Photobiomodulation therapy reduces postoperative pain after third molar extractions: A randomized clinical trial.

BACKGROUND: To assess the efficacy of PBMT on reducing postoperative pain scores in patients submitted to third molar extractions. MATERIAL AND METHODS: A randomized controlled trial (ReBEC:RBR-94BCKZ) was designed according to the SPIRIT and followed the CONSORT. Patients were randomly allocated according to control or PBMT groups. PBMT consisted of the application of GaAlAs laser (808nm;50mW) applied in six points (1.23 min;11 J/cm2) after extraction. Pain scores were assessed using the Visual Analogue Scale (VAS) in millimeters evaluated after 6 (T6), 24 (T24), and 48 (T48) hours. The Wilcoxon Mann-Whitney test was used to check for possible associations between VAS scores and treatment groups. RESULTS: A total of 101 third molar extractions were performed in 44 patients. The mean age was 28 years old(SD±11.54). Comparing control and intervention, PBMT group showed a significant effect on the reduction of postoperative pain at T6(mean VAS=0.9; C.I:0.63-1.16) compared to control (mean VAS=2.5;C.I:2.1-2.88)(p<0.001). The same statistically significant effect on the reduction of postoperative pain was observed at T24 (PBMT mean VAS=0.72;C.I:0.51-0.93; control mean VAS=2.86;C.I:2.40-3.31;p<0.001) and T48 (PBMT mean VAS=0.64;C.I:0.36-0.92; control mean VAS=2.86;C.I:2.37-3.34;p<0.001). CONCLUSIONS: PBMT significantly reduce the postoperative pain scores when assessed 6, 24, and 48 hours after third molar extractions.

Circulating free DNA and p53 antibodies in plasma of patients with ovarian epithelial cancers.

BACKGROUND: This study was conducted in order to evaluate the significance of circulating free DNA (CFDNA), blood plasma p53 antibodies (p53-Ab) and mutations of KRAS gene in the prognosis of ovarian epithelial cancers. PATIENTS AND METHODS: A total of 126 patients were included in this study. KRAS mutations and CFDNA were detected by means of the PCR-restriction fragment length polymorphism (PCR-RFLP) and enriched by the PCR-RFLP method. Enzyme-linked immunosorbent assay was used to analyze plasma p53-Ab. RESULTS: KRAS mutations were detected in 27 (21.4%) of examined tumors. The frequency of KRAS mutations was especially high in mucinous cancers (P < 0.001). CFDNA and p53-Ab were frequently detected in patients with serous cancers in high grade (P < 0.001). The overall survival rate was significantly lower for patients with serous tumors and CFDNA and p53-Ab-positive than negative tumors (P = 0.022 and P < 0.001, respectively). In mucinous ovarian cancer, a worse overall survival was correlated with the KRAS mutations (P = 0.03). CONCLUSIONS: The results of the present study suggested that a presence of KRAS mutations in mucinous ovarian cancer and CFDNA and p53-Ab in serous tumors was correlated with the highest risk of cancer progression.

Tumor necrosis factor alpha system and plasma adiponectin concentration in women with gestational diabetes.

Plasma concentrations of adiponectin, tumor necrosis factor-alpha (TNF-alpha) and its soluble receptors sTNFR-1 and sTNFR-2 were measured in 80 patients with gestational diabetes (GDM) (mean age 29.0 +/- 4.9 years) and 30 pregnant women with normal glucose tolerance (NGT) (mean age 28.2 +/- 6.0 years). We found that GDM patients had significantly lower concentrations of adiponectin (11.28 +/- 5.91 vs. 16.31 +/- 6.04 microg/ml, p = 0.00009) and elevated levels of TNF-alpha (1.71 +/- 0.92 vs. 1.27 +/- 0.42 pg/ml, p = 0.0175) in comparison to NGT women. The differences remained statistically significant after adjusting for BMI. Plasma levels of sTNFR-1 and sTNFR-2 also tended to be higher in GDM patients. In the GDM group TNF-alpha concentrations correlated significantly with sTNFR-1 (r = 0.444, p = 0.00008), sTNFR-2 (r = 0.364, p = 0.0016) and with C-peptide concentrations (r = 0.318, p = 0.016), whereas in women with NGT TNF-alpha correlated only with TG levels (r = 0.50, p = 0.024). Multivariate linear regression analysis revealed that prepregnant BMI was the most predictive indicator of TNF-alpha concentrations in GDM women. TG concentrations as well as BMI before pregnancy and at the time of sampling in pregnant NGT women were significant predictors, explaining 62% of the variance in TNF-alpha concentration. There were also negative correlations between adiponectin concentrations and a pregestational BMI (r = - 0.298, p = 0.009), BMI at the time of sampling (r = - 0.239, p = 0.034) and TG concentrations (r = - 0.379, p = 0.039) in GDM patients, whereas women with NGT showed only a negative correlation between adiponectin and TG concentrations (r = - 0.488, p = 0.025). In a multivariate regression analysis, prepregnancy BMI and TG levels remained significant predictors, explaining 39% of the variation in plasma adiponectin concentration in GDM women. In conclusion, our results suggest that decreased adiponectin concentration in GDM may not simply reflect maternal adiposity and insulin resistant state, but may contribute to the impaired glucose metabolism during pregnancy, with potential implications for screening and prevention of the disease.

