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https://www.readbyqxmd.com/read/29779212/periodontal-regeneration-via-chemo-attractive-constructs
#1
Xinjie Cai, Fang Yang, X Frank Walboomers, Yining Wang, John A Jansen, Jeroen J J P van den Beucken, Adelina S Plachokova
AIM: Chemo-attractants, such as stromal cell-derived factor-1α (SDF-1α), can offer an advantage for periodontal regeneration by recruiting the patient's own stem cells to stimulate self-repair. We here developed a chemo-attractive construct for periodontal regeneration using SDF-1α and evaluated its efficacy in vivo. MATERIALS AND METHODS: SDF-1α was loaded on gelatin sponge and tested in vitro for SDF-1α release. Subsequently, SDF-1α constructs were implanted into rat periodontal defects for 1 and 6 weeks, with unloaded materials and empty defects as controls...
May 19, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29777223/card9-s12n-facilitates-the-production-of-il-5-by-alveolar-macrophages-for-the-induction-of-type-2-immune-responses
#2
Xia Xu, Jin-Fu Xu, Guoxing Zheng, Hai-Wen Lu, Jie-Lin Duan, Wei Rui, Jian-Hong Guan, Li-Qing Cheng, Dan-Dan Yang, Ming-Chao Wang, Quan-Zhen Lv, Jian-Xiong Li, Xueqiang Zhao, Chun-Xia Chen, Peng Shi, Xin-Ming Jia, Xin Lin
The adaptor CARD9 functions downstream of C-type lectin receptors (CLRs) for the sensing of microbial infection, which leads to responses by the TH 1 and TH 17 subsets of helper T cells. The single-nucleotide polymorphism rs4077515 at CARD9 in the human genome, which results in the substitution S12N (CARD9S12N ), is associated with several autoimmune diseases. However, the function of CARD9S12N has remained unknown. Here we generated CARD9S12N knock-in mice and found that CARD9S12N facilitated the induction of type 2 immune responses after engagement of CLRs...
May 18, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29766516/radiographic-bone-loss-in-a-scottish-non-smoking-type-1-diabetes-mellitus-population-a-bitewing-radiographic-study
#3
Anastasios Plessas, Douglas P Robertson, Penny J Hodge
BACKGROUND: The dental complications of uncontrolled diabetes include reduced salivary flow rate, candidiasis and periodontal manifestations. A recent meta-analysis concluded that diabetes patients have a significantly higher severity, but not extent, of destructive periodontal disease than non-diabetes people. The authors reported that most type-1 diabetes studies using dental radiographic data have not controlled for confounding factors such as smoking. The aim of this cross-sectional study was to compare radiographic alveolar bone loss between type 1 diabetes (T1DM) and non-diabetes (NDM) participants in a Scottish non-smoking population...
May 15, 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29765337/plethysmographic-loops-a-window-on-the-lung-pathophysiology-of-copd-patients
#4
Dejan Radovanovic, Matteo Pecchiari, Fabio Pirracchio, Camilla Zilianti, Edgardo D'Angelo, Pierachille Santus
Plethysmographic alveolar pressure-flow ( P alv - F ) loops contain potentially relevant information about the pathophysiology of chronic obstructive pulmonary disease (COPD), but no quantitative analysis of these loops during spontaneous breathing has ever been performed. The area of the loop's inspiratory ( A ins ) and expiratory portion ( A exp ), and the difference between the end-expiratory and end-inspiratory alveolar pressure (Δ P alv ) were measured in 20 young, 20 elderly healthy subjects, and 130 stable COPD patients...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29738746/histological-and-histomorphometric-response-to-socketkap%C3%A2-and-socketkage%C3%A2-used-for-ridge-preservation-and-repair-results-from-a-randomized-controlled-clinical-trial
#5
Neema Bakhshalian, Alaa Abdelhamid, Yoon Jeong Park, Homayoun H Zadeh
PURPOSE: This study investigated the histologic tissue response to SocketKAP and SocketKAGE as novel devices designed for ridge preservation. MATERIALS AND METHODS: This randomized controlled clinical trial recruited participants from among patients who presented to a university dental clinic. The study protocol entailed randomization into 5 intervention groups after tooth extraction: unassisted healing of intact sockets (group A), SocketKAP (group B), anorganic bovine bone minerals (ABBM) plus SocketKAP (group C), unassisted healing of sockets with dehiscence (group D), and SocketKAGE plus ABBM plus SocketKAP (group E)...
