scholarly journals Malondialdehyde in benign prostate hypertrophy: a useful marker?

2003 ◽  
Vol 12 (2) ◽  
pp. 127-128 ◽  
Author(s):  
Rosaria Alba Merendino ◽  
Francesco Salvo ◽  
Antonella Saija ◽  
Giuseppe Di Pasquale ◽  
Antonio Tomaino ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Specific Antigen ◽  
Serum Levels ◽  
Non Invasive ◽  
Common Benign Tumor ◽  
Benign Prostate Hypertrophy ◽  
Healthy Donors ◽  
Benign Prostate ◽  
And Oxidative Stress ◽  
Sensitive Marker

Benign prostate hypertrophy (BPH) is the most common benign tumor in men due to obstruction of the urethra and, finally, uremia. Malondialdehyde (MDA) is a product derived from peroxidation of polyunsaturated fatty acids and related esters. Evaluation of MDA in serum represents a non-invasive biomarker of oxidative stress. Prostate-specific antigen (PSA) is a sensitive marker for prostatic hypertrophy and cancer. We analyzed MDA serum levels to evaluate the oxidative stress in BPH. To this end, 22 BPH patients and 22 healthy donors were enrolled. Data show an increase of MDA level in BPH patients and a positive correlation between PSA and MDA levels. In conclusion, we describe a previously unknown relationship between PSA and MDA as an index of inflammation and oxidative stress in BPH.

scholarly journals Characterisation of the main PSA glycoforms in aggressive prostate cancer

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Anna Gratacós-Mulleras ◽  
Adrià Duran ◽  
Akram Asadi Shehni ◽  
Montserrat Ferrer-Batallé ◽  
Manel Ramírez ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Blood Serum ◽  
Specific Antigen ◽  
Serum Levels ◽  
Neoplastic Progression ◽  
Healthy Individuals ◽  
Hydrophilic Interaction ◽  
Glycosylation Pattern ◽  
Non Invasive ◽  
Benign Prostate

Abstract Serum levels of prostate specific antigen (PSA) are commonly used for prostate cancer (PCa) detection. However, their lack of specificity to distinguish benign prostate pathologies from PCa, or indolent from aggressive PCa have prompted the study of new non-invasive PCa biomarkers. Aberrant glycosylation is involved in neoplastic progression and specific changes in PSA glycosylation pattern, as the reduction in the percentage of α2,6-sialic acid (SA) are associated with PCa aggressiveness. In this study, we have characterised the main sialylated PSA glycoforms from blood serum of aggressive PCa patients and have compared with those of standard PSA from healthy individuals’ seminal plasma. PSA was immunoprecipitated and α2,6-SA were separated from α2,3-SA glycoforms using SNA affinity chromatography. PSA N-glycans were released, labelled and analysed by hydrophilic interaction liquid chromatography combined with exoglycosidase digestions. The results showed that blood serum PSA sialylated glycoforms containing GalNAc residues were largely increased in aggressive PCa patients, whereas the disialylated core fucosylated biantennary structures with α2,6-SA, which are the major PSA glycoforms in standard PSA from healthy individuals, were markedly reduced in aggressive PCa. The identification of these main PSA glycoforms altered in aggressive PCa opens the way to design specific strategies to target them, which will be useful to improve PCa risk stratification.

scholarly journals Amino Acid and Acylcarnitine Levels in Chronic Patients with Schizophrenia: A Preliminary Study

Metabolites ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Irina A. Mednova ◽  
Alexander A. Chernonosov ◽  
Marat F. Kasakin ◽  
Elena G. Kornetova ◽  
Arkadiy V. Semke ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Amino Acid ◽  
Chronic Schizophrenia ◽  
Integrated Approach ◽  
Serum Levels ◽  
Tandem Mass ◽  
Chronic Patients ◽  
Healthy Donors ◽  
Preliminary Study

Amino acids and acylcarnitines play an important role as substrates and intermediate products in most of pathways involved in schizophrenia development such as mitochondrial dysfunction, inflammation, lipid oxidation, DNA damage, oxidative stress, and apoptosis. It seems relevant to use an integrated approach with ‘omics’ technology to study their contribution. The aim of our study was to investigate serum amino acid and acylcarnitine levels in antipsychotics-treated patients with chronic schizophrenia compared with healthy donors. We measured serum levels of 15 amino acids and 30 acylcarnitines in 37 patients with schizophrenia and 36 healthy donors by means of tandem mass spectrometry. In summary, patients with chronic schizophrenia had an altered concentration of a few amino acids and acylcarnitines in comparison to the healthy probands. Further research is needed to assess and understand the identified changes.