Post-partum evaluation of amylin in lean patients with gestational diabetes mellitus.

The aim of our study was to compare the secretion of amylin, as well as glucose, insulin and C-peptide at baseline and in response to glucagon stimulation in 26 lean women with gestational diabetes mellitus (GDM) and in 19 age- and BMI-matched pregnant women with normal glucose tolerance (NGT). Intravenous 1-mg glucagon stimulation test was performed 6 weeks after delivery. Fasting and stimulated glucose levels were significantly higher in GDM patients than in subjects with NGT ( p<0.01 at 0 and 6 min; glucose area under the curve (AUC), 604.8+/-41.8 mg/6 min vs. 572.4+/-52.4 mg/6 min, p<0.05). Insulin AUC was also markedly higher in GDM subjects than in healthy controls (373.9+/-144.2 micro IU/6 min vs. 283.7+/-139.1 micro IU/6 min, p<0.05). There was no difference in fasting C-peptide levels between the groups studied, but stimulated concentrations, as well as C-peptide AUC were significantly higher in patients with GDM ( p<0.01 at 1 min and p<0.005 at 6 min; AUC, 27.4+/-11.3 pmol/6 min vs. 18.4+/-6.9 pmol/6 min, p<0.01). Amylin levels were higher in GDM group in comparison to healthy subjects ( p<0.005 at 1 and 6 min; amylin AUC, 113.3+/-51.2 pg/6 min vs. 72.5+/-15.7 pg/6 min; p=0.14), but in contrast to the other hormones, did not rise in response to glucagon injection. In conclusion, our results provide evidence that in patients with GDM in the post-partum period, the levels of amylin, as well as the secretion of insulin and C-peptide remain elevated, when compared to women with NTG. Further investigations are needed to clarify the significance of this elevation as a predictive factor for the development of late maternal type 2 diabetes.

[Evaluation of lipid peroxidation and acid-base status in cord blood of newborns after diabetes in pregnancy]. / Ocena peroksydacji lipidów i równowaga kwasowo-zasadowa u noworodka z ciazy powiklanej cukrzyca.

The purpose of our study was to evaluate lipid peroxidation products and scavenging enzyme activity in placenta and cord blood as well as the estimation of acid-base status and blood gases. Seventy five pregnant patients and their newborns were investigated. Twenty eight had pre-gestational diabetes mellitus (PGDM) and 19 gestational diabetes mellitus (GDM). The following parameters were measured: malondialdehyde (MDA) concentrations, glutathione (GSH) levels, the activity of CuZn dismutase (SOD) (Bioxytech, France). Base excess, pO2, pCO2 and pH were measured in arterial and venous samples. Statistical analysis was performed using Mann-Whitney U test. MDA levels and GSH content increased significantly, while SOD activities declined in diabetic group. Newborns of PDGM mothers had essentially diminished pH and rised both, pCO2 and base deficit. There were no any significant differences in parameters of acid-base balance in newborns of patients with GDM as compared with healthy patients. Our results suggest, that in diabetic patients the fetuses are exposed to increased oxidative stress. The evaluation of antioxidant defence and lipid peroxidation, apart from routine measurement of acid-base balance, might serve as a useful marker of fetal distress in diabetic patients.

Lipid peroxidation, antioxidant defence and acid-base status in cord blood at birth: the influence of diabetes.

