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https://www.readbyqxmd.com/read/28230915/a-singlet-oxygen-generating-agent-by-chirality-dependent-plasmonic-shell-satellite-nanoassembly
#1
Fengli Gao, Maozhong Sun, Wei Ma, Xiaoling Wu, Liqiang Liu, Hua Kuang, Chuanlai Xu
Photodynamic therapy (PDT) agent, which generates singlet oxygen ((1) O2 ) under light, has attracted significant attention for its broad biological and medical applications. Here, DNA-driven shell-satellite (SS) gold assemblies as chiral photosensitizers are first fabricated. The chiral plasmonic nanostructure, coupling with cysteine enantiomers on its surface, exhibits intense chiroplasmonic activities (-40.2 ± 2.6 mdeg) in the visible region. These chiral SS nanoassemblies have high reactive oxygen species generating efficiency under circular polarized light illumination, resulting in a (1) O2 quantum yield of 1...
February 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28227837/progressive-abduction-loading-therapy-targeting-flexion-synergy-to-regain-reaching-function-in-chronic-stroke-preliminary-results-from-an-rct
#2
Michael D Ellis, Carolina Carmona, Justin Drogos, Stuart Traxel, Julius P A Dewald, Michael D Ellis, Carolina Carmona, Justin Drogos, Stuart Traxel, Julius P A Dewald, Stuart Traxel, Michael D Ellis, Carolina Carmona, Julius P A Dewald, Justin Drogos
Reaching function is impaired following stroke due to abnormal coupling of shoulder abduction and elbow flexion. This phenomenon is commonly referred to as flexion synergy, loss of independent joint control, or impaired joint individuation. We have been successful in treating individuals with chronic stroke with moderate to severe motor impairments through the employment of targeted rehabilitation robotics and identified progressive abduction loading as a key element to the rehabilitation of reaching. Here we expand upon the investigation of progressive abduction loading therapy by testing two variants of the exercise in a larger sample and including a 3-month follow-up...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227180/electrical-stimulation-of-the-saphenous-nerve-in-anesthetized-rats-a-novel-therapeutic-approach-to-treating-overactive-bladder
#3
Zainab Moazzam, Paul B Yoo, Zainab Moazzam, Paul B Yoo, Paul B Yoo, Zainab Moazzam
Posterior Tibial Nerve Stimulation (PTNS) is a minimally invasive yet effective therapy for treating overactive bladder (OAB) symptoms with electrical stimulations applied at 20 Hz coupled with amplitudes approximating the foot-twitch threshold (T). However, pre-clinical studies indicate that PTNS-evoked bladder reflexes require stimulation amplitudes exceeding 2T. The objective of this work was to evaluate the presence of secondary low-threshold sensory pathways in the hind-limb region that can be a potential target of activation during clinical PTNS set-up...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223719/hepatitis-c-virus-associated-pruritus-etiopathogenesis-and-therapeutic-strategies
#4
EDITORIAL
Youssef Alhmada, Denis Selimovic, Fadi Murad, Sarah-Lilly Hassan, Youssef Haikel, Mossaad Megahed, Matthias Hannig, Mohamed Hassan
In addition to its contributing role in the development of chronic liver diseases, chronic hepatitis C virus (HCV) infection is associated with extrahepatic manifestations, particularly, cutaneous-based disorders including those with pruritus as a symptom. Pruritus is frequently associated with the development of chronic liver diseases such as cholestasis and chronic viral infection, and the accumulation of bile acids in patients' sera and tissues as a consequence of liver damage is considered the main cause of pruritus...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28223472/overexpression-of-sarcoendoplasmic-reticulum-calcium-atpase-2a-promotes-cardiac-sympathetic-neurotransmission-via-abnormal-endoplasmic-reticulum-and-mitochondria-ca-2-regulation
#5
Julia Shanks, Neil Herring, Errin Johnson, Kun Liu, Dan Li, David J Paterson
Reduced cardiomyocyte excitation-contraction coupling and downregulation of the SERCA2a (sarcoendoplasmic reticulum calcium ATPase 2a) is associated with heart failure. This has led to viral transgene upregulation of SERCA2a in cardiomyocytes as a treatment. We hypothesized that SERCA2a gene therapy expressed under a similar promiscuous cytomegalovirus promoter could also affect the cardiac sympathetic neural axis and promote sympathoexcitation. Stellate neurons were isolated from 90 to 120 g male, Sprague-Dawley, Wistar Kyoto, and spontaneously hypertensive rats...
