keyword
MENU ▼
Read by QxMD icon Read
search

Alveolar repair

keyword
https://www.readbyqxmd.com/read/28747097/tissue-engineering-strategies-to-improve-osteogenesis-in-the-juvenile-swine-alveolar-cleft-model
#1
Montserrat Caballero, Donna C Jones, Zhengyuan Shan, Sajjad Soleimani, John A van Aalst
Alveolar <b>(gumline)</b> clefts are the most common congenital bone defect in humans, affecting 1 in 700 live births. Treatment <b>to repair these bony</b> defects relies on autologous, <b>cancellous</b> bone transfer from the iliac crest. This harvest requires a second surgical site <b>with increased </b>surgical time associated with potential complications, <b>while providing only limited cancellous bone</b>. Improvements in treatment protocols that avoid these limitations would be beneficial to patients with clefts and other craniofacial bone defects...
July 26, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28746285/a-comparative-analysis-of-recombinant-human-bone-morphogenetic-protein-2-with-a-demineralized-bone-matrix-versus-iliac-crest-bone-graft-for-secondary-alveolar-bone-grafts-in-patients-with-cleft-lip-and-palate-review-of-501-cases
#2
Jeffrey A Hammoudeh, Artur Fahradyan, Daniel J Gould, Fan Liang, Thomas Imahiyerobo, Leo Urbinelli, JoAnna T Nguyen, William Magee, Stephen Yen, Mark M Urata
BACKGROUND: Alveolar cleft reconstruction using iliac crest bone graft is considered standard of care for children with complete cleft lip and palate at the time of mixed dentition. Harvesting bone may result in donor-site morbidity and additional operating time and length of hospitalization. Recombinant human bone morphogenetic protein (rhBMP)-2 with a demineralized bone matrix is an alternative bone source for alveolar cleft reconstruction. The authors investigated the outcomes of rhBMP-2/demineralized bone matrix versus iliac crest bone graft for alveolar cleft reconstruction by reviewing postoperative surgical complications and cleft closure...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28737769/local-lung-hypoxia-determines-epithelial-fate-decisions-during-alveolar-regeneration
#3
Ying Xi, Thomas Kim, Alexis N Brumwell, Ian H Driver, Ying Wei, Victor Tan, Julia R Jackson, Jianming Xu, Dong-Kee Lee, Jeffrey E Gotts, Michael A Matthay, John M Shannon, Harold A Chapman, Andrew E Vaughan
After influenza infection, lineage-negative epithelial progenitors (LNEPs) exhibit a binary response to reconstitute epithelial barriers: activating a Notch-dependent ΔNp63/cytokeratin 5 (Krt5) remodelling program or differentiating into alveolar type II cells (AEC2s). Here we show that local lung hypoxia, through hypoxia-inducible factor (HIF1α), drives Notch signalling and Krt5(pos) basal-like cell expansion. Single-cell transcriptional profiling of human AEC2s from fibrotic lungs revealed a hypoxic subpopulation with activated Notch, suppressed surfactant protein C (SPC), and transdifferentiation toward a Krt5(pos) basal-like state...
July 24, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28737562/dynamic-cleft-maxillary-orthopedics-and-periosteoplasty-25-patients-25-years
#4
Frederick N Lukash, Lauren B Shikowitz-Behr, Michael Schwartz, Frank Tuminelli
In 1985 this cleft team, dissatisfied with the treatment and results from cleft lip and palate repair, began a longitudinal long-term study using dynamic maxillary orthopedics and periosteoplasty as was originally described by Drs Millard and Latham. All cases were carefully documented through adolescence, including clinical assessments, orthodontic, radiographic, and cephalometric analyses. In 1998, in this journal, we published our data on 35 complete unilateral and 10 complete bilateral cleft patients. At that time facial growth was following normal cephalometric patterns...
July 22, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28732066/inhibition-of-pulmonary-%C3%AE-carotene-15-15-oxygenase-expression-by-glucocorticoid-involves-ppar%C3%AE
#5
Xiaoming Gong, Raju Marisiddaiah, Lewis P Rubin
β-carotene 15,15'-oxygenase (BCO1) catalyzes the first step in the conversion of dietary provitamin A carotenoids to vitamin A. This enzyme is expressed in a variety of developing and adult tissues, suggesting that its activity may regulate local retinoid synthesis. Vitamin A and related compounds (retinoids) are critical regulators of lung epithelial development, integrity, and injury repair. A balance between the actions of retinoids and glucocorticoids (GCs) promotes normal lung development and, in particular, alveolarization...
