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Adrenomedullin

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https://www.readbyqxmd.com/read/29324627/effects-of-the-humanized-anti-adrenomedullin-antibody-adrecizumab-ham8101-on-vascular-barrier-function-and-survival-in-rodent-models-of-systemic-inflammation-and-sepsis
#1
Christopher Geven, Esther Peters, Mathias Schroedter, Joachim Struck, Andreas Bergmann, Oscar McCook, Peter Radermacher, Matthijs Kox, Peter Pickkers
PURPOSE: Adrenomedullin (ADM) is an important regulator of endothelial barrier function during sepsis. Administration of a murine antibody targeted against the N-terminus of ADM (HAM1101) resulted in improved outcome in models of murine sepsis. We studied the effects of a humanized form of this antibody (HAM8101, also known as Adrecizumab) on vascular barrier dysfunction and survival in rodent models of systemic inflammation and sepsis. METHODS: Rats (n=48) received different dosages of HAM8101 or placebo (n = 8 per group), directly followed by administration of lipopolysaccharide (5 mg/kg)...
January 10, 2018: Shock
https://www.readbyqxmd.com/read/29324626/vascular-effects-of-adrenomedullin-and-the-anti-adrenomedullin-antibody-adrecizumab-in-sepsis
#2
Christopher Geven, Andreas Bergmann, Matthijs Kox, Peter Pickkers
Sepsis remains a major scientific and medical challenge, for which, apart from significant refinements in supportive therapy, treatment has barely changed over the last few decades. During sepsis, both vascular tone and vascular integrity are compromised, and contribute to the development of shock. The free circulating peptide adrenomedullin (ADM) is involved in regulation of the endothelial barrier function and tone of blood vessels. Several animal studies have shown that ADM administration improves outcome of sepsis...
January 10, 2018: Shock
https://www.readbyqxmd.com/read/29319365/the-prognostic-value-of-mid-regional-pro-adrenomedullin-in-the-evaluation-of-acute-dyspnea
#3
Justin J Choi, Matthew W McCarthy
Acute dyspnea is a common chief complaint among patients who visit an emergency room and presents diagnostic challenges for clinicians in both identifying the etiology and determining the clinical severity. The study of biomarkers in the prognostication and risk stratification of these patients has been increasing, including the investigation of the prognostic value for mid-regional pro-adrenomedullin (MR-proADM). Areas Covered: In this review, the authors cover what is known about MR-proADM testing in patients presenting with acute dyspnea and the supporting evidence of its prognostic value in common conditions in medical patients with acute dyspnea, including acute heart failure, community acquired pneumonia, acute exacerbation of chronic obstructive pulmonary disease, and acute pulmonary embolism...
January 10, 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29295870/effect-of-liraglutide-on-atrial-natriuretic-peptide-adrenomedullin-and-copeptin-in-pcos
#4
Signe Frøssing, Malin Nylander, Caroline Kistorp, Sven O Skouby, Jens Faber
CONTEXT: Women with polycystic ovary syndrome (PCOS) have an increased risk of cardiovascular disease (CVD), and biomarkers can be used to detect early subclinical CVD. Midregional-pro-adrenomedullin (MR-proADM), midregional-pro-atrial natriuretic peptide (MR-proANP) and copeptin are all associated with CVD and part of the delicate system controlling fluid and hemodynamic homeostasis through vascular tonus and diuresis. The GLP-1 receptor agonist liraglutide, developed for treatment of type 2 diabetes (T2D), improves cardiovascular outcomes in patients with T2D including a decrease in particular MR-proANP...
