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https://www.readbyqxmd.com/read/28549244/ll-37-induced-human-mast-cell-activation-through-g-protein-coupled-receptor-mrgx2
#1
Yangyang Yu, Yuanyuan Zhang, Yarui Zhang, Yihong Lai, Wenwen Chen, Zhangang Xiao, Wei Zhang, Meiling Jin, Bo Yu
Human LL-37 is an important class of cationic antimicrobial peptide (CAP) that is known to stimulate mast cell activation. While many studies have been conducted on LL-37, to date little is known about the functional receptors for LL-37-induced human mast cell activation, in particular in terms of the release of de novo synthesized mediators. Thus, the aim of the present study is to identify the functional receptors for LL-37-induced human mast cell activation in terms of the degranulation and release of de novo synthesized mediators and investigate the downstream signalling pathways involved in mast cell activation...
May 23, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28546707/clinico-pathological-study-of-limb-salvage-surgery-for-osteosarcoma-experience-in-a-rural-cancer-center
#2
Divya Vijayanarasimha, Sangeetha K Nayanar, Syam Vikram, Vijay M Patil, Satheesh Babu, Satheesan B
Although recent multimodality therapeutic protocols have led to improved survival in osteosarcoma (OS), the outcome still remains dismal. Ongoing international multicentric trials on OS aim to randomize patients for optimum management, based on histological response to NACT. The pathologic response to neoadjuvant chemotherapy (NACT) is the most important factor predicting prognosis. In this study of 23 cases of limb salvage surgery post neoadjuvant chemotherapy, mean age was 18.3 years, with male predominance...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28544081/direct-medical-costs-of-severe-hypoglycaemic-events-in-patients-with-type-2-diabetes-in-england-a-retrospective-database-study
#3
Tim Holbrook, Yuexin Tang, Romita Das, R Ravi Shankar, Kaan Tunceli, Jean Williams, Larry Radican, Sarah E Holden, Chris Ll Morgan, James Piercy, Craig J Currie
AIMS: Hypoglycaemia in patients with diabetes can be induced by insulins and sulfonylureas. We assessed the real-world impact of specific monotherapy and combination regimens on hypoglycaemic events requiring hospitalisation and related secondary costs to the English healthcare system. METHODS: This retrospective observational study used the Clinical Practice Research Datalink with linked hospital admission data during 2008-2012. Patients with type 2 diabetes mellitus (T2DM) using antihyperglycaemic agents (AHAs) were assigned to mutually exclusive subgroups (insulin- and non-insulin-containing regimens; treatment groups of interest; age group) based on treatment at index date (date of first AHA prescription)...
May 23, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28542639/rodents-and-humans-are-able-to-detect-the-odour-of-l-lactate
#4
Valentina Mosienko, Andy J Chang, Natalia Alenina, Anja G Teschemacher, Sergey Kasparov
L-Lactate (LL) is an essential cellular metabolite which can be used to generate energy. In addition, accumulating evidence suggests that LL is used for inter-cellular signalling. Some LL-sensitive receptors have been identified but we recently proposed that there may be yet another unknown G-protein coupled receptor (GPCR) sensitive to LL in the brain. Olfactory receptors (ORs) represent the largest family of GPCRs and some of them are expressed outside the olfactory system, including brain, making them interesting candidates for non-olfactory LL signalling...
2017: PloS One
https://www.readbyqxmd.com/read/28542100/global-spinal-alignment-in-patients-with-cervical-spondylotic-myelopathy
#5
Go Yoshida, Abdulmajeed Alzakri, Vincent Pointillart, Louis Boissiere, Ibrahim Obeid, Yukihiro Matsuyama, Jean Marc Vital, Olivier Gille
STUDY DESIGN: Prospective radiographic analysis of cervical spondylotic myelopathy (CSM) OBJECTIVE.: To clarify the pathophysiology of CSM, and use the characteristic of global spinal alignment for determining the surgical strategy. SUMMARY OF BACKGROUND DATA: Radiographic evaluation of CSM, in general, comprises cervical magnetic resonance imaging (MRI) and regional cervical radiography, which cannot distinguish between cervical hyperlodorsis with spinopelvic compensation and cervical lordorsis with normal global alignment...
