scholarly journals Ischemic modified albumin as a new biomarker in predicting of oxidative stress in alopecia areata

2019 ◽  
Author(s):  
HATİCE ATAŞ ◽  
MÜZEYYEN GÖNÜL ◽  
YASİN ÖZTÜRK ◽  
MUSTAFA KAVUTÇU
Keyword(s):  
Oxidative Stress ◽  
Risk Factors ◽  
Alopecia Areata ◽  
Statistical Significance ◽  
Severe Disease ◽  
Male Gender ◽  
Control Group ◽  
Ischemia Modified Albumin ◽  
Independent Risk Factors

Background and aim: The results show that oxidative stress is a pathophysiologic factor for alopecia areata (AA); however, the markers used can be confounding. Thus, we aimed to investigate the role of oxidative stress in the pathogenesis of AA through an evaluation of ischemia-modified albumin (IMA), other markers of the oxidant/antioxidant system; such as SOD, CAT, GSH-ST and MDA, and contributing clinical risk factors. Materials and Methods: The usefulness of IMA as a new marker for oxidative stress was compared with other markers, and evaluated in patients with AA. Results: The mean serum level of IMA was of higher statistical significance in AA patients than in the control group (IMA: 0.57±0.01 vs. 0.52±0.02 ΔABSU, p<0.0001). IMA (p=0.03, OR=25.8, 95% CI=1.4–482.7) was found to be an independent predictor of oxidative stress in patients with AA. Increased severity of AA was found as an independent risk factor for IMA. Conclusion: Long-lasting disease, male gender, >1 site involvement of disease and increased severity of disease were correlated with increased oxidation. Presence of AA, male gender and severe disease were determined to be independent risk factors for antioxidant and oxidant systems. IMA has great potential as a biomarker of oxidative stress in AA when compared to other studied biomarkers. Keywords: biomarkers, alopecia areata, oxidative stress, antioxidative system, ischemia-modified albumin

scholarly journals Molecular Targets and Oxidative Stress Biomarkers in HPV Infection

2021 ◽  
Vol 80 (2) ◽  
pp. 164-172
Author(s):  
Cristina Iulia Mitran ◽  
Madalina Irina Mitran ◽  
Gabriela Loredana Popa
Keyword(s):  
Oxidative Stress ◽  
Patient Group ◽  
Molecular Mechanisms ◽  
Statistical Significance ◽  
Molecular Targets ◽  
Hpv Infection ◽  
Control Group ◽  
Process Data ◽  
Oxidative Stress Biomarkers

"Recent research has highlighted the role of oxidative stress in the pathogenesis of HPV-related lesions, especially in neoplastic diseases. Oxidative stress and chronic inflammation are the most important cofactors that HPV requires to persist and induce a malignant process. Data on the role of oxidative stress in benign lesions associated with HPV infection, such as genital and non-genital warts, is scarce and further research is needed. We have determined markers of oxidative stress in the serum of 26 patients with palmoplantar warts and 28 healthy subjects. We have investigated representative markers for the four main molecular targets of oxidative stress, nucleic acids – 8-hydroxy-2’-deoxyguanosine (8-OHdG), lipids – 4-hydroxynonenal (4-HNE), carbohydrates – pentosidine, and proteins – thiol-disulfide homeostasis parameters (TDHP): total thiol (TT), native thiol (NT), and disulfides (DS). The serum levels of oxidative stress markers, 4-HNE, 8-OHdG, and pentosidine, were statistically significantly higher in patients with warts in comparison to the control group (p < 0.01). Regarding TDHP, we have found that TT levels were statistically significantly higher in the patient group compared to the control one (p < 0.05). Even though NT and DS levels were reported to be higher in the patient group compared to the control one, no statistical significance was established (p > 0.05). Our results show enhanced oxidative stress damage in patients with palmoplantar warts and provide valuable data in understanding the molecular mechanisms involved in the pathogenesis of HPV infection. To the best of our knowledge, this is the first study to evaluate both 4-HNE and pentosidine in patients with palmoplantar warts. Keywords: oxidative stress, HPV, warts, thiol-disulfide homeostasis."

scholarly journals Evaluation of Oxidative Stress Biomarkers in Patients with Henoch-Schönlein Purpura