2017: PloS One
https://www.readbyqxmd.com/read/28708467/gender-differences-in-surgical-treatment-of-patients-with-cleft-lip-and-palate
#6
Anna Paganini, Camilla Hörfelt, Hans Mark
Numerous gender-based differences in medical treatment have been recognized due to conscious or unconscious perceptions, i.e. gender bias. The aim of the present study was to investigate whether gender differences exist in the surgical treatment of patients with cleft lip and palate (CLP) anomalies. This study is a retrospective review of 235 consecutive patients with non-syndromic unilateral CLP or bilateral CLP born between 1966 and 1986. Each chart was reviewed, and 2178 surgical procedures were registered and categorized as primary surgery (primary lip, palatal and alveolar repair) or secondary surgery (aesthetic and functional revision)...
July 14, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28705941/tyk2-as-a-target-for-immune-regulation-in-human-viral-bacterial-pneumonia
#7
Johanna Berg, Katja Zscheppang, Diana Fatykhova, Mario Tönnies, Torsten T Bauer, Paul Schneider, Jens Neudecker, Jens C Rückert, Stephan Eggeling, Maria Schimek, Achim D Gruber, Norbert Suttorp, Stefan Hippenstiel, Andreas C Hocke
The severity and lethality of influenza A virus (IAV) infections is frequently aggravated by secondary bacterial pneumonia. However, the mechanisms in human lung tissue that provoke this increase in fatality are unknown and therapeutic immune modulatory options are lacking.We established a human lung ex vivo co-infection model to investigate innate immune related mechanisms contributing to the susceptibility of secondary pneumococcal pneumonia.We revealed that type I and III interferon (IFN) inhibits Streptococcus pneumoniae-induced interleukin (IL)-1β release...
July 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28691752/mineral-trioxide-aggregate-improves-healing-response-of-periodontal-tissue-to-injury-in-mice
#8
I Vidovic Zdrilic, I O de Azevedo Queiroz, B G Matthews, J E Gomes-Filho, M Mina, I Kalajzic
BACKGROUND AND OBJECTIVE: Mineral trioxide aggregate (MTA) is a biomaterial used in endodontic procedures as it exerts beneficial effects on regenerative processes. In this study, we evaluate the effect of MTA on healing of periodontal ligament (PDL) and surrounding tissue, following injury, in a transgenic mouse model and on the differentiation of murine mesenchymal progenitor cells in vitro. MATERIAL AND METHODS: We used an inducible Cre-loxP in vivo fate mapping approach to examine the effects of MTA on the contributions of descendants of cells expressing the αSMA-CreERT2 transgene (SMA9(+) ) to the PDL and alveolar bone after experimental injury to the root furcation on the maxillary first molars...
July 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28671983/isoflurane-promotes-phagocytosis-of-apoptotic-neutrophils-through-ampk-mediated-adam17-mer-signaling
#9
Xueke Du, Chunling Jiang, Yang Lv, Randal O Dull, You-Yang Zhao, David E Schwartz, Guochang Hu
A patient's recovery from lung inflammatory injury or development of multi-system organ failure is determined by the host's ability to resolve inflammation and repair tissue damage, both of which require the clearance of apoptotic neutrophils by macrophages (efferocytosis). Here, we investigated the effects of isoflurane on macrophage efferocytosis and resolution of lung inflammatory injury. Treatment of murine bone marrow-derived macrophages (BMDMs) or alveolar macrophages with isoflurane dramatically enhanced phagocytosis of apoptotic neutrophils...
2017: PloS One
https://www.readbyqxmd.com/read/28662821/the-role-of-matrix-metalloproteinases-in-development-repair-and-destruction-of-the-lungs
#10
Amanda Y Hendrix, Farrah Kheradmand
Normal gas exchange after birth requires functional lung alveolar units that are lined with epithelial cells, parts of which are intricately fused with microvascular capillaries. A significant phase of alveolar lung development occurs in the perinatal period, continues throughout early stages in life, and requires activation of matrix-remodeling enzymes. Failure to achieve an optimum number of alveoli during lung maturation can cause several untoward medical consequences including disabling obstructive and/or restrictive lung diseases that limit physiological endurance and increase mortality...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28661183/differential-expression-of-vegf-axxx-isoforms-is-critical-for-development-of-pulmonary-fibrosis
#11
Shaney L Barratt, Thomas Blythe, Caroline Jarrett, Khadija Ourradi, Golda Shelley-Fraser, Michael J Day, Yan Qiu, Steve Harper, Toby M Maher, Sebastian Oltean, Thomas J Hames, Chris J Scotton, Gavin I Welsh, David O Bates, Ann B Millar
RATIONALE: Fibrosis following lung injury is related to poor outcome and Idiopathic Pulmonary Fibrosis (IPF) can be regarded as an exemplar. Vascular Endothelial Growth Factor-A (VEGF-A) has been implicated in this context but there are conflicting reports as to whether it is a contributory or protective factor. Differential splicing of the VEGF-A gene produces multiple functional isoforms including VEGF-A165a, and VEGF-A165b a member of the inhibitory family. To-date there is no clear information on the role of VEGF in IPF...
