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https://www.readbyqxmd.com/read/28230863/oncogenic-role-of-rab-escort-protein-1-through-egfr-and-stat3-pathway
#1
Un-Jung Yun, Jee Young Sung, Seog-Yun Park, Sang-Kyu Ye, Jaegal Shim, Jae-Seon Lee, Masahiko Hibi, Young-Ki Bae, Yong-Nyun Kim
Rab escort protein-1 (REP1) is linked to choroideremia (CHM), an X-linked degenerative disorder caused by mutations of the gene encoding REP1 (CHM). REP1 mutant zebrafish showed excessive cell death throughout the body, including the eyes, indicating that REP1 is critical for cell survival, a hallmark of cancer. In the present study, we found that REP1 is overexpressed in human tumor tissues from cervical, lung, and colorectal cancer patients, whereas it is expressed at relatively low levels in the normal tissue counterparts...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230232/carisbamate-blockade-of-t-type-voltage-gated-calcium-channels
#2
Do Young Kim, Fang-Xiong Zhang, Stan T Nakanishi, Timothy Mettler, Ik-Hyun Cho, Younghee Ahn, Florian Hiess, Lina Chen, Patrick G Sullivan, S R Wayne Chen, Gerald W Zamponi, Jong M Rho
OBJECTIVES: Carisbamate (CRS) is a novel monocarbamate compound that possesses antiseizure and neuroprotective properties. However, the mechanisms underlying these actions remain unclear. Here, we tested both direct and indirect effects of CRS on several cellular systems that regulate intracellular calcium concentration [Ca(2+) ]i . METHODS: We used a combination of cellular electrophysiologic techniques, as well as cell viability, Store Overload-Induced Calcium Release (SOICR), and mitochondrial functional assays to determine whether CRS might affect [Ca(2+) ]i levels through actions on the endoplasmic reticulum (ER), mitochondria, and/or T-type voltage-gated Ca(2+) channels...
February 23, 2017: Epilepsia
https://www.readbyqxmd.com/read/28229459/differential-serotonergic-modulation-across-the-main-and-accessory-olfactory-bulbs
#3
Zhenbo Huang, Nicolas Thiebaud, Debra Ann Fadool
Mitral cells (MCs) contained in the main (MOB) and accessory (AOB) olfactory bulb have distinct intrinsic membrane properties but a comparison of the extent of neuromodulation across the two systems is not well explored. Herein, we investigated a widely-distributed CNS modulator, serotonin (5-HT), for its ability to modulate the biophysical properties of MCs across the MOB and AOB, using an in vitro, brain slice approach in postnatal 15-30 day mice. In the MOB, 5-HT elicited three types of responses in 93% of 180 cells tested...
February 22, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28228307/comparative-study-of-cardiac-autonomic-status-by-heart-rate-variability-between-under-treatment-normotensive-and-hypertensive-known-type-2-diabetics
#4
Jayesh D Solanki, Sanket D Basida, Hemant B Mehta, Sunil J Panjwani, Bhakti P Gadhavi
BACKGROUND: Co-existence of hypertension is known in three quarter of Indian type 2 diabetics, this duo having adverse additive effect on cardiovascular health including dysautonomia. Latter can be measured by simple 5min heart rate variability (HRV) using simple electrocardiogram, which if reduced indicates cardiac risk. OBJECTIVE: We compared HRV parameters between hypertensive and normotensive type 2 diabetics, looking for significant difference if any. MATERIALS AND METHODS: 98 hypertensive and 40 normotensive type 2 diabetics treated as outpatients were evaluated for disease control and risk stratification...
