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https://www.readbyqxmd.com/read/29786836/initiating-life-long-aerobic-exercise-4-5-days-week-before-or-near-age-50-years-is-this-the-holy-grail-of-preventing-age-related-central-artery-stiffness
#1
Gary L Pierce
Stiffening of the large elastic central arteries, including the aorta and carotid arteries, occurs with advancing age in sedentary adults and predicts cardiovascular disease (CVD) events independent of blood pressure and other risk factors. This article is protected by copyright. All rights reserved.
May 22, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29786559/three-dimensional-bioprinting-of-stem-cell-derived-tissues-for-human-regenerative-medicine
#2
REVIEW
Gregor Skeldon, Baltasar Lucendo-Villarin, Wenmiao Shu
Stem cell technology in regenerative medicine has the potential to provide an unlimited supply of cells for drug testing, medical transplantation and academic research. In order to engineer a realistic tissue model using stem cells as an alternative to human tissue, it is essential to create artificial stem cell microenvironment or niches. Three-dimensional (3D) bioprinting is a promising tissue engineering field that offers new opportunities to precisely place stem cells within their niches layer-by-layer...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29785959/common-carotid-artery-diameter-and-risk-of-cardiovascular-events-and-mortality-pooled-analyses-of-four-cohort-studies
#3
Sanaz Sedaghat, Thomas T van Sloten, Stéphane Laurent, Gérard M London, Bruno Pannier, Maryam Kavousi, Francesco Mattace-Raso, Oscar H Franco, Pierre Boutouyrie, M Arfan Ikram, Coen D A Stehouwer
Carotid arterial diameter enlargement is a manifestation of arterial remodeling and may be a risk factor for cardiovascular disease (CVD). We evaluated the association between carotid artery diameter and risk of stroke, coronary heart disease, CVD, and all-cause mortality and explored whether the associations could be explained by processes involved in arterial remodeling, that is, blood pressure-related media thickening, arterial stiffness, arterial wall stress, and atherosclerosis. We included 4887 participants (mean age 67±9 years; 54% women) from 4 cohort studies: Rotterdam Study, NEPHROTEST, Hoorn Study, and a study by Blacher et al...
May 21, 2018: Hypertension
https://www.readbyqxmd.com/read/29785871/strategies-to-improve-impact-efficiency-in-football-kicking
#4
James C A Peacock, Kevin Ball
In football, kicking with high ball velocity can increase scoring opportunities and reduce the likelihood of interception. Efficient energy transfer from foot to ball during impact is important to attain a high ball velocity. It is considered impact efficiency can be increased by reducing the change in ankle plantarflexion during foot-ball impact. However, conflicting evidence exists, questioning its effectiveness as a coaching cue. The aim of the present study was to systematically analyse joint stiffness, foot velocity and impact location with a mechanical kicking machine to determine if change in ankle plantarflexion during foot-ball impact and ball velocity are influenced...
May 22, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29785393/monitoring-methotrexate-induced-liver-fibrosis-in-patients-with-psoriasis-utility-of-transient-elastography
#5
REVIEW
Harriet S Cheng, Marius Rademaker
Increasingly, existing evidence indicates that methotrexate-associated liver injury is related to comorbid risk factors such as diabetes, alcoholism, and obesity, rather than to methotrexate itself. Despite this fact, significant effort continues to be expended in the monitoring of low-dose methotrexate in patients with psoriasis. The gold standard investigation has been liver biopsy, but this is associated with significant morbidity and mortality. As methotrexate-induced liver injury is uncommon, the risk/benefit ratio of liver biopsy has been questioned...
2018: Psoriasis: Targets and Therapy
https://www.readbyqxmd.com/read/29785178/functionally-graded-bone-and-tendon-like-polyurethane-for-rotator-cuff-repair
#6
Dai Fei Elmer Ker, Dan Wang, Anthony William Behn, Evelyna Tsi Hsin Wang, Xu Zhang, Benjamin Yamin Zhou, Ángel Enrique Mercado-Pagán, Sungwoo Kim, John Kleimeyer, Burhan Gharaibeh, Yaser Shanjani, Drew Nelson, Marc Safran, Emilie Cheung, Phil Campbell, Yunzhi Peter Yang
Critical considerations in engineering biomaterials for rotator cuff repair include bone-tendon-like mechanical properties to support physiological loading and biophysicochemical attributes that stabilize the repair site over the long-term. In this study, UV-crosslinkable polyurethane based on quadrol (Q), hexamethylene diisocyante (H), and methacrylic anhydride (M; QHM polymers), which are free of solvent, catalyst, and photoinitiator, is developed. Mechanical characterization studies demonstrate that QHM polymers possesses phototunable bone- and tendon-like tensile and compressive properties (12-74 MPa tensile strength, 0...
