Can the First Fasting Plasma Glucose Test in Pregnancy Predict Subsequent Gestational Complications?

Objective: To determine the best cut-off level of pregnant women's first fasting plasma glucose (FFPG) test results for the prediction of subsequent onset of gestational diabetes mellitus (GDM) and to examine the association between FFPG and maternal and neonatal outcomes in a large Caucasian population. Methods: 1437 medical records of women with singleton pregnancies followed up between 2015 and 2018 were retrospectively analyzed. Data on FFPG tested in the first trimester and 75 g oral glucose tolerance test (OGTT) findings performed according to IADPSG criteria and Italian guidelines were collected and evaluated. The women's clinical and metabolic characteristics (age, prepregnancy body mass index (BMI), previous pregnancies complicated by GDM, timing of delivery, and gestational hypertension) were also recorded. The fetal variables considered were being large for gestational age (LGA) or small for gestational age (SGA), macrosomia, and hypoglycemia. Results: Among the 1437 pregnant women studied, 684 had a normal glucose tolerance (NGT) and 753 developed GDM. In a univariate analysis FFPG ≥92 mg/dl predicts the risk of GDM with an OR = 2.36 (95% CI 1.930-3.186; p < 0.001). In multivariate analysis, after adjusting for principal risk factors of GDM (BMI, previous GDM, age >35 years, family history of diabetes) FFPG ≥92 mg/dl was associated with the risk of GDM (OR = 1.92; 95% CI 1.488-2.492; p < 0.001). In univariate analysis, FFPG ≥92 mg/dl predict the risk of insulin therapy in GDM women with a OR = 1.88 (95% CI 1.230-2.066; p < 0.001). As regards LGA, in a multivariate analysis, after adjusting for BMI, FFPG ≥92 mg/dl was associated with the risk of LGA only in NGT women (OR = 2.34; 95% CI 1.173-4.574; p=0.014), but not in GDM women. FFPG was not associated with other maternal or neonatal outcomes. Conclusions: FFPG ≥92 mg/dl is related to GDM diagnosis and to the need of insulin therapy if GDM is diagnosed. An early diagnosis and a prompt start of insulin therapy are essential to prevent maternal and fetal complications.

Preeclampsia in pregnancies complicated by systemic lupus erythematosus (SLE) nephritis: prophylactic treatment with multidisciplinary approach are important keys to prevent adverse obstetric outcomes.

INTRODUCTION: Systemic lupus erythematosus (SLE) commonly affects women of childbearing age. Hypertension, antiphospholipid syndrome, and lupus nephritis are risk factors for adverse maternal/fetal outcome. The aim of this retrospective cohort study is to compare pregnancy outcomes in patients with and without SLE nephritis, using a multidisciplinary approach and a broad prophylaxis protocol. MATERIALS AND METHODS: Data were collected from 86 pregnancies complicated by SLE. Twenty-seven women with nephropathy before pregnancy stated as the study group and 59 formed the control group. Each group received a prophylactic treatment based on their clinical characteristics. Results were expressed as mean ± SD, percentage and χ2-test (significant values when p < .05). RESULTS: The prophylactic treatment (60.4% of the patients) significantly controlled the complications related to some risk factors, such as antiphospholipid antibodies (aPL) and nephritis. Preeclampsia occurred in 14.8% of patients. Patients with pregestational hypertension showed a 2.75 odds ratio of adverse events when compared to the group without chronic hypertension. The presence of proteinuria was associated with a risk of preeclampsia 2.45 times greater, as well as serum creatinine >1.2 mg/dL, which was related to a risk 1.25 times higher than the risk observed in patients with serum creatinine <1.2 mg/dL. A 6-month inactive disease was associated with a better outcome. A value of Estimated Glomerular Filtration Rate (eGFR) < 90 mL/min/1.73 m2 resulted in a 18.73 times greater risk of preeclampsia, intrauterine growth restriction (IUGR), and preterm delivery. DISCUSSION: A multidisciplinary approach in a tertiary care center and a broad prophylactic treatment protocol to patients affected by SLE and complicated by nephritis may definitively foster a successful pregnancy.