January 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28227458/study-of-phase-estimation-methods-to-analyse-cardiorespiratory-synchronization-in-osa-patients
#5
Jordi Sola-Soler, Beatriz F Giraldo, Jose A Fiz, Raimon Jane, Jordi Sola-Soler, Beatriz F Giraldo, Jose A Fiz, Raimon Jane, Beatriz F Giraldo, Raimon Jane, Jose A Fiz, Jordi Sola-Soler
Obstructive Sleep Apnea (OSA) is a sleep disorder highly prevalent in the general population. Cardiorespiratory Phase Synchronization (CRPS) is a form of non-linear interaction between respiratory and cardiovascular systems that was found to be reduced in severe OSA patients. The Hilbert Transform (HT) method was the recommended choice for estimating the respiratory phase in CRPS studies. But we have noticed that HT provides a phase that is aligned to the transition between the exhalation and the inhalation parts of different breathing cycles, instead of being aligned to the breathing onsets...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227220/selection-of-an-optimal-feature-set-to-predict-heart-transplantation-outcomes
#6
Dennis Medved, Pierre Nugues, Johan Nilsson, Dennis Medved, Pierre Nugues, Johan Nilsson, Dennis Medved, Johan Nilsson, Pierre Nugues
Heart transplantation (HT) is a life saving procedure, but a limited donor supply forces the surgeons to prioritize the recipients. The understanding of factors that predict mortality could help the doctors with this task. The objective of this study is to find locally optimal feature sets to predict survival of HT patients for different time periods. To this end, we applied logistic regression together with a greedy forward and backward search. As data source, we used the United Network for Organ Sharing (UNOS) registry, where we extracted adult patients (>17 years) from January 1997 to December 2008...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226458/investigating-parylene-ht-as-a-substrate-for-human-cell-patterning
#7
Brad J Raos, E Scott Graham, Alan F Murray, M Cather Simpson, Charles P Unsworth, Brad J Raos, E Scott Graham, Alan F Murray, M Cather Simpson, Charles P Unsworth, Alan F Murray, Charles P Unsworth, Brad J Raos, E Scott Graham, M Cather Simpson
We demonstrate, for the first time, how parylene-HT on SiO2 substrates can be used as a human cell patterning platform. We demonstrate this platform with hNT astrocytes, derived from the human NTera2.D1 cell line. We show how hNT astrocytes are attracted to Parylene-HT and repelled by the SiO2 and are shown to adopt a similar morphology as that attained on standard tissue culture polystyrene. Furthermore, parylene-HT was capable of patterning the astrocytes achieving a ratio of 8:1 for cells on parylene compared to SiO2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225579/intravoxel-incoherent-motion-mri-assessment-of-chemoradiation-induced-pelvic-bone-marrow-changes-in-cervical-cancer-and-correlation-with-hematological-toxicity
#8
Elaine Yuen Phin Lee, Jose Angelo Udal Perucho, Vince Vardhanabhuti, Jian He, Steven Wai Kwan Siu, Siew Fei Ngu, Nina A Mayr, William T C Yuh, Queenie Chan, Pek-Lan Khong
PURPOSE: To investigate bone marrow changes after chemoradiation (CRT) using intravoxel incoherent motion magnetic resonance imaging (IVIM-MRI) and correlate imaging changes with hematological toxicity (HT) in patients with locally advanced cervical cancer. MATERIALS AND METHODS: Thirty-nine patients with newly diagnosed cervical cancer were prospectively recruited for two sequential 3.0T IVIM-MRI studies: before treatment (MRI-1) and 3-4 weeks after standardized CRT (MRI-2)...
February 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28225195/protective-effect-of-hydroxytyrosol-in-arsenic-induced-mitochondrial-dysfunction-in-rat-brain
#9
Manisha Soni, Chandra Prakash, Sfurti Sehwag, Vijay Kumar
The present study was planned to investigate the protective effect of hydroxytyrosol (HT) against arsenic (As)-induced mitochondrial dysfunction in rat brain. Rats exposed to sodium arsenite (25 ppm for 8 weeks) showed decreased mitochondrial complexes (I, II, IV) activities, mitochondrial superoxide dismutase (MnSOD), and catalase activities in brain mitochondria. As-treated rats showed reduced mRNA expression of complex I (ND-1, ND-2), IV (COX-1, COX-4) subunits, and uncoupling protein-2 (UCP-2). In addition to this, As exposure downregulated the protein expression of MnSOD...
February 22, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28222692/hashimoto-s-encephalitis-associated-with-ampar2-antibodies-a-case-report
#10
Mingqin Zhu, Xuefan Yu, Caiyun Liu, Chenchen Duan, Chunxiao Li, Jie Zhu, Ying Zhang
BACKGROUND: Hashimoto's encephalitis (HE) is a rare neurological complication of Hashimoto's thyroiditis (HT), while limbic encephalitis (LE) is an autoimmune inflammatory disorder frequently associated with anti-neuronal antibodies. The glutamate receptor α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor (AMPAR) is important for synaptic transmission, memory, and learning. The etiology of HE remains unclear. We present a case of HE with antibodies to AMPAR2 both in the serum and cerebrospinal fluid...
