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https://www.readbyqxmd.com/read/28092830/trpv1-antagonism-by-piperazinyl-aryl-compounds-a-topomer-comfa-study-and-its-use-in-virtual-screening-for-identification-of-novel-antagonists
#1
Rajendra Kristam, Shashidhar N Rao, Anne Sudha D'Cruz, Vijayalakshmi Mahadevan, Vellarkad N Viswanadhan
Transient Receptor Potential Vanilloid, member 1 (TRPV1), is a non-selective cation channel belonging to the transient receptor potential (TRP) family of ion channels. It occurs in the peripheral and central nervous system, activated by a variety of exogenous and endogenous stimuli, thus playing a key role in transmission of pain. This has been a target for chronic pain since more than a decade and a number of antagonists that progressed into clinical trials have failed due to the unexpected side effect of core body temperature rise, thus halting progress in this field...
January 7, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28092675/unbalancing-p53-mdm2-igf-1r-axis-by-mdm2-activation-restrains-the-igf-1-dependent-invasive-phenotype-of-skin-melanoma
#2
C Worrall, N Suleymanova, C Crudden, I Trocoli Drakensjö, E Candrea, D Nedelcu, S-I Takahashi, L Girnita, A Girnita
Melanoma tumors usually retain wild-type p53; however, its tumor-suppressor activity is functionally disabled, most commonly through an inactivating interaction with mouse double-minute 2 homolog (Mdm2), indicating p53 release from this complex as a potential therapeutic approach. P53 and the tumor-promoter insulin-like growth factor type 1 receptor (IGF-1R) compete as substrates for the E3 ubiquitin ligase Mdm2, making their relative abundance intricately linked. Hence we investigated the effects of pharmacological Mdm2 release from the Mdm2/p53 complex on the expression and function of the IGF-1R...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28092419/improving-access-to-health-care-for-chronic-hepatitis-b-among-migrant-chinese-populations-a-systematic-mixed-methods-review-of-barriers-and-enablers
#3
Alicia Vedio, Eva Zhi Hong Liu, Andrew Ck Lee, Sarah Salway
Migrant Chinese populations in Western countries have a high prevalence of chronic hepatitis B but often experience poor access to healthcare and late diagnosis. This systematic review aimed to identify obstacles and supports to timely and appropriate health service use among these populations. Systematic searches resulted in 48 relevant studies published between 1996 and 2015. Data extraction and synthesis were informed by models of healthcare access that highlight the interplay of patient, provider and health system factors...
January 16, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28092131/finish-line-plant-insect-interactions-mediated-by-insect-feeding-mode-and-plant-interference-a-case-study-of-brassica-interactions-with-diamondback-moth-and-turnip-aphid
#4
Mahmoud Soufbaf, Yaghoub Fathipour, Jeffrey A Harvey, Cang Hui
There are gaps in our understanding of plant responses under different insect phytophagy modes and their subsequent effects on the insect herbivores' performance at late season. Here we compared different types of insect feeding by an aphid, Lipaphis erysimi, and a lepidopteran, Plutella xylostella, and how this affected defensive metabolites in leaves of two Brassica species when plants gain maturity. Thiocyanate concentrations after P. xylostella and L. erysimi feeding activities were the same. Total phenolics was higher after the phloem feeder feeding than the folivore activity...
January 16, 2017: Insect Science
https://www.readbyqxmd.com/read/28092086/anxiety-related-behaviours-associated-with-microrna-206-3p-and-bdnf-expression-in-pregnant-female-mice-following-psychological-social-stress
#5
Zhuang Miao, Fengbiao Mao, Jialong Liang, Moshe Szyf, Yan Wang, Zhong Sheng Sun
Stress during pregnancy can induce various psychological disorders in women. However, the association linking psychological stress during pregnancy with abnormal behaviours in females remains largely unknown. We employed a novel psychological stress model by introducing pregnant mice to witness the defeat process of their mated partner (WDPMP) and examined the effects of WDPMP on depression-/anxiety-like behaviours and on the expression of brain-derived neurotrophic factor (BDNF) and miR-206-3p in the hippocampus, medial prefrontal cortex (mPFC) and amygdala...