February 21, 2017: Hypertension
https://www.readbyqxmd.com/read/28223438/dysregulated-gpcr-signaling-and-therapeutic-options-in-uveal-melanoma
#6
Vivian Chua, Dominic Lapadula, Clinita Randolph, Jeffrey L Benovic, Philip Wedegaertner, Andrew E Aplin
: Uveal melanoma (UM) is the most common primary intraocular malignant tumor in adults and arises from the transformation of melanocytes in the uveal tract. Even after treatment of the primary tumor, up to 50% of patients succumb to metastatic disease. The liver is the predominant organ of metastasis. There is an important need to provide effective treatment options for advanced stage UM. In order to provide the preclinical basis for new treatments, it is important to understand the molecular underpinnings of the disease...
February 21, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28219028/identifying-women-at-risk-for-sustained-postpartum-anxiety
#7
Cindy-Lee Dennis, Hilary K Brown, Kobra Falah-Hassani, Flavia Casasanta Marini, Simone N Vigod
INTRODUCTION: To describe the prevalence of sustained postpartum anxiety and to develop a multifactorial predictive model to assist in targeted screening procedures. METHODS: In a population-based cohort in a health region near Vancouver, Canada, 522 mothers completed a mailed questionnaire at 1, 4, and 8 weeks postpartum measuring socio-demographic, biological, pregnancy-related, life stressor, social support, obstetric, and maternal adjustment factors. We undertook a sequential logistic regression analysis to develop a multifactorial predictive model of sustained postpartum anxiety, as measured by a State Trait Anxiety Inventory (STAI) score >40 at 1 week and/or 4 weeks, and 8 weeks postpartum...
February 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28216127/speaking-related-changes-in-cortical-functional-connectivity-associated-with-assisted-and-spontaneous-recovery-from-developmental-stuttering
#8
Christian A Kell, Katrin Neumann, Marion Behrens, Alexander W von Gudenberg, Anne-Lise Giraud
We previously reported speaking-related activity changes associated with assisted recovery induced by a fluency shaping therapy program and unassisted recovery from developmental stuttering (Kell et al., Brain 2009). While assisted recovery re-lateralized activity to the left hemisphere, unassisted recovery was specifically associated with the activation of the left BA 47/12 in the lateral orbitofrontal cortex. These findings suggested plastic changes in speaking-related functional connectivity between left hemispheric speech network nodes...
February 13, 2017: Journal of Fluency Disorders
https://www.readbyqxmd.com/read/28215826/cardiovascular-risk-and-communication-among-early-stage-breast-cancer-survivors
#9
Allison H Christian, Denalee O'Malley, Ana Barac, Suzanne M Miller, Shawna V Hudson
OBJECTIVE: African American (AA) women have disproportionately high rates of cardiovascular (CV) risk factors that, coupled with potentially cardiotoxic breast cancer (BC) therapies, place them at risk of adverse CV outcomes. The purpose of this study was to assess CV risk factors among white and AA BC survivors and perceptions of patient-provider CV-related communication and post-treatment information needs. METHODS: Early-stage, English-speaking BC survivors were recruited through community-based survivorship organizations/clinics in New Jersey...