May 24, 2017: Spine
https://www.readbyqxmd.com/read/28541502/serum-ll-37-level-is-associated-with-severity-of-bronchiolitis-and-viral-etiology
#6
Jonathan M Mansbach, Kohei Hasegawa, Nadim J Ajami, Joseph F Petrosino, Pedro A Piedra, Courtney N Tierney, Janice A Espinola, Carlos A Camargo
Background: LL-37 is a host defense peptide with antimicrobial and immunomodulatory properties. We examined the relation of serum LL-37 levels to the severity of bronchiolitis and viral etiology. Methods: We performed a 17-center prospective cohort study of infants hospitalized with bronchiolitis over 3 winters (2011-2014). Site teams collected clinical data, nasopharyngeal aspirates (NPA) and serum. We used real-time PCR to test NPAs for 16 viruses. We tested serum for LL-37...
May 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28538444/changes-in-cervical-alignment-after-multilevel-schwab-grade-ii-thoracolumbar-osteotomies-for-adult-spinal-deformity
#7
George M Ghobrial, Nathan H Lebwohl, Barth A Green, Joseph P Gjolaj
STUDY DESIGN: Retrospective Cohort OBJECTIVE.: To describe changes in cervical alignment(CA) and deformity (CD) after multilevel Schwab Grade II Osteotomies for adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: Reciprocal cervical and global changes after ASD surgery have not been previous described in the setting of multilevel osteotomy. METHODS: Patients with long-segment (> 5 levels) fusion and osteotomy for ASD were radiographically evaluated...
May 19, 2017: Spine
https://www.readbyqxmd.com/read/28538303/examining-fundamental-movement-competency-and-closed-chain-upper-extremity-dynamic-balance-in-swimmers
#8
Garrett S Bullock, Nate Brookreson, Amy M Knab, Robert J Butler
Bullock, GS, Brookreson, N, Knab, AM, and Butler, RJ. Examining fundamental movement competency and closed-chain upper-extremity dynamic balance in swimmers. J Strength Cond Res 31(6): 1544-1551, 2017-Abnormal fundamental movement patterns and upper-quarter dynamic balance are proposed mechanisms affecting athletic performance and injury risk. There are few studies investigating functional movement and closed-chain upper-extremity dynamic stability in swimmers. The purpose of this study was to determine differences in fundamental movement competency and closed-chain upper-extremity dynamic balance, using the Functional Movement Screen (FMS) and Upper-Quarter Y Balance Test (YBT-UQ), of high school (HS; n = 70) and collegiate (COL; n = 70) swimmers...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537348/a-cadaver-study-to-evaluate-the-accuracy-of-a-new-3d-mini-optical-navigation-tool-for-total-hip-arthroplasty
#9
Jonathan M Vigdorchik, Michael B Cross, Eric A Bogner, Theodore T Miller, Jeffrey M Muir, Ran Schwarzkopf
BACKGROUND: Accurate measurement of acetabular cup position (CP), changes in leg length (LL), and offset (OS) are paramount in ensuring proper sizing and implantation of components during total hip arthroplasty (THA). LL/OS inaccuracies can cause low back pain, neurological deficits, and patient dissatisfaction, while inaccurate positioning of the acetabular cup can lead to instability, dislocation, and, ultimately, revision surgery. The objective of this study was to evaluate the accuracy of a mini-navigation tool in measuring CP and LL/OS differential during THA...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28532248/effects-of-drop-sets-with-resistance-training-on-increases-in-muscle-csa-strength-and-endurance-a-pilot-study
#10
Hayao Ozaki, Atsushi Kubota, Toshiharu Natsume, Jeremy P Loenneke, Takashi Abe, Shuichi Machida, Hisashi Naito
To investigate the effects of a single high-load (80% of one repetition maximum [1RM]) set with additional drop sets descending to a low-load (30% 1RM) without recovery intervals on muscle strength, endurance, and size in untrained young men. Nine untrained young men performed dumbbell curls to concentric failure 2-3 days per week for 8 weeks. Each arm was randomly assigned to one of the following three conditions: 3 sets of high-load (HL, 80% 1RM) resistance exercise, 3 sets of low-load [LL, 30% 1RM] resistance exercise, and a single high-load (SDS) set with additional drop sets descending to a low-load...
