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Objective: To compare the levels of oxidative stress markers in the umbilical cord blood between pregnant women diagnosed with iron deficiency anemia (IDA) and low‐risk controls. Methods: The sample consisted of 131 patients, including 55 pregnant women with IDA and 76 controls with similar demographic characteristics. Participants were selected from patients delivered at ≥37 weeks. We compared the two groups in terms of the native thiol, total thiol, disulfide, and ischemia‐modified albumin (IMA) levels measured in pregnant women's umbilical cord venous blood. Results: The native thiol and total thiol values were statistically significantly lower in the anemia group, and the disulfide and IMA values were statistically significantly higher in the IDA group (P < 0.001). Perinatal outcomes were similar between the groups. Conclusion: In the present study, pregnant women with IDA had lower native and total thiol values and higher disulfide and IMA values in umbilical cord blood. Iron deficiency anemia in pregnancy may be a potential cause of increased oxidative stress. Synopsis: Iron deficiency anemia in pregnancy increases oxidative stress in cord blood. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study was to examine the levels of oxidant and antioxidant markers in patients with obsessive-compulsive disorder (OCD) and to investigate whether these levels change in the presence of major depressive disorder (MDD) comorbidity. Methods: This study was completed with 23 OCD patients with MDD comorbidity (OCD+MDD), 21 OCD patients without MDD comorbidity (OCD- MDD) and 21 healthy controls. Oxidative stress levels of the cases’ were determined by ischemia modified albumin (IMA) and malondialdehyde (MDA) measurements and antioxidant levels were determined by superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) measurements. One- way analysis of variance (ANOVA) and unpaired Student’s t-test were used to compare the study groups. Post hoc Bonferroni test was used for the degree of significance between groups, and repeated measures analysis of covariance (ANCOVA) was used to investigate the effect of age and gender. Results: IMA and MDA levels were significantly higher in the OCD group compared to the control group, and SOD, CAT and GSH-Px levels were lower in the OCD group compared to the control group (p<0.01). IMA levels were significantly higher in the OCD+MDD group compared to the OCD-MDD group, while SOD, CAT and GSH-Px levels were significantly lower in the OCD+MDD group compared to the OCD-MDD group (p<0101). MDA levels were significantly higher in the OCD+MDD group compared to the OCD-MDD group (p=0.009). When the entire OCD patient group was examined, significant, powerful, positive correlations were observed between Y-BOCS and HDRS scores and IMA and MDA, and significant powerful negative correlations between Y-BOCS and HDRS scores and SOD, CAT, and GSH-Px (p<0.001 for all). In OCD+MDD group, oxidative stress markers increased significantly in parallel with the severity of depression, while antioxidant levels decreased (p=0.003 for IMA, p<0.001 for others). Conclusions: We believe that parameters indicating impaired oxidant/antioxidant balance in patients with obsessive-compulsive disorder may help to elucidate the cause of the disease and may be potentially useful biomarkers in the diagnosis and determination of the severity of comorbid MDD. [ABSTRACT FROM AUTHOR]

Introduction: The maternal and fetal outcomes are poorer in pregnancies associated with obstetric complications. A newly recognized marker of hypoxia, serum ischemia-modified albumin (IMA), which serves as an early predictive marker of myocardial infarction in the emergency department, is now being studied in obstetric complications of pregnancy. Aims and Objectives: (1) To study the levels of maternal serum IMA in the early 2nd trimester (12–20 weeks) to predict the occurrence of uncomplicated and complicated pregnancy post 20 weeks of gestation. (2) To evaluate the IMR ratio (IMAR) (serum IMA-to-human serum albumin ratio) and its significance in the obstetric complications of pregnancy. Methodology: This prospective cohort study was conducted on 150 antenatal women with gestational age from 12 to 20 weeks. A complete detailed history of all participants was taken and they were followed up to the time of delivery for the specific complications (i.e., pregnancy-induced hypertension [PIH], preeclampsia, eclampsia, and gestational diabetes in mother and stillbirth, preterm birth, and fetal growth restriction [FGR] in the fetus) that developed during pregnancy. IMA levels and IMA ratio were obtained and correlated with the development of the defined complications of pregnancy. The data were recorded, tabulated, and subjected to statistical analysis. Results: A significant relationship between IMA value and the incidence of PIH, preeclampsia, and eclampsia and between IMAR value and the incidence of preeclampsia and eclampsia was seen among the study population (P < 0.05). We observed that IMA and IMAR values were higher in women who did not have any fetal complications than in women who had fetal complications, namely, stillbirth, preterm birth, and FGR. However, this difference was not significant (P > 0.05). Conclusion: Serum IMA and IMAR levels were higher in women with PIH, preeclampsia, and eclampsia. The most common pregnancy outcome was small for gestation age. No significant link was found between serum IMA levels or IMAR and the severity of eclampsia, gestational diabetes, stillbirth, preterm, and FGR.

Objectives: To evaluate the maternal serum ischemia-modified albumin (IMA) concentration as an oxidative stress biomarker in pregnancies complicated by preterm pre-labor rupture of membranes (PPROM) without maternal clinical infection and compare these results with healthy pregnancies. Material and methods: The present cohort study included 40 pregnancies complicated by PPROM and 49 similar gestational age healthy pregnancies in the third trimester of gestation. Maternal venous blood specimens were obtained at the day of first diagnosis. Maternal serum IMA level was assayed with an Albumin Cobalt Binding test. The subjects were followed up until delivery and perinatal outcomes were recorded. Results: The maternal serum IMA concentrations were significantly higher in the study group (0.56 ± 0.05 absorbance units) as compared to controls (0.54 ± 0.03 absorbance units) (p = 0.020). The maternal serum IMA concentrations were not significantly correlated with the initial maternal white blood cell count (r: 0.118, p = 0.269) and C-reactive protein levels (r: 0.066, p = 0.541). The maternal serum IMA concentrations were negatively correlated with gestational age at delivery (r: --0.248, p = 0.019), birthweight (r: --0.247, p = 0.020) and Apgar scores (r: --0.200, p = 0.049; r: --0.245, p = 0.020). The threshold value of maternal serum IMA concentration above 0.55 absorbance units indicated the pregnancy complicated by PPROM by 57.5% sensitivity and 57.1% specificity (Area under curve 0.613, confidence interval 0.50--0.73). Conclusions: The current study supported for the first time that there is an association between increased maternal serum IMA levels and the development of PPROM in the third trimester of gestation without maternal clinical infection. Elevated maternal serum IMA levels may alert the obstetrician about poor ongoing perinatal outcomes in the early phase of PPROM before increased maternal C-reactive protein and white blood cell count. [ABSTRACT FROM AUTHOR]

Background and Objectives: The purpose of this study is to evaluate the impact of maternal ischemia-modified albumin (IMA) levels on pregnancy-related complications, fetal growth, and development over time. Materials and Methods: The prospective longitudinal and single-center study included 43 pregnant women ages 18 to 43. Routine pregnancy follow-up began at the first antenatal examination for all pregnant women before 14 weeks gestation, with IMA levels measured during the first, second, and third trimesters. The albumin cobalt binding test was used to determine the amount of ischemia-modified albumin (IMA). The patients' medical, sociodemographic, and nutritional data were analyzed. The primary outcome was to investigate how changes in maternal ischemia affected albumin levels during pregnancy and the relationship between these changes and newborn weight. Results: This study included 43 cases with a mean age of 28.5 ± 5.2 years and a mean gestation period of 39.2 ± 1.3 weeks. The mean IMA levels for cases in the first trimester, second trimester, and third trimester were 0.53 ± 0.06, 0.64 ± 0.11, and 0.64 ± 0.06, respectively. The second and third trimesters showed significantly higher levels of ischemia-modified albumin (IMA) than the first trimester (p < 0.01). There was no statistically significant difference in IMA levels between the second and third trimesters (p = 1.000; p > 0.05). There was no statistically significant correlation between fetal birth and percentage changes in IMA measurements between the first and second trimesters, the first and third trimesters, or the second and third trimesters (p > 0.05). Conclusions: Our study determined that maternal ischemia-modified albumin levels during pregnancy did not correlate with fetal birth weight. Our findings revealed that age, sociodemographic changes, BMI, weight gain, and pregnancy complications had no effect on the change in IMA levels during pregnancy. We believe that this result will serve as a benchmark for future studies on IMA levels during pregnancy. [ABSTRACT FROM AUTHOR]

