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https://www.readbyqxmd.com/read/28821652/calpain-grip-signaling-in-nucleus-accumbens-core-mediates-the-reconsolidation-of-drug-reward-memory
#1
Jie Liang, Jia-Li Li, Ying Han, Yi-Xiao Luo, Yan-Xue Xue, Yàn Zhang, Yán Zhang, Li-Bo Zhang, Man-Li Chen, Lin Lu, Jie Shi
Exposure to drug-paired cues causes drug memories to be in a destabilized state, and interfering with memory reconsolidation can inhibit relapse. Calpain, a calcium-dependent neutral cysteine protease, is involved in synaptic plasticity and the formation of long-term fear memory. However, the role of calpain in the reconsolidation of drug reward memory is still unknown. In the present study, using conditioned place preference (CPP) model, we found that exposure to drug-paired contextual stimuli induced the activation of calpain and decreased the expression of glutamate receptor interacting protein 1 (GRIP1) in the nucleus accumbens (NAc) core but not shell of male rats...
August 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28819737/further-controversies-about-brain-tissue-oxygenation-pressure-reactivity-after-traumatic-brain-injury
#2
Morten Andresen, Joseph Donnelly, Marcel Aries, Marianne Juhler, David Menon, Pja Hutchinson, Peter Smielewski
BACKGROUND: Continuous monitoring of cerebral autoregulation is considered clinically useful due to its ability to warn against brain ischemic insults, which may translate to a relationship with adverse outcome. It is typically performed using the pressure reactivity index (PRx) based on mean arterial pressure and intracranial pressure. A new ORx index based on brain tissue oxygenation and cerebral perfusion pressure (CPP) has been proposed that similarly allows for evaluation of cerebrovascular reactivity...
August 17, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28819238/effects-of-environmental-enrichment-upon-ethanol-induced-conditioned-place-preference-and-pre-frontal-bdnf-levels-in-adolescent-and-adult-mice
#3
Ricardo Marcos Pautassi, Andrea B Suárez, Lucas Barbosa Hoffmann, André Veloso Rueda, Mariana Rae, Priscila Marianno, Rosana Camarini
Environmental enrichment (EE) provides a non-pharmacological tool to alter drug-induced reward, yet its effects on ethanol-induced reward remain controversial. We analyzed adolescent vs. adult (mice) differences in the influence of EE on ethanol-induced conditioned place preference (CPP). The effects of these treatments on brain-derived neurotrophic factor (BDNF) levels in the prefrontal cortex were examined in a separate group of animals. Ethanol-induced CPP was found in adults, and it was similar in EE and in animals reared under standard housing conditions (SC)...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818689/sol-gel-derived-hydroxyapatite-films-over-porous-calcium-polyphosphate-substrates-for-improved-tissue-engineering-of-osteochondral-like-constructs
#4
Whitaik David Lee, Rahul Gawri, Robert M Pilliar, William L Stanford, Rita A Kandel
Integration of in vitro-formed cartilage on a suitable substrate to form tissue-engineered implants for osteochondral defect repair is a considerable challenge. In healthy cartilage, a zone of calcified cartilage (ZCC) act as an intermediary for mechanical force transfer from soft to hard tissue, as well as an effective interlocking structure to better resist interfacial shear forces. We have developed biphasic constructs that consist of scaffold-free cartilage tissue grown in vitro on, and interdigitated with, porous calcium polyphosphate (CPP) substrates...