May 2018: Advanced Functional Materials
https://www.readbyqxmd.com/read/29784595/comparative-proteome-analysis-of-the-capsule-from-patients-with-frozen-shoulder
#7
Yoshihiro Hagiwara, Masaru Mori, Kenji Kanazawa, Akira Ando, Yutaka Yabe, Masashi Koide, Takuya Sekiguchi, Nobuyuki Itaya, Masahiro Tsuchiya, Eiji Itoi
BACKGROUND: The etiology of frozen shoulder (FS) is unclear. Accordingly, this study used a label-free quantitative shotgun proteomic approach to elucidate the pathogenesis of FS based on protein expression levels. METHODS: Tissue samples from the rotator interval (RI), middle glenohumeral ligament (MGHL), and anterior-inferior glenohumeral ligament (IGHL) were collected from 12 FSs with severe stiffness and 7 shoulders with a rotator cuff tear (RCT) as controls...
May 18, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29783975/relationship-between-pulmonary-function-and-peripheral-vascular-function-in-older-chinese-guangzhou-biobank-cohort-study-cvd
#8
Jing Pan, Lin Xu, Tai Hing Lam, Chao Qiang Jiang, Wei Sen Zhang, Feng Zhu, Ya Li Jin, G Neil Thomas, Kar Keung Cheng, Peymane Adab
BACKGROUND: Findings describing the relationship between pulmonary function and peripheral vascular function have been inconclusive. We explored this relationship in Guangzhou Biobank Cohort Study-Cardiovascular Subcohort (GBCS-CVD). METHODS: Brachial-ankle pulse wave velocity (baPWV) and ankle brachial index (ABI) were measured by a waveform analyser, and pulmonary function by turbine flowmeter spirometry. Predicted forced expiratory volume in 1 s (FEV1 ) and forced vital capacity (FVC) were derived using equations for Chinese...
May 21, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29783937/enterococcus-gallinarum-meningitis-a-case-report-and-literature-review
#9
Bo Zhao, Mao Sheng Ye, Rui Zheng
BACKGROUND: As an opportunistic pathogen, E. gallinarum mainly leads to nosocomial infections, and it's multi-drug resistance has gained more and more attention. Central nervous system infections caused by E. gallinarum are rare, but have been reported more often in recent years. The previous cases were generally secondary to neurosurgery, especially ventriculoperitoneal shunts. In recent years, the cases largely occurred in patients with impaired immune function. The patient in our report may have had dual risk factors (immune impairment and an invasive surgical procedure)...
May 21, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29783740/a-high-q-afm-sensor-using-a-balanced-trolling-quartz-tuning-fork-in-the-liquid
#10
Yingxu Zhang, Yingzi Li, Zihang Song, Rui Lin, Yifu Chen, Jianqiang Qian
A quartz tuning fork (QTF) has been widely used as a force sensor of the frequency modulation atomic force microscope due to its ultrahigh stiffness, high quality factor and self-sensing nature. However, due to the bulky structure and exposed surface electrode arrangement, its application is limited, especially in liquid imaging of in situ biological samples, ionic liquids, electrochemical reaction, etc. Although the complication can be resolved by coating insulating materials on the QTF surface and then immersing the whole QTF into the liquid, it would result in a sharp drop of the quality factor, which will reduce the sensitivity of the QTF...
