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https://www.readbyqxmd.com/read/29778842/curcumin-attenuates-sepsis-induced-acute-organ-dysfunction-by-preventing-inflammation-and-enhancing-the-suppressive-function-of-tregs
#1
Longwang Chen, Yang Lu, Linjun Zhao, Lili Hu, Qiaomeng Qiu, Zhuoling Zhang, Mengfang Li, Guangliang Hong, Bing Wu, Guangju Zhao, Zhongqiu Lu
Sepsis is characterized by the extensive release of cytokines and other mediators. It results in a dysregulated immune response and can lead to organ damage and death. Curcumin has anti-inflammatory properties and immunoregulation functions in various disorders such as sepsis, cancer, rheumatoid arthritis, cardiovascular diseases, lung fibrosis, gallstone formation, and diabetes. This paper investigates the effects of curcumin on immune status and inflammatory response in mice subjected to cecal ligation and puncture (CLP)...
May 17, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29777850/a-novel-cardiovascular-prosthesis-made-from-woven-ultra-high-molecular-weight-polyethylene-fibers-proof-of-concept-in-a-sheep-model
#2
Amir Basir, Mylène Loncq de Jong, Aryan Vink, Gerard Pasterkamp, Paul Gründeman, Frans Moll, Joost van Herwaarden
BACKGROUND: A patch, made of woven ultra-high molecular weight polyethylene (UHMWPE) fibers is thin, strong, and flexible, and may be attractive for use in cardiovascular prostheses. This study assessed the hemocompatibility of this patch in a sheep model. METHODS: The UHMWPE patches were sutured in the right carotid artery and jugular vein in 12 adult sheep, and in the same animal, expanded polytetrafluoroethylene (ePTFE) patches were sutured as control patches in the left carotid artery and jugular vein...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29777040/obe022-an-oral-and-selective-prostaglandin-f2%C3%AE-receptor-antagonist-as-an-effective-and-safe-modality-for-the-treatment-of-preterm-labor
#3
Oliver Pohl, Andre Chollet, Sung Hye Kim, Lucia Riaposova, Francois Spezia, Frederic Gervais, Philippe Guillaume, Philippe Lluel, Murielle Meen, Frederique Lemaux, Vasso Terzidou, Phillip R Bennett, Jean-Pierre Gotteland
Preterm birth is the major challenge in obstetrics affecting ~10% of pregnancies. Pan-prostaglandin synthesis inhibitors (NSAID) prevent preterm labor and prolong pregnancy but raise concerns about fetal renal and cardiovascular safety. We conducted preclinical studies examining the tocolytic effect and fetal safety of the oral prodrug candidate OBE022 and its parent OBE002, both potent and highly selective antagonist of the contractile PGF2α prostaglandin receptor (FP). Efficacy of OBE022 and OBE002, alone and in combination with other tocolytics, was assessed in human tissues and pregnant animal models for inhibition of uterine contraction and delay of parturition...
May 18, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29776603/regulation-of-g-protein-%C3%AE-%C3%AE-signaling
#4
Kanishka Senarath, Dinesh Kankanamge, Saroopa Samaradivakara, Kasun Ratnayake, Mithila Tennakoon, Ajith Karunarathne
Heterotrimeric guanine nucleotide-binding proteins (G proteins) deliver external signals to the cell interior, upon activation by the external signal stimulated G protein-coupled receptors (GPCRs).While the activated GPCRs control several pathways independently, activated G proteins control the vast majority of cellular and physiological functions, ranging from vision to cardiovascular homeostasis. Activated GPCRs dissociate GαGDPβγ heterotrimer into GαGTP and free Gβγ. Earlier, GαGTP was recognized as the primary signal transducer of the pathway and Gβγ as a passive signaling modality that facilitates the activity of Gα...