Pregnancy complicated by poor control of diabetes is associated with a higher risk of embryopathies, spontaneous abortions and perinatal mortality. A number of authors suggest an involvement of reactive oxygen species (ROS) in diabetic pregnancy. Determining lipid peroxidation products (LP), scavenging enzyme activities and the umbilical cord blood's acid-base balance may contribute to an adequate diagnosis of the neonate at birth. Nevertheless, such measurements seem to have limited value in practical clinical routine. The present study evaluates LP, antioxidant defence and acid-base status related to diabetic pregnancy. Twenty-eight women with type 1 diabetes (PGDM), 19 with gestational diabetes (GDM) and 13 control cases were investigated. An additional control group consisted of 15 healthy patients with negative diabetic history; all women underwent vaginal delivery. Immediately after delivery cord blood samples and placental tissue were collected for malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione (GSH) determination. Additionally, pH, pCO2, pO2 and base excess were measured in both vessels and compared to identify and exclude double venous samples. MDA levels in both cord blood and placental homogenates were significantly higher in both pregestational and gestational diabetic groups, but SOD activity was significantly diminished. Cord blood GSH was markedly elevated in PGDM and GDM. We have also shown significant differences in acid-base parameters in infants of PGDM group. Statistical analysis was performed using the Mann-Whitney U-test. These findings indicate an excessive oxidative stress in pregnancy complicated by diabetes mellitus. Evaluating LP products and scavenging enzyme activities may be valuable, sensitive indexes of fetal/neonatal threat in diabetic pregnancy in humans. Since oxidative stress is an important pathway for fetal injury, we believe that obtaining adequate measurements at the time of birth would contribute to clarifying the fetal/neonatal status in a medical and legal context and might be of value in altering therapy in newborn infants.

Insulin, leptin, IGF-I and insulin-dependent protein concentrations after insulin-sensitizing therapy in obese women with polycystic ovary syndrome.

OBJECTIVE: To determine the clinical, hormonal and biochemical effect of 4-5 months of insulin-sensitizing therapy (hypocaloric diet+metformin) in obese patients with polycystic ovary syndrome (PCOS). DESIGN: Prospective study. METHODS: Twenty-three obese patients with PCOS, 19 obese patients without menstrual disturbances and 11 healthy control women were recruited from the Department of Endocrinology and Endocrine Gynecology, Medical Academy, Bialystok, Poland. Obese patients received 500 mg metformin together with hypocaloric diet three times daily for 4-5 months, after baseline study. The clinical parameters, menstrual pattern and serum concentrations of insulin, leptin, IGF-I, insulin-dependent proteins (sex hormone-binding protein (SHBG), insulin-like growth factor-binding protein-1 (IGFBP-1)), gonadotropins and sex steroids were determined before and after treatment. RESULTS: In the baseline study, obese patients with PCOS had significantly higher insulin, testosterone and LH concentrations in comparison with the other groups. The serum leptin, IGF-I, IGFBP-1 and SHBG were not different between the two groups of obese patients, but there was a significant difference in comparison with the control group. After metformin therapy a significant reduction in BMI, % of body fat and leptin concentration were observed in both groups of obese patients. Fasting insulin, testosterone and LH concentrations decreased significantly only in the PCOS group. Six out of 11 patients in the PCOS group had more regular menstrual cycles; two patients conceived. CONCLUSIONS: Insulin-sensitizing therapy could be considered as an additional therapeutic option in obese women with PCOS.

The effect of exercise training on glucose tolerance and skeletal muscle triacylglycerol content in rats fed with a high-fat diet.

The aim of the present study was to evaluate the effect of exercise training on glucose tolerance and glycogen and triacylglycerol (TG) content in different types of skeletal muscles and in the liver of rats fed with a high-fat diet. From 8 to 11 weeks of age male Wistar rats were fed with isocaloric standard (control) or high-fat diet (HFD--59% calories as fat) and were additionally assigned to a sedentary or trained group (4 weeks of training on a treadmill). An intravenous glucose tolerance test (IVGTT) with the determination of basal and post load insulin was performed before the final tissue sampling. HFD rats developed marked hyperinsulinemia. Exercise training improved glucose tolerance and insulin response in the control group only (AUC for glucose in control sedentary vs control trained, p<0.05; AUC for insulin: control sedentary vs control trained, p<0.005). Liver glycogen was significantly lower in the HFD group (p<0.05 vs control sedentary) and did not increase after exercise training. Muscle and liver TG content was markedly higher in the HFD group in comparison to control (p<0.0001 in all cases). Exercise training increased TG content in the control group in all examined tissues except white gastrocnemius (p<0.001 in all cases compared to sedentary controls), and did not affect tissue TG in the HFD group. After exercise training there was still markedly higher tissue TG content in the HFD group vs control (p<0.0001 in all cases). We conclude that beneficial metabolic effects of training are impaired in high-fat fed rats and that training does not completely reverse metabolic disturbances in this group of animals.

