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platelet and inflammation

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https://www.readbyqxmd.com/read/29464343/prognostic-significance-of-platelet-based-inflammatory-indicators-in-patients-with-gastric-cancer
#1
Hiroaki Saito, Yusuke Kono, Yuki Murakami, Yuji Shishido, Hirohiko Kuroda, Tomoyuki Matsunaga, Yoji Fukumoto, Tomohiro Osaki, Keigo Ashida, Yoshiyuki Fujiwara
BACKGROUND: Thrombocytosis develops in association with malignant tumors and may reflect the inflammation status in cancer patients. This study retrospectively investigated the prognostic significance of two platelet-based inflammatory indicators, the platelet × C-reactive protein multiplier value (P-CRP), and platelet-lymphocyte ratio (PLR), in gastric cancer patients. METHODS: The 453 enrolled patients had a histopathological diagnosis of gastric adenocarcinoma and underwent curative surgery...
February 20, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29461910/measuring-and-interpreting-platelet-leukocyte-aggregates
#2
Michaela Finsterbusch, Waltraud C Schrottmaier, Julia B Kral-Pointner, Manuel Salzmann, Alice Assinger
Platelets, besides their specialised role in haemostasis and atherothrombosis, actively modulate innate and adaptive immune responses with crucial roles in immune surveillance, inflammation and host defence during infection. An important prerequisite for platelet-mediated changes of immune functions involves direct engagement with different types of leukocytes. Indeed, increased platelet-leukocyte aggregates (PLAs) within the circulation and/or locally at the site of inflammation represent markers of many thrombo-inflammatory diseases, such as cardiovascular diseases, acute lung injury, renal and cerebral inflammation...
February 20, 2018: Platelets
https://www.readbyqxmd.com/read/29458436/immunoregulatory-functions-and-the-therapeutic-implications-of-garp-tgf-%C3%AE-in-inflammation-and-cancer
#3
REVIEW
Alessandra Metelli, Mohammad Salem, Caroline H Wallace, Bill X Wu, Anqi Li, Xue Li, Zihai Li
GARP (glycoprotein-A repetitions predominant) is a type I transmembrane cell surface docking receptor for latent transforming growth factor-β (TGF-β) that is abundantly expressed on regulatory T lymphocytes and platelets. GARP regulates the availability of membrane-bound latent TGF-β and modulates its activation. For this reason, GARP expression on immune and non-immune cells is involved in maintaining peripheral tolerance. It plays an important role in preventing inflammatory diseases such as allergy and graft versus host disease (GvHD)...
February 20, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29458014/topical-delivery-of-l-theanine-ameliorates-tpa-induced-acute-skin-inflammation-via-downregulating-endothelial-pecam-1-and-neutrophil-infiltration-and-activation
#4
Wei-Jie Zeng, Zhi Tan, Xing-Fei Lai, Ya-Nan Xu, Chun-Lin Mai, Jun Zhang, Zhen-Jia Lin, Xian-Guo Liu, Shi-Li Sun, Li-Jun Zhou
l-theanine, the most abundant free amino acid in tea, has been documented to possess many different bioactive properties through oral or intragastrical delivery. However, little is known about the effect of topical delivery of l-theanine on acute inflammation. In the present study, by using 12-O-tetradecanoylphorbol-13-acetate (TPA, 2.5 μg/ear)-induced ear edema model in mice, we first found that single-dose local pretreatment of l-theanine 30 min before TPA time- and dose-dependently suppressed the increases in both skin thickness and weight...
February 16, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29457215/the-effect-of-anaesthetic-technique-during-primary-breast-cancer-surgery-on-neutrophil-lymphocyte-ratio-platelet-lymphocyte-ratio-and-return-to-intended-oncological-therapy
#5
A Ní Eochagáin, D Burns, B Riedel, D I Sessler, D J Buggy
Inflammation and immunosuppression contribute to the pathogenesis of cancer. An increased neutrophil-lymphocyte ratio reflects these processes and is associated with adverse cancer outcomes. Whether anaesthetic technique for breast cancer surgery influences these factors, and potentially cancer recurrence, remains unknown. We conducted a secondary analysis in patients enrolled in an ongoing trial of anaesthetic technique on breast cancer recurrence. The primary hypothesis was that postoperative neutrophil-lymphocyte ratio is lower in patients allocated to receive propofol-paravertebral rather than inhalational agent-opioid anaesthesia for primary breast cancer surgery...