2018: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/29774748/assessment-of-trazodone-induced-cardiotoxicity-after-repeated-doses-in-rats
#5
O Atli, V Kilic, M Baysal, G Kilic, G Gormus, S Ucarcan, B Korkut, S Ilgin
Trazodone (TRZ) is an antidepressant drug commonly used in the treatment of depression, anxiety, and insomnia. Although some studies demonstrated the adverse effects of TRZ related to cardiovascular system, the conflicting results were observed in these studies. Therefore, we aimed to investigate the cardiac adverse effects of TRZ in rats at repeated doses in our study. In accordance with this purpose, TRZ was administered orally to rats at 5, 10, and 20 mg/kg doses for 28 days. Electrocardiogram records, serum aspartate aminotransferase (AST), lactate dehydrogenase, creatine kinase-myoglobin band, cardiac troponin-T (cTn-T) levels, DNA damage in cardiomyocytes, and histologic view of heart tissues were evaluated...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29774187/multimodality-imaging-for-the-quantitative-assessment-of-mitral-regurgitation
#6
REVIEW
Pei G Chew, Katrina Bounford, Sven Plein, Dominik Schlosshan, John P Greenwood
The natural history of mitral regurgitation (MR) results in significant morbidity and mortality. Innovations in non-invasive imaging have provided new insights into the pathophysiology and quantification of MR, in addition to early detection of left ventricular (LV) dysfunction and prognostic assessment in asymptomatic patients. Transthoracic (TTE) and transesophageal (TOE) echocardiography are the mainstay for diagnosis, assessment and serial surveillance. However, the advance from 2D to 3D imaging leads to improved assessment and characterization of mitral valve (MV) disease...
April 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29772996/beneficial-protective-effect-of-troxerutin-on-nickel-induced-renal-dysfunction-in-wistar-rats
#7
Perumal Elangovan, Ramalingam Ramakrishnan, Kasinathan Amudha, Abdulkadhar Mohamed Jalaludeen, Gunasekaran Karuna Sagaran, Frankline Rajan Babu, Leelavinothan Pari
Nickel (Ni) is an important environmental toxicant that can cause cancer and cardiovascular disease. The aim of this study was to examine the protective effects of troxerutin (Txn) Ni-induced renal dysfunction in rats using biochemical and histopathological approaches. Nickel (20 mg/kg body weight [b.w.]/day) was administered intraperitoneally (i.p.) for 20 days. Renal damage from Ni toxicity was evident from the changed levels of serum and urinary markers in Ni-treated rats. The levels of lipid peroxidation markers also significantly increased, while the levels of nonenzymatic and enzymatic antioxidants significantly decreased in the kidney of Ni-intoxicated rats...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772784/capsaicin-in-metabolic-syndrome
#8
REVIEW
Sunil K Panchal, Edward Bliss, Lindsay Brown
Capsaicin, the major active constituent of chilli, is an agonist on transient receptor potential vanilloid channel 1 (TRPV1). TRPV1 is present on many metabolically active tissues, making it a potentially relevant target for metabolic interventions. Insulin resistance and obesity, being the major components of metabolic syndrome, increase the risk for the development of cardiovascular disease, type 2 diabetes, and non-alcoholic fatty liver disease. In vitro and pre-clinical studies have established the effectiveness of low-dose dietary capsaicin in attenuating metabolic disorders...
May 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29771607/mechanistic-insights-into-the-modulatory-role-of-the-mechanoreflex-on-central-hemodynamics-using-passive-leg-movement-in-humans
#9
Nicholas T Kruse, William E Hughes, Darren P Casey
The aim of this study was to examine the independent contributions of joint range of motion (ROM), muscle fascicle length (MFL) and joint angular velocity on mechanoreceptor mediated central cardiovascular dynamics using passive leg movement (PLM) in humans. Twelve healthy males (age: 23{plus minus}2 yrs, body mass index: 23.7 kg/m2 ) performed continuous PLM at various randomized joint angles ROM (0-50{degree sign} vs. 50-100{degree sign} vs. 0-100{degree sign}) and joint angular velocities ('fast': 200{degree sign}/s vs...