April 12, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29719383/differential-anti-inflammatory-effects-of-budesonide-and-a-p38-mapk-inhibitor-azd7624-on-copd-pulmonary-cells
#6
Andrew Higham, Pradeep Karur, Natalie Jackson, Danen M Cunoosamy, Paul Jansson, Dave Singh
Background: The effects of anti-inflammatory drugs in COPD patients may vary between different cell types. The aim of the current study was to assess the anti-inflammatory effects of the corticosteroid budesonide and a p38 MAPK inhibitor (AZD7624) on different cell types obtained from COPD patients and healthy controls. Methods: Eight healthy smokers, 16 COPD infrequent exacerbators, and 16 frequent COPD exacerbators (≥2 exacerbations in the last year) were recruited for bronchoscopy and blood sampling...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29709437/the-effects-of-an-open-lung-approach-during-one-lung-ventilation-on-postoperative-pulmonary-complications-and-driving-pressure-a-descriptive-multicenter-national-study
#7
Javier Belda, Carlos Ferrando, Ignacio Garutti
OBJECTIVE: Thoracic surgical procedures are associated with an increased risk of postoperative pulmonary complications (PPCs), which seem to be related directly to intraoperative driving pressure. The authors conducted this study to describe the incidence of PPCs in patients in whom an individualized open-lung approach was applied during one-lung ventilation. DESIGN: This was a prospective, multicenter, national descriptive study. SETTING: Thoracic surgery patients undergoing one-lung ventilation...
March 27, 2018: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29697011/influence-of-the-vibralung-acoustical-percussor-on-pulmonary-function-and-sputum-expectoration-in-individuals-with-cystic-fibrosis
#8
Courtney M Wheatley, Sarah E Baker, Cori M Daines, Hanna Phan, Marina G Martinez, Wayne J Morgan, Eric M Snyder
BACKGROUND: The Vibralung Acoustical Percussor is a new airway clearance therapy (ACT) utilizing intrapulmonary sound waves in addition to positive expiratory pressure (PEP). We evaluated the safety of the Vibralung and collected preliminary data on its ability to mediate sputum expectoration in individuals with cystic fibrosis (CF). METHODS: Over two separate studies, 10 and 11 mild to moderate CF patients were recruited for study I and II, respectively. Study I: Vibralung was used for 20 min with either no sound (NS: PEP only) or sound (S: PEP and sound) on randomized visits...
January 2018: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/29695326/r-phycoerythrin-labeled-mannheimia-haemolytica-for-the-simultaneous-measurement-of-phagocytosis-and-intracellular-reactive-oxygen-species-production-in-bovine-blood-and-bronchoalveolar-lavage-cells
#9
Camila F Batista, Fernando N Souza, Kamila R Santos, Eduardo M Ramos Sanchez, Luiza Campos Reis, Heloisa G Bertagnon, Maiara G Blagitz, Renata C Gomes, Andrey P Lage, Marcos B Heinemann, Alice M M P Della Libera
The present study aimed to validate the use of R-phycoerythrin (R-PE)-labeled Mannheimia haemolytica to simultaneously stimulate phagocytosis and intracellular production of reactive oxygen species (ROS) by blood phagocytes in bronchoalveolar lavage (BAL) fluid. Initially, R-PE-labeled M. haemolytica was inactivated using a water bath at 60 °C for 60 min. Afterwards, R-PE labelling of bacteria was confirmed by flow cytometry. The geometric mean fluorescence intensity of R-PE-labeled bacteria (FL2 detector, 585 ± 42 nm) was analyzed by flow cytometry and was 41...