June 29, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28657777/epithelial-deletion-of-sulf2-exacerbates-bleomycin-induced-lung-injury-inflammation-and-mortality
#12
Xinping Yue
Epithelial injury has been proposed to be the initiating factor in the pathogenesis of idiopathic pulmonary fibrosis (IPF). We have shown previously that heparan sulfate (HS) 6-O-endosulfatase 2 (Sulf2) is overexpressed in the hyperplastic type II alveolar epithelial cells (AECs) in the IPF lungs. By removing 6-O-sulfates from specific HS intra-chain sites, Sulf2 modulates the functions of many growth factors and cytokines. In this study we hypothesized that Sulf2 plays a regulatory role in alveolar epithelial injury and repair, using the murine bleomycin model...
June 28, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28653561/incidence-of-secondary-surgery-after-modified-furlow-palatoplasty-a-20-year-single-surgeon-case-series
#13
Stephen R Chorney, Emily Commesso, And Sherard Tatum
Objective To determine the occurrence of velopharyngeal insufficiency (VPI) requiring surgery and fistula repair after primary palatoplasty using a "modified" Furlow technique. Study Design Case series with chart review. Setting Academic multidisciplinary cleft and craniofacial center. Subjects and Methods Children younger than 18 years at presentation, with unrepaired cleft palate, with or without cleft lip, including submucous clefts, who underwent palatoplasty were included. No cleft patients having primary repair were excluded...
June 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28637674/oxidative-stress-destabilizes-protein-arginine-methyltransferase-4-via-glycogen-synthase-kinase-3%C3%AE-to-impede-lung-epithelial-cell-migration
#14
Xiuying Li, Yandong Lai, Jin Li, Mingyi Zou, Chunbin Zou
Oxidative stress impacts normal cellular function leading to the pathogenesis of various diseases including pulmonary illnesses. Protein arginine methyltransferase 4 (PRMT4) is critical for normal lung alveolar epithelial cell development; however, the regulation of PRMT4 within such pulmonary diseases has yet to be elucidated. Using biochemical approaches, we uncovered that peroxide (H2O2) treatment decreases PRMT4 protein stability in murine lung epithelial (MLE12) cells to impede cell migration. Protein kinase glycogen synthase kinase 3β (GSK-3β) interacts with PRMT4 and catalyzes PRMT4 T132 phosphorylation that protects PRMT4 from ubiquitin proteasomal degradation...
June 21, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28619646/time-dependent-effects-of-hjp272-an-endothelin-receptor-antagonist-in-bleomycin-induced-pulmonary-fibrosis
#15
Xingjian Liu, Nikhil Khadtare, Hardek Patel, Ralph Stephani, Jerome Cantor
Using a lipopolysaccharide (LPS) model of acute lung injury, we have previously shown that endothelin-1 (ET-1), a potent mediator of vasoconstriction, may act as a "gatekeeper" for the influx of inflammatory cells into the lung. To further investigate the potential of ET-1 to limit the progression of lung injury, hamsters were treated with an endothelin receptor antagonist (ERA), HJP272, either 1 h prior to intratracheal instillation of bleomycin (BLM) or 24 h afterwards. Lung injury and repair were examined by measuring the following parameters: 1) histopathological changes; 2) neutrophil content in bronchoalveolar lavage fluid (BALF); 3) lung collagen content; 4) tumor necrosis factor receptor 1 (TNFR1) expression by BALF macrophages; 5) BALF levels of: a) transforming growth factor beta-1 (TGF-β1), b) stromal cell-derived factor 1 (commonly referred to as CXCL12), and c) platelet-derived growth factor BB (PDGF-BB); 6) alveolar septal cell apoptosis (as measured by the TUNEL assay)...