August 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28818227/impact-of-an-educational-program-on-the-quality-of-life-of%C3%A2-patients-with-lymphedema-a-preliminary-evaluation
#5
Sophie Blaise, Bernadette Satger, Gilles Pernod, Cécile Richaud, Béatrice Villemur, Patrick H Carpentier
OBJECTIVE: We report on the preliminary evaluation of a well-designed program, Living with Lymphedema. This longitudinal cohort study assessed patients' quality of life using questionnaires. Our main objective was to evaluate the satisfaction of the patients and their adherence to the program. This was done using a specific questionnaire of satisfaction as well as by noting patients' adherence to the program (number of patients attending all three consultations). The secondary objective was to assess the effect of the program on the patient's quality of life...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28815496/injection-based-delivery-of-cell-permeable-peptide-tagged-cre
#6
Wei-Ming Chien, Yonggang Liu, Ana A Dinca, Michael T Chin
The technique of Cre-mediated DNA recombination at loxP sites has been used widely in manipulation of the genome in cultured cells and in living organisms. Local delivery of Cre recombinase protein tagged with a cell-penetrating (or permeable) peptide (Cre-CPP) has the advantage of additional spatial and temporal control when compared to genetic delivery methods. In this chapter, we describe protocols for injection-based intramuscular delivery of Cre-CPP dissolved in hydrogel to skeletal muscle and by ultrasound-guided injection to cardiac muscle in mice...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28812408/calcium-pyrophosphate-deposition-disease-a-frequent-finding-in-patients-with-long-standing-erosive-gout
#7
B Ankli, D Kyburz, A Hirschmann, T Hügle, T Manigold, C T Berger, T Daikeler
OBJECTIVE: To characterize patients with both monosodium urate (MSU) and calcium pyrophosphate (CPP) crystals in their synovial fluid (SF). METHOD: Forty-nine gout patients with acute arthritis were included. Those patients with MSU crystals only in their SF were compared to those patients with both MSU and CPP crystals in their SF. RESULTS: A total of 36 out of 49 patients (73.5%) had only MSU crystals, whereas 13 out of 49 (26.5%) had both MSU and CPP crystals in their SF...
August 16, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28811779/effect-of-exercise-and-morphine-on-psychological-and-physical-dependencies-bdnf-and-trkb-gene-expression-in-rat-s-hippocampus
#8
Mojtaba Naghshvarian, Mohammad-Reza Zarrindast, Shahram Ejtemaei Mehr, Mohammad Mehdi Ommati, Seyedeh Fatemeh Sajjadi
OBJECTIVES: To compare the effect of exercise and morphine on abstinence syndrome and hippocampal gene expression in rat model. METHODS: Thirty adult male rats were exposed to voluntary wheel exercise (low, medium, high) for 28 days. The subjects entered Conditioned Place Preference (CPP) apparatus and experienced morphine (low, medium, high) CPP and followed by naloxone test. Correlation between exercise level, morphine injection, concurrent morphine administration and exercise with morphine CPP, BDNF and TrkB genes was determined...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28807680/patient-characteristics-and-cancer-prevalence-in-the-danish-cancer-patient-pathway-for-patients-with-serious-non-specific-symptoms-and-signs-of-cancer-a-nationwide-population-based-cohort-study
#9
E Moseholm, B Ø Lindhardt
BACKGROUND: A new cancer patient pathway for patients presenting with non-specific signs and symptoms (NSSC-CPP) was implemented nationally in Denmark in 2012. This study aims to describe, on a national level, the characteristics of patients referred to the Danish NSSC-CPP, and to estimate the prevalence and distribution of cancers and other diagnosis in this population. METHODS: A population-based cohort study using the Danish national registries, including all patients who completed a diagnostic course through the NSSC-CPP between 2012 and 2015...
August 11, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28805382/tuning-cycloparaphenylene-host-properties-by-chemical-modification
#10
Paolo Della Sala, Carmen Talotta, Tonino Caruso, Margherita De Rosa, Annunziata Soriente, Placido Neri, Carmine Gaeta
[8]Cycloparaphenylene derivative 1 has been synthesized and its recognition abilities toward pyridinium guests have been investigated and compared with the [8]CPP macrocycle. The results showed a fine tuning of the binding properties of [8]CPP 1 toward pyridinium cations due to the presence of 1,4-DMB ring. DFT calculations indicate that the close steric fitting between the rigid cavity of 1 and the pyridinium guest is the crucial factor for the stabilization of their supramolecular complex through C-H···π and N+···π1,4DMB interactions...
