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https://www.readbyqxmd.com/read/28324911/synthesis-of-two-c-14-labeled-cathepsin-c-inhibitors-the-use-of-a-cyanide-to-displace-a-benzotriazole
#1
Lee Kingston, Jonas Bergare, Hans Lönn, Cecilia Ericsson, Gunnar Grönberg, Song Chen, Charles S Elmore
In support of the development of a new treatment for COPD, two C-14 labeled compounds were required for in vitro animal studies. The synthesis of nitrile [(14) C]-1 was completed in 3 steps from C-14 labeled 4-bromobenzonitrile in accord with the previously developed medicinal chemistry route. The second compound, 2, did not possess an arylnitrile as did 1 which made the synthetic design more complex. An advanced, unlabeled benzotriazole containing intermediate, 10, was synthesized in low yield over 3 steps and was subsequently reacted with K(14) CN to give a mixture of diastereomers 12...
March 21, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28324908/-magnetic-sentinel-lymph-node-detection-in-prostate-cancer-after-intraprostatic-injection-of-superparamagnetic-iron-oxide-nanoparticles
#2
Alexander Winter, Svenja Engels, Tobias Kowald, Tina Susanne Paulo, Holger Gerullis, Ajay Chavan, Friedhelm Wawroschek
In prostate cancer, reliable information about the lymph node status is of great importance for accurate staging and the optimal planning of treatment. Despite recent advances in imaging, the histological detection of metastases, or pelvic lymphadenectomy (PLND), continues to be the most reliable method for lymph node staging in clinically localised prostate cancer, especially as this procedure enables the detection of small or micrometastases. Radioisotope-guided sentinel PLND (sPLND) demonstrates high sensitivity in the detection of lymph node metastases as well as low morbidity in prostate cancer because of the targeted removal of a relatively small number of lymph nodes...
March 21, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28324873/endobronchial-ultrasound-elastography-for-evaluation-of-intrathoracic-lymph-nodes-a-pilot-study
#3
Jiayuan Sun, Xiaoxuan Zheng, Xiaowei Mao, Lei Wang, Hongkai Xiong, Felix J F Herth, Baohui Han
BACKGROUND: Endobronchial ultrasound (EBUS) elastography is a new imaging procedure for describing the elasticity of intrathoracic lesions and providing important additional diagnostic information. OBJECTIVES: The aim of this study was to utilize the feasibility of qualitative and quantitative methods to evaluate the ability of EBUS elastography to differentiate between benign and malignant mediastinal and hilar lymph nodes (LNs) during EBUS-guided transbronchial needle aspiration (EBUS-TBNA)...
March 22, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28324799/modified-masquelet-technique-using-allogeneic-umbilical-cord-derived-mesenchymal-stem-cells-for-infected-non-union-femoral-shaft-fracture-with-a-12-cm-bone-defect-a-case-report
#4
Ismail Hadisoebroto Dilogo, Muhammad Rizqi Adhi Primaputra, Jeanne Adiwinata Pawitan, Isabella Kurnia Liem
INTRODUCTION: Non-union due to large bone loss often causes significant long-term morbidity. We incorporate the use of allogeneic umbilical cord-derived mesenchymal stem cells (UC-MSCs) as part of the diamond concept of regenerative medicine in a case of infected non-union fracture. PRESENTATION OF CASE: We reported a 54-year-old female patient presenting with pain on the right thigh. She was previously diagnosed with a closed fracture of the right femoral shaft and underwent four surgeries before finally being referred to Dr...
March 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28324583/revisiting-cdk-inhibitors-for-treatment-of-glioblastoma-multiforme
#5
REVIEW
Dorota Lubanska, Lisa Porter
Despite extensive efforts and continual progress in research and medicine, outcomes for patients with high-grade glioma remain exceptionally poor. Over the past decade, research has revealed a great deal about the complex biology behind glioma development, and has brought to light some of the major barriers preventing successful treatment. Glioblastoma multiforme (GBM) (stage 4 astrocytoma) is a highly dynamic tumour and one of the most extreme examples of intratumoural heterogeneity, making targeting with specific therapeutics an inefficient and highly unpredictable goal...
March 21, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28324029/vital-directions-for-health-and-health-care-priorities-from-a-national-academy-of-medicine-initiative
#6
Victor J Dzau, Mark B McClellan, J Michael McGinnis, Sheila P Burke, Molly J Coye, Angela Diaz, Thomas A Daschle, William H Frist, Martha Gaines, Margaret A Hamburg, Jane E Henney, Shiriki Kumanyika, Michael O Leavitt, Ruth M Parker, Lewis G Sandy, Leonard D Schaeffer, Glenn D Steele, Pamela Thompson, Elias Zerhouni
Importance: Recent discussion has focused on questions related to the repeal and replacement of portions of the Affordable Care Act (ACA). However, issues central to the future of health and health care in the United States transcend the ACA provisions receiving the greatest attention. Initiatives directed to certain strategic and infrastructure priorities are vital to achieve better health at lower cost. Objectives: To review the most salient health challenges and opportunities facing the United States, to identify practical and achievable priorities essential to health progress, and to present policy initiatives critical to the nation's health and fiscal integrity...