May 19, 2018: Sensors
https://www.readbyqxmd.com/read/29783626/development-and-characterization-of-high-performance-shape-memory-alloy-coatings-for-structural-aerospace-applications
#11
Dimitrios A Exarchos, Panagiota T Dalla, Ilias K Tragazikis, Konstantinos G Dassios, Nikolaos E Zafeiropoulos, Maria M Karabela, Carmen De Crescenzo, Despina Karatza, Dino Musmarra, Simeone Chianese, Theodore E Matikas
This paper presents an innovative approach, which enables control of the mechanical properties of metallic components by external stimuli to improve the mechanical behavior of aluminum structures in aeronautical applications. The approach is based on the exploitation of the shape memory effect of novel Shape Memory Alloy (SMA) coatings deposited on metallic structural components, for the purpose of relaxing the stress of underlying structures by simple heating at field-feasible temperatures, therefore enhancing their structural integrity and increasing their stiffness and rigidity while allowing them to withstand expected loading conditions safely...
May 18, 2018: Materials
https://www.readbyqxmd.com/read/29783086/biomechanical-comparison-of-cemented-vs-non-cemented-anterior-screw-fixation-in-type-ii-odontoid-fractures-in-the-elderly-a-cadaveric-study
#12
Petr Rehousek, Edward Jenner, James Holton, Marcin Czyz, Lukas Capek, Petr Henys, Marketa Kulvajtova, Martin Krbec, Jiri Skala-Rosenbaum
Background Context Odontoid process fractures are the most common injuries of the cervical spine in the elderly. Anterior screw stabilisation of type 2 odontoid process fractures improves survival and function in these patients but may be complicated by failure of fixation. Purpose To determine whether cement augmentation of a standard anterior screw provides biomechanically superior fixation of type II odontoid fractures in comparison to a non-cemented standard screw. Study design Twenty human cadaveric C2 vertebrae from elderly donors (mean age 83 years) were obtained...
May 18, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29782672/high-yield-production-of-monolayer-feps-3-quantum-sheets-via-chemical-exfoliation-for-efficient-photocatalytic-hydrogen-evolution
#13
Zhongzhou Cheng, Tofik Ahmed Shifa, Fengmei Wang, Yi Gao, Peng He, Kai Zhang, Chao Jiang, Quanlin Liu, Jun He
2D layered transition metal phosphorus trichalcogenides (MPX3 ) possess higher in-plane stiffness and lower cleavage energies than graphite. This allows them to be exfoliated down to the atomic thickness. However, a rational exfoliation route has to be sought to achieve surface-active and uniform individual layers. Herein, monolayered FePS3 quantum sheets (QSs) are systematically obtained, whose diameters range from 4-8 nm, through exfoliation of the bulk in hydrazine solution. These QSs exhibit a widened bandgap of 2...
May 21, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29782517/importance-of-software-version-for-measurement-of-arterial-stiffness-arteriograph-as-an-example
#14
Margareta Ring, Maria J Eriksson, Gunnar Nyberg, Kenneth Caidahl
BACKGROUND: Current guidelines recommend the measurement of arterial stiffness in terms of aortic pulse wave velocity (PWV) as an important cardio-vascular risk marker. Both aortic PWV and the aortic augmentation index (AIxao) can be measured using different techniques, e.g., the Arteriograph and SphygmoCor. A new version of the software for the Arteriograph (v. 3.0.0.1, TensioMed, Budapest, Hungary; Arteriograph II) is now available. We wanted to determine whether this improved software differs from the previous version (Arteriograph v...
2018: PloS One
https://www.readbyqxmd.com/read/29782425/increased-arterial-stiffness-in-a-cohort-of-pediatric-takayasu-arteritis-patients-in-toronto-adversely-affects-left-ventricular-mechanics
#15
Heynric B Grotenhuis, Florence A Aeschlimann, Wei Hui, Cameron Slorach, Rae S M Yeung, Susanne M Benseler, Timothy J Bradley, Lars Grosse-Wortmann
BACKGROUND/OBJECTIVE: Takayasu arteritis (TA) is characterized by extensive aortic, large and midsize arterial wall inflammation. The aim of this study was to assess the morphological and elastic properties of the aorta and large arteries and the impact on left ventricular (LV) mechanics in children with TA. METHODS: Seven pediatric TA patients (6 female patients, 13.8 ± 3.2 years) were assessed with magnetic resonance imaging, vascular ultrasound, applanation tonometry, and echocardiography from February 2015 until July 2017 and compared with 7 age- and sex-matched controls...