August 14, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28802578/purification-of-functional-reprogramming-factors-in-mammalian-cell-using-flag-tag
#11
Min-Joon Han, HaRam Kim, Carla O'Reilly, Chun-Hyung Kim
Induced pluripotent stem cells (iPSCs) technology is a method for generating pluripotent stem cells in vitro from fully differentiated cells such as fibroblast cells. The potential applications of iPSC technology in cell therapy and disease modeling could influence current medical practices. Despite current advances in iPSC technology, many patient-derived reprogrammed cells are not suitable for clinical trial because most protocols rely on virus-based techniques, which pose the risk of integration of the viral genome into the chromosomes...
August 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28798441/minimal-intervention-management-of-the-older-patient
#12
L J Walsh
With an aging population, dentists need to be aware of the risks which come to their elderly patients from retained teeth and exposed root surfaces. Oral health problems in the later years of life are multifactorial, with lifestyle, plaque and salivary factors remaining paramount. Root surface caries is likely to present a challenge in patients with a strong history of past coronal caries (and who have the attendant lifestyle risk factors) as well as in elderly patients who suddenly develop salivary hypofunction...
August 11, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28797598/differential-behavioral-effects-of-ethanol-pre-exposure-in-male-and-female-zebrafish-danio-rerio
#13
Carly L Clayman, Elizabeth J Malloy, David N Kearns, Victoria P Connaughton
Alcohol exposure in adolescence is a contributing factor toward reward-seeking behavior in adulthood. This reward-seeking behavior is assessed in animal models using the conditioned place preference (CPP) paradigm. In this study, ethanol-induced change in time spent by zebrafish on the initially non-preferred tank side was studied by conditioning adult zebrafish to ethanol dissolved in water (0.00% 1.00%; 1.25%; 1.50%; 1.60%; 1.75% vol/vol) paired with an initially non-preferred environment. Following a single conditioning cycle, fish swam unrestricted in the CPP chamber to assess changes in preference...
August 7, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28792942/hiv-1-neutralizing-antibody-induced-by-simian-adenovirus-and-poxvirus-mva-vectored-bg505-native-like-envelope-trimers
#14
Silvia Capucci, Edmund G Wee, Torben Schiffner, Celia C LaBranche, Nicola Borthwick, Albert Cupo, Jonathan Dodd, Hansi Dean, Quentin Sattentau, David Montefiori, Per J Klasse, Rogier W Sanders, John P Moore, Tomáš Hanke
Rabbits and monkeys immunized with HIV type 1 (HIV-1) native-like BG505 SOSIP.664 (BG505s) glycoprotein trimers are known to induce antibodies that can neutralize the autologous tier-2 virus. Here, we assessed the induction of HIV-1 trimer binding and neutralizing antibody (nAb) titres when BG505s trimers were also delivered by non-replicating simian (chimpanzee) adenovirus and non-replicating poxvirus modified vaccinia virus Ankara (MVA) vaccine vectors. First, we showed that approximately two-thirds and one-third of the trimers secreted from the ChAdOx1...
2017: PloS One
https://www.readbyqxmd.com/read/28791845/diagnosis-and-treatment-of-pelvic-congestion-syndrome-single-centre-experiences
#15
Tadeusz A Dorobisz, Jerzy S Garcarek, Jacek Kurcz, Krzysztof Korta, Andrzej T Dorobisz, Przemysław Podgórski, Jan Skóra, Piotr Szyber
BACKGROUND: One of the underestimated causes of chronic pelvic pain (CPP) in women may be pelvic congestion syndrome (PCS) that is defined as the presence of varicose of ovarian and pelvic veins associated with chronic pain in the region of the pelvis. This pain is present longer than 6 months and intensifies with prolonged standing, coitus and menstruation. The disease constitutes a diagnostic as well as therapeutic problem, thus posing a challenge for the clinician. Transcatheter ovarian vein embolization might be a safe and effective option for PCS treatment...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791047/central-precocious-puberty-and-response-to-gnrha-therapy-in-children-with-cerebral-palsy-and-moderate-to-severe-motor-impairment-data-from-a-longitudinal-case-control-multicentre-italian-study
#16
