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https://www.readbyqxmd.com/read/28347132/radiolabeled-peptides-current-and-new-perspectives
#1
Marta Opalinska, Alicja Hubalewska-Dydejczyk, Anna Sowa-Staszczak
Radiolabeled peptides have been the subject of research for over 20 years and during that time possibility/variety of peptide receptor imaging and later targeted radiotherapy increased significantly. The targeted receptors belong to the large family of G-protein-coupled receptors or tyrosine kinases receptors partially connected with them. They both regulate large signaling networks, control multiple cell functions and are implicated in many diseases including cancers. The essential feature of peptides used in nuclear medicine involves their ability to binding with high affinity and specify to their receptors overexpressed on tumor cells...
June 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28347131/preclinical-in-vivo-cancer-straightway-to-patients
#2
Marion de Jong, Stephen Mather, Theodosia Maina
Detection of useful cellular targets has strongly stimulated personalized tumor-targeted imaging and therapy approaches, also involving synthesis and evaluation of nuclear imaging probes with potential for clinical applications. Reviews of preclinical and translational studies concerning such probes, including radiolabeled antibodies, nanobodies, affibodies, peptides, small molecule inhibitors, and nanoparticles, are presented in this issue. As most tracers described in these articles have been developed for the field of cancer imaging and radionuclide therapy, the current article on preclinical studies will focus on cancer research as well...
June 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28347129/bi-layer-channel-azo-zno-thin-film-transistors-fabricated-by-atomic-layer-deposition-technique
#3
Huijin Li, Dedong Han, Liqiao Liu, Junchen Dong, Guodong Cui, Shengdong Zhang, Xing Zhang, Yi Wang
This letter demonstrates bi-layer channel Al-doped ZnO/ZnO thin film transistors (AZO/ZnO TFTs) via atomic layer deposition process at a relatively low temperature. The effects of annealing in oxygen atmosphere at different temperatures have also been investigated. The ALD bi-layer channel AZO/ZnO TFTs annealed in dry O2 at 300 °C exhibit a low leakage current of 2.5 × 10(-13)A, I on/I off ratio of 1.4 × 10(7), subthreshold swing (SS) of 0.23 V/decade, and high transmittance. The enhanced performance obtained from the bi-layer channel AZO/ZnO TFT devices is explained by the inserted AZO front channel layer playing the role of the mobility booster...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28347128/temperature-and-wavelength-dependence-of-energy-transfer-process-between-quantized-states-and-surface-states-in-cdse-quantum-dots
#4
Lei Zhang, Qinfeng Xu, Mingliang Liu, Lingbin Kong, Mengmeng Jiao, Haifeng Mu, Dehua Wang, Honggang Wang, Jiannong Chen, Chuanlu Yang
Temperature and wavelength dependence of energy transfer (ET) process between quantized states and surface trap states of CdSe quantum dots was investigated, respectively. The experimental results demonstrate that the photoluminescence (PL) intensity of the quantized states decreases with respect to the trap state emission, especially at lower temperatures. The observed ET process between quantized states and trap states which is influenced by the thermal population behavior. At the same temperature, the silver films can greatly enhance the energy transfer (ET) rate from the quantized states to trap states due to surface plasmonic coupling effect...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28346994/gc-ms-analysis-and-potential-cytotoxic-activity-of-calyptranthes-grandifolia-o-berg-calyptranthes-tricona-d-legrand-and-myrciaria-plinioides-d-legrand-essential-oil-in-raw264-7-and-cho-k1-cells
#5
D Faleiro, S M Immich, F Majolo, L Mayer, E M Ethur, M I Goettert
The search for new bioactive substances derived from natural products is daily growing. Among biologically active products used in therapeutic approaches, essential oils are described with wide range of therapeutic and pharmacological potential. Plants from Myrtaceae family have the presence of essential oils in its composition. Calyptranthes grandifolia, Calyptranthes tricona and Myrciaria plinioides species belong to this family and are used by the local population. However, there are no reports in the literature describing relevant characteristics about the potential and possible activities of these species...
March 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28346993/artemisia-sieberi-besser-essential-oil-and-treatment-of-fungal-infections
#6
REVIEW
Mohaddese Mahboubi
A. sieberi essential oil has been used for treatment of hardly curable infectious ulcers in Middle East Medicine and has been famous due to its wormicide effects. In this review, we evaluated the potency of A. sieberi essential oil in treatment of fungal infections. We searched in PubMed Central, Science direct, Wiley, Springer, SID, and accessible books, reports, thesis. There is a lot of mixed information on chemical compositions of A. sieberi essential oil, but most articles reported α, β-thujones as the main components of essential oils...
