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https://www.readbyqxmd.com/read/28102848/statins-in-anthracycline-induced-cardiotoxicity-rac-and-rho-and-the-heartbreakers
#1
REVIEW
Christian Henninger, Gerhard Fritz
Cancer patients receiving anthracycline-based chemotherapy are at risk to develop life-threatening chronic cardiotoxicity with the pathophysiological mechanism of action not fully understood. Besides the most common hypothesis that anthracycline-induced congestive heart failure (CHF) is mainly caused by generation of reactive oxygen species, recent data point to a critical role of topoisomerase II beta (TOP2B), which is a primary target of anthracycline poisoning, in the pathophysiology of CHF. As the use of the only clinically approved cardioprotectant dexrazoxane has been limited by the FDA in 2011, there is an urgent need for alternative cardioprotective measures...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28101364/hemodynamic-effects-of-electrical-muscle-stimulation-in-the-prophylaxis-of-deep-vein-thrombosis-for-intensive-care-unit-patients-a-randomized-trial
#2
Masahiro Ojima, Ryosuke Takegawa, Tomoya Hirose, Mitsuo Ohnishi, Tadahiko Shiozaki, Takeshi Shimazu
BACKGROUND: Deep vein thrombosis (DVT) is a major complication in critical care. There are various methods of prophylaxis, but none of them fully prevent DVT, and each method has adverse effects. Electrical muscle stimulation (EMS) could be a new effective approach to prevent DVT in intensive care unit (ICU) patients. We hypothesized that EMS increases the venous flow of the lower limbs and has a prophylactic effect against the formation of DVT. METHODS: This study included 26 patients admitted to a single ICU...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28100737/selectivity-in-postencoding-connectivity-with-high-level-visual-cortex-is-associated-with-reward-motivated-memory
#3
Vishnu P Murty, Alexa Tompary, R Alison Adcock, Lila Davachi
: Reward motivation has been demonstrated to enhance declarative memory by facilitating systems-level consolidation. Although high-reward information is often intermixed with lower reward information during an experience, memory for high value information is prioritized. How is this selectivity achieved? One possibility is that postencoding consolidation processes bias memory strengthening to those representations associated with higher reward. To test this hypothesis, we investigated the influence of differential reward motivation on the selectivity of postencoding markers of systems-level memory consolidation...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28097039/the-concept-of-wind-in-traditional-chinese-medicine
#4
REVIEW
Mehrab Dashtdar, Mohammad Reza Dashtdar, Babak Dashtdar, Karima Kardi, Mohammad Khabaz Shirazi
The use of folk medicine has been widely embraced in many developed countries under the name of traditional, complementary and alternative medicine (TCAM) and is now becoming the mainstream in the UK and the rest of Europe, as well as in North America and Australia. Diversity, easy accessibility, broad continuity, relatively low cost, base levels of technological inputs, fewer side effects, and growing economic importance are some of the positive features of folk medicine. In this framework, a critical need exists to introduce the practice of folk medicine into public healthcare if the goal of reformed access to healthcare facilities is to be achieved...
December 2016: Journal of Pharmacopuncture
https://www.readbyqxmd.com/read/28096194/autologous-cell-therapy-for-peripheral-arterial-disease-systematic-review-and-meta-analysis-of-randomized-non-randomized-and-non-controlled-studies
#5
Mauro Rigato, Matteo Monami, Gian Paolo Fadini
RATIONALE: Critical limb ischemia (CLI) is a life-threatening complication of peripheral arterial disease (PAD). In patients who are ineligible for revascularization procedures, there are few therapeutic alternatives, leading to amputations and death. OBJECTIVE: To provide a systematic review of the literature and a meta-analysis of studies evaluating safety and efficacy of autologous cell therapy for intractable PAD/CLI. METHODS AND RESULTS: We retrieved 19 randomized controlled trials (RCTs; 837 patients), 7 non-randomized trials (338 patients), and 41 non-controlled studies (1,177 patients)...
January 17, 2017: Circulation Research
https://www.readbyqxmd.com/read/28093494/exercise-dynamics-in-secondary-mitral-regurgitation-pathophysiology-and-therapeutic-implications
#6
Philippe B Bertrand, Ehud Schwammenthal, Robert A Levine, Pieter M Vandervoort
Secondary mitral valve regurgitation (MR) remains a challenging problem in the diagnostic workup and treatment of patients with heart failure. Although secondary MR is characteristically dynamic in nature and sensitive to changes in ventricular geometry and loading, current therapy is mainly focused on resting conditions. An exercise-induced increase in secondary MR, however, is associated with impaired exercise capacity and increased mortality. In an era where a multitude of percutaneous solutions are emerging for the treatment of patients with heart failure, it becomes important to address the dynamic component of secondary MR during exercise as well...
