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https://www.readbyqxmd.com/read/28101913/nasopharyngeal-colonization-with-streptococcus%C3%A2-pneumoniae-triggers-dendritic-cell-dependent-antibody-responses-against-invasive-disease-in-mice
#1
Anne Dommaschk, Nadine Ding, Meritxell Tort Tarres, Lara F Bittersohl, Regina Maus, Jennifer Stolper, Danny Jonigk, Peter Braubach, Torsten Lippmann, Tobias Welte, Ulrich A Maus
Nasopharyngeal colonization with Streptococcus pneumoniae (Spn) is an important precondition for the development of pneumococcal pneumonia. At the same time, nasopharyngeal colonization with Spn has been shown to mount adaptive immune responses against Spn in mice and humans. Cellular responses of the nasopharyngeal compartment, including the nasal-associated lymphoid tissue (NALT), to pneumococcal colonization and their importance for developing adaptive immune responses are poorly defined. We show that nasopharyngeal colonization with S...
January 19, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28100262/dental-caries-status-of-patients-with-schizophrenia-in-seville-spain-a-case-control-study
#2
Eugenio Velasco-Ortega, L Monsalve-Guil, I Ortiz-Garcia, A Jimenez-Guerra, J Lopez-Lopez, J J Segura-Egea
BACKGROUND: The aim of this study was to assess the dental status (DMFT) in patients with schizophrenia compared with a control group. MATERIAL: In this case-control study, 50 patients with schizophrenia attended in the Psychiatric Unit at the Virgen Macarena University Hospital of Seville were compared with 50 people (without systemic diseases and not taking psychotropic drugs) in a control group attended in the School of Dentistry of Seville. Decayed, missing and filled teeth (DMFT) were assessed according to the World Health Organization WHO criteria...
January 18, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28099210/pazopanib-a-promising-option-for-the-treatment-of-aggressive-fibromatosis
#3
Zoltan Szucs, Christina Messiou, Han Hsi Wong, Helen Hatcher, Aisha Miah, Shane Zaidi, Winette T A van der Graaf, Ian Judson, Robin L Jones, Charlotte Benson
Desmoid tumour/aggressive fibromatosis (DT/AF) is a rare soft-tissue neoplasm that is locally aggressive but does not metastasize. There is no standard systemic treatment for symptomatic patients, although a number of agents are used. Tyrosine kinase inhibitors have recently been reported to show useful activity. We reviewed our bi-institutional (Royal Marsden Hospital, Cambridge University Hospitals) experience with the tyrosine kinase inhibitor pazopanib in the treatment of progressing DT/AF. Eight patients with DT/AF were treated with pazopanib at Royal Marsden Hospital and Cambridge University Hospitals between June 2012 and June 2016...
January 17, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28098510/dt-mri-microstructural-cortical-lesion-damage-does-not-explain-cognitive-impairment-in-ms
#4
Paolo Preziosa, Elisabetta Pagani, Maria E Morelli, Massimiliano Copetti, Vittorio Martinelli, Fiammetta Pirro, Andrea Falini, Giancarlo Comi, Massimo Filippi, Maria A Rocca
OBJECTIVE: We combined double inversion recovery (DIR) and diffusion tensor (DT) magnetic resonance imaging (MRI) to quantify the severity of cortical lesion (CL) microstructural tissue abnormalities in a large cohort of relapse-onset multiple sclerosis (MS) patients and its contribution to cognitive dysfunction. METHODS: DIR, DT, dual-echo, and three-dimensional (3D) T1-weighted scans were acquired from 149 MS patients and 40 controls. Cognitively impaired (CI) patients had ⩾2 abnormal neuropsychological tests...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28097524/pubovisceralis-muscle-fiber-architecture-determination-comparison-between-biomechanical-modeling-and-diffusion-tensor-imaging
#5
Sofia Brandão, Marco Parente, Elisabete Silva, Thuane Da Roza, Teresa Mascarenhas, João Leitão, João Cunha, Renato Natal Jorge, Rita Gouveia Nunes
Biomechanical analysis of pelvic floor dysfunction requires knowledge of certain biomechanical parameters, such as muscle fiber direction, in order to adequately model function. Magnetic resonance (MR) diffusion tensor imaging (DTI) provides an estimate of overall muscle fiber directionality based on the mathematical description of water diffusivity. This work aimed at evaluating the concurrence between pubovisceralis muscle fiber representations obtained from DTI, and the maximum principal stress lines obtained through the finite element method...
