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https://www.readbyqxmd.com/read/29458122/regional-variations-of-cortical-bone-in-the-humeral-head-region-a-preliminary-study
#1
Yeming Wang, Jian Li, Jianhua Yang, Jingming Dong
BACKGROUND: Incidence of proximal humeral fractures dramatically increased over the last decade due to demographic changes. The goal of this study was to analyze regional characteristics of cortical bone in the humeral head region using cortical bone mapping (CBM) technique. METHODS: The proximal humerus of 103 healthy volunteers was imaged by clinical computed tomography (CT) scans. Three groups of volunteers were identified according to age: group A (20-39 years), group B (40-59 years), and group C (>60 years)...
February 16, 2018: Bone
https://www.readbyqxmd.com/read/29457147/a-scoping-review-of-health-outcomes-examined-in-randomized-controlled-trials-using-guided-imagery
#2
Peter R Giacobbi, Jonathan Stewart, Keeley Chaffee, Anna-Marie Jaeschke, Meagan Stabler, George A Kelley
Introduction: Guided imagery involves the controlled visualization of detailed mental images. This integrative health technique is used for healing, health maintenance, or the treatment of specific conditions. Guided imagery is an integral part of mindfulness meditation, hypnosis, and various relaxation exercises. However, evidence to support the widespread use and dissemination of guided imagery interventions has been lacking. The purposes of this scoping review were to document the scope of health outcomes and disease processes examined by guided imagery researchers and the journal outlets where this work has been published...
December 2017: Progress in Preventive Medicine
https://www.readbyqxmd.com/read/29456510/sodium-tanshinone-ii-a-sulfonate-ds-201-induces-vasorelaxation-of-rat-mesenteric-arteries-via-inhibition-of-l-type-ca-2-channel
#3
Xiao-Dong Zhang, Chun-Xia He, Jun Cheng, Jing Wen, Peng-Yun Li, Na Wang, Guang Li, Xiao-Rong Zeng, Ji-Min Cao, Yan Yang
Background: We previously have proved that sodium tanshinone II-A sulfonate (DS-201), a derivative of traditional Chinese medicinal herb Danshen (Salvia miltiorrhiza), is an opener and vasodilator of BKCa channel in the vascular smooth muscle cells (VSMCs). Vascular tension is closely associated with Ca2+ dynamics and activation of BKCa channel may not be the sole mechanism for the relaxation of the vascular tension by DS-201. Therefore, we hypothesized that the vasorelaxing effect of DS-20 may be also related to Ca2+ channel and cytoplasmic Ca2+ level in the VSMCs...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29454758/optical-fiber-tips-for-biological-applications-from-light-confinement-biosensing-to-bioparticles-manipulation
#4
REVIEW
Joana S Paiva, Pedro A S Jorge, Carla C Rosa, João P S Cunha
BACKGROUND: The tip of an optical fiber has been considered an attractive platform in Biology. The simple cleaved end of an optical fiber can be machined, patterned and/or functionalized, acquiring unique properties enabling the exploitation of novel optical phenomena. Prompted by the constant need to measure and manipulate nanoparticles, the invention of the Scanning Near-Field Optical Microscopy (SNOM) triggered the optimization and development of novel fiber tip microfabrication methods...
February 15, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29453808/three-dimensional-printing-in-congenital-heart-disease-a-systematic-review
#5
REVIEW
Ivan Lau, Zhonghua Sun
Three-dimensional (3D) printing has shown great promise in medicine with increasing reports in congenital heart disease (CHD). This systematic review aims to analyse the main clinical applications and accuracy of 3D printing in CHD, as well as to provide an overview of the software tools, time and costs associated with the generation of 3D printed heart models. A search of different databases was conducted to identify studies investigating the application of 3D printing in CHD. Studies based on patient's medical imaging datasets were included for analysis, while reports on in vitro phantom or review articles were excluded from the analysis...
