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https://www.readbyqxmd.com/read/28525384/secretome-analysis-of-breast-cancer-associated-adipose-tissue-to-identify-paracrine-regulators-of-breast-cancer-growth
#1
Lapeire Lore, Hendrix An, Lecoutere Evelyne, Van Bockstal Mieke, Vandesompele Jo, Maynard Dawn, Braems Geert, Van Den Broecke Rudy, Müller Cathérine, Bracke Marc, Cocquyt Véronique, Denys Hannelore, De Wever Olivier
Adipose tissue secretes a plethora of adipokines as evidenced by characterization of subcutaneous and visceral adipose tissue secretomes. However, adipose tissue composition and secretion pattern is depot and disease dependent, influencing the adipose tissue secretome. We investigated the secretome of cancer-associated adipose tissue (CAAT) explants from breast cancer patients and explored its role in breast cancer proliferation. CAAT proteins were identified by LC-MS/MS and human protein antibody arrays and stimulated proliferation of three breast cancer cell lines...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28522313/neurotensin-in-the-nucleus-accumbens-reverses-dopamine-supersensitivity-evoked-by-antipsychotic-treatment
#2
Alice Servonnet, Ellie-Anna Minogianis, Claude Bouchard, Anne-Marie Bédard, Daniel Lévesque, Pierre-Paul Rompré, Anne-Noël Samaha
Long-term exposure to antipsychotics like haloperidol can increase sensitivity to dopamine agonist stimulation. This could contribute to treatment failure and increase relapse to psychosis. Chronic antipsychotic treatment elevates neurotensin levels in the nucleus accumbens (NAc), where the neuropeptide modulates dopamine function by signalling through NTS1 receptors. We hypothesized that increasing neurotensin activity in the NAc attenuates the expression of antipsychotic-induced dopamine supersensitivity, which is indicated by a potentiated psychomotor response to amphetamine...
May 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28522011/vaccination-with-a-live-attenuated-acinetobacter-baumannii-deficient-in-thioredoxin-provides-protection-against-systemic-acinetobacter-infection
#3
Sarah Ainsworth, Patrick M Ketter, Jieh-Juen Yu, Rose C Grimm, Holly C May, Andrew P Cap, James P Chambers, M Neal Guentzel, Bernard P Arulanandam
Multi-drug resistant Acinetobacter baumannii (MDR-Ab), an opportunistic pathogen associated with nosocomial and combat related infections, has a high mortality due to its virulence and limited treatment options. Deletion of the thioredoxin gene (TrxA) from a clinical isolate of MDR-Ab resulted in a 100-fold increase in 50% lethal dose (LD50) in a systemic challenge murine model. Thus, we investigated the potential use of this attenuated strain as a live vaccine against MDR-Ab. Mice were vaccinated by subcutaneous (s...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28518084/subcutaneous-trigeminal-nerve-field-stimulation-for-refractory-facial-pain
#4
Martin Jakobs, Sigrid Schuh-Hofer, Andreas Unterberg, Rezvan Ahmadi
Chronic or neuropathic trigeminal facial pain can be challenging to treat. Neurosurgical procedures should be applied when conservative treatment fails. Neuromodulation techniques for chronic facial pain include deep brain stimulation and motor cortex stimulation, which are complex to perform. Subcutaneous nerve field stimulation is certified for chronic back pain and is the least invasive form of neuromodulation. We applied this technique to treat chronic and neuropathic trigeminal pain as an individual therapy concept...
May 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28513459/effects-of-granulocyte-colony-stimulating-factor-on-opsonin-receptor-expression-and-neutrophil-antibacterial-activity-in-a-mouse-model-of-severe-acute-pancreatitis
#5
Tuo Hong-Fang, Peng Yan-Hui, Bao Lei, Zhang Wan-Xing
The antimicrobial function of neutrophils, which is dependent on opsonin receptors, deteriorates in severe acute pancreatitis (SAP). Granulocyte colony-stimulating factor (G-CSF) putatively enhanced levels of the opsonin receptors CD11b and CD32/16 in healthy human subjects, and provided protection against infection in animal models of SAP. A statistically convincing study of the effect of G-CSF on CD32/16 expression in an SAP model is lacking. We used a mouse model of SAP to investigate the association between G-CSF administration and CD32/16 levels on neutrophils and bacterial translocation...