Human leukocyte antigen DQ2/DQ8 positivity in women with history of stillbirth.

PROBLEM: The aim of this study was to investigate the prevalence of human leukocyte antigens (HLA) DQ2 and DQ8 haplotypes, two common polymorphisms associate with celiac disease (CD), in women with previous stillbirth, but not affected by CD. METHOD OF STUDY: Women with history of unexplained term stillbirth referred to our Center for High-Risk Pregnancies for a preconception counseling, and women with previous uncomplicated pregnancies, were enrolled as cases and controls. Celiac women were excluded from the study. Genetic tests for HLA DQ2/DQ8 were performed, and patients' data were compared. RESULTS: The population included 56 women with a previous term stillbirth and 379 women with history of uncomplicated pregnancies. The prevalence of HLA-DQ2 or DQ8 positivity was significantly higher in cases than in controls (50% vs 29.5%) (P = 0.0031). Women with HLA DQ8 genotype have a significantly higher risk of stillbirth (OR: 2.84 CI: 1.1840-6.817) and in case of DQ2 genotype the OR for stillbirth was even higher (OR: 4.46 CI: 2.408-8.270). In the stillbirth group, SGA neonates were significantly more frequent in those with HLA-DQ2/DQ8 haplotypes than in those resulted negative to genetic testing (85.7% vs 42 .8%, P = 0.004). CONCLUSION: In women with history of term stillbirth, a significantly higher prevalence of HLA DQ2/DQ8 haplotypes has been found compared to women with previous uneventful pregnancies. In addition, HLA DQ2/DQ8 positivity was significantly associated with suboptimal fetal growth in intrauterine fetal death cases, as shown by an increased prevalence of SGA babies.

Risk of preeclampsia and obstetric outcome in donor oocyte and autologous in vitro fertilization pregnancies.

BACKGROUND: The aim of the study was to assess the outcome of pregnancies achieved by OD in vitro fertilization compared with those obtained by autologous IVF. METHODS: This retrospective cohort study includes 136 consecutive patients who were referred to our centre between 2009 and 2011. According to the mode of conception, they were divided into two groups, whose pregnancy outcomes were analyzed by χ2 Test for unpaired data. RESULTS: Pregnancy-induced hypertension, cesarean section, complications after delivery resulted more frequent in pregnancies from donor oocyte IVF. The other outcomes considered were non-significantly different between the two groups. CONCLUSIONS: The risk of developing preeclampsia, cesarean section, and postpartum complications is higher in patients who conceived by donor oocyte IVF than in patients who underwent autologous IVF.

Continuous subcutaneous insulin infusion (CSII) versus multiple daily injections (MDI) of rapid-acting insulin analogues and detemir in type 1 diabetic (T1D) pregnant women.

OBJECTIVE: To compare glycemic control, maternal-neonatal outcomes and fetal fat body mass growth of type 1 diabetic pregnant women treated with continuous subcutaneous insulin infusion (CSII) or multiple daily injections (MDI) with the long-acting insulin analogue detemir as basal insulin. METHODS: Retrospective study of 53 women, attending the Unit of Prenatal Medicine of Careggi University Hospital, Florence, from 2009 to 2012: 35 treated with CSII, 18 with MDI-detemir. Each woman performed daily blood glucose self-monitoring, had an individualized nutritional therapy, weekly prenatal visits and ultrasound scans (US) according to the Tuscan guidelines. US were also performed every two weeks from 28 to 38 weeks of gestation to assess fetal fat body mass growth. Student's t-test and Chi-square test were performed to compare the groups' results. RESULTS: No significant differences were observed in metabolic control, in any maternal and neonatal outcome nor fetal fat body mass growth for either group. The MDI group needed higher daily doses of insulin (MDI: 1.00 ± 0.32 UI/kg versus CSII: 0.75 ± 0.29 UI/kg, p = 0.007) to reach results comparable to the CSII group. CONCLUSIONS: MDI therapy with detemir is a safe and effective alternative, with a good benefit-cost ratio compared to insulin pumps.