Patrizia Bruzzi, Maria Francesca Messina, Alessandra Bartoli, Barbara Predieri, Laura Lucaccioni, Simona Filomena Madeo, Alberto Verrotti, Filippo De Luca, Lorenzo Iughetti
BACKGROUND: Children affected by neurodevelopmental disability could experience early pubertal changes at least 20 times more than the general population. Limited data about central precocious puberty (CPP) among children affected by cerebral palsy (CP) are available. METHODS: This is a longitudinal, observational, retrospective, case-control study involving 22 children affected by CPP and CP (group A), 22 paired with CP but without CPP (group B), and 22 children with CPP without CP...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28790193/assessing-the-value-of-the-zebrafish-conditioned-place-preference-model-for-predicting-human-abuse-potential
#17
Alistair James Brock, Susan M G Goody, Andrew N Mead, Ari Sudwarts, Matthew O Parker, Caroline H Brennan
Regulatory agencies recommend that centrally-active drugs are tested for abuse potential prior to approval. Standard preclinical assessments are conducted in rats or non-human primates (NHPs). This study evaluated the ability of the zebrafish conditioned place preference (CPP) model to predict human abuse outcomes. Twenty-seven compounds from a variety of pharmacological classes were tested in zebrafish CPP, categorized as positive or negative, and analysed using standard diagnostic tests of binary classification to determine the likelihood that zebrafish correctly predict robust positive signals in human subjective effects studies (+HSE) and/or DEA drug scheduling...
August 8, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28783130/shear-bond-strength-and-remineralisation-effect-of-a-casein-phosphopeptide-amorphous-calcium-phosphate-modified-glass-ionomer-cement-on-artificial-caries-affected-dentine
#18
Irene Shuping Zhao, May Lei Mei, Zhuo Long Zhou, Michael Francis Burrow, Edward Chin-Man Lo, Chun-Hung Chu
This study investigated the effect of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP)-modified glass ionomer cement (GIC) on shear bond strength (SBS) and remineralisation of artificial "caries-affected" dentine. Human dentine slices were demineralised and allocated to three groups: group 1, conventional GIC; group 2, CPP-ACP-modified GIC; and group 3, resin-modified GIC. The SBS was measured using a universal testing machine (n = 16 per group). Remaining samples (n = 8 per group) were subjected to pH-cycling for 28 days...
August 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28782589/the-role-of-thioredoxin-1-in-resisting-methamphetamine-induced-rewarding-effect
#19
Mengbing Huang, Lingpin Kong, Lihua Yang, Xiang Li, Xiaoshuang Zhou, Ye Li, Jie Bai
Methamphetamine (METH) is a highly addictive drug of abuse which induces behavioral sensitization and rewarding effects. Thioredoxin-1 (Trx-1) is a redox protein and plays role in regulating activity of transcription factor, such as cAMP responsive element-binding protein (CREB), AP-1, p53, is emerging as an important modulator of neuronal function. It has been reported that Trx-1 is involved in morphine dependence. In this study, we examined the rewarding effect after METH administration by conditioned place preference (CPP) of mice, and detected the levels of dopamine and the activity of cAMP responsive element-binding protein (CREB), the expressions of ΔFosB and cyclin-dependent kinase 5 (CDK5) in the ventral tegmental area (VTA) and nucleus accumbens (NAc) in mice...
August 4, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28780734/intra-accumbal-cannabinoid-agonist-attenuated-reinstatement-but-not-extinction-period-of-morphine-induced-conditioned-place-preference-evidence-for-different-characteristics-of-extinction-period-and-reinstatement
#20
Hossein Khaleghzadeh-Ahangar, Abbas Haghparast
The brain reward system consists of the ventral tegmental area that sends its dopaminergic projections to the forebrain, cortical areas, amygdala and largely to the nucleus accumbens (NAc). The present study aims were to investigate the effects of bilateral intra-accumbal microinjection of WIN55,212-2, a CB1 receptor agonist, on the duration of extinction period and reinstatement to morphine by the conditioned place preference (CPP) paradigm in the rat. Forty-six adult male albino Wistar rats received intra-accumbal WIN55,212-2 [p0...
August 5, 2017: Neurochemical Research
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