January 17, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28095854/the-effects-of-detraining-and-training-on-adipose-tissue-lipid-droplet-in-obese-mice-after-chronic-high-fat-diet
#6
Ju Yong Bae, Jinhee Woo, Hee Tae Roh, Yul Hyo Lee, Kangeun Ko, Sunghwun Kang, Ki Ok Shin
BACKGROUND: It is well known that exercise promotes lipolysis by stimulating the lipid droplet (LD) signaling pathway. However, few studies have been conducted to examine the effect of detraining with high fat diet (HFD) and training effects after long-term HFD. Here, we investigated the effect of detraining and training on adipose tissue LD pathway in diet-induced obese mice after continuous HFD. METHODS: Seventy male C57BL/6 mice were randomly assigned into a Normal diet + Sedentary group (ND, n = 10) or a High-fat diet + Sedentary group (HF, n = 50); in the HF group, obesity was induced by a 45% fat chow for six weeks...
January 17, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28093312/palliative-medicine-and-preparedness-planning-for-patients-receiving-left-ventricular-assist-device-as-destination-therapy-challenges-to-measuring-impact-and-change-in-institutional-culture
#7
Brandon P Verdoorn, Angela J Luckhardt, Sara E Wordingham, Shannon M Dunlay, Keith M Swetz
CONTEXT: While left ventricular assist devices as destination therapy (DT-LVAD) can improve survival, quality of life, and functional capacity in well-selected patients with advanced heart failure, there remain unique challenges to providing quality end-of-life care in this population. Palliative care involvement is universally recommended, but how to best operationalize this care and measure success is unknown. OBJECTIVES: To characterize the process of preparedness planning (PP) for patients receiving DT-LVAD at our institution and better understand opportunities for quality improvement or procedural transferability...
January 13, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28092864/augmentation-of-humoral-and-cellular-immunity-in-response-to-tetanus-and-diphtheria-toxoids-by-supercritical-carbon-dioxide-extracts-of-hippophae-rhamnoides-l-leaves
#8
Bindhya Jayashankar, Divya Singh, Himanshi Tanwar, K P Mishra, Swetha Murthy, Sudipta Chanda, Jigni Mishra, R Tulswani, K Misra, S B Singh, Lilly Ganju
Hippophae rhamnoides L. commonly known as Seabuckthorn (SBT), a wild shrub of family Elaegnacea, has extensively used for treating various ailments like skin diseases, jaundice, asthma, lung troubles. SBT leaves have been reported to possess several pharmacological properties including immunomodulatory, antioxidant, anti-inflammatory, antimicrobial and tissue regeneration etc. The present study was undertaken to evaluate the adjuvant property of supercritical carbon dioxide extracts (SCEs 300ET and 350ET) of SBT leaves in balb/c mice immunized with Tetanus and Diphtheria toxoids...
January 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28088517/osborne-mendel-rats-simultaneously-develop-cardiac-and-renal-dysfunction-left-atrial-thrombosis-peripheral-artery-occlusion-and-ascending-aortic-dissection
#9
Makoto Asahina, Hideki Matsumoto, Yoshitaka Yasuhara, Noriko Suzuki, Ritsuko Takami, Michiyasu Takeyama, Ryuichi Tozawa
Although chronic kidney disease (CKD) is strongly associated with onsets of cardiovascular disease (CVD), the pathogenic mechanism between these diseases has not been fully understood. To develop and validate new therapeutic strategies for this complication, appropriate experimental models that reflect the complexity of the underlying pathophysiology are needed. The Osborne-Mendel (OM) rat was identified as an atherosclerosis-prone and a premature-death rat strain among 16 inbred rat strains when fed high-cholesterol containing diet...
January 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28086899/evaluations-of-diffusion-tensor-image-registration-based-on-fiber-tractography
#10
Yi Wang, Yu Shen, Dongyang Liu, Guoqin Li, Zhe Guo, Yangyu Fan, Yilong Niu
BACKGROUND: Diffusion Tensor Magnetic Resonance Imaging (DT-MRI, also known as DTI) measures the diffusion properties of water molecules in tissues and to date is one of the main techniques that can effectively study the microstructures of the brain in vivo. Presently, evaluation of DTI registration techniques is still in an initial stage of development. METHODS AND RESULTS: In this paper, six well-known open source DTI registration algorithms: Elastic, Rigid, Affine, DTI-TK, FSL and SyN were applied on 11 subjects from an open-access dataset, among which one was randomly chosen as the template...
