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https://www.readbyqxmd.com/read/28445041/verbeekite-the-long-unknown-crystal-structure-of-monoclinic-pdse2
#1
Elisabeth Selb, Martina Tribus, Gunter Heymann
Verbeekite, a monoclinic polymorph of PdSe2, was reported for the first time in 2002 by Roberts et al. The mineral has been discovered in the Musonoi Cu-Co-Mn-U mine, Democratic Republic of Congo, and was named after Dr. Théodore Verbeek, the first geoscientist who studied the palladium mineralization there (1955-1967). Until today, the crystal structure of this very rare mineral has been unknown. By syntheses via multianvil high-pressure/high-temperature methods at 11.5 GPa and 1300 °C, synthetic verbeekite could be obtained in a high degree of purity and comparatively good crystal quality, which made it possible to determine the full crystal structure for PdSe2 verbeekite from single-crystal X-ray diffractometer data: I2/a, a = 671...
April 26, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28444903/electrospray-ionization-mass-spectrometry-for-the-hydrolysis-complexes-of-cisplatin-implications-for-the-hydrolysis-process-of-platinum-complexes
#2
Feifan Xie, Pieter Colin, Jan Van Bocxlaer
Non-enzyme dependent hydrolysis of the drug cisplatin is important for its mode of action and toxicity. However, up until today, the hydrolysis process of cisplatin is still not completely understood. In the present study, the hydrolysis of cisplatin in an aqueous solution was systematically investigated using electrospray ionization mass spectrometry coupled to liquid chromatography. A variety of previously unreported hydrolysis complexes corresponding to mono-, di-, and trimeric species were detected and identified...
April 26, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28444684/-evaluation-and-treatment-of-sleep-problems-in-children-diagnosed-with-attention-deficit-hyperactivity-disorder-an-update-of-the-evidence
#3
REVIEW
M Chamorro, J P Lara, I Insa, M Espadas, J A Alda-Diez
INTRODUCTION: Attention deficit hyperactivity disorder (ADHD) affects approximately 5% of all children and adolescents, and these patients frequently suffer from sleep problems. The association between sleep disorders and ADHD, however, is multifaceted and complex. AIMS: To explore the relationship between sleep disorders and ADHD. DEVELOPMENT: Sleep problems in children with ADHD include altered sleep and specific disorders per se or that may be due to comorbid psychiatric disorders or to the stimulants they receive as treatment for their ADHD...
May 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28444387/meiotic-genes-are-enriched-in-regions-of-reduced-archaic-ancestry
#4
B Jégou, S Sankararaman, A D Rolland, D Reich, F Chalmel
About 1-6% of the genetic ancestry of modern humans today originates from admixture with archaic humans. It has recently been shown that autosomal genomic regions with a reduced proportion of Neanderthal and Denisovan ancestries are significantly enriched in genes that are more expressed in testis than in other tissues. To determine whether a cellular segregation pattern would exist, we combined maps of archaic introgression with a cross-analysis of three transcriptomic datasets deciphering the transcriptional landscape of human gonadal cell types...
April 21, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28443654/quantifying-the-self-assembly-behavior-of-anisotropic-nanoparticles-using-liquid-phase-transmission-electron-microscopy
#5
Binbin Luo, John W Smith, Zihao Ou, Qian Chen
For decades, one of the overarching objectives of self-assembly science has been to define the rules necessary to build functional, artificial materials with rich and adaptive phase behavior from the bottom-up. To this end, the computational and experimental efforts of chemists, physicists, materials scientists, and biologists alike have built a body of knowledge that spans both disciplines and length scales. Indeed, today control of self-assembly is extending even to supramolecular and molecular levels, where crystal engineering and design of porous materials are becoming exciting areas of exploration...
April 26, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28443592/the-significance-of-a-neglected-romanian-book-the-methods-of-the-clinical-laboratory-by-ioan-manta-and-alexandru-ciplea
#6
Cristian Barsu
"The Methods of Clinical Laboratory" was the first comprehensive Romanian book in the medical laboratory field, having utility in clinical practice. It was written by Prof. Ioan Manta (1900-1979) and Alexandru Ciplea (1912-1988), both from the Cluj Faculty of Medicine. The volume was published for the first time in 1944, during the refuge of this Faculty in Sibiu, and for the second time in 1947, in Cluj. Our aim is to make a brief analysis of its structure and to put into evidence the importance of this book for the Romanian laboratory medicine, some techniques (e...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28443441/well-being-is-every-nurse-s-top-priority-unless-it-s-our-own
#7
Jane Bates
The recent survey by Nursing Standard and the Sunday Mirror painted a depressing picture of working in today's NHS.
