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1.
  • Andersson, Agneta, et al. (author)
  • Whole-grain foods do not affect insulin sensitivity or markers of lipid peroxidation and inflammation in healthy, moderately overweight subjects
  • 2007
  • In: Journal of Nutrition. - 0022-3166 .- 1541-6100. ; 137:6, s. 1401-1407
  • Journal article (peer-reviewed)abstract
    • High intakes of whole grain foods are inversely related to the incidence of coronary heart diseases and type 2 diabetes, but the mechanisms remain unclear. Our study aimed to evaluate the effects of a diet rich in whole grains compared with a diet containing the same amount of refined grains on insulin sensitivity and markers of lipid peroxidation and inflammation. In a randomized crossover study, 22 women and 8 men (BMI 28 +/- 2) were given either whole-grain or refined-grain products (3 bread slices, 2 crisp bread slices, 1 portion muesli, and 1 portion pasta) to include in their habitual daily diet for two 6-wk periods. Peripheral insulin sensitivity was determined by euglycemic hyperinsulinemic clamp tests. 8-Iso-prostaglandin F(2alpha) (8-iso PGF(2alpha)), an F(2)-isoprostane, was measured in the urine as a marker of lipid peroxidation, and highly sensitive C-reactive protein and IL-6 were analyzed in plasma as markers of inflammation. Peripheral insulin sensitivity [mg glucose . kg body wt(-1) . min(-1) per unit plasma insulin (mU/L) x 100] did not improve when subjects consumed whole-grain products (6.8 +/- 3.0 at baseline and 6.5 +/- 2.7 after 6 wk) or refined products (6.4 +/- 2.9 and 6.9 +/- 3.2, respectively) and there were no differences between the 2 periods. Whole-grain consumption also did not affect 8-iso-PGF(2alpha) in urine, IL-6 and C-reactive protein in plasma, blood pressure, or serum lipid concentrations. In conclusion, substitution of whole grains (mainly based on milled wheat) for refined-grain products in the habitual daily diet of healthy moderately overweight adults for 6-wk did not affect insulin sensitivity or markers of lipid peroxidation and inflammation.
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2.
  • Basu, Samar, et al. (author)
  • Association between oxidative stress and bone mineral density
  • 2001
  • In: Biochemical and Biophysical Research Communications - BBRC. - : Elsevier BV. - 0006-291X .- 1090-2104. ; 288:1, s. 275-9
  • Journal article (peer-reviewed)abstract
    • Free radicals have been shown to be involved in bone resorption in vitro and in rodents. We studied the effect of oxidative stress on bone mineral density (BMD) in 48 women and 53 men from a population-based study. The levels of 8-iso-PGF(2alpha) (a major F(2)-isoprostane and a biomarker of oxidative stress) and a control, 15-keto-dihydro-PGF(2alpha) (a biomarker of inflammatory response), were measured in urinary samples and their association with BMD and quantitative ultrasound (QUS) measurements were examined. In multivariate linear regression analyses, 8-iso-PGF(2alpha) levels were negatively associated with both BMD and QUS. In contrast, no association was found for 15-keto-dihydro-PGF(2alpha). Our findings establish a biochemical link between increased oxidative stress and reduced bone density and provide a rational for further studies investigating the role of pro- and antioxidants in osteoporosis. Copyright 2001 Academic Press.
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3.
  • Basu, Samar (author)
  • Bioactive eicosanoids : Role of prostaglandin F-2 alpha and F-2-isoprostanes in inflammation and oxidative stress related pathology
  • 2010
  • In: Molecules and Cells. - : Springer Science and Business Media LLC. - 1016-8478 .- 0219-1032. ; 30:5, s. 383-391
  • Research review (peer-reviewed)abstract
    • Oxidative stress and inflammation are supposed to be the key players of several acute and chronic diseases, and also for progressive aging process. Eicosanoids, especially prostaglandin F-2 alpha (PGF(2 alpha)) and F-2-isoprostanes are endogenous compounds that are involved both in physiology and the above mentioned pathologies. These compounds are biosynthesized mainly from esterified arachidonic acid through both enzymatic and non-enzymatic free radical-catalysed reactions in vivo, respectively. They have shown to possess potent biological activities in addition to their application as biomarkers of oxidative stress and inflammation. Recent advancement of methodologies has made it possible to quantify these compounds more reliably and apply them in various in vivo studies successfully. Today, experimental and clinical studies have revealed that both PGF(2 alpha) and F-2-isoprostanes are involved in severe acute or chronic inflammatory conditions such as rheumatic diseases, asthma, risk factors of atherosclerosis, diabetes, ischemia-reperfusion, septic shock and many others. These evidences promote that assessment of bioactive PGF(2 alpha) and F-2-isoprostanes simultaneously in body fluids offers unique non-invasive analytical opportunity to study the function of these eicosanoids in physiology, oxidative stress-related and inflammatory diseases, and also in the determination of potency of various radical scavengers, anti-inflammatory compounds, drugs, antioxidants and diet.