May 19, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29782391/impact-of-age-on-the-association-between-24-h-ambulatory-blood-pressure-measurements-and-target-organ-damage
#16
Thomas B Olesen, Manan Pareek, Jacob V Stidsen, Marie K Blicher, Susanne Rasmussen, Julie K K Vishram-Nielsen, Kathrine Kjaer-Hansen, Michael H Olsen
OBJECTIVE: The aim of this study was to evaluate the impact of age on the associations between hemodynamic components derived from 24-h ambulatory blood pressure (24-h ABPM) and target organ damage, in apparently healthy, nonmedicated individuals. METHODS: Twenty-four-hour ABPM and target organ damage (left ventricular mass index, pulse wave velocity, urine albumin : creatinine ratio and carotid atherosclerotic plaques) were evaluated in 1408 individuals. Associations were examined in regression models, stratified for age [middle-aged (41 or 51 years) or elderly (61 or 71 years)], and adjusted for sex, smoking status, and total-cholesterol...
May 17, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29782289/-the-effect-of-changing-of-conventional-antihypertensive-therapy-to-a-triple-fixed-combination-therapy-with-rosuvastatin-in-high-cardiovascular-risk-patients
#17
F T Ageev, Z N Blankova, N S Samsonova
BACKGROUND: The low efficiency of recommended therapy for reducing cardiovascular risk (CV) in patients with arterial hypertension even with an effective blood pressure decrease is often due to the persistence of high blood cholesterol and arterial stiffness. Among the effective ways to achieve the goal of therapy is considered the changing to a single-pill combinations (SPCs) of two antihypertensive drugs and statin. AIM: To assess influence of fixed combination consisted of amlodipine, lisinopril and rosuvastatin to the dynamic of lipid spectrum, blood pressure level and elastic properties of arteries in patients with arterial hypertension and high risk of cardio-vascular complications being transferred from their preceding antihypertensive therapy...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782281/-effect-of-chronic-kidney-disease-on-the-formation-of-diastolic-heart-dysfunction-in-heart-failure-patients-with-preserved-ejection-fraction
#18
O B Kuzmin, V V Zezha, V V Belyanin, N V Buchneva
Chronic kidney disease is observed in most patients with CHF with preserved ejection fraction (HFpEF) and presents a major risk factor facilitating development and progression of LV diastolic dysfunction. The review focused on the effect of chronic kidney disease on intracellular signaling pathways affecting stiffness and diastolic relaxation of cardiomyocytes in response to inflammation and endothelial dysfunction of coronary capillaries, excessive sympathetic activation, and dysregulation of natriuretic peptides, which directly participate in the development of CHF...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782219/soft-robotics-academic-insights-and-perspectives-through-bibliometric-analysis
#19
Guanjun Bao, Hui Fang, Lingfeng Chen, Yuehua Wan, Fang Xu, Qinghua Yang, Libin Zhang
Soft robotics is of growing interest in the robot community as well as in public media, and there is an increase in the quality and quantity of publications related to this topic. To formally elaborate this growth, we have used a bibliometric analysis to evaluate the publications in the field from 1990 to 2017 based on the Science Citation Index Expanded database. We present a detailed overview and discussion based on keywords, citation, h-index, year, journal, institution, country, author, and review articles...
May 21, 2018: Soft Robotics
https://www.readbyqxmd.com/read/29782060/autosomal-dominant-early-onset-spastic-paraparesis-with-brain-calcification-due-to-ifih1-gain-of-function
#20
Lyse Ruaud, Gillian I Rice, Christelle Cabrol, Juliette Piard, Mathieu Rodero, Lien van Eyk, Elise Boucher-Brischoux, Alain Maertens de Noordhout, Ricardo Maré, Emmanuel Scalais, Fernand Pauly, François-Guillaume Debray, William Dobyns, Carolina Uggenti, Ji Woo Park, Sun Hur, John H Livingston, Yanick J Crow, Lionel Van Maldergem
We describe progressive spastic paraparesis in two male siblings and the daughter of one of these individuals. Onset of disease occurred within the first decade, with stiffness and gait difficulties. Brisk deep tendon reflexes and extensor plantar responses were present, in the absence of intellectual disability or dermatological manifestations. Cerebral imaging identified intracranial calcification in all symptomatic family members. A marked upregulation of interferon stimulated gene (ISG) transcripts was recorded in all three affected individuals and in two clinically unaffected relatives...
May 21, 2018: Human Mutation
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