Metabolomic profile of term infants of gestational diabetic mothers.

OBJECTIVE: Maternal diabetes increases the risk of perinatal mortality and morbidity, but the maintenance of antenatal normal glucose serum prevents the majority of neonatal complications. The aim of our study is to compare the metabolomic profile of infants of gestational diabetic mothers (IGDMs) to that of infants of healthy mothers to evaluate if differences remain despite a strict control of gestational diabetes. METHODS: We performed the metabolomics study in cord serum sampled from 30 term IGDMs and 40 controls recording the occurrence of the most frequent complications in IGDMs. RESULTS: We demonstrated that IGDMs have lower level of glucose and higher level of pyruvate, histidine, alanine, valine, methionine, arginine, lysine, hypoxanthine, lipoprotein and lipid than controls, but we did not find any clinical differences. CONCLUSIONS: Our results suggest that prolonged fetal exposure to hyperglycemia during pregnancy can change neonatal metabolomic profile at birth without affecting the clinical course.

[Cigarette smoking in pregnancy: observational prospective study in three towns of Tuscany Region (Central Italy)]. / Fumo di sigaretta in gravidanza: studio osservazionale prospettico in tre città della Toscana.

OBJECTIVE: to assess the prevalence of smoking in pregnancy and its changes after childbirth, and the characteristics associated with a greater likelihood of smoking during pregnancy in a sample of women attending three university hospitals in Tuscany (Central Italy). DESIGN: observational prospective multicentric study. SETTING AND PARTICIPANTS: 1,036 women in ninth month of pregnancy were enrolled at the teaching hospitals of Careggi (Firenze), Pisa and Siena. Women filled a standardized, self-administered questionnaire at enrolment. A second questionnaire was administered by phone to the smoking, ex-smoking and abstinent-during-pregnancy women one year after the delivery. RESULTS: 60.5% of women was never smoker, 17.4% was ex-smoker, 14% of women stopped smoking during pregnancy, and 8.4% were current smokers. Smoking in pregnancy was significantly associated with being younger than 31 years old (OR 1.75; 95%CI 1.01-1.84) and unmarried (OR 1.75; 95%CI 1.10- 2.78), having a low school degree (OR 2.31; 95%CI 1.58-3.36) and a smoking partner (OR 3.03; 95%CI 2.32-3.96). The absolute risk of smoking during pregnancy was 42%. One year after delivery, 44%of women who stopped smoking in pregnancy relapsed. CONCLUSIONS: a not negligible percentage of women residents in Tuscany Region smokes during pregnancy. Relapses after delivery are high. Even if recently in Italy a smoke free legislation was implemented, the study shows a low attention toward passive smoking during pregnancy. Smoking cessation interventions specifically tailored for pregnant women and relapses prevention need to be implemented in Tuscany by all health care professionals who care for women during pregnancy and after delivery.

Pregnancy disorders leading to very preterm birth influence neonatal outcomes: results of the population-based ACTION cohort study.

BACKGROUND: We examined the relationships between -pregnancy disorders leading to very preterm birth -(spontaneous preterm labor, prelabor premature rupture of -membranes (PPROM), hypertension/preeclampsia, -intrauterine growth restriction (IUGR), antenatal hemorrhage, and maternal -infection), both in isolation and grouped together as -"disorders of placentation" (hypertensive disorders and IUGR) vs. -"presumed infection/inflammation" (all the others), and several unfavorable neonatal outcomes. METHODS: We examined a population-based prospective cohort of 2,085 singleton infants of 23-31 wk gestational age (GA) born in six Italian regions (the Accesso alle Cure e Terapie Intensive Ostetriche e Neonatali (ACTION) study). RESULTS: Neonates born following disorders of placentation had a higher GA and better overall outcomes than those born following infection/inflammation. After adjustment for GA, however, they showed higher risk of mortality (odds ratio, OR: 1.4; 95% confidence interval, CI: 1.0-2.0), bronchopulmonary dysplasia (BPD) (OR: 2.5; CI: 1.8-3.6), and retinopathy of prematurity (ROP) (OR: 2.0; CI: 1.1-3.5), especially in growth-restricted infants, and a lower risk of intraventricular hemorrhage (IVH) (OR: 0.5; CI: 0.3-0.8) and periventricular leukomalacia (PVL) (OR: 0.6; CI: 0.4-1.1) as compared with infants born following -infection/inflammation disorders. CONCLUSION: Our data confirm the hypothesis that, in very preterm infants, adverse outcomes are both a function of immaturity (low GA) and of complications leading to preterm birth. The profile of risk is different in different pregnancy disorders.