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4.
  • Basu, Samar, et al. (author)
  • Bioaktiva isoprostaner : nya markörer för oxidativ stress och inflammationsrelaterade sjukdomar
  • 2009
  • In: Läkartidningen. - 0023-7205 .- 1652-7518. ; 106:5, s. 274-278
  • Journal article (peer-reviewed)abstract
    • Oxidativ stress (fria radikaler) tros vara orsaken till åldrande och flera sjukdomar, däri bland arterioskleros, men det har saknats en pålitlig metodik för att påvisa aktiviteten av fria radikaler in vivo. Här presenteras isoprostaner som nya och tillförlitliga markörer för mätning av oxidativ stress in vivo genom indirekt mätning av radikalreaktioner. Isoprostaner kan ses i ökad mängd vid flera sjukdomstillstånd som är associerade med oxidativ stress och inflammation, till exempel kardiovaskulära sjukdomar, sjukdomar som är associerade med en ökad kardiovaskulär risk samt lungsjukdomar. Mätning av isoprostaner kan vidare ge ökad kunskap om fria radikalers fysiologiska roll och antioxidanternas roll vid sjukdomar samt vara ett verktyg vid utveckling av nya läkemedel mot oxidativ stress.
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5.
  • Basu, Samar, et al. (author)
  • Biomarkers of free radical injury during spinal cord ischemia
  • 2001
  • In: FEBS Letters. - 0014-5793 .- 1873-3468. ; 508:1, s. 36-38
  • Journal article (peer-reviewed)abstract
    • Plasma and urinary levels of 8-iso-PGF(2alpha) and 15-keto-dihydro-PGF(2alpha) were analysed at baseline and during the ischemia-reperfusion period in experimental spinal cord ischemia. A significant and immediate increase of 8-iso-PGF(2alpha) in plasma at the start and up to 60 min, and in the urine at 90-150 min following ischemia indicate an association of oxidative injury. The inflammatory response indicator 15-keto-dihydro-PGF(2alpha) in plasma increased significantly at the start and up to 60 min after ischemia. No such increase was seen in animals with no spinal cord ischemia. Thus, free radical mediated and cyclooxygenase catalysed products of arachidonic acid are increased during spinal cord ischemia as a consequence of oxidative injury and inflammation.
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  • Basu, Samar, et al. (author)
  • Cellular Expression of Cyclooxygenase, Aromatase, Adipokines, Inflammation and Cell Proliferation Markers in Breast Cancer Specimen
  • 2015
  • In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 10:10
  • Journal article (peer-reviewed)abstract
    • Current evidences suggest that expression of Ki67, cyclooxygenase (COX), aromatase, adipokines, prostaglandins, free radicals, beta-catenin and alpha-SMA might be involved in breast cancer pathogenesis. The main objective of this study was to compare expression/localization of these potential compounds in breast cancer tissues with tissues collected adjacent to the tumor using immunohistochemistry and correlated with clinical pathology. The breast cancer specimens were collected from 30 women aged between 49 and 89 years who underwent breast surgery following cancer diagnosis. Expression levels of molecules by different stainings were graded as a score on a scale based upon staining intensity and proportion of positive cells/area or individually. AdipoR1, adiponectin, Ob-R, leptin, COX-1, COX-2, aromatase, PGF(2a), F-2-isoprostanes and alpha-SMA were localised on higher levels in the breast tissues adjacent to the tumor compared to tumor specimens when considering either score or staining area whereas COX-2 and AdipoR2 were found to be higher considering staining intensity and Ki67 on score level in the tumor tissue. There was no significant difference observed on beta-catenin either on score nor on staining area and intensity between tissues adjacent to the tumor and tumor tissues. A positive correlation was found between COX-1 and COX-2 in the tumor tissues. In conclusion, these suggest that Ki67, COXs, aromatase, prostaglandin, free radicals, adipokines, beta-catenin and alpha-SMA are involved in breast cancer. These further focus the need of examination of tissues adjacent to tumor, tumor itself and compare them with normal or benign breast tissues for a better understanding of breast cancer pathology and future evaluation of therapeutic benefit.