February 19, 2018: Anaesthesia
https://www.readbyqxmd.com/read/29457148/platelets-at-the-vascular-interface
#6
Wolfgang Bergmeier, Lucia Stefanini
In this brief review paper, we will summarize the State-of-the-Art on how platelet reactivity is regulated in circulation and at sites of vascular injury. Our review discusses recent and ongoing work, presented at this year's International Society on Thrombosis and Haemostasis (ISTH) meeting, on the role of platelets in (1) classical hemostasis at sites of mechanical injury, and (2) the maintenance of vascular integrity at sites of inflammation.
January 2018: Research and Practice in Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29454639/neutrophil-to-lymphocyte-ratio-platelet-to-lymphocyte-ratio-and-c-reactive-protein-as-new-and-simple-prognostic-factors-in-patients-with-metastatic-renal-cell-cancer-treated-with-tyrosine-kinase-inhibitors-a-systemic-review-and-meta-analysis
#7
Aleksandra Semeniuk-Wojtaś, Arkadiusz Lubas, Rafał Stec, Tomasz Syryło, Stanisław Niemczyk, Cezary Szczylik
BACKGROUND: Inflammation plays a crucial role in cancer development. In this study, we evaluate the prognostic values of systemic inflammation markers such as neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and C-reactive protein (CRP) for the progression-free survival and overall survival in patients with metastatic renal cell carcinoma treated with tyrosine kinase inhibitors. MATERIALS AND METHODS: PubMed and the Cochrane Library databases were searched for published studies on the effect of NLR, PLR, and CRP in patients with metastatic renal cell carcinoma treated with tyrosine kinase inhibitors...
February 2, 2018: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29448091/evidence-and-prospective-of-plant-derived-flavonoids-as-antiplatelet-agents-strong-candidates-to-be-drugs-of-future
#8
Harron Khan, Mohammad Jawad, Mohammad Ajmal Kamal, Alessandra Baldi, Jianbo Xiao, Seyed Mohammad Nabavi, Maria Daglia
Platelets are involved in hemostasis, inflammation, and thrombosis processes. Following a vascular damage, the endothelium releases protein factors, allowing the adhesion of subendothelium to platelets. Then platelets are activated, leading to the secretion of biologically-active ligands including thromboxane A2, adenosine diphosphate and serotonin. Aspirin, clopidogrel and warfarin are the most common drugs used to meet the challenges of platelet aggregation. However, these agents face issues with aspirin resistance and bleeding...
February 12, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29446689/platelets-and-vascular-integrity
#9
Carsten Deppermann
Platelets patrol the vasculature and adhere at sites of vascular damage after trauma to limit blood loss. In recent years, however, it has become clear that platelets also contribute to pathophysiologic processes such as thrombosis, atherosclerosis, stroke, sepsis and many more. An exciting new role for them is in non-classical hemostasis to prevent bleeding in the inflamed vasculature. Recent studies suggest that GPVI, CLEC-2, integrin αIIbβ3 (GPIIb/IIIa), and the content of platelet α- and dense granules are important players in this process...
February 15, 2018: Platelets
https://www.readbyqxmd.com/read/29445877/sodium-lactate-improves-renal-microvascular-thrombosis-compared-to-sodium-bicarbonate-and-0-9-nacl-in-a-porcine-model-of-endotoxic-shock-an-experimental-randomized-open-label-controlled-study
#10
Thibault Duburcq, Arthur Durand, Antoine Tournoys, Viviane Gnemmi, Valery Gmyr, François Pattou, Mercedes Jourdain, Fabienne Tamion, Emmanuel Besnier, Sebastien Préau, Erika Parmentier-Decrucq, Daniel Mathieu, Julien Poissy, Raphaël Favory
BACKGROUND: Sodium lactate seemed to improve fluid balance and avoid fluid overload. The objective of this study was to determine if these beneficial effects can be at least partly explained by an improvement in disseminated intravascular coagulation (DIC)-associated renal microvascular thrombosis. METHODS: Ancillary work of an interventional randomized open label controlled experimental study. Fifteen female "Large White" pigs (2 months old) were challenged with intravenous infusion of E...