June 12, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28618253/hypoxia-inducible-factor-1%C3%AE-signaling-promotes-repair-of-the-alveolar-epithelium-after-acute-lung-injury
#16
Jazalle McClendon, Nicole L Jansing, Elizabeth F Redente, Aneta Gandjeva, Yoko Ito, Sean P Colgan, Aftab Ahmad, David W H Riches, Harold A Chapman, Robert J Mason, Rubin M Tuder, Rachel L Zemans
During acute respiratory distress syndrome, epithelial cells, primarily alveolar type (AT) I cells, die and slough off the basement membrane, resulting in enhanced permeability. ATII cells proliferate and spread onto the denuded basement membrane to reseal the barrier. Repair of the alveolar epithelium is critical for clinical recovery; however, the mechanisms underlying ATII cell proliferation and spreading are not well understood. We hypothesized that hypoxia-inducible factor (HIF)1α promotes proliferation and spreading of ATII cells during repair after lung injury...
June 12, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28617737/3d-cone-beam-computed-tomography-volumetric-outcomes-of-rhbmp-2-demineralized-bone-matrix-vs-iliac-crest-bone-graft-for-alveolar-cleft-reconstruction
#17
Fan Liang, Stephen Yen, Thomas Imahiyerobo, Luke Sanborn, Leia Yen, Daniel Yen, Sheila Nazarian, Breanna Jedrzejewski, Mark Urata, Jeffrey Hammoudeh
BACKGROUND: Recent studies indicate that recombinant human bone morphogenetic protein (rhBMP-2) in a demineralized bone matrix scaffold (MS) is a comparable alternative to iliac bone autograft in the setting of secondary alveolar cleft repair. Post-reconstruction occlusal radiographs demonstrate improved bone stock when rhBMP-2/MS is used, but lack the capacity to evaluate bone growth in three dimensions. This study uses cone beam computed tomography (CBCT) to provide the first clinical evaluation of volumetric and density comparisons between these two treatment modalities...
June 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28615712/cell-specific-expression-of-aquaporin-5-aqp5-in-alveolar-epithelium-is-directed-by-gata6-sp1-via-histone-acetylation
#18
Per Flodby, Changgong Li, Yixin Liu, Hongjun Wang, Megan E Rieger, Parviz Minoo, Edward D Crandall, David K Ann, Zea Borok, Beiyun Zhou
Epigenetic regulation of differentiation-related genes is poorly understood. We previously reported that transcription factors GATA6 and Sp1 interact with and activate the rat proximal 358-bp promoter/enhancer (p358P/E) of lung alveolar epithelial type I (AT1) cell-specific gene aquaporin-5 (Aqp5). In this study, we found that histone deacetylase (HDAC) inhibitor suberoylanilide hydroxamic acid (SAHA) increased AQP5 expression and Sp1-mediated transcription of p358P/E. HDAC3 overexpression inhibited Sp1-mediated Aqp5 activation, while HDAC3 knockdown augmented AQP5 protein expression...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28613912/molecular-and-immune-biomarkers-in-acute-respiratory-distress-syndrome-a-perspective-from-members-of-the-pulmonary-pathology-society
#19
Vera Luiza Capelozzi, Timothy Craig Allen, Mary Beth Beasley, Philip T Cagle, Don Guinee, Lida P Hariri, Aliya N Husain, Deepali Jain, Sylvie Lantuejoul, Brandon T Larsen, Ross Miller, Mari Mino-Kenudson, Mehrad Mitra, Kirtee Raparia, Anja Roden, Frank Schneider, Lynette M Sholl, Maxwell Lawrence Smith
Acute respiratory distress syndrome (ARDS) is a multifactorial syndrome with high morbidity and mortality rates, characterized by deficiency in gas exchange and lung mechanics that lead to hypoxemia, dyspnea, and respiratory failure. Histologically, ARDS is characterized by an acute, exudative phase, combining diffuse alveolar damage and noncardiogenic edema, followed by a later fibroproliferative phase. Despite an enhanced understanding of ARDS pathogenesis, the capacity to predict the development of ARDS and to risk-stratify patients with the disease remains limited...
June 14, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28610485/effects-of-the-bilayer-nano-hydroxyapatite-mineralized-collagen-guided-bone-regeneration-membrane-on-site-preservation-in-dogs
#20
Yi Sun, Chengyue Wang, Qixin Chen, Hai Liu, Chao Deng, Peixue Ling, Fu-Zhai Cui
This study was aimed at assessing the effects of the porous mineralized collagen plug with or without the bilayer mineralized collagen-guided bone regeneration membrane on alveolar ridge preservation in dogs. The third premolars in the bilateral maxilla of mongrel dogs ( N = 12) were extracted. Twenty-four alveolar sockets were thus randomly divided into three groups: membrane + collagen plug (MP, n = 8), nonmembrane + collagen plug (NP, n = 8) and blank group without any implantation (BG, n = 8)...
January 1, 2017: Journal of Biomaterials Applications
keyword
keyword
67466
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"