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https://www.readbyqxmd.com/read/28339999/bone-curvature-changes-can-predict-the-impact-of-treatment-on-cartilage-volume-loss-in-knee-osteoarthritis-data-from-a-2-year-clinical-trial
#1
Jean-Pierre Raynauld, Jean-Pierre Pelletier, Philippe Delorme, Pierre Dodin, François Abram, Johanne Martel-Pelletier
Objectives.: Knee bone curvature assessed by MRI was associated with OA cartilage loss. A recent knee OA trial demonstrated the superiority of chondroitin sulfate over celecoxib (comparator) at reducing cartilage volume loss (CVL) in the medial compartment (condyle). The main objectives were to identify which baseline bone curvature regions of interest (BCROI) best associated with CVL and investigate whether baseline BCROI and 2-year change are correlated with the protective effect of chondroitin sulphate on CVL...
March 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28335442/in-vitro-and-in-vivo-effects-of-gracilaria-verrucosa-extracts-on-osteoclast-differentiation
#2
Kwang-Jin Kim, Yong-Jin Lee, Yun-Ho Hwang, Kyung-Yun Kang, Sung-Tae Yee, Young-Jin Son
Bone remodeling, a physiological process characterized by bone formation by osteoblasts and bone resorption by osteoclasts, is important for the maintenance of healthy bone in adult humans. Osteoclasts play a critical role in bone erosion and osteoporosis and are bone-specific multinucleated cells generated through differentiation of monocyte/macrophage lineage precursors. Receptor activator of NF-κB ligand (RANKL) has been reported to induce osteoclast differentiation. In this study, we explored whether Gracilaria verrucosa extracts (GE) could affect RANKL-mediated osteoclast differentiation...
March 14, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28334780/eif4a3-deficient-human-ipscs-and-mouse-models-demonstrate-neural-crest-defects-that-underlie-richieri-costa-pereira-syndrome
#3
Emily E Miller, Gerson S Kobayashi, Camila M Musso, Miranda Allen, Felipe A A Ishiy, Luiz C de Caires Junior, Ernesto S G Guimarães, Karina Griesi-Oliveira, Roseli M Zechi-Ceide, Antonio Richieri-Costa, Debora R Bertola, Maria Rita Passos-Bueno, Debra L Silver
Biallelic loss-of-function mutations in the RNA binding protein EIF4A3 cause Richieri-Costa-Pereira syndrome (RCPS), an autosomal recessive condition mainly characterized by craniofacial and limb malformations. However, the pathogenic cellular mechanisms responsible for this syndrome are entirely unknown. Here we used two complementary approaches, patient-derived induced pluripotent stem cells (iPSCs) and conditional Eif4a3 mouse models, to demonstrate that defective Neural Crest Cell (NCC) development explains RCPS craniofacial abnormalities...
March 2, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334059/abutment-disconnection-reconnection-affects-peri-implant-marginal-bone-levels-a-meta-analysis
#4
Theofilos Koutouzis, Fatemeh Gholami, John Reynolds, Tord Lundgren, Georgios A Kotsakis
PURPOSE: Preclinical and clinical studies have shown that marginal bone loss can be secondary to repeated disconnection and reconnection of abutments that affect the peri-implant mucosal seal. The aim of this systematic review and meta-analysis was to evaluate the impact of abutment disconnections/reconnections on peri-implant marginal bone level changes. MATERIALS AND METHODS: To address this question, two reviewers independently performed an electronic search of three major databases up to October 2015 complemented by manual searches...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28333542/critical-value-of-anterior-glenoid-bone-loss-that-leads-to-recurrent-glenohumeral-instability-after-arthroscopic-bankart-repair
#5
Sang-Jin Shin, Rag Gyu Kim, Yoon Sang Jeon, Tae Hun Kwon
BACKGROUND: Generally, a glenoid bone loss greater than 20% to 25% is considered critical for poor surgical outcomes after a soft tissue repair. However, recent studies have suggested that the critical value should be lower. PURPOSE: To determine the critical value of anterior glenoid bone loss that led to surgical failure in patients with anterior shoulder instability. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: The study included 169 patients with anterior glenoid erosion...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28333394/socket-shield-technique-for-immediate-implant-placement-clinical-radiographic-and-volumetric-data-after-5%C3%A2-years
#6
Daniel Bäumer, Otto Zuhr, Stephan Rebele, Markus Hürzeler
OBJECTIVES: Implant placement immediately after tooth extraction is often accompanied by resorption of surrounding tissues. A clinical technique was developed where the buccal portion of the root is retained to preserve the periodontal ligament and bundle bone. This technique is based on animal studies showing the potential to preserve the facial tissues utilizing this approach. The purpose of this study was to gain more insight regarding the safety of the technique with regard to biological and implant-related long-term complications and to observe the clinical appearance of the peri-implant tissues...
