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https://www.readbyqxmd.com/read/29140729/gene-expression-and-gene-associations-during-the-development-of-heart-failure-with-preserved-ejection-fraction-in-the-dahl-salt-sensitive-model-of-hypertension
#1
Jeffrey Yim, Hyokeun Cho, Simon W Rabkin
Gene expression and associations were examined in a model of heart failure with preserved ejection fraction (HFpEF), a condition with minimal effective treatment. Genes with at least two studies showing significant changes in Dahl rat with heart failure were examined by meta-analysis. Significantly increased in expression were iNOS, p47phox, ADM, ANP, OPN, ACE, MCP-1, GP91PHOX, ICAM-1, TGF-β1, CTGF, ET-1, p22phox, ETB, BNP, ETA, MMP13, Col1a1, MMP2, TIMP1, Col3a1, Il-1β, β-MHC, ECE1, MMP14, AGT, and MMP9...
November 15, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29127315/human-gingiva-derived-mesenchymal-stem-cells-ameliorate-streptozoticin-induced-t1dm-in-mice-via-suppression-of-t-effector-cells-and-up-regulating-treg-subsets
#2
Wei Zhang, Li Zhou, Junlong Dang, Ximei Zhang, Julie Wang, Yanming Chen, Jichao Liang, Dongqing Li, Jilin Ma, Jia Yuan, Weiwen Chen, Homayoun H Zadeh, Nancy Olsen, Song Guo Zheng
There is yet no cure for type 1 diabetes (T1DM) so far. A significant body of evidence has demonstrated that bone marrow-derived mesenchymal stem cells (BMSCs) showed great potential in controlling T1DM. But there exists much difficulty in using BMSCs as a clinical therapy. We here test whether a new population of mesenchymal stem cells from human gingiva (GMSCs), which has many advantages over BMSCs, can delay or prevent progress of T1DM. GMSCs were adoptively transferred to multiple low-dose streptozotocin (STZ)-induced T1DM...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29124488/t-helper-1-immune-response-in-metastatic-lymph-nodes-of-pancreatic-ductal-adenocarcinoma-a-marker-for-prolonged-survival
#3
Eran Nizri, Neta Sternbach, Shoshi Bar-David, Amir Ben-Yehuda, Fabian Gerstenhaber, Tali Ofir, Ido Wolf, Gilad Weiner, Guy Lahat, Joseph Klausner
BACKGROUND: Although lymph node (LN) metastases is considered a grave prognostic sign in pancreatic ductal adenocarcinoma (PDAC), patients with positive lymph nodes (PLN) constitute a heterogeneous group. Our purpose was to identify morphological and immune parameters in the primary tumor and in PLN of resected PDAC patients, which could further stratify these patients to different subgroups. METHODS: We retrospectively evaluated histological and immunohistochemical characteristics of 66 patients with PDAC who were operated at our institution...
November 9, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29119312/when-signalling-goes-wrong-pathogenic-variants-in-structural-and-signalling-proteins-causing-cardiomyopathies
#4
Mehroz Ehsan, He Jiang, Kate L Thomson, Katja Gehmlich
Cardiomyopathies are a diverse group of cardiac disorders with distinct phenotypes, depending on the proteins and pathways affected. A substantial proportion of cardiomyopathies are inherited and those will be the focus of this review article. With the wide application of high-throughput sequencing in the practice of clinical genetics, the roles of novel genes in cardiomyopathies are recognised. Here, we focus on a subgroup of cardiomyopathy genes [TTN, FHL1, CSRP3, FLNC and PLN, coding for Titin, Four and a Half LIM domain 1, Muscle LIM Protein, Filamin C and Phospholamban, respectively], which, despite their diverse biological functions, all have important signalling functions in the heart, suggesting that disturbances in signalling networks can contribute to cardiomyopathies...