May 17, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29770747/cd16-expressing-monocytes-correlate-with-arterial-stiffness-in-hiv-infected-art-na%C3%A3-ve-men
#10
Ling Luo, Yang Han, Xiaojing Song, Ting Zhu, Yong Zeng, Taisheng Li
Objectives To determine the association of the markers of monocyte activation and arterial stiffness among HIV-infected antiretroviral therapy (ART)-naïve men. Methods Sixty HIV-infected ART-naïve men and 20 HIV-uninfected male controls without symptoms or history of cardiovascular disease were recruited. Pulse wave velocity (PWV) were used as the marker of arterial stiffness and determined using a pulse pressure analyzer. The percentage of CD16-expressing monocytes was used as a marker of monocyte activation...
April 2018: HIV Clinical Trials
https://www.readbyqxmd.com/read/29770300/tissue-engineered-vascular-grafts-for-pediatric-cardiac-surgery
#11
REVIEW
Toshihiro Shoji, Toshiharu Shinoka
New technologies and science have contributed to improved surgical outcomes in patients with congenital cardiovascular diseases. However, current materials display shortcomings, such as risk of infection and lack of growth capacity when applied to the pediatric patient population. Tissue engineering has the potential to address these limitations as the ideal tissue engineered vascular graft (TEVG) would be durable, biocompatible, nonthrombogenic, and ultimately remodel into native tissue. The traditional TEVG paradigm consists of a scaffold, cell source, and the integration of the scaffold and cells via seeding...
April 2018: Translational Pediatrics
https://www.readbyqxmd.com/read/29769455/tenascin-c-a-potential-biomarker-for-predicting-the-severity-of-coronary-atherosclerosis
#12
Wen Gao, Jian Li, Huanchun Ni, Haiming Shi, Zhiyong Qi, Shouguo Zhu, Chuanming Hao, Qionghong Xie, Xinping Luo, Kun Xie
AIMS: Coronary artery disease (CAD) is the leading cause of mortality and morbidity worldwide and one of the greatest threats to public health. Tenascin C (TNC) is an extracellular matrix glycoprotein that is found in low concentrations in normal tissues and is enhanced by a range of cardiovascular pathologies. This study aimed to evaluate the value of TNC in assessing the severity of atherosclerosis measured by the Gensini score. METHODS: A total of 157 patients with chest pains who underwent selective coronary angiography for suspected coronary atherosclerosis were enrolled...
May 17, 2018: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29769417/lactate-in-cardiogenic-shock-current-understanding-and-clinical-implications
#13
G M Kubiak, A R Tomasik, K Bartus, R Olszanecki, P Ceranowicz
Adenosine triphosphate (ATP) is an essential substrate metabolite in human beings. Mitochondrial oxidative phosphorylation provides > 95% of ATP with the remainder derived from glycolysis or tricarboxylic acid cycle (TCA). In normal hearts, acetyl-CoA is synthesized from the β-oxidation of free fatty acids (FFA) and the oxidation of pyruvate. Pyruvate is synthesized from glycolysis and can be submitted either for decarboxylation to acetyl-CoA or for dehydrogenation to lactate. Moreover, pyruvate, as well as lactate, plays a key role in aerobic glucose metabolism which is highly dependent on ubiquitous regulatory mechanisms...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29768640/lipoprotein-profile-modifications-during-gestation-a-current-approach-to-cardiovascular-risk-surrogate-markers-and-maternal-fetal-unit-complications
#14
Ana Paula Caires Dos Santos, Ricardo David Couto
Several changes occur in lipid metabolism during gestation due to hormonal and metabolic changes, which are essential to satisfy the nutritional demands of the maternal-fetal unit development. The gestation shows two distinct periods that begin with fat accumulation, mainly in maternal adipose tissue, and the late phase, characterized by accelerated catabolism, with the increase of fatty acids in the circulation that causes hyperlipidemia, especially the one characterized as hypertriglyceridemia. Maternal hyperlipidemia may be associated with the development of maternal-fetal complications (preterm birth, preeclampsia, vascular complications) and the development of long-term cardiovascular disease...
