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https://www.readbyqxmd.com/read/28098946/negative-association-between-mr-spectroscopic-glutamate-markers-and-gray-matter-volume-after-alcohol-withdrawal-in-the-hippocampus-a-translational-study-in-humans-and-rats
#1
Ulrich Frischknecht, Derik Hermann, Nuran Tunc-Skarka, Guo-Ying Wang, Markus Sack, Julia van Eijk, Traute Demirakca, Claudia Falfan-Melgoza, Bertram Krumm, Sandra Dieter, Rainer Spanagel, Falk Kiefer, Karl F Mann, Wolfgang H Sommer, Gabriele Ende, Wolfgang Weber-Fahr
BACKGROUND: Both chronic alcohol consumption and alcohol withdrawal lead to neural tissue damage which partly recovers during abstinence. This study investigated withdrawal-associated changes in glutamatergic compounds, markers of neuronal integrity, and gray matter volumes during acute alcohol withdrawal in the hippocampus, a key region in development and maintenance of alcohol dependence in humans and rats. METHODS: Alcohol-dependent patients (N = 39) underwent magnetic resonance imaging (MRI) and MR spectroscopy (MRS) measurements within 24 hours after the last drink and after 2 weeks of abstinence...
January 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28098887/mirna%C3%A2-375-regulates-the-cell-survival-and-apoptosis-of-human-non%C3%A2-small-cell-carcinoma-by-targeting-her2
#2
Longqiang Cheng, Bingxiang Zhan, Peng Luo, Baolong Wang
micro (mi)‑RNAs are a class of small non‑coding RNAs that regulate gene expression by binding to the 3'‑untranslated region of mRNA, which may lead to mRNA degradation or transcription regulation. Previous studies indicated that miRNAs are important for the pathogenesis of human cancer. miR‑375 has been implicated in various tumor types; however, the biological activity in human non‑small cell lung carcinoma (NSCLC) cells remains to be fully elucidated. The purpose of the present study was to investigate the biological importance of miR‑375 in human NSCLC cells...
January 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098883/developmental-expression-of-toll%C3%A2-like-receptors-in-the-guinea-pig-lung
#3
Lingjie Ma, Jiali Yang, Li Yang, Juan Shi, Jing Xue, Yong Li, Xiaoming Liu
The guinea pig is a useful model for investigating infectious and non‑infectious lung diseases due to the sensitivity of its respiratory system and susceptibility to infectious agents. Toll‑like receptors (TLRs) are important components of the innate immune response and are critical for lung immune function. In the present study, the differentiation of epithelial cells in the guinea pig lung was examined during gestation by studying anatomic morphology and the major epithelial cell types using cell type‑specific markers...
January 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098874/mica-il-12-a-novel-bifunctional-protein-for-killer-cell-activation
#4
Ashlee Tietje, Xi Yang, Xianzhong Yu, Yanzhang Wei
Natural killer (NK) cells have the potential to be effective killers of tumor cells. They are governed by inhibitory and activating receptors such as NKG2D, whose ligands are normally upregulated in cells that are stressed, like cancer cells. Advanced cancer cells, however, have ways to reduce the expression of these ligands, leaving them less detectable by NK cells. Along with these receptors, NK cells also require activating cytokines, such as IL-12. A previous study in our laboratory showed that a fusion protein of the extracellular domain of mouse UL-16 binding protein-like transcript 1 (MULT1E) and mouse interleukin 12 (IL-12) can effectively activate mouse NK cells by in vitro assays and in vivo in animal tumor models...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098813/reverse-vaccinology-an-approach-for-identifying-leptospiral-vaccine-candidates
#5
REVIEW
Odir A Dellagostin, André A Grassmann, Caroline Rizzi, Rodrigo A Schuch, Sérgio Jorge, Thais L Oliveira, Alan J A McBride, Daiane D Hartwig
Leptospirosis is a major public health problem with an incidence of over one million human cases each year. It is a globally distributed, zoonotic disease and is associated with significant economic losses in farm animals. Leptospirosis is caused by pathogenic Leptospira spp. that can infect a wide range of domestic and wild animals. Given the inability to control the cycle of transmission among animals and humans, there is an urgent demand for a new vaccine. Inactivated whole-cell vaccines (bacterins) are routinely used in livestock and domestic animals, however, protection is serovar-restricted and short-term only...
