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https://www.readbyqxmd.com/read/29648890/phelligridin-d-loaded-oral-nanotube-titanium-implant-enhances-osseointegration-and-prevents-osteolysis-in-rat-mandible
#1
Ji-Eun Kim, Jyoti Shrestha Takanche, Jeong-Seok Kim, Min-Ho Lee, Jae-Gyu Jeon, Il-Song Park, Ho-Keun Yi
Poor bone quality and osteolysis are the major causes of implant failure in dentistry. Here, this study tested the effect of phelligridin D-loaded nanotubes titanium (Ti) for bone formation around the dental implants. The purpose of this study was to enhance osseointegration of phelligridin D-loaded implant into the bone for bone formation and prevention of osteolysis. Cell viability, crystal violet staining, Western blot, alizarin red S staining, alkaline phosphatase activity, tartrate-resistant acid phosphatase staining, micro-computed tromography (μ-CT), hematoxylin and eosin (H&E) and immunohistochemical staining were used in vitro and in vivo to test the biocompatibility of phelligridin D...
April 12, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29462060/iliac-crest-bone-graft-for-minimally-invasive-transforaminal-lumbar-interbody-fusion-a-prospective-analysis-of-inpatient-pain-narcotics-consumption-and-costs
#2
Brittany E Haws, Benjamin Khechen, Ankur S Narain, Fady Y Hijji, Kaitlyn L Cardinal, Jordan A Guntin, Kern Singh
STUDY DESIGN: Retrospective Analysis OBJECTIVE.: The aim of this study was to determine whether an association between increased acute pain, postoperative time, and direct hospital costs exists between the use of iliac crest bone grafting (ICBG) and bone morphogenic protein (BMP)-2 following a primary, single-level minimally invasive transforaminal lumbar interbody fusion (MIS TLIF). SUMMARY OF BACKGROUND DATA: ICBG has been associated with enhanced fusion rates...
February 16, 2018: Spine
https://www.readbyqxmd.com/read/29339095/patterning-the-gastrointestinal-epithelium-to-confer-regional-specific-functions
#3
REVIEW
Cayla A Thompson, Ann DeLaForest, Michele A Battle
The gastrointestinal (GI) tract, in simplest terms, can be described as an epithelial-lined muscular tube extending along the cephalocaudal axis from the oral cavity to the anus. Although the general architecture of the GI tract organs is conserved from end to end, the presence of different epithelial tissue structures and unique epithelial cell types within each organ enables each to perform the distinct digestive functions required for efficient nutrient assimilation. Spatiotemporal regulation of signaling pathways and downstream transcription factors controls GI epithelial morphogenesis during development to confer essential regional-specific epithelial structures and functions...
March 15, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29311578/promoting-induced-pluripotent-stem-cell-driven-biomineralization-and-periodontal-regeneration-in-rats-with-maxillary-molar-defects-using-injectable-bmp-6-hydrogel
#4
Ke-Hung Chien, Yuh-Lih Chang, Mong-Lien Wang, Jen-Hua Chuang, Ya-Chi Yang, Ming-Cheng Tai, Chien-Ying Wang, Yung-Yang Liu, Hsin-Yang Li, Jiang-Torng Chen, Shou-Yen Kao, Hen-Li Chen, Wen-Liang Lo
Periodontal disease may cause considerable destruction of alveolar bone, periodontal ligaments (PDLs) and cementum and even lead to progressive oral dysfunction. Periodontal tissue regeneration is the ultimate goal of periodontal disease treatment to reconstruct both structures and functions. However, the regenerative efficiency is low, possibly due to the lack of a proper periodontal microenvironment. In this study, we applied an injectable and thermosensitive chitosan/gelatin/glycerol phosphate hydrogel to provide a 3D environment for transplanted stem cells and to enhance stem cell delivery and engraftment...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29303122/microarray-analysis-of-the-gene-expression-profile-in-triethylene-glycol-dimethacrylate-treated-human-dental-pulp-cells
#5
D Torun, Z Ö Torun, K Demirkaya, M Sarper, M P Elçi, F Avcu
OBJECTIVE: Triethylene glycol dimethacrylate (TEGDMA) is an important resin monomer commonly used in the structure of dental restorative materials. Recent studies have shown that unpolymerized resin monomers may be released into the oral environment and cause harmful biological effects. We investigated changes in the gene expression profiles of TEGDMA-treated human dental pulp cells (hDPCs) following short- (1-day) and long-term (7-days) exposure. MATERIALS AND METHODS: HDPCs were exposed to a noncytotoxic concentration of TEGDMA, and gene expression profiles were evaluated by microarray analysis...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29237390/chronopharmacokinetic-evaluation-of-budesonide-multiparticulate-systems
#6
Sowjanya Battu, Prasanna Raju Yalavarthi, G V Subbareddy, Uma Maheswara Rao, Jyothshna Devi Katamreddy, Harini Cowdary Vadlamudi
Poor oral absorption of budesonide limits design of its solid oral dosage form. With this context, multiparticulate pulsatile system of budesonide for chronotherapy of nocturnal asthma was aimed in this study. Initially, solid dispersions of budesonide (BD) using sodium starch glycolate (SSG) and guar gum (GG) were developed and characterized. Uniform sized non-pariel seeds (~400 µm) were coated with solid dispersions to obtain immediate (BMP) and controlled release pellets by solution layering technique. Pulsatile drug release pellets (BMPP) were obtained by coating the controlled release pellets with Eudragit L100 and RS 100...