Background: Oxidative stress results from an imbalance between the induction of reactive oxygen species and the ability of cells to metabolize them. Numerous markers can be used to assess the level of oxidative stress. Thiol-disulfide homeostasis (TDH) and ischemia-modified albumin (IMA) are some of them. The aim of this study is to investigate the role of TDH and IMA, which are indicators of oxidative stress, in older patients with osteosarcopenia (OS). Methods: The study was conducted cross-sectionally in a geriatrics outpatient clinic. Patients who applied to the outpatient clinic for three months were included in the study. Patients with acute infection, delirium, malignancy, severe liver, heart or kidney dysfunction and who did not give their consent for the study were excluded from the study. The study was conducted with 136 patients. Sarcopenia was diagnosed according to muscle ultrasonography (USG) and handgrip strength (HGS) results. Osteopenia/osteoporosis was diagnosed according to bone mineral densitometry (BMD) results. The combination of osteopenia/osteoporosis and sarcopenia was accepted as OS. Results: Native thiol, total thiol value and nativethiol /totalthiol*100 values were significantly lower in the group with OS (respectively; value = 265 ± 53.8 standard deviation (SD) μmol/L, p = ≤ 0.001; value = 295.33 ± 55.77 SD μmol/L, p = 0.001; value = 90.06 (2.8) interquartile ranges (IQR), p = 0.033). Disulfide/native thiol*100 and disulfide/total thiol*100 values were significantly higher in the group with OS (respectively; value = 5.5 (1.7) IQR, p = 0.033; value = 4.97 (1.4) IQR, p = 0.034). Conclusion: In our study, the role of oxidative stress in OS was demonstrated by using TDH as an oxidative stress parameter. [ABSTRACT FROM AUTHOR]

Copyright of Pamukkale Medical Journal is the property of Pamukkale Journal of Medicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

ObjectiveThe aim of this study was to examine the levels of oxidant and antioxidant markers in patients with obsessive-compulsive disorder (OCD) and to investigate whether these levels change in the presence of major depressive disorder (MDD) comorbidity.MethodsThis study was completed with 23 OCD patients with MDD comorbidity (OCD+MDD), 21 OCD patients without MDD comorbidity (OCD-MDD) and 21 healthy controls. Oxidative stress levels of the cases’ were determined by ischemia modified albumin (IMA) and malondialdehyde (MDA) measurements and antioxidant levels were determined by superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) measurements. One-way analysis of variance (ANOVA) and unpaired Student’s t-test were used to compare the study groups. Post hoc Bonferroni test was used for the degree of significance between groups, and repeated measures analysis of covariance (ANCOVA) was used to investigate the effect of age and gender.ResultsIMA and MDA levels were significantly higher in the OCD group compared to the control group, and SOD, CAT and GSH-Px levels were lower in the OCD group compared to the control group (p

INTRODUCTION: Sevoflurane and desflurane are commonly used anesthetic agents with known cardiac side effects. Ischemia-modified albumin (IMA) is a useful biomarker that increases in cardiac conditions. This study investigates the effects of desflurane and sevoflurane on cardiac parameters and IMA levels in patients with coronary artery disease (CAD). METHODS: Sixty CAD patients aged over 18 years scheduled for elective surgery were enrolled. Patients were randomly divided into two groups: group I, desflurane (D) (n=30) and group II, sevoflurane (S) (n=30). Pre- and post-operative cardiac parameters were recorded for each patient. IMA measurement in serum was determined spectrophotometrically. RESULTS: Postoperative IMA levels were significantly higher than preoperative IMA levels in both groups (p

Introduction: The identification of novel, easily measurable disease biomarkers might enhance the diagnosis and management of patients with rheumatic diseases (RDs). We conducted a systematic review and meta‐analysis of ischemia‐modified albumin (IMA), a marker of oxidative stress, acidosis, and ischemia, in RD patients and healthy controls. Methods: We searched PubMed, Web of Science, and Scopus from inception to January 15, 2024. The risk of bias and the certainty of evidence were assessed using the Joanna Briggs Institute Critical Appraisal Checklist and GRADE, respectively. Results: In 20 studies investigating a total of 1188 RD patients (mean age 45 years, 64% females) and 981 healthy controls (mean age 44 years, 66% females), RD patients had significantly higher IMA concentrations when compared to controls (standard mean difference, SMD = 0.50, 95% CI: 0.18−0.83, p =.003; I2 = 92.4%, p <.001; low certainty of evidence). In subgroup analysis, the pooled SMD was significantly different in studies investigating ankylosing spondylitis (p <.001), Behçet's disease (p <.001), and rheumatoid arthritis (p =.033), but not familial Mediterranean fever (p =.48). Further associations were observed between the pooled SMD and the broad classification of autoimmune and/or autoinflammatory diseases, the study country, and the method used to measure IMA. Conclusion: Our study suggests that IMA is a promising biomarker of oxidative stress, acidosis, and ischemia, as it can effectively discriminate between patients with different types of RDs and healthy controls. Our results warrant confirmation in longitudinal studies of patients with different types of RDs and different ethnicities (PROSPERO registration number: CRD42024509126). [ABSTRACT FROM AUTHOR]

Objectives: Albumin undergoes structural changes under ischemia and oxidative stress, turning into ischemia-modified albumin (IMA). It has been proposed as an early biomarker for various diseases associated with ischemia. We aimed to investigate the relationship between serum IMA and peripheral artery disease (PAD) and whether it is a risk marker for the severity of PAD. Methods: This prospective case-control study included 100 patients with lower extremity PAD and 50 volunteers without. Patients with resting pain, ulcer, and gangrene were excluded from the study. Patients with PAD included in the study were divided into two groups as mild claudication and moderate-severe claudication. Adjusted-IMA levels were calculated according to the median albumin values of the groups. The basic clinical features and laboratory findings of the participants were recorded and compared. Possible risk factors for presence and severity of PAD and IMA levels were examined by logistic regression and receiver-operating characteristic (ROC) curve analyses. Results: IMA and adjusted-IMA levels were significantly higher in the PAD group (p < 0.001, p < 0.001, respectively). IMA and adjusted-IMA levels were significantly higher in PAD group 2, which had moderate-to-severe claudication and more pronounced ischemic symptoms (p < 0.001, p < 0.001, respectively). Advanced age, presence of hypertension, smoking, low albumin levels, and high adjusted-IMA levels were independent predictors of PAD. There was a negative high correlation between adjusted-IMA levels and ABI (r : −0.666, p < 0.001, Spearman's correlation). ROC curve analysis demonstrated that adjusted-IMA cut-off values of 0.802 or above could predict presence and severity of peripheral artery disease with 70% sensitivity and 78% specificity (AUC: 0.825, 95% CI: 0.758–0.893, log rank p : 0.000). Conclusion: We determinated that increased adjusted-IMA levels were a predictors of the presence and severity of PAD. In addition, adjusted-IMA values can be a valuable marker in the follow-up of clinical severity of PAD. [ABSTRACT FROM AUTHOR]

