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F-T Li, C-H Yao, L Yao, Z-F Huo, J Liu
OBJECTIVE: To explore the effect of parecoxib on cerebral infarction in rats and the regulatory mechanism on hypothalamus orexin neurons (orexin) and protein expression. MATERIALS AND METHODS: 60 SD male rats were randomly divided into sham operation group, model group and treatment group (20 rats in each group). Cerebral infarction model was established by modified Longa method. Rats in the treatment group were given parecoxib (2.5 mg kg-1) in tail by intravenous injection, while both the sham operation group and the model group were given the equal volume of sterile PBS solution in the tail vein...
March 2018: European Review for Medical and Pharmacological Sciences
Akira Tanaka, Kazuaki Kato, Kohzo Ito, Kenji Urayama
The density of threaded ring molecules (fCD) in polyrotaxane (PR) chains has pronounced effects on the strain-induced swelling of PR gels where the cross-linked ring molecules are slidable along the network strands. The equilibrium Poisson's ratio (μ∞), which is a measure of the strain-induced volume change, for the PR gel increases with an increase in elongation (λ) at moderate λ but becomes a constant value () at sufficiently large λ. When the modulus exceeds a threshold value (Ec), the λ dependence of μ∞ disappears due to the loss of the slidability of the cross-links...
March 22, 2018: Soft Matter
Tuan Anh Ho, Yifeng Wang, Louise J Criscenti
Kerogen plays a central role in hydrocarbon generation in an oil/gas reservoir. In a subsurface environment, kerogen is constantly subjected to stress confinement or relaxation. The interplay between mechanical deformation and gas adsorption of the materials could be an important process for shale gas production but unfortunately is poorly understood. Using a hybrid Monte Carlo/molecular dynamics simulation, we show here that a strong chemo-mechanical coupling may exist between gas adsorption and mechanical strain of a kerogen matrix...
March 22, 2018: Physical Chemistry Chemical Physics: PCCP
Mingna Liao, Qilun Zhang, Fengling Tang, Zhiwei Xu, Xin Zhou, Youpeng Li, Yali Zhang, Chenghao Yang, Qiang Ru, Lingzhi Zhao
The synthesis of nanosized CoO anodes with unique morphologies via a hydrothermal method is investigated. By adjusting the pH values of reaction solutions, nanoflakes (CoO-NFs) and nanoflowers (CoO-FLs) are successfully located on copper foam. Compared with CoO-FLs, CoO-NFs as anodes for lithium ion batteries present ameliorated lithium storage properties, such as good rate capability, excellent cycling stability, and large CoO nanoflakes; CoO nanoflowers; anodes; binder free; lithium ion batteriesreversible capacity...
March 22, 2018: Nanomaterials
Tulsankar Sachin Laxman, Santosh Puttervu, Anjali Mishra, Sarvesh Verma, S P Singh, K V Sashidhara, C M Marandi, Shivani Saxena, Manoj K Yadav, Rabi S Bhatta
1) 16α-hydroxycleroda-3, 13(14) Z -dien-15, 16-olide (4655K-09 or K-09) is a novel clerodane diterpene lactone reported for its anti hyperlipidemic efficacy. The objective of the present study was to investigate the probable reversible metabolism of 4655K-09 and evaluate its effects on pharmacokinetic (PK) properties. 2) The PK studies were carried out through intravenous (IV) bolus administration of 4655K-09 and K-9T in mice at a dose of 3, 6, and 12 mg/kg separately. The oral PK study of 4655K-09 were carried out at therapeutic dose of 25 mg/kg...
March 22, 2018: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
Carmen Mayolas-Pi, Diego Munguia-Izquierdo, Carlos Peñarrubia-Lozano, Joaquín Reverter-Masia, Javier Bueno-Antequera, Isaac López-Laval, Miguel Ángel Oviedo-Caro, Víctor Murillo-Lorente, Alfonso Murillo-Fuentes, Federico Paris-García, Alejandro Legaz-Arrese
INTRODUCTION: There is limited information referred to the relationship between adherence to the Mediterranean Diet (AMD) and sports practice. OBJECTIVE: To determinate the association of cycling practice and cycling training volume with the AMD and the influence of the participation in a high-demand cyclist event on the AMD. MATERIAL AND METHODS: A first evaluation of AMD in 785 (84 women) amateur cyclists (volume: ≥ 7 hours/week), 514 (224 women) indoor cycling practitioners (volume: 2-6 hours/week) and 718 (411 women) inactive adults was conducted in May coinciding with the participation of cyclists in a cycling event...
November 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Dorota Watrobska-Swietlikowska, Agnieszka Szlagatys-Sidorkiewicz, Ronan MacLoughlin
INTRODUCTION: Newborn infants and small children require large amounts of calcium and phosphate in a low volume of solution which can increase the risk of precipitation of calcium phosphate. Calcium gluconate is the predominant calcium salt form employed in parenteral nutrition (PN) compounding due to its solubility profile with phosphate. Unfortunately, calcium gluconate contains higher levels of aluminum contamination than calcium chloride, resulting in an increased potential for aluminum toxicity in patients receiving traditional PN...