March 23, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#7
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28332697/alpha-1-antitrypsin-inhibits-rankl-induced-osteoclast-formation-and-functions
#8
Mohammad Ahsanul Akbar, David Nardo, Mong-Jen Chen, Ahmed S Elshikha, Rubina Ahamed, Eslam M Elsayed, Claire Bigot, Lexie Shannon Holliday, Sihong Song
Osteoporosis is a global public health problem affecting more than 200 million people worldwide. We previously showed that treatment with alpha-1 antitrypsin (AAT), a multifunctional protein with anti-inflammatory properties, mitigated bone loss in an ovariectomized mouse model. However, the underlying mechanisms of the protective effect of AAT on bone tissue are largely unknown. In this study, we investigated the effect of AAT on osteoclast formation and function in vitro. Our results showed that AAT dose-dependently inhibited the formation of RANKL (receptor activator of nuclear factor κB ligand) induced osteoclasts derived from mouse bone marrow macrophages/monocyte (BMM) lineage cells and the murine macrophage cell line, RAW 264...
March 21, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28332217/imaging-for-vascular-calcification
#9
Paolo Raggi, W Charles O'Neill
Chronic decline in renal function is accompanied by deterioration of bone structure and function and progressive calcification of the vascular system. Both disease states have been linked with increased morbidity and mortality in chronic kidney disease. The severe alterations of mineral metabolism inherent with loss of renal function have an impact on vascular calcification development and progression, and several investigators have focused on ways to reduce their impact on vascular health. Imaging has contributed an important role in the assessment of vascular calcification, and the impact of various interventions aimed at curbing their progression...
March 22, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28331989/does-the-tibia-component-design-affect-the-need-for-offset-stems-in-revision-total-knee-arthroplasty
#10
X Foruria, T Schmidt-Braekling, D Arana Nabarte, M Faschingbauer, M Kasparek, F Boettner
INTRODUCTION: The stem/keel location varies between anatomic and symmetric revision tibial baseplates. The current study investigates the impact of an anatomic versus symmetric stem location on the need for offset couplers in revision total knee arthroplasty. MATERIALS AND METHODS: Hip to ankle standing radiographs and lateral radiographs of 75 patients were analyzed using digital templating software. The offset in the anterior-posterior as well as medial-lateral plane between the center of the tibial diaphysis and the stem of the tibial baseplate were determined for an anatomic and symmetric tibial baseplate, respectively...
March 22, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28331333/the-risk-reduction-of-recurrent-periodontal-pathogens-of-local-application-minocycline-hcl-2-gel-used-as-an-adjunct-to-scaling-and-root-planing-for-chronic-periodontitis-treatment
#11
Y Soeroso, T Akase, H Sunarto, Y Kemal, R Salim, M Octavia, A Viandita, J Setiawan, B M Bachtiar
BACKGROUND: The aim of this study was to evaluate the clinical and microbiological effects of local application minocycline HCl 2% gel, used as an adjunct to scaling and root planing (SRP) for treatment of chronic periodontitis (CP). CP is an inflammation of periodontal tissue that is caused mainly by bacterial infection, where periodontal destruction such as loss of attachment and bone destruction occurred. METHODS: A total of 81 subjects with moderate to severe periodontitis whose baseline clinical attachment loss (CAL) was ≥4 mm were randomly assigned to receive SRP alone (control group, N=39) or SRP followed by four times of local application of minocycline HCl gel (Periocline) once a week (test group, N=42)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28330815/antimicrobial-photodynamic-therapy-combined-to-periodontal-treatment-experimental-model
#12
Estéfani L Belinello-Souza, Letícia H Alvarenga, Cintia Lima-Leal, Patrícia Almeida, Carolina Guimarães Leite, Tairine R Lima, Jhosepher Previati-Oliveira, Lucas de Pretto, Anderson Zanardi de Freitas, Adjaci U Fernandes, Rodrigo L Marcos, Renato A Prates
BACKGROUND: Antimicrobial photodynamic therapy (aPDT) has been used as an adjuvant treatment for periodontitis. It combines a photosensitizer with a light source to induce reactive oxygen species and kill microbial cells. PpNetNI is a protoporphyrin derivative, and it has a chemical binding site at biofilm and great affinity to microbial cells. The aim of this study was to investigate the effects of aPDT as an adjuvant treatment for periodontitis. METHODS: Thirty healthy male rats Wistar (Rattus norvegicus) were used in this study (Approved by UNINOVE Ethical committee AN0029/2015)...
March 18, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#13
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28329121/very-low-calorie-diets-for-weight-loss-in-obese-older-adults-a-randomized-trial
#14
Cilla J Haywood, Luke A Prendergast, Katrina Purcell, Lauren Le Fevre, Wen Kwang Lim, Mary Galea, Joseph Proietto
Background: Obesity contributes to disability in older adults, and this is offset by weight loss and exercise. Very Low Calorie Diets (VLCDs) achieve rapid weight loss; however, these have not been rigorously evaluated in older people. Methods: A randomized trial was conducted from August 2012 through December 2015. The intervention was 12 weeks of thrice weekly exercise combined with either healthy eating advice (Ex/HE), hypocaloric diet (Ex/Diet), or VLCD (Ex/VLCD)...