February 14, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29445100/pretreatment-inflammatory-indexes-as-prognostic-predictors-for-survival-in-colorectal-cancer-patients-receiving-neoadjuvant-chemoradiotherapy
#11
Jing Yang, Hui Xu, Xinli Guo, Jing Zhang, Xiaoyang Ye, Yanping Yang, Xuelei Ma
This study was to evaluate the prognostic value of pretreatment inflammatory indexes including neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), and systemic immune-inflammation index (SII) in colorectal cancer (CRC) patients receiving neoadjuvant chemoradiotherapy (CRT). We enrolled 98 eligible CRC patients and divided them into high or low NLR, PLR, LMR, and SII groups according to their median index value, respectively. Univariate and multivariate analysis were performed to identify the potential predictors of progression-free survival (PFS) and overall survival (OS)...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29443899/protease-activated-receptor-4-par4-a-promising-target-for-antiplatelet-therapy
#12
REVIEW
Gamariel Rwibasira Rudinga, Ghulam Jilany Khan, Yi Kong
Cardiovascular diseases (CVDs) are currently among the leading causes of death worldwide. Platelet aggregation is a key cellular component of arterial thrombi and major cause of CVDs. Protease-activated receptors (PARs), including PAR1, PAR2, PAR3 and PAR4, fall within a subfamily of seven-transmembrane G-protein-coupled receptors (GPCR). Human platelets express PAR1 and PAR4, which contribute to the signaling transduction processes. In association with CVDs, PAR4 not only contributes to platelet activation but also is a modulator of cellular responses that serve as hallmarks of inflammation...
February 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29442539/platelets-in-wound-healing-and-regenerative-medicine
#13
Julia Etulain
Although platelets are widely recognized as having a critical role in primary hemostasis and thrombosis, increasing experimental and clinical evidence identifies these enucleated cells as relevant modulators of other physiopathological processes including inflammation and tissue regeneration. These phenomena are mediated through the release of growth factors, cytokines, and extracellular matrix modulators that sequentially promote (i) revascularization of damaged tissue through the induction of migration, proliferation, differentiation, and stabilization of endothelial cells in new blood vessels; (ii) restoration of damaged connective tissue through migration, proliferation, and activation of fibroblasts; and (iii) proliferation and differentiation of mesenchymal stem cells into tissue-specific cell types...
February 14, 2018: Platelets
https://www.readbyqxmd.com/read/29437579/mouse-platelet-ral-gtpases-control-p-selectin-surface-expression-regulating-platelet-leukocyte-interaction
#14
Andreas Wersäll, Chris M Williams, Edward Brown, Tommaso Iannitti, Neil Williams, Alastair W Poole
OBJECTIVE: RalA and RalB GTPases are important regulators of cell growth, cancer metastasis, and granule secretion. The purpose of this study was to determine the role of Ral GTPases in platelets with the use of platelet-specific gene-knockout mouse models. APPROACH AND RESULTS: This study shows that platelets from double knockout mice, in which both GTPases have been deleted, show markedly diminished (≈85% reduction) P-selectin translocation to the surface membrane, suggesting a critical role in α-granule secretion...
February 8, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29435305/clinical-significance-of-the-c-reactive-protein-to-albumin-ratio-for-the-prognosis-of-patients-with-esophageal-squamous-cell-carcinoma
#15
Masaki Kunizaki, Tetsuro Tominaga, Kouki Wakata, Takuro Miyazaki, Keitaro Matsumoto, Yorihisa Sumida, Shigekazu Hidaka, Takuya Yamasaki, Toru Yasutake, Terumitu Sawai, Ryuji Hamamoto, Atsushi Nanashima, Takeshi Nagayasu
The aim of the present study was to investigate the prognostic value of the C-reactive protein-to-albumin ratio (CAR) and compare it with other inflammation-based prognostic scores (Glasgow prognostic score, modified Glasgow prognostic score, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, prognostic nutritional index and prognostic index) in patients with esophageal squamous cell cancer (ESCC). A database of 116 patients with primary ESCC who underwent treatment at the Division of Surgical Oncology at Nagasaki University Hospital between January 2007 and August 2014 was retrospectively reviewed and the correlations between CAR and overall survival (OS) were investigated...
