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https://www.readbyqxmd.com/read/29152572/a-null-mutation-in-serpine1-protects-against-biological-aging-in-humans
#1
Sadiya S Khan, Sanjiv J Shah, Ekaterina Klyachko, Abigail S Baldridge, Mesut Eren, Aaron T Place, Abraham Aviv, Eli Puterman, Donald M Lloyd-Jones, Meadow Heiman, Toshio Miyata, Sweta Gupta, Amy D Shapiro, Douglas E Vaughan
Plasminogen activator inhibitor-1 (PAI-1) has been shown to be a key component of the senescence-related secretome and a direct mediator of cellular senescence. In murine models of accelerated aging, genetic deficiency and targeted inhibition of PAI-1 protect against aging-like pathology and prolong life span. However, the role of PAI-1 in human longevity remains unclear. We hypothesized that a rare loss-of-function mutation in SERPINE1 (c.699_700dupTA), which encodes PAI-1, could play a role in longevity and metabolism in humans...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29151077/weight-loss-dependent-and-independent-effects-of-moderate-calorie-restriction-on-endothelial-cell-markers-in-obesity
#2
K Korybalska, J Luczak, E Swora-Cwynar, A Kanikowska, N Czepulis, D Kanikowska, H Skalisz, A Breborowicz, M Grzymislawski, J Witowski
Endothelial cell dysfunction in obesity can be reduced by calorie restriction (CR), however it is unclear whether this benefit requires a concomitant weight loss or is it simply related to the reduced calorie intake per se. In our study serum was drawn from 41 obese women who were undergoing an 8-week dietary intervention with 15 - 30% energy deficit, and from 48 age- and sex-matched controls of normal weight. Serum was analysed for biomarkers of endothelial cell function, oxidative stress and inflammation...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29143991/genetic-and-non-genetic-risk-factors-for-pre-eclampsia-an-umbrella-review-of-systematic-reviews-and-meta-analyses-of-observational-studies
#3
REVIEW
Konstantinos Giannakou, Evangelos Evangelou, Stefania I Papatheodorou
OBJECTIVE: To summarize evidence from the literature on the risk factors associated with preeclampsia, assess the presence of statistical biases and identify associations with robust evidence. METHODS: We searched PubMed and ISI Web of Science from inception to October, 2016, to identify systematic reviews and meta-analyses of observational studies examining associations between genetic and non-genetic risk factors for preeclampsia. For each meta-analysis we estimated the summary effect size by random-effects and fixed-effects models, the 95% confidence interval and the 95% prediction interval...
November 16, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29135477/thrombin-potential-and-traditional-coagulation-assay-are-they-useful-in-exploring-recurrent-pregnancy-loss-risk
#4
Ilaria Romagnuolo, Monica Attanasio, Mauro Cozzolino, Enrichetta Paladino, Giancarlo Castaman, Maria E Coccia, Cinzia Fatini
: An adequate hemostatic balance is mandatory to get successful pregnancy. Obstetric complications, such as recurrent pregnancy loss (RPL), might be due to an impairment of placental perfusion possibly related to an underlying prothrombotic status. In this study, we used the global coagulation assay, calibrated automated thrombography and traditional coagulation assay to search for a possible underlying hypercoagulable status in women with history of RPL compared with uneventful pregnancy women. Thrombin generation, Fibrinogen, factor VIII (FVIII), Plasminogen Activator Inhibitor-1 (PAI-1) and von Willebrand factor levels were analyzed in 92 not pregnant unexplained RPL and 64 uneventful pregnancy women...
November 10, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/29127274/effect-of-hydrogen-rich-saline-on-postoperative-intra-abdominal-adhesion-bands-formation-in-mice
#5
Zhong Liu, Sanfang Cheng, Changwei Gu, Honghong Pei, Xin Hong
BACKGROUND Postsurgical peritoneal adhesions (PPAs) are pathologic fibrous bands within the peritoneal cavity. The aim of this study was to investigate the protective effect of hydrogen-rich saline (HRS) on PPAs formation in mice. MATERIAL AND METHODS Adhesions were induced in mice using the cecum rubbing model. The mice were allocated into 4 groups: control sham group without cecum rubbing; PPA group with saline applied intraperitoneally (i.p.) daily after cecum rubbing; PPA+HRS (5) group with 5 ml/kg of HRS applied i...