May 16, 2018: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29767465/salt-inflammation-il-17-and-hypertension
#15
REVIEW
Ulrich O Wenzel, Marlies Bode, Christian Kurts, Heimo Ehmke
Traditionally, arterial hypertension and subsequent end-organ damage have been attributed to hemodynamic factors, but increasing evidence indicates that inflammation also contributes to the deleterious consequences of this disease. The immune system has evolved to prevent invasion of foreign microorganisms and to promote tissue healing after injury. However, this beneficial activity comes at a cost of collateral damage when the immune system overreacts to internal injury, such as prehypertension. Over the last years important findings have revolutionized hypertension research...
May 16, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29765591/a-case-of-periorbital-necrotizing-fasciitis-rapidly-progressing-to-severe-multiorgan-failure
#16
Paola Eiben, Sancho Rodriguez-Villar
Periorbital necrotizing fasciitis (PNF) is a severe suppurative infection of the subcutaneous tissue and underlying fascia of the periorbital region. Typically, the course of PNF is milder and has a better prognosis than that of necrotizing fasciitis in other parts of the body. As such, this disease is thought to be associated with a significantly smaller risk of morbidity and mortality. Nevertheless, it is a rare and devastating condition that can lead to disfigurement, blindness and death. Early recognition is critical to improved patient outcomes...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29765521/long-term-deficiency-of-vitamin-d-in-germ-cell-testicular-cancer-survivors
#17
Lucia Nappi, Margaret Ottaviano, Pasquale Rescigno, Ladan Fazli, Martin E Gleave, Vincenzo Damiano, Sabino De Placido, Giovannella Palmieri
Background: Cisplatin-based chemotherapy significantly improved the survival of patients with germ cell testicular cancer. However, long term side effects of chemotherapy have non-negligible impact on the quality of life of these young patients, who have a long life expectancy after being successfully treated. Materials and Methods: 25-OH vitamin D, testosterone, FSH and LH of patients with testicular cancer were retrospectively evaluated and for each patient clinical information were collected...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29765319/progression-and-regression-of-hepatic-lesions-in-a-mouse-model-of-nash-induced-by-dietary-intervention-and-its-implications-in-pharmacotherapy
#18
Zhi-Ming Ding, Yue Xiao, Xikun Wu, Haixia Zou, Shurong Yang, Yiyun Shen, Juehua Xu, Heather C Workman, Amy L Usborne, Haiqing Hua
Understanding of the temporal changes of hepatic lesions in the progression and regression of non-alcoholic steatohepatitis (NASH) is vital to elucidation of the pathogenesis of NASH, and critical to the development of a strategy for NASH pharmacotherapy. There are challenges in studying hepatic lesion progression and regression in NASH patients due to the slow development of NASH in humans, one being the requirement for multiple biopsies during the longitudinal follow-up. Here we studied lesion progression and regression in the diet-induced animal model of NASH by application or removal of the pathogenic diet for multiple time periods...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29765169/m1-m2-macrophage-polarization-in-human-obese-adipose-tissue
#19
Jaroslava Chylikova, Jana Dvorackova, Zdenek Tauber, Vojtech Kamarad
Obesity and insulin resistance are closely associated with chronic inflammation in adipose tissue, where macrophages play an important role. Adipose tissue macrophages can be divided into two main phenotypes: the classical M1 macrophages and alternatively activated macrophages M2. M1 macrophages produce pro-inflammatory cytokines (TNF-α, interleukin IL-6 and MCP-1) and thus contribute to the development of insulin resistance. On the other hand, M2 macrophages, anti-inflammatory, are involved in the maintenance of tissue homeostasis and are typical in the adipose tissue of slender individuals...
May 16, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29763891/endothelial-progenitor-cells-and-kidney-diseases
#20
Abdullah Ozkok, Alaattin Yildiz
Endothelial progenitor cells (EPC) are bone marrow derived or tissue-resident cells that play major roles in the maintenance of vascular integrity and repair of endothelial damage. Although EPCs may be capable of directly engrafting and regenerating the endothelium, the most important effects of EPCs seem to be depended on paracrine effects. In recent studies, specific microvesicles and mRNAs have been found to mediate the pro-angiogenic and regenerative effects of EPCs on endothelium. EPC counts have important prognostic implications in cardiovascular diseases (CVD)...
May 10, 2018: Kidney & Blood Pressure Research
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