Aim: We aim to compare the maternal serum thiol and ischemia‐modified albumin (IMA) levels between pregnant women with placenta previa and those with uncomplicated pregnancies and to determine whether changes in these levels were useful in predicting cases of abnormally invasive placenta (AIP). Methods: Fifty‐five pregnant women diagnosed with placenta previa according to the diagnostic criteria (case group) were compared to 100 women with uncomplicated pregnancies of similar demographic characteristics (control group). The patients with placenta previa were further divided into two subgroups: AIP (n = 20) and placenta previa without invasion (n = 35). The maternal serum native thiol, total thiol, disulfide, and IMA levels of the groups were evaluated. Results: The native thiol, total thiol, and IMA values were significantly lower in the case group than in the control group (p < 0.001). The disulfide values were similar between the study and control groups (p = 0.488). When the AIP and placenta previa without invasion groups were compared, the levels of native thiol, total thiol, disulfide, and IMA were similar (p > 0.05). Conclusions: Maternal serum thiol and IMA levels were lower in placenta previa cases compared to the control group. However, these parameters were not useful in predicting AIP cases. [ABSTRACT FROM AUTHOR]

Copyright of Turkish Journal of Trauma & Emergency Surgery / Ulusal Travma ve Acil Cerrahi Dergisi is the property of KARE Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: Sevoflurane and desflurane are commonly used anesthetic agents with known cardiac side effects. Ischemia -modified albumin (IMA) is a useful biomarker that increases in cardiac conditions. This study investiga tes the effects of desflurane and sevoflurane on cardiac parameters and IMA levels in patients with coronary artery disease (CAD). Materials and Methods: Sixty CAD patients aged over 18 years scheduled for elective surgery were enrolled. Patients were rand omly divided into two groups: group I, desflurane (D) (n=30) and group II, sevoflurane (S) (n=30). Pre - and post-operative cardiac parameters were recorded for each patient. IMA measurement in serum was determined spectrophotometrically. Results: Postoperative IMA levels were significantly higher than preoperative IMA levels in both groups. The rate of change between post- and pre-operative IMA levels was significantly lower in group S than in group D. Postoperative heart rate (HR) and mean arterial pressure (MAP) levels were significantly lower than preoperative HR and MAP levels in both groups, whereas no significant differenc es were found between the two groups with regard to pre- and post-operative HR and MAP levels. Conclusions: Sevoflurane is safer and has fewer cardiac side effects in CAD patients than desflurane. However, there is a need for comprehensive new studies evaluating large patient groups investigating this situation. [ABSTRACT FROM AUTHOR]

Aim: There is an ongoing search for novel biomarkers of diabetes. We conducted a systematic review and meta-analysis of the serum concentrations of ischemia-modified albumin (IMA), a candidate biomarker of oxidative stress, acidosis, and ischemia, in patients with pre-diabetes, different types of diabetes mellitus (type 1, T1DM, type 2, T2DM, and gestational, GDM), and healthy controls. Methods: We searched for case-control studies published in PubMed, Web of Science, and Scopus from inception to December 31, 2023. The risk of bias and the certainty of evidence were assessed using the Joanna Briggs Institute Critical Appraisal Checklist and GRADE, respectively. Results: In 29 studies, T2DM patients had significantly higher IMA concentrations when compared to controls (standard mean difference, SMD = 1.83, 95 % CI 1.46 to 2.21, p˂0.001; I2 = 95.7 %, p

INTRODUCTION: Ischemia-modified albumin (IMA) formation is associated with increased reactive oxygen species (ROS) production, while increased cortisol leads to decreased ROS levels. We aimed to evaluate the effect of adrenocorticotropic hormone (ACTH) stimulation on IMA levels and whether the effect was dose-dependent or not. METHODS: A total of 99 subjects with normal ACTH test results were included in the study. Of these, 80 had standard-dose ACTH test while 19 had low-dose ACTH test. Blood samples were collected to determine cortisol and IMA levels; at minutes 0, 30, and 60 following the standard-dose ACTH test and at minutes 0 and 30 following the low-dose ACTH test. RESULTS: IMA levels decreased significantly within 30 minutes and the decrease continued up to the sixtieth minute (p=0.002) after standard-dose ACTH stimulation. After ACTH stimulation, a weak negative correlation was found between peak cortisol and IMA levels at the thirtieth minute (r=0.233, p=0.02). There was no significant difference in IMA levels after low-dose ACTH stimulation, despite an increase in cortisol (p=0.161). DISCUSSION AND CONCLUSION: IMA levels decreased rapidly after standard-dose ACTH stimulation, while a decrease in IMA levels was not observed after low-dose ACTH stimulation. The lack of decrease in IMA levels after low-dose ACTH stimulation suggests a possible dose-dependent relationship between ACTH and IMA. The moderate increase in cortisol with no reduction in IMA levels after low-dose ACTH stimulation and the weak correlation between peak cortisol and 30-minute IMA levels after standard-dose ACTH stimulation suggest that ACTH may have a direct effect on IMA.

This study aims to investigate differences in serum ischemia-modified albumin (IMA) and adjusted IMA levels among cases of healthy intrauterin pregnancies, threatened abortions, and missed abortions. In this prospective case-control study, a total of 90 participants were included, distributed into three groups: missed abortion (n = 30), threatened abortion (n = 30), and intrauterin healthy pregnancy (n = 30). IMA and adjusted IMA values were calculated for each group. Our findings revealed no significant differences in serum IMA and adjusted IMA concentrations among the three groups. Additionally, there were no correlation observed between IMA levels, adjusted IMA levels, and maternal age, body mass index (BMI), white blood cell (WBC) count, neutrophil count, lymphocyte count, platelet count, neutrophil-to-lymphocyte ratio (NLR), platelet-to lymphocyte ratio (PLR), mean corpuscular volume (MCV), and red cell distribution width (RDW). The study concludes that IMA lacks a reliable capacity to differentiate between potential healthy intrauterine pregnancies, threatened abortions, or missed abortions during the first trimester. These results highlight the need for exploring alternative biomarkers that may offer greater specificity in distinguishing various pregnancy outcomes in early gestation. [ABSTRACT FROM AUTHOR]

Objective: Ischemia-modified albumin (IMA) formation is associated with increased reactive oxygen species (ROS) production, while increased cortisol leads to decreased ROS levels. We aimed to evaluate the effect of adrenocorticotropic hormone (ACTH) stimulation on IMA levels and whether the effect was dose-dependent or not. Methods: A total of 99 subjects with normal ACTH test results were included in the study. Of these, 80 had standard-dose ACTH test while 19 had low-dose ACTH test. Blood samples were collected to determine cortisol and IMA levels; at minutes 0, 30, and 60 following the standard-dose ACTH test and at minutes 0 and 30 following the low-dose ACTH test. Results: IMA levels decreased significantly within 30 minutes and the decrease continued up to the sixtieth minute (p=0.002) after standard-dose ACTH stimulation. After ACTH stimulation, a weak negative correlation was found between peak cortisol and IMA levels at the thirtieth minute (r=0.233, p=0.02). There was no significant difference in IMA levels after low-dose ACTH stimulation, despite an increase in cortisol (p=0.161). Conclusion: IMA levels decreased rapidly after standard-dose ACTH stimulation, while a decrease in IMA levels was not observed after low-dose ACTH stimulation. The lack of decrease in IMA levels after low-dose ACTH stimulation suggests a possible dose-dependent relationship between ACTH and IMA. The moderate increase in cortisol with no reduction in IMA levels after low-dose ACTH stimulation and the weak correlation between peak cortisol and 30-minute IMA levels after standard-dose ACTH stimulation suggest that ACTH may have a direct effect on IMA. [ABSTRACT FROM AUTHOR]