January 17, 2017: Circulation
https://www.readbyqxmd.com/read/28087891/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#7
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
January 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28087079/the-stim-orai-coupling-interface-and-gating-of-the-orai1-channel
#8
REVIEW
Yandong Zhou, Xiangyu Cai, Robert M Nwokonko, Natalia A Loktionova, Youjun Wang, Donald L Gill
In virtually all cells, store-operated Ca(2+) entry signals are vital in controlling a spectrum of functions. The signals are mediated by STIM proteins in the ER and Orai channels in the PM which undergo a dynamic coupling process within discrete ER-PM junctional regions. This coupling is initiated by depletion of ER stored Ca(2+) triggering STIM proteins to undergo an intricate activation process. Thereafter, STIM proteins become trapped in the ER-PM junctions where they tether and gate PM Orai Ca(2+) channels...
January 8, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28080965/feeling-learning-from-and-being-aware-of-inner-states-interoceptive-dimensions-in-neurodegeneration-and-stroke
#9
Indira García-Cordero, Lucas Sedeño, Laura de la Fuente, Andrea Slachevsky, Gonzalo Forno, Francisco Klein, Patricia Lillo, Jesica Ferrari, Clara Rodriguez, Julian Bustin, Teresa Torralva, Sandra Baez, Adrian Yoris, Sol Esteves, Margherita Melloni, Paula Salamone, David Huepe, Facundo Manes, Adolfo M García, Agustín Ibañez
Interoception is a complex process encompassing multiple dimensions, such as accuracy, learning and awareness. Here, we examined whether each of those dimensions relies on specialized neural regions distributed throughout the vast interoceptive network. To this end, we obtained relevant measures of cardiac interoception in healthy subjects and patients offering contrastive lesion models of neurodegeneration and focal brain damage: behavioural variant fronto-temporal dementia (bvFTD), Alzheimer's disease (AD) and fronto-insular stroke...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28073566/mixotrophy-in-the-phototrophic-dinoflagellate-takayama-helix-family-kareniaceae-predator-of-diverse-toxic-and-harmful-dinoflagellates
#10
Hae Jin Jeong, Jin Hee Ok, An Suk Lim, Ji Eun Kwon, So Jin Kim, Sung Yeon Lee
Takayama spp. are phototrophic dinoflagellates belonging to the family Kareniaceae and have caused fish kills in several countries. Understanding their trophic mode and interactions with co-occurring phytoplankton species are critical steps in comprehending their ecological roles in marine ecosystems, bloom dynamics, and dinoflagellate evolution. To investigate the trophic mode and interactions of Takayama spp., the ability of Takayama helix to feed on diverse algal species was examined, and the mechanisms of prey ingestion were determined...
December 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073554/an-overview-of-cyanobacterial-bloom-occurrences-and-research-in-africa-over-the-last-decade
#11
REVIEW
L L Ndlela, P J Oberholster, J H Van Wyk, P H Cheng
Cyanobacterial blooms are a current cause for concern globally, with vital water sources experiencing frequent and increasingly toxic blooms in the past decade. These increases are resultant of both anthropogenic and natural factors, with climate change being the central concern. Of the more affected parts of the world, Africa has been considered particularly vulnerable due to its historical predisposition and lag in social economic development. This review collectively assesses the available information on cyanobacterial blooms in Africa as well as any visible trends associated with reported occurrences over the last decade...
December 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073338/microaggressions-and-daily-experience
#12
Anthony D Ong, Anthony L Burrow
Psychologists use the term microaggressions to describe subtle forms of bias and discrimination experienced by members of marginalized groups. Lilienfeld (2017, this issue) makes an important contribution to the literature by presenting a critical review of the meaning and measurement of microaggression experiences. In this commentary, we argue that advancing the construct of microaggressions rests on research approaches that move beyond static representations of individuals to dynamic frameworks that observe people's lives as they unfold day to day...
January 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28059709/microstructure-of-the-default-mode-network-in-preterm-infants
#13
J Cui, O Tymofiyeva, R Desikan, T Flynn, H Kim, D Gano, C P Hess, D M Ferriero, A J Barkovich, D Xu
BACKGROUND AND PURPOSE: Diffusion and fMRI has been providing insights to brain development in addition to anatomic imaging. This study aimed to evaluate the microstructure of white matter tracts underlying the default mode network in premature infants by using resting-state functional MR imaging in conjunction with diffusion tensor imaging-based tractography. MATERIALS AND METHODS: A cohort of 44 preterm infants underwent structural T1-weighted imaging, resting-state fMRI, and DTI at 3T, including 21 infants with brain injuries and 23 infants with normal-appearing structural imaging as controls...