February 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29694408/vitexin-attenuates-lipopolysaccharide-induced-acute-lung-injury-by-controlling-the-nrf2-pathway
#10
Ying Lu, Ting Yu, Jingyao Liu, Lina Gu
BACKGROUND: A major feature of acute lung injury (ALI) is excessive inflammation in the lung. Vitexin is an active component from medicinal plants which has antioxidant and anti-inflammatory activities. Oxidative stress and inflammation play important roles in the pathophysiological processes in ALI. In the current study, we investigate the effect and potential mechanisms of Vitexin on lipopolysaccharide (LPS)-induced ALI. METHODS: ALI was induced by LPS intratracheal instillation in C57BL/6 wild-type mice and Nrf2 gene knocked down (Nrf2-/-) mice...
2018: PloS One
https://www.readbyqxmd.com/read/29691422/pulmonary-effects-of-adjusting-tidal-volume-to-actual-or-ideal-body-weight-in-ventilated-obese-mice
#11
Elise Guivarch, Guillaume Voiriot, Anahita Rouzé, Stéphane Kerbrat, Jeanne Tran Van Nhieu, Philippe Montravers, Bernard Maitre, Armand Mekontso Dessap, Mathieu Desmard, Jorge Boczkowski
Obese patients could be more susceptible to mechanical ventilation (MV)-induced lung injury than non-obese patients due to weight-dependent changes in lung properties. The aim of this study was therefore to evaluate the pulmonary effects of 2 hours low VT MV in a diet-induced obese mice model, with VT calculated on either the actual body weight (VT aw) or the ideal body weight (VT iw) . First, we hypothesized that a MV with VT aw would be associated with altered lung mechanics and an increased lung inflammation...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29680775/numb-chin-syndrome-a-reflection-of-malignancy-or-a-harbinger-of-mronj-a-multicenter-experience
#12
Leonzio Fortunato, Massimo Amato, Michele Simeone, Francesco Bennardo, Selene Barone, Amerigo Giudice
INTRODUCTION: Numb chin syndrome (NCS) or mental neuropathy (MN) is a disorder characterized by sensory neuropathy on the distribution of the inferior alveolar nerve or mental nerve. The most frequent causes are of odontogenic origin (infections, wrong therapies). Other etiologies are related to primary tumor, metastasis, osteoradionecrosis and medication-related osteonecrosis of the jaw (MRONJ). The aim of this study is to highlight the clinical importance of NCS as one of the first symptoms of cancer or as consequence of drug therapy...
April 20, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29671604/neuropilin-2-regulates-airway-inflammatory-responses-to-inhaled-lipopolysaccharide
#13
Robert M Immormino, David C Lauzier, Hideki Nakano, Michelle L Hernandez, Neil E Alexis, Andrew L Ghio, Stephen L Tilley, Claire M Doerschuk, David B Peden, Donald N Cook, Timothy P Moran
Neuropilins are multifunctional receptors that play important roles in immune regulation. Neuropilin-2 (NRP2) is expressed in the lungs, but whether it regulates airway immune responses is unknown. Here, we report that Nrp2 is weakly expressed by alveolar macrophages (AM) in the steady-state, but is dramatically up-regulated following in vivo lipopolysaccharide (LPS) inhalation. Ex vivo treatment of human AM with LPS also increased NRP2 mRNA expression and cell-surface display of NRP2 protein. LPS-induced Nrp2 expression in AM was dependent upon the MyD88 signaling pathway and the transcription factor nuclear factor kappa B (NFκB)...
April 19, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29667749/effect-of-lysm-macrophage-depletion-on-lung-pathology-in-mice-with-chronic-bronchitis
#14
Yogesh Saini, Brandon W Lewis, Dongfang Yu, Hong Dang, Alessandra Livraghi-Butrico, Fabio Del Piero, Wanda K O'Neal, Richard C Boucher
Macrophages (MΦ) are key sentinels of respiratory exposure to inhaled environmental stimuli. In normal "healthy" tissues, MΦ are believed to be a dormant cell type that, upon exposure to stress-causing stimuli, may get activated to exhibit pro- or anti-inflammatory roles. To test whether stress present in chronic bronchitic (CB) airways triggers MΦ to manifest protective or detrimental responses, the DTA+ (LysM-regulated Diphtheria Toxin A expressing) strain with partial MΦ-deficiency was crossed with the Scnn1b-Tg mouse model of CB and the progenies were studied at 4-5 weeks of age...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29663373/nampt-expression-in-osteoblasts-controls-osteoclast-recruitment-in-alveolar-bone-remodeling
#15
Bassam Hassan, Brigitte Baroukh, Annie Llorens, Julie Lesieur, Sandy Ribbes, Catherine Chaussain, Jean-Louis Saffar, Marjolaine Gosset
In bone remodeling, osteoclasts are recruited via increased production of RANKL (receptor activator of nuclear factor-κB ligand) and migrate to the bone surface, aided by matrix metalloproteinases (MMPs). NAMPT (nicotinamide phosphoribosyl transferase), which catalyzes the rate-limiting step in the NAD+ salvage pathway, increases during in vitro osteogenic differentiation and inhibits RANKL-induced osteoclast differentiation. Alveolar bone loss, due to disturbance of the remodeling process, is a major feature of periodontitis...