Purpose: Ischemia-modified albumin (IMA), total oxidant status (TOS), and total antioxidant status (TAS) are biomarkers used to evaluate oxidative stress status in various diseases including obstructive sleep apnea (OSA). In this study, we investigated the effects of disease severity and comorbidity on IMA, TOS and TAS levels in OSA. Methods: Patients with severe OSA (no-comorbidity, one comorbidity, and multiple comorbidities) and mild–moderate OSA (no-comorbidity, one and multiple comorbidities), and healthy controls were included in the study. Polysomnography was applied to all cases and blood samples were taken from each participant at the same time of day. ELISA was used to measure IMA levels in serum samples and colorimetric commercial kits were used to perform TOS and TAS analyses. In addition, routine biochemical analyses were performed on all serum samples. Results: A total of 74 patients and 14 healthy controls were enrolled. There was no statistically significant difference between the disease groups according to gender, smoking status, age, body mass index (BMI), HDL, T3, T4, TSH, and B12 (p > 0.05). As the severity of OSA and comorbidities increased, IMA, TOS, apnea–hypopnea index (AHI), desaturation index (T90), cholesterol, LDL, triglyceride, AST, and CRP values increased significantly (p < 0.05). On the other hand, TAS, minimum desaturation, and mean desaturation values decreased significantly (p < 0.05). Conclusions: We concluded that IMA, TOS, and TAS levels may indicate OSA–related oxidative stress, but as the severity of OSA increases and with the presence of comorbidity, IMA and TOS levels may increase and TAS levels decrease. These findings suggest that disease severity and presence/absence of comorbidity should be considered in studies on OSA. [ABSTRACT FROM AUTHOR]

This study aimed to explore the potential association between oxidative stress markers and Moyamoya Disease (MMD), a complex cerebrovascular disorder characterized by vascular constriction and collateral vessel formation. The study focused on thiol-disulfide homeostasis and ischemia-modified albumin (IMA) levels as indicators of oxidative stress. A total of 23 MMD patients and 23 control subjects were included in the study. Clinical assessments and comprehensive blood analyses were conducted to evaluate factors including age, gender, disease duration, treatment history, and biochemical parameters. Thiol-disulfide homeostasis parameters were measured using an automated method. Ischemia-modified albumin levels were also analyzed. Statistical analyses, including chi -square tests and ROC curve analysis, were performed to determine differences and potential diagnostic cut -off points. Elevated levels of native thiol, total thiol, and disulfide were observed in the MMD patient group compared to the control group, statistical ly significant. Ischemia-modified albumin levels were notably higher in the patient group, corroborating the association between oxidative stress and ischemic events. ROC curve analysis identified potential diagnostic cut-off points for these markers. The study also highlighted clinical differences, including BMI, CRP levels, and the frequency of various symptoms, between the patien t and control groups. Our study offers insights into the intricate interplay between oxidative stress and Moyamoya Disease. The statistically significant elevated levels of thiol-disulfide markers and ischemia-modified albumin suggest potential links to oxidative stress dynamics within MMD. These findings contribute to our understanding of oxidative stress in cerebrovascular diseases and open avenues for further research. [ABSTRACT FROM AUTHOR]

Abstract Introduction The identification of novel, easily measurable disease biomarkers might enhance the diagnosis and management of patients with rheumatic diseases (RDs). We conducted a systematic review and meta‐analysis of ischemia‐modified albumin (IMA), a marker of oxidative stress, acidosis, and ischemia, in RD patients and healthy controls. Methods We searched PubMed, Web of Science, and Scopus from inception to January 15, 2024. The risk of bias and the certainty of evidence were assessed using the Joanna Briggs Institute Critical Appraisal Checklist and GRADE, respectively. Results In 20 studies investigating a total of 1188 RD patients (mean age 45 years, 64% females) and 981 healthy controls (mean age 44 years, 66% females), RD patients had significantly higher IMA concentrations when compared to controls (standard mean difference, SMD = 0.50, 95% CI: 0.18−0.83, p = .003; I2 = 92.4%, p

Abstract Background Although several cytokines and markers have been recognized to assess disease activity in Behçet’s disease (BD), they are not routinely utilized in daily practice. This study aimed at assessing the usefulness of calprotectin and ischemia-modified albumin (IMA) serum concentrations to measure disease activity in BD. Results The active BD cases had significantly greater IMA serum levels than inactive BD cases (p = 0.013) and controls (p

Background and Objectives: The purpose of this study is to evaluate the impact of maternal ischemia-modified albumin (IMA) levels on pregnancy-related complications, fetal growth, and development over time. Materials and Methods: The prospective longitudinal and single-center study included 43 pregnant women ages 18 to 43. Routine pregnancy follow-up began at the first antenatal examination for all pregnant women before 14 weeks gestation, with IMA levels measured during the first, second, and third trimesters. The albumin cobalt binding test was used to determine the amount of ischemia-modified albumin (IMA). The patients’ medical, sociodemographic, and nutritional data were analyzed. The primary outcome was to investigate how changes in maternal ischemia affected albumin levels during pregnancy and the relationship between these changes and newborn weight. Results: This study included 43 cases with a mean age of 28.5 ± 5.2 years and a mean gestation period of 39.2 ± 1.3 weeks. The mean IMA levels for cases in the first trimester, second trimester, and third trimester were 0.53 ± 0.06, 0.64 ± 0.11, and 0.64 ± 0.06, respectively. The second and third trimesters showed significantly higher levels of ischemia-modified albumin (IMA) than the first trimester (p < 0.01). There was no statistically significant difference in IMA levels between the second and third trimesters (p = 1.000; p > 0.05). There was no statistically significant correlation between fetal birth and percentage changes in IMA measurements between the first and second trimesters, the first and third trimesters, or the second and third trimesters (p > 0.05). Conclusions: Our study determined that maternal ischemia-modified albumin levels during pregnancy did not correlate with fetal birth weight. Our findings revealed that age, sociodemographic changes, BMI, weight gain, and pregnancy complications had no effect on the change in IMA levels during pregnancy. We believe that this result will serve as a benchmark for future studies on IMA levels during pregnancy.

Copyright of Istanbul Gelisim University Journal of Health Sciences / İstanbul Gelişim Üniversitesi Sağlık Bilimleri Dergisi is the property of Istanbul Gelisim Universitesi Saglik Bilimleri Yuksekokulu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: This study aims to explore the value of serum lipoprotein-associated phospholipase A2 (Lp-PLA2), ischemia-modified albumin (IMA), and cystatin C (Cys-C) in predicting the risk of coronary heart disease (CHD). PATIENTS AND METHODS: Clinical data from 104 CHD patients admitted to our hospital from January 2020 to December 2022 were analyzed. Of them, 31 patients had stable angina (Group-S), 36 patients were diagnosed with unstable angina (Group-U), and 37 patients had acute myocardial infarction (Group-A). Additionally, clinical data from 35 healthy individuals undergoing physical examination during the same time period were selected as the control group. Levels of blood lipid indicators and serum Lp-PLA2, IMA, and Cys-C levels were compared between the groups. RESULTS: The rates of diabetes, hypertension, and smoking in Group-S, Group-U, and Group-A were significantly higher than those in the control group (p<0.05). Levels of Lp-PLA2, IMA, and Cys-C in Group-S, Group-U, and Group-A were significantly higher than those in the control group (p<0.05). Levels of Lp-PLA2, IMA, and Cys-C in Group-U and Group-A were significantly higher than those in Group-S, and Group-A had the highest value of these indexes (p<0.05). Multivariate logistic regression analysis showed that Lp-PLA2, Cys-C, and IMA were important risk factors for the onset of CHD (p<0.05). Receiver operating characteristic (ROC) curve analysis showed that the area under the curve (AUC) of Lp-PLA2, IMA, and Cys-C predicting the occurrence of CHD was 0.775, 0.835, and 0.735, respectively. The combined prediction of the three factors has an AUC of 0.920, which is higher than the individual prediction. CONCLUSIONS: L p-PLA2, I MA, a nd C ys-C are closely related to the onset and progression of CHD. These indicators, therefore, can be used in clinical practice to predict and evaluate CHD. [ABSTRACT FROM AUTHOR]