February 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28328977/jmjd3-aids-in-reprogramming-of-bone-marrow-progenitor-cells-to-hepatic-phenotype-through-epigenetic-activation-of-hepatic-transcription-factors
#15
Veena Kochat, Zaffar Equbal, Prakash Baligar, Vikash Kumar, Madhulika Srivastava, Asok Mukhopadhyay
The strictly regulated unidirectional differentiation program in some somatic stem/progenitor cells has been found to be modified in the ectopic site (tissue) undergoing regeneration. In these cases, the lineage barrier is crossed by either heterotypic cell fusion or direct differentiation. Though studies have shown the role of coordinated genetic and epigenetic mechanisms in cellular development and differentiation, how the lineage fate of adult bone marrow progenitor cells (BMPCs) is reprogrammed during liver regeneration and whether this lineage switch is stably maintained are not clearly understood...
2017: PloS One
https://www.readbyqxmd.com/read/28328853/updated-association-of-tea-consumption-and-bone-mineral-density-a-meta-analysis
#16
Zhao-Fei Zhang, Jun-Long Yang, Huan-Chang Jiang, Zheng Lai, Feng Wu, Zhi-Xiang Liu
BACKGROUND: Current studies evaluating the association of tea consumption and bone mineral density (BMD) have yielded inconsistent findings. Therefore, we conducted a meta-analysis to assess the relationship between tea consumption and BMD. METHODS: The PubMed, Embase, and Cochrane Library databases were comprehensively searched, and a meta-analysis performed of all observational studies assessing the association of tea consumption and BMD. Forest plots were used to illustrate the results graphically...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28328610/removable-partial-denture-after-gunshot-injury-five-year-follow-up
#17
Eduardo Piza Pellizzer, Marcelo Coelho Goiato, Daniel Augusto de Faria Almeida, Rosse Mary Falcon-Antenucci, Cleidiel Aparecido Araujo Lemos, Victor Eduardo de Souza Batista, Fellippo Ramos Verri
The aim of this study was to report a patient of rehabilitation with removable partial denture retained by implants in-patient who suffered injury after firearm shooting. A 19-year-old man presented to the hospital of the Val Paraíso city after being hit by a bullet in the right on the face, affecting the teeth 12 to 16. The surgery to remove the shards of teeth, and bullet was performed. Surgical team opted for installation of implants without bone grafts; however, due to extensive loss of alveolar bone, only 3 tilted implants (2 Ø3...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28327697/seven-mm-long-dental-implants-in-posterior-jaws-3-year-report-of-an-ongoing-prospective-single-cohort-study
#18
Paulo Maló, Miguel de Araújo Nobre, Armando Lopes, Inês Gonçalves, Mariana Nunes
PURPOSE: To report on the outcome of 7 mm long implants in the rehabilitation of posterior areas of atrophic jaws 3 years after loading. MATERIALS AND METHODS: This prospective study included 127 patients treated with 217 implants supporting 165 fixed prostheses. Final abutments were delivered at surgery stage and in the large majority of patients (n = 116) the implants (n = 199) were loaded after 4 months. Primary outcome measures were implant success and prosthetic success calculated at patient level; secondary outcome measures were complications, and marginal bone level changes calculated at patient level...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327695/do-repeated-changes-of-abutments-have-any-influence-on-the-stability-of-peri-implant-tissues-one-year-post-loading-results-from-a-multicentre-randomised-controlled-trial
#19
Marco Esposito, Eriberto Bressan, Maria Gabriella Grusovin, Ferdinando D'Avenia, Konrad Neumann, Luca Sbricoli, Giuseppe Luongo
PURPOSE: To evaluate the influence of at least three abutment changes in conventionally loaded implants against placement of a definitive abutment in immediately non-occlusal loaded implants on hard and soft tissue changes. MATERIALS AND METHODS: Eighty patients requiring one single crown or one fixed partial prosthesis supported by a maximum of three implants were randomised, after implants were placed with more than 35 Ncm, according to a parallel group design to receive definitive abutments which were loaded immediately (definitive abutment or immediate loading group) or transmucosal abutments...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28327692/immediate-immediate-delayed-6%C3%A2-weeks-and-delayed-4%C3%A2-months-post-extractive-single-implants-1-year-post-loading-data-from-a-randomised-controlled-trial
#20
Marco Esposito, Giovanni Zucchelli, Gioacchino Cannizzaro, Luigi Checchi, Carlo Barausse, Anna Trullenque-Eriksson, Pietro Felice
PURPOSE: To compare the clinical outcome of single implants placed immediately after tooth extraction with implants placed 6 weeks after tooth extraction (immediate-delayed placement), and with implants placed after 4-month extraction and socket healing (delayed placement). MATERIALS AND METHODS: Two-hundred and ten (210) patients requiring a single implant-supported crown to replace a tooth to be extracted were randomised to receive immediate post-extractive implants (70 patients), immediate-delayed implants at 6 weeks (70 patients), and delayed implants after 4 months of healing (70 patients) according to a parallel group design...
2017: European Journal of Oral Implantology
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