May 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28530582/proton-transfer-reaction-mass-spectrometry-ptr-ms-for-the-authentication-of-regionally-unique-south-african-lamb
#11
Sara W Erasmus, Magdalena Muller, Martin Alewijn, Alex H Koot, Saskia M van Ruth, Louwrens C Hoffman
The volatile fingerprints of South African lamb meat and fat were measured by proton-transfer mass spectrometry (PTR-MS) to evaluate it as an authentication tool. Meat and fat of the Longissimus lumborum (LL) of lambs from six different regions were assessed. Analysis showed that the volatile fingerprints were affected by the origin of the meat. The classification of the origin of the lamb was achieved by examining the calculated and recorded fingerprints in combination with chemometrics. Four different partial least squares discriminant analysis (PLS-DA) models were fitted to the data to classify lamb meat and fat samples into "region of origin" (six different regions) and "origin" (Karoo vs...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28527364/effect-of-extended-aging-on-calpain-1-and-2-activity-in-beef-longissimus-lumborum-and-semimembranosus-muscles
#12
M J Colle, M E Doumit
Our objectives were to (Exp. 1) determine the effect of postmortem aging (2, 3, 4, 14, 28, and 42days) on calpain-1 and -2 activity in beef longissimus lumborum (LL) and semimembranosus (SM) steaks and (Exp. 2) determine the effect of postmortem aging for two extended periods (63 and 84days) on calpain-2 activity of beef SM steaks. Calpain-1 was not active in either muscle following 14days of aging. Native calpain-2 activity decreased (P<0.001) with longer aging periods for both the LL and SM in Exp. 1 and for the SM in Exp...
May 12, 2017: Meat Science
https://www.readbyqxmd.com/read/28526374/impact-of-high-dose-vitamin-d3-on-plasma-free-25-hydroxyvitamin-d-concentrations-and-antimicrobial-peptides-in-critically-ill-mechanically-ventilated-adults
#13
Jenny E Han, Jessica A Alvarez, Jennifer L Jones, Vin Tangpricha, Mona A Brown, Li Hao, Lou Ann S Brown, Greg S Martin, Thomas R Ziegler
OBJECTIVES: High-dose vitamin D3 increases plasma total 25-hydroxyvitamin D [25(OH)D] in critically ill, ventilated patients; however, to our knowledge, the effect on plasma levels of free (nonprotein-bound) 25(OH)D has not been investigated in critical illness. Moreover, the relationship of free 25(OH)D and the regulation of endogenous antimicrobial peptides (AMPs) remains unknown. The aims of this study were to determine in critically ill adults with respiratory failure the effect of previous high-dose regimens of vitamin D3 on free 25(OH)D concentrations, the relationship of free 25(OH)D with circulating cathelicidin (LL-37) and human beta-defensin-2 (hBD-2), and the associations between plasma levels of free 25(OH)D and these AMPs to alveolar macrophage phagocytosis function...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28525841/ll-37-derived-short-antimicrobial-peptide-kr-12-a5-and-its-d-amino-acid-substituted-analogs-with-cell-selectivity-anti-biofilm-activity-synergistic-effect-with-conventional-antibiotics-and-anti-inflammatory-activity
#14
Eun Young Kim, Ganesan Rajasekaran, Song Yub Shin
KR-12-a5 is a 12-meric α-helical antimicrobial peptide (AMP) with dual antimicrobial and anti-inflammatory activities designed from human cathelicidin LL-37. We designed and synthesized a series of d-amino acid-substituted analogs of KR-12-a5 with the aim of developing novel α-helical AMPs that possess higher cell selectivity than KR-12-a5, while maintaining the anti-inflammatory activity. d-amino acid incorporation into KR-12-a5 induced a significant improvement in the cell selectivity by 2.6- to 13.6-fold as compared to KR-12-a5, while maintaining the anti-inflammatory activity...
