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https://www.readbyqxmd.com/read/28449555/capsanthin-inhibits-both-adipogenesis-in-3t3-l1-preadipocytes-and-weight-gain-in-high-fat-diet-induced-obese-mice
#1
Sung Jun Jo, Jeung Won Kim, Hye Ok Choi, Jung Hwan Kim, Hyung Joong Kim, Sun Hee Woo, Byung Hoon Han
Adipogenesis in murine preadipocyte 3T3L-1 has been used as a model system to study anti-obese bioactive molecules. During adipogenesis in 3T3-L1 preadipocytes, we found that capsanthin inhibited adipogenesis (IC₅₀; 2.5 μM) and also showed lipolytic activity in differentiated adipocytes from the preadipocytes (ED₅₀; 872 nM). We identified that the pharmacological activity of capsanthin on adipogenesis in 3T3-L1 was mainly due to its adrenoceptor-β₂-agonistic activity. In high-fat diet animal model study, capsanthin significantly enhanced spontaneous locomotive activities together with progressive weight-loss...
May 1, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28449552/effect-of-proparacaine-in-a-mouse-model-of-allergic-rhinitis
#2
Hwan Soo Kim, Sulmui Won, Eu Kyoung Lee, Yoon Hong Chun, Jong-Seo Yoon, Jin Tack Kim, Hyun Hee Kim
Objectives: Lidocaine, a local anaesthetic is a treatment option in uncontrolled asthma due to its immunomodulatory effects. In the present study, proparacaine (PPC), a derivative of lidocaine was examined for its therapeutic application in a mouse model of allergic rhinitis. Methods: The mice were grouped into 4 groups: control group, allergic rhinitis (AR) group, ciclesonide (CIC) group, and PPC group. Nasal symptom scores, eosinophil counts, goblet cell counts, and mast cells counts in the nasal mucosa were measured...
April 28, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/28449397/differential-proteome-profiling-in-the-hippocampus-of-amnesic-mice
#3
Meghraj Singh Baghel, Mahendra Kumar Thakur
Amnesia or memory loss is associated with brain aging and several neurodegenerative pathologies including Alzheimer's disease (AD). This can be induced by a cholinergic antagonist scopolamine, but the underlying molecular mechanism is poorly understood. The present study of proteome profiling in the hippocampus could provide conceptual insights into the molecular mechanisms involved in amnesia. To reveal this, mice were administered scopolamine to induce amnesia and memory impairment was validated by novel object recognition test...
April 27, 2017: Hippocampus
https://www.readbyqxmd.com/read/28449374/genetic-variability-in-adenosine-deaminase-like-contributes-to-variation-in-alcohol-preference-in-mice
#4
Heidi M B Lesscher, Alexis Bailey, Louk J M J Vanderschuren
BACKGROUND: A substantial part of the risk for alcohol use disorder (AUD) is determined by genetic factors. We previously used chromosome substitution (CSS) mice, to identify a QTL for alcohol preference on mouse chromosome 2. The aim of this study was to identify candidate genes within this QTL that confer the risk for alcohol preference. METHODS: In order to delineate the neurobiological underpinnings of alcohol consumption, we expanded on the QTL approach to identify candidate genes for high alcohol preference in mice...
April 27, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28449314/characterization-of-the-anti-cd22-targeted-therapy-moxetumomab-pasudotox-for-b-cell-precursor-acute-lymphoblastic-leukemia
#5
Ichiko Kinjyo, Ksenia Matlawska-Wasowska, Xiaoru Chen, Noel R Monks, Patricia Burke, Stuart S Winter, Bridget S Wilson
Moxetumomab pasudotox is a second-generation recombinant immunotoxin against CD22 on B-cell lineages. Antileukemic activity has been demonstrated in children with chemotherapy-refractory B-cell precursor acute lymphoblastic leukemia (BCP-ALL), with variable responses. Here, we report in vitro and in vivo evaluation of moxetumomab pasudotox treatment of human cell lines and patient-derived cells as a preliminary study to understand characteristics of sensitivity to treatment. Binding, internalization, and apoptosis were evaluated using fluorescently tagged moxetumomab pasudotox...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449218/development-and-pharmacologic-characterization-of-the-rat-6-hz-model-of-partial-seizures
#6
Cameron S Metcalf, Peter J West, Kyle E Thomson, Sharon F Edwards, Misty D Smith, H S White, Karen S Wilcox
OBJECTIVE: The mouse 6 Hz model of psychomotor seizures is a well-established and commonly used preclinical model for antiseizure drug (ASD) discovery. Despite its widespread use both in the identification and differentiation of novel ASDs in mice, a corresponding assay in rats has not been developed. We established a method for 6 Hz seizure induction in rats, with seizure behaviors similar to those observed in mice including head nod, jaw clonus, and forelimb clonus. METHODS: A convulsive current that elicits these seizure behaviors in 97% of rats (CC97 ) was determined using a Probit analysis...
