017: Journal of Materials Science. Materials in Medicine
Paphon Sa-Ngasoongsong, Tanyawat Saisongcroh, Chanika Angsanuntsukh, Patarawan Woratanarat, Pornchai Mulpruek
Osteogenesis imperfecta (OI) is a rare inherited connective tissue disorder caused by mutation of collagen which results in a wide spectrum of clinical manifestations including long bone fragility fractures and deformities. While the treatment for these fractures was recommended as using intramedullary fixation for minimizing stress concentration, the selection of the best implant in the adolescent OI patients for the surgical reconstruction of femur was still problematic, due to anatomy distortion and implant availability...
September 18, 2017: World Journal of Orthopedics
Masayuki Kobayashi, Yoshiyuki Oi
Propofol is primarily a hypnotic, and is widely used for induction and maintenance of anesthesia, as well as for sedation in various medical procedures. The exact mechanisms of its action are not well understood, although its neural mechanisms have been explored in in vivo and in vitro experiments. Accumulating evidence indicates that one of the major targets of propofol is the cerebral cortex. The principal effect of propofol is considered to be the potentiation of GABAA receptor-mediated inhibitory synaptic currents, but propofol has additional roles in modulating ion channels, including voltage-gated Na(+) channels and several K(+) channels...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Darren Abbanat, Todd A Davies, Karen Amsler, Wenping He, Kellen Fae, Sarah Janssen, Jan T Poolman, Germie P J M van den Dobbelsteen
The global burden of disease caused by extra-intestinal pathogenic Escherichia coli (ExPEC) is increasing as the prevalence of multidrug-resistant strains rises. A multivalent ExPEC O-antigen bioconjugate vaccine could have a substantial impact in preventing bacteremia and urinary tract infections. Development of an ExPEC vaccine requires a readout to assess the functionality of antibodies. We developed an opsonophagocytic killing assay (OPA) for four ExPEC serotypes (O1A, O2, O6A and O25B) based on methods established for pneumococcal conjugate vaccines...
September 27, 2017: Clinical and Vaccine Immunology: CVI
Man Soo Kim, In Jun Koh, Young Jun Choi, Yong In
Suspensory femoral graft fixation has been a popular and reliable method in anterior cruciate ligament (ACL) reconstruction. Some authors have introduced suspensory femoral fixation in posterior cruciate ligament (PCL) reconstruction using inside-out (IO) technique. The use of IO technique for femoral tunnel preparation could significantly sharpen the critical corner, which might result in graft failure. A retrograde drilling pin that recently has been popular in ACL reconstruction allows "no incision" in the outside-in (OI) technique for the creation of a femoral socket...
August 2017: Arthroscopy Techniques
Olivier Masson, Abid Berghout, Emilie Béchade, Jenny Jouin, Philippe Thomas, Toru Asaka, Koichiro Fukuda
The local structure of apatite-type lanthanum silicates of general formula La9.33+x(SiO4)6O2+3x/2 has been investigated by combining the atomic pair distribution function (PDF) method, conventional X-ray and neutron powder diffraction (NPD) data and density functional theory (DFT) calculations. DFT was used to build structure models with stable positions of excess oxide ions within the conduction channel. Two stable interstitial positions were obtained in accordance with literature, the first one located at the very periphery of the conduction channel, neighbouring the SiO4 tetrahedral units, and the second one closer to the channel axis...
2017: Science and Technology of Advanced Materials
Sujata Deshpande, Pradeep Suryawanshi, Kunal Ahya, Rajesh Maheshwari, Samir Gupta
INTRODUCTION: Pathophysiology of pneumonia involves leakage of plasma proteins into the airways and accumulation of cytokines within the lung. Several in vitro and in vivo studies have demonstrated that this proteinaceous material and lung inflammation inhibit surfactant function. AIM: To evaluate whether exogenous surfactant therapy improves oxygenation and gas exchange in late preterm and term neonates with early onset pneumonia and respiratory failure. MATERIALS AND METHODS: This prospective interventional cohort study was conducted at a tertiary care neonatal unit...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
Phui Yee Tan, Tai Boon Tan, Hon Weng Chang, Beng Ti Tey, Eng Seng Chan, Oi Ming Lai, Badlishah Sham Baharin, Imededdine Arbi Nehdi, Chin Ping Tan
Tocotrienol microcapsules (TM) were formed by firstly preparing Pickering emulsion containing tocotrienols, which was then gelled into microcapsules using alginate and chitosan. In this study, we examined the stability of TM during storage and when applied into a model food system, i.e. yogurt. During storage at 40°C, TM displayed remarkably lower tocotrienols loss (50.8%) as compared to non-encapsulated tocotrienols in bulk oil (87.5%). When the tocotrienols were incorporated into yogurt, the TM and bulk oil forms showed a loss of 23...
February 15, 2018: Food Chemistry
Siraprapa Tongkobpetch, Noppachart Limpaphayom, Apiruk Sangsin, Thantrira Porntaveetus, Kanya Suphapeetiporn, Vorasuk Shotelersuk
Osteogenesis imperfecta (OI) is genetically heterogeneous. Mutations in COL1A1 and COL1A2 are responsible for at least 90% of the cases, which are transmitted in an autosomal dominant manner or are de novo events. We identified a Thai boy with OI whose parents were first cousins. Because the proband was the product of a consanguineous marriage, we hypothesized that he might be homozygous for a mutation in a known gene causing a recessive form of OI. Using whole exome sequencing (WES), we did not find any pathogenic mutations in any known gene responsible for an autosomal recessive form of OI...
September 21, 2017: Genetics and Molecular Biology
Mingrui Jia, Ranran Shi, Xuli Zhao, Zhijian Fu, Zhijing Bai, Tao Sun, Xuejun Zhao, Wenbo Wang, Chao Xu, Fang Yan
Mutation analysis as the gold standard is particularly important in diagnosis of osteogenesis imperfecta (OI) and it may be preventable upon early diagnosis. In this study, we aimed to analyze the clinical and genetic materials of an OI pedigree as well as to confirm the deleterious property of the mutation.A pedigree with OI was identified. All family members received careful clinical examinations and blood was drawn for genetic analyses. Genes implicated in OI were screened for mutation. The function and structure of the mutant protein were predicted using bioinformatics analysis...
September 2017: Medicine (Baltimore)
Kathleen M Kingery, Megan E Narad, H Gerry Taylor, Keith Owen Yeates, Terry Stancin, Shari L Wade
OBJECTIVE: To examine the prevalence of academic need, academic service utilization, and unmet need as well as factors associated with academic service utilization 6.8 years after traumatic brain injury (TBI) in early childhood. METHODS: Fifty-eight (16 severe, 14 moderate, 28 complicated mild) children with TBI and 72 children with orthopedic injury (OI) completed the long-term follow-up 6.8 years after injury in early childhood (ages 3-7 years). Injury group differences in rates of need for academic services, academic service utilization, and unmet need as well as factors associated with service utilization and unmet need were examined...
September 21, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
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