February 10, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28213505/revealing-the-concealed-nature-of-long-qt-type-3-syndrome
#10
Amara Greer-Short, Sharon A George, Steven Poelzing, Seth H Weinberg
BACKGROUND: Gain-of-function mutations in the voltage-gated sodium channel (Nav1.5) are associated with the long-QT-3 (LQT3) syndrome. Nav1.5 is densely expressed at the intercalated disk, and narrow intercellular separation can modulate cell-to-cell coupling via extracellular electric fields and depletion of local sodium ion nanodomains. Models predict that significantly decreasing intercellular cleft widths slows conduction because of reduced sodium current driving force, termed "self-attenuation...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28210478/the-twin-epidemic-in-infertility-care-why-do-we-persist-in-transferring-too-many-embryos
#11
EDITORIAL
W Ombelet
The epidemic of iatrogenic multiple births as a result of infertility treatment are responsible for an unacceptable high incidence of maternal, perinatal and childhood morbidity and mortality. Healthcare costs due to infertility therapy are too high and this may lead to social and political concern. The introduction of single embryo transfer (SET) was a real breakthrough, but was only accepted in most European countries and Japan. The United States, Latin America and most developing countries still have high multiple pregnancy rates...
December 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28209726/therapeutic-targeting-of-the-pathological-triad-of-extrasynaptic-nmda-receptor-signaling-in-neurodegenerations
#12
REVIEW
Hilmar Bading
Activation of extrasynaptic N-methyl-d-aspartate (NMDA) receptors causes neurodegeneration and cell death. The disease mechanism involves a pathological triad consisting of mitochondrial dysfunction, loss of integrity of neuronal structures and connectivity, and disruption of excitation-transcription coupling caused by CREB (cyclic adenosine monophosphate-responsive element-binding protein) shut-off and nuclear accumulation of class IIa histone deacetylases. Interdependency within the triad fuels an accelerating disease progression that culminates in failure of mitochondrial energy production and cell loss...
February 16, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28209492/reproductive-considerations-in-the-setting-of-chronic-viral-illness
#13
REVIEW
Brent M Hanson, Jessie A Dorais
Special considerations must be taken when patients with human immunodeficiency virus (HIV), Hepatitis B, or Hepatitis C desire to achieve pregnancy. Patients with chronic viral illnesses desire children at rates similar to the general population, and options are available to decrease both vertical transmission and viral transmission between partners. Preconception counseling or consultation with fertility specialists is imperative in patients with HIV, Hepatitis B, and Hepatitis C so that reproductive goals can be addressed and optimized...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28209060/the-use-of-spectroscopic-techniques-for-evaluating-the-coupling-of-porphyrins-on-biocompatible-nanoparticles-a-potential-system-for-photodynamics-theranostics-and-nano-drug-delivery-applications
#14
Lais N Magno, Fabio C Bezerra, Luiz E S Freire, Rubens A Guerra, Andris Figueiroa Bakuzis, Pablo Jose Goncalves
Modern medicine has been searching for new and more efficient strategies for diagnostics and therapeutics applications. Considering this, porphyrin molecules have received great interest for applications in photodiagnostics and phototherapies, even as magnetic nanoparticles for drug-delivery systems and magnetic-hyperthermia therapy. Aiming to obtain a multifunctional system, which combines diagnostics with therapeutic functions on the same platform, the present study employed UV/Vis absorption and fluorescence spectroscopies to evaluated the interaction between meso-tetrakis(p-sulfonatofenyl) porphyrin (TPPS) and maghemite nanoparticles (γ-Fe2O3)...
February 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28206803/mental-health-treatment-utilization-in-oif-oef-national-guard-and-reserve-troops-with-and-without-dsm-diagnoses
#15
Jennifer M Primack, Brian Borsari, Madeline B Benz, Madhavi K Reddy, M Tracie Shea
Military service members have an increased risk of developing mental health (MH) problems following deployment to Iraq or Afghanistan, yet only a small percentage seek mental health treatment. The aim of the present study was to explore patterns of MH service utilization within the first 12 months following return from combat deployment. Participants were 169 service members who had returned from war-zone deployment in either Iraq or Afghanistan and had assessments covering a 12-month period following their homecoming...