April 27, 2017: Epilepsia
https://www.readbyqxmd.com/read/28449192/anti-inflammatory-effects-of-pegylated-human-adrenomedullin-in-a-mouse-dss-induced-colitis-model
#7
Sayaka Nagata, Motoo Yamasaki, Kazuo Kitamura
Preclinical Research Human adrenomedullin (hAM), a hypotensive peptide, also has anti-inflammatory effects. hAM can reduce the severity of the dextran sulphate sodium (DSS)- and 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis in animal models. Furthermore, in a clinical study, hAM treatment reduced the Disease Activity Index in ulcerative colitis. However, these therapeutic effects required continuous administration of hAM as the half-life of native hAM is quite short in blood. To resolve this problem, hAM N-terminal was conjugated with two kinds of polyethylene glycol (PEG); 5 kDa PEG or 60 kDa PEG (5 kDa PEG-hAM and 60 kDa PEG-hAM respectively)...
April 27, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28449121/tri-directional-anaphases-as-a-novel-chromosome-segregation-defect-in-human-oocytes
#8
Jenna Haverfield, Nicola L Dean, Diana Nöel, Gaudeline Rémillard-Labrosse, Veronique Paradis, Isaac-Jacques Kadoch, Greg FitzHarris
STUDY QUESTION: What are the chromosome segregation errors in human oocyte meiosis-I that may underlie oocyte aneuploidy? SUMMARY ANSWER: Multiple modes of chromosome segregation error were observed, including tri-directional anaphases, which we attribute to loss of bipolar spindle structure at anaphase-I. WHAT IS KNOWN ALREADY: Oocyte aneuploidy is common and associated with infertility, but mechanistic information on the chromosome segregation errors underlying these defects is scarce...
April 25, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28449094/hepatic-tm6sf2-overexpression-affects-cellular-apob-trafficking-plasma-lipid-levels-hepatic-steatosis-and-atherosclerosis
#9
Nicole Ehrhardt, Michael E Doche, Shuang Chen, Hui Z Mao, Meghan T Walsh, Candy Bedoya, Maha Guindi, Weidong Xiong, Joseph Ignatius Irudayam, Jahangir Iqbal, Sebastien Fuchs, Samuel W French, M Mahmood Hussain, Moshe Arditi, Vaithilingaraja Arumugaswami, Miklós Péterfy
The human TM6SF2 gene has been implicated in plasma lipoprotein metabolism, alcoholic and non-alcoholic fatty liver disease and myocardial infarction in multiple genome-wide association studies. To investigate the role of Tm6sf2 in metabolic homeostasis, we generated mice with elevated expression using adeno-associated virus (AAV)-mediated gene delivery. Hepatic overexpression of mouse Tm6sf2 resulted in phenotypes previously observed in Tm6sf2-deficient mice including reduced plasma lipid levels, diminished hepatic TG secretion and increased hepatosteatosis...
April 25, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28449086/a-coordinated-action-of-blood-borne-and-brain-insulin-like-growth-factor-i-in-the-response-to-traumatic-brain-injury
#10
A Santi, L Genis, I Torres Aleman
In response to injury, the brain produces different neuroprotective molecules, such as insulin-like growth factor I (IGF-I). However, IGF-I is also taken up by the brain from the circulation in response to physiological stimuli. Herein, we analyzed in mice the relative contribution of circulating and locally produced IGF-I to increased brain IGF-I levels after insult. Traumatic brain injury (TBI) induced by a controlled impact resulted in increased IGF-I levels in the vicinity of the lesion, but mice with low serum IGF-I showed significantly lower increases...
April 26, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28449024/secretagogin-is-expressed-by-developing-neocortical-gabaergic-neurons-in-humans-but-not-mice-and-increases-neurite-arbor-size-and-complexity
#11
Chandrasekhar S Raju, Julien Spatazza, Amelia Stanco, Phillip Larimer, Shawn F Sorrells, Kevin W Kelley, Cory R Nicholas, Mercedes F Paredes, Jan H Lui, Andrea R Hasenstaub, Arnold R Kriegstein, Arturo Alvarez-Buylla, John L Rubenstein, Michael C Oldham
The neocortex of primates, including humans, contains more abundant and diverse inhibitory neurons compared with rodents, but the molecular foundations of these observations are unknown. Through integrative gene coexpression analysis, we determined a consensus transcriptional profile of GABAergic neurons in mid-gestation human neocortex. By comparing this profile to genes expressed in GABAergic neurons purified from neonatal mouse neocortex, we identified conserved and distinct aspects of gene expression in these cells between the species...