Folia Medica ◽  
2021 ◽  
Vol 63 (6) ◽  
pp. 928-931
Author(s):  
Kadir Soylemez ◽  
Fatih Temiz ◽  
Tahir Dalkiran ◽  
Yasar Kandur ◽  
Ergul Belge Kurutas ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Patient Group ◽  
Statistical Significance ◽  
Control Group ◽  
Healthy Children ◽  
Oxidative Stress Biomarkers ◽  
Systemic Involvement ◽  
The Mean

Introduction: Henoch-Sch&ouml;nlein Purpura (HSP) is a systemic vasculitic syndrome characterized by non-thrombocytopenic purpura, arthritis/arthralgia, abdominal pain, and glomerulonephritis. The pathogenesis of HSP has not been clearly identified. Oxidative damage has a role in the pathogenesis of most cases. Aim: This study aimed to evaluate changes of oxidative stress by studying parameters like superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) in an attempt to identify the role of oxidative stress in HSP from another perspective. Materials and methods: This study enrolled 23 pediatric patients (ten girls and thirteen boys) diagnosed with HSP who were under follow-up at Sutcu Imam University School of Medicine Department of Pediatrics between 2014 and 2016 and twenty healthy children as the control group. The parents of all subjects gave informed consent to participate in the study. In the HSP group, the beginning season of the illness and the systemic involvement during follow-up were determined. Blood specimens were obtained at presentation before any treatment was started. SOD, CAT activities, and MDA values in erythrocyte and plasma samples were compared between the patient group and the healthy children. Results: Twenty-three patients with HSP (13 males, 10 females) and 20 healthy children participated in this study. The mean age of the HSP cases was 8.21&plusmn;3.78 years (range 2-16 years) and of the controls was 8.6&plusmn;4.2 (range 3-14 years). The mean MDA value was 2.95&plusmn;0.71 nmol/ml in the patient group and 2.67&plusmn;0.66 nmol/ml in the control group (p=0.787). The mean level of the CAT enzyme was 1.32&plusmn;0.35 U/g Hb in the patient group and 7.8&plusmn;1.74 U/g Hb in the control group (p=0.001). The mean levels of the SOD enzyme were 3.06&plusmn;0.85 U/g Hb in the patient group and 0.97&plusmn;0.36 U/g Hb in the control group (p=0.001). Conclusions: Although high MDA levels support the role of lipid peroxidation in the pathogenesis of HSP, statistical significance was not reached owing to a limited number of our patients. The reduced CAT enzyme activity is consistent with the findings of previous reports. This finding supports the notion that oxidative stress can play a role in the pathogenesis of HSP. Keypoints: Our findings support the notion that oxidative stress can play a role in the pathogenesis of HSP.

Serum and peritoneal fluid levels of ischemia modified albumin in moderate/severe endometriosis

2017 ◽  
Vol 6 (9) ◽  
pp. 3721
Author(s):  
Koray Gok ◽  
Yasemin Tasci ◽  
Berna Dilbaz ◽  
Selda Demirtas ◽  
Sedat Ozdemir ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Peritoneal Fluid ◽  
Colorimetric Method ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Study Group ◽  
Ischemia Modified Albumin ◽  
Median Serum ◽  
And Control

Background: Recently, the role of oxidative stress in progression of endometriosis has been reported. Ischemia-modified albumin (IMA) is a marker of protein oxidation and very limited number of studies has evaluated the role of IMA in endometriosis. This study was designed to evaluate the serum and peritoneal fluid IMA levels in moderate/severe endometriosis as a marker for oxidative stress.Methods: This study was designed as a prospective controlled clinical trial. The study group consisted of 35 cases who underwent laparoscopy and with a diagnosis of moderate/severe endometriosis. The control group (n=35) was cases without endometriosis that underwent laparoscopy for tubal sterilization. The serum and peritoneal fluid IMA levels were measured spectrophotometrically by colorimetric method with complex of albumin non-binding cobalt and dithioerthreitol.Results: Although the median serum IMA levels in study and control groups were similar (p=0.553), the levels of peritoneal fluid IMA were significantly higher in study group (p=0.044). In endometriosis cases with dysmenorrhea peritoneal fluid IMA levels were much higher than cases without dysmenorrhea (p=0.018).Conclusions: The increased levels of IMA in peritoneal fluid of endometriosis support the possible role of oxidative stress in endometriosis. With this study, peritoneal fluid IMA levels are initially documented in endometriosis cases.

scholarly journals Clinical significance of HScore and MS score comparison in the prognostic evaluation of anti-MDA5-positive patients with dermatomyositis and interstitial lung disease