November 8, 2017: Journal of Muscle Research and Cell Motility
https://www.readbyqxmd.com/read/29097999/clostridium-butyricum-cgmcc0313-1-protects-against-autoimmune-diabetes-by-modulating-intestinal-immune-homeostasis-and-inducing-pancreatic-regulatory-t-cells
#5
Lingling Jia, Kai Shan, Li-Long Pan, Ninghan Feng, Zhuwu Lv, Yajun Sun, Jiahong Li, Chengfei Wu, Hao Zhang, Wei Chen, Julien Diana, Jia Sun, Yong Q Chen
Recent evidence indicates that indigenous Clostridium species induce colonic regulatory T cells (Tregs), and gut lymphocytes are able to migrate to pancreatic islets in an inflammatory environment. Thus, we speculate that supplementation with the well-characterized probiotics Clostridium butyricum CGMCC0313.1 (CB0313.1) may induce pancreatic Tregs and consequently inhibit the diabetes incidence in non-obese diabetic (NOD) mice. CB0313.1 was administered daily to female NOD mice from 3 to 45 weeks of age. The control group received an equal volume of sterile water...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29079220/himatanthus-drasticus-apocynaceae-latex-reduces-oxidative-stress-and-modulates-cd4-cd8-foxp3-and-hsp-60-expressions-in-sarcoma-180-bearing-mice
#6
Glauco Jonas Lemos Santos, Emanuele Silva Oliveira, Ana Débora Nunes Pinheiro, Patricia Marçal da Costa, José Claudio Carneiro de Freitas, Francisco Glauco de Araújo Santos, Fernanda Maria Machado Maia, Selene Maia de Morais, Diana Célia Sousa Nunes-Pinheiro
ETHNOPHARMACOLOGICAL RELEVANCE: In Brazil, the latex of Himatanthus drasticus is used to treat inflammation, wound healing and cancer. The present study evaluated the antitumoral potential of H. drasticus latex (HdCL) in Sarcoma 180-bearing mice (S180). MATERIALS, METHODS: HdCL was obtained in Crato-CE, Brazil. Qualitative phytochemicals assays, nuclear magnetic resonance (NMR) and microbiological analyzes were performed. Swiss mice were divided into six groups, according to tumor forms: 1) ascitic model, GI (Control; 0...
October 24, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29077981/tissue-specific-differences-in-immune-cell-subsets-located-in-the-naso-oropharyngeal-associated-lymphoid-tissues
#7
Maria Bankvall, Mats Jontell, Agnes Wold, Sofia Östman
Defining the immune cells within the naso-oropharyngeal-associated lymphoid tissues would promote the development of efficient oral and nasal delivered immunotherapies. The aim was to compare murine antigen-presenting cells (APCs) and T-cell subsets in the nose-associated lymphoid tissues (NALT), cervical lymph nodes (CLN), mesenteric lymph nodes (MLN) and peripheral lymph nodes (PLN) using flow cytometry and in vitro proliferation assays. Overall, the NALT contained a higher proportion of APCs and a lower proportion of T cells compared to the CLN, MLN, and PLN...
October 27, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/29068413/phospholamban-is-downregulated-by-pvhl-mediated-degradation-through-oxidative-stress-in-failing-heart
#8
Shunichi Yokoe, Michio Asahi
The E3 ubiquitin ligase, von Hippel-Lindau (VHL), regulates protein expression by polyubiquitination. Although the protein VHL (pVHL) was reported to be involved in the heart function, the underlying mechanism is unclear. Here, we show that pVHL was upregulated in hearts from two types of genetically dilated cardiomyopathy (DCM) mice models. In comparison with the wild-type mouse, both DCM mice models showed a significant reduction in the expression of phospholamban (PLN), a potent inhibitor of sarco(endo)plasmic reticulum Ca(2+)-ATPase, and enhanced interaction between pVHL and PLN...