Glucose variability in diabetic pregnancy.

BACKGROUND: Fetal overgrowth is the most important complication of gestational (GDM) and pregestational diabetes mellitus. METHODS: We correlated maternal glucose profiles, as detected by continuous glucose monitoring (CGM), with fetal growth parameters for 80 pregnant women (32 with type 1 diabetes, 31 with GDM, and 17 healthy controls). Glucose profiles were monitored in the first, second, and third trimesters of pregnancy for type 1 diabetes women and in the second and third trimesters for GDM women and controls. To analyze glycemic variability, we considered the mean amplitude of glycemic excursion, mean glycemia, the continuous overlapping net glycemic action (CONGA), the SD, the High Blood Glucose Index (HBGI), the Low Blood Glucose Index, and the interquartile range (IQR). RESULTS: Mean age was the same for the three groups. Prepregnancy body mass index was higher for the women with diabetes (GDM and type 1) than for controls. The newborn's mean birth weight and ponderal index were higher, although not significantly so, for the women with diabetes than for controls. For the type 1 diabetes patients, ponderal index correlated with the HBGI in the first trimester, CONGA1 and IQR in the second, and mean glycemia and SD in the third. For GDM patients, ponderal index correlated with mean glycemia and the HBGI in the second trimester. CONCLUSIONS: Fetal exposure to glycemic variability and hyperglycemia seems to be important in determining fetal overgrowth in pregnant women with diabetes. Optimal glucose control and less glucose variability are needed as early as possible in both type 1 diabetes and GDM patients to ensure normal fetal growth.

Elevated insulin sensitivity and ß-cell function during pregnancy in mothers of growth-restricted newborns.

The "Barker hypothesis" suggests that low birth weight might predict future risk of developing obesity, cardiovascular disease, and type 2 diabetes. Identification of the causes of fetal growth restriction (FGR) is critical for preventive and management strategies. Some studies indicate that maternal carbohydrate metabolism might be involved in FGR development. We aimed to evaluate, in a large number of normotensive pregnant women with normal glucose tolerance, the effect of insulin sensitivity and ß-cell function on unexplained fetal growth. A total of 1,814 Caucasian pregnant women with normal prepregnancy body mass index were tested with a 75-g, 2-h glucose load (24-28 gestation wk). Insulin sensitivity was evaluated with fasting (QUICKI) and dynamic index (OGIS) and ß-cell function with a modified insulinogenic index as ΔAUC(insulin)/ΔAUC(glucose) and disposition index. FGR was a birth weight below the 5th percentile for gestational age. FGR developed in 99 (5.5%) pregnant women that showed significantly higher QUICKI, OGIS, insulinogenic, and disposition index with respect to women with normal-weight babies (P < 0.0001). By using multiple regression analysis in the FRG group, QUICKI and OGIS appeared as significant independent variables (P < 0.0001 and P < 0.0366, respectively). We conclude that elevated insulin sensitivity seems to be one of the factors involved in determining unexplained fetal growth retardation; its assessment, even only in the fasting state, could be useful to guide any possible monitoring and therapeutic strategies to reduce fetal complications.

Ethical issue and consent form in the management of high-risk pregnancy.

Through the description of two high risk unplanned pregnancy cases and the subsequent interview of the patients, a few years after delivery, this article focuses on the following issues: 1. The importance of a planned pregnancy in a woman with diabetes or other chronic disease; 2. The ethical role of counselling and how it should not be influenced by the ethical belief of the obstetrician; 3. The legal aspect related to the knowledge and qualifications of the obstetrician in the management of a high-risk pregnancy to improve both maternal and fetal outcomes. Here, two cases of complicated type 1 diabetes in women with unplanned pregnancies and the importance of counselling in high-risk pregnancy are presented.

