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https://www.readbyqxmd.com/read/28723557/crystal-structure-of-the-human-ribosome-in-complex-with-denr-mct-1
#1
Ivan B Lomakin, Elena A Stolboushkina, Anand T Vaidya, Chenguang Zhao, Maria B Garber, Sergey E Dmitriev, Thomas A Steitz
The repertoire of the density-regulated protein (DENR) and the malignant T cell-amplified sequence 1 (MCT-1/MCTS1) oncoprotein was recently expanded to include translational control of a specific set of cancer-related mRNAs. DENR and MCT-1 form the heterodimer, which binds to the ribosome and operates at both translation initiation and reinitiation steps, though by a mechanism that is yet unclear. Here, we determined the crystal structure of the human small ribosomal subunit in complex with DENR-MCT-1. The structure reveals the location of the DENR-MCT-1 dimer bound to the small ribosomal subunit...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28711939/baicalin-attenuates-monocrotaline-induced-pulmonary-hypertension-through-bone-morphogenetic-protein-signaling-pathway
#2
Zhaohua Zhang, Luan Zhang, Chao Sun, Feng Kong, Jue Wang, Qian Xin, Wen Jiang, Kaili Li, Ou Chen, Yun Luan
Baicalin, a flavonoid compound extracted from roots of Scutellaria baicalensis Georgi (huang qin), it has been shown to effectively attenuates pulmonary hypertension (PH), however, the potential mechanism remains unexplored. In this study, we investigated the potential mechanism of baicalin on monocrotaline (MCT)-induced PH in rats. The results showed that baicalin attenuated lung damage in PH rat model through inhibiting the pulmonary arterial smooth muscle cell proliferation and induction of cells apoptosis...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28701655/preventive-effects-of-the-dietary-intake-of-medium-chain-triacylglycerols-on-immobilization-induced-muscle-atrophy-in-rats
#3
Shuhei Nishimura, Makoto Inai, Tetsuo Takagi, Yudai Nonaka, Shogo Urashima, Kazumitsu Honda, Toshiaki Aoyama, Shin Terada
Previous studies have shown that medium-chain triacylglycerols (MCTs) exert favorable effects on protein metabolism. This study evaluated the effects of the dietary intake of MCTs on rat skeletal muscle mass and total protein content during casting-induced hindlimb immobilization, which causes substantial protein degradation and muscle atrophy. Rats were fed a standard diet containing long-chain triacylglycerols (LCTs) or MCTs for 3 days and then a unilateral hindlimb was immobilized while they received the same diet...
July 12, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28700113/na-k-atpase-coupled-to-endothelin-receptor-type-b-stimulates-peripheral-nerve-regeneration-via-lactate-signaling
#4
Nguyen H Tu, Tayo Katano, Shinji Matsumura, Nobuo Funatsu, Vuong Minh Pham, Jun-Ichi Fujisawa, Seiji Ito
We have recently demonstrated that endothelin (ET) is functionally coupled to Nax , a Na(+) concentration-sensitive Na(+) channel for lactate release via ET receptor type B (ETB R) and is involved in peripheral nerve regeneration in a sciatic nerve transection-regeneration mouse model. Nax is known to interact directly with Na(+) /K(+) -ATPase, leading to lactate production in the brain. To investigate the role of Na(+) /K(+) -ATPase in peripheral nerve regeneration, in the present study we applied ouabain, a Na(+) /K(+) -ATPase inhibitor, to the cut site for 4 weeks with an osmotic pump...
July 12, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28689741/coconut-oil-has-less-satiating-properties-than-medium-chain-triglyceride-oil
#5
R Kinsella, T Maher, M E Clegg
It is well established that the consumption of medium-chain triglycerides (MCT) can increase satiety and reduce food intake. Many media articles promote the use of coconut oil for weight loss advocating similar health benefits to that of MCT. The aim of this study was to examine the effect of MCT oil compared to coconut oil and control oil on food intake and satiety. Following an overnight fast, participants consumed a test breakfast smoothie containing 205kcal of either (i) MCT oil (ii) coconut oil or (iii) vegetable oil (control) on three separate test days...