Objective: Epileptic seizures are thought to increase oxidative stress. This study aims to show how thiol-disulfide homeostasis (TDH) and ischemia-modified albumin (IMA) values, which are oxidative stress parameters, affect patients with epileptic seizures. Materials and Methods: This study is a prospective, clinical trial, case-controlled trial. A total of 51 patients who were admitted to the emergency department with epileptic seizures and 51 healthy volunteers were enrolled in this study. Oxidative stress and lactate values were measured from blood samples that were drawn intravenously from the patient group, and these biomarkers were compared with the healthy control group. Results: Statistically significant differences were found between patients in the epilepsy and control groups for all IMA values (P < 0.001) and for all TDH values except disulfide (P < 0.001). Native thiol and total thiol levels were found statistically significantly lower in patients with status epilepticus than in patients with only epileptic seizures (P < 0.001). Conclusion: It has been seen that epileptic attack increases oxidative stress. TDH and IMA levels are affected statistically significantly after epileptic seizure. Especially the decrease in native thiol and total thiol levels is noticeable in patients with status epilepticus.

The lack of specific treatment for COVID-19 and the fact that the clinical course differs between individuals makes it difficult to predict the prognosis. The aim was to investigate the prognostic value of total thiol, D-dimer, procalcitonin (PCT), ischemia-modified albumin (IMA), and complete blood count (CBC) in patients hospitalized with COVID-19.

Aim: While type 2 diabetes (T2DM) is increasing rapidly, developing diabetic complications are the leading cause of morbidity and mortality. Biochemical markers are important for early diagnosis and treatment of nephropathy, which is a common complication. The aim of this study is to evaluate serum ischemia-modified albumin (IMA) levels in the development of diabetic nephropathy in T2DM patients and to determine the effectiveness of this parameter in predicting the presence and severity of nephropathy. Materials and Methods: 68 adult patients diagnosed with T2DM and 30 healthy controls were included in this study. The T2DM group consisted of 34 patients without microalbuminuria (<30 mg/g) and 34 patients with microalbuminuria (30-300 mg/g) according to albumin/creatinine ratio (UACR). Biochemical data and serum IMA levels of the patient and control groups were measured and compared. Results: In terms of IMA levels, the difference between T2DM patients with microalbuminuria (0.55 ± 0.08 ABSU) and without microalbuminuria (0.42 ± 0.05 ABSU) and control (0.37 ± 0.08 ABSU) groups was significant (p<0.0001). The T2DM group with microalbuminuria had the highest glucose, HbA1c, UACR, and IMA levels. There was a positive correlation between IMA levels and UACR (r = 0.541, p < 0.001). IMA had a weak correlation with HbA1c (r = 0.345, p = 0.002). ROC analysis was performed and the IMA test had a high diagnostic value in the diagnostic differentiation of T2DM patients with microalbuminuria. According to multiple logistic regression analysis, IMA levels were an independent risk factor for DN (p = 0.003). Conclusion: Our data showed that IMA values increased significantly in diabetic patients, especially in those with microalbuminuria, and this increase was correlated with UACR levels. This study has shown that increased IMA levels are an important marker for the presence and severity of microalbuminuria in diabetic patients and therefore may be important in the early detection of renal dysfunction in T2DM. We even think that it can be used as an important marker in the follow-up of diabetic patients, even before the development of microalbuminuria. [ABSTRACT FROM AUTHOR]

Objectives: In COVID-19 infection, oxidative stress occurs with the abnormal release of proinflammatory cytokines and the disruption of the balance between oxidants and antioxidants. In our study, we aimed to investigate the relationship between ischemia-modified albumin (IMA), a biomarker of oxidative stress, and the severity of the disease in hospitalized COVID-19 patients. Methods: One hundred and twenty-four hospitalized patients with a diagnosis of COVID-19 were included in the study. These patients were divided into critical and non-critical groups. Serum IMA levels were measured by the colorimetric albumin cobalt-binding method. The IMA-albumin ratio (IMAR) was calculated by dividing IMA values by albumin values. Results: The IMA and IMAR values of the critical COVID-19 group were statistically significantly higher than the non-critical group. In the multivariate analysis, the two variables IMAR and glucose were found to have the most important role in the severity of COVID-19 disease. For IMAR, the area under the ROC curve had a value of 0.725 (95% confidence interval 0.636-0.803). Conclusion: IMA and IMAR levels of the critical group were found to be higher than the non-critical group in COVID patients. We have observed that IMAR levels are associated with the severity of the disease and that IMAR is an independent prognostic risk factor for the disease. [ABSTRACT FROM AUTHOR]

Background: Acute appendicitis is a frequently encountered surgical emergency. Despite several scoring systems, the possibility of delayed diagnosis persists. In addition, a delayed diagnosis leads to an increased risk of complicated appendicitis. Hence, there is a need to identify biological markers to help clinicians rapidly and accurately diagnose and prognosticate acute appendicitis with a high sensitivity and specificity. Although several markers have been evaluated, the pressing concern is still the low specificity of these markers. One such marker is serum ischemia-modified albumin (IMA), which can be a novel biomarker for accurately diagnosing and prognosticating acute appendicitis. Methods: The authors conducted a systematic search of the PubMed, EMBASE, Web of Science, and Scopus databases through February 2023 as per the PRISMA guidelines. The difference in the levels of IMA between patients with acute appendicitis vs. healthy controls, and the difference in the levels of IMA between patients with complicated vs. non-complicated acute appendicitis were taken as the outcome measures. Statistical analysis was performed using a random effects model and mean difference (MD) was calculated. The methodological quality of the studies was assessed by utilizing the Newcastle–Ottawa scale. Results: A total of six prospective comparative studies were included in the meta-analysis. The analysis revealed that the mean level of serum IMA was significantly raised in the acute appendicitis group (MD 0.21, 95% CI 0.05 to 0.37, p = 0.01). Similarly, the mean serum IMA levels were also raised in the complicated appendicitis group compared to the non-complicated appendicitis group (MD 0.05, 95% CI 0.01 to 0.10, p = 0.02). Three of the studies included were, however, of poor methodological quality. Conclusions: Serum IMA is a viable potential marker for diagnosing and prognosticating acute appendicitis. However, due to the limited methodological quality of available studies, further prospectively designed and adequately powered studies are needed. [ABSTRACT FROM AUTHOR]

The content of ischemia-modified albumin (IMA), serum albumin, and antioxidant capacity of blood serum was studied in healthy newborns and in newborns with moderate and severe asphyxia on days 1-2 and 3-4 of the postnatal period. Changes in these indicators were found in both groups of newborns with birth asphyxia in comparison with the group of healthy newborns and were more pronounced in children with severe asphyxia. An increase in the IMA level (by 1.6 times; p<0.001) and antioxidant capacity of blood serum (by 2.4 times; p<0.001) and a decrease in serum albumin content (by 1.5 times; p<0.001) were found in severe asphyxia on days 1-2. Analysis of changes in these indicators by days 3-4 allows to talk about a decrease in the intensity of free-radical reactions in newborns with birth asphyxia during complex therapy. [ABSTRACT FROM AUTHOR]