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10.
  • Basu, Samar, et al. (author)
  • Cytokine-mediated inflammation is independently associated with insulin sensitivity measured by the euglycemic insulin clamp in a community-based cohort of elderly men
  • 2011
  • In: International Journal of Clinical and Experimental Medicine. - : E-Century Publishing. - 1940-5901. ; 4:2, s. 164-168
  • Journal article (peer-reviewed)abstract
    • Both clinical and experimental studies suggest a close relation between an inflammatory state and insulin resistance. We investigated the association between cytokine-mediated inflammation (high sensitivity C reactive protein [hsCRP] and interleukin [IL] 6) and insulin sensitivity (insulin-mediated glucose disposal rate, assessed by the euglycemic insulin clamp) in a community-based cohort, with subgroup analyses of normal weight individuals without diabetes mellitus and metabolic syndrome (NCEP). hsCRP and IL- 6 were inversely associated with insulin sensitivity (multivariable-adjusted regression coefficient for 1-SD increase of hsCRP -0.12 (-0.21-(-0.03), p=0.01) and of IL-6 - 0.11 (-0.21-(-0.02), p=0.01) in models adjusting for age and components of the metabolic syndrome (systolic and diastolic blood pressure, antihypertensive drugs, HDL-cholesterol, triglycerides, fasting plasma glucose, waist circumference). The multivariable-adjusted association between hsCRP, IL-6 and insulin sensitivity were of a similar magnitude in normal weight individuals without diabetes and without the metabolic syndrome. Our data show that cytokine -mediated subclinical inflammation is independently associated with decreased insulin sensitivity also in apparently metabolically healthy normal weight individuals, indicating that the interplay between inflammatory processes and insulin resistance is present already in the early stages of the development of glucometabolic disease. (IJCEM1012002).
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  • Basu, Samar, et al. (author)
  • Development of a novel biomarker of free radical damage in reperfusion injury after cardiac arrest
  • 2000
  • In: FEBS Letters. - 0014-5793 .- 1873-3468. ; 470:1, s. 1-6
  • Journal article (peer-reviewed)abstract
    • In a porcine model of cardiopulmonary resuscitation (CPR), we investigated changes in the plasma levels of 8-iso-PGF(2alpha), a marker for oxidative injury, and 15-keto-dihydro-PGF(2alpha), an inflammatory response indicator during the post-resuscitation period after cardiac arrest. Twelve piglets were subjected to either 2 or 5 min (VF2 and VF5 group) of ventricular fibrillation (VF) followed by 5 min of closed-chest CPR. Six piglets without cardiac arrest were used as controls. In VF5 group, 8-iso-PGF(2alpha) in the jugular bulb plasma (draining the brain) increased four-fold. Jugular bulb 8-iso-PGF(2alpha) in the control group remained unchanged. The 15-keto-dihydro-PGF(2alpha) also increased four-fold in the VF5 group. Thus, 8-iso-PGF(2alpha) and 15-keto-dihydro-PGF(2alpha) measurements in jugular bulb plasma may be used as biomarkers for quantification of free radical catalyzed oxidative brain injury and inflammatory response in reperfusion injury
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  • Basu, Samar, et al. (author)
  • Effects of melagatran, a novel direct thrombin inhibitor, during experimental septic shock
  • 2000
  • In: Expert Opinion on Investigational Drugs. - : Informa Healthcare. - 1354-3784 .- 1744-7658. ; 9:5, s. 1129-1137
  • Journal article (peer-reviewed)abstract
    • Sepsis and endotoxaemia initiate the generation of thrombin, which is responsible for the conversion of fibrinogen to fibrin, platelet aggregation and acts as an inflammatory mediator affecting numerous types of cells, including myocardial, smooth muscle and endothelial cells. Human Gram-negative septic shock, frequently seen in intensive care units, is a condition with high mortality. This condition can be replicated in the endotoxaemic pig. As many of the toxic effects of sepsis are due to thrombin generation, it was of interest to study, using this porcine experimental septic shock model, whether inhibition of thrombin could alleviate the effects of endotoxaemia. For this purpose melagatran, a direct synthetic thrombin inhibitor with a molecular weight of 429 Da, was employed. Melagatran does not significantly interact with any other enzymes in the coagulation cascade or fibrinolytic enzymes aside from thrombin. Furthermore, melagatran does not require endogenous co-factors such as antithrombin or heparin co-Factor II for its antithrombin effect, which is important, as these inhibitors are often consumed in septic patients. We have