March 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28346992/longitudinal-assessment-of-hydropeaking-impacts-on-various-scales-for-an-improved-process-understanding-and-the-design-of-mitigation-measures
#7
C Hauer, P Holzapfel, P Leitner, W Graf
Hydropeaking is one of the main pressures on the aquatic ecology in alpine rivers. Beside studies on abiotic process and biotic response on the local scale there is a lack in process understanding on the reach scale. Especially longitudinal changes of hydropeaking impacts based on retention processes have not been studied yet. Thus, based on unsteady one-dimensional and two-dimensional depth averaged modelling it was targeted to investigate possible changes in vertical ramping velocity for the discussion of possible mitigation measures at the local scale...
January 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346991/an-integrated-assessment-framework-for-the-analysis-of-multiple-pressures-in-aquatic-ecosystems-and-the-appraisal-of-management-options
#8
A Pistocchi, A Udias, B Grizzetti, E Gelati, P Koundouri, R Ludwig, A Papandreou, I Souliotis
The contribution illustrates an integrated assessment framework aimed at evaluating the relationships between multiple pressures and water body status for the purposes of river basin management. The framework includes the following steps. (1) Understanding how the different pressures affect the status of water bodies. This entails the characterization of biophysical state variables and the definition of a causal relationship between pressures and status. Therefore this step involves interaction between experts bearing ecological understanding and experts providing models to represent the effect of pressures...
January 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346980/ecological-intensification-to-mitigate-impacts-of-conventional-intensive-land-use-on-pollinators-and-pollination
#9
REVIEW
Anikó Kovács-Hostyánszki, Anahí Espíndola, Adam J Vanbergen, Josef Settele, Claire Kremen, Lynn V Dicks
Worldwide, human appropriation of ecosystems is disrupting plant-pollinator communities and pollination function through habitat conversion and landscape homogenisation. Conversion to agriculture is destroying and degrading semi-natural ecosystems while conventional land-use intensification (e.g. industrial management of large-scale monocultures with high chemical inputs) homogenises landscape structure and quality. Together, these anthropogenic processes reduce the connectivity of populations and erode floral and nesting resources to undermine pollinator abundance and diversity, and ultimately pollination services...
March 27, 2017: Ecology Letters
https://www.readbyqxmd.com/read/28346975/hypothyroidism-is-associated-with-all-cause-mortality-in-a-national-cohort-of-chronic-hemodialysis-patients
#10
Hsuan-Jen Lin, Chung-Chih Lin, Hsuan Ming Lin, Hsuan-Ju Chen, Che-Chen Lin, Chiz-Tzung Chang, Che-Yi Chou, Chiu-Ching Huang
BACKGROUND: The prevalence of hypothyroidism is high in hemodialysis (HD) patients and hypothyroidism increases all-cause mortality in HD patients. Comorbidities are common in HD patients and are associated with both mortality and hypothyroidism. The aim of the study is to explore the effect of the interactions of comorbidities and hypothyroidism on all-cause mortality in HD patients. METHOD: Patients with hypothyroidism (ICD-9-CM 244.0, 244.1, and 244.9) and matched patients without hypothyroidism in the Registry for Catastrophic Illness Patient Database of Taiwan Health Insurance from 2000 to 2010 were analyzed...
March 27, 2017: Nephrology
https://www.readbyqxmd.com/read/28346969/the-comparison-of-laparoscopic-and-microsurgical-varicocoelectomy-in-infertile-men-with-varicocoele-on-paternity-rate-12%C3%A2-months-after-surgery-a-prospective-randomized-controlled-trial
#11
P Bryniarski, P Taborowski, P Rajwa, Z Kaletka, M Życzkowski, A Paradysz
The best surgical approach for varicocoelectomy is still unknown, however more and more physicians favour subinguinal microsurgery. The aim of this study was to find whether microsurgical approach is superior to laparoscopic varicocoelectomy in terms of pregnancy rate, fertility potential, endocrinological function of the testis, erectile dysfunction and testicle volume increase. It was a prospective, non-masked, parallel-group randomized controlled trial with one to one allocation. It was conducted at authors' institution and designed as per protocol study...