July 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28689265/aerobic-glycolysis-hypothesis-through-wnt-beta-catenin-pathway-in-exudative-age-related-macular-degeneration
#6
REVIEW
Alexandre Vallée, Yves Lecarpentier, Rémy Guillevin, Jean-Noël Vallée
Exudative age-related macular degeneration (AMD) is characterized by molecular mechanisms responsible for the initiation of choroidal neovascularization (CNV). Inflammatory processes are associated with upregulation of the canonical WNT/beta-catenin pathway in exudative AMD. We focus this review on the link between WNT/beta-catenin pathway activation and neovascular progression in exudative AMD through activation of aerobic glycolysis for production of angiogenic factors. Increased WNT/beta-catenin pathway involves hexokinase 2 (HK2) and pyruvate kinase M2 (PKM2)...
July 8, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28687765/reduction-of-epileptiform-activity-in-ketogenic-mice-the-role-of-monocarboxylate-transporters
#7
Linda S Forero-Quintero, Joachim W Deitmer, Holger M Becker
Epilepsy is a chronic neurological disorder that affects approximately 50 million people worldwide. Ketogenic diet (KD) can be a very effective treatment for intractable epilepsy. Potential mechanisms of action for KD have been proposed, including the re-balance among excitatory and inhibitory neurotransmission and decrease in the glycolytic rate in brain cells. KD has been shown to have an effect on the expression pattern of monocarboxylate transporters (MCT), however, it is unknown whether MCT transport activity is affected by KD and linked to the reduction of seizures during KD...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28682459/neuronal-decanoic-acid-oxidation-is-markedly-lower-than-that-of-octanoic-acid-a-mechanistic-insight-into-the-medium-chain-triglyceride-ketogenic-diet
#8
Aziza Khabbush, Michael Orford, Yi-Chen Tsai, Tricia Rutherford, Maura O'Donnell, Simon Eaton, Simon J R Heales
OBJECTIVE: The medium-chain triglyceride (MCT) ketogenic diet contains both octanoic (C8) and decanoic (C10) acids. The diet is an effective treatment for pharmacoresistant epilepsy. Although the exact mechanism for its efficacy is not known, it is emerging that C10, but not C8, interacts with targets that can explain antiseizure effects, for example, peroxisome proliferator-activated receptor-γ (eliciting mitochondrial biogenesis and increased antioxidant status) and the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor...
July 6, 2017: Epilepsia
https://www.readbyqxmd.com/read/28677726/osthole-attenuates-pulmonary-arterial-hypertension-in-monocrotaline%C3%A2-treated-rats
#9
Yeli Li, Yingwan Wang, Yiqi Li, Zhiqiang Qian, Ling Zhu, Danli Yang
Pulmonary arterial hypertension (PAH) is an insidious and progressive disease that is triggered by various cardiopulmonary diseases. Inflammation has an important role in the progression of PAH. Osthole (Ost) is a coumarin that has clear anti‑inflammatory properties. The present study aimed to investigate the effects of Ost on PAH, and to explore the mechanism underlying this effect. Using the monocrotaline (MCT)‑induced PAH rat model, the effects of Ost on PAH were investigated. Rats were subcutaneously administered a single dose of MCT (50 mg/kg) to establish the PAH model, followed by daily treatment with Ost (10 or 20 mg/kg) by gavage for 28 days...
June 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28677661/a-novel-therapeutic-approach-in-the-treatment-of-pulmonary-arterial-hypertension-allium-ursinum-liophylisate-alleviates-symptoms-comparably-to-sildenafil
#10
Mariann Bombicz, Daniel Priksz, Balazs Varga, Andrea Kurucz, Attila Kertész, Akos Takacs, Aniko Posa, Rita Kiss, Zoltan Szilvassy, Bela Juhasz
Right-sided heart failure-often caused by elevated pulmonary arterial pressure-is a chronic and progressive condition with particularly high mortality rates. Recent studies and our current findings suggest that components of Wild garlic (Allium ursinum, AU) may play a role in reducing blood pressure, inhibiting angiotensin-converting enzyme (ACE), as well as improving right ventricle function in rabbit models with heart failure. We hypothesize that AU may mitigate cardiovascular damage caused by pulmonary arterial hypertension (PAH) and has value in the supplementary treatment of the complications of the disease...
