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https://www.readbyqxmd.com/read/28088075/development-of-a-hypoxia-triggered-and-hypoxic-radiosensitized-liposome-as-a-doxorubicin-carrier-to-promote-synergetic-chemo-radio-therapy-for-glioma
#1
Hongmei Liu, Yandong Xie, Yafei Zhang, Yifan Cai, Baiyang Li, Honglin Mao, Yingguo Liu, Jun Lu, Longzhen Zhang, Rutong Yu
The treatment of malignant primary brain tumors is challenging. Concomitant radiochemotherapy has become the standard clinical treatment for malignant glioma, but there are two critical challenges to overcome in order to increase efficacy. First, glioma is known to have increased resistant to radiation due to its intra-tumoral hypoxia. In addition, the blood-brain barrier (BBB) restricts the distribution of the chemotherapeutic agent to the brain. Therefore, we developed a hypoxic radiosensitizer-prodrug liposome (MLP), in order to deliver DOX to the tumor and to overcome the above challenges, achieving a synergistic chemo-/radiotherapy treatment of malignant glioma...
January 3, 2017: Biomaterials
https://www.readbyqxmd.com/read/28088073/strategies-to-design-clinical-studies-to-identify-predictive-biomarkers-in-cancer-research
#2
REVIEW
Jose Luis Perez-Gracia, Miguel F Sanmamed, Ana Bosch, Ana Patiño-Garcia, Kurt A Schalper, Victor Segura, Joaquim Bellmunt, Josep Tabernero, Christopher J Sweeney, Toni K Choueiri, Miguel Martín, Juan Pablo Fusco, Maria Esperanza Rodriguez-Ruiz, Alfonso Calvo, Celia Prior, Luis Paz-Ares, Ruben Pio, Enrique Gonzalez-Billalabeitia, Alvaro Gonzalez Hernandez, David Páez, Jose María Piulats, Alfonso Gurpide, Mapi Andueza, Guillermo de Velasco, Roberto Pazo, Enrique Grande, Pilar Nicolas, Francisco Abad-Santos, Jesus Garcia-Donas, Daniel Castellano, María J Pajares, Cristina Suarez, Ramon Colomer, Luis M Montuenga, Ignacio Melero
The discovery of reliable biomarkers to predict efficacy and toxicity of anticancer drugs remains one of the key challenges in cancer research. Despite its relevance, no efficient study designs to identify promising candidate biomarkers have been established. This has led to the proliferation of a myriad of exploratory studies using dissimilar strategies, most of which fail to identify any promising targets and are seldom validated. The lack of a proper methodology also determines that many anti-cancer drugs are developed below their potential, due to failure to identify predictive biomarkers...
December 30, 2016: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28088014/reduced-complexity-of-force-and-muscle-activity-during-low-level-isometric-contractions-of-the-ankle-in-diabetic-individuals
#3
E Y Suda, P Madeleine, R P Hirata, A Samani, T T Kawamura, I C N Sacco
BACKGROUND: This study evaluated the structure and amount of variability of surface electromyography (sEMG) patterns and ankle force data during low-level isometric contractions in diabetic subjects with different degrees of neuropathy. METHODS: We assessed 10 control subjects and 38 diabetic patients, classified as absent, mild, moderate, or severe neuropathy, by a fuzzy system based on clinical variables. Multichannel sEMG (64-electrode matrix) of tibialis anterior and gastrocnemius medialis muscles were acquired during isometric contractions at 10%, 20%, and 30% of the maximum voluntary contraction, and force levels during dorsi- and plantarflexion were recorded...
January 4, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28087958/the-teaching-of-trauma-management-in-undergraduate-medical-education
#4
S K Lum, T Subramaniam
BACKGROUND: The teaching of trauma in medical schools faces many educational and logistic challenges. Issues on what to teach, how to teach, when to teach, who will teach and whether medical students with insufficient exposure to clinical medicine can benefit from a trauma course are unclear. MATERIALS AND METHODS: A well-designed one day intensive trauma course concentrating on the primary survey was taught to semester seven and semester eight students by a multi-disciplinary team comprising of surgeons, anaesthetists, emergency physicians and trained medical officers...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087944/laboratory-diagnosis-and-susceptibility-testing-for-mycobacterium-tuberculosis
#5
Gary W Procop
The laboratory, which utilizes some of the most sophisticated and rapidly changing technologies, plays a critical role in the diagnosis of tuberculosis. Some of these tools are being employed in resource-challenged countries for the rapid detection and characterization of Mycobacterium tuberculosis. Foremost, the laboratory defines appropriate specimen criteria for optimal test performance. The direct detection of mycobacteria in the clinical specimen, predominantly done by acid-fast staining, may eventually be replaced by rapid-cycle PCR...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087924/clinical-testing-of-tuberculosis-vaccine-candidates
#6
Mark Hatherill, Dereck Tait, Helen McShane
It is almost 100 years since the development of bacille Calmette-Guérin (BCG), the only licensed vaccine against tuberculosis (TB). While BCG does confer consistent protection against disseminated disease, there is an urgent need for a more effective vaccine against pulmonary disease. There are several indications for such an improved vaccine, including prevention of infection, prevention of disease, and a therapeutic vaccine to prevent recurrent disease. The two main approaches to TB vaccine development are developing an improved whole mycobacterial priming agent to replace BCG and/or developing a subunit booster vaccine to be administered after a BCG or BCG replacement priming vaccination...