February 17, 2018: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/29453535/toxicity-of-metal-oxide-nanoparticles
#6
Koyeli Girigoswami
In the recent times, nanomaterials are used in many sectors of science, medicine and industry, without revealing its toxic effects. Thus, it is in urgent need for exploring the toxicity along with the application of such useful nanomaterials. Nanomaterials are categorized with a particle size of 1-100 nm. They have gained increasing attention because of their novel properties, including a large specific surface area and high reaction activity. The various fundamental and practical applications of nanomaterials include drug delivery, cell imaging, and cancer therapy...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29452620/pathogen-specific-bacterial-imaging-in-nuclear-medicine
#7
REVIEW
Alvaro A Ordonez, Sanjay K Jain
When serious infections are suspected, patients are often treated empirically with broad-spectrum antibiotics while awaiting results that provide information on the bacterial class and species causing the infection, as well as drug susceptibilities. For deep-seated infections, these traditional diagnostic techniques often rely on tissue biopsies to obtain clinical samples which can be expensive, dangerous, and has the potential of sampling bias. Moreover, these procedures and results can take several days and may not always provide reliable information...
March 2018: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/29452618/radionuclide-imaging-of-infection-and-inflammation-in-children-a-review
#8
REVIEW
Marguerite T Parisi, Jeffrey P Otjen, A Luana Stanescu, Barry L Shulkin
With the exception of radiolabeled monoclonal antibodies, antibody fragments and radiolabeled peptides which have seen little application in the pediatric population, the nuclear medicine imaging procedures used in the evaluation of infection and inflammation are the same for both adults and children. These procedures include (1) either a two- or a three-phase bone scan using technetium-99m methylene diphosphonate; (2) Gallium 67-citrate; (3) in vitro radiolabeled white blood cell imaging (using 111 Indium-oxine or 99m Technetium hexamethyl-propylene-amine-oxime-labeled white blood cells); and (4) hybrid imaging with 18 F-FDG...
March 2018: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/29452593/a-review-on-biosynthesis-of-silver-nanoparticles-and-their-biocidal-properties
#9
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen, Rifaqat A K Rao
Use of silver and silver salts is as old as human civilization but the fabrication of silver nanoparticles (Ag NPs) has only recently been recognized. They have been specifically used in agriculture and medicine as antibacterial, antifungal and antioxidants. It has been demonstrated that Ag NPs arrest the growth and multiplication of many bacteria such as Bacillus cereus, Staphylococcus aureus, Citrobacter koseri, Salmonella typhii, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, Vibrio parahaemolyticus and fungus Candida albicans by binding Ag/Ag + with the biomolecules present in the microbial cells...
February 16, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29451844/pulmonary-delivery-of-therapeutic-and-diagnostic-gases
#10
Warren M Zapol, H Cecil Charles, Andrew R Martin, Rui C Sá, Binglan Yu, Fumito Ichinose, Neil MacIntyre, Joseph Mammarappallil, Richard Moon, John Z Chen, Eric T Geier, Chantal Darquenne, G Kim Prisk, Ira Katz
The 21st Congress for the International Society for Aerosols in Medicine included, for the first time, a session on Pulmonary Delivery of Therapeutic and Diagnostic Gases. The rationale for such a session within ISAM is that the pulmonary delivery of gaseous drugs in many cases targets the same therapeutic areas as aerosol drug delivery, and is in many scientific and technical aspects similar to aerosol drug delivery. This article serves as a report on the recent ISAM congress session providing a synopsis of each of the presentations...
February 16, 2018: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/29451507/-appropriateness-in-cardiology-a-statement-of-the-anmco-veneto-region
#11
Guerrino Zuin, Gianfranco Frigo, Loris Roncon, Aldo Bonso, Emanuele Carbonieri, Fabio Chirillo, Fabio De Conti, Pietro Delise, Alessandro Desideri, Daniele D'Este, Loredano Milani, Roberto Valle, Claudio Bilato
Inappropriate tests are responsible for longer waiting lists, higher economical costs for the National Health System and major clinical risks due to radiation exposure from prescription abuse of diagnostic testing. Clinical inappropriateness frequently derives from poor knowledge of guidelines, "defensive medicine" approach and/or repeat requests of patients and family members. About one third of non-invasive imaging tests are considered inappropriate.In order to define the most appropriate instruments for the follow-up of the most common cardiovascular diseases with the highest risk of inappropriateness, all the cardiologists of the Veneto Region (Italy), along with the local chapters of the main national cardiology societies and general practitioners have been involved by the Regional Section of the Italian Association of Hospital Cardiologists (ANMCO) in several scientific meetings on the following topics: hypertension, chronic ischemic heart disease, valvular heart disease, heart failure, and atrial fibrillation...