October 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29059180/diverse-type-2-diabetes-genetic-risk-factors-functionally-converge-in-a-phenotype-focused-gene-network
#9
Cynthia Sandor, Nicola L Beer, Caleb Webber
Type 2 Diabetes (T2D) constitutes a global health burden. Efforts to uncover predisposing genetic variation have been considerable, yet detailed knowledge of the underlying pathogenesis remains poor. Here, we constructed a T2D phenotypic-linkage network (T2D-PLN), by integrating diverse gene functional information that highlight genes, which when disrupted in mice, elicit similar T2D-relevant phenotypes. Sensitising the network to T2D-relevant phenotypes enabled significant functional convergence to be detected between genes implicated in monogenic or syndromic diabetes and genes lying within genomic regions associated with T2D common risk...
October 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29057374/a-sarcoplasmic-reticulum-localized-protein-phosphatase-regulates-phospholamban-phosphorylation-and-promotes-ischemia-reperfusion-injury-in-the-heart
#10
Toru Akaike, Na Du, Gang Lu, Susumu Minamisawa, Yibin Wang, Hongmei Ruan
Phospholamban (PLN) is a key regulator of sarcolemma calcium uptake in cardiomyocyte, its inhibitory activity to SERCA is regulated by phosphorylation. PLN hypophosphorylation is a common molecular feature in failing heart. The current study provided evidence at molecular, cellular and whole heart levels to implicate a sarcolemma membrane targeted protein phosphatase, PP2Ce, as a specific and potent PLN phosphatase. PP2Ce expression was elevated in failing human heart and induced acutely at protein level by β -adrenergic stimulation or oxidative stress in cardiomyocytes...
March 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/29053672/sample-extraction-and-simultaneous-chromatographic-quantitation-of-doxorubicin-and-mitomycin-c-following-drug-combination-delivery-in-nanoparticles-to-tumor-bearing-mice
#11
Rui Xue Zhang, Tian Zhang, King Chen, Ji Cheng, Paris Lai, Andrew M Rauth, K Sandy Pang, Xiao Yu Wu
Combination chemotherapy is frequently used in the clinic for cancer treatment; however, associated adverse effects to normal tissue may limit its therapeutic benefit. Nanoparticle-based drug combination has been shown to mitigate the problems encountered by free drug combination therapy. Our previous studies have shown that the combination of two anticancer drugs, doxorubicin (DOX) and mitomycin C (MMC), produced a synergistic effect against both murine and human breast cancer cells in vitro. DOX and MMC co-loaded polymer-lipid hybrid nanoparticles (DMPLN) bypassed various efflux transporter pumps that confer multidrug resistance and demonstrated enhanced efficacy in breast tumor models...
October 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29037982/early-effects-of-epac-depend-on-the-fine-tuning-of-the-sarcoplasmic-reticulum-ca-2-handling-in-cardiomyocytes
#12
N Lezcano, J I E Mariángelo, L Vittone, X H T Wehrens, M Said, C Mundiña-Weilenmann
In cardiac muscle, signaling through cAMP governs many fundamental cellular functions, including contractility, relaxation and automatism. cAMP cascade leads to the activation of the classic protein kinase A but also to the stimulation of the recently discovered exchange protein directly activated by cAMP (Epac). The role of Epac in the regulation of intracellular Ca(2+) homeostasis and contractility in cardiac myocytes is still matter of debate. In this study we showed that the selective Epac activator, 8-(4-chloro-phenylthio)-2'-O-methyladenosine-3', 5'-cyclic monophosphate (8-CPT), produced a positive inotropic effect when adult rat cardiac myocytes were stabilized at low [Ca(2+)]o (0...
October 14, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29027118/genetic-variation-of-pln-loci-among-probiotic-lactobacillus-plantarum-group-strains-with-antioxidant-and-cholesterol-lowering-ability
#13
Sundru Manjulata Devi, Prakash M Halami
In the present study, 14 different plantaricin-encoding genes of pln loci were studied and compared to available sequences from public domain database of probiotic Lactobacillus plantarum strains. Based upon the presence and absence of selected genes, pln locus was grouped into eight clusters. Further, quantitative real-time PCR (qRT-PCR) analysis for seven genes has discriminated the complex pln locus into five types which includes WCFS1 (in Lactobacillus plantarum subsp. plantarum MCC 2976 and MCC 2974 and Lactobacillus paraplantarum MCC 2978), closely related to J51 (in Lb...