April 26, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28443292/measurements-of-metastatic-renal-cell-tumours-as-determined-by-diffusion-weighted-imaging-or-computed-tomography-are-in-close-agreement-a-pilot-study
#8
J Farnebo, C Suzuki, R Vargas-Paris, P Sandström, L Blomqvist
BACKGROUND: Diffusion weighted magnetic resonance imaging (DWI) provides both functional and anatomical information regarding tumours but can also be used for tumour detection. Today, tumour treatment response in clinical trials is mainly assessed on Computed Tomography (CT) using established criteria. Despite availability of dedicated software, CT still requires significant manual work for selection and measurement in treatment response evaluation of solid tumours. PURPOSE: To compare the maximum diameter of tumour lesions on CT with the corresponding measurements on diffusion weighted images...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28443186/general-guidelines-for-biomedical-software-development
#9
REVIEW
Luis Bastiao Silva, Rafael C Jimenez, Niklas Blomberg, José Luis Oliveira
Most bioinformatics tools available today were not written by professional software developers, but by people that wanted to solve their own problems, using computational solutions and spending the minimum time and effort possible, since these were just the means to an end. Consequently, a vast number of software applications are currently available, hindering the task of identifying the utility and quality of each. At the same time, this situation has hindered regular adoption of these tools in clinical practice...
2017: F1000Research
https://www.readbyqxmd.com/read/28442683/achievements-and-limits-of-current-medical-therapy-of-glaucoma
#10
Pelagia Kalouda, Christina Keskini, Eleftherios Anastasopoulos, Fotis Topouzis
Prescribing medical therapy for the treatment of glaucoma can be a complex process since many parameters should be taken into consideration regarding its achievements and limits. Today, a variety of options, including multiple drug classes and multiple agents within classes, are available to the clinician, but caution should be given to their side effects and contraindications. Glaucoma patients with preexisting ocular surface disease should be treated with caution, and preferably with preservative-free formulations, as there is an increased risk for symptom deterioration...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442608/unexpected-relations-of-historical-anthrax-strain
#11
M H Antwerpen, J W Sahl, D Birdsell, T Pearson, M J Pearce, C Redmond, H Meyer, P S Keim
In 1998, it was claimed that an 80-year-old glass tube intentionally filled with Bacillus anthracis and embedded in a sugar lump as a WWI biological weapon still contained viable spores. Today, genome sequencing of three colonies isolated in 1998 and subjected to phylogenetic analysis surprisingly identified a well-known B. anthracis reference strain isolated in the United States in 1981, pointing to accidental laboratory contamination.IMPORTANCE Next-generation sequencing and subsequent phylogenetic analyses are useful and reliable tools for the classification of recent and historical samples...
April 25, 2017: MBio
https://www.readbyqxmd.com/read/28441870/protein-nanocellulose-interactions-in-paper-filters-for-advanced-separation-applications
#12
Simon Johan Gustafsson, Levon Manukyan, Albert Mihranyan
Protein-based pharmaceutics are widely explored for healthcare applications, and six out of ten best selling drugs today are biologicals. The goal of this work was to evaluate the protein nanocellulose interactions in paper filter for advanced separation applications such as virus removal filtration and bioprocessing. The protein recovery was measured for bovine serum albumin (BSA), γ-Globulin and Lysozyme using biuret total protein reagent and polyacrylamide gel electrophoresis (SDS-PAGE), and the throughput was characterized in terms of flux values from fixed volume filtrations at various protein concentrations and under worst-case experimental conditions...
April 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28441777/health-effects-of-psidium-guajava-l-leaves-an-overview-of-the-last-decade
#13
REVIEW
Elixabet Díaz-de-Cerio, Vito Verardo, Ana María Gómez-Caravaca, Alberto Fernández-Gutiérrez, Antonio Segura-Carretero
Today, there is increasing interest in discovering new bioactive compounds derived from ethnomedicine. Preparations of guava (Psidium guajava L.) leaves have traditionally been used to manage several diseases. The pharmacological research in vitro as well as in vivo has been widely used to demonstrate the potential of the extracts from the leaves for the co-treatment of different ailments with high prevalence worldwide, upholding the traditional medicine in cases such as diabetes mellitus, cardiovascular diseases, cancer, and parasitic infections...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441675/teaching-today-in-the-practice-setting-of-the-future-implementing-innovations-in-graduate-medical-education
#14
Jung G Kim, Carl G Morris, Paul Ford
PROBLEM: Implementing an innovation, such as offering new types of patient-physician encounters through the patient-centered medical home (PCMH) model while maintaining Accreditation Council for Graduate Medical Education (ACGME) accreditation standards (e.g., patient encounter minimums for trainees), is challenging. APPROACH: In 2009, the Group Health Family Medicine Residency (GHFMR) received an ACGME Program Experimentation and Innovation Project (PEIP) exception that redefined the minimum Family Medicine Resident Review Committee requirement to 1,400 face-to-face visits and 250 electronic visits (1 electronic visit defined as 3 secure message or telephone encounters)...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441652/ultraviolet-a1-phototherapy-in-the-treatment-of-early-mycosis-fungoides
#15
Esra Adışen, Volkan Tektaş, Funda Erduran, Özlem Erdem, Mehmet Ali Gürer
BACKGROUND: Phototherapy has been the mainstay of therapies for early mycosis fungoides (MF). The beneficial role of ultraviolet (UV) light on MF is suggested by the observation that lesions occur on non-sun-exposed areas. Therapeutic light sources that are available today are broadband UVB, psoralen and UVA, narrowband UVB, and long-wave UV (UVA1). Current literature provides increasing evidence on the use of UVA1 to treat MF. AIM: To investigate the treatment responses of early MF patients treated with fixed 30 J/cm2 doses of UVA1 phototherapy...