January 14, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28091908/effect-of-tramadol-on-rabbit-uterine-contractile-activity-induced-in-late-pregnancy
#6
A A Yakovleva, L A Nazarova, V M Prokopenko, N G Pavlova
Effect of Tramadol infusion (5 mg/ml) on oxytocin-induced uterine contractile activity was studied in chronic experiment on female rabbits with different degrees of biological readiness for parturition. In case of sufficient biological readiness for parturition, Tramadol did not change the number of uterine contractions, but increased the amplitude and duration of each contraction against the background of increased creatine phosphate consumption by the myometrium. At the same time, Tramadol infusion to females without biological readiness for partirition suppressed induced uterine contractile activity by reducing the amplitude of each uterine contraction...
January 14, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28091872/impact-of-revascularization-of-coronary-chronic-total-occlusion-on-left-ventricular-function-and-electrical-stability-analysis-by-speckle-tracking-echocardiography-and-signal-averaged-electrocardiogram
#7
Yohei Sotomi, Atsunori Okamura, Katsuomi Iwakura, Motoo Date, Hiroyuki Nagai, Tomohiro Yamasaki, Yasushi Koyama, Koichi Inoue, Yasushi Sakata, Kenshi Fujii
The present study aimed to assess the mechanisms of effects of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) from two different aspects: left ventricular (LV) systolic function assessed by two-dimensional speckle tracking echocardiography (2D-STE) and electrical stability evaluated by late potential on signal-averaged electrocardiogram (SAECG). We conducted a prospective observational study with consecutive CTO-PCI patients. 2D-STE and SAECG were performed before PCI, and after 1-day and 3-months of procedure...
January 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28091815/quantitative-validation-of-sensory-mapping-in-persistent-postherniorrhaphy-inguinal-pain-patients-undergoing-triple-neurectomy
#8
M F Bjurström, R Álvarez, A L Nicol, R Olmstead, P K Amid, D C Chen
PURPOSE: Neurectomy of the inguinal nerves may be considered for selected refractory cases of chronic postherniorrhaphy inguinal pain (CPIP). There is to date a paucity of easily applicable clinical tools to identify neuropathic pain and examine the neurosensory effects of remedial surgery. The present quantitative sensory testing (QST) pilot study evaluates a sensory mapping technique. METHODS: Longitudinal (preoperative, immediate postoperative, and late postoperative) dermatomal sensory mapping and a comprehensive QST protocol were conducted in CPIP patients with unilateral, predominantly neuropathic inguinodynia presenting for triple neurectomy (n = 13)...
January 13, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28091779/early-and-late-outcomes-after-surgical-management-of-congenital-vascular-rings
#9
Katrien François, Joseph Panzer, Katya De Groote, Kristof Vandekerckhove, Daniel De Wolf, Hans De Wilde, Fabienne Marchau, Wim De Caluwe, Abraham Benatar, Thierry Bové
: Persistent respiratory or feeding problems in children may be associated with a congenital vascular ring. Surgical management is fairly standardized, but long-term outcomes are not well described. This study aims to investigate clinical presentation, surgical treatment, and risk factors for early mortality and late outcome. Our database revealed 62 surgically treated vascular ring patients between 1993 and 2014. Double aortic arch was the most common diagnosis (53%). Median age at operation was 1 year...
January 13, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28090638/late-gestational-intermittent-hypoxia-induces-metabolic-and-epigenetic-changes-in-male-adult-offspring-mice
#10
Abdelnaby Khalyfa, Rene Cortese, Zhuanhong Qiao, Honggang Ye, Riyue Bao, Jorge Andrade, David Gozal
Pregnancy, particularly late gestation, has been associated with a relatively high prevalence of obstructive sleep apnea (OSA). Intermittent hypoxia (IH), a hallmark of OSA, could impose significant long-term effects on somatic growth, energy homeostasis, and metabolic function in offspring. We hypothesized that IH during late pregnancy (LG-IH) may increase the propensity for metabolic dysregulation and obesity in adult offspring via epigenetic modifications. Time-pregnant female C57BL/6 mice were exposed to LG-IH or room air (LG-RA) during days 13-18 of gestation...