[Diabetic patient and reproduction].

Current views and opinions on pregnancy in diabetic mothers are presented. Special attention is paid to carbohydrate metabolism, pregestational diabetes mellitus (PGDM), gestational diabetes mellitus (GDM) and unclear heterogenous etiology of gestational diabetes mellitus (GDM). Suggestions for identification, diagnosis and treatment of GDM with an emphasis on early screening strategy are given. Obstetrical management and possible perinatal complications are discussed.

[Strategy in gestational diabetes]. / Strategia postepowania w cukrzycy ciezarnych.

This paper reviews current literature on strategic policy in gestational diabetes (GDM). Emphasis is placed on early identification of carbohydrate intolerance. Definitive guidelines related to screening procedures, diagnostic criteria, glucose monitoring with threshold for insulin therapy in GDM were briefly described. Pregnancy termination and delivery management have been discussed. The importance of postpartum follow-up is pointed out. Special attention is paid to the association with increased antenatal risk of subsequent diabetes and consequently raised perinatal morbidity and/or mortality. For appropriate health-care a cooperation between patients, obstetricians and diabetologists is suggested.

[Analysis of selected methods for intrauterine stimulation of fetal pulmonary maturation]. / Analiza wybranych metod wewnatrzmacicznej stymulacji dojrzewania ukladu oddechowego u plodu.

Preterm delivery is still a major cause of infant morbidity and mortality. Premature infants develop numerous complications including respiratory distress syndrome, intraventricular hemorrhage, patent ductus arteriosus, necrotising enterocolitis, etc. Respiratory distress syndrome is the leading problem in perinatology. The incidence of RDS accounts for 70% of all infants delivered before 30 week's gestation and about 20% neonates born between 32-37 week of pregnancy. Our paper presents current opinions and is a critical review of relevant literature on antenatal treatment before anticipated preterm deliveries. Recently performed meta-analysis prove that glucocorticoid therapy is effective in reducing aforementioned pathologies of prematurity. After brief account on effects of several hormones on fetal pulmonary maturity some beneficial interactions for enhanced fetal maturity are pointed out. Glucocorticoid mechanism of action in target cells and its biochemical implications are reviewed. The use of antenatal corticoids for fetal maturation and possible adverse maternal effects follow. Finally both short-term and long-term benefits of ANS are discussed. Thus there are convincing data to support the use of ANS in fetal pulmonary maturation. The current findings suggest that the improvement of respiratory outcome may depend on enhanced expression of phospholipids and proteins of the surfactant system and enzymes of antioxidant systems. We believe that use of antenatal corticosteroids for fetal maturation results in improvement of neonatal outcome and yields substantial savings in health care costs.

Nicotinamide inhibits enhanced in vitro production of interleukin-12 and tumour necrosis factor-alpha in peripheral whole blood of people at high risk of developing type 1 diabetes and people with newly diagnosed type 1 diabetes.

Macrophages and T lymphocytes are the first cells to appear in pancreatic islets in the development of autoimmune diabetes. It has been suggested that cytokines released by monocytes/macrophages, including interleukin-1beta (IL-1beta), interleukin-12 (IL-12) and tumour necrosis factor-alpha (TNF-alpha) could have an initial role in islet B-cell damage. The aim of the present study was to estimate the effect of human insulin and nicotinamide on the levels of monocyte/ macrophage derived cytokines in the peripheral blood of humans at risk of Type 1 diabetes, and in patients with newly diagnosed Type 1 diabetes compared to healthy control subjects. The study was carried out on three groups of subjects: 20 first degree relatives of people with Type 1 diabetes (with two or more antibodies against pancreatic B-cell antigens); 22 patients with recent onset of Type 1 diabetes (duration of the disease 3-6 months); and 25 age- and sex-matched healthy subjects. Cytokine levels (IL-1beta, IL-12, and TNF-alpha) in the supernatants of whole blood cultures incubated with PHA alone (10 microg/ml), or PHA + human insulin (50 microg/ml), or PHA + nicotinamide (100 micromol/l) were quantified by ELISA. In the cultures with nicotinamide the concentration of IL-12 and TNF-alpha was significantly lower in the prediabetic group, diabetic patients, and the healthy controls than in the cultures with PHA only or with PHA + insulin. There were no significant differences in IL-1beta production in the cultures after incubation with the different stimuli in the studied groups and healthy controls. No significant influence of human insulin on macrophage/monocyte cytokines secretion in in vitro cultures of the peripheral blood was found. This suggests that nicotinamide could influence monocyte/macrophage function in peripheral blood by inhibiting production of IL-12 and TNF-alpha.