2017: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/28205405/mechanistics-and-photo-energetics-of-macrocycles-and-photodynamic-therapy-an-overview-of-aspects-to-consider-for-research
#16
Tamarisk K Horne, Marianne J Cronjé
Research within the field of photodynamic therapy has escalated over the past 20 years. The required conjunctional use of photosensitizers, particularly of the macrocycle structure, has lead to a vast repertoire of derivatives that branch classes and subclasses thereof. Each exhibits a differential range of physiochemical properties that influence their potential applications within the larger phototherapy field for use in either diagnostics, photodynamic therapy, both or none. Herein, we provide an overview of these properties as they relate to photodynamic therapy and to a lesser extent diagnostics...
February 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28205399/synthesis-characterization-and-relaxation-studies-of-gd-do3a-conjugate-of-chlorambucil-as-a-potential-theranostic-agent
#17
Jasleen Kaur, Yoanna Tsvetkova, Karim Arroub, Sabri Sahnoun, Fabian Kiessling, Sanjay Mathur
DO3A-based macrocycles serve as attractive templates from which clinically useful theranostic agents can be obtained after coupling with molecular targeted therapeutic drugs. In this study, we describe the chemical synthesis, relaxation, and cytotoxicity studies of a new DO3A conjugate of chlorambucil (CHL) as a magnetic resonance imaging (MRI) theranostic agent. A convenient route of synthesis is reported, which allowed conjugation of the macrocyclic ligand (DO3A) to the chemotherapeutic drug (CHL) via tyrosine for the preparation of an attractive chelate-drug ensemble (DO3A-TR-CHL)...
February 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28205204/the-score-family-assessment-questionnaire-a-decade-of-progress
#18
Alan Carr, Peter Stratton
This paper reviews a decade of research (2006-2016) on a family assessment instrument called the Systemic Clinical Outcome and Routine Evaluation (SCORE). The SCORE was developed in Europe to monitor progress and outcome in systemic therapy and has been adopted by the European Family Therapy Association as the main instrument for assessing the outcome in systemic family and couple therapy. There are currently six main versions of this instrument: SCORE-40, SCORE-15, SCORE-28, SCORE-29, Child SCORE-15, and Relational SCORE-15...
February 15, 2017: Family Process
https://www.readbyqxmd.com/read/28204913/accumulation-of-alpha-fluoro-beta-alanine-and-fluoro-mono-acetate-in-a-patient-with-5-fluorouracil-associated-hyperammonemia
#19
Yoshitaka Nishikawa, Taro Funakoshi, Takahiro Horimatsu, Shin'ichi Miyamoto, Takeshi Matsubara, Motoko Yanagita, Shunsaku Nakagawa, Atsushi Yonezawa, Kazuo Matsubara, Manabu Muto
PURPOSE: High-dose 5-fluorouracil (5-FU) containing chemotherapy occasionally causes hyperammonemia and can be lethal. However, the mechanism of 5FU-associated hyperammonemia has not been known. The aim of this study was to reveal the pharmacokinetics of 5-FU-associated hyperammonemia in a recurrent colorectal cancer patient with end-stage renal disease (ESRD). METHODS: We experienced a case of hyperammonemia during mFOLFOX6 plus bevacizumab therapy for recurrent colorectal cancer...
February 15, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28203296/incorporating-vegf-targeted-therapy-in-advanced-urothelial-cancer
#20
REVIEW
Sujata Narayanan, Sandy Srinivas
Patients with relapsed or refractory urothelial carcinoma (UC) have poor prognosis coupled with few options for systemic treatment. The role of angiogenesis in the evolution of cancers has been established, and studies have shown that it plays a key role in the pathogenesis of UC. Many targeted agents have been used in phase I-II trials for the treatment of UC, with encouraging but modest results. Recently, studies combining angiogenesis inhibitors with other chemotherapeutic agents were able to achieve objective responses higher than most commonly used second-line therapies in UC...
January 2017: Therapeutic Advances in Medical Oncology
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