January 10, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28077962/the-influence-of-duodenally-delivered-shakuyakukanzoto-shao-yao-gan-cao-tang-on-duodenal-peristalsis-during-endoscopic-retrograde-cholangiopancreatography-a-randomised-controlled-trial
#11
Haruka Fujinami, Shinya Kajiura, Jun Nishikawa, Takayuki Ando, Toshiro Sugiyama
BACKGROUND: Anti-cholinergic agents may be used to inhibit duodenal peristalsis, but they may have adverse effects. Shakuyakukanzoto (Shao Yao Gan Cao Tang) has an anti-spasmodic effect and has been used before for oesophagogastroduodenoscopy and colonoscopy. This randomised clinical trial aimed to evaluate the inhibitory effect of Shakuyakukanzoto on duodenal peristalsis, and its usefulness when administered into the duodenum just before endoscopic retrograde cholangiopancreatography (ERCP)...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28076985/two-new-diketopiperazines-from-the-tin-mine-tailings-derived-fungus-schizophyllum-commune-yim-dt-10058
#12
Wei-Xun Chunyu, Zhang-Gui Ding, Jiang-Yuan Zhao, Yong-Xia Wang, Xiu-Lin Han, Ming-Gang Li, Meng-Liang Wen
Two new diketopiperazines, named diphenylalazine C (1) and epicoccin U (2), together with six known compounds (3-8) were isolated from the EtOAc extract of the fermentation broth of the tin mine tailings-derived fungus Schizophyllum commune YIM DT 10058. Their structures were elucidated by detailed analysis of spectroscopic data and comparison with related known compounds. Compounds 1 and 2 exhibited weak antibacterial and cytotoxic activities.
January 11, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28074543/low-distress-tolerance-predicts-heightened-drug-seeking-and-taking-after-extended-abstinence-from-cocaine-self-administration
#13
Travis M Moschak, Douglas R Terry, Stacey B Daughters, Regina M Carelli
Distress tolerance (DT), defined as the ability to persist in goal-directed behavior while experiencing psychological distress, is associated with greater frequency of substance use and poor treatment outcomes. To examine a potential causal role substance use may play in DT, we developed a rodent model of DT in which rats had to press a lever within a continuously decreasing time window for reward while receiving negative feedback on failure trials. DT was defined as the time rats continued to seek reward before quitting the task...
January 11, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28073660/effectiveness-of-subcutaneous-implantable-cardioverter-defibrillator-testing-in-patients-with-hypertrophic-cardiomyopathy
#14
Niccoló Maurizi, Ilaria Tanini, Iacopo Olivotto, Ernesto Amendola, Giuseppe Limongelli, Maria Angela Losi, Giuseppe Allocca, Giovanni Battista Perego, Paolo Pieragnoli, Giuseppe Ricciardi, Paolo De Filippo, Paola Ferrari, Giovanni Quarta, Stefano Viani, Antonio Rapacciuolo, Maria Grazia Bongiorni, Franco Cecchi
BACKGROUND: Subcutaneous ICD (S-ICD) is a promising option for Hypertrophic Cardiomyopathy (HCM) patients at risk of Sudden Cardiac Death (SCD). However, its effectiveness in terminating ventricular arrhythmias in HCM is yet unresolved. METHODS: Consecutive HCM patients referred for S-ICD implantation were prospectively enrolled. Patients underwent one or two attempts of VF induction by the programmer. Successful conversion was defined as any 65J shock that terminated VF (not requiring rescue shocks)...
January 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28070059/differences-in-cardiovascular-responses-to-alamandine-in-two-kidney-one-clip-hypertensive-and-normotensive-rats
#15
Ava Soltani Hekmat, Kazem Javanmardi, Amin Kouhpayeh, Ehsan Baharamali, Mojtaba Farjam
BACKGROUND: Alamandine is a newly discovered component of the renin-angiotensin system, which regulates blood pressure. In this study, the effect of alamandine on cardiovascular parameters in two-kidney, one clip (2K1C) hypertensive rats and normotensive rats, and the possible roles of the angiotensin II type 1 receptor (AT1R) and the PD123319-sensitive receptors in mediating this effect was investigated.Methods and Results:The cardiovascular parameters were monitored for 10 min before the infusion of the drugs or saline, and for 30 min afterward...