October 13, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29017076/determination-of-the-phytochemical-composition-of-jingning-fang-and-the-in-vivo-pharmacokinetics-of-its-metabolites-in-rat-plasma-by-uplc-ms-ms
#14
Chunjing Yang, XingBin Yin, Xiaoxv Dong, Xin Zhang, Longtai You, Wenping Wang, Junhong Wang, Qinghe Chen, Jian Ni
Jingning fang (JNF) is an effective Traditional Chinese Medicine (TCM) which is used for the treatment of Attention Deficit Hyperactivity Disorder (ADHD). To clarify the bioactive constituents of JNF, a Thermo Q Exactive™ Plus Orbitrap™ mass spectrometer was used in this study. More than 127 chemical compounds were isolated and identified tentatively in the JNF extract, while 42 prototype constituents with 4 potential metabolites were identified tentatively in rat plasma. A method for simultaneous determination of polygalaxanthone III (PAIII), sibiricose A5 (A5), sibiricose A6 (A6), 3, 6'-disinapoyl sucrose (3,6'-DISS), tenuifoliside C (TEC), tenuifolin B (TNB), verbascoside (VCE), heterophyllin B (HEB) and schisandrin (SCH) in rat was developed and validated using polydatin (PLN) and psoralen (PSN) as internal standards...
November 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28956689/lymphatic-reconnection-and-restoration-of-lymphatic-flow-by-nonvascularized-lymph-node-transplantation-real-time-fluorescence-imaging-using-indocyanine-green-and-fluorescein-isothiocyanate-dextran
#15
Taku Maeda, Yuhei Yamamoto, Daisuke Iwasaki, Toshihiko Hayashi, Emi Funayama, Akihiko Oyama, Naoki Murao, Hiroshi Furukawa
BACKGROUND: Lymph node transplantation is being increasingly recognized as a method of reconstruction of the lymphatic system for the treatment of lymphedema. However, the mechanisms regulating the connections between the lymphatic vessels and the lymph nodes remain poorly understood. The objective of this study was to examine whether removal of a popliteal lymph node (PLN) could result in rerouting of lymph flow and whether a single transplanted nonvascularized lymph node could reconnect with a lymphatic vessel and restore lymph flow...
September 28, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28955223/ca-2-calmodulin-dependent-protein-kinase-ii-and-androgen-signaling-pathways-modulate-mef2-activity-in-testosterone-induced-cardiac-myocyte-hypertrophy
#16
Javier Duran, Daniel Lagos, Mario Pavez, Mayarling F Troncoso, Sebastián Ramos, Genaro Barrientos, Cristian Ibarra, Sergio Lavandero, Manuel Estrada
Testosterone is known to induce cardiac hypertrophy through androgen receptor (AR)-dependent and -independent pathways, but the molecular underpinnings of the androgen action remain poorly understood. Previous work has shown that Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) and myocyte-enhancer factor 2 (MEF2) play key roles in promoting cardiac myocyte growth. In order to gain mechanistic insights into the action of androgens on the heart, we investigated how testosterone affects CaMKII and MEF2 in cardiac myocyte hypertrophy by performing studies on cultured rat cardiac myocytes and hearts obtained from adult male orchiectomized (ORX) rats...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28943397/can-standardized-pathology-examination-increase-the-lymph-node-yield-following-laparoscopic-distal-pancreatectomy-for-ductal-adenocarcinoma
#17
Mushegh A Sahakyan, Sven P Haugvik, Bård I Røsok, Airazat M Kazaryan, Dejan Ignjatovic, Trond Buanes, Knut J Labori, Caroline S Verbeke, Bjørn Edwin
BACKGROUND: Lymph node yield (LNY) is an indicator of oncological adequacy of surgery in patients with pancreatic ductal adenocarcinoma (PDAC). Our hypothesis is that standardized pathology examination (SPE) aimed at accurate staging can increase the LNY without changing surgical technique. METHODS: After the introduction of SPE for distal pancreatosplenectomy specimens at Oslo University Hospital, prospective data were collected on patients with PDAC undergoing laparoscopic distal pancreatosplenectomy (LDP)...