January 10, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Amy D Lynes, Chris S Hawes, Kevin Byrne, Wolfgang Schmitt, Thorfinnur Gunnlaugsson
Flexible benzene-1,3,5-tricarboxamides (BTAs), organic species well-known for their tendencies to form functional soft-materials by virtue of their complementary hydrogen bonding, are explored as structurally reinforcing supramolecular building blocks in porous coordination polymers. We report the synthesis and characterisation of two related, carboxylate-terminated BTA derivatives, and the structure and functionality of their polymeric Cd(ii) complexes. The polycarboxylate ligand benzene-1,3,5-tricarboxamide tris(phenylacetic acid) H3L1 was prepared, and the analogous trimethyl benzene-1,3,5-tricarboxamide tris acetate Me3L2 was prepared and its single crystal structure elucidated...
March 22, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Qingfen Yu, Sameh Othman, Sabyasachi Dasgupta, Thorsten Auth, Gerhard Gompper
Nanoparticles in biological systems encounter lipid-bilayer membranes as barriers. They interact with plasma membranes, membranous organelles, such as the endoplasmic reticulum and the Golgi apparatus, the nucleus, and intracellular and extracellular vesicles, such as autophagosomes, lysosomes, and exosomes. Extracellular vesicles have recently attracted particular attention, as they are involved in the transmission of biological signals and as regulators for biological processes. For example, exosomes, small vesicles containing proteins, mRNA, and miRNA, that are released by cells into the extracellular environment, have been suggested to participate in tumor metastasis...
March 22, 2018: Nanoscale
J Woo, J E Kim, J J Im, J Lee, H S Jeong, S Park, S-Y Jung, H An, S Yoon, S M Lim, S Lee, J Ma, E Y Shin, Y-E Han, B Kim, E H Lee, L Feng, H Chun, B-E Yoon, I Kang, S R Dager, I K Lyoo, C J Lee
The role of astrocytes in brain plasticity has not been extensively studied compared with that of neurons. Here we adopted integrative translational and reverse-translational approaches to explore the role of an astrocyte-specific major water channel in the brain, aquaporin-4 (AQP4), in brain plasticity and learning. We initially identified the most prevalent genetic variant of AQP4 (single nucleotide polymorphism of rs162008 with C or T variation, which has a minor allele frequency of 0.21) from a human database (n=60 706) and examined its functionality in modulating the expression level of AQP4 in an in vitro luciferase reporter assay...
April 2018: Molecular Psychiatry
Godela M Brosnahan, Kaleab Z Abebe, Charity G Moore, Kyongtae T Bae, William E Braun, Arlene B Chapman, Michael F Flessner, Peter C Harris, Marie C Hogan, Ronald D Perrone, Frederic F Rahbari-Oskoui, Theodore I Steinman, Vicente E Torres, The Halt Pkd Investigators
BACKGROUND: The HALT PKD trial in early autosomal dominant polycystic kidney disease (ADPKD) showed that intensive control of systolic blood pressure to 95-110 mmHg was associated with a 14% slower rate of kidney volume growth compared to standard control. It is unclear whether this result was due to greater blockade of the renin-angiotensin-aldosterone system (RAAS) by allowing the use of higher drug doses in the low blood pressure arm, or due to the lower blood pressure per se. METHODS: In this secondary analysis of HALT PKD Study A, we categorized participants into high and low dose groups based on the median daily equivalent dose of RAAS blocking drugs used after the initial dose titration period...
March 21, 2018: Current Hypertension Reviews
Thiago Lasevicius, Carlos Ugrinowitsch, Brad Jon Schoenfeld, Hamilton Roschel, Lucas Duarte Tavares, Eduardo Oliveira De Souza, Gilberto Laurentino, Valmor Tricoli
The present study investigated the effects of different intensities of resistance training (RT) on elbow flexion and leg press one-repetition maximum (1RM) and muscle cross-sectional area (CSA). Thirty men volunteered to participate in an RT programme, performed twice a week for 12 weeks. The study employed a within-subject design, in which one leg and arm trained at 20% 1RM (G20) and the contralateral limb was randomly assigned to one of the three conditions: 40% (G40); 60% (G60), and 80% 1RM (G80). The G20 started RT session with three sets to failure...
March 22, 2018: European Journal of Sport Science
Gökhan Artaş, Şehmus Pala, Tuncay Kuloğlu, Remzi Atilgan, Şeyda Yavuzkir, Alparslan Akyol
The aim of this study was to compare the effects of only aspiration with aspiration and 5% trichloroacetic acid (TCA) application on ovarian cyst size and ovarian reserve. The ovarian cysts of 14 rats that were divided into two groups randomly were investigated after total salpingectomy procedure. G1 was the group of saline application after cyst aspiration, while in G2, after aspiration 5% TCA at half amount of aspiration volume was injected into the cyst and re-aspirated after five minutes. The abdomens of the rats were closed and re-explored after 1 month...