January 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28089771/extended-therapeutic-window-for-post-exposure-treatment-of-ricin-intoxication-conferred-by-the-use-of-high-affinity-antibodies
#11
Tal Noy-Porat, Ron Alcalay, Eyal Epstein, Tamar Sabo, Chanoch Kronman, Ohad Mazor
The plant toxin ricin is considered a potential bioterror agent against which there is no available antidote. To date, neutralizing antibodies are the most promising post-exposure treatment for ricin intoxication, yet so far they were shown to be effective only when given within several hours post exposure. As part of an ongoing effort to develop efficient ricin-countermeasures, we tested whether high-affinity antibodies that were previously isolated from immunized non-human primates, may confer effective post-exposure therapy for ricin-intoxicated mice treated at late time-points after exposure...
January 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28089697/effects-of-mild-cognitive-impairment-on-emotional-scene-memory
#12
J D Waring, H R Dimsdale-Zucker, S Flannery, A E Budson, E A Kensinger
Young and older adults experience benefits in attention and memory for emotional compared to neutral information, but this memory benefit is greatly diminished in Alzheimer's disease (AD). Little is known about whether this impairment arises early or late in the time course between healthy aging and AD. This study compared memory for positive, negative, and neutral items with neutral backgrounds between patients with mild cognitive impairment (MCI) and healthy older adults. We also used a divided attention condition in older adults as a possible model for the deficits observed in MCI patients...
January 12, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28089694/affective-and-cognitive-correlates-of-ptsd-electrocortical-processing-of-threat-and-perseverative-errors-on-the-wcst-in-combat-related-ptsd
#13
Julia A DiGangi, Autumn Kujawa, Darrin M Aase, Joseph M Babione, Christopher Schroth, David M Levy, Amy E Kennedy, Justin E Greenstein, Eric Proescher, Robert Walters, Holly Passi, Scott A Langenecker, K Luan Phan
PTSD is characterized by both affective and cognitive dysfunction. Affectively, PTSD is associated with both heightened emotional reactivity and disengagement. Cognitively, perseverative thinking is a core feature of the disorder. In order to assess the interactive effects of affective and cognitive correlates of PTSD symptoms, 47 OEF/OIF/OND veterans completed an emotional faces matching task while EEG (i.e., late positive potential; LPP) was recorded, and separately completed the Wisconsin Card Sorting Test (WCST) to assess perseverative errors...
January 12, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28089665/dissociation-of-morphine-analgesic-effects-in-the-sensory-and-affective-components-of-formalin-induced-spontaneous-pain-in-male-and-female-rats
#14
Lisa R Harton, Janell R Richardson, Alexander Armendariz, Arbi Nazarian
Sex differences in the analgesic effects of morphine have been previously reported in various models that represent the sensory component of pain. However, pain sensation is a complex process that consists of both sensory and affective components. It is presently unclear whether the analgesic effects of morphine between the sensory and affective components of pain are sexually dimorphic. Moreover, differences in morphine dose-response in the two components of pain have not been examined in male and female rats...
January 12, 2017: Brain Research
https://www.readbyqxmd.com/read/28089368/the-transition-from-pediatric-to-adult-care-for-youth-with-epilepsy-basic-biological-sociological-and-psychological-issues
#15
REVIEW
Peter Camfield, Carol Camfield, Kanetee Busiah, David Cohen, Alison Pack, Rima Nabbout
Transition from pediatric to adult health care for adolescents with epilepsy is challenging for the patient, family, and health care workers. This paper is the first of three that summarize the main findings from the 2nd Symposium on Transition in Epilepsies, held in Paris from June 14-25, 2016. In this paper we describe five basic themes that have an important effect on transition. First, there are important brain changes in adolescence that leave an imbalance between risk taking and pleasure seeking behaviors and frontal executive function compared with adults...