July 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28668041/analysis-of-shear-viscosity-and-viscoelastic-relaxation-of-liquid-methanol-based-on-molecular-dynamics-simulation-and-mode-coupling-theory
#11
Tsuyoshi Yamaguchi, Antonio Faraone
The role of the prepeak structure of liquid methanol in determining its shear viscosity was studied by means of molecular dynamics (MD) simulation and mode-coupling theory (MCT). The autocorrelation function of the shear stress and the intermediate scattering functions at both the prepeak and the main peak were calculated from the MD trajectories. Their comparison based on MCT suggests that the viscoelastic relaxation in the ps regime is affected by the slow structural dynamics at the prepeak. On the other hand, the MCT for molecular liquids based on the interaction-site model (site-site MCT) fails to describe the coupling between the prepeak dynamics and shear stress...
June 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28662343/effect-of-chronic-%C3%AE-hydroxybutyrate-ghb-administration-on-ghb-toxicokinetics-and-ghb-induced-respiratory-depression
#12
Bridget L Morse, Gurkishan S Chadha, Melanie A Felmlee, Kristin E Follman, Marilyn E Morris
BACKGROUND: γ-hydroxybutyrate (GHB) has a high potential for illicit use; overdose of this compound results in sedation, respiratory depression and death. Tolerance to the hypnotic/sedative and electroencephalogram effects of GHB occurs with chronic GHB administration; however, tolerance to respiratory depression has not been evaluated. GHB toxicodynamic effects are mediated predominantly by GABAB receptors. Chronic treatment may affect monocarboxylate transporters (MCTs) and alter the absorption, renal clearance and brain uptake of GHB...
June 29, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28660224/edge-artifacts-in-point-spread-function-based-pet-reconstruction-in-relation-to-object-size-and-reconstruction-parameters
#13
Yuji Tsutsui, Shinichi Awamoto, Kazuhiko Himuro, Yoshiyuki Umezu, Shingo Baba, Masayuki Sasaki
OBJECTIVES: We evaluated edge artifacts in relation to phantom diameter and reconstruction parameters in point spread function (PSF)-based positron emission tomography (PET) image reconstruction. METHODS: PET data were acquired from an original cone-shaped phantom filled with (18)F solution (21.9 kBq/mL) for 10 min using a Biograph mCT scanner. The images were reconstructed using the baseline ordered subsets expectation maximization (OSEM) algorithm and the OSEM with PSF correction model...
2017: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/28657230/malignant-transformation-of-ovarian-mature-cystic-teratoma-into-squamous-cell-carcinoma-a-taiwanese-gynecologic-oncology-group-tgog-study
#14
An Jen Chiang, Min Yu Chen, Chia Sui Weng, Hao Lin, Chien Hsing Lu, Peng Hui Wang, Yu Fang Huang, Ying Cheng Chiang, Mu Hsien Yu, Chih Long Chang
OBJECTIVE: The malignant transformation (MT) of ovarian mature cystic teratoma (MCT) to squamous cell carcinoma (SCC) is very rare. This study analyzed cases from multiple medical centers in Taiwan to investigate the clinicopathologic characteristics, treatment, and prognostic factors of this disease and reviewed related literature. METHODS: Pathological reports of 16,001 patients with primary ovarian cancer who were treated at Taiwan medical centers from 1990 to 2011 were reviewed...
June 13, 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28656469/optimizing-vap-scars-after-childhood-cancer-treatment-a-pilot-study
#15
C M A de Bruijn, F W Hoff, M M Bruggeman-Westermann, J B Terra, T H van Dijk, E S J M de Bont, A M L Peek
PURPOSE: Majority of pediatric cancer patients are treated with chemotherapy using Venous Access Ports (VAP). However, after surgical removal of the VAP prominent scars often remain and standard care is lacking. METHODS: Patients (N = 20) who were willing to participate were included prior to surgical removal of their VAP. All patients were off therapy at time of VAP removal. Patients had the option to either choose from Dermatix®, meridian color therapy (MCT), or no additional treatment (NAT)...