shown that melagatran exerts a beneficial effect on renal function, as evaluated by plasma creatinine and urinary output, during experimental septic shock. These effects were most pronounced during the later phase of the experimental period, after the infusion of melagatran had been discontinued. Prevention of intrarenal coagulation may be attributable to this finding. In addition, melagatran had beneficial effects on systemic haemodynamics (left ventricular stroke work index, pulmonary capillary wedge pressure and systemic vascular resistance index) in endotoxaemic pigs. This result may be explained by the ability of melagatran to inhibit thrombin, thereby counteracting thrombin's cellular effects. Thus, it can be seen, using this experimental model of septic shock, that melagatran may help to alleviate some of the damaging effects of endotoxaemia, although more research is required to test this further.
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  • Basu, Samar, et al. (author)
  • Eicosanoids and Adipokines in Breast Cancer : From Molecular Mechanisms to Clinical Considerations
  • 2013
  • In: Antioxidants and Redox Signaling. - : Mary Ann Liebert Inc. - 1523-0864 .- 1557-7716. ; 18:3, s. 323-360
  • Research review (peer-reviewed)abstract
    • Chronic inflammation is one of the foremost risk factors for different types of malignancies, including breast cancer. Additional risk factors of this pathology in postmenopausal women are weight gain, obesity, estrogen secretion, and an imbalance in the production of adipokines, such as leptin and adiponectin. Various signaling products of transcription factor, nuclear factor-kappaB, in particular inflammatory eicosanoids, reactive oxygen species (ROS), and cytokines, are thought to be involved in chronic inflammation-induced cancer. Together, these key components have an influence on inflammatory reactions in malignant tissue damage when their levels are deregulated endogenously. Prostaglandins (PGs) are well recognized in inflammation and cancer, and they are solely biosynthesized through cyclooxygenases (COXs) from arachidonic acid. Concurrently, ROS give rise to bioactive isoprostanes from arachidonic acid precursors that are also involved in acute and chronic inflammation, but their specific characteristics in breast cancer are less demonstrated. Higher aromatase activity, a cytochrome P-450 enzyme, is intimately connected to tumor growth in the breast through estrogen synthesis, and is interrelated to COXs that catalyze the formation of both inflammatory and anti-inflammatory PGs such as PGE(2), PGF(2 alpha), PGD(2), and PGJ(2) synchronously under the influence of specific mediators and downstream enzymes. Some of the latter compounds upsurge the intracellular cyclic adenosine monophosphate concentration and appear to be associated with estrogen synthesis. This review discusses the role of COX- and ROS-catalyzed eicosanoids and adipokines in breast cancer, and therefore ranges from their molecular mechanisms to clinical aspects to understand the impact of inflammation.
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16.
  • Basu, Samar, et al. (author)
  • Evidence for Time-dependent Maximum Increase ofFree Radical Damage and Eicosanoid Formation in theBrain as Related to Duration of Cardiac Arrest andCardio-pulmonary Resuscitation
  • 2003
  • In: Free radical research. - : Informa UK Limited. - 1071-5762 .- 1029-2470. ; 37:3, s. 251-256
  • Journal article (peer-reviewed)abstract
    • Recovery of neurological function in patients following cardiac arrest and cardiopulmonary resuscitation (CPR) is a complex event. Free radical induced oxidative stress is supposed to be involved in this process. We studied levels of 8-iso-PGF2alpha (indicating oxidative injury) and 15-keto-dihydro-PGF2alpha (indicating inflammatory response) in venous plasma obtained from the jugular bulb in a porcine model of experimental cardiopulmonary resuscitation (CPR) where 2, 5, 8, 10 or 12 min of ventricular fibrillation (VF) was followed by 5 or 8 min of closed-chest CPR. A significant increase of 8-iso-PGF2alpha was observed immediately following restoration of spontaneous circulation in all experiments of various duration of VF and CPR. No such increase was seen in a control group. When compared between the groups there was a duration-dependent maximum increase of 8-iso-PGF2alpha which was greatest in animals subjected to the longest period (VF12 min + CPR8 min) of no or low blood flow. In contrast, the greatest increase of 15-keto-dihydro-PGF2alpha was observed in the 13 min group (VF8 min + CPR5 min). Thus, a time-dependent cerebral oxidative injury occurs in conjunction which cardiac arrest and CPR.