scholarly journals Dietary Antioxidant Supplements and Uric Acid in Chronic Kidney Disease: A Review

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1911 ◽  
Author(s):  
Stefanos Roumeliotis ◽  
Athanasios Roumeliotis ◽  
Evangelia Dounousi ◽  
Theodoros Eleftheriadis ◽  
Vassilios Liakopoulos
Keyword(s):  
Oxidative Stress ◽  
Chronic Kidney Disease ◽  
Uric Acid ◽  
Kidney Disease ◽  
Serum Levels ◽  
Maintenance Hemodialysis ◽  
Antioxidant Supplements ◽  
Stage Renal Disease ◽  
End Stage ◽  
And Oxidative Stress

Increased serum levels of uric acid have been associated with the onset and development of chronic kidney disease (CKD), cardiovascular disease, and mortality, through several molecular pathogenetic mechanisms, such as inflammation and oxidative stress. Oxidative stress is present even in the early stages of CKD, progresses parallelly with the deterioration of kidney function, and is even more exacerbated in end-stage renal disease patients undergoing maintenance hemodialysis. Although acting in the plasma as an antioxidant, once uric acid enters the intracellular environment; it behaves as a powerful pro-oxidant. Exogenous intake of antioxidants has been repeatedly shown to prevent inflammation, atherosclerosis and oxidative stress in CKD patients. Moreover, certain antioxidants have been proposed to exert uric acid-lowering properties. This review aims to present the available data regarding the effects of antioxidant supplements on both oxidative stress and uric acid serum levels, in a population particularly susceptible to oxidative damage such as CKD patients.

scholarly journals Hydrostatin-SN10 Ameliorates Pancreatitis-Induced Lung Injury by Affecting IL-6-Induced JAK2/STAT3-Associated Inflammation and Oxidative Stress

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Xuehua Piao ◽  
Yanping Zou ◽  
Xiaodan Sui ◽  
Baohai Liu ◽  
Fanji Meng ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Acute Lung Injury ◽  
Lung Injury ◽  
Serum Levels ◽  
Janus Kinase ◽  
Peptide Sequence ◽  
Stat3 Pathway ◽  
Urinary Amylase ◽  
Cell Changes ◽  
And Oxidative Stress

Hydrostatin-SN1 (peptide sequence, DEQHLETELHTLTSVLTANGFQ), a kind of peptides extracted from snake venom, has been reported to have anti-inflammatory effect, but its truncated mutant hydrostatin-SN10 (peptide sequence, DEQHLETELH) on pancreatitis-induced acute lung injury has not been well documented. Interleukin- (IL-) 6-induced Janus Kinase 2/Signal Transducer and Activator of Transcription 3 (JAK2/STAT3) pathway is involved with inflammatory and oxidative stress activities and may be associated with the pathogenesis of lung injury, and related molecules were measured. Taurocholate-induced pancreatitis associated with acute lung injury was established and treated with hydrostatin-SN10. Pancreatitis was confirmed by measuring the serum levels of amylase, lipase, and trypsinogen and urinary amylase. Lung injury was determined by histologically assessing acinar cell changes. The related molecules of IL-6-induced JAK2/STAT3-associated inflammation and oxidative stress were quantitated by real time-PCR, Western blot, and/or immunochemical assay. Hydrostatin-SN10 reduced the levels of serum amylase, lipase, and trypsinogen and urinary amylase when compared with the model group (p<0.05). Hydrostatin-SN10 significantly inhibited the IL-6-stimulated JAK2/STAT3 pathway and reduced the number of apoptotic cells via the downregulation of caspase 3 and BAX (proapoptotic) and upregulation of Bcl2 (antiapoptotic) (p<0.05). IL-6 induced the increase in the levels of JAK2 and STAT3, which was reversed by hydrostatin-SN10 treatment (p<0.05). In addition, hydrostatin-SN10 reduced the expression of IL-6 and TNF- (tumor necrosis factor-) α and increased the level of IL-10 (p<0.05). On the other hand, hydrostatin-SN10 treatment increased the levels of superoxide dismutase (SOD) and reduced glutathione (GSH) and the levels of malondialdehyde (MDA) and alanine aminotransferase (ALT) (p<0.05). These results suggest that hydrostatin-SN10 may inhibit pancreatitis-induced acute lung injury by affecting IL-6-mediated JAK2/STAT3 pathway-associated inflammation and oxidative stress.