October 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087540/international-evidence-based-consensus-diagnostic-criteria-for-hhv-8-negative-idiopathic-multicentric-castleman-disease
#7
David C Fajgenbaum, Thomas S Uldrick, Adam Bagg, Dale Frank, David Wu, Gordan Srkalovic, David Simpson, Amy Y Liu, David Menke, Shanmuganathan Chandrakasan, Mary Jo Lechowicz, Raymond S M Wong, Sheila Pierson, Michele Paessler, Jean-François Rossi, Makoto Ide, Jason Ruth, Michael Croglio, Alexander Suarez, Vera Krymskaya, Amy Chadburn, Gisele Colleoni, Sunita Nasta, Raj Jayanthan, Christopher S Nabel, Corey Casper, Angela Dispenzieri, Alexander Fosså, Dermot Kelleher, Razelle Kurzrock, Peter Voorhees, Ahmet Dogan, Kazuyuki Yoshizaki, Frits van Rhee, Eric Oksenhendler, Elaine S Jaffe, Kojo S J Elenitoba-Johnson, Megan S Lim
Human Herpesvirus-8(HHV-8)-negative, idiopathic multicentric Castleman disease (iMCD) is a rare and life-threatening disorder involving systemic inflammatory symptoms, polyclonal lymphoproliferation, cytopenias, and multiple organ system dysfunction due to a cytokine storm often including interleukin-6. iMCD accounts for one-third to one-half of all cases of MCD and can occur in individuals of any age. Accurate diagnosis is challenging, as no standard diagnostic criteria or diagnostic biomarkers currently exist, and there is significant overlap with malignant, autoimmune, and infectious disorders...
January 13, 2017: Blood
https://www.readbyqxmd.com/read/28087487/bioprinting-for-vascular-and-vascularized-tissue-biofabrication
#8
REVIEW
Pallab Datta, Bugra Ayan, Ibrahim T Ozbolat
: Bioprinting is a promising technology to fabricate design-specific tissue constructs due to its ability to create complex, heterocellular structures with anatomical precision. Bioprinting enables the deposition of various biologics including growth factors, cells, genes, neo-tissues and extra-cellular matrix-like hydrogels. Benefits of bioprinting have started to make a mark in the fields of tissue engineering, regenerative medicine and pharmaceutics. Specifically, in the field of tissue engineering, the creation of vascularized tissue constructs has remained a principal challenge till date...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087424/clinical-applications-of-maldi-imaging-technologies-in-cancer-and-neurodegenerative-diseases
#9
REVIEW
Yasemin Ucal, Zeynep Aslıhan Durer, Hakan Atak, Elif Kadioglu, Betul Sahin, Abdurrahman Coskun, Ahmet Tarık Baykal, Aysel Ozpinar
Matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) imaging mass spectrometry (IMS) enables localization of analytes of interest along with histology. More specifically, MALDI-IMS identifies the distributions of proteins, peptides, small molecules, lipids, and drugs and their metabolites in tissues, with high spatial resolution. This unique capacity to directly analyze tissue samples without the need for lengthy sample preparation reduces technical variability and renders MALDI-IMS ideal for the identification of potential diagnostic and prognostic biomarkers and disease gradation...
January 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28087407/polymeric-micelles-for-ocular-drug-delivery-from-structural-frameworks-to-recent-preclinical-studies
#10
REVIEW
Abhirup Mandal, Rohit Bisht, Ilva D Rupenthal, Ashim K Mitra
Effective intraocular drug delivery poses a major challenge due to the presence of various elimination mechanisms and physiological barriers that result in low ocular bioavailability after topical application. Over the past decades, polymeric micelles have emerged as one of the most promising drug delivery platforms for the management of ocular diseases affecting the anterior (dry eye syndrome) and posterior (age-related macular degeneration, diabetic retinopathy and glaucoma) segments of the eye. Promising preclinical efficacy results from both in-vitro and in-vivo animal studies have led to their steady progression through clinical trials...
