Does ischaemia-modified albumin level predict clomiphene citrate resistant polycystic ovary syndrome patients?

This study aims to examine the role of ischaemic-modified albumin (IMA) in predicting clomiphene citrate (CC) resistance in patients with CC-resistant and CC-sensitive infertile polycystic ovary syndrome (PCOS). Sixty women patients admitted to the infertility clinic were evaluated. The patients were divided into two groups. Group 1 comprised 30 infertile PCOS patients with CC resistance; group 2 was the control group comprising 30 infertile PCOS patients with CC sensitivity. Serum IMA levels of PCOS patients with CC resistance were significantly higher than CC sensitivity patients (p < .001). The independent variables BMI and age effects were adjusted according to the logistic regression method with groups. Significant differences were observed between the two groups in the levels of IMA (p = .0005), HOMA-IR (p = .0045), insulin (p = .022), free testosterone (p = .0001) and total testosterone (p = .03) values. By using ROC curve analysis for IMA between study and control groups, cut off point of IMA was calculated as 0.505 U/mL, sensitivity was 80% and specificity was 63%. The area under the curve was 0.926. This shows us that more oxidative stress (OS) occurs in the CC-resistant group. As a reflection of OS in the follicular endocrine, microenvironment may be linked with impaired oocyte developmental competence and embryo quality in association with increased IMA, free testosterone, total testosterone, insulin and HOMA-IR levels.Impact statementWhat is already known on this subject? In previous studies, IMA was compared between PCOS and control groups. In this study, serum IMA levels were measured in infertile PCOS patients resistant to CC for the first time.What the results of this study add? Serum IMA levels were significantly higher in resistant infertile PCOS patients compared to the control group. This shows us that more OS occurs in the CC-resistant group.What the implications are of these findings for clinical practice and/or further research? IMA will be a guide for PCOS management in patients with CC-resistant PCOS.

The thiol/disulfide balance in ketone positive and ketone negative pregnant women with nausea and vomiting - a prospective study in a tertiary center.

OBJECTIVES: We aimed to investigate the thiol/disulfide balance in ketone positive (hyperemesis gravidarum) and ketone negative pregnant women with nausea and vomiting. MATERIAL AND METHODS: A total of 60 patients under the 14th week of pregnancy were included in this study, and they were divided into two groups. Group 1 included 30 pregnant women with ketone positive, group 2 included 30 ketone negative pregnant women with nausea, and vomiting. RESULTS: The native thiol, disulfide, and total thiol concentrations were measured using an automated method and compared among the two groups. There were also three indexes that are derived from disulfide, native and total thiol (Index 1 = 100 × disulfide/native thiol); (Index 2 = 100 × disulfide/total thiol); (Index 3 = 100 × native thiol/total thiol). When compared with Group 1 and Group 2, total thiol was high, native thiol was low but not statistically significant. Disulphide (p = 0.046), index 1 (p = 0.036) and index 3 (p = 0.034) were statistically significant. CONCLUSIONS: Patients with ketone positive are shifting to OS direction due to lack of nutrients and electrolytes. This study emphasizes the therapeutic potential of antioxidant supplementation, which is becoming an increasingly used approach in treating the symptoms of women with ketone positive.

Maternal serum thiol/disulfide homeostasis in pregnancies complicated by fetal hypoxia.

We aimed to evaluate maternal serum thiol/disulphide homeostasis in pregnancies complicated by fetal distress (FD). A total of 100 patients beyond the 34th week of pregnancy were included in this study, and they were divided into two groups. The study group included 50 patients who had been diagnosed with FD; the control group was composed of 50 patients who had shown no signs of FD and who had undergone an elective (previous) caesarean section (CS). The native thiol, total thiol and native thiol/total thiol (%) concentrations were lower in Group 1 patients than Group 2 patients (p < .001). The disulphide, disulphide/native thiol (%) and disulphide/total thiol (%) concentrations were higher in Group 1 patients than Group 2 patients (p < .001). This study suggests that maternal thiol/disulphide homeostasis is impaired in pregnancies complicated by FD.IMPACT STATEMENTWhat is already known about this subject? Oxidative stress (OS) has previously been investigated in FD. This study reports for the first time a new novel and automatic measurement method.What do the results of this study add? This study shows that the thiol balance shifts in the direction of disulphide in the cases of FD.What are the implications of these findings for clinical practice and further research? Thiol balance can be used for the timely diagnosis of FD.

Evaluation of catalase, myeloperoxidase and ferroxidase values in pregnant women with hyperemesis gravidarum.

OBJECTIVES: To investigate maternal serum catalase, myeloperoxidase and ferroxidase levels in pregnant women withHyperemesis Gravidarum and to compare the results with healthy pregnancies. MATERIAL AND METHODS: In this study, 60 female patients admitted to the Health Sciences University, Gazi Yasargil Trainingand Research Hospital, Gynecology and Obstetrics Department were evaluated. The patients were divided into two groups:Group 1 included 30 pregnant women with hyperemesis gravidarum; Group 2 included 30 healthy pregnant women.Pregnancies over 14 weeks were excluded from the study. RESULTS: The laboratory and laboratory characteristics of both groups are shown in Table 1. No significant differences werefound between the groups in terms of the maternal age, gestational age, gravidity, parity, fasting glucose level, and BMI.The maternal blood CAT levels were significantly higher in the HG group (219.6 ± 111.3 kU/L) when compared to the controlgroup (71.5 ± 52.5 kU/L) (p < 0.001). The maternal blood MPO levels were lower in the control group (121.5 ± 36.3 U/L)than in the study group (90.9 ± 56.4 U/L) (p = 0.016). However, the ferroxidase levels were similar between the twogroups. The independent variables BMI, age, parity, gravidity and gestational week effects were adjusted according to thelogistic regression method with groups. Significant differences were observed between the two groups in the levels ofCAT (0.001), MPO (0.005) values. CONCLUSIONS: This study suggests that antioxidants in response to oxidative stress gave different reactions with differentmechanisms; Also, we believe that insufficient food intake suppresses the immune system and this has an important roleon antioxidants.

The importance of oxidative stress in patients with chronic renal failure whose hypertension is treated with peritoneal dialysis.

Increased oxidative stress is a well-known phenomenon in dialysis patients. However, the contribution of hypertension to the oxidative stress in peritoneal dialysis patients has not yet been assessed. The present study aimed to investigate if hypertension had an additional effect on oxidative stress in peritoneal dialysis patients. A total of 50 patients treated with peritoneal dialysis were divided into two groups: The patients with mean of last three blood pressure results as 135/90 mmHg and above were considered hypertensive, the patients with lower blood pressure were considered normotensive. The control group included 25 healthy individuals. Serum malondialdehyde (MDA), advanced oxidation protein product (AOPP), myeloperoxidase (MPO), catalase (CAT) and glutathione peroxidase (GSH-Px) levels were measured in all groups. MDA level, an indicator of lipid peroxidation, was significantly higher in the hypertensive group compared to the control group, while the increase in the normotensive group was not significant. However, the difference between the hypertensive and normotensive groups was significant. The levels of AOPP, an indicator of protein oxidation level, and MPO, an indicator of neutrophil activation, were not different between the groups, while the activities of antioxidant CAT and GSH-Px decreased in both normotensive and hypertensive groups compared to the control group, and there was no significant difference between the patient groups. This study shows that both normotensive and hypertensive peritoneal dialysis patients have increased-oxidative stress and decreased antioxidant levels and hypertension might have an additional effect on oxidative stress by increasing MDA level in peritoneal dialysis patients.