scholarly journals ISCHEMIA MODIFIED ALBUMIN LEVELS AND INCREASED OXIDATIVE STRESS IN PATIENTS WITH MULTIPLE MYELOMA / NIVOI ALBUMINA MODIFIKOVANOG ISHEMIJOM I POVI[ENI OKSIDANTNI STRES KOD PACIJENATA SA MULTIPLIM MIJELOMOM

2013 ◽  
Vol 33 (2) ◽  
pp. 175-180 ◽  
Author(s):  
Hamit Yasar Ellidag ◽  
Esin Eren ◽  
Necat Yilmaz ◽  
Asli Bayindir
Keyword(s):  
Oxidative Stress ◽  
Multiple Myeloma ◽  
Serum Levels ◽  
Stress Index ◽  
The Novel ◽  
Ischemia Modified Albumin ◽  
Significant Difference ◽  
Relationship Of ◽  
Oxidant Status ◽  
And Oxidative Stress

Summary Background: Impaired oxidative/antioxidative balance plays an important role in the pathogenesis of many diseases, including cancer. The aim of this study was to evaluate the levels of the novel marker ischemia modified albumin (IMA) and albumin adjusted-IMA (Adj-IMA) in patients with multi- ple myeloma (MM) as well as its association with total antiox- idant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI). Methods: Forty patients with MM (18 females, 22 males; mean age 67.55±8.39 years) and forty age/sex-matched healthy persons (19 females, 21 males; mean age 66.37 ± 6.76 years) were included in this study. Serum levels of IMA, TAS, TOS were analyzed and Adj-IMA and OSI was calcu- lated. Results: Serum IMA, TOS and OSI levels were significantly higher in patients with MM compared to controls (p<0.001 all parameters). There was no significant difference for serum albumin-adjusted IMA and TAS levels between groups (p=0.83 and p=0.17 respectively). Conclusions: In this study, an impaired oxidative/antioxidant status in favor of oxidative stress was found in MM patients. This observation was not confirmed by Adj-IMA calculation. Further studies are needed to establish the relationship of IMA and oxidative stress parameters in multiple myeloma and their relationship to MM and other cancers.

Comparison of genotoxicity and oxidative stress in patients undergoing non-invasive surgery under isoflurane and propofol anaesthesia

2011 ◽  
Vol 28 ◽  
pp. 137
Author(s):  
M. G. Braz ◽  
D. T. Pierine ◽  
C. R. Correa ◽  
A. L.A. Ferreira ◽  
J. R.C. Braz ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Invasive Surgery ◽  
Non Invasive ◽  
And Oxidative Stress

scholarly journals Evaluation of the Effects ofVaccinium arctostaphylosL. Fruit Extract on Serum Lipids and hs-CRP Levels and Oxidative Stress in Adult Patients with Hyperlipidemia: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Rasool Soltani ◽  
Mustafa Hakimi ◽  
Sedigheh Asgary ◽  
Syed Mustafa Ghanadian ◽  
Mahtab Keshvari ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Clinical Trial ◽  
Serum Levels ◽  
Adult Patients ◽  
Controlled Clinical Trial ◽  
Fruit Extract ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Hs Crp ◽  
And Oxidative Stress

Background.Dyslipidemia produces atherosclerosis, which in turn results in coronary artery disease (CAD). Atherosclerosis is being considered as an inflammatory disease.Vaccinium arctostaphylosL. is a plant with fruits rich in anthocyanins. The aim of this study was to evaluate the effects of fruit extract of this plant on serum levels of lipids, hs-CRP, and malondialdehyde (MDA) as a marker of oxidative stress, in hyperlipidemic adult patients.Methods.In this randomized, double-blind, placebo-controlled clinical trial, 50 hyperlipidemic adult patients were randomly and equally assigned to receive either medicinal (V. arctostaphylosfruit extract) or placebo capsules twice daily for 4 weeks. Each medicinal capsule contained 45 ± 2 mg of anthocyanins. Fasting serum levels of total cholesterol, TG, LDL-C, HDL-C, hs-CRP, and MDA were obtained before and after the intervention and compared.Results. V. arctostaphylosfruit extract significantly reduced total cholesterol (P<0.001), LDL-C (P=0.004), TG (P<0.001), and MDA (P=0.013) compared to placebo but did not have any significant effect on HDL-C (P=0.631) and hs-CRP (P=0.190).Conclusion.Fruit extract ofVaccinium arctostaphyloshas beneficial effects on serum lipid profile and oxidative stress in hyperlipidemic adult patients. Therefore, it could be considered as a supplement for treatment of dyslipidemia and prevention of atherosclerosis development.