November 11, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29127268/sickle-mice-are-sensitive-to-hypoxia-ischemia-induced-stroke-but-respond-to-tissue-type-plasminogen-activator-treatment
#6
Yu-Yo Sun, Jolly Lee, Henry Huang, Mary B Wagner, Clinton H Joiner, David R Archer, Chia-Yi Kuan
BACKGROUND AND PURPOSE: The effects of lytic stroke therapy in patients with sickle cell anemia are unknown, although a recent study suggested that coexistent sickle cell anemia does not increase the risk of cerebral hemorrhage. This finding calls for systemic analysis of the effects of thrombolytic stroke therapy, first in humanized sickle mice, and then in patients. There is also a need for additional predictive markers of sickle cell anemia-associated vasculopathy. METHODS: We used Doppler ultrasound to examine the carotid artery of Townes sickle mice tested their responses to repetitive mild hypoxia-ischemia- and transient hypoxia-ischemia-induced stroke at 3 or 6 months of age, respectively...
November 10, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29120134/bone-mineral-density-in-relation-to-metabolic-syndrome-components-in-postmenopausal-women-with-diabetes-mellitus-type-2
#7
Ines Bilić-Ćurčić, Sandra Makarović, Ivan Mihaljević, Maja Franceschi, Tomislav Jukić
Diabetes mellitus type 2 is associated with greater bone mineral density (BMD) due to obesity, although rapid bone loss observed over time could be explained by elevated chronic inflammation. The objective of this study was to investigate the relationship between central adiposity and hyperinsulinemia, as well as inflammation markers with vertebral and femoral BMD and bone turnover markers in postmenopausal women with type 2 diabetes. Femoral and vertebral BMD, osteocalcin, pyrilinks D, beta-CrossLaps (B-CTx), insulin, C-reactive protein (CRP), fibrinogen and plasminogen activator inhibitor-1 (PAI-1) were measured in 114 postmenopausal female patients with diabetes type 2...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29118060/association-between-inflammatory-markers-and-progression-to-kidney-dysfunction-examining-different-assessment-windows-in-patients-with-type-1-diabetes
#8
Nathaniel L Baker, Kelly J Hunt, Danielle R Stevens, Gabor Jarai, Glenn D Rosen, Richard L Klein, Gabriel Virella, Maria F Lopes-Virella
OBJECTIVE: To determine whether biomarkers of inflammation and endothelial dysfunction are associated with the development of kidney dysfunction and the time frame of their association. RESEARCH DESIGN AND METHODS: Biomarkers were measured at four time points during 28 years of treatment and follow-up in patients with type 1 diabetes in the DCCT/EDIC cohort. In addition to traditional biomarkers of inflammation (C-reactive protein and fibrinogen), we measured interleukin-6 (IL-6) and soluble tumor necrosis factor receptors 1 and 2 (sTNFR-1/2), markers of endothelial dysfunction (soluble intracellular adhesion molecule-1, vascular cell adhesion molecule-1, and E-selectin [sE-selectin]), and fibrinolysis (total and active plasminogen activator inhibitor-1 [PAI-1])...
November 8, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29114092/inhibition-of-cd147-cluster-of-differentiation-147-ameliorates-acute-ischemic-stroke-in-mice-by-reducing-thromboinflammation
#9
Rong Jin, Adam Y Xiao, Rui Chen, D Neil Granger, Guohong Li
BACKGROUND AND PURPOSE: Inflammation and thrombosis currently are recognized as critical contributors to the pathogenesis of ischemic stroke. CD147 (cluster of differentiation 147), also known as extracellular matrix metalloproteinase inducer, can function as a key mediator of inflammatory and immune responses. CD147 expression is increased in the brain after cerebral ischemia, but its role in the pathogenesis of ischemic stroke remains unknown. In this study, we show that CD147 acts as a key player in ischemic stroke by driving thrombotic and inflammatory responses...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29111023/can-fibrinolytic-system-components-explain-cognitive-impairment-in-multiple-sclerosis
#10
María Yaiza Pérez-Martín, Montserrat González-Platas, Alejandro Jiménez-Sosa, Julio Plata-Bello, Francisco Javier Carrillo-Padilla, Andrés Franco-Maside, Pablo Eguia-Del Río
BACKGROUND: The fibrinolytic system is capable of modulating inflammatory and degenerative events within the central nervous system. Specifically, the plasminogen activator inhibitor-1 (PAI-1) has been associated with different pathological conditions in multiple sclerosis (MS) and its role in cognitive functioning is also known. OBJECTIVES AND METHODS: To study the association between plasma levels and the polymorphic variants of the PAI-1 gene and cognitive performance in MS...