May 11, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28524126/-impact-of-sagittal-balance-parameters-on-life-quality-in-elderly-and-senile-patients-after-surgery-for-degenerative-lumbar-spine-stenosis
#15
V S Klimov, I I Vasilenko, A V Evsyukov, E V Amelina
INTRODUCTION: As the life span and proportion of people over 65 years increase, the incidence of degenerative lumbar spine stenosis grows proportionally. Various parameters of the spinopelvic relationships are used to predict surgical treatment outcomes in patients with degenerative spine diseases. There are no unified protocols for evaluation, in terms of the sagittal balance, of surgical treatment outcomes in elderly patients. PURPOSE: To study the impact of sagittal balance parameters on the life quality of elderly and senile patients after surgery for degenerative stenosis of the lumbar spine...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28523382/adult-spinal-deformity-effectiveness-of-interbody-lordotic-cages-to-restore-disc-angle-and-spino-pelvic-parameters-through-completely-mini-invasive-trans-psoas-and-hybrid-approach
#16
Giuseppe Barone, Laura Scaramuzzo, Antonino Zagra, Fabrizio Giudici, Andrea Perna, Luca Proietti
PURPOSE: The aim of the study is to assess and quantify the effectiveness of interbody lordotic cages applied by trans-psoas approach to improve radiographic parameters, showing the differences between completely mini-invasive and hybrid approach. METHODS: We collected data of 65 patients affected by degenerative lumbar deformity/diseases and underwent mini-invasive lateral interbody fusion followed by percutaneous (group A, completely mini-invasive) or open (group B, hybrid) posterior instrumentation...
May 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28522402/prophylactic-vertebral-cement-augmentation-at-the-uppermost-instrumented-vertebra-and-rostral-adjacent-vertebra-for-the-prevention-of-proximal-junctional-kyphosis-and-failure-following-long-segment-fusion-for-adult-spinal-deformity
#17
George M Ghobrial, Daniel G Eichberg, John Paul G Kolcun, Karthik Madhavan, Nathan H Lebwohl, Barth A Green, Joseph P Gjolaj
BACKGROUND CONTEXT: Proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) are common problems after long segment (>5 levels) thoracolumbar instrumented fusions in the treatment of adult spinal deformity (ASD). No specific surgical strategy has definitively been shown to lower the risk of PJK as the result of a multifactorial etiology. PURPOSE: To assess the incidence of PJK and PJF in patients treated with prophylactic polymethylmethacrylate(PMMA) cement augmentation at the uppermost instrumented vertebrae(UIV) and rostral adjacent vertebrae(UIV+1)...
May 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28521628/cd36-positive-b-lymphoblasts-predict-poor-outcome-in-children-with-b-lymphoblastic-leukemia
#18
Joanna G Newton, John T Horan, Scott Newman, Michael R Rossi, Rhett P Ketterling, Sunita I Park
Objective We observed that pediatric patients with B lymphoblastic leukemia which expressed CD36 at diagnosis seemed to have worse outcome than patients whose blasts did not. Here, we describe the patient, disease characteristics, pathological, molecular, and genetic features and outcomes of patients with CD36+ B-LL compared to patients with CD36- B-LL. Methods We retrospectively reviewed all flow cytometry reports from September 2008 to December 2015 to identify patients diagnosed at our institution with CD36 expression on B lymphoblasts...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28521337/perspectives-for-clinical-use-of-engineered-human-host-defense-antimicrobial-peptides
#19
María Eugenia Pachón-Ibáñez, Younes Smani, Jerónimo Pachón, Javier Sánchez-Céspedes
Infectious diseases caused by bacteria, viruses or fungi are among the leading causes of death worldwide. The emergence of drug-resistance mechanisms, especially among bacteria, threatens the efficacy of all current antimicrobial agents, some of them already ineffective. As a result, there is an urgent need for new antimicrobial drugs. Host defense antimicrobial peptides (HDPs) are natural occurring and well-conserved peptides of innate immunity, broadly active against Gram-negative and Gram-positive bacteria, viruses and fungi...
May 1, 2017: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28516260/-dietary-exposure-assessment-of-substances-in-foods-the-bfr-meal-study-the-first-german-total-diet-study
#20
REVIEW
Irmela Sarvan, Michaela Bürgelt, Oliver Lindtner, Matthias Greiner
The dietary exposure of a population to chemical substances is estimated based on representative consumption data and data on the occurrence of substances in foods. Consumption data in Germany for different age groups are provided by the National Nutrition Survey ll, VELS, EsKiMo and the ongoing KiESEL study. The data for the levels of substances in foods is currently obtained from the German food monitoring programme (Lebensmittel-Monitoring) and the German Food Composition Table (Bundeslebensmittelschlüssel) and is not sufficient for a comprehensive evaluation of dietary exposure in Germany...
May 17, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
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