2021 ◽  
Author(s):  
Shengnan Zhao ◽  
Xiaolei Ma ◽  
Xin Zhang ◽  
Ziyi Jin ◽  
Wei Hu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Interstitial Lung Disease ◽  
Lung Disease ◽  
Clinical Significance ◽  
Potential Role ◽  
Disease Onset ◽  
Male Gender ◽  
Older Age ◽  
Independent Risk Factors

ABSTRACT Objectives To evaluate the clinical significance of the HScore and MS score in the prognosis of anti-melanoma differentiation-associated gene 5 (MDA5) positive patients with dermatomyositis (DM) and interstitial lung disease (ILD). Methods The clinical features as well as HScore and MS score were compared between the survivors (n = 61) and nonsurvivors (n = 36) among 97 anti-MDA5-positive DM-ILD patients. Potential prognostic factors were analysed. Results Compared with survivors, nonsurvivors had significantly older age, tended to be male, and had a significantly higher frequency of fever at disease onset, higher levels of aspartate transaminase, lactate dehydrogenase, and serum ferritin, as well as higher values of HScore and MS score but had a significantly lower frequency of arthritis at disease onset. Multivariate analysis revealed that age ≥50 years [hazard ratio (HR) = 2.70, p = .040, 95% confidence interval (CI) 1.05–6.97)], male gender (HR = 3.20, p = .017, 95% CI 1.23–8.28), and higher HScore (HR = 3.72, p = .003, 95% CI 1.56–8.86) were independent risk factors for mortality. Patients with more risk factors had significantly poorer survival (p &lt; .001). Conclusions Older age, high HScore, and male gender are risk factors for poor survival among anti-MDA5-positive DM-ILD patients, suggesting the potential role of macrophage activation in the pathogenesis.

Correlation of Metabolic Risk Factors with Sessile Serrated Lesions

2020 ◽  
Vol 29 (2) ◽  
pp. 175-179
Author(s):  
Melania Macarie ◽  
Simona Bataga ◽  
Simona Mocan ◽  
Monica Pantea ◽  
Razvan Opaschi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Statistical Significance ◽  
Interval Cancer ◽  
Metabolic Risk Factors ◽  
Control Group ◽  
Anatomical Site ◽  
Metabolic Risk ◽  
Right Colon ◽  
Serrated Lesions ◽  
The Right

Background and Aims: The importance of sessile serrated lesions (SSLs) in the pathogenesis of colorectal carcinoma has been recently established. These are supposed to cause the so-called “interval cancer”, having a rapidly progressive growth and being difficult to detect and to obtain an endoscopic complete resection. We aimed to establish the most important metabolic risk factors for sessile serrated lesions. Methods: We performed a retrospective case-control study, on a series of 2918 consecutive patients who underwent colonoscopy in Gastroenterology and Endoscopy Unit, County Clinical Emergency Hospital, Târgu-Mureș, Romania between 1 st of January 2015-31 th of December 2017. In order to evaluate the metabolic risk factors for polyps’ development, enrolled participants were stratified in two groups, a study group, 33 patients with SSLs lesions, and a control group, 138 patients with adenomatous polyps, selected by systematic sampling for age and anatomical site. Independent variables investigated were: gender, smoking, alcohol consumption, obesity, arterial hypertension, diabetes, hypercholesterolemia, hypertriglyceridemia, hyperuricemia, nonalcoholic liver disease. Results: For SSLs the most common encountered localization was the right colon in 30.55% of cases. By comparative bivariate analysis between SSLs group and control group, it was observed that hypertension (p=0.03, OR 2.33, 95 %CI 1.03-5.24), obesity (p=0.03, OR 2.61, 95 %CI 1.08-6.30), hyperuricemia (p=0.04, OR 2.72, 95 %CI 1.28-7.55), high cholesterol (p=0.002, OR 3.42; 95 %CI 1.48-7.87), and high triglycerides level (p=0.0006, OR 5.75; 95 %CI 1.92-17.2) were statistically associated with SSLs development. By multivariate analysis hypertension and hypertriglyceridemia retained statistical significance. Conclusions: Our study showed that the highest prevalence of SSLs was in the right colon and hypertension and increased triglycerides levels were associated with the risk of SSLs development. These risk factors are easy to detect in clinical practice and may help identifying groups with high risk for colorectal cancer, where screening is recommended.