January 2018: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/29450799/iron-oxide-labeling-does-not-affect-differentiation-potential-of-human-bone-marrow-mesenchymal-stem-cells-exhibited-by-their-differentiation-into-cardiac-and-neuronal-cells
#12
Sujata Mohanty, Krishan Gopal Jain, Sushmita Bose Nandy, Anupama Kakkar, Manoj Kumar, Amit Kumar Dinda, Harpal Singh, Alok Ray
Mesenchymal stem cells (MSCs) have shown promising outcomes in cardiac and neuronal diseases. Efficient and noninvasive tracking of MSCs is essential to harness their therapeutic potential. Iron oxide nanoparticles (IONPs) have emerged as effective means to label stem cells and visualize them using magnetic resonance imaging (MRI). It is known that IONPs do not affect viability and cell proliferation of stem cells. However, very few studies have demonstrated differentiation potential of iron oxide-labeled MSCs and their differentiation into specific lineages that can contribute to cellular therapies...
February 15, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29449445/evaluation-of-penalized-likelihood-estimation-reconstruction-on-a-digital-time-of-flight-pet-ct-scanner-for-18-f-fdg-whole-body-examinations
#13
Elin Lindström, Anders Sundin, Carlos Trampal, Lars Lindsjö, Ezgi Ilan, Torsten Danfors, Gunnar Antoni, Jens Sörensen, Mark Lubberink
Resolution and quantitative accuracy of positron emission tomography (PET) are highly influenced by the reconstruction method. Penalized likelihood estimation algorithms allow for fully convergent iterative reconstruction, generating a higher image contrast while limiting noise compared to ordered subsets expectation maximization (OSEM). In this study, block-sequential regularized expectation maximization (BSREM) was compared to time-of-flight OSEM (TOF-OSEM). Various strengths of noise penalization factor β were tested along with scan durations and transaxial field of views (FOVs) with the aim to evaluate the performance and clinical use of BSREM for 18 F-FDG-PET-computed tomography (CT), both in quantitative terms and in a qualitative visual evaluation...
February 15, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29449411/molecular-imaging-in-drug-discovery-and-development
#14
Jonathan R Lindner, Jeanne Link
Noninvasive imaging has played an increasing role in the process of cardiovascular drug development. This review focuses specifically on the use of molecular imaging, which has been increasingly applied to improve and accelerate certain preclinical steps in drug development, including the identification of appropriate therapeutic targets, evaluation of on-target and off-target effects of candidate therapies, assessment of dose response, and the evaluation of drug or biological biodistribution and pharmacodynamics...
February 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29449275/circulating-tumor-dna-reveals-genetics-clonal-evolution-and-residual-disease-in-classical-hodgkin-lymphoma
#15
Valeria Spina, Alessio Bruscaggin, Annarosa Cuccaro, Maurizio Martini, Martina Di Trani, Gabriela Forestieri, Martina Manzoni, Adalgisa Condoluci, Alberto Arribas, Lodovico Terzi-Di-Bergamo, Silvia Laura Locatelli, Elisa Cupelli, Luca Ceriani, Alden A Moccia, Anastasios Stathis, Luca Nassi, Clara Deambrogi, Fary Diop, Francesca Guidetti, Alessandra Cocomazzi, Salvatore Annunziata, Vittoria Rufini, Alessandro Giordano, Antonino Neri, Renzo Boldorini, Bernhard Gerber, Francesco Bertoni, Michele Ghielmini, Georg Stüssi, Armando Santoro, Franco Cavalli, Emanuele Zucca, Luigi Maria Larocca, Gianluca Gaidano, Stefan Hohaus, Carmelo Carlo-Stella, Davide Rossi
The rarity of neoplastic cells in the biopsy imposes major technical hurdles that have so far limited genomic studies in classical Hodgkin lymphoma (cHL). By using a highly sensitive and robust deep-next-generation-sequencing approach for circulating tumor DNA (ctDNA), here we aimed at tracking the genetics of cHL in different clinical phases, and its modifications upon treatment. The analysis was based on specimens collected from 80 newly diagnosed and 32 refractory cHL patients, including longitudinal samples collected under ABVD chemotherapy and longitudinal samples from relapsing patients treated with chemotherapy and immunotherapy...