scholarly journals Keratin-Based Epidermal Green Autofluorescence is a Common Biomarker of Organ Injury

2019 ◽  
Author(s):  
Mingchao Zhang ◽  
Yujia Li ◽  
Jiucun Wang ◽  
Huiru Tang ◽  
Zhong Yang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lung Cancer ◽  
Ischemic Stroke ◽  
Recovery Phase ◽  
The Body ◽  
Organ Injury ◽  
Lung Cancer Patients ◽  
Non Invasive ◽  
And Oxidative Stress ◽  
Invasive Evaluation

AbstractIt is critical to discover biomarkers for non-invasive evaluation of the levels of inflammation and oxidative stress in human body - two key pathological factors in numerous diseases. Our study has indicated keratin 1-based epidermal autofluorescence (AF) as a biomarker of this type: Inducers of both inflammation and oxidative stress dose-dependently increased epidermal green AF with polyhedral structure in mice, with the AF intensity being highly associated with the dosages of the inducers. Lung cancer also induced increased epidermal green AF of mice, which was mediated by inflammation. Significant and asymmetrical increases in green AF intensity with polyhedral structure were found in the Dorsal Index Fingers’ skin of acute ischemic stroke (AIS) patients. While the AF intensity of the subjects with high risk for developing AIS, ischemic stroke patients in recovery phase and lung cancer patients was significantly higher than that of healthy controls, both AF intensity and AF asymmetry of these four groups were markedly lower than those of the AIS patients, which have shown promise for AIS diagnosis. Several lines of evidence have indicated K1 as an origin of the AF, e.g., K1 siRNA administration attenuated the oxidative stress-induced AF increase of mice. Collectively, our study has indicated K1-based epidermal AF as a biomarker for non-invasive evaluation of the levels of inflammation and oxidative stress in the body. These findings have established a basis for novel keratin’s AF-based biomedical imaging technology for non-invasive, efficient and economic diagnosis and screening of such inflammation- and oxidative stress-associated diseases as AIS.

scholarly journals Protective effects of ethanolic extract of Alhagi maurorum roots on renal failure induced by acetaminophen in mice

2021 ◽  
Vol 8 (1) ◽  
pp. 16-22
Author(s):  
Seham I AL-Nafea ◽  
Mohammed O Aljahdali
Keyword(s):  
Oxidative Stress ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Serum Levels ◽  
High Dose ◽  
Root Extract ◽  
Protective Effects ◽  
Oxidative Stress Biomarkers ◽  
Protective Actions ◽  
And Oxidative Stress

The protective actions of ethanol Alhagi maurorum (AM) root ethanol extract on acetaminophen-induced oxidative stress and renal toxicity in mice was evaluated. Forty male SWR strain albino mice aged 8 weeks were grouped into five groups. G1 (n=5): as control. G2 (n=5): administered orally a single dose of acetaminophen (2000mg/kg). G3 (n=10) administrated orally 200 mg/kg of roots ethanol extract for one week then acetaminophen as G2 at 8th day and; G4 (n=10) administrated orally 400 mg/kg of roots ethanol extract for one week then acetaminophen as G2 at 8th day; G5 (n=10) administrated orally 600 mg/kg of roots ethanol extract for one week then acetaminophen as G2 at 8th day. At end of experiments, the mice were killed under anesthesia and blood samples were gathered to preform complete blood test (CBC), serum levels of urea and creatinine and oxidative stress biomarkers as superoxide dismutase (SOD), glutathione (GSH), and catalase (CAT) using available Elisa mice kits. Kidneys were removed and histologically examined. Acetaminophen intake significantly elevated WBCs, neutrophils, monocytes, urea and creatinine levels and significantly decreased RBCs, hemoglobin, hematocrit, GSH, SOD and CAT (P <0.05). Treatment with Alhagi maurorum roots extract especially high dose (600 mg/kg) resulted in decreased in WBCs, neutrophils, monocytes, urea and creatinine levels and significantly increased RBCs, hemoglobin, hematocrit, GSH, SOD and CATversusacetaminophen group. Alhagi maurorum root extract treatment similarly decreased renal histological alteration induced by acetaminophen. This study can be utilized as prove of reading that Alhagi maurorum ethanol root extract especially high dose might be administered to prevent renal destruction induced by acetaminophen due to its antioxidant activity

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