March 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28323877/thermal-analysis-during-partial-carbonizing-process-of-rhubarb-moutan-and-burnet
#7
Junnan Ma, Xianglong Meng, Xiaohui Guo, Yaru Lan, Shuosheng Zhang
Control of temperature and duration of partial carbonization for Chinese medicines have been mainly based on experience of the processors. No quantitative methods and parameters are available that can be used to precisely control the temperature and determine the energy changes during the process. In our research, with a simulated atmosphere air condition, the partial carbonization processes of three Chinese herb medicines rhubarb, moutan and burnet were simulated at different heating rates (5, 10 and 20°C • min-1) and analyzed by thermal gravimetric analysis (TGA) to quantify the upper limits of the temperature...
2017: PloS One
https://www.readbyqxmd.com/read/28323658/changing-face-of-metastatic-prostate-cancer-the-law-of-diminishing-returns-holds-true
#8
Ulka N Vaishampayan
PURPOSE OF REVIEW: Prostate cancer presents with a multitude of faces. It ranges from localized cancers staying quiescent for many years during active surveillance to the raging diffuse liver metastases causing terminal disease. The incidence of metastatic disease is increasing. This review will highlight some of the recent developments as well as ongoing challenges of managing advanced prostate cancer. RECENT FINDINGS: Significant strides are being made in managing metastatic prostate cancer...
March 18, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28323640/a-micro-scale-printable-nanoclip-for-electrical-stimulation-and-recording-in-small-nerves
#9
Charles A Lissandrello, Winthrop F Gillis, Jun Shen, Ben W Pearre, Flavia Vitale, Matteo Pasquali, Bradley J Holinski, Daniel J Chew, Alice E White, Timothy J Gardner
OBJECTIVE: The vision of bioelectronic medicine is to treat disease by modulating the signaling of visceral nerves near various end organs. In small animal models, the nerves of interest can have small diameters and limited surgical access. New high-resolution methods for building nerve interfaces are desirable. In this study, we present a novel nerve interface and demonstrate its use for stimulation and recording in small nerves. APPROACH: We design and fabricate micro-scale electrode-laden nanoclips capable of interfacing with nerves as small as 50 µm in diameter...
March 21, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28323608/from-doctors-stories-to-doctors-stories-and-back-again
#10
Marcia Day Childress
Stories have always been central to medicine, but during the twentieth century bioscience all but eclipsed narrative's presence in medical practice. In Doctors' Stories, published in 1991, Kathryn Montgomery excavated medicine's narrative foundations and functions to reveal new possibilities for how to conceive and characterize medicine. Physicians' engagement with stories has since flourished, especially through the narrative medicine movement, although in the twenty-first century this has been challenged by the health care industry's business-minded and data-driven clinical systems...
March 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28320091/animal-models-for-assessing-the-impact-of-natural-products-on-the-aetiology-and-metabolic-pathophysiology-of-type-2-diabetes
#11
REVIEW
Md Asrafuzzaman, Yingnan Cao, Rizwana Afroz, Danielle Kamato, Susan Gray, Peter J Little
Type 2 diabetes mellitus is a complex and heterogeneous disorder which in its most common manifestation arises from insulin resistance and later insulin insufficiency. Type 2 diabetes is characterised by impaired insulin sensitivity and diagnosed as hyperglycaemia. Because of its cardiovascular consequences, Type 2 diabetes represents one of the world's leading causes of mortality and morbidity. Drug discovery and development are required to produce better ways to prevent, treat and manage diabetes and its complications...
March 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319779/supramolecular-biofunctional-materials
#12
REVIEW
Jie Zhou, Jie Li, Xuewen Du, Bing Xu
This review discusses supramolecular biofunctional materials, a novel class of biomaterials formed by small molecules that are held together via noncovalent interactions. The complexity of biology and relevant biomedical problems not only inspire, but also demand effective molecular design for functional materials. Supramolecular biofunctional materials offer (almost) unlimited possibilities and opportunities to address challenging biomedical problems. Rational molecular design of supramolecular biofunctional materials exploit powerful and versatile noncovalent interactions, which offer many advantages, such as responsiveness, reversibility, tunability, biomimicry, modularity, predictability, and, most importantly, adaptiveness...