[Intrauterine stimulation for fetal respiratory system maturation; benefits and risks]. / Wewnatrzmaciczna stymulacja dojrzewania ukladu oddechowego; korzysci a ryzyko.

The use of perinatal steroid therapy, first introduced in 1972 is effective in precocious maturation of human lungs. Antenatal corticosteroid therapy results in reduction of fetal mortality, respiratory distress syndrome, intraventricular hemorrhage in preterm babies. These benefits extend to a broad range of gestational age. They comprise the interval between 24 and 34 weeks of human pregnancy and are not limited by the infant's gender or race. The beneficial effects of corticosteroids are the best pronounced after more than 24 hours from the beginning of the treatment. Noteworthy is that therapy less than 24 hours of duration may also improve outcomes. In the presence of premature rupture of membranes, or better with intact membranes, antenatal corticosteroids reduce frequency of RDS, IVH and finally mortality and morbidity. Review of meta-analyses based on randomized trials supports general option that premature infants whose mothers received corticosteroids before delivery are less likely to develop RDS and its complications. Recent data showed that benefits derived from ANS are additive to those of surfactant therapy, rendering the latter more effective. Followup of children up to 12 years of age indicate that ANS do not impair physical growth or psychomotor development. Short-term adverse effects including maternal infection, maternal pulmonary edema were not clearly demonstrated. Pulmonary edema has not been reported when ANS were used alone (i.e. not in combination with betamimetic tocolytics). No long-term unwanted effects on maternal adrenal function have been observed. There is no serious maternal risk resulting from immunosuppressive effect of corticosteroid therapy on maternal immune system. Although glucocorticoid therapy is likely to provoke insulin resistance, and thereby deterioration in diabetic control, and potentially causes cortisol resistance in the fetal lung, the results of scarce randomized trials are not conclusive. In any rate strict control of maternal diabetes mellitus reduces incidence of RDS. Current available data are not indicative of higher risk of fetal mortality in association with maternal hypertensive disease and ANS. In conclusion, most randomized trials of ANS has provided a positive evidence of efficacy and safety of this highly cost effective therapy in most common clinical situations. However, further trials and more precise estimates are justified on ANS treatment specifically related to blood glucose control and evidence concerning the promotion of fetal lung maturity in babies of women with diabetes mellitus. Although benefits of the corticosteroid therapy are beyond any doubts, more experience is needed to assess the effect of ANS on maternal and/or fetal infection in presence of premature rupture of membranes. And finally, further assessments are required on antenatal corticosteroids with dose regimens in patients with multifetal gestation, more common after wide use of techniques of the assisted human reproduction.

Lipid peroxidation and scavenging enzyme activity in streptozotocin-induced diabetes.