April 26, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28448997/altered-expression-of-hippo-signaling-pathway-molecules-in-intrahepatic-cholangiocarcinoma
#12
Keishi Sugimachi, Miki Nishio, Shinichi Aishima, Yosuke Kuroda, Tomohiro Iguchi, Hisateru Komatsu, Hidenari Hirata, Shotaro Sakimura, Hidetoshi Eguchi, Yuki Bekki, Kenji Takenaka, Yoshihiko Maehara, Akira Suzuki, Koshi Mimori
OBJECTIVE: MOB1, a core component of the Hippo signaling pathway, suppresses cell proliferation, and MOB1 liver conditional knockout mice develop intrahepatic cholangiocarcinoma (ICC). However, its clinical significance in human ICC has not been established. The aim of this study was to characterize protein levels and the role of Hippo and TGF pathways in ICCs. METHODS: The protein levels of yes-associated protein 1 (YAP1), MOB1, Smad2, and TGFβ2 in 88 ICC cases were analyzed...
April 28, 2017: Oncology
https://www.readbyqxmd.com/read/28448991/participation-of-antidiuretic-hormone-adh-in-asthma-exacerbations-induced-by-psychological-stress-via-pka-pkc-signal-pathway-in-airway-related-vagal-preganglionic-neurons-avpns
#13
Lili Hou, Lei Zhu, Min Zhang, Xingyi Zhang, Guoqing Zhang, Zhenwei Liu, Qiang Li, Xin Zhou
AIMS: Present study was performed to examine whether ADH was implicated in psychological stress asthma and to explore the underlying molecular mechanism. METHODS: We not only examined ADH levels in the cerebrospinal fluid (CSF) via radioimmunoassay, but also measured ADH receptor (ADHR) expression in airway-related vagal preganglionic neurons (AVPNs) through real-time PCR in all experimental mice. Western blotting was performed to evaluate the relationship between ADH and PKA/PKC in psychological stress asthma...
April 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28448973/downregulations-of-cd36-and-calpain-1-inflammation-and-atherosclerosis-by-simvastatin-in-apolipoprotein-e-knockout-mice
#14
Meihui Yin, Qianqian Liu, Lan Yu, Yueyan Yang, Meili Lu, Hongxin Wang, Duosheng Luo, Xianglu Rong, Futian Tang, Jiao Guo
BACKGROUND: In the previous in vitro study, we found that simvastatin decreased the protein expression of CD36, the scavenger receptor, and calpain-1, the Ca2+-sensitive cysteine protease, in oxidized low-density lipoprotein (oxLDL)-treated macrophages. In this in vivo study, we investigated whether simvastatin downregulates the expression of CD36 and calpain-1 and inhibits the inflammation and atherosclerosis in apolipoprotein E knockout (ApoE KO) mice. METHODS: Twenty male 6-week-old ApoE KO mice were divided into 2 groups: the ApoE KO group and the ApoE KO + simvastatin (ApoE KO + Sim) group...
April 28, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28448958/evaluation-of-f8-tnf-%C3%AE-in-models-of-early-and-progressive-metastatic-osteosarcoma
#15
Bernhard Robl, Sander Martijn Botter, Aleksandar Boro, Daniela Meier, Dario Neri, Bruno Fuchs
The targeted delivery of tumor necrosis factor-α (TNF-α) with antibodies specific to splice isoforms of fibronectin [e.g., F8-TNF, specific to the extra-domain A (EDA) domain of fibronectin] has already shown efficacy against experimental sarcomas but has not yet been investigated in orthotopic sarcomas. Here, we investigated F8-TNF in a syngeneic K7 M2-derived orthotopic model of osteosarcoma as a treatment against pulmonary metastases, the most frequent cause of osteosarcoma-related death. Immunofluorescence on human osteosarcoma tissue confirmed the presence of EDA in primary tumors (PTs) as well as metastases...