February 21, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28221840/inhibition-of-fusarium-growth-and-mycotoxin-production-in-culture-medium-and-in-maize-kernels-by-natural-phenolic-acids
#11
Elena Ferruz, Susana Loran, Marta Herrera, Isabel Gimenez, Noemi Bervis, Carmen Barcena, Juan Jose Carramiñana, Teresa Juan, Antonio Herrera, Agustin Ariño
The possible role of natural phenolic compounds in inhibiting fungal growth and toxin production has been of recent interest as an alternative strategy to the use of chemical fungicides for the maintenance of food safety. Fusarium is a worldwide fungal genus mainly associated with cereal crops. The most important Fusarium mycotoxins are trichothecenes, zearalenone, and fumonisins. This study was conducted to evaluate the potential of four natural phenolic acids (caffeic, ferulic, p-coumaric, and chlorogenic) for the control of mycelial growth and mycotoxin production by six toxigenic species of Fusarium ...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221365/glial-glt-1-blockade-in-infralimbic-cortex-as-a-new-strategy-to-evoke-rapid-antidepressant-like-effects-in-rats
#12
J Gasull-Camós, M Tarrés-Gatius, F Artigas, A Castañé
Ketamine and deep brain stimulation produce rapid antidepressant effects in humans and rodents. An increased AMPA receptor (AMPA-R) signaling in medial prefrontal cortex (mPFC) has been suggested to mediate these responses. However, little research has addressed the direct effects of enhancing glutamate tone or AMPA-R stimulation in mPFC subdivisions. The current study investigates the behavioral and neurochemical consequences of glutamate transporter-1 (GLT-1) blockade or s-AMPA microinfusion in the infralimbic (IL) and prelimbic (PrL) cortex...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28219678/nortriterpenoids-from-the-stems-and-leaves-of-schisandra-viridis
#13
Ye Liu, Tian Tian, Heng-Yi Yu, Ming Zhou, Han-Li Ruan
An extensive phytochemical study on the stems and leaves of Schisandra viridis A. C. Smith led to the isolation of two novel highly oxygenated schinortriterpenoids, pre-schisanartanin P (1) and wuweizidilactone Q (2), together with four known ones (3-6). Their structures with absolute configurations were established on the basis of comprehensive spectroscopic methods, including HRESIMS, 1D and 2D NMR analyses and ECD experiments. All isolates were evaluated for their in vitro cytotoxicities against HepG2, MCF-7 and HT-29 cancer cell lines, none of them showed significant activities...
February 17, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28219104/captopril-does-not-potentiate-post-exercise-hypotension-a-randomized-crossover-study
#14
Andréia Cristiane Carrenho Queiroz, Julio Cesar Silva Sousa, Natan Daniel Silva, Eleonora Tobaldini, Katia Coelho Ortega, Edilamar Menezes de Oliveira, Patricia Chakur Brum, Nicola Montano, Decio Mion, Taís Tinucci, Claudia Lucia de Moraes Forjaz
To evaluate whether captopril (3×50 mg/day) potentiates post-resistance exercise hypotension (PREH) in hypertensives (HT), 12 HT men received captopril and placebo for 4 weeks each in a double-blinded, randomized-crossover design. On each therapy, subjects underwent 2 sessions: Control (C - rest) and Resistance Exercise (RE - 7 exercises, 3 sets to moderate fatigue, 50% of 1 RM -repetition maximum). Measurements were taken before and after 30-60 min (Post1) and 7 h (Post2), and ambulatory blood pressure (BP) was monitored for 24 h...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28219024/is-tetraethyl-lead-poison-affecting-contemporary-indigenous-suicides-in-ontario-canada
#15
Trehani Mary Fonseka, Gerald P McKinley, Sidney H Kennedy
Prior to the mid-1980s, suicide in Indigenous population in Northwestern Ontario, Canada, was rare, occurring at rates of 1-2 per year among over 20 communities. By the early 1990s, the completed suicide rates in the same communities were among the highest in the world. Prior to the outbreak of the suicide epidemic, sniffing of gasoline containing tetraethyl was common in many communities. Existing literature confirms that tetraethyl lead poisoning is associated with alterations to the amyloid-β protein precursor and amyloid-β as well as the 5-HT-1B receptor...