November 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29103948/metabolic-stress-and-inflammatory-biomarker-responses-to-glucose-administration-in-fischer-344-rats-intraperitoneal-vs-oral-delivery
#11
Shinjini Pilon, Alison C Holloway, Errol M Thomson
INTRODUCTION: Metabolic effects of anthropogenic chemicals are a focus of environmental health research due to the significant public health implications. Conventional glucose tolerance tests (GTTs) do not generally examine multiple metabolic, inflammatory, and endocrine factors; however, responses to exogenous glucose can provide insight into mode-of-action and disease processes, and warrant consideration in developing models for toxicological assessment. METHODS: GTTs were conducted on male Fischer-344 rats to 1) assess the feasibility of measuring multiple analytes in small sample volumes; 2) monitor analyte response; and 3) determine whether route of glucose delivery (oral, OGTT vs...
November 2, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29099463/associations-of-insulin-resistance-and-glycemia-with-liver-enzymes-in-hispanic-latino-youths-results-from-the-hispanic-community-children-s-health-study-study-of-latino-youth-sol-youth
#12
Christina M Parrinello, Bryan J Rudolph, Mariana Lazo, Linda C Gallo, Bharat Thyagarajan, Scott J Cotler, Qibin Qi, Tossaporn Seeherunvong, Denise C Vidot, Howard D Strickler, Robert C Kaplan, Carmen R Isasi
BACKGROUND: Associations of insulin resistance and hyperglycemia with a panel of liver enzymes have not been well studied in a young, heterogenous Hispanic/Latino population. We aimed to assess the associations of insulin resistance and glycemia with nonalcoholic fatty liver disease (NAFLD), as measured by liver enzymes and the pediatric NAFLD fibrosis index (PNFI), and whether these associations are modified by body mass index and mediated by inflammation or endothelial dysfunction. MATERIALS AND METHODS: We conducted a cross-sectional study of 1317 boys and girls aged 8 to 16 years from the Hispanic Community Children's Health Study/Study of Latino Youth...
November 3, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29097819/mechanisms-of-plasminogen-activator-inhibitor-1-action-in-stromal-remodeling-and-related-diseases
#13
Jelena Milenkovic, Maja Milojkovic, Tatjana Jevtovic Stoimenov, Boris Djindjic, Edita Miljkovic
Plasminogen activator inhibitor type 1 (PAI-1) is the main physiologic inhibitor of fibrinolysis. However, it is also involved in many physiological processes such as extracellular matrix (ECM) proteolysis and remodeling, cell adhesion, motility, and apoptosis, angiogenesis, etc. The aim of the study was to summarize current knowledge and gain insights into the mechanisms of PAI-1 action in the processes of stromal remodeling and diseases with considerable matrix pathologies (atherosclerosis, tissue fibrosis, cancer metastasis, pregnancy related complications, etc)...
November 2, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29096169/lunasin-abrogates-monocytes-to-endothelial-cells
#14
Yongjun Zhu, Hui Li, Xuezhen Wang
The adherence of monocytes to endothelial cells plays a causal role in the early development of atherosclerosis and is driven by several inflammatory stimuli, which includes oxidized low-density lipoprotein (ox-LDL). Lunasin, a natural peptide identified in soybean seeds, soy-derived food products, other grains and herbal plants, has been found to exert numerous biological activities, including anti-inflammatory and antioxidant properties. However, little is known regarding the mechanism of action of lunasin in ox-LDL-induced endothelial inflammation...
October 30, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29093435/recurrent-thrombosis-a-case-of-hereditary-thromboembolism
#15
Maria Concetta Giofrè, Francesca Napoli, Daniela La Rosa, Alessia Caruso, Natascia Laganà, Lucia Orlando Settembrini, Antonino Saitta, Antonio Giovanni Versace
BACKGROUND Thrombophilia is a predisposition to thrombosis. Genetic causes include antithrombin III, protein C, protein S, factor V Leiden, prothrombin 20210A allele, and MTHFR mutations. Other genetic factors causing thrombosis and pulmonary embolism have been identified in recent studies, including 4G/4G polymorphism of the PAI-1 gene. CASE REPORT A patient with a personal and family history of recurrent thrombosis and pulmonary embolism was admitted to our Internal Medicine Department. After the most common acquired risk factors for thromboembolism were ruled out, the patient and her family members underwent genetic diagnostic testing...