May 9, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28511798/induction-of-copper-and-iron-in-acute-cold-stimulated-brown-adipose-tissues
#6
Chao Wang, Xiaojuan Liang, Cong Tao, Xiaolei Yao, Yajun Wang, Yanfang Wang, Kui Li
Copper (Cu) and iron (Fe), the enzymatic cofactors required for various biochemical processes, have been recently linked to lipid metabolism. Adipose tissues play central roles in energy balance and whether copper and iron homeostasis is involved in cold-stimulated energy metabolism remain unknown. In this study, the Cu and Fe contents in interscapular brown adipose tissue (BAT) and subcutaneous white adipose tissue (WAT) from mice at different developmental stages were measured. Our results revealed the dynamic changes of Cu and Fe levels during development, suggesting their potential roles in energy homeostasis...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28509443/hemodynamically-stimulated-and-in-vivo-generated-axially-vascularized-soft-tissue-free-flaps-for-closure-of-complex-defects-evaluation-in-a-small-animal-model
#7
Volker J Schmidt, Johanna O Wietbrock, Nico Leibig, Jochen F Hernekamp, Dominic Henn, Christian A Radu, Ulrich Kneser
The arteriovenous (AV) loop model permits the creation of significant volumes of axially vascularized tissue that represents an alternative to conventional free flaps, circumventing their common limitations. However, such AV-loop-based flaps have never before been examined in standardized animal models with respect to their suitability for reconstruction of critical bone exposing defects. In the course of our preliminary studies, we implemented a novel defect model in rats that provides standardized and critical wound conditions and evaluated whether AV-loop-generated flaps are suitable for free microsurgical transfer and closure of composite defects...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28507313/chronic-intrahypothalamic-rather-than-subcutaneous-liraglutide-treatment-reduces-body-weight-gain-and-stimulates-the-melanocortin-receptor-system
#8
K Kaineder, T Birngruber, G Rauter, B Obermüller, J Eichler, J Münzker, W Al-Zoughbi, S I Mautner, S S Torekov, B Hartmann, P Kotzbeck, T R Pieber
BACKGROUND: The GLP-1 receptor agonist liraglutide is marketed for obesity treatment where it induces body weight reduction possibly via the hypothalamus, which regulates energy homeostasis. In animal studies, acute liraglutide treatment triggers satiety, weight loss and activates thermogenesis in adipose tissue. However, the precise mechanisms how liraglutide affects in particular chronic weight loss are still under investigation. OBJECTIVES: We aimed to evaluate whether chronic hypothalamic or chronic subcutaneous administration of liraglutide induces sustained weight loss through altered adipose tissue function and to what extent hypothalamic neuronal appetite regulators are involved in the liraglutide-induced weight loss in healthy lean rats on a normal diet...
April 25, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28506830/antibiotics-induced-gut-microbiota-dysbiosis-promotes-tumor-initiation-via-affecting-apc-th1-development-in-mice
#9
Chengming Xu, Banjun Ruan, Yinghao Jiang, Ting Xue, Zhenyu Wang, Huanyu Lu, Ming Wei, Shan Wang, Zicheng Ye, Dongsheng Zhai, Li Wang, Zifan Lu
Gut microbiota is critical for maintaining body immune homeostasis and thus affects tumor growth and therapeutic efficiency. Here, we investigated the link between microbiota and tumorgenesis in a mice model of subcutaneous melanoma cell transplantation, and explored the underlying mechanism. We found disruption of gut microbiota by pretreating mice with antibiotics promote tumor growth and remodeling the immune compartment within the primary tumor. Indeed, gut microbial dysbiosis reduced the infiltrated mature antigen-presenting cells of tumor, together with lower levels of co-stimulators, such as CD80, CD86 and MHCII, as well as defective Th1 cytokines, including IFNγ, TNFα, IL12p40, and IL12p35...
May 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28506308/attenuating-immune-pathology-using-a-microbial-based-intervention-in-a-mouse-model-of-cigarette-smoke-induced-lung-inflammation
#10
Mark Bazett, Agnieszka Biala, Ryan D Huff, Matthew R Zeglinksi, Philip M Hansbro, Momir Bosiljcic, Hal Gunn, Shirin Kalyan, Jeremy A Hirota
BACKGROUND: Cigarette smoke exposure is the major risk factor for developing COPD. Presently, available COPD treatments focus on suppressing inflammation and providing bronchodilation. However, these options have varying efficacy in controlling symptoms and do not reverse or limit the progression of COPD. Treatments strategies using bacterial-derived products have shown promise in diseases characterized by inflammation and immune dysfunction. This study investigated for the first time whether a novel immunotherapy produced from inactivated Klebsiella (hereafter referred to as KB) containing all the major Klebsiella macromolecules, could attenuate cigarette smoke exposure-induced immune responses...