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  • Basu, Samar (author)
  • F2-isoprostane induced prostaglandin formation in the rabbit
  • 2006
  • In: Free radical research. - : Informa Healthcare. - 1071-5762 .- 1029-2470. ; 40:3, s. 273-277
  • Journal article (peer-reviewed)abstract
    • F2-isoprostanes, non-enzymatic free radical mediated products of arachidonic acid, have shown to form during various oxidant stress status and have potent biological effects. This study investigates to what extent 8-iso-PGF2α (a major F2-isoprostane), a bioactive product of lipid peroxidation can modify endogenous prostaglandin F2α (PGF2α) formation since prostaglandins are inflammatory as well as potent vasoregulatory substances that modulate diverse important physiological functions, and also form during acute and chronic inflammation. An immediate appearance and disappearance of 8-iso-PGF2α was seen in both plasma and urine within a short interval after i.v. administration of 43 μg/kg of 8-iso-PGF2α to the rabbits. A successive but differential formation of PGF2α resulted in a rapid and pulsatile increase of plasma 15-keto-dihydro-PGF2α, a major metabolite of primary PGF2α. Later, this compound was excreted efficiently as intact compound into the urine during the 3 h of experiment. A 8-fold increase of PGF2α metabolite in plasma at 10 min and 12-fold increase in the urine at 30–60 after the i.v. administration of 8-iso-PGF2α was observed which continued throughout the 3 h of experiment. This observation suggests that pharmacologically administered or endogenously produced 8-iso-PGF2α during oxidant stress induces prostaglandin formation presumbly through the classical cyclooxygenase-catalysed arachidonic acid oxidation which might be inflammatory itself to the cells and exerts further vasoconstrictive effects.
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  • Basu, Samar (author)
  • F2-isoprostanes in human health and diseases : from molecular mechanisms to clinical implications
  • 2008
  • In: Antioxidants and Redox Signaling. - : Mary Ann Liebert. - 1523-0864 .- 1557-7716. ; 10:8, s. 1405-1434
  • Research review (peer-reviewed)abstract
    • Oxidative stress is implicated as one of the major underlying mechanisms behind many acute and chronic diseases, and involved in normal aging. However, the measurement of free radicals or their end products is complicated. Thus, proof of association of free radicals in pathologic conditions has been absent. Isoprostanes are prostaglandin-like bioactive compounds that are biosynthesized in vivo independent of cyclooxygenases, principally through free-radical catalyzation of arachidonic acid. Isoprostanes are now considered to be reliable biomarkers of oxidative stress, as evidenced by an autonomous study organized recently by the National Institutes of Health (NIH) in the United States. A number of these compounds have potent biologic activities such as vasoconstrictive and certain inflammatory properties. Isoprostanes are involved in many human diseases. Additionally, elevated levels of F2-isoprostanes have been seen in normal human pregnancy and after intake of some fatty acids, but their physiologic assignments have not yet been distinctive. This evidence indicates that measurement of bioactive F2-isoprostanes in body fluids offers a unique noninvasive analytic utensil to study the role of free radicals in physiology, oxidative stress–related diseases, experimental acute or chronic inflammatory conditions, and also in the assessment of various antioxidants, radical scavengers, and drugs.