November 2, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29075306/postprandial-low-grade-inflammation-does-not-specifically-require-tlr4-activation-in-the-rat
#16
Dominique Hermier, Véronique Mathé, Annaïg Lan, Clélia Santini, Annie Quignard-Boulangé, Jean-François Huneau, François Mariotti
BACKGROUND: Toll-like receptor 4 (TLR4), an innate immune receptor, is suspected to play a key role in the postprandial inflammation that is induced by a high-fat meal rich in saturated fatty acids (SFA). Our objective was to test this hypothesis by using a specific competitive inhibitor of TLR4 (INH) vs vehicle (VEH) administered immediately before a high-SFA meal in rats. METHODS: First, in a cross-over kinetic study of 12 rats receiving INH and VEH i.v. 10 min before the test meal, we measured plasma inflammatory and vascular markers for 6 h...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29074040/heart-failure-and-inflammation-related-biomarkers-as-predictors-of-new-onset-diabetes-in-the-general-population
#17
Navin Suthahar, Wouter C Meijers, Frank P Brouwers, Hiddo J L Heerspink, Ron T Gansevoort, Pim van der Harst, Stephan J L Bakker, Rudolf A de Boer
BACKGROUND: There is a strong reciprocal relationship between heart failure (HF) and diabetes mellitus (DM). Shared pathophysiological mechanisms might be a possible explanation. Therefore, we hypothesised that biomarkers linked to HF would also predict new-onset type 2 DM in the general population. METHODS AND RESULTS: We utilized the Prevention of Vascular and Renal End-stage Disease (PREVEND) cohort (mean age 48.9years, 51% female) to study the relationship between HF and DM in 7953 participants free of baseline HF and DM...
October 16, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29067254/temporal-trend-of-autonomic-nerve-function-and-hsp27-mif-and-pai-1-in-type-1-diabetes
#18
Malin Zimmerman, Sara Rolandsson Enes, Hanna Skärstrand, Kaveh Pourhamidi, Anders Gottsäter, Per Wollmer, Olov Rolandsson, Gunilla Westergren-Thorsson, Lars B Dahlin
AIM: Diabetes mellitus type 1 (T1D) has numerous complications including autonomic neuropathy, i.e. dysfunction of the autonomous nervous system. This study focuses on Heat Shock Protein 27 (HSP27), Macrophage Migration Inhibitory Factor (MIF), Plasminogen Activator Inhibitor-1 (PAI-1) and HbA1c and their possible roles in effects of diabetes on the autonomic nervous system. METHODS: Patients with T1D (n = 32, 41% women) were recruited in 1985 and followed up on four occasions (1989, 1993, 1998, and 2005)...
June 2017: Journal of Clinical & Translational Endocrinology
https://www.readbyqxmd.com/read/29066600/evidence-that-differences-in-fructosamine-3-kinase-activity-may-be-associated-with-the-glycation-gap-in-human-diabetes
#19
Simon J Dunmore, Amr S Al-Derawi, Ananth U Nayak, Aruna Narshi, Alan M Nevill, Anne Hellwig, Andrew Majebi, Paul Kirkham, James E Brown, Baldev M Singh
The phenomenon of a discrepancy between glycated haemoglobin levels and other indicators of average glycaemia may be due to many factors but can be measured as the glycation gap (GGap). This GGap is associated with differences in complications in patients with diabetes and may possibly be explained by dissimilarities in deglycation in turn leading to altered production of Advanced Glycation End (AGE) products. We hypothesised that variations in the level of the deglycating enzyme Fructosamine-3-kinase (FN3K) might be associated with the GGap...
October 24, 2017: Diabetes
https://www.readbyqxmd.com/read/29062341/changes-in-mediators-of-inflammation-and-pro-thrombosis-after-12-months-of-dietary-modification-in-adults-with-metabolic-syndrome
#20
S K Rahamon, U A Fabian, M A Charles-Davies, J A Olaniyi, A A Fasanmade, K S Akinlade, O E Oyewole, M O Owolabi, J R Adebusuyi, O O Hassan, B M Ajobo, M O Ebesunun, K Adigun, O O Popoola, W Omiyale, O G Arinola, E O Agbedana
OBJECTIVE: This study evaluated the effects of a 12-month dietary modification on indices of inflammation and pro-thrombosis in adults with metabolic syndrome (MS). MATERIALS AND METHODS: This longitudinal study involved 252 adults with MS recruited from the Bodija market, Ibadan and its environs. Participants were placed on 20%, 30% and 50% calories obtained from protein, total fat and carbohydrate respectively and were followed up monthly for 12 months. Anthropometry and blood pressure were measured using standard methods...
June 2017: African Health Sciences
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