March 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28319548/tanshinone-iia-attenuates-sevoflurane-neurotoxicity-in-neonatal-mice
#13
Yimeng Xia, Heng Xu, Chenfei Jia, Xiaodong Hu, Yu Kang, Xiaoxuan Yang, Qingsheng Xue, Guorong Tao, Buwei Yu
BACKGROUND: Sevoflurane is the most widely used inhalational anesthetic in pediatric medicine. Despite this, sevoflurane has been reported to exert potentially neurotoxic effects on the developing brain. Clinical interventions and treatments for these effects are limited. Tanshinone IIA (Tan IIA), extracted from Salvia miltiorrhiza (Danshen), has been documented to alleviate cognitive decline in traditional applications. Therefore, we hypothesized that preadministration of Tan IIA may attenuate sevoflurane-induced neurotoxicity, suggesting that Tan IIA is a new and promising drug capable of counteracting the effects of cognitive dysfunction produced by general anesthetics...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319391/synthesis-isotopic-enrichment-and-solid-state-nmr-characterization-of-zeolites-derived-from-the-assembly-disassembly-organisation-reassembly-process
#14
Giulia P M Bignami, Daniel M Dawson, Valerie R Seymour, Paul S Wheatley, Russell Edward Morris, Sharon E Ashbrook
The great utility and importance of zeolites in fields as diverse as industrial catalysis and medicine has driven considerable interest in the ability to target new framework types with novel properties and applications. The recently-introduced and unconventional Assembly, Disassembly, Organization, Reassembly (ADOR) method represents one exciting new approach to obtain solids with targeted structures by selectively disassembling pre-prepared hydrolytically-unstable frameworks, and then reassembling the resulting products to form materials with new topologies...
March 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28319248/cyclic-tensile-strain-enhances-human-mesenchymal-stem-cell-smad-2-3-activation-and-tenogenic-differentiation-in-anisotropic-collagen-glycosaminoglycan-scaffolds
#15
W G Grier, A S Moy, B A Harley
Stem cell research arose from the need to explore new therapeutic possibilities for intractable and lethal diseases. Although musculoskeletal disorders are basically nonlethal, their high prevalence and relative ease of performing clinical trials have facilitated the clinical application of stem cells in this field. However, few reliable clinical studies have been published, despite the plethora of in vitro and preclinical studies in stem cell research for regenerative medicine in the musculoskeletal system...
March 20, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28319221/fluorescent-chemical-probes-for-accurate-tumor-diagnosis-and-targeting-therapy
#16
REVIEW
Min Gao, Fabiao Yu, Changjun Lv, Jaebum Choo, Lingxin Chen
Surgical resection of solid tumors is currently the gold standard and preferred therapeutic strategy for cancer. Chemotherapy drugs also make a significant contribution by inhibiting the rapid growth of tumor cells and these two approaches are often combined to enhance treatment efficacy. However, surgery and chemotherapy inevitably lead to severe side effects and high systemic toxicity, which in turn results in poor prognosis. Precision medicine has promoted the development of treatment modalities that are developed to specifically target and kill tumor cells...
March 20, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28318863/it-is-a-brave-new-world-alternative-payment-models-and-value-creation-in-total-joint-arthroplasty-creating-value-for-tjr-quality-and-cost-effectiveness-programs
#17
Kevin K Chen, Jonathan H Harty, Joseph A Bosco
BACKGROUND: The increasing cost of our country's healthcare is not sustainable. To address this crisis, the federal government is transiting healthcare reimbursement from the traditional volume-based system to a value-based system. As such, increasing healthcare value has become an essential point of discussion for all healthcare stakeholders. METHODS: The purpose of this study is to discuss the importance of healthcare value as a means to achieve this goal of value-based medicine and 3 methods to create value in total joint arthroplasty...
February 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28318656/clinical-characteristics-and-prognosis-of-patients-admitted-for-heart-failure-a-5-year-retrospective-study-of-african-patients
#18
Kwadwo Osei Bonsu, Isaac Kofi Owusu, Kwame Ohene Buabeng, Daniel D Reidpath, Amudha Kadirvelu
BACKGROUND: Mortality associated with heart failure (HF) remains high. There are limited clinical data on mortality among HF patients from African populations. We examined the clinical characteristics, long-term outcomes, and prognostic factors of African HF patients with preserved, mid-range or reduced left ventricular ejection fraction (LVEF). METHODS AND RESULTS: We conducted a retrospective longitudinal cohort study of individuals aged ≥18years discharged from first HF admission between January 1, 2009 and December 31, 2013 from the Cardiac Clinic, Directorate of Medicine of the Komfo Anokye Teaching Hospital, Ghana...
March 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28318093/synthesis-of-imidazo-1-2-a-pyridines-c-h-functionalization-in-the-direction-of-c-s-bond-formation
#19
REVIEW
Chitrakar Ravi, Subbarayappa Adimurthy
Imidazo[1,2-a]pyridines play an important role in medicinal chemistry. In spite of very drastic developments on syntheses and functionalization in this area, the use of inexpensive catalysts and mild reaction conditions constitutes an important role in pharmaceutical applications. This account describes our recent efforts on the development of new methods for the synthesis of imidazo[1,2-a]pyridines using readily available starting substrates and catalysts under very mild reaction conditions. In the direction of enhancement of biological activity, we also described the synthesis of functionalized imidazo [1,2-a]pyridine derivatives...
March 20, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28318021/corrigendum-adaptive-biomedical-innovation-evolving-our-global-system-to-sustainably-and-safely-bring-new-medicines-to-patients-in-need
#20
G Hirsch, M Trusheim, E Cobbs, M Bala, S Garner, D Hartman, K Isaacs, M Lumpkin, R Lim, K Oye, E Pezalla, P Saltonstall, H Selker
No abstract text is available yet for this article.
April 2017: Clinical Pharmacology and Therapeutics
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