January 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098485/effects-of-umbilical-cord-blood-stem-cells-on-healing-factors-for-diabetic-foot-injuries
#6
N Çil, E O Oğuz, E Mete, A Çetinkaya, G A Mete
The use of stem or progenitor cells from bone marrow, or peripheral or umbilical cord blood is becoming more common for treatment of diabetic foot problems. These cells promote neovascularization by angiogenic factors and they promote epithelium formation by stimulating cell replication and migration under certain pathological conditions. We investigated the role of CD34 + stem cells from human umbilical cord blood in wound healing using a rat model. Rats were randomly divided into a control group and two groups with diabetes induced by a single dose of 55 mg/kg intraperitoneal streptozocin...
January 18, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28098415/intracranial-aav-ifn-%C3%AE-gene-therapy-eliminates-invasive-xenograft-glioblastoma-and-improves-survival-in-orthotopic-syngeneic-murine-model
#7
Dwijit GuhaSarkar, James Neiswender, Qin Su, Guangping Gao, Miguel Sena-Esteves
The highly invasive property of glioblastoma (GBM) cells and genetic heterogeneity are largely responsible for tumor recurrence after the current standard-of-care treatment and thus a direct cause of death. Previously, we have shown that intracranial interferon-beta (IFN-β) gene therapy by locally administered adeno-associated viral vectors (AAV) successfully treats noninvasive orthotopic glioblastoma models. Here, we extend these findings by testing this approach in invasive human GBM xenograft and syngeneic mouse models...
November 9, 2016: Molecular Oncology
https://www.readbyqxmd.com/read/28098247/c-jun-n-terminal-kinase-2-promotes-enterocyte-survival-and-goblet-cell-differentiation-in-the-inflamed-intestine
#8
A D Mandić, E Bennek, J Verdier, K Zhang, S Roubrocks, R J Davis, B Denecke, N Gassler, K Streetz, A Kel, M Hornef, F J Cubero, C Trautwein, G Sellge
c-Jun N-terminal kinases (JNKs) contribute to immune signaling but their functional role during intestinal mucosal inflammation has remained ill defined. Using genetic mouse models, we characterized the role of JNK1 and JNK2 during homeostasis and acute colitis. Epithelial apoptosis, regeneration, differentiation, and barrier function were analyzed in intestinal epithelium-specific (ΔIEC) or complete JNK1 and bone marrow chimeric or complete JNK2 deficient mice as well as double-knockout animals (JNK1(ΔIEC)JNK2(-/-)) during homeostasis and acute dextran sulfate sodium (DSS)-induced colitis...
January 18, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28098218/the-role-of-mir-497-5p-in-myofibroblast-differentiation-of-lr-mscs-and-pulmonary-fibrogenesis
#9
Xiang Chen, Chaowen Shi, Cong Wang, Weilin Liu, Yanhong Chu, Zou Xiang, Kebin Hu, Ping Dong, Xiaodong Han
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive and fatal fibrotic lung disease characterized by profound changes in stem cell differentiation, epithelial cell phenotypes and fibroblast proliferation. In our study, we found that miR-497-5p was significantly upregulated both during myofibroblast differentiation of lung resident mesenchymal stem cells (LR-MSCs) and in the lung tissues of a pulmonary fibrosis model. In addition, as determined by luciferase assays and Western blot analysis, reversion-inducing cysteine-rich protein with kazal motifs (Reck) was identified to be one of the target genes of miR-497-5p, and Reck could suppress the expression of matrix metalloproteinase-2 (Mmp2) and Mmp9, which could activate latent transforming growth factor-β1 (TGF-β1)...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098197/dantrolene-versus-amiodarone-for-cardiopulmonary-resuscitation-a-randomized-double-blinded-experimental-study
#10
Thomas Wiesmann, Dennik Freitag, Wolfgang Dersch, Daphne Eschbach, Marc Irqsusi, Thorsten Steinfeldt, Hinnerk Wulf, Carsten Feldmann
Dantrolene was introduced for treatment of malignant hyperthermia. It also has antiarrhythmic properties and may thus be an alternative to amiodarone for the treatment of ventricular fibrillation (VF). Aim of this study was to compare the return of spontaneous circulation (ROSC) with dantrolene and amiodarone in a pig model of cardiac arrest. VF was induced in anesthetized pigs. After 8 min of untreated VF, chest compressions and ventilation were started and one of the drugs (amiodarone 5 mg kg(-1), dantrolene 2...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097930/encapsulation-of-sesbania-grandiflora-extract-in-polymeric-micelles-to-enhance-its-solubility-stability-and-antibacterial-activity
#11
Siriporn Okonogi, Pimporn Anantaworasakul
Clinical applications of Sesbania grandiflora bark extract (SGE) are limited because of its poor water solubility and stability. SGE was loaded in micelles of Pluronics. In vitro and in vivo antibacterial and toxicity tests were investigated using broth dilution and silkworm model. Aqueous solubility of SGE was improved by these micelles. Activity and toxicity of SGE loaded micelles was depended on type and concentration of Pluronics. The micelles composed of 1:3 SGE to Pluronic F68 (SGE-PF68-13) showed small size (24...