The aim of this study was to evaluate lipid peroxidation and scavenging enzyme activity in streptozotocin-induced diabetes, and then to establish whether moderate doses of nonenzymatic antioxidant vitamin E play a role in the antioxidant defence system in diabetic pregnant rats and their offspring. The study group consisted of 30 normal female Wistar rats, which were given a single dose of streptozotocin (40 mg/kg) and were mated 7 days later. Subsequently, the diabetic animals were divided into two matched groups: the first supplemented with vitamin E (30 mg/100 g chow), and the other fed with a standard diet lacking vitamin E. Controls consisted of 15 pregnant rats. On the first day after delivery, the rats were decapitated and homogenates of maternal liver and uterus as well as neonatal lungs and liver were prepared. Then the following parameters were measured: malondialdehyde (MDA) concentrations in the homogenates and blood serum, glutathione (GSH) levels, the activity of CuZn-superoxide dismutase (SOD) and glutathione peroxidase (GPx), and glycaemia. The neonates of diabetic rats were smaller than the healthy ones and serum glucose concentration was markedly higher in the diabetic animals. MDA levels were significantly increased, whereas GSH, SOD and GPx were markedly diminished in the diabetic adult rats and their offspring in comparison to the control group. In the animals supplemented with alpha-tocopherol, MDA concentrations were significantly lower, GSH content and SOD activities were markedly elevated most tissues studied, whereas GPx remained unchanged. We conclude that, by monitoring the activity of selected scavenging enzymes, information on ongoing biological oxidative stress and thereby on the fetus/neonate status may be obtained. Our results suggest that diabetic pregnant rats and their neonates are exposed to an increased oxidative stress and that vitamin E supplementation may reduce its detrimental effects.

CD11a expression and soluble ICAM-1 levels in peripheral blood in high-risk and overt type 1 diabetes subjects.

A pair of correspondent adhesion molecules: LFA-1 (CD11aCD18) and ICAM-1 (CD54) was shown to be involved in autoimmune insulitis in animal models. Anti-LFA-1 or anti-ICAM-1 monoclonal antibodies administered in vivo had a very strong preventive effect on the development of spontaneous diabetes with a marked reduction of insulitis. On the other hand elevated levels of the soluble form of ICAM-1 (sICAM-1) were documented in subjects at risk for type 1 diabetes. Recently sICAM-1 was shown to play an immunoregulatory role as an inhibitor of islet insulitis. The aim of the present study was to evaluate CD11a + mononuclear cells (lymphocytes and monocytes) and soluble sICAM-1 levels in the peripheral blood of subjects with preclinical and overt type 1 diabetes to assess their role in the development of the autoimmune process and their possible associations with the humoral autoimmune markers. The study was carried out in three groups of subjects: 26 first degree relatives of type 1 diabetes patients (prediabetics) with the combinations of autoantibodies against pancreatic B cells (ICA, GADA, IA-2A, IAA), 22 patients with a recent onset of type 1 diabetes and age and sex-matched 24 healthy volunteers (control group). We observed an increased fluorescence intensity of CD11a on mononuclear cells in overt diabetes subjects and a positive correlation between CD11a fluorescence intensity on monocytes and ICA titre. The highest sICAM-1 levels we obtained in the peripheral blood in the prediabetics in comparison to patients with clinical diabetes and the healthy controls. We found a positive correlation between slCAM-1 and values of ICA, GADA and a total number of antibodies present. In conclusion our study suggests that LFA-1 and sCAM-1 play an important role in the pathogenesis of type 1 diabetes. The assessment of the CD11a bearing monocytes and sICAM-1 levels are potential markers of the preclinical stage of the autoimmune diabetes, but further prospective studies in high risk diabetes type 1 subjects are needed.

[Prevalence of ICA antibodies, anti-GAD and antylA-2 in women with gestational diabetes treated with diet]. / Wystepowanie przeciwcial ICA, antyGAD i antylA-2 u kobiet z cukrzyca ciezarnych leczonych dieta cukrzycowa.

UNLABELLED: Gestational diabetes is considered an important factor complicating foetal development. Furthermore it might potentate the risk of type I maternal diabetes after delivery. Nowadays, on the basis of a detection of antibodies against islet cells (ICA, anti GAD, IA-2 IAA), we can recognize autoimmune disorders typical for the type I diabetes. Therefore, the aim of our study was to estimate the prevalence of islet cells autoantibodies in women with a history of gestational diabetes and to assess, if they might be a risk factor for foetus development and gestation outcome. Our investigations were carried out in 156 patients with the history of gestational diabetes (treated with diet), 6 weeks after delivery. ICA, anti GAD, IA-2, HbA1c and lipid profiles were estimated. Then IVGTT was performed to measure the first phase of insulin secretion. The number of previous abortions per number of pregnancies and birth weight of children were also assessed. In the population studied the most frequently detected antibodies were anti-GAD--7.0% and ICA--5.1%, less frequently--IA-2--3.2%. The prevalence of Abs was higher than in the healthy population but lower than observed among women with family history of type I diabetes. The presence of 2 types of antibodies was found in 3.8% of patients. In the group with the autoimmune disorders, significantly higher birth weights and more frequent failures of previous pregnancies were found. IN CONCLUSION: the foregoing data suggest that the detection of antibodies against the beta cells in women with gestational diabetes might be a serious risk factor and a possible indication for early insulin treatment. As a result the better prognosis of gestation outcome is expected. However, we believe that the further prospective studies are required to verify our statement.