February 15, 2018: Blood
https://www.readbyqxmd.com/read/29447720/no-257-ultrasonographic-cervical-length-assessment-in-predicting-preterm-birth-in-singleton-pregnancies
#16
Kenneth Lim, Kimberly Butt, Joan M Crane
OBJECTIVES: To review (1) the use of ultrasonographic-derived cervical length measurement in predicting preterm birth and (2) interventions associated with a short cervical length. OUTCOMES: Reduction in rates of prematurity and/or better identification of those at risk, as well as possible prevention of unnecessary interventions. EVIDENCE: Published literature was retrieved through searches of PubMed and The Cochrane Library up to December 2009, using appropriate controlled vocabulary and key words (preterm labour, ultrasound, cervix, incompetent cervix, transvaginal, transperineal, cervical length, fibronectin)...
February 2018: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29447047/prospective-comparative-study-of-18-f-sodium-fluoride-pet-ct-and-planar-bone-scintigraphy-for-treatment-response-assessment-of-bone-metastases-in-patients-with-prostate-cancer
#17
Randi Fuglsang Fonager, Helle Damgaard Zacho, Niels Christian Langkilde, Joan Fledelius, June Anita Ejlersen, Helle Westergreen Hendel, Christian Haarmark, Mette Moe, Jesper Carl Mortensen, Mads Ryø Jochumsen, Lars Jelstrup Petersen
AIM: To compare 18 F-sodium fluoride positron emission tomography/computed tomography (NaF PET/CT) and 99m Tc-labelled diphosphonate bone scan (BS) for the monitoring of bone metastases in patients with prostate cancer undergoing anti-cancer treatment. MATERIAL AND METHODS: Data from 64 patients with prostate cancer were included. The patients received androgen-deprivation therapy (ADT), next-generation hormonal therapy (NGH) or chemotherapy. The patients had a baseline scan and 1-3 subsequent scans during six months of treatment...
February 15, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29446818/heart-involvement-in-systemic-sclerosis
#18
Ihsen Zairi, Lilia Baili, Khadija Mzoughi, Manel Dridi, Zouhaier Jnifene, Fatma Boussema
INTRODUCTION: Primary and secondary heart involvement in systemic sclerosis are important mortality predictors. Aim of this study was to investigate by standard echocardiography associated to pulsed-tissue Doppler imaging, six-minute walk test (6MWT) and BNP level cardiac manifestation in 30 patients with ScS and to establish a strategy to detect and to evaluate this complication. METHODS: This was a cross-sectional study conducted over a period of 16 months: a total of 30 consecutive patients with ScS diagnosed as proposed by the American college of Rheumatology and the European League Against Rheumatism 2013 and who were hospitalized in Internal Medicine department of Habib Thameur hospital underwent cardiac assessment...
March 2017: La Tunisie Médicale
https://www.readbyqxmd.com/read/29446551/targeting-murine-mesenchymal-stem-cells-to-kidney-injury-molecule-1-improves-their-therapeutic-efficacy-in-chronic-ischemic-kidney-injury
#19
Xiangyu Zou, Kai Jiang, Amrutesh S Puranik, Kyra L Jordan, Hui Tang, Xiangyang Zhu, Lilach O Lerman
Mesenchymal stem cells (MSC) have been experimentally used for kidney repair, but modest retention limits their efficacy. Cell-surface coating allows modulating MSC homing and interaction with target cells. We coated mouse adipose tissue-derived MSC with antibodies directed against kidney injury molecule-1 (ab-KIM1), which is upregulated in injured kidneys, and tested the hypothesis that this would enhance their therapeutic effects in ischemic kidney injury. Untreated MSC, ab-KIM1-coated MSC (KIM-MSC), or vehicle, were injected systemically into the carotid artery of 2-kidneys, 1-clip mice 2 weeks after surgery...
February 15, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29445882/procedure-rates-performed-by-emergency-medicine-residents-a-retrospective-review
#20
Joshua T Bucher, Christopher Bryczkowski, Grant Wei, Renee L Riggs, Anoop Kotwal, Brian Sumner, Jonathan V McCoy
BACKGROUND: The purpose of our study is to investigate rates of individual procedures performed by residents in our emergency medicine (EM) residency program. Different programs expose residents to different training environments. Our hypothesis is that ultrasound examinations are the most commonly performed procedure in our residency. METHODS: The study took place in an academic level I trauma center with multiple residency and fellowship programs including surgery, surgical critical care, trauma, medicine, pulmonary/critical care, anesthesiology and others...
February 14, 2018: International Journal of Emergency Medicine
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