January 18, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28097810/physicochemical-and-biological-evaluation-of-a-cinnamamide-derivative-r-s-2e-1-3-hydroxypiperidin-1-yl-3-phenylprop-2-en-1-one-km-608-for-nervous-system-disorders
#12
Agnieszka Gunia-Krzyżak, Ewa Żesławska, Florence Bareyre, Wojciech Nitek, Anna M Waszkielewicz, Henryk Marona
A cinnamamide scaffold has been successfully incorporated in several compounds possessing desirable pharmacological activities in central and peripheral nervous system such as anticonvulsant, antidepressant, neuroprotective, analgesic, anti-inflammatory, muscle relaxant, and sedative/hypnotic properties. R,S-(2E)-1-(3-hydroxypiperidin-1-yl)-3-phenylprop-2-en-1-one (KM-608), a cinnamamide derivative, was synthesized, its chemical structure was confirmed by means of spectroscopy and crystallography, additionally thermal analysis showed that it exists in one crystalline form...
January 18, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28097689/investigating-magnetic-susceptibility-of-human-knee-joint-at-7-tesla
#13
Hongjiang Wei, Russell Dibb, Kyle Decker, Nian Wang, Yuyao Zhang, Xiaopeng Zong, Weili Lin, Daniel B Nissman, Chunlei Liu
PURPOSE: To evaluate the magnetic susceptibility properties of different anatomical structures within the knee joint using quantitative susceptibility mapping (QSM). METHODS: A collagen tissue model was simulated and ex vivo animal cartilage experiments were conducted at 9.4 Tesla (T) to evaluate the B0 orientation-dependent magnetic susceptibility contrast observed in cartilage. Furthermore, nine volunteers (six healthy subjects without knee pain history and three patients with known knee injury, between 29 and 58 years old) were scanned using gradient-echo acquisitions on a high-field 7T MR scanner...
January 17, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28097684/feeding-asian-pangolins-an-assessment-of-current-diets-fed-in-institutions-worldwide
#14
Francis Cabana, Amy Plowman, Thai Van Nguyen, Shih-Chien Chin, Sung-Lin Wu, Hsuan-Yi Lo, Hirofumi Watabe, Fujio Yamamoto
Pangolins are ant specialists which are under intense threat from the illegal wildlife trade. Nutrition has notoriously been their downfall in captivity and is still an issue in regards to rescue and rehabilitation. We analyzed the nutrient content of diets used by institutions that are successfully keeping Asian pangolins and to assess the variety of the ingredients and nutrients, compared these with the nutritional requirements of potential nutritional model species. We performed intake studies at five institutions and also had data from three other institutions...
January 18, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28097669/mathematical-modeling-of-rotary-blood-pumps-in-a-pulsatile-in-vitro-flow-environment
#15
Tohid Pirbodaghi
Nowadays, sacrificing animals to develop medical devices and receive regulatory approval has become more common, which increases ethical concerns. Although in vivo tests are necessary for development and evaluation of new devices, nonetheless, with appropriate in vitro setups and mathematical models, a part of the validation process can be performed using these models to reduce the number of sacrificed animals. The main aim of this study is to present a mathematical model simulating the hydrodynamic function of a rotary blood pump (RBP) in a pulsatile in vitro flow environment...