January 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29290991/early-and-late-effects-of-pharmacological-alk-inhibition-on-the-neuroblastoma-transcriptome
#5
Shana Claeys, Geertrui Denecker, Robrecht Cannoodt, Candy Kumps, Kaat Durinck, Frank Speleman, Katleen De Preter
Background: Neuroblastoma is an aggressive childhood malignancy of the sympathetic nervous system. Despite multi-modal therapy, survival of high-risk patients remains disappointingly low, underscoring the need for novel treatment strategies. The discovery of ALK activating mutations opened the way to precision treatment in a subset of these patients. Previously, we investigated the transcriptional effects of pharmacological ALK inhibition on neuroblastoma cell lines, six hours after TAE684 administration, resulting in the 77-gene ALK signature, which was shown to gradually decrease from 120 minutes after TAE684 treatment, to gain deeper insight into the molecular effects of oncogenic ALK signaling...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29247064/exosomal-adrenomedullin-derived-from-cancer-associated-fibroblasts-promotes-lipolysis-in-adipose-tissue
#6
Fanyang Kong, Li Lei, Yiqi Du, Huiyun Zhu, Zhaoshen Li, Xiangyu Kong
No abstract text is available yet for this article.
December 15, 2017: Gut
https://www.readbyqxmd.com/read/29246637/usefulness-of-midregional-pro-adrenomedullin-as-a-marker-of-organ-damage-and-predictor-of-mortality-in-patients-with-sepsis
#7
Enrique Bernal-Morell, Eva García-Villalba, Maricarmen Vera, Blanca Medina, Monica Martinez, Victoria Callejo, Salvador Valero, Cesar Cinesi, Pascual Piñera, Antonia Alcaraz, Irene Marin, Angeles Muñoz, Alfredo Cano
BACKGROUND: Midregional proadrenomedullin (MR-proADM) is a prognostic biomarker in patients with community-acquired pneumonia (CAP) and sepsis. In this paper, we examined the ability of MR-proADM to predict organ damage and long-term mortality in sepsis patients, compared to that of procalcitonin, C-reactive protein and lactate. METHODS: This was a prospective observational cohort, enrolling severe sepsis or septic shock patients admitted to internal service department...
December 12, 2017: Journal of Infection
https://www.readbyqxmd.com/read/29246418/assessment-of-adrenomedullin-and-proadrenomedullin-as-predictors-of-mortality-in-septic-patients-a-systematic-review-and-meta-analysis
#8
Q Li, B S Wang, L Yang, C Peng, L B Ma, C Chai
OBJECTIVE: To ascertain the ability of adrenomedullin (ADM) and proadrenomedullin (proADM) to predict mortality in sepsis patients. DESIGN: A systematic literature search was made of the PubMed, EMBASE, Cochrane and China National Knowledge Infrastructure (CNKI) databases before May 2017, supplemented by manual searches of references. A meta-analysis of high-quality clinical studies was subsequently performed to assess the association between ADM/proADM and mortality risk among patients with sepsis...
December 12, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/29245184/evaluation-of-the-use-of-novel-biomarkers-to-augment-antimicrobial-stewardship-program-activities
#9
Kayla R Stover, Rachel M Kenney, Travis S King, Alan E Gross
As antimicrobial stewardship increasingly receives worldwide attention for improving patient care by optimizing antimicrobial therapy, programs are evaluating new tools that may augment antimicrobial stewardship activities. Biomarkers are objective, accurate, and reproducible measures that provide information about medical conditions. A systematic literature search using PubMed/MEDLINE databases was performed to evaluate the use of novel biomarkers as additions to the antimicrobial stewardship armamentarium...
December 15, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29235493/small-molecules-related-to-adrenomedullin-reduce-tumor-burden-in-a-mouse-model-of-colitis-associated-colon-cancer
#10
Laura Ochoa-Callejero, Josune García-Sanmartín, Sonia Martínez-Herrero, Susana Rubio-Mediavilla, Judit Narro-Íñiguez, Alfredo Martínez
To investigate the contribution of adrenomedullin (AM) and its gene-related peptide, proadrenomedullin N-terminal 20 peptide (PAMP), to the progression and potential treatment of colon cancer we studied the effects of four small molecules (SM) related to AM and PAMP on a mouse model of colon cancer. For each SM, four experimental groups of male mice were used: (i) Control group; (ii) SM group; (iii) DSS group (injected with azoxymethane [AOM] and drank dextran sulfate sodium [DSS]); and (iv) DSS + SM group (treated with AOM, DSS, and the SM)...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29192743/can-pancreatic-cancer-be-detected-by-adrenomedullin-in-patients-with-new-onset-diabetes-the-pacanod-cohort-study-protocol
#11
Laura Antolino, Mara La Rocca, Federico Todde, Elena Catarinozzi, Paolo Aurello, Lucilla Bollanti, Giovanni Ramacciato, Francesco D'Angelo
INTRODUCTION: Pancreatic cancer is a leading cause of cancer-related death. Its diagnosis is often delayed and patients are frequently found to have unresectable disease. Patients diagnosed with new-onset diabetes have an 8-fold risk of harboring pancreatic cancer. Adrenomedullin has been claimed to mediate diabetes in pancreatic cancer. New screening tools are needed to develop an early diagnosis protocol. METHODS: Patients aged 45-75 years within 2 years of first fulfilling the ADA criteria for diabetes will be prospectively enrolled in this study...