April 26, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28441512/a-historical-perspective-on-the-transport-of-premature-infants
#16
Shannon E Perry
A premature newborn was first transported via helicopter from place of birth to a specialty nursery 50 years ago. Since that time, the care of high-risk and premature newborns has evolved, but specialized services are not always available at the birth site. As a result, the demand for newborn transfer continues to grow. Today, neonates are transported to tertiary centers via ground ambulances, helicopters, and airplanes by highly trained personnel using sophisticated incubators and equipment.
April 22, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28440997/-neisseria-meningitidis-a-clinical-case-with-multi-organ-affection
#17
Alejandro Medina-Reyes, Beatriz Díaz-Polanco, Diego Sandoval-Chávez, Manuel Nodal-Hernández, Juan R Ayala-Franco
Neisseria meningitidis (Nm) is an agent feared for decades in the medical field due to its important morbidity and mortality. Ironically between 10 and 15% of the population will be asymptomatic carriers of this germ, which will also be ready to activate and manifest itself as a sickness at the right moment. We present the case of a nine-year-old girl who arrived at the Pediatric Emergency Service (to the Hospital General Region number 35, in Ciudad Juárez, Chihuahua) with the disease in multiple organs, where the Nm was isolated in the cerebrospinal fluid and in skin injuries, displaying three serotypes of Nm...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28440853/antibiotic-strategies-for-eradicating-pseudomonas-aeruginosa-in-people-with-cystic-fibrosis
#18
REVIEW
Simon C Langton Hewer, Alan R Smyth
BACKGROUND: Respiratory tract infection with Pseudomonas aeruginosa occurs in most people with cystic fibrosis. Once chronic infection is established, Pseudomonas aeruginosa is virtually impossible to eradicate and is associated with increased mortality and morbidity. Early infection may be easier to eradicate.This is an update of a Cochrane review first published in 2003, and previously updated in 2006, 2009 and 2014. OBJECTIVES: To determine whether antibiotic treatment of early Pseudomonas aeruginosa infection in children and adults with cystic fibrosis eradicates the organism, delays the onset of chronic infection, and results in clinical improvement...
April 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28440775/epidemiological-bases-and-molecular-mechanisms-linking-obesity-diabetes-and-cancer
#19
María Gutiérrez-Salmerón, Ana Chocarro-Calvo, José Manuel García-Martínez, Antonio de la Vieja, Custodia García-Jiménez
The association between diabetes and cancer was hypothesized almost one century ago. Today, a vast number of epidemiological studies support that obese and diabetic populations are more likely to experience tissue-specific cancers, but the underlying molecular mechanisms remain unknown. Obesity, diabetes, and cancer share many hormonal, immune, and metabolic changes that may account for the relationship between diabetes and cancer. In addition, antidiabetic treatments may have an impact on the occurrence and course of some cancers...
February 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28439493/targeted-therapies-in-breast-cancer-new-challenges-to-fight-against-resistance
#20
REVIEW
Viviana Masoud, Gilles Pagès
Breast cancer is the most common type of cancer found in women and today represents a significant challenge to public health. With the latest breakthroughs in molecular biology and immunotherapy, very specific targeted therapies have been tailored to the specific pathophysiology of different types of breast cancers. These recent developments have contributed to a more efficient and specific treatment protocol in breast cancer patients. However, the main challenge to be further investigated still remains the emergence of therapeutic resistance mechanisms, which develop soon after the onset of therapy and need urgent attention and further elucidation...
April 10, 2017: World Journal of Clinical Oncology
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