September 21, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28939224/phase-1-2-dose-escalation-study-of-the-use-of-intensity-modulated-radiation-therapy-to-treat-the-prostate-and-pelvic-nodes-in-patients-with-prostate-cancer
#18
Miguel Reis Ferreira, Atia Khan, Karen Thomas, Lesley Truelove, Helen McNair, Annie Gao, Chris C Parker, Robert Huddart, Margaret Bidmead, Ros Eeles, Vincent Khoo, Nicholas J van As, Vibeke N Hansen, David P Dearnaley
PURPOSE: To investigate the feasibility of dose escalation and hypofractionation of pelvic lymph node intensity modulated radiation therapy (PLN-IMRT) in prostate cancer (PCa). METHODS AND MATERIALS: In a phase 1/2 study, patients with advanced localized PCa were sequentially treated with 70 to 74 Gy to the prostate and dose-escalating PLN-IMRT at doses of 50 Gy (cohort 1), 55 Gy (cohort 2), and 60 Gy (cohort 3) in 35 to 37 fractions. Two hypofractionated cohorts received 60 Gy to the prostate and 47 Gy to PLN in 20 fractions over 4 weeks (cohort 4) and 5 weeks (cohort 5)...
August 2, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28932548/predictors-of-conversion-to-thoracotomy-during-video-assisted-thoracoscopic-surgery-lobectomy-in-lung-cancer-additional-predictive-value-of-fdg-pet-ct-in-a-tuberculosis-endemic-region
#19
Chun Geun Lim, Kyung Min Shin, Ji Seun Lim, Jae Kwang Lim, Hye Jung Kim, Won Hwa Kim, Seung Hyun Cho, Seung Ick Cha, Eung Bae Lee, Yangki Seock, Shin Young Jeong
BACKGROUND: To evaluate the added clinical value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scans to chest CT imaging in predicting the conversion to thoracotomy during video-assisted thoracoscopic surgery (VATS) lobectomy in patients with lung cancer. METHODS: This is a retrospective study of 235 consecutive patients who underwent planned VATS lobectomy for primary lung cancer between 2011 and 2015. CT images were interpreted in terms of the presence and the attenuation of peribronchial lymph nodes (PLN) and peribronchial cuffs of soft (PCS) tissue, pleural calcification, and parenchymal calcified nodule...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28928013/the-prognostic-relevance-of-parapyloric-lymph-node-metastasis-in-siewert-type-ii-iii-adenocarcinoma-of-the-esophagogastric-junction
#20
Jia-Bin Wang, Man-Qiang Lin, Ping Li, Jian-Wei Xie, Jian-Xian Lin, Jun Lu, Qi-Yue Chen, Long-Long Cao, Mi Lin, Chao-Hui Zheng, Chang-Ming Huang
BACKGROUND: The purpose of this study was to evaluate the prognosis of patients with Siewert type II/III adenocarcinoma of the esophagogastric junction (AEG) with parapyloric lymph node (No. 5 and 6 lymph nodes, PLN) metastasis and to determine the need for PLN dissection for patients with type II/III AEG. METHODS: A total of 1008 patients with type II/III AEG who underwent a transabdominal total gastrectomy were enrolled. The long-term surgical outcome of PLN-positive patients and the therapeutic value of PLN dissection were analyzed...
September 8, 2017: European Journal of Surgical Oncology
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