March 27, 2017: Andrology
https://www.readbyqxmd.com/read/28346967/anticoagulation-therapy-in-children
#12
Vlad Calin Radulescu
Venous thromboembolism (VTE) is very uncommon in children and adolescents compared with older adults, though its incidence has significantly increased over the past two decades. Given the rarity of the condition, the data on pediatric VTE lag behind the adult experience and consequently the management of VTE in children is, in large part, modeled on the adult strategies. This approach has certain limitations, given that young children have developmental particularities of the hemostatic system and differences in the pharmacokinetics and pharmacodynamics of various anticoagulant agents...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346966/factor-xii-contact-activation
#13
Clément Naudin, Elena Burillo, Stefan Blankenberg, Lynn Butler, Thomas Renné
Contact activation is the surface-induced conversion of factor XII (FXII) zymogen to the serine protease FXIIa. Blood-circulating FXII binds to negatively charged surfaces and this contact to surfaces triggers a conformational change in the zymogen inducing autoactivation. Several surfaces that have the capacity for initiating FXII contact activation have been identified, including misfolded protein aggregates, collagen, nucleic acids, and platelet and microbial polyphosphate. Activated FXII initiates the proinflammatory kallikrein-kinin system and the intrinsic coagulation pathway, leading to formation of bradykinin and thrombin, respectively...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346965/point-of-care-coagulation-tests-monitoring-of-direct-oral-anticoagulants-and-their-reversal-therapy-state-of-the-art
#14
Giacomo E Iapichino, Paolo Bianchi, Marco Ranucci, Ekaterina Baryshnikova
Direct oral anticoagulants (DOACs) exert similar anticoagulant effects to vitamin K antagonists and are increasingly used worldwide. Nevertheless, an evidence-based approach to patients receiving DOACs when any unplanned urgent surgery or bleeding (either spontaneous or traumatic) occurs is still missing. In this review, we investigate the role of point-of-care coagulation tests when other, more specific tests are not available. Indeed, thromboelastography and activated clotting time can detect dabigatran-induced coagulopathy, while their accuracy is limited for apixaban and rivaroxaban, mostly in cases of low drug plasma concentrations...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346964/lipoprotein-a-as-a-risk-factor-for-venous-thromboembolism-a-systematic-review-and-meta-analysis-of-the-literature
#15
Francesco Dentali, Vera Gessi, Rossella Marcucci, Monica Gianni, Anna Maria Grandi, Massimo Franchini
Elevated plasma levels of lipoprotein(a) (Lp(a)) are associated with increased cardiovascular risk in several clinical studies. However, there is a lack of data supporting a positive association between elevated Lp(a) levels and venous thromboembolism (VTE). Thus, we conducted a systematic review of the literature to better clarify its role as a risk factor for VTE. Medline and the Embase (up to May 2015) electronic databases were used to identify potentially eligible studies. Studies measuring Lp(a) values in adult patients with deep vein thrombosis and/or pulmonary embolism and in a population of patients without a VTE were selected...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346963/point-of-care-testing-in-neurosurgery
#16
Christopher Beynon, Lars Wessels, Andreas W Unterberg
Coagulation disorders can have a major impact on the outcome of neurosurgical patients. The central nervous system is located within the closed space of the skull, and therefore, intracranial hemorrhage can lead to intracranial hypertension. Acute brain injury has been associated with alterations of various hemostatic parameters. Point-of-care (POC) techniques such as rotational thromboelastometry are able to identify markers of coagulopathy which are not reflected by standard assessment of hemostasis (e.g...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346962/response-to-comment-on-state-of-the-art-imaging-in-pulmonary-embolism-ventilation-perfusion-single-photon-emission-computed-tomography-versus-computed-tomography-angiography-controversies-results-and-recommendations-from-a-systematic-review
#17
https://www.readbyqxmd.com/read/28346961/laboratory-assessment-of-hemostatic-and-anticoagulant-therapy
#18
Dorothy M Adcock, Robert C Gosselin
No abstract text is available yet for this article.
April 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28346958/-role-of-laser-resection-in-pulmonary-metastasectomy
#19
S Macherey, F Doerr, T Wahlers, K Hekmat
Objectives This review presents laser resection as treatment option in pulmonary metastasectomy and summarizes the current evidence. Moreover, it includes the comparison of laser resection and common techniques used in lung metastasectomy. Methods We performed a systematic literature research in Medline and the Cochrane library to detect case series and even randomized trials. All included studies underwent qualitative analysis. Results Laser metastasectomy is a safe procedure. Data regarding relevant clinical end points as hospitalization, duration of chest tube drainage and long-term survival are heterogeneous and still controversial...
March 27, 2017: Pneumologie
https://www.readbyqxmd.com/read/28346957/-a-young-asylum-seeker-with-hemoptysis-and-positive-tuberculosis-screening-not-always-tuberculosis
#20
T Stevens, S B Schwarz, F S Magnet, W Windisch
This paper reports on the case of a 19 year old asylum seeker from Eritrea who presented with hemoptysis, a positive tuberculosis screening (Enzyme Linked Immuno Spot Assay - EliSpot) and mushy faeces submitted with a suspected diagnosis of tuberculosis. Laboratory testing revealed thrombopenia, leukopenia and eosinophilia, while the chest X-ray was inconspicuous. Acid-proof rod bacteria were neither evident in bronchoscopy samples nor in expectorated sputum samples. However, sonographic findings showed a profound splenomegaly, and laboratory testing revealed a Schistosoma mansoni infection...
March 27, 2017: Pneumologie
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