May 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28497570/-laps-insulin115-a-novel-ultra-long-acting-basal-insulin-with-a-unique-action-profile
#11
Nina Wronkowitz, Thorsten Hartmann, Sven Görgens, Daniela Dietze-Schroeder, Ira Indrakusuma, In Young Choi, Sung Hee Park, Young-Mi Lee, Se Chang Kwon, Yeonjoo Kang, Marcus Hompesch, Juergen Eckel
AIMS: Developing a safe, while more convenient long-acting basal insulin for diabetic patients is still an unmet medical need. Thus, we conducted a comprehensive pre-clinical study of the novel ultra-long acting insulin analogue (LAPS) Insulin115. METHODS: Pharmacokinetic/pharmacodynamic studies comparing (LAPS) Insulin115 with other basal insulins were conducted in (db/db) mice. Insulin signaling in the major target organs was analysed by Western blot after single subcutaneous injection in wildtype male Wistar rats...
May 12, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28494719/levodopa-in-parkinson-s-disease-current-status-and-future-developments
#12
N Tambasco, M Romoli, P Calabresi
Ever since the pioneering reports in the 60s, L-3,4-Dioxyphenylalanine (levodopa) has represented the gold standard for the treatment of Parkinson's Disease (PD). However, long-term levodopa (LD) treatment is frequently associated with fluctuations in motor response, often challenging to resolve, with serious impact on patients quality of life. The pharmacokinetic and pharmacodynamics properties of LD are pivotal to such motor fluctuations: discontinuous drug delivery, short half-life, poor bioavailability, and narrow therapeutic window are all crucial for such fluctuations...
May 10, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28493082/electro-acupuncture-at-zusanli-acupoint-st36-suppresses-inflammation-in-allergic-contact-dermatitis-via-triggering-local-il-10-production-and-inhibiting-p38-mapk-activation
#13
Zhigang Wang, Tao Yi, Man Long, Yisen Gao, Chunhao Cao, Chenwei Huang, Qian Wang, Nina Yin, Zebin Chen
Acupuncture has shown beneficial effect in the treatment of multiple dermatologic conditions including dermatitis, pruritus, urticaria, and hyperhidrosis; however, the detailed mechanisms are still kept unclear. This study aimed to investigate if electro-acupuncture (EA) treatment prevents 2,4-dinitrofluorobenzene (DNFB)-induced allergic contact dermatitis (ACD) in rats and explore its underlying mechanisms. ACD was induced by sensitizing and challenging with DNFB topically. Rats were treated daily following bilateral subcutaneous stimulation of EA at Zusanli acupoint (ST36) for 1 week...
May 10, 2017: Inflammation
https://www.readbyqxmd.com/read/28483802/glucagon-like-peptide-1-receptor-activation-augments-cardiac-output-and-improves-cardiac-efficiency-in-obese-swine-following-myocardial-infarction
#14
Daniel J Sassoon, Johnathan D Tune, Kieren J Mather, Jillian N Noblet, Mackenzie A Eagleson, Abass M Conteh, Joshua T Sturek, Adam G Goodwill
This study tested the hypothesis that glucagon-like peptide-1 therapies improve cardiac contractile function at rest and in response to adrenergic stimulation in obese swine following myocardial infarction. Obese Ossabaw swine were subjected to gradually developing regional coronary occlusion using an ameroid occluder placed around the left anterior descending coronary artery. Animals received subcutaneous injections of saline or liraglutide (0.005-0.015 mg/kg/day) for 30 days following ameroid placement. Cardiac performance was then assessed at rest and in response to sympathomimetic challenge (dobutamine 0...
May 8, 2017: Diabetes
https://www.readbyqxmd.com/read/28476409/differential-behavioral-effects-of-nicotine-in-adult-male-and-female-rats-with-a-history-of-prenatal-methamphetamine-exposure
#15
Boyd Rorabaugh, Sarah Seeley, Mary Evans, Christina Marengo, Manoranjan D'Souza
The goal of the current study was to assess the effects of prenatal methamphetamine (MA)/saline exposure on nicotine-induced stimulant and aversive effects in both male and female adult rats. The aversive effects of nicotine were assessed using the nicotine-induced conditioned taste aversion model (0.4mg/kg, base), while the stimulant effects of nicotine were measured by assessing changes in spontaneous locomotor activity after subcutaneous administration of different doses of nicotine (0, 0.1 & 0.4mg/kg, base)...