Comparative study of Clinical Characteristics in Patients with Mild and Severe Reflux Esophagitis

2020 ◽  
Vol 66 (1) ◽  
pp. 19-22
Author(s):  
Melania Macarie ◽  
Simona Maria Bataga ◽  
Monica Pantea ◽  
Razvan Opaschi ◽  
Simona Mocan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Sex Ratio ◽  
Hiatal Hernia ◽  
Statistical Significance ◽  
Erosive Esophagitis ◽  
Male Gender ◽  
Consecutive Series ◽  
Study Group ◽  
Entire Study ◽  
Significant Difference

AbstractObjective: This study aims to determine the correlation between risk factors and erosive esophagitis development.Methods: We conducted a retrospective observational study on a consecutive series of 19.672 patients who underwent upper gastrointestinal endoscopy between 01.01.2011-31.12.2017. A total of 3005 patients, diagnosed with erosive esophagitis, were included in the present study and stratified according to Los Angeles classification.Results: During the studied period we found 3005 patients with erosive esophagitis, sex ratio male to female was 1.3/1, the most common forms of esophagitis being grade A and B: 74.54% patients with esophagitis grade A, 14.80% patients with grade B; 5.29% patients were with grade C and 5.35% patients with esophagitis grade D. In severe esophagitis the male predominance was more prevalent (249 males, 71 female), with a sex ratio 3.50/1. The correlation of male gender with severe esophagitis was highly statistically significant (p < 0.0001, OR 2.97; 95% CI 2.25-3.91). Hiatal hernia was diagnosed in 1171 patients, the presence of large hiatal hernias, being an important predictor, with statistical significance (p < 0.0001, OR 3.41; 95% CI 2.22-5.21), for severe esophagitis development. Incidence of Helicobacter pylori infection was 11.51%, in the entire study group, with no statistical significant difference between patients with mild or severe esophagitis (12.02% vs 7.18%).Conclusion: Erosive esophagitis is a frequent disease, the most common forms being grade A and B. Male gender and the presence of hiatal hernia are the most important risk factors for erosive esophagitis development, in our study group.

The Role of Different Aspects of Impulsivity as Independent Risk Factors for Substance Use Disorders in Patients with ADHD: A Review

2015 ◽  
Vol 8 (2) ◽  
pp. 119-133 ◽  
Author(s):  
Slobodin Ortal ◽  
van de Glind Geurt ◽  
Franck Johan ◽  
Berger Itai ◽  
Yachin Nir ◽  
...  
Keyword(s):  
Risk Factors ◽  
Substance Use ◽  
Substance Use Disorders ◽  
Independent Risk Factors

scholarly journals Epidemiology, Risk Factors, and Outcomes of Opportunistic Infections after Kidney Allograft Transplantation in the Era of Modern Immunosuppression: A Monocentric Cohort Study

2019 ◽  
Vol 8 (5) ◽  
pp. 594 ◽  
Author(s):  
Philippe Attias ◽  
Giovanna Melica ◽  
David Boutboul ◽  
Nathalie De Castro ◽  
Vincent Audard ◽  
...  
Keyword(s):  
Risk Factors ◽  
Protective Factor ◽  
Opportunistic Infections ◽  
Control Group ◽  
Kidney Allograft ◽  
Extended Criteria Donor ◽  
Allograft Transplantation ◽  
Kidney Recipients ◽  
Independent Risk Factors ◽  
Kidney Transplantations

Epidemiology of opportunistic infections (OI) after kidney allograft transplantation in the modern era of immunosuppression and the use of OI prevention strategies are poorly described. We retrospectively analyzed a single-center cohort on kidney allograft adult recipients transplanted between January 2008 and December 2013. The control group included all kidney recipients transplanted in the same period, but with no OI. We analyzed 538 kidney transplantations (538 patients). The proportion of OI was 15% (80 and 72 patients). OI occurred 12.8 (6.0–31.2) months after transplantation. Viruses were the leading cause (n = 54, (10%)), followed by fungal (n = 15 (3%)), parasitic (n = 6 (1%)), and bacterial (n = 5 (0.9%)) infections. Independent risk factors for OI were extended criteria donor (2.53 (1.48–4.31), p = 0.0007) and BK viremia (6.38 (3.62–11.23), p < 0.0001). High blood lymphocyte count at the time of transplantation was an independent protective factor (0.60 (0.38–0.94), p = 0.026). OI was an independent risk factor for allograft loss (2.53 (1.29–4.95), p = 0.007) but not for patient survival. Post-kidney transplantation OIs were mostly viral and occurred beyond one year after transplantation. Pre-transplantation lymphopenia and extended criteria donor are independent risk factors for OI, unlike induction therapy, hence the need to adjust immunosuppressive regimens to such transplant candidates.