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Background/Aim: Ankylosing spondylitis (AS) is a chronic inflammatory illness with a poorly known pathogenesis. Current biomarkers that are used to estimate inflammation are normal in some patients despite having active disease. Recent studies have revealed that oxidative stress may have a role in AS and that there is a close relationship between oxidative stress and inflammation. Ischemia-modified albumin (IMA) is a promising new biomarker for oxidative stress. Thus, the aim of this study was to assess IMA levels and their relationship with disease activity and other inflammatory markers in patients with AS. Methods: This prospective case-control study included 48 patients with AS and 25 healthy controls (HCs). The measured serum levels of IMA, interleukin (IL)-17, and IL-23 were compared between patients with AS and the HC group. We also analyzed the correlation between IMA and disease activity, acute phase reactants, and HLA-B27 positivity. The Ankylosing Spondylitis Disease Activity Score with C-Reactive Protein (ASDAS-CRP) and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) were used to determine disease activity. Results: There was no difference in serum IMA levels between the AS and HC groups (25.08 [20.49-46.83] vs. 29.89 [29.89-42.0], P=0.146). Only IL-23 was significantly higher in patients with AS (10.81 [7.25-14.06] vs. 7.95 [6.85-10.46], P=0.039). Furthermore, there was no correlation between IMA and IL-23, IL-17, CRP, ESR, BASDAI, or ASDAS-CRP (r=-0.079, P=0.593; r=-0.043, P=0.771; r=-0.018, P=0.906; r=0.047, P=0.751; r=0.281, P=0.053; r=0.162, P=0.271). There was no significant difference between IMA, IL-17, and IL-23 levels in patients with low disease activity (BASDAI <4, ASDAS-CRP <2.1) and high disease activity (BASDAI =4, ASDAS-CRP =2.1) (BASDAI: P=0.146, P=0.303, P=0.071, and ASDAS-CRP: P=0.451, P=0.410, P=0.324, respectively). There was no difference in IMA levels between HLA-B27-positive patients and HLA-B27-negative patients (P=0.070). Conclusion: Although oxidative stress has been suggested to play a role in AS pathogenesis, we did not find an increase in serum levels of IMA, an oxidative stress biomarker, in patients with AS. Our results suggest that IMA may not be a reliable indicator of inflammation. Further research is needed to determine whether IMA may have a role as a biomarker in AS. [ABSTRACT FROM AUTHOR]

Introduction: Ischemia-modified albumin (IMA) level increases in inflammatory conditions. We aimed to investigate the association between IMA levels and the severity of coronavirus disease 2019 (COVID-19) infection in adult patients. Methodology: We grouped adult patients with COVID-19 infection: Group A - mild symptoms, but normal computed tomography (CT), Group B - mild/moderate illness, and Group C - severe or critical illness. We measured IMA levels at the time of diagnosis of COVID-19 infection. Results: Mean age of the total number of patients (n = 90) was 54.43 (± 8.11) year, and 46.7% (n = 42) were female. IMA levels were highest in Group C and lowest in A (p < 0.001). The most important factor predicting COVID-19 disease severity was IMA. Type 2 diabetes was more frequent in Group C (n = 31) than in Group B (n = 30) (p = 0.042). Asthma was less frequent, and coronary artery disease was more frequent in Group C than in Group A (n = 29) and B (p = 0.009). Duration of hospitalization was highest in Group C (p < 0.001). Conclusions: We analyzed a sample of patients with COVID-19 infection and found that IMA predicted severe COVID-19 disease. Disease severity grouping was based on patients' clinical and radiological features. IMA level measured when SARS-CoV-2 infection is diagnosed may be a useful marker in predicting likely disease severity or intensive care need. [ABSTRACT FROM AUTHOR]

Background: Coronavirus disease 2019 (COVID-19) is a systemic disease which causes an increased inclination to thrombosis by leading to coagulation system activation and endothelial dysfunction. Our objective in this study is to determine whether ischemia-modified albumin (IMA) can be used as a new marker in patients with COVID-19 for evaluating the increased coagulation risk, pneumonic infiltration, and thus, prognosis. Methods: Our study included 59 patients with COVID-19 compatible pneumonic infiltration on lung computed tomography (CT) who applied to and were hospitalized in the Internal Diseases Outpatient Clinic, then followed up and treated, as well as 29 healthy individuals with a negative COVID-19 rRT-PCR test without any additional disease. Hemogram, coagulation, routine biochemistry, and serum IMA activity parameters were studied. Results: In our study, the higher serum IMA level in COVID-19 patients with pneumonic infiltration compared to that of the healthy control group was found to be statistically significant. No significant correlation was found between the serum IMA levels and the coagulation and inflammation parameters in the 59 COVID-19 patients included. Conclusions: Serum IMA levels in COVID-19 patients with pneumonic infiltration on CT were found to be higher than in the control group. Examination of biochemical parameters, especially thrombotic parameters that affect prognosis such as IMA, can be a guide in estimating pneumonic infiltration. [ABSTRACT FROM AUTHOR]

Aim. To study the perioperative dynamics of myocardial injury biomarkers high-sensitivity cardiac troponin I (hs-cTnI), ischemia-modified albumin (IMA) and soluble ST2 (sST2) when taking nicorandil in lung cancer patients with concomitant coronary heart disease (CHD) undergoing surgical lung resection.Material and methods. The study included 54 patients (11 women and 43 men) with non-small cell lung cancer and concomitant stable CHD who underwent lung resection in the volume of lobectomy or pneumonectomy. Patients were randomly assigned to the nicorandil group (oral administration 10 mg BID for 7 days before and 3 days after surgery; n=27) and the control group (n=27). In the study groups, the perioperative dynamics of hscTnI, IMA and sST2, determined in the blood before and 24 and 48h after surgery, were compared. We calculated the incidence of acute myocardial injury in the groups, which was diagnosed in cases of postoperative hs-cTnI increase of more than one 99th percentile of the upper reference limit. The associations of nicorandil intake and acute myocardial injury were evaluated.Results. The groups were comparable in gender, age, basic clinical characteristics, as well as baseline levels of myocardial injury biomarkers. After the intervention, both samples showed an increase in the hs-cTnI and sST2 levels and a decrease in IMA concentration (all p

Scientific knowledge should be based on evidence. However, some scientific studies can be carried out without sufficient evidence. And these studies may mislead subsequent studies. Ischemia-modified albumin (IMA) is a relatively newly proposed biomarker. It is used not only for myocardial ischemia but also used for other pathological conditions in the body. IMA is commonly measured by albumin cobalt binding (ACB) assay. ACB is a simple colorimetric assay performed in patients’ sera. It is claimed that because of the ischemia or ischemia-reperfusion, the molecular structure of the N-terminus of human serum albumin is changed and therefore it cannot bind metal ions and cobalt ions added into the reaction mixture react with dithiothreitol to give a brown color. The clinical performance of the ACB assay is poor and it has not a strong correlation with other ischemia biomarkers. There are many analytical uncertainties in ACB assay and IMA as well. Despite the uncertainties, the ACB assay is still commonly used for many research studies. Therefore the theory of the ACB assay should be questioned. In this opinion paper, we discussed these uncertainties. In conclusion, there is insufficient evidence for the existence of IMA as a biomarker. The ACB assay essentially measures serum albumin concentration. There are many other interfering factors with the ACB assay. Therefore, the measurement of IMA in any pathological condition is a useless effort.