January 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28087382/efficacy-and-safety-of-high-dose-rush-oral-immunotherapy-in-persistent-egg-allergic-children-a-randomized-clinical-trial
#11
Inmaculada Pérez-Rangel, Pablo Rodríguez Del Río, Carmelo Escudero, Silvia Sánchez-García, José Javier Sánchez-Hernández, María Dolores Ibáñez
BACKGROUND: Egg oral immunotherapy is effective but time consuming. OBJECTIVE: To assess the efficacy and safety of egg rush oral immunotherapy (ROIT) with a targeted dose equivalent to a raw egg white. METHODS: Thirty-three persistent egg allergic children confirmed by double-blind, placebo-controlled food challenge (DBPCFC) were randomized to receive egg ROIT immediately after randomization (ROIT1 group), or to continue an egg avoidance diet for 5 months after randomization (control group [CG])...
January 10, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28087351/central-nervous-system-vasculitis-in-adults-an-update
#12
REVIEW
Lívia Almeida Dutra, Alexandre Wagner Silva de Souza, Gabriela Grinberg-Dias, Orlando Graziani Povoas Barsottini, Simone Appenzeller
Primary central nervous system vasculitis (PCNSV) is a challenging diagnosis due to broad clinical manifestations and variable specificity and sensitivity of laboratory and imaging diagnostic tools. Differential diagnosis include reversible cerebral vasoconstriction syndrome (RCVS), secondary vasculitis of the CNS and other noninflammatory vasculopathies. Brain biopsy is essential for definitive diagnosis and to exclude mimickers. Recent data show data large-vessel PCNSV present worse prognosis when compared to small-vessel PCNSV...
January 10, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28087349/combination-of-multiple-ligation-dependent-probe-amplification-and-illumina-miseq-amplicon-sequencing-for-tsc1-tsc2-gene-analyses-in-patients-with-tuberous-sclerosis-complex
#13
Nur Farrah Dila Ismail, Abdul Qawee Rani, Nik Mohd Ariff Nik Abdul Malik, Chia Boon Hock, Siti Nabilahuda Mohd Azlan, Salmi Abdul Razak, Wee Teik Keng, Lock Hock Ngu, Abdul Rashid Silawati, Nor AzniYahya, Narazah Mohd Yusoff, Teguh Haryo Sasongko, Zabidi Azhar Mohd Hussin
Tuberous sclerosis complex (TSC) is an autosomal dominant neurocutaneous disorder characterized by tumor growth in multiple organs and caused by mutations in either TSC1 or TSC2 genes. Because of their relatively large genomic sizes, absence of hotspots, and common type of mutations, mutation detection in TSC1 and TSC2 genes has been challenging. We devised a combination of multiple ligation-dependent probe amplification (MLPA) and amplicon sequencing (AS) to simplify the detection strategy, yet we come up with reasonably high detection rate...
January 10, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28087318/etiologies-of-community-onset-urinary-tract%C3%A2-infections-requiring-hospitalization-and%C3%A2-antimicrobial-susceptibilities-of%C3%A2-causative-microorganisms
#14
Chih-Chien Chiu, Tzu-Chao Lin, Rui-Xin Wu, Ya-Sung Yang, Po-Jen Hsiao, Yi Lee, Jung-Chung Lin, Feng-Yee Chang
BACKGROUND: Community-onset urinary tract infections (CoUTIs) are the most common bacterial infections, and a decline in antibiotic susceptibility causes many clinical challenges. Adequate empiric antibiotic treatment can decrease unnecessary hospital stays and complications, while reducing the antimicrobial resistance progression. METHODS: From October 2014 to April 2015, we retrospectively enrolled patients who were at least 18 years old and required hospitalization for CoUTIs...
December 18, 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28087148/immunogenicity-differences-of-a-15-valent-pneumococcal-polysaccharide-conjugate-vaccine-pcv15-based-on-vaccine-dose-route-of-immunization-and-mouse-strain
#15
REVIEW
Ivette Caro-Aguilar, Lani Indrawati, Robin M Kaufhold, Christine Gaunt, Yuhua Zhang, Denise K Nawrocki, Cecilia Giovarelli, Michael A Winters, William J Smith, Jon Heinrichs, Julie M Skinner
Pneumococcal disease continues to be a medical need even with very effective vaccines on the market. Globally, there are extensive research efforts to improve serotype coverage with novel vaccines; therefore, conducting preclinical studies in different animal models becomes essential. The work presented herein focuses on evaluating a 15-valent pneumococcal conjugate vaccine (PCV15) in mice. Initially we evaluated several doses of PCV15 in Balb/c mice. The optimal vaccine dose was determined to be 0.4μg per pneumococcal polysaccharide (PS) (0...