April 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29658900/reply-to-alveolar-recruitment-manoeuvres-after-cardiac-surgery
#16
Gerardo Tusman, Cecilia Acosta, Silvina Longo, Fernando Suarez-Sipmann
No abstract text is available yet for this article.
January 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29658899/alveolar-recruitment-manoeuvres-after-cardiac-surgery
#17
Antonio M Esquinas, Luca S De Santo
No abstract text is available yet for this article.
January 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29627118/alveolar-and-bronchial-nitric-oxide-in-chronic-obstructive-pulmonary-disease-and-asthma-copd-overlap
#18
Bernardino Alcázar-Navarrete, Francisca Castellano Miñán, Pablo Santiago Díaz, Oliveiro Ruiz Rodríguez, Pedro J Romero Palacios
INTRODUCTION: Exhaled nitric oxide (FENO ) measurements differentiate COPD phenotypes from asthma-COPD overlap (ACO). To date, no study has been conducted to determine whether alveolar and bronchial components differ in this group of patients. METHODS: This was an observational cross-sectional study recruiting ambulatory COPD patients. FENO was measured, differentiating alveolar (CANO ) from bronchial (JawNO ) components using a multiple-flow technique. CANO and JawNO values were compared between eosinophilic COPD patients (defined as ≥ 300 eosinophils/μL in peripheral blood test, or ≥ 2% eosinophils or ≥ 3% eosinophils), and a linear regression analysis was performed to determine clinical and biological variables related to these measurements...
April 4, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29623357/membrane-microdomains-regulate-nlrp10-and-nlrp12-dependent-signalling-in-a549-cells-challenged-with-cigarette-smoke-extract
#19
Dhirendra P Singh, Gagandeep Kaur, Prathyusha Bagam, Rakeysha Pinkston, Sanjay Batra
Chronic obstructive pulmonary disease (COPD) is predicted to become the third leading cause of death and disability worldwide by 2030; with cigarette smoking (active or passive) being one of the chief cause of its occurrence. Cigarette smoke exposure has been found to result in excessive inflammation and tissue injury, which might lead to COPD, although the exact pathophysiology of the disease remains elusive. While previous studies have demonstrated the role of membrane-bound Toll-like receptors (TLRs) in cigarette smoke (CS)-induced inflammation, scant information is available about the role of cytosolic NOD-like receptors (NLRs) in regulating CS-mediated inflammatory responses...
April 6, 2018: Archives of Toxicology
https://www.readbyqxmd.com/read/29610986/soluble-mucus-component-clca1-modulates-expression-of-leukotactic-cytokines-and-bpifa1-in-murine-alveolar-macrophages-but-not-in-bone-marrow-derived-macrophages
#20
Nancy A Erickson, Kristina Dietert, Jana Enders, Rainer Glauben, Geraldine Nouailles, Achim D Gruber, Lars Mundhenk
The secreted airway mucus cell protein chloride channel regulator, calcium-activated 1, CLCA1, plays a role in inflammatory respiratory diseases via as yet unidentified pathways. For example, deficiency of CLCA1 in a mouse model of acute pneumonia resulted in reduced cytokine expression with less leukocyte recruitment and the human CLCA1 was shown to be capable of activating macrophages in vitro. Translation of experimental data between human and mouse models has proven problematic due to several CLCA species-specific differences...
April 2, 2018: Histochemistry and Cell Biology
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