Objective: This study investigates the relationship between Ischemia Modified Albumin and Total-Sulphydryl levels with some subclinical inflammatory markers in patients with hyperemesis gravidarum. Materials and methods: A total of 258 pregnant women, 137 with hyperemesis gravidarum and 121 low-risk pregnancies, were included in this case–control study. The patients were divided into three groups according to the severity of hyperemesis gravidarum as mild (n = 53), moderate (n = 41) and severe (n = 43). Results: Serum Ischemia Modified Albumin levels were statistically different from the control group (P

Emma Rusmayani,1 Widya Artini,1 Muhammad Bayu Sasongko,2 Suhardjo,2 Viona Viona1 1Glaucoma Department, Jakarta Eye Center Hospitals and Clinics, Jakarta, Indonesia; 2Ophthalmology Department, Faculty of Medicine University Gadjah Mada, Yogyakarta, IndonesiaCorrespondence: Emma Rusmayani, Glaucoma Department, Jakarta Eye Center Hospitals and Clinics, Terusan Arjuna Utara / 1 Kedoya, West Jakarta, Jakarta, Indonesia, 11520, Email emma.rusmayani@jec.co.idPurpose: To analyze ischemia-modified albumin (IMA) levels in aqueous humor and serum, and their correlation to RNFL thinning in primary glaucoma patients.Design: Cross-sectional study.Methods: Patients were divided into the control and glaucoma groups. The control group was patients with senile cataracts. The glaucoma group consisted of patients diagnosed for the first time as primary open-angle glaucoma (POAG) or primary angle closure glaucoma (PACG). Exclusion criteria were secondary glaucoma and patients with systemic disease. A complete cataract examination was done for all patients, and glaucoma examinations for the glaucoma group. In both groups, the IMA aqueous humor was obtained during cataract and glaucoma procedure. Serum levels of IMA, malondialdehyde (MDA), and tumor necrosis factor alpha (TNF-α) were examined during preoperative examinations.Results: Control group comprised 33 participants, and glaucoma group 41 patients (21 PACG and 20 POAG). Mean IMA aqueous humor (AQH) levels found in cataract group 6.039± 3.16 ng/mL, glaucoma group 14.89± 6.08 ng/mL, PACG group 12.69± 6.25 ng/mL and POAG group 17.33± 4.988 mg/mL. Mean IMA serum levels in cataract group 14.75± 6.53 ng/mL, glaucoma group 13.89± 6.53 ng/mL, PACG group 12.79± 6.46 ng/mL± and POAG group 14.93± 10.74 ng/mL. Glaucoma group had significant higher level of IMA in aqueous humor compared to control group, but opposite findings in serum IMA levels between groups. POAG patients had a higher aqueous IMA level compared to PACG group and correlated significantly with IOP. IMA AQH also negatively correlated to the RNFL thickness in both POAG and PACG group. Cut off 9.5 ng/mL was considered as a normal limit value to differentiate between control and glaucoma group.Conclusion: Primary glaucoma patients showed a significantly increased level of IMA AQH as a local ischemic biomarker compared to the control group. Systemic oxidative activity is not a representation of local ocular oxidative stress in both cataract and glaucoma group.Keywords: ischemia-modified albumin, biomarker, primary glaucoma, early detection

Abstract Background Acute myocardial infarction (AMI) is a leading cause of death worldwide. The first hours of acute myocardial infarction are correlated with the highest risk of death. Therefore, early diagnosis of the infarction seriously affects the efficacy of the treatment administered to the patient. Misdiagnosing patients with chest pain often leads to inappropriate admission of them as acute myocardial infarction patients. The physical examination of the patient, the electrocardiogram, and the assessment of cardiac biomarkers all play an important role in the early diagnosis of acute ischemia, along with the patient's medical history. Main body The present review highlights a number of different biomarkers that are released and elevated in blood during an acute myocardial infarction. Conclusions Analysis of cardiac biomarkers has become the first-line diagnostic tool used in the diagnosis of acute myocardial infarction. Novel markers of acute myocardial infarction, when added to routinely used markers, can provide added value not only in the earlier detection of acute myocardial infarction but also in monitoring the clinical progress of the disease, predicting its consequences, evaluating its prognosis, detecting recurrence, and managing its treatment. This leads to a lower mortality rate associated with acute myocardial infarction. cMyC, IMA, S100, and MicroRNAs can serve as markers of early diagnosis of acute myocardial infarction, whereas myeloperoxidase, sCD40L, PAPPA, and TNF-α can be used to monitor the clinical progress of the disease. In addition, H-FABP, GDF-15, F2 isoprostanes, and ST2 can serve as predictors of AMI complications and mortality. Copeptin, ST2, and SIRT can be useful as prognostic markers of acute myocardial infarction.

Abstract Background Pulmonary embolism (PE) is a common and potentially life-threatening disorder. Our study was aimed to investigate whether oxidative stress markers can be used as clinical markers in the evaluation of acute PE (APE) severity. Methods 47 patients with objectively documented diagnosis of APE were recorded. Of these patients, 14 had low-risk PE, 16 had moderate-risk PE, and 17 had high-risk PE. 21 healthy subjects were also enrolled in this study. Ischemia-modified albumin (IMA), prooxidants-antioxidants balance (PAB), advanced protein oxidation products (AOPPs), and ferric reducing antioxidant power (FRAP) were measured as oxidative stress parameters to evaluate the role of oxidative stress. Results In the low-risk and moderate-risk APE groups, AOPPs and PAB levels were significantly higher and FRAP levels were significantly lower than those in the control group. AOPPs and IMA levels in the patients with high-risk PE were significantly higher than those in both the low-risk and moderate-risk APE patients. There was a significant correlation between levels of AOPPs and the levels of both IMA (r: 0.462, p

Background: Prediabetes, diabetes, and their associated complications adversely affect women’s health worldwide. Women in the reproductive age group are more prone for developing diabetes and its associated complications such as gestational diabetes and infertility. Hence, it is the need of the hour to diagnose women at risk of pre-diabetes. Oxidative stress, ischemia, and hypoxia have been suggested as important factors in developing prediabetes and its sequels. Aims and Objectives: The present study aimed to study the association of serum ischemia-modified albumin (IMA), namely, a marker of oxidative stress, ischemia, and hypoxia with prediabetes in the women of reproductive age group. Materials and Methods: The present study was carried out in 50 females in the reproductive age group of 19–45 years. The study population was further sub-divided into two groups: Group I consisted of 25 prediabetic patients and Group II consisted of 25 healthy controls. Serum samples of the subjects were analyzed for serum IMA, blood sugar profile, and other routine biochemistry tests. Results: The present study showed that mean serum IMA was raised in prediabetic group as compared to healthy controls. The serum IMA also positively correlated with blood sugar profile. Conclusion: Increased serum IMA could be used as a biomarker for predicting prediabetes in females of reproductive age group. This, in turn, would be helpful in preventing the burden of various complications known to occur in the natural course of prediabetes and diabetes.