December 12, 2017: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/29201897/combined-treatment-with-an-anticoagulant-and-a-vasodilator-prevents-steroid-associated-osteonecrosis-of-rabbit-femoral-heads-by-improving-hypercoagulability
#7
Fang Cao, Ge Liu, Wei Wang, Benjie Wang, Xiaowei Wei, Faqiang Lu, Fan Yang, Kai Kang, Yongxuan Wang, Jiahui Yang, Kairong Qin, Dewei Zhao
Steroid-associated osteonecrosis of the femoral head remains a challenging problem in orthopedics worldwide. One pathomechanism is ischemia of the femoral head, as a result of thrombus formation and vasoconstriction. The present study investigates the effects of combination prevention with enoxaparin and EGb 761 on steroid-associated ONFH in rabbits. Rabbits were randomly divided into 5 groups (control group, model group, enoxaparin group, ginkgo group, and combination group). With the exception of the control group, the groups of rabbits were modeled with lipopolysaccharide and methylprednisolone acetate...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29154973/inhibition-of-bmp-signaling-overcomes-acquired-resistance-to-cetuximab-in-oral-squamous-cell-carcinomas
#8
Jinlong Yin, Ji-Eun Jung, Sun Il Choi, Sung Soo Kim, Young Taek Oh, Tae-Hoon Kim, Eunji Choi, Sun Joo Lee, Hana Kim, Eun Ok Kim, Yu Sun Lee, Hee Jin Chang, Joo Yong Park, Yeejeong Kim, Tak Yun, Kyun Heo, Youn-Jae Kim, Hyunggee Kim, Yun-Hee Kim, Jong Bae Park, Sung Weon Choi
Despite expressing high levels of the epidermal growth factor receptor (EGFR), a majority of oral squamous cell carcinoma (OSCC) patients show limited response to cetuximab and ultimately develop drug resistance. However, mechanism underlying cetuximab resistance in OSCC is not clearly understood. Here, using a mouse orthotopic xenograft model of OSCC, we show that bone morphogenic protein-7-phosphorylated Smad-1, -5, -8 (BMP7-p-Smad1/5/8) signaling contributes to cetuximab resistance. Tumor cells isolated from the recurrent cetuximab-resistant xenograft models exhibited low EGFR expression but extremely high levels of p-Smad1/5/8...
February 1, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29097030/benzofuran-dihydropyridine-hybrids-a-new-class-of-potential-bone-anabolic-agents
#9
Ram K Modukuri, Dharmendra Choudhary, Sampa Gupta, K Bhaskara Rao, Sulekha Adhikary, Tanuj Sharma, Mohammad Imran Siddiqi, Ritu Trivedi, Koneni V Sashidhara
A series of novel benzofuran-dihydropyridine hybrids were designed by molecular hybridization approach and evaluated for bone anabolic activities. Among the screened library, ethyl 4-(7-(sec-butyl)-2-(4-methylbenzoyl)benzofuran-5-yl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (compound 21) significantly enhanced the ALP production and mineralized nodule formation, which are primary requisites in the process of in vitro osteogenesis. Oral administration of compound 21 at 10 mg.kg-1  day-1 for two weeks led to restoration of trabecular bone microarchitecture in drill hole fracture model by significantly increasing BV/TV and Tb...
December 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29096714/isolation-and-prolonged-expansion-of-oral-mesenchymal-stem-cells-under-clinical-grade-gmp-compliant-conditions-differentially-affects-stemness-properties
#10
Athina Bakopoulou, Danae Apatzidou, Eleni Aggelidou, Evangelia Gousopoulou, Gabriele Leyhausen, Joachim Volk, Aristeidis Kritis, Petros Koidis, Werner Geurtsen
BACKGROUND: Development of clinical-grade cell preparations is central to meeting the regulatory requirements for cellular therapies under good manufacturing practice-compliant (cGMP) conditions. Since addition of animal serum in culture media may compromise safe and efficient expansion of mesenchymal stem cells (MSCs) for clinical use, this study aimed to investigate the potential of two serum/xeno-free, cGMP culture systems to maintain long-term "stemness" of oral MSCs (dental pulp stem cells (DPSCs) and alveolar bone marrow MSCs (aBMMSCs)), compared to conventional serum-based expansion...