January 12, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28089365/gastric-bleeding-risk-following-spleen-preserving-distal-pancreatectomy-with-excision-of-the-splenic-vessels-a%C3%A2-long-term-follow-up
#16
D Louis, A Alassiri, S Kirzin, S Blaye-Felice, M Chalret du Rieu, C H Julio, E Bloom, L Ghouti, B Pradère, G Portier, N Carrère
BACKGROUND: Spleen-preserving distal pancreatectomy with resection of the splenic vessels (VR-SPDP) is an effective procedure. However, hemodynamic changes in splenogastric circulation may lead to the development of gastric varices (GV) with a risk of gastrointestinal (GI) bleeding. This retrospective study aimed to assess the long-term postoperative clinical follow-up of patients and review the late postoperative abdominal computed tomography (CT) or endoscopic examination. METHODS: From 1988 to 2015, 48 consecutive VR-SPDP for benign or low-grade malignant disease were included...
January 12, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28089153/temporal-trends-in-management-and-outcomes-of-patients-with-acute-coronary-syndrome-according-to-renal-function
#17
Mony Shuvy, Shmuel Chen, Dina Vorobeichik, Eilon Krashin, Nir Shlomo, Ilan Goldenberg, David Pereg
INTRODUCTION: Recent new therapeutic options have improved outcomes of acute coronary syndrome (ACS) patients. However, data regarding the incremental effect of the improved treatment on patients with renal dysfunction are limited. We sought to evaluate temporal trends in management and outcome of ACS patients according to renal function. METHODS: The study population consisted of all ACS patients enrolled in the Acute Coronary Syndromes Israeli Survey (ACSIS) during 2002-2013...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28088659/altered-cerebral-insulin-response-in-transgenic-mice-expressing-the-epsilon-4-allele-of-the-human-apolipoprotein-e-gene
#18
Marie-Thérèse Traversy, Milène Vandal, Cyntia Tremblay, Marine Tournissac, Ariane Giguère-Rancourt, A David Bennett, Frédéric Calon
Apolipoprotein E epsilon-4 (APOEε4 or APOE4), an allelic variation of the APOE gene, not only increases the risk of developing the late-onset form of Alzheimer's disease (AD), but also influences the outcome of treatment. Indeed, data from clinical studies show that the beneficial effect of insulin on cognition is blunted in APOE4 carriers. To investigate how APOE impacts insulin response, we assessed the effects of an acute insulin injection in APOE3- and APOE4-targeted replacement mice that respectively express the human APOE3 or APOE4 isoform instead of the endogenous murine ApoE protein...
November 30, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28088501/a-review-of-reproductive-and-developmental-toxicity-of-silver-nanoparticles-in-laboratory-animals
#19
REVIEW
Makoto Ema, Hirokazu Okuda, Masashi Gamo, Kazumasa Honda
We summarized significant effects reported in the literature on the reproductive and developmental toxicity of silver nanoparticles (AgNPs) in laboratory animals. AgNPs showed testicular/sperm toxicity in males and ovarian and embryonic toxicity in females. Maternal injection of AgNPs delayed physical development and impaired cognitive behavior in offspring. Ag was accumulated in the testes after administration of AgNPs. AgNPs were identified in the visceral yolk sac after administration during early gestation in mice...
January 11, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28088493/apoptosis-induced-by-the-methanol-extract-of-salvia-miltiorrhiza-bunge-in-non-small-cell-lung-cancer-through-pten-mediated-inhibition-of-pi3k-akt-pathway
#20
Yin-Tao Ye, Wei Zhong, Pei Sun, Dong Wang, Chen Wang, Li-Min Hu, Jun-Qiang Qian
ETHNOPHARMACOLOGICAL RELEVANCE: Salvia miltiorrhiza Bunge, a well-known traditional Chinese medicinal (TCM) plant, has been used to treat cardiovascular diseases since thousands of years. Many studies have reported that the active component tanshinones displayed a variety of biological activities: antithrombous, antiplatelet aggregation, antioxidant and antitumor promoting. But the mechanism of how the active components working still need to be clarified. The anti-tumor effect of compounds of tanshinone (CTN), the methanol extract of Salvia miltiorrhiza Bunge roots, was investigated...
January 11, 2017: Journal of Ethnopharmacology
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