April 24, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28448946/oral-administration-of-methysticin-improves-cognitive-deficits-in-a-mouse-model-of-alzheimer-s-disease
#16
Athanassios Fragoulis, Stephanie Siegl, Markus Fendt, Sandra Jansen, Ulf Soppa, Lars-Ove Brandenburg, Thomas Pufe, Joachim Weis, Christoph Jan Wruck
INTRODUCTION: There is increasing evidence for the involvement of chronic inflammation and oxidative stress in the pathogenesis of Alzheimer's disease (AD). Nuclear factor erythroid 2-related factor 2 (Nrf2) is an anti-inflammatory transcription factor that regulates the oxidative stress defense. Our previous experiments demonstrated that kavalactones protect neuronal cells against Amyloid β (Aβ)-induced oxidative stress in vitro by Nrf2 pathway activation. Here, we tested an in vivo kavalactone treatment in a mouse model of AD...
April 19, 2017: Redox Biology
https://www.readbyqxmd.com/read/28448910/exposure-to-2-2-4-4-tetrabromodiphenyl-ether-at-late-gestation-modulates-placental-signaling-molecules-in-the-mouse-model
#17
Yun Zhu, Yan Qin Tan, Lai K Leung
Polybrominated diphenyl ethers (PBDEs) are flame retardants generally employed in manufacturing household items. Surface water may remove and carry these chemicals to the drainage upon disposal of the items, and ultimately the chemicals enter our food chain. 2,2',4,4'-Tetrabromodiphenyl ether (BDE-47) is a PBDE congener commonly found in contaminated seafood. The placenta is the site of nutrient exchange and is responsible for reproductive hormone secretion during pregnancy. In the present study, pregnant ICR mice were given p...
April 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28448867/immuno-modulatory-and-cellular-antioxidant-activities-of-%C3%AE%C2%BA-selenocarrageenan-in-combination-with-epirubicin-in-h22-hepatoma-bearing-mice
#18
Na Ling, Xiaojun Zhou, Yubin Ji, Wenlan Li, Chenfeng Ji, Zheng Qi
BACKGROUND: Human hepatocellular carcinoma (HCC) has a high rate of tumor recurrence and metastasis, resulting in shortened survival time. The aim of this study is to evaluate the synergistic anti-tumor effects and underlying mechanism of κ-selenocarrageenan (KSC) in combination with the chemotherapy drug epirubicin (EPI) in H22 tumor-bearing mice. METHODS: Hepatocellular carcinoma H22 cells were implanted into mice. After the transplants were successfully established, the animals were divided into four groups: namely the control group, the KSC group, the EPI group and the KSC+EPI group...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28448819/construction-of-three-dimensional-vascularized-functional-human-liver-tissue-using-a-layer-by-layer-cell-coating-technique
#19
Kazuki Sasaki, Takami Akagi, Tadafumi Asaoka, Hidetoshi Eguchi, Yasunari Fukuda, Yoshifumi Iwagami, Daisaku Yamada, Takehiro Noda, Hiroshi Wada, Kunihito Gotoh, Koichi Kawamoto, Yuichiro Doki, Masaki Mori, Mitsuru Akashi
The creation of artificial liver tissue is an active area of research due to the shortage of donors for liver transplantation. Here we investigated whether a simple and efficient cell coating technique developed in our laboratory could be used to generate functional vascularized liver tissue. This technique creates three-dimensional tissue by loading cells sterically onto other cells that have been coated with layer-by-layer (LbL) nanofilms of fibronectin and gelatin, two extracellular matrix proteins. We used this technique to construct homogenous, dense, well-vascularized liver tissue from cryopreserved human primary hepatocytes, human umbilical vein endothelial cells, and normal human dermal fibroblasts...
February 28, 2017: Biomaterials
https://www.readbyqxmd.com/read/28448816/protective-effect-of-artemisinin-on-chronic-alcohol-induced-liver-damage-in-mice
#20
Xiaoyan Zhao, Liqing Wang, Hao Zhang, Duoduo Zhang, Zhihao Zhang, Jie Zhang
The liver disease related to chronic alcohol consumption is one of the leading causes of death for alcoholics. The efficient drug to ameliorate the alcoholic liver injury was needed urgently. The present study was performed to investigate whether artemisinin possessed the protective effect against chronic alcohol consumption. 50 male Kunming mice were divided into 5 groups: control group (C): 10ml/kg saline+10ml/kg saline, alcohol group (A): 10ml/kg 56%(v/v) alcohol+10ml/kg saline, low dose group of artemisinin (L): 10ml/kg 56%(v/v) alcohol+30mg/kg/day artemisinin, medium dose group of artemisinin (M): 10ml/kg 56%(v/v) alcohol+60mg/kg/day artemisinin, high dose group of artemisinin (H): 10ml/kg 56%(v/v) alcohol+120mg/kg/day artemisinin...
April 13, 2017: Environmental Toxicology and Pharmacology
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