November 2, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29057714/dose-dependent-effect-of-radiation-on-resorbable-blast-material-titanium-implants-an-experimental-study-in-rabbits
#11
Gülnihal Emrem Doğan, Zekai Halici, Emre Karakus, Burak Erdemci, Akgün Alsaran, Irfan Cinar
BACKGROUND: Radiotherapy is a commonly used treatment modality in head and neck cancer; however, it also negatively affects healthy structures. Direct damage to oral soft and hard tissue frequently occurs with radiotherapy. In this study, we aimed to evaluate the effect of radiotherapy on bone surrounding titanium dental implants via biomechanical and molecular methods. MATERIALS AND METHODS: Fifty-four implants were inserted in the left tibiae of 18 adult male New Zealand rabbits (3 implants in each rabbit)...
October 23, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28964656/-the-dorsoventral-inversion-an-attempt-of-synthesis
#12
REVIEW
S Louryan, N Vanmuylder
The invertebrates, with known exception of echinoderms, are hyponeurian and protostomian. By contrast, echinoderms, chordates and vertebrate are epineurian and deuterostomian. Convinced of the uniqueness origin of all species, Etienne Geoffroy Saint Hilaire (1772-1844), had postulated a complete inversion of body plan to explain this difference. He had to face up to the hostility of the fixist Georges Cuvier (1763-1832). Much later, famous embryologists such as Maurice Caullery still believed that this idea was erroneous...
September 27, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28866105/dietary-phlorizin-enhances-osteoblastogenic-bone-formation-through-enhancing-%C3%AE-catenin-activity-via-gsk-3%C3%AE-inhibition-in-a-model-of-senile-osteoporosis
#13
Lucia Dwi Antika, Eun-Jung Lee, Yun-Ho Kim, Min-Kyung Kang, Sin-Hye Park, Dong Yeon Kim, Hyeongjoo Oh, Yean-Jung Choi, Young-Hee Kang
Osteoporosis is one of the most prevalent forms of age-related bone diseases. Increased bone loss with advancing age has become a grave public health concern. This study examined whether phlorizin and phloretin, dihydrochalcones in apple peels, inhibited senile osteoporosis through enhancing osteoblastogenic bone formation in cell-based and aged mouse models. Submicromolar phloretin and phlorizin markedly stimulated osteoblast differentiation of MC3T3-E1 cells with increased transcription of Runx2 and osteocalcin...
November 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28835018/effect-of-fgf-2-tgf-%C3%AE-1-and-bmps-on-teno-ligamentogenesis-and-osteo-cementogenesis-of-human-periodontal-ligament-stem-cells
#14
Sun-Yi Hyun, Ji-Hye Lee, Kyung-Jung Kang, Young-Joo Jang
The periodontal ligament (PDL) is the connective tissue between tooth root and alveolar bone containing mesenchymal stem cells (MSC). It has been suggested that human periodontal ligament stem cells (hPDLSCs) differentiate into osteo/cementoblast and ligament progenitor cells. The periodontitis is a representative oral disease where the PDL tissue is collapsed, and regeneration of this tissue is important in periodontitis therapy. Fibroblast growth factor-2 (FGF-2) stimulates proliferation and differentiation of fibroblastic MSCs into various cell lineages...
August 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28831098/rna-seq-analysis-on-chicken-taste-sensory-organs-an-ideal-system-to-study-organogenesis
#15
Xiaogang Cui, Brett Marshall, Ning Shi, Shi-You Chen, Romdhane Rekaya, Hong-Xiang Liu
RNA-Seq is a powerful tool in transcriptomic profiling of cells and tissues. We recently identified many more taste buds than previously appreciated in chickens using molecular markers to stain oral epithelial sheets of the palate, base of oral cavity, and posterior tongue. In this study, RNA-Seq was performed to understand the transcriptomic architecture of chicken gustatory tissues. Interestingly, taste sensation related genes and many more differentially expressed genes (DEGs) were found between the epithelium and mesenchyme in the base of oral cavity as compared to the palate and posterior tongue...