June 28, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28655889/disruption-of-the-monocarboxylate-transporter-4-basigin-interaction-inhibits-the-hypoxic-response-proliferation-and-tumor-progression
#16
Dillon M Voss, Raffaella Spina, David L Carter, Kah Suan Lim, Constance J Jeffery, Eli E Bar
We have previously shown that glioblastoma stem cells (GSCs) are enriched in the hypoxic tumor microenvironment, and that monocarboxylate transporter-4 (MCT4) is critical for mediating GSC signaling in hypoxia. Basigin is involved in many physiological functions during early stages of development and in cancer and is required for functional plasma membrane expression of MCT4. We sought to determine if disruption of the MCT-Basigin interaction may be achieved with a small molecule. Using a cell-based drug-screening assay, we identified Acriflavine (ACF), a small molecule that inhibits the binding between Basigin and MCT4...
June 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28652538/the-role-of-acylated-ghrelin-in-the-regulation-of-sucrose-intake
#17
Tetsuya Kouno, Nobuteru Akiyama, Takahito Ito, Kumiko Fujieda, Isamu Nanchi, Tomohiko Okuda, Mitsuru Notoya, Takanori Iwasaki, Hideo Yukioka
The octanoyl modification of ghrelin by ghrelin O-acyltransferase (GOAT) is essential for exerting its physiologic actions. Since exogenous acylated-ghrelin has shown to stimulate food intake in humans and rodents, GOAT has been regarded as a promising target for modulating appetite, thereby treating obesity and diabetes. However, GOAT-knockout (KO) mice have been reported to show no meaningful body weight reduction, when fed a high-fat diet. In this study, we sought to determine whether GOAT has a role in the regulation of body weight and food intake when fed a dietary sucrose...
2017: Endocrine Journal
https://www.readbyqxmd.com/read/28651207/metacognitive-therapy-versus-disorder-specific-cbt-for-comorbid-anxiety-disorders-a-randomized-controlled-trial
#18
Sverre Urnes Johnson, Asle Hoffart, Hans M Nordahl, Bruce E Wampold
Few studies have compared the effects of Metacognitive therapy (MCT) and Cognitive behavioral therapy (CBT) for comorbid anxiety disorders. In the current study we compared CBT and MCT for heterogeneous anxiety disorders in a residential setting. Ninety patients with a primary diagnosis of Post Traumatic Stress Disorder, Social Phobia or Panic disorder, with and without Agoraphobia, were randomized to either CBT or MCT. Patients were assessed at pre-treatment, post-treatment and one-year follow-up. Primary outcome measures were Beck Anxiety Inventory and ADIS IV and secondary outcome measures were SCID II, Beck Depression Inventory, Penn State Worry Questionnaire, The Symptom Checklist-90 and the Inventory of Interpersonal Problems-64...
June 15, 2017: Journal of Anxiety Disorders
https://www.readbyqxmd.com/read/28650328/studies-on-self-nanoemulsifying-drug-delivery-system-of-flurbiprofen-employing-long-medium-and-short-chain-triglycerides
#19
Junaid Daar, Ahmad Khan, Jallat Khan, Amjad Khan, Gul Majid Khan
The aim of the study was to successfully design, formulate and evaluate self-nanoemulsifying drug delivery system (SNEDDS) of poorly aqueous soluble drug viz. flurbiprofen using long (LCT), medium (MCT) and short chain triglycerides (SCT). The SNEDDS are thermodynamically stable lipid based drug delivery systems which consist of mixture of oil, surfactant and co-surfactant. Upon aqueous dilution, this mixture produces nano-emulsion spontaneously on slight agitation. The excipients intended to be used were screened for their potential to dissolve the drug and to form clear dispersion upon aqueous dilution...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28648356/effects-of-high-intensity-interval-versus-continuous-exercise-training-on-post-exercise-heart-rate-recovery-in-coronary-heart-disease-patients
#20
Koldobika Villelabeitia-Jaureguizar, Davinia Vicente-Campos, Alejandro Berenguel Senen, Verónica Hernández Jiménez, María Elvira Barrios Garrido-Lestache, Jose López Chicharro
BACKGROUND: Heart rate recovery (HRR) has been considered a prognostic and mortality indicator in both healthy and coronary patients. Physical exercise prescription has shown improvements in VO2peak and HRR, but most of the studies have been carried out applying continuous training at a moderate intensity, being very limited the use of protocols of high intensity interval training in coronary patients. We aimed to compare the effects of a moderate continuous training (MCT) versus a high intensity interval training (HIIT) programme on VO2peak and HRR...
June 17, 2017: International Journal of Cardiology
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