February 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29434765/platelet-rich-plasma-has-beneficial-effects-in-mice-with-osteonecrosis-of-the-femoral-head-by-promoting-angiogenesis
#16
Shichao Tong, Jimin Yin, Ji Liu
Platelet-rich plasma (PRP) is autologous and multifunctional. Platelet concentrate from blood contains highly concentrated platelets and various types of cells, including growth factors. PRP promotes the recovery of cell proliferation and differentiation. Osteonecrosis of the femoral head is a disease caused by femoral head damage or an insufficient blood supply, which leads to the death of bone cells and abnormal bone marrow composition. The subsequent repair of bone cells may result in changes to the structure of femoral head, femoral head collapse and joint dysfunction...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29433243/the-potential-applications-of-mushrooms-against-some-facets-of-atherosclerosis-a-review
#17
REVIEW
Nur Amalina Amirullah, Nurhayati Zainal Abidin, Noorlidah Abdullah
Atherosclerosis is a complex pathology that involves several factors in its development, like oxidative stress, inflammation, hyperlipidemia, platelet aggregation and thrombus formation. Several drugs and therapeutic approaches have been developed to handle these aspects of atherosclerosis. However, some of these treatments can be costly and have undesirable side effects. Many constituents of mushrooms have been shown to have potential anti-atherosclerotic effects in several in vitro and in vivo studies. Recently, the possible mechanisms in which they exert these effects have also been elucidated...
March 2018: Food Research International
https://www.readbyqxmd.com/read/29433015/effect-of-strenuous-exercise-on-mediators-of-inflammation-in-patients-with-coronary-artery-disease
#18
Joanna Cwikiel, Ingebjørg Seljeflot, Eivind Berge, Ida Unhammer Njerve, Hilde Ulsaker, Harald Arnesen, Arnljot Flaa
BACKGROUND: Coronary artery disease (CAD) is considered a low-grade inflammatory disease. We aimed to identify effects of short-term strenuous exercise on mediators of systemic inflammation, endothelial and platelet activation in patients with angiographically verified CAD. We hypothesized that a more pronounced inflammatory response would be present in patients with CAD than in those without CAD. METHODS: In subjects with symptoms indicative of stable CAD, an exercise stress test on a bicycle ergometer was performed...
February 9, 2018: Cytokine
https://www.readbyqxmd.com/read/29430226/a-hepatitis-c-virus-associated-chronic-hepatitis-patient-developing-various-adverse-events-including-severe-gingivitis-gingival-bleeding-and-inflammation-of-genital-vulva-during-the-course-of-antiviral-therapy-with-elbasvir-grazoprevir
#19
Kazuo Tarao, Akira Sato
Oral direct-acting antivirals comprise the main therapy for hepatitis C virus (HCV)-associated liver disease in Japan. Daclatasvir/asunaprevir is the primary agent and sofosbuvir/ledipasvir is the secondary agent for HCV genotype 1b. Ombitasvir/paritaprevir/ritonavir was also recommended as a therapy for HCV genotype 1b. More recently, elbasvir (NS5A inhibitor)/grazoprevir (NS3/4A protease inhibitor) was also recommended as a potent therapy for HCV genotype 1b infection. This agent achieved an SVR12 as high as 96...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29428242/bu-shen-yi-sui-capsule-promotes-remyelination-correlating-with-sema3a-nrp-1-lif-lifr-and-nkx6-2-in-mice-with-experimental-autoimmune-encephalomyelitis
#20
Pei-Yuan Zhao, Yong-Qiang Wang, Xi-Hong Liu, Ying-Jun Zhu, Hui Zhao, Qiu-Xia Zhang, Fang Qi, Jun-Ling Li, Nan Zhang, Yong-Ping Fan, Kang-Ning Li, Yuan-Yuan Zhao, Jian-Feng Lei, Lei Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Bu Shen Yi Sui capsule (BSYSC), based on traditional Chinese formula Liu Wei Di Huang pill, is effective for the treatment of multiple sclerosis (MS) in clinical experience and trials. Our previous studies confirmed that BSYSC had the neuroprotective effect in MS and its animal model, experimental autoimmune encephalomyelitis (EAE); however, its mechanism of action was not clear. Thus, the effect of BSYSC on remyelination and the underlying mechanisms were investigated in the EAE mice...
February 8, 2018: Journal of Ethnopharmacology
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