August 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28812969/functional-expression-of-bmp7-receptors-in-oral-epithelial-cells-interleukin-17f-production-in-response-to-bmp7
#16
Kensuke Nishio, Yasumasa Ozawa, Hisanori Ito, Takashi Kifune, Tatsuya Narita, Toshimitsu Iinuma, Nobuhito Gionhaku, Masatake Asano
BACKGROUND: Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) superfamily. Recently, BMP7 has been demonstrated to be produced by salivary glands and contribute to embryonic branching in mice. The BMP7 in saliva is thought to be delivered to the oral cavity and is expected to contact with stratified squamous epithelial cells which line the surface of oral mucosa. In this study, we attempted to investigate the effects of BMP7 on oral epithelial cells...
October 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28804438/green-tea-extract-induces-genes-related-to-browning-of-white-adipose-tissue-and-limits-weight-gain-in-high-energy-diet-fed-rat
#17
Li-Han Chen, Yi-Wen Chien, Chung-Tiang Liang, Ching-Hung Chan, Meng-Han Fan, Hui-Yu Huang
Background: A wealth of research has reported on the anti-obesity effects of green tea extract (GTE). Although browning of white adipose tissue (WAT) has been reported to attenuate obesity, no study has disclosed the effects of GTE on browning in Sprague Dawley rats. Objectives: The aims of the study were to investigate the effects of GTE on anti-obesity and browning, and their underlying mechanisms. Methods: Four groups of rats (n=10/group) were used including a normal diet with vehicle treatment, and a high-energy diet (HED) with vehicle or GTE by oral gavage at 77...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28760336/dietary-magnesium-supplementation-prevents%C3%A2-and%C3%A2-reverses-vascular-and-soft-tissue%C3%A2-calcifications-in-uremic-rats
#18
Juan M Diaz-Tocados, Alan Peralta-Ramirez, María E Rodríguez-Ortiz, Ana I Raya, Ignacio Lopez, Carmen Pineda, Carmen Herencia, Addy Montes de Oca, Noemi Vergara, Sonja Steppan, M Victoria Pendon-Ruiz de Mier, Paula Buendía, Andrés Carmona, Julia Carracedo, Juan F Alcalá-Díaz, Joao Frazao, Julio M Martínez-Moreno, Antonio Canalejo, Arnold Felsenfeld, Mariano Rodriguez, Escolástico Aguilera-Tejero, Yolanda Almadén, Juan R Muñoz-Castañeda
Although magnesium has been shown to prevent vascular calcification in vitro, controlled in vivo studies in uremic animal models are limited. To determine whether dietary magnesium supplementation protects against the development of vascular calcification, 5/6 nephrectomized Wistar rats were fed diets with different magnesium content increasing from 0.1 to 1.1%. In one study we analyzed bone specimens from rats fed 0.1%, 0.3%, and 0.6% magnesium diets, and in another study we evaluated the effect of intraperitoneal magnesium on vascular calcification in 5/6 nephrectomized rats...
November 2017: Kidney International
https://www.readbyqxmd.com/read/28652368/antagonistic-bmp-cwnt-signaling-in-the-cnidarian-nematostella-vectensis-reveals-insight-into-the-evolution-of-mesoderm
#19
Naveen Wijesena, David K Simmons, Mark Q Martindale
Gastrulation was arguably the key evolutionary innovation that enabled metazoan diversification, leading to the formation of distinct germ layers and specialized tissues. Differential gene expression specifying cell fate is governed by the inputs of intracellular and/or extracellular signals. Beta-catenin/Tcf and the TGF-beta bone morphogenetic protein (BMP) provide critical molecular signaling inputs during germ layer specification in bilaterian metazoans, but there has been no direct experimental evidence for a specific role for BMP signaling during endomesoderm specification in the early branching metazoan Nematostella vectensis (an anthozoan cnidarian)...
July 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28560004/impact-of-impaired-cardiac-function-on-the-progression-of-chronic-kidney-disease-role-of-pharmacomodulation-of-valsartan
#20
Chih-Chao Yang, Hon-Kan Yip, Kuan-Hung Chen, Cheuk-Kwan Sun, Yen-Ta Chen, Han-Tan Chai, Pei-Hsun Sung, Hsin-Ju Chiang, Sheung-Fat Ko, Sheng-Ying Chung, Chih-Hung Chen, Kun-Chen Lin, Pao-Yuan Lin, Jiunn-Jye Sheu
Although chronic kidney disease (CKD) is known to aggravate cardiovascular disease in the setting of cardiorenal syndrome (CRS), the impact of impaired cardiac function on the progression of CKD has seldom been reported. This study tested the impact of acute myocardial infarction on a rodent CKD model and the therapeutic effect of valsartan in this setting. Adult male Sprague-Dawley rats (n = 50) equally divided into group 1 (sham control), group 2 (CKD induced by 5/6 nephrectomy), group 3 (AMI by ligation of left coronary artery), group 4 (CKD+AMI), group 5 (CKD+AMI+valsartan, orally 10 mg/kg/day)...
2017: American Journal of Translational Research
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