January 7, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28069424/different-regulation-of-insulin-on-glucose-and-lipid-metabolism-in-2-strains-of-gibel-carp
#16
Junyan Jin, Xiaoming Zhu, Dong Han, Yunxia Yang, Haokun Liu, Shouqi Xie
To test the hypothesis that response to insulin by regulating glucose and lipid metabolism in gibel carp A strain may be different from that in DT strain, bovine insulin was injected into both strains of gibel carp after previous fasting for 48 h. The results showed that insulin induced hypoglycemia at 3 h in 2 strains, and that this was coupled with increased expression of glucose transporters (GLUT2 in the liver and GLUT1, GLUT4 in the muscle) and glycolytic enzyme (HK2 in the muscle) in both strains. Insulin induced increased glycolysis (GK) and fatty acid oxidation (ACO3 in the liver and CPT1a, ACO3 in the muscle) in the DT strain...
January 6, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28069152/use-of-the-distress-thermometer-in-a-cancer-helpline-context-can-it-detect-changes-in-distress-is-it-acceptable-to-nurses-and-callers-and-do-high-scores-lead-to-internal-referrals
#17
Karen Linehan, Kate M Fennell, Donna L Hughes, Carlene J Wilson
PURPOSE: To improve understanding about; (1) the validity of the Distress Thermometer (DT) as a measure of changes in distress after a cancer helpline call, (2) the impact of a helpline call on callers' distress, (3) caller and helpline nurses' comfort with use of the DT, and (4) the extent to which DT scores over the critical threshold, are associated with referral to internal support services for follow-up psychosocial care. METHODS: Callers (people diagnosed with cancer and their family/friends: N = 100) completed a questionnaire that included DT ratings (three time-points), the Depression Anxiety and Stress Scale-21 (DASS-21) and measures of comfort with the DT tool...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28065783/mathematical-modeling-of-mutant-transferrin-crm107-molecular-conjugates-for-cancer-therapy
#18
Dennis J Yoon, Kevin Y Chen, André M Lopes, April A Pan, Joseph Shiloach, Anne B Mason, Daniel T Kamei
The transferrin (Tf) trafficking pathway is a promising mechanism for use in targeted cancer therapy due to the overexpression of transferrin receptors (TfRs) on cancerous cells. We have previously developed a mathematical model of the Tf/TfR trafficking pathway to improve the efficiency of Tf as a drug carrier. By using diphtheria toxin (DT) as a model toxin, we found that mutating the Tf protein to change its iron release rate improves cellular association and efficacy of the drug. Though this is an improvement upon using wild-type Tf as the targeting ligand, conjugated toxins like DT are unfortunately still highly cytotoxic at off-target sites...
January 6, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28062507/brown-adipose-tissue-regulates-small-artery-function-through-nadph-oxidase-4-derived-hydrogen-peroxide-and-redox-sensitive-protein-kinase-g-1%C3%AE
#19
Malou Friederich-Persson, Aurelie Nguyen Dinh Cat, Patrik Persson, Augusto C Montezano, Rhian M Touyz
OBJECTIVE: Biomedical interest in brown adipose tissue (BAT) has increased since the discovery of functionally active BAT in adult humans. Although white adipose tissue (WAT) influences vascular function, vascular effects of BAT are elusive. Thus, we investigated the regulatory role and putative vasoprotective effects of BAT, focusing on hydrogen peroxide, nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4), and redox-sensitive signaling. APPROACH AND RESULTS: Vascular reactivity was assessed in wild-type and Nox4-knockout mice (Nox4(-/-)) by wire myography in the absence and presence of perivascular adipose tissue of different phenotypes from various adipose depots: (1) mixed WAT/BAT (inguinal adipose tissue) and (2) WAT (epididymal visceral fat) and BAT (intrascapular fat)...
December 22, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28060909/long-term-depletion-of-conventional-dendritic-cells-cannot-be-maintained-in-an-atherosclerotic-zbtb46-dtr-mouse-model
#20
Miche Rombouts, Nathalie Cools, Mandy O J Grootaert, Flore de Bakker, Ilse Van Brussel, An Wouters, Guido R Y De Meyer, Benedicte Y De Winter, Dorien M Schrijvers
BACKGROUND AND AIMS: Increased evidence suggests a pro-atherogenic role for conventional dendritic cells (cDC). However, due to the lack of an exclusive marker for cDC, their exact contribution to atherosclerosis remains elusive. Recently, a unique transcription factor was described for cDC, namely Zbtb46, enabling us to selectively target this cell type in mice. METHODS: Low-density lipoprotein receptor-deficient (Ldlr-/-) mice were transplanted with bone marrow from Zbtb46-diphtheria toxin receptor (DTR) transgenic mice following total body irradiation...
2017: PloS One
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