Gestational diabetes mellitus in Italy: a multicenter study.

OBJECTIVE: This prospective study evaluated the impact of gestational diabetes on maternal and fetal outcome in a large cohort of women with gestational diabetes mellitus (GDM) followed up using standardized clinical criteria. STUDY DESIGN: Between 1999 and 2003, we collected 3465 GDM women from 31 Italian regional obstetric or diabetes centers, recording the time and mode of delivery, gestational hypertension, pre-eclampsia, eclampsia, congenital malformations, and neonatal mortality, comparing findings with the Italian general pregnant population. RESULTS: The rate of cesarean sections was 34.9% and macrosomia 8.7% (33.2 and 7.4%, respectively, in the general population, p=ns). The stillbirth and neonatal mortality rates were no different in GDM patients and normal pregnancies (0.34% vs. 0.30%, p=0.176 and 0.29% vs. 0.32%, p=0.748), but the former had twice as many newborn with congenital malformations (2.05% vs. 0.89%, p<0.01; CI 1.64-2.62). A prognostic model for the outcome of pregnancy was built and the concurrent occurrence of several conditions was deemed as a positive outcome. Pregnancies which did not meet one or more of the above criteria were classified as "complicated". On multivariate logistic analysis, only the week of gestation when GDM was diagnosed and prepregnancy BMI were independent predictors of a complicated pregnancy. CONCLUSION: When correctly diagnosed and treated during pregnancy, women with GDM have a pregnancy outcome similar to the general pregnant population, except for a greater likelihood of congenital malformations in the newborn, probably due to unrecognized prior diabetes. Prepregnancy obesity plays an important part in raising the risk of adverse perinatal outcomes in GDM patients.

Breastfeeding and the basal insulin requirement in type 1 diabetic women.

OBJECTIVE: To evaluate whether breastfeeding in women with type 1 diabetes mellitus is associated with a decreased insulin requirement. METHODS: In this prospective study conducted between September 2006 and August 2008, type 1 diabetic pregnant women were recruited before the third trimester of pregnancy. Eligible women had no evidence of diabetes-related complications and were treated with continuous subcutaneous insulin infusion pump therapy. During pregnancy and in the first 8 weeks of the postpartum period, participants performed daily fingerstick blood glucose monitoring with at least 12 measurements per day; insulin dosages were adjusted to maintain normoglycemia. Participant characteristics, diabetic parameters, and neonatal growth were compared between women who breastfed exclusively and women who did not breastfeed. RESULTS: Of 18 women, 12 breastfed and 6 did not. Compared with nonbreastfeeding mothers, breastfeeding mothers showed a decreased need for total daily basal insulin (0.21 +/- 0.05 units/kg per day vs 0.33 +/- 0.02 units/kg per day). The mean value of total daily basal insulin was significantly lower in the breastfeeding group than in the non-breastfeeding group. The mean number of hyperglycemic episodes in the first 2 weeks post partum and during the third to eighth weeks was not different between the groups. However, the mean number of hypoglycemic episodes in the first 2 weeks post partum in the breastfeeding group was significantly higher than in the nonbreastfeeding group (11.9 +/- 2.6 episodes vs 5.5 +/- 1.6 episodes, P<.001). No differences were observed between the groups in neonatal birth weight or infant weight after 8 weeks of age. CONCLUSIONS: Decreased need in total daily basal insulin is caused by increased glucose use during lactation. We recommend that the starting total daily basal insulin dosage for type 1 diabetic women who breastfeed be calculated as 0.21 units times the weight in kg per day. This regimen results in normoglycemia and minimizes the risk of severe hypoglycemia associated with lactation.

Volatile signals during pregnancy: a possible chemical basis for mother-infant recognition.