January 7, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28218782/tumor-suppressive-role-of-kruppel-like-factor-4-klf-4-in-colorectal-cancer
#16
D H Xiu, Y Chen, L Liu, H S Yang, G F Liu
Kruppel-like factors (KLFs) are a group of transcriptional regulators that have recently been identified to exhibit tumor-suppressive function against various gastrointestinal cancers. The present study aims to investigate the expression patterns and prognostic value of KLF-4 in colorectal cancers (CRCs). KLF-4 levels in CRC tissues were examined via immunohistochemistry analysis, real-time quantitative polymerase chain reaction, and western blotting. The chi-square test was performed to evaluate the correlation between KLF-4 expression and the clinicopathological characteristics...
February 16, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28217937/evidence-for-the-association-of-hashimoto-s-thyroiditis-with-psoriasis-a-cross-sectional-retrospective-study
#17
Tina Kiguradze, Finola M Bruins, Nicholas Guido, Tanya Bhattacharya, Alfred Rademaker, Aleksandra G Florek, Alba Posligua, Shatil Amin, Anne E Laumann, Dennis P West, Beatrice Nardone
BACKGROUND: Current information indicates that psoriasis is a metabolic disorder with systemic manifestations. Reports have revealed an association between psoriasis and several chronic autoimmune disorders. For one of these disorders, Hashimoto's thyroiditis (HT), there are scarce, and relatively unconfirmed, reports of an association with psoriasis. We sought to determine if such an association is detectable in a large medical record data repository. METHODS: We searched one institution's electronic medical record data repository from January 2010 to December 2013...
February 19, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28217310/the-impact-of-gender-mismatching-on-early-and-late-outcomes-following-heart-transplantation
#18
Yael Peled, Jacob Lavee, Michael Arad, Yedida Shemesh, Moshe Katz, Yigal Kassif, Elad Asher, Dan Elian, Yedael Har-Zahav, Ilan Goldenberg, Dov Freimark
AIMS: The role of donor/recipient gender matching on the long-term rejection process and clinical outcomes following heart transplantation (HT) outcomes is still controversial. We aim to investigate the impact of gender matching on early and long-term outcome HT. METHODS AND RESULTS: The study population comprised 166 patients who underwent HT between 1991 and 2013 and were prospectively followed up in a tertiary referral centre. Early and late outcomes were assessed by the type of donor-recipient gender match (primary analysis: female donor-male recipient [FD-MR, n = 36] vs...
February 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28217292/oxygen-or-cooling-to-make-a-decision-after-acute-ischemia-stroke
#19
REVIEW
Wen-Cao Liu, Xin-Chun Jin
The presence of a salvageable penumbra, a region of ischemic brain tissue with sufficient energy for short-term survival, has been widely agreed as the premise for thrombolytic therapy with tissue plasminogen activator (tPA), which remains the only United States Food and Drug Administration (FDA) approved treatment for acute ischemia stroke. However, the use of tPA has been profoundly constrained due to its narrow therapeutic time window and the increased risk of potentially deadly hemorrhagic transformation (HT)...
October 2016: Medical Gas Research
https://www.readbyqxmd.com/read/28216416/in-silico-analysis-sheds-light-on-the-structural-basis-underlying-the-ribotoxicity-of-trichothecenes-a-tool-for-supporting-the-hazard-identification-process
#20
Luca Dellafiora, Gianni Galaverna, Chiara Dall'Asta
Deoxynivalenol is a foodborne mycotoxin belonging to the trichothecenes family that may cause severe injuries in human and animals. The inhibition of protein synthesis via the interaction with the ribosome has been identified as a crucial mechanism underlying toxic action. However, it is not still fully understood how and to what extent compounds belonging to trichothecenes family affect human and animal health. In turn, this scenario causes delay in managing the related health risk. Aimed at supporting the hazard identification process, the in silico analysis may be a straightforward tool to investigate the structure-activity relationship of trichothecenes, finding out molecules of possible concern to carry forth in the risk assessment process...
February 16, 2017: Toxicology Letters
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