January 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28087139/retention-of-faculty-of-color-in-academic-nursing
#16
Nalo Hamilton, Emily A Haozous
BACKGROUND: Racial and ethnic diversity among nursing faculty is low, preventing schools of nursing (SON) from reflecting the populations that they serve academically and clinically. Few studies address the experience and success of faculty of color (FOC) in nursing. PURPOSE: The purpose of this article is to summarize the current literature related to FOC retention and promotion. METHODS: We reviewed 25 articles from the nursing literature following PRISMA guidelines, using a critical race theory framework...
December 8, 2016: Nursing Outlook
https://www.readbyqxmd.com/read/28087116/application-of-whole-exome-sequencing-in-elucidating-the-phenotype-and-genotype-spectrum-of-junctional-epidermolysis-bullosa-a-preliminary-experience-of-a-tertiary-care-centre-in-india
#17
Vamsi K Yenamandra, Shamsudheen K Vellarikkal, Manoj Kumar, Madhumita R Chowdhury, Rijith Jayarajan, Ankit Verma, Vinod Scaria, Sridhar Sivasubbu, Subrata B Ray, Amit K Dinda, Madhulika Kabra, Punit Kaur, Vinod K Sharma, Gomathy Sethuraman
BACKGROUND: Junctional epidermolysis bullosa (JEB) is a diverse group of genodermatoses associated with extreme skin fragility. Despite several well-characterized genetic studies, molecular diagnosis of this heterogeneous group is still challenging. Recent advances in the field of genomics have seen the successful implementation of whole exome sequencing (WES) as a fast and efficient diagnostic strategy in several genodermatoses. OBJECTIVE: In view of the scarcity and need of molecular studies for JEB in India, we sought to explore the potential of WES in understanding the mutational spectrum of this rare, in certain subtypes lethal, sub-group of EB...
December 29, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28087102/feature-selection-for-outcome-prediction-in-oesophageal-cancer-using-genetic-algorithm-and-random-forest-classifier
#18
Desbordes Paul, Ruan Su, Modzelewski Romain, Vauclin Sébastien, Vera Pierre, Gardin Isabelle
The outcome prediction of patients can greatly help to personalize cancer treatment. A large amount of quantitative features (clinical exams, imaging, …) are potentially useful to assess the patient outcome. The challenge is to choose the most predictive subset of features. In this paper, we propose a new feature selection strategy called GARF (genetic algorithm based on random forest) extracted from positron emission tomography (PET) images and clinical data. The most relevant features, predictive of the therapeutic response or which are prognoses of the patient survival 3 years after the end of treatment, were selected using GARF on a cohort of 65 patients with a local advanced oesophageal cancer eligible for chemo-radiation therapy...
December 28, 2016: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28087099/prognostic-and-predictive-indicators-in-early-stage-breast-cancer-and-the-role-of-genomic-profiling-focus-on-the-oncotype-dx-%C3%A2-breast-recurrence-score-assay
#19
E Curtit, L Mansi, Y Maisonnette-Escot, J-L Sautière, X Pivot
Although useful prognostic and predictive insights can be gained from patient and tumour characteristics in early-stage breast cancer, it is not always straightforward to predict the likely risk of recurrence for each individual patient following breast surgery. One of the most difficult challenges faced by clinicians is identifying patients who may benefit most from adjuvant chemotherapy, and distinguishing these cases from those where endocrine therapy may be sufficient for cure. Genomic tests such as the Oncotype DX(®) Breast Recurrence Score(®) Assay have been developed to provide a robust and clinically validated assessment of a patient's individual tumour signature...
December 14, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28087059/fatigue-in-parkinson-s-disease
#20
REVIEW
Karen Herlofson, Benzi M Kluger
Fatigue is one of the most common nonmotor symptoms in Parkinson's disease and may affect a wide range of everyday activities, cause disability and reduce quality of life. It occurs at every stage of PD, and once present will often persist and may worsen over time. Lack of a consensus of definition and classification, and a range of different self-reporting scales has so far made the study of fatigue challenging. We review a unifying taxonomy for defining fatigue in clinical and research contexts as well as case definition criteria for PD-related fatigue...
December 29, 2016: Journal of the Neurological Sciences
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