[The evaluation of lipid peroxidation products and antioxidative enzymes activity in cord blood and placental homogenates of pregnant diabetic women]. / Ocena stezenia produktów peroksydacji lipidów oraz aktywnosci wybranych enzymów antyoksydacyjnych we krwi pepowinowej i w lozysku u kobiet ciezarnych z cukrzyca.

The aim of our study was to estimate the concentration of lipid peroxidation products and antioxidant system activity in cord blood and placental homogenates of 13 pregnant women with type I diabetes, 15 patients with gestational diabetes and 16 healthy pregnant women. Malondialdehyde (MDA) concentration, glutathione (GSH) content and the activity of CuZn superoxide dismutase (SOD) (Bioxytech, Oxis International S. A.) were measured. MDA and GSH levels increased significantly, whereas SOD activity was markedly diminished in diabetics, especially in these with type I, in comparison with the control group. Our results support the hypothesis that diabetic pregnant women and their fetuses/neonates are exposed to an increased oxidative stress. Moreover, we suggest that the measurement of oxidative stress level may be useful in clinical practice to assess fetus/neonate state and the risk of possible complications.

[The effect of obesity on ovarian function. I. Serum insulin and insulin dependent protein concentrations in obese patients with polycystic ovary syndrome]. / Wplyw otylosci na funkcje jajnika. I. Insulina i bialka insulinozalezne w surowicy krwi otylych kobiet z zespolem policystycznych jajników.

OBJECTIVES: The aim of the present study was to estimate the role of insulin in the pathogenesis of polycystic ovary syndrome. DESIGN: The study was carried out in 21 obese women with PCO, 18 obese women without menstrual disturbances and 9 normal-weight healthy women. MATERIALS AND METHODS: In all patients antropomethric parameters: weight, height, % of body fat, waist and hip girths were measured and than BMI and WHR were calculated. Oral glucose tolerance test after 75 g glucose was done after overnight fast. Plasma glucose and insulin were measured in 0 min, 60 min and 120 min of the test. The concentrations of IGF-I, IGFBP-1, SHBG, LH, FSH, testosterone, cortisol, PRL, estradiol, were estimated. RESULTS: There was statistical significant difference between plasma insulin concentrations in obese patients with PCO in comparison to obese women with normal menstrual cycle (p < 0.05) and control group (p < 0.001). The concentrations of IGFBP-1 and SHBG were similar in both groups of obese patients and differ markedly in comparison to the control group. There were significant correlation between plasma insulin and % body fat, BMI and waist girth in all studied groups. CONCLUSIONS: We conclude that in obese women with PCO insulin influence ovarian androgen production and decreases the serum SHBG and IGFBP-1 which could contribute in the augmentation of the symptoms of PCO.

[The influence of obesity on ovarian function. II. Plasma leptin concentration in women with polycystic ovary syndrome]. / Wplyw otylosci na funkcje jajnika. II. Leptyna w surowicy krwi pacjentek z zespolem policystycznych jajników.

OBJECTIVES: The aim of the present study was to estimate the leptin role in the pathogenesis of polycystic ovary syndrome. DESIGN: The study was carried out in 21 obese women with PCO, 18 obese women without menstrual disturbances and 9 normal-weight healthy women. MATERIALS AND METHODS: In all patients antropomethric parameters: weight, height, % of body fat, waist and hip girths were measured and than BMI and WHR were calculated. Plasma concentrations of leptin, insulin, LH, FSH, testosterone, cortisol, PRL, estradiol were estimated. RESULTS: There were no statistical significant difference between plasma leptin concentrations in obese patients with PCO in comparison to obese women with normal menstrual cycle. In both groups of obese patients plasma leptin concentrations was significantly higher than in control group (p < 0.001, p < 0.001). There were significant correlation between plasma leptin and % body fat, BMI and waist girth in all studied groups. CONCLUSIONS: We conclude that leptin is not directly involved in observed hormonal disturbances in polycystic ovary syndrome. The main predictor of plasma leptin concentrations in patients with PCO is amount of body fat.