Purpose: The present study examined the effectiveness of the preoperative ischemia-modified albumin (IMA) levels in predicting the healing period of amputation wounds in patients with diabetes mellitus following a non-traumatic below-knee amputation (BKA). Materials and Methods: This study enrolled 41 diabetic foot ulcer patients who underwent BKA at the authors' hospital diabetic foot center from April 2016 to April 2022. Among the 41 patients, 29 (70.7%) were male and 12 (29.3%) were female. Their mean age was 64.54±11.38 years (41~81 years). The mean follow-up period was 19.48±5.56 weeks (14~48 weeks) after BKA. The patients were divided into two groups (high IMA group and normal IMA group), which evaluated the healing period, wound dehiscence, and revision operation rate using a Fisher's exact test and Mann--Whitney U test. Three orthopedic surgeons performed stump wound evaluation, and they were evaluated as healing when all sutures were fused without oozing. Results: Thirty patients (73.2%) (group A) showed a high level of IMA (median: 91.2 U/mL), and 11 (26.8%) patients (group B) showed a normal range of IMA (median: 82.7 U/mL). In group A, the median period for wound healing took 1.4 weeks longer, which was significant (p=0.001). No statistical relationship was observed between wound dehiscence, revision operation rate, and IMA value. There was no correlation between the other risk factors (estimated glomerular filtration rate, HbA1c) and the wound healing period. Conclusion: Although there was a limitation in using IMA as the sole factor to predict the healing period of amputation wounds in patients after BKA, this study revealed a significant positive correlation between IMA and the period of stump healing after BKA. Therefore, the preoperative IMA levels may help predict the period of stump healing after BKA. [ABSTRACT FROM AUTHOR]

Purpose: Oxidative stress (OS) plays a critical role in the onset and progression of macro and microvascular complications of diabetes mellitus (DM). Ischemia-modified albumin (IMA) is a novel and simple test for evaluating OS. In the present study, we reviewed the available information on the alteration of circulating IMA in DM and its possible prognostic and diagnostic value in DM-related complications. Methods: Relevant studies regarding IMA alteration in DM published until May 30, 2022 were extracted from Google Scholar, PubMed, Scopus, and Science Direct databases. The following key words were used: IMA, DM, diabetes complications, retinopathy, nephropathy, diabetic foot, and vascular complications. Results: This review revealed increased circulating IMA levels in the patients with type 1, type 2, and gestational DM. Furthermore, IMA showed a close relationship with the severity of DM complications including hyperglycemia, dyslipidemia, diabetic retinopathy, diabetic nephropathy, peripheral arterial disease, and diabetic foot ulcer. However, lack of assay standardization and low specificity are major obstacles to the use of IMA as a promising biomarker. Conclusion: IMA levels are associated with DM complications and can be applied as a practical test for evaluating the risk and predicting the severity of DM complications. [ABSTRACT FROM AUTHOR]

Objective: Epileptic seizures are thought to increase oxidative stress. This study aims to show how thiol-disulfide homeostasis (TDH) and ischemia-modified albumin (IMA) values, which are oxidative stress parameters, affect patients with epileptic seizures. Materials and Methods: This study is a prospective, clinical trial, case-controlled trial. A total of 51 patients who were admitted to the emergency department with epileptic seizures and 51 healthy volunteers were enrolled in this study. Oxidative stress and lactate values were measured from blood samples that were drawn intravenously from the patient group, and these biomarkers were compared with the healthy control group. Results: Statistically significant differences were found between patients in the epilepsy and control groups for all IMA values ( P < 0.001) and for all TDH values except disulfide (P < 0.001). Native thiol and total thiol levels were found statistically significantly lower in patients with status epilepticus than in patients with only epileptic seizures (P < 0.001). Conclusion: It has been seen that epileptic attack increases oxidative stress. TDH and IMA levels are affected statistically significantly after epileptic seizure. Especially the decrease in native thiol and total thiol levels is noticeable in patients with status epilepticus. [ABSTRACT FROM AUTHOR]

Obstructive sleep apnea (OSA) has been identified as a cardiovascular (CV) risk factor. The potential of OSA promoting the synthesis of CV biomarkers in acute coronary syndrome (ACS) is unknown. Ischemia-modified albumin (IMA) has been identified as a specific CV biomarker. The aim of this study was to evaluate the role of IMA as a potential biomarker for determining the impact of OSA in ACS patients. A total of 925 patients (15.5% women, age: 59 years, body mass index: 28.8 kg/m2) from the ISAACC study (NCT01335087) were included. During hospitalization for ACS, a sleep study for OSA diagnosis was performed and blood samples extraction for IMA determination were obtained. IMA values were significantly higher in severe OSA (median (IQR), 33.7 (17.2–60.3) U/L) and moderate (32.8 (16.9–58.8) U/L) than in mild/no OSA (27.7 (11.8–48.6) U/L) (p = 0.002). IMA levels were very weakly related to apnea–hypopnea index (AHI) as well as hospital and intensive care unit stay, although they only maintained a significant relationship with days of hospital stay after adjusting for sex, age and BMI (ß = 0.410, p = 0.013). The results of the present study would suggest a potentially weaker role of OSA in the synthesis of the CV risk biomarker IMA in patients with ACS than in primary prevention. [ABSTRACT FROM AUTHOR]

Background. There is no specific biomarker used in the diagnosis of COVID-19 and predicting its clinical severity. This study aimed to investigate the utility of ischemia-modified albumin (IMA) in diagnosing and predicting clinical severity in children with COVID-19. Methods. Between October 2020 and March 2021, 41 cases constituted the COVID-19 group and 41 cases constituted the healthy control group. IMA levels were measured at admission (IMA-1) and 48-72 hours (IMA- 2) in the COVID-19 group. In the control group, it was measured at admission. COVID-19 clinical severity was classified as asymptomatic infection, mild, moderate, severe, or critical disease. Patients were divided into two groups (asymptomatic/mild and moderate/severe) to evaluate IMA levels in terms of clinical severity. Results. In the COVID-19 group, the mean IMA-1 level was 0.901±0.099, and the mean IMA-2 level was 0.866±0.090. The mean level of IMA-1 in the control group was 0.787±0.051. When IMA-1 levels of COVID-19 and control cases were compared, the difference was statistically significant (p<0.001). When clinical severity and laboratory data are compared, C-reactive protein, ferritin and ischemia-modified albumin ratio (IMAR) were statistically significantly higher in moderate-severe clinical cases (p=0.034, p=0.034, p=0.037 respectively). However, IMA-1 and IMA-2 levels were similar between the groups (p=0.134, p=0.922, respectively). Conclusions. To date, no study has been conducted on IMA levels in children with COVID-19. The IMA level may be a new marker for the diagnosis of COVID-19 in children. Studies with a larger number of cases are needed to predict clinical severity. [ABSTRACT FROM AUTHOR]

Objective β-thalassemia major (β-TM) is a hemoglobinopathy characterized by reduced or absent β-globin production. A balance remains between the production of free radicals and suppression of increased levels of reactive oxygen species by the antioxidant system. This study aimed to examine thiol/disulfide homeostasis (TDH) and serum ischemia-modified albumin (IMA) levels to evaluate the oxidant/antioxidant balance in healthy children and persons with β-TM receiving and not receiving chelation therapy. Methods This prospective study was carried out from January to June 2021 among 46 individuals with β-TM and 35 healthy controls. A spectrophotometric method was used to analyze TDH and IMA concentrations. Results We found that, compared to controls, native thiol (NT) (P =.048) and total thiol (TT) (P =.027) values were lower in the patient group, whereas disulfide (P <.001), disulfide/native thiol (D/NT) (P =.004), disulfide/total thiol (D/TT) (P =.005), native thiol/total thiol (NT/TT) (P =.004) and IMA (P =.045) values were higher. NT and TT levels were significantly lower in the chelation− group compared to the chelation+ and control groups (P =.002, P =.001). D/NT, D/TT, and NT/TT levels were higher in the chelation+ group than the control group (P =.007), and IMA levels were significantly higher in the chelation+ and chelation− groups compared to the control group (P =.002). The receiver operating characteristic analysis demonstrated that IMA levels were significantly higher in the children with β-TM not taking regular chelation therapy. Conclusion Thiol/disulfide homeostasis was observed to be weakened in children with β-TM in our study. Our findings show that when children with β-TM do not receive regular chelation therapy, their oxidant imbalance worsens. [ABSTRACT FROM AUTHOR]