Human pheromones play a role in regulating relationships and apparently influence partner choice and mother-infant recognition. We analyzed the chemical content of volatiles from sweat patch samples from the para-axillary and nipple-areola regions of women during pregnancy and after childbirth. Solid phase microextraction was used to extract the volatile compounds, which were then characterized and quantified by gas chromatography-mass spectrometry. During pregnancy, women developed a distinctive pattern of five volatile compounds common to the para-axillary and nipple-areola regions (1-dodecanol, 1-1'-oxybis octane, isocurcumenol, alpha-hexyl-cinnamic aldehyde, and isopropyl myristate). These compounds were absent outside pregnancy and had slightly different patterns in samples from the two body areas. Differentiation of the volatile patterns among pregnant women may help newborns to distinguish their own mothers.

Hepatic and mesenteric sarcoidosis without thoracic involvement: a case of severe noncirrhotic portal hypertension and successful pregnancy.

Here we report a case of a 25-year-old woman with mesenteric and hepatic sarcoidosis without lung involvement complicated by severe noncirrhotic portal hypertension. In 1992, at the clinical presentation, she had abdominal pain, asthenia, and weight loss. Splenomegaly, signs of flogosis, sideropenic anemia, and cholestasis were observed. Laparoscopic abdominal exploration and histological analysis demonstrated noncaseating granulomas of the liver, abdominal lymph nodes, and mesenteric connective tissue. The clinical course was severe with episodic remissions and recrudescences characterized by ascites (mild or moderate), elevation of bilirubin levels (mean: 1.1 mg/dl; range: 0.9-3.5 mg/dl), reduction of albumin levels (mean: 4 g/dl; range: 3.4-4.2 g/dl), and prolongation of elevated international normalized ratio (mean: 1; range: 0.9-1.4). In 1997, the patient had variceal bleeding. Complete hemostasis was obtained with band ligation. Liver function was preserved, and until 2000 the disease remained stable. In 2001, the patient became pregnant. At the 36th week of gestation, the patient delivered a healthy female infant and afterwards remained in clinical remission. This report stresses that sarcoidosis can have a hepatic and mesenteric involvement in absence of thoracic lymphadenopathy. Portal hypertension may be severe, and in absence of cirrhosis it may be associated with portal thrombosis. Finally, portal hypertension in patients with hepatic sarcoidosis and preserved liver function should not be considered as an absolute contraindication to pregnancy.

A multicenter Italian study on pregnancy outcome in women with diabetes.

BACKGROUND AND AIM: To determine pregnancy outcome in women with type 1 and type 2 diabetes. METHODS AND RESULTS: A prospective study was conducted in 33 centers in Italy between 1999 and 2003, mainly recording preterm delivery, stillbirths, neonatal mortality, congenital malformations and birthweight. Of the 668 women examined, 504 had type 1 diabetes and 164 had type 2. Pre-pregnancy counseling had been provided to 43.9% of the women who had type 1 diabetes and 29.1% of the women who had type 2 diabetes and correlated with a better HbA1c value throughout pregnancy. The preterm delivery rate was significantly higher in type 1 and 2 diabetics than in normal pregnant women and was related to HbA1c values higher than 8%, gestational hypertension, pre-eclampsia and the presence of retinopathy before pregnancy. The stillbirth and neonatal mortality rates were also higher in diabetic pregnant women (1.26% and 0.63%, respectively) than in Italian pregnancies in general (0.30% and 0.32%), and the same was true for major congenital malformations (4.9% for diabetic pregnancies, 0.86% for normal Italian pregnancies). CONCLUSIONS: In our population, pregnancy in diabetic women was still associated with a high rate of stillbirths, neonatal mortality and congenital malformations. Unplanned pregnancies and non-optimal glycemia control may help explain the high rates of maternal and neonatal complications.

Distribution of the glycoconjugate oligosaccharides in the human placenta from pregnancies complicated by altered glycemia: lectin histochemistry.