January 18, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28097645/bacterial-subversion-of-camp-signalling-inhibits-cathelicidin-expression-which-is-required-for-innate-resistance-to-mycobacterium-tuberculosis
#16
Shashank Gupta, Kathryn Winglee, Richard Gallo, William R Bishai
Antimicrobial peptides such as cathelicidins are an important component of innate immune defence against inhaled microorganisms and have demonstrated antimicrobial activity against Mycobacterium tuberculosis with in vitro models. Despite this, little is known about the regulation and expression of cathelicidin during tuberculosis in vivo. We sought to determine whether the cathelicidin-related antimicrobial peptide (Cramp) gene, the murine functional homologue of the human cathelicidin gene (CAMP or LL-37), is required for regulating protective immunity during M...
January 18, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28097525/automated-bone-segmentation-and-surface-evaluation-of-a-small-animal-model-of-post-traumatic-osteoarthritis
#17
Austin J Ramme, Kevin Voss, Jurinus Lesporis, Matin S Lendhey, Thomas R Coughlin, Eric J Strauss, Oran D Kennedy
MicroCT imaging allows for noninvasive microstructural evaluation of mineralized bone tissue, and is essential in studies of small animal models of bone and joint diseases. Automatic segmentation and evaluation of articular surfaces is challenging. Here, we present a novel method to create knee joint surface models, for the evaluation of PTOA-related joint changes in the rat using an atlas-based diffeomorphic registration to automatically isolate bone from surrounding tissues. As validation, two independent raters manually segment datasets and the resulting segmentations were compared to our novel automatic segmentation process...
January 17, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28097231/protein-disulfide-isomerase-inhibition-blocks-thrombin-generation-in-humans-by-interfering-with-platelet-factor-v-activation
#18
Jack D Stopa, Donna Neuberg, Maneka Puligandla, Bruce Furie, Robert Flaumenhaft, Jeffrey I Zwicker
BACKGROUND: Protein disulfide isomerase (PDI) is required for thrombus formation. We previously demonstrated that glycosylated quercetin flavonoids such as isoquercetin inhibit PDI activity and thrombus formation in animal models, but whether extracellular PDI represents a viable anticoagulant target in humans and how its inhibition affects blood coagulation remain unknown. METHODS: We evaluated effects of oral administration of isoquercetin on platelet-dependent thrombin generation in healthy subjects and patients with persistently elevated anti-phospholipid antibodies...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28097203/staged-anticonvulsant-screening-for-chronic-epilepsy
#19
Yevgeny Berdichevsky, Yero Saponjian, Kyung-Il Park, Bonnie Roach, Wendy Pouliot, Kimberly Lu, Waldemar Swiercz, F Edward Dudek, Kevin J Staley
OBJECTIVE: Current anticonvulsant screening programs are based on seizures evoked in normal animals. One-third of epileptic patients do not respond to the anticonvulsants discovered with these models. We evaluated a tiered program based on chronic epilepsy and spontaneous seizures, with compounds advancing from high-throughput in vitro models to low-throughput in vivo models. METHODS: Epileptogenesis in organotypic hippocampal slice cultures was quantified by lactate production and lactate dehydrogenase release into culture media as rapid assays for seizure-like activity and cell death, respectively...
December 2016: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28097057/a-gene-expression-study-of-dorso-ventrally-restricted-pigment-pattern-in-adult-fins-of-neolamprologus-meeli-an-african-cichlid-species
#20
Ehsan Pashay Ahi, Kristina M Sefc
Fish color patterns are among the most diverse phenotypic traits found in the animal kingdom. Understanding the molecular and cellular mechanisms that control in chromatophore distribution and pigmentation underlying this diversity is a major goal in developmental and evolutionary biology, which has predominantly been pursued in the zebrafish model system. Here, we apply results from zebrafish work to study a naturally occurring color pattern phenotype in the fins of an African cichlid species from Lake Tanganyika...
2017: PeerJ
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