March 22, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Zeyad H Al-Sowygh, Meshari Kh Aldamkh, Abdulelah M Binmahfooz, Khulud Abdulrahman Al-Aali, Zohaib Akram, Osama A Qutub, Fawad Javed, Tariq Abduljabbar
OBJECTIVES: It is hypothesized that levels of matrix metalloproteinase (MMP)-8 and MMP-9 are significantly higher in the peri-implant sulcular fluid (PISF) of waterpipe-smokers (WS) compared with never-smokers with peri-implantitis. The aim of the present convenience sample case-control study was to compare the levels of MMP-8 and MMP-9 in the PISF of WS and never-smokers with peri-implantitis. MATERIAL AND METHODS: Individuals smoking waterpipe (Group 1) and never-smokers (Group 2) were included...
March 22, 2018: Inhalation Toxicology
Sandro Gentile, Alessandra Fusco, Sara Colarusso, Marco Piscopo, Maria Rosaria Improta, Marco Corigliano, Emilia Martedi, Domenica Oliva, Antonietta Santorelli, Rosa Simonetti, Armando Giammarco, Caterina Colella, Luigia Miretto, Alessandra D'Alessandro, Viviana Russo, Giuseppina Guarino, Giampiero Marino, Gerardo Corigliano, Felice Strollo
BACKGROUND: Incorrect insulin administration techniques may greatly affect metabolic control in T2DM people. The aim of our study was to compare glycemic control associated with a concentrated insulin analog preparation (U-200 lispro) in people with T2DM to the one observed with standard U-100 lispro. METHODS: 126 patients with T2DM were enrolled. Half of them were randomized to U-100 lispro, half to U-200 and after 12 weeks they were switched to the other preparation for 12 weeks...
March 22, 2018: Expert Opinion on Drug Safety
Noor Ul-Ain Baloch, Marvi Bikak, Abdul Rehman, Omar Rahman
INTRODUCTION: Idiopathic systemic capillary leak syndrome (SCLS) is a unique disorder characterized by episodes of massive systemic leak of intravascular fluid leading to volume depletion and shock. A typical attack of SCLS consists of prodromal, leak and post-leak phases. Complications, such as compartment syndrome and pulmonary edema, usually develop during the leak and post-leak phases respectively. Judicious intravenous hydration and early use of vasopressors is the cornerstone of management in such cases...
March 22, 2018: Expert Review of Cardiovascular Therapy
Reza Rasti, Alireza Mehridehnavi, Hossein Rabbani, Fedra Hajizadeh
The present research intends to propose a fully automatic algorithm for the classification of three-dimensional (3-D) optical coherence tomography (OCT) scans of patients suffering from abnormal macula from normal candidates. The method proposed does not require any denoising, segmentation, retinal alignment processes to assess the intraretinal layers, as well as abnormalities or lesion structures. To classify abnormal cases from the control group, a two-stage scheme was utilized, which consists of automatic subsystems for adaptive feature learning and diagnostic scoring...
March 2018: Journal of Biomedical Optics
Cassio V Ruas, Lee E Brown, Camila D Lima, G Gregory Haff, Ronei S Pinto
The aim of this study was to compare three specific concentric and eccentric muscle action training protocols on quadriceps-hamstrings neuromuscular adaptations. Forty male volunteers performed 6 weeks of training (two sessions/week) of their dominant and non-dominant legs on an isokinetic dynamometer. They were randomly assigned to one of four groups; concentric quadriceps and concentric hamstrings (CON/CON, n=10), eccentric quadriceps and eccentric hamstrings (ECC/ECC, n=10), concentric quadriceps and eccentric hamstrings (CON/ECC, n=10), or no training (CTRL, n=10)...
March 21, 2018: International Journal of Sports Medicine
Pinar Kosekahya, Kadir Gokhan Atilgan, Cemile Ucgul Atilgan, Kemal Tekin, Mustafa Koc, Mehtap Caglayan, Deniz Ayli, Pelin Yilmazbas
PURPOSE: To evaluate the corneal and tear film characteristics in patients with gout and compare these data with those of healthy subjects and to investigate the correlation of corneal densitometry with uric acid value and duration of disease. METHODS: Forty-one eyes of 41 patients with gout (group 1) and 40 eyes of 40 healthy subjects (group 2) were included in this study. Detailed ophthalmologic examinations were performed on all participants. Corneal tomographic analyses were performed with the Pentacam HR Scheimpflug imaging system (Oculus, Wetzlar, Germany)...
March 21, 2018: International Ophthalmology
K Białek-Gosk, R Rubinsztajn, S Białek, M Paplińska-Goryca, R Krenke, R Chazan
Aging and menopause are closely related to hormonal and metabolic changes. Vitamin D is a crucial factor modulating several metabolic processes. The aim of this study was to evaluate biomarkers of bone metabolism in peri- and postmenopausal women with obstructive lung diseases. Sixty two female patients, 27 with asthma and 35 with COPD, aged over 45 years (median age 58 and 64 years, respectively) were enrolled into the study. The evaluation included lung function, bone mineral density, serum concentration of vitamin D, and bone metabolism markers...
March 22, 2018: Advances in Experimental Medicine and Biology
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