The aim of this study was to investigate the distribution of the oligosaccharides of the glycoconjugates in placentas from pregnancies complicated by different degree of altered glycaemia. Placentas from women with physiological pregnancies (group 1), with pregnancies complicated by minor degree of glucose intolerance (group 2) and with pregnancies complicated by gestational diabetes mellitus (GDM) treated with insulin (group 3) were collected. Ten lectins were used (ConA, WGA, PNA, SBA, DBA, LTA, UEA I, GSL II, MAL II and SNA) in combination with chemical and enzymatic treatments. The data showed a decrease of sialic acid linked alpha(2-6) to galactose/N-acetyl-D-galactosamine and an increase of N-acetyl-D-glucosamine in the placentas of the pathological groups, in particular the group 3, comparing to the group 1. A decrease of L-fucose (LTA) and D-galactose-(beta1-3)-N-acetyl-D-galactosamine, and an increase and/or appearance of L-fucose (UEA I) and N-acetyl-D-galactosamine were observed in both the pathological groups, particularly in the group 2, with respect to the group 1. In GDM, and even in pregnancies with a simple alteration of maternal glycaemia, the changes in the distribution of oligosaccharides could be related to alteration of the structure and functionality of the placenta.

Lectin binding in the umbilical cord in altered glycemia.

OBJECTIVE: Content and distribution of the oligosaccharides in the umbilical cord from pregnancies with altered glycemia were investigated. STUDY DESIGN: A prospective cohort study was conducted in the Florence Policlinic of Careggi, Italy. Samples of cord from physiological pregnancies (n=20), from pregnancies with minor degree of glucose intolerance (n=20) and from pregnancies with gestational diabetes mellitus (GDM) treated with insulin (n=20) were collected. Eleven lectins were used (ConA, WGA, PNA, SBA, DBA, LTA, UEA I, OOA, GSL II, MAL II and SNA) in combination with chemical and enzymatic treatments. RESULTS: Increase of N-acetyl-d-glucosamine and a loss of sialic acid in the umbilical cord of the cases with minor degree of glucose intolerance with respect to the other study groups was observed. d-Galactose(beta1-->3)-N-acetyl-d-galactosamine, N-acetyl-d-galactosamine and l-fucose were in less amount in both the pathological groups with respect to the control one. CONCLUSION: The increase of some glycoconjugates carbohydrates and the loss of others in the umbilical cord from pregnancies with minor degree of glucose intolerance might be related to its morphofunctional alterations in a not diabetic altered glycemia. Moreover, the treatment with insulin in the GDM might play a role in restoring partially the normal glycosilation in the cord components in the attempt to renew some their functions.

Endothelial nitric oxide synthase gene influences the risk of pre-eclampsia, the recurrence of negative pregnancy events, and the maternal-fetal flow.

OBJECTIVES: Pre-eclampsia is associated with vascular endothelial dysfunction, adverse pregnancy outcome and cardiovascular disease in later life. An inadequate nitric oxide availability related to polymorphisms in the endothelial nitric oxide synthase gene (eNOS) might predispose to the disease. METHODS: We investigated the role of eNOS T-786C, G894T and 4a4b polymorphisms in predisposing to both pre-eclampsia and the recurrence of negative pregnancy events, per se and in the presence of angiotensin-converting enzyme (ACE) DD genotype, and investigated their influence on maternal-fetal flow in 106 non-thrombophilic women with a history of pre-eclampsia, compared with 106 women with a history of normal pregnancy. RESULTS: No association between eNOS polymorphisms and predisposition to pre-eclampsia was found; nevertheless, the contemporary presence of eNOS 894TT and -786CC genotypes represented a susceptibility factor to the disease. In 48 out of 106 women, documented complications (pre-eclampsia and fetal growth restriction) were present in the current pregnancy. The eNOS 894TT genotype influenced the risk of recurrence of negative events (odds ratio = 5.45), particularly in contemporary women homozygous for both eNOS 894TT and ACE DD genotypes (odds ratio = 11.4). Throughout the pregnancy, a progressive alteration of maternal-fetal flow indices was found in women carrying the eNOS 894TT genotype, and this effect was strengthened in women with the contemporary presence of the ACE DD genotype. CONCLUSIONS: An original finding is the increased risk of pre-eclampsia and recurrence of pregnancy negative events, probably by modulating the maternal-fetal flow, in women homozygous for the eNOS 894T allele previously analyzed for the ACE I/D polymorphism.