November 29, 2017: Tumori
https://www.readbyqxmd.com/read/29187812/adrenomedullin-contributes-to-age-related-memory-loss-in-mice-and-is-elevated-in-aging-human-brains
#12
Ignacio M Larrayoz, Hilda Ferrero, Eva Martisova, Francisco J Gil-Bea, María J Ramírez, Alfredo Martínez
Memory decline is common in elderly individuals and is the hallmark of Alzheimer's disease (AD). Memory failure follows the loss of synaptic contacts in the cerebral cortex and hippocampus, caused in part by cytoskeleton disruption. Adrenomedullin (AM) and its gene-related peptide, proadrenomedullin N-terminal 20 peptide (PAMP), are microtubule-associated proteins (MAP) whose expression has been identified as a potential biomarker for predicting progression from predementia to clinical AD. Here we analyze the connection between AM levels and memory preservation...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29184072/adrenomedullin-protects-leydig-cells-against-lipopolysaccharide-induced-oxidative-stress-and-inflammatory-reaction-via-mapk-nf-%C3%AE%C2%BAb-signalling-pathways
#13
Wei Hu, Lei Shi, Ming-Yong Li, Pang-Hu Zhou, Bo Qiu, Ke Yin, Hui-Hui Zhang, Yong Gao, Ran Kang, Song-Lin Qin, Jin-Zhuo Ning, Wei Wang, Li-Jun Zhang
This study aimed to explore the possible benefits of adrenomedullin (ADM) in preventing oxidative stress and inflammation by using an in vitro primary culture model of rat Leydig cells exposed to lipopolysaccharide (LPS). Cell proliferation was detected through CCK-8 and BrdU incorporation assays. ROS were determined with a DCFDA kit, and cytokine concentrations were measured with ELISA assay kits. Protein production was examined by immunohistochemical staining and Western blot, and gene expression was observed through RT-qPCR...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29179449/the-role-of-adrenomedullin-in-the-pathogenesis-of-gastric-cancer
#14
Fuhao Qiao, Jian Fang, Jinfeng Xu, Wenqiu Zhao, Ying Ni, Bufugdi Andreas Akuo, Wei Zhang, Yun Liu, Fangfang Ding, Guanlin Li, Baoguo Liu, Hua Wang, Shihe Shao
Adrenomedullin has been shown to be overexpressed in many tumors, including gastric cancer tumors; however, its mechanism of action remains unclear. In this study, we examined the role of adrenomedullin in the pathogenesis of gastric cancer. Using clinical specimens and immunohistochemistry, we found that the expression levels of adrenomedullin and its receptors are inordinately elevated as compared to the adjacent non-tumor gastric tissues. We used siRNA gene silencing, in BGC-823 gastric cancer cell lines, to target adrenomedullin genes, and found that increased adrenomedullin expression results in the proliferation of tumor cells, tumor invasion, and metastasis...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29161297/prognostic-performance-of-mr-pro-adrenomedullin-in-patients-with-community-acquired-pneumonia-in-the-emergency-department-compared-to-clinical-severity-scores-psi-and-curb
#15
Jacopo Maria Legramante, Maria Mastropasqua, Beniamino Susi, Ottavia Porzio, Marta Mazza, Grazia Miranda Agrippino, Cartesio D Agostini, Antonella Brandi, Germano Giovagnoli, Vito Nicola Di Lecce, Sergio Bernardini, Marilena Minieri
AIM: (i) evaluate the performance of MR-pro-ADM in reflecting the outcome and risk for CAP patients in the emergency department, and (ii) compare the prognostic performance of MR-pro-ADM with that of clinical scores PSI and CURB65. METHODS: Observational prospective, single-center study in patients with suspected community acquired pneumonia (CAP). Eighty one patients underwent full clinical and laboratory assessment as by protocol, and were followed up a 28 days...