May 2, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28470859/zirconium-oxide-and-niobium-oxide-used-as-radiopacifiers-of-a-calcium-silicate-based-material-stimulate-fibroblast-proliferation-and-collagen-formation
#16
G F Silva, J M Guerreiro-Tanomaru, T S da Fonseca, M I B Bernardi, E Sasso-Cerri, M Tanomaru-Filho, P S Cerri
AIM: To evaluate the influence of the addition of microparticulate (micro) and nanoparticulate (nano) zirconium oxide (ZrO2 ) and niobium pentoxide (Nb2 O5 ) to a calcium silicate-based cement (CS) on the subcutaneous healing process in rats compared with MTA-Angelus(™) . METHODOLOGY: In each rat, two polyethylene tubes filled with the following materials: 1) MTA; 2) CS+ZrO2 micro; 3) CS+ZrO2 nano; 4) CS+Nb2 O5 micro or 5) CS+Nb2 O5 nano were implanted subcutaneously; empty polyethylene tubes were used in the Control group...
May 4, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28470672/stimulation-of-vascularization-of-a-subcutaneous-scaffold-applicable-for-pancreatic-islet-transplantation-enhances-immediate-post-transplant-islet-graft-function-but-not-long-term-normoglycemia
#17
Alexandra M Smink, Li Shiri, Daniël H Swart, Don T Hertsig, Bart J de Haan, Jan A A M Kamps, Leendert Schwab, Aart A van Apeldoorn, Eelco de Koning, Marijke M Faas, Jonathan R T Lakey, Paul de Vos
The liver as transplantation site for pancreatic islets is associated with significant loss of islets, which can be prevented by grafting in a prevascularized, subcutaneous scaffold. Supporting vascularization of a scaffold to limit the period of ischemia is challenging and was developed here by applying liposomes for controlled release of angiogenic factors. The angiogenic capacity of platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), acidic fibroblast growth factor (aFGF), and basic FGF (bFGF) were compared in a tube formation assay...
May 3, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28469599/the-role-of-thyrotropin-receptor-activation-in-adipogenesis-and-modulation-of-fat-phenotype
#18
Mohd Shazli Draman, Michael Stechman, David Scott-Coombes, Colin M Dayan, Dafydd Aled Rees, Marian Ludgate, Lei Zhang
Evidence from clinical and experimental data suggests that thyrotropin receptor (TSHR) signaling is involved in energy expenditure through its impact on white adipose tissue (WAT) and brown adipose tissue (BAT). TSHR expression increases during mesenchymal stem cell (MSC) differentiation into fat. We hypothesize that TSHR activation [TSHR*, elevated thyroid-stimulating hormone, thyroid-stimulating antibodies (TSAB), or activating mutation] influences MSC differentiation, which contributes to body composition changes seen in hypothyroidism or Graves' disease (GD)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28468915/combining-dna-vaccine-and-aida-1-in-attenuated-salmonella-activates-tumor-specific-cd4-and-cd8-t-cell-responses
#19
Yu Mei, Lixiang Zhao, Yonghao Liu, Huanle Gong, Yuan Song, Lei Lei, Ying Zhu, Ziqi Jin, Shoubao Ma, Bo Hu, Qing Sun, Haiyan Liu
Stimulation of tumor-specific responses in both CD4(+) and CD8(+) T cells has been a challenge for effective tumor vaccines. We designed a vaccine vector containing the AIDA-1 autotransporter and DNA vaccine elements, generating a murine melanoma vaccine that was delivered by the attenuated Salmonella strain SL7207. Growth of murine subcutaneous melanoma was significantly inhibited by intranasal immunization with the Salmonella tumor vaccine. The vaccine activated tumor-specific CD4(+) and CD8(+) T-cell responses, with increased T-cell proliferation, tumor antigen-specific Th1 cytokine production, increased percentages of tetramer positive cells, and cytotoxicity...
May 3, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28468507/the-reduction-in-inflammation-and-impairment-in-wound-healing-by-using-strontium-chloride-hexahydrate
#20
Sibel Berksoy Hayta, Kasım Durmuş, Emine Elif Altuntaş, Esin Yıldız, Mehmet Hisarcıklıo, Melih Akyol
BACKGROUND: Numerous growth factors, cytokine, mitogen, and chemotactic factors are involved in wound healing. Even though inflammation is important for stimulation of proliferative phase, excessive inflammation also causes impairment in wound healing. Strontium salts suppress keratinocyte-induced TNF-alpha and interleukin 1 and 6 in in-vitro cultures. This study was conducted to determine the effects of administration of topical strontium chloride hexahydrate on wound healing through TNF-alpha and TGF-beta in surgical wound healing model of in-vivo rat skin...
May 3, 2017: Cutaneous and Ocular Toxicology
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