November 10, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28053928/synaptonemal-complex-protein-3-transcript-analysis-in-breast-cancer
#14
Maryam Beigom Mobasheri, Reza Shirkoohi, Mohammad Hossein Modarressi
BACKGROUND: Breast cancer is the most frequent cancer in women. Cancer/Testis antigens are immunogenic proteins ectopically expressed in human neoplasms. Synaptonemal complex protein 3 (SYCP3) belongs to cancer/testis genes family involved in meiotic events and spermatogenesis. The aim of this study was to express analysis of SYCP3 in breast cancer and validate it as a breast cancer biomarker. METHODS: Expression of SYCP3 transcripts in 47 breast tumors, 6 breast cancer cell lines (MCF7, SKBR3, T47D, BT474, MDA-MB-231 and MDA-MB 468), 5 normal breast and 2 testis tissues was studied by Real Time RT-PCR reaction...
December 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28053034/simultaneous-loss-of-nckx4-and-cng-channel-desensitization-impairs-olfactory-sensitivity
#15
Christopher H Ferguson, Haiqing Zhao
: In vertebrate olfactory sensory neurons (OSNs), Ca(2+) plays key roles in both mediating and regulating the olfactory response. Ca(2+) enters OSN cilia during the response through the olfactory cyclic nucleotide-gated (CNG) channel and stimulates a depolarizing chloride current by opening the olfactory Ca(2+)-activated chloride channel to amplify the response. Ca(2+) also exerts negative regulation on the olfactory transduction cascade, through mechanisms that include reducing the CNG current by desensitizing the CNG channel via Ca(2+)/calmodulin (CaM), to reduce the response...
January 4, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28050460/profile-of-amblyopia-in-school-going-5-15-years-children-at-state-level-referral-hospital-in-uttarakhand
#16
Manisha Gupta, Sudhir Kumar Rana, Sanjiv Kumar Mittal, R N P Sinha
INTRODUCTION: Amblyopia is one of the common causes of childhood visual impairment. The prevalence of amblyopia usually varies according to the age group of the studied population and the factors prevailing in that region. The upper limit of the critical time when amblyopia can develop is around eight years of age and it can be permanent if corrective measures are not taken in time. AIM: The purpose of study was to know the profile and pattern of amblyopia in children aged 5-15 years with refractive error in Uttarakhand and to compare it with national and regional (South Asian) studies...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28048928/we-fg-206-02-brief-variations-of-bold-signal-in-resting-state-fmri-leading-to-functional-connectivity-pattern-identification
#17
N Ball, N Chen
PURPOSE: To assess the role of spontaneous brain activity in identifying functional connectivity patterns in the brain during resting-state using both high and low blood-oxygen level dependent (BOLD) signals from functional magnetic resonance imaging (fMRI). METHODS: fMRI BOLD signals within seed regions from known functional connectivity networks were extracted to find an average seed-region time profile. A threshold was applied to the BOLD signal and and time points were selected where the BOLD signal satisfied the threshold requirements...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048120/su-f-t-29-the-important-of-each-fraction-image-guided-planning-for-postoperative-hdr-brachytherapy-in-endometrial-carcinoma
#18
D Piriyasang, P Pattaranutaporn, K Manokhoon
PURPOSE: Cylindrical applicators are often used for postoperative HDRbrachytherapy in endometrial carcinoma. It has been considered that dosimetric variation between fractions for this treatment is minimal and might not be necessary to perform treatment planning for every fractions. At our institute, it is traditional to perform treatment planning with CT simulation on the first fraction and uses this plan for the rest of treatment. This study was aim to evaluate the errors of critical structure doses between the fractions when simulation and planning were done for first fraction only...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046756/su-f-j-58-evaluation-of-raystation-hybrid-deformable-image-registration-for-accurate-contour-propagation-in-adaptive-planning
#19
Y Rong, S Rao, M Daly, C Wright, S Benedict, T Yamamoto
PURPOSE: Adaptive radiotherapy requires complete new sets of regions of interests (ROIs) delineation on the mid-treatment CT images. This work aims at evaluating the accuracy of the RayStation hybrid deformable image registration (DIR) algorithm for its overall integrity and accuracy in contour propagation for adaptive planning. METHODS: The hybrid DIR is based on the combination of intensity-based algorithm and anatomical information provided by contours. Patients who received mid-treatment CT scans were identified for the study, including six lung patients (two mid-treatment CTs) and six head-and-neck (HN) patients (one mid-treatment CT)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046491/su-c-brb-02-automatic-planning-as-a-potential-strategy-for-dose-escalation-for-pancreas-sbrt
#20
S Wang, D Zheng, R Ma, C Lin, X Zhu, Y Lei, C Enke, S Zhou
PURPOSE: Stereotactic body radiation therapy (SBRT) has been suggested to provide high rates of local control for locally advanced pancreatic cancer. However, the close proximity of highly radiosensitive normal tissues usually causes the labor-intensive planning process, and may impede further escalation of the prescription dose. The present study evaluates the potential of an automatic planning system as a dose escalation strategy. METHODS: Ten pancreatic cancer patients treated with SBRT were studied retrospectively...
June 2016: Medical Physics
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