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  • Basu, Samar (author)
  • Fatty acid oxidation and isoprostanes : oxidative strain and oxidative stress
  • 2010
  • In: Prostaglandins, Leukotrienes and Essential Fatty Acids. - : Elsevier BV. - 0952-3278 .- 1532-2823. ; 82:4-6, s. 219-225
  • Journal article (peer-reviewed)abstract
    • Oxidative stress is implicated as one of the key causes underlying many diseases. Free radicals are important constituents of basal physiology. Assessment of free radicals or the end products of their action has proved to be difficult. Consequently, authentication of the contribution of free radicals to physiology and pathology has usually been equivocal. Isoprostanes are biosynthesized in vivo, predominantly through free radical attack on arachidonic acid and are now regarded as robust biomarkers of oxidative stress in vivo. Isoprostanes are associated with many human diseases, and their concentration is altered over the course of normal human pregnancy, but their (patho)physiological roles have not yet been clearly defined. Measurement of F-2-isoprostanes in body fluids could offer a unique analytical opportunity to study the role of free radicals in physiology and pathophysiology in order to comprehend both oxidative strain and oxidative stress.  
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  • Basu, Samar, et al. (author)
  • Inflammatory F2-isoprostane, prostaglandin F2α, pentraxin 3 levels and breast cancer risk : The Swedish Mammography Cohort
  • 2016
  • In: Prostaglandins, Leukotrienes and Essential Fatty Acids. - : Elsevier BV. - 0952-3278 .- 1532-2823. ; 113, s. 28-32
  • Journal article (peer-reviewed)abstract
    • INTRODUCTION: Breast cancer is a common cancer among women. Identifying cellular participation of F2-isoprostane, prostaglandin F2α (PGF2α) and pentraxin 3 (PTX3) in cancer we evaluated whether their prediagnostic systemic levels that originate from different inflammatory pathways were associated with breast cancer risk.METHODS: Seventy-eight breast cancer cases diagnosed after blood collection and 797 controls from the Swedish Mammography Cohort were analysed for urinary F2-isoprostane, PGF2α and plasma PTX3 levels.RESULTS: None of the biomarkers investigated were significantly associated with breast cancer risk. However, there was the suggestion of an inverse association with PTX3 with multivariable adjusted ORs (95% CI) of 0.56 (95% CI=0.29-1.06) and 0.67 (95% CI=0.35-1.28) for the second and third tertiles, respectively (ptrend=0.20). No associations were observed between F2-isoprostane (OR=0.87; 95% CI=0.48-1.57; ptrend=0.67) and PGF2α metabolite (OR=1.03; 95% CI=0.56-1.88; ptrend=0.91) comparing the top to bottom tertiles.CONCLUSIONS: The systemic levels of F2-isoprostane, PGF2α and PTX3 witnessed in women who later developed breast cancer may not provide prognostic information regarding tumor development in spite of their known involvement in situ cellular context. These observations may indicate that other mechanisms exist in controlling cellular formation of F2-isoprostane, PGF2α and PTX3 and their systemic availability in breast cancer patients.
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  • Basu, Samar, et al. (author)
  • Is There any Role for Serum Cathepsin S, CRP levels on Prognostic Information in Breast Cancer? : The Swedish Mammography Cohort
  • 2015
  • In: Antioxidants and Redox Signaling. - : Mary Ann Liebert Inc. - 1523-0864 .- 1557-7716. ; 23:16, s. 1298-1302
  • Journal article (peer-reviewed)abstract
    • Breast cancer is the most common cancer among women, and both low-grade inflammation and cathepsins might have important roles in breast cancer. We questioned whether prediagnostic circulating levels of C-reactive protein (CRP), cathepsin B and cathepsin S were associated with breast cancer risk. Sixty-nine incident breast cancer cases diagnosed after blood collection and 719 controls from the Swedish Mammography Cohort were analysed for systemic CRP, cathepsin B and cathepsin S. Cathepsin S and inflammation (hsCRP) adjusted cathepsin S were inversely associated with breast cancer risk (cathepsin S: OR for top vs. bottom tertile = 0.46; 95% CI = 0.23-0.92; Ptrend = 0.02; hsCRP adjusted cathepsin S: OR of 0.44; 95% CI = 0.22-0.87; Ptrend = 0.02). hsCRP was significantly associated with increased breast cancer risk (OR for top vs. bottom tertile= 2.01; 95% CI = 1.02-3.95; Ptrend = 0.04). No significant association was observed between cathepsin B and breast cancer risk (OR for top vs. bottom tertile= 0.67; 95% CI = 0.32-1.40; Ptrend = 0.30). These observations lead to hypothesis that levels of cathepsin S and hsCRP observed in women who later developed breast cancer may provide prognostic information regarding tumor development and need to be evaluated in prospective studies.
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