2017: PloS One
https://www.readbyqxmd.com/read/29153200/adrenomedullin-as-a-biomarker-of-heart-failure
#16
REVIEW
Toshio Nishikimi, Yasuaki Nakagawa
Adrenomedullin (AM) is a vasodilatory peptide originally discovered in human pheochromocytoma tissue. Although AM is highly expressed in the adrenal glands, heart, lungs, and kidneys, vascular endothelium and smooth muscle are thought to be the main source of plasma AM. The AM precursor is processed to AM-glycine, which is then converted to AM-mature through C-terminal amidation. In this process, mid-regional pro-adrenomedullin (MR-proAM) is also produced. Plasma AM, AM-mature, AM-glycine, and MR-proAM levels are all higher in patients with heart failure than healthy subjects in proportional to the disease severity...
January 2018: Heart Failure Clinics
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
#17
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/29138835/mesenchymal-stem-cells-overexpressing-adrenomedullin-improve-heart-function-through-antifibrotic-action-in-rats-experiencing-heart-failure
#18
Li Li Li, Cheng Peng, Meiling Zhang, Yumei Liu, Hefei Li, Huibo Chen, Yu Sun, Chunjun Zhu, Yao Zhang
Previous studies of the authors have indicated that the transplantation of mesenchymal stem cells (MSCs) can attenuate cardiac fibrosis through the secretion of antifibrotic factors, such as adrenomedullin (ADM). Therefore, the authors addressed the hypothesis that ADM overexpression could enhance the antifibrotic effect of MSCs transplantation in a rat model of heart failure. The results of the present study demonstrated that, compared with the group that received the GFP‑MSCs, the transplantation of ADM‑MSCs significantly improved heart function and decreased the percentage of fibrotic area and the expression of matrix metalloproteinase 2...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29104800/caffeoylquinic-acid-enhances-proliferation-of-oligodendrocyte-precursor-cells
#19
Ying Yanqin, Chen Shaohua, Tang Jing, Li Nan
This report evaluates the protective effect of caffeoylquinic acid (CA) injury to oligodendrocyte precursor cells (OPCs) by promoting the formation of oligodendrocytes. Neonatal rat brain was used to isolate primary OPCs and non-lethal CoCl2 was used to induce hypoxic stress to inhibit the differentiation of OPCs. Differentiation of OPCs was estimated by survival assay and the expressions of myelin-basic-protein (MBP). Moreover, the effect of CA on the Akt signanling pathway was also estimated in the presence and absence of LY294002 (PI3K/Akt inhibitor) and adrenomedullin (AM) receptor antagonist (AM22-52) by using western blot assay...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/29067096/adrenomedullin-inhibits-osteoclast-differentiation-through-the-suppression-of-receptor-activator-of-nuclear-factor-%C3%AE%C2%BAb-ligand-induced-nuclear-factor-%C3%AE%C2%BAb-activation-in-glucocorticoid-induced-osteoporosis
#20
Yuanxin Liu, Guilai Zuo, Xin Meng, Xingxiao Gao, Lihai Zhang, Peifu Tang
The current study aimed to improve the understanding on the association between adrenomedullin and osteoporosis in mice with glucocorticoid-induced osteoporosis. Bone resorption and osteoporosis-associated indexes, including maximum load, stiffness, energy to failure, ultimate strength, elastic modulus, post-yield displacement and post-yield displacement, in mice with osteoporosis were analyzed in order to evaluate the effect of adrenomedullin. The receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclast differentiation was investigated subsequent to treatment with adrenomedullin in vitro...
November 2017: Experimental and Therapeutic Medicine
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