scholarly journals Effect of Instruction on Preventing Delayed Bleeding after Colorectal Polypectomy and Endoscopic Mucosal Resection

2021 ◽  
Vol 10 (5) ◽  
pp. 928
Author(s):  
Takuya Okugawa ◽  
Tadayuki Oshima ◽  
Keisuke Nakai ◽  
Hirotsugu Eda ◽  
Akio Tamura ◽  
...  
Keyword(s):  
Risk Factors ◽  
Medical Records ◽  
Colorectal Polyp ◽  
Control Group ◽  
Single Center ◽  
Antithrombotic Agents ◽  
Delayed Bleeding ◽  
Factors Associated ◽  
Independent Risk Factors ◽  
Continuous Use

Background: The frequency of delayed bleeding after colorectal polypectomy has been reported as 0.6–2.8%. With the increasing performance of polypectomy under continuous use of antithrombotic agents, care is required regarding delayed post-polypectomy bleeding (DPPB). Better instruction to educate endoscopists is therefore needed. We aimed to evaluate the effect of instruction and factors associated with delayed bleeding after endoscopic colorectal polyp resection. Methods: This single-center, retrospective study was performed to assess instruction in checking complete hemostasis and risk factors for onset of DPPB. The incidence of delayed bleeding, comorbidities, and medications were evaluated from medical records. Characteristics of historical control patients and patients after instruction were compared. Results: A total of 3318 polyps in 1002 patients were evaluated. The control group comprised 1479 polyps in 458 patients and the after-instruction group comprised 1839 polyps in 544 patients. DPPB occurred in 1.1% of polyps in control, and 0.4% in after-instruction. Instruction significantly decreased delayed bleeding, particularly in cases with antithrombotic agents. Hot polypectomy, clip placement, and use of antithrombotic agents were significant independent risk factors for DPPB even after instruction. Conclusion: The rate of delayed bleeding significantly decreased after instruction to check for complete hemostasis. Even after instruction, delayed bleeding can still occur in cases with antithrombotic agents or hot polypectomy.

scholarly journals Clinical Significance of ROMs, OXY, SHp and HMGB-1 in Canine Leishmaniosis

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 754
Author(s):  
Michela Pugliese ◽  
Alessandra Sfacteria ◽  
Gaetano Oliva ◽  
Annastella Falcone ◽  
Manuela Gizzarelli ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lymph Nodes ◽  
Clinical Signs ◽  
Biological Tissues ◽  
Stress Index ◽  
Control Group ◽  
Canine Leishmaniosis ◽  
Oxidative Stress Parameters ◽  
Stress Parameters

This study aimed to investigate the role of oxidative stress parameters (ROMs, OXY, SHp), the Oxidative Stress index (OSi), and High Mobility Group Box-1 protein (HMGB-1) in canine leishmaniosis (CanL). For this study, thirty dogs, naturally infected with Leishmania spp. (Leishmania Group, LEISH) and ten healthy adult dogs (control group, CTR) were included. The diagnosis of CanL was performed by a cytological examination of lymph nodes, real time polymerase chain reaction on biological tissues (lymph nodes and whole blood), and an immunofluorescence antibody test (IFAT) for the detection of anti-Leishmania antibodies associated with clinical signs such as dermatitis, lymphadenopathy, onychogryphosis, weight loss, cachexia, lameness, conjunctivitis, epistaxis, and hepatosplenomegaly. The HMGB-1 and oxidative stress parameters of the LEISH Group were compared with the values recorded in the CTR group (Mann Whitney Test, p < 0.05). Spearman rank correlation was applied to evaluate the correlation between the HMGB-1, oxidative stress biomarkers, hematological and biochemical parameters in the LEISH Group. Results showed statistically significant higher values of SHp in the LEISH Group. Specific correlation between the ROMs and the number of red blood cells, and between HGMB-1 and SHp were recorded. These preliminary data may suggest the potential role of oxidative stress in the pathogenesis of CanL. Further studies are undoubtedly required to evaluate the direct correlation between inflammation parameters with the different stages of CanL. Similarly, further research should investigate the role of ROMs in the onset of anemia.

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