Effects of androgenic properties of progestin combined with ethinyl estradiol on vascular endothelial reactivity, plasma lipids and free radical production in women with endometriosis.

Aim: Endothelial reactivity is inhibited and oxidative stress is enhanced in women with endometriosis. Testosterone may adversely affect lipids and endothelium. We investigated the effects of androgenic properties of progestins combined with ethinyl estradiol (EE) on endothelial function, lipids and free radical production in such women.

Trivalent Rare-Earth Metal Amide Complexes as Catalysts for the Hydrosilylation of Benzophenone Derivatives with HN(SiHMe ) by Amine-Exchange Reaction.

The rare-earth metal complexes Ln(L )[N(SiHMe ) ](thf) (Ln=La, Ce, Y; L =N,N''-bis(pentafluorophenyl)diethylenetriamine dianion) were synthesized by treating Ln[N(SiHMe ) ] (thf) with L H . The lanthanum and cerium derivatives are active catalysts for the hydrosilylation of benzophenone derivatives with HN(SiHMe ) . An amine-exchange reaction was revealed as a key step of the catalytic cycle, in which Ln-Si-H β-agostic interactions are proposed to promote insertion of the carbonyl moiety into the Si-H bond.

Cerium(IV) Carboxylate Photocatalyst for Catalytic Radical Formation from Carboxylic Acids: Decarboxylative Oxygenation of Aliphatic Carboxylic Acids and Lactonization of Aromatic Carboxylic Acids.

We found that generated cerium(IV) carboxylate generated by mixing the precursor Ce(OBu) with the corresponding carboxylic acids served as efficient photocatalysts for the direct formation of carboxyl radicals from carboxylic acids under blue light-emitting diodes (blue LEDs) irradiation and air, resulting in catalytic decarboxylative oxygenation of aliphatic carboxylic acids to give C-O bond-forming products such as aldehydes and ketones. Control experiments revealed that hexanuclear Ce(IV) carboxylate clusters initially formed in the reaction mixture and the ligand-to-metal charge transfer nature of the Ce(IV) carboxylate clusters was responsible for the high catalytic performance to transform the carboxylate ligands to the carboxyl radical. In addition, the Ce(IV) carboxylate cluster catalyzed direct lactonization of 2-isopropylbenzoic acid to produce the corresponding peroxy lactone and γ-lactone via intramolecular 1,5-hydrogen atom transfer (1,5-HAT).

Endometrial cancer arising from adenomyosis: Case report and literature review of MRI findings.

Endometrial cancer arising from adenomyosis (EC-AIA) is extremely rare, and the typical magnetic resonance imaging (MRI) findings of EC-AIA have not been established. We report a case of EC-AIA that was detected preoperatively on MRI and conduct a literature review of the MRI findings of EC-AIA.

Synthesis and Characterization of Alkoxide-Bridged Heterometallic Clusters of Cerium and Copper.

We prepared alkoxide-bridged heterometallic clusters of cerium and copper by the complexation of two metal alkoxides: treatment of Ce(OBu) with [Cu(OBu)] in a 1:1 metal ratio produced an alkoxide-bridged tetranuclear cluster, CeCu(OBu) (). Upon adding 4-substituted pyridine derivatives to complex , trinuclear clusters, CeCu(OBu)() (: L = DMAP (4-dimethylaminopyridine); : L = BPY (4,4'-bipyridine)), were obtained along with the release of 0.25 equiv of [Cu(OBu)], in which a three-coordinated copper center was involved.

Hepatic Effects of Estrogen on Plasma Distribution of Small Dense Low-Density Lipoprotein and Free Radical Production in Postmenopausal Women.

Aim: Hepatic effects of estrogen therapy on low-density lipoprotein (LDL) subfraction or oxidative stress have not been previously evaluated. The purpose of the present study was to investigate whether the differential hepatic effects of estrogen affect plasma distribution of small dense LDL and free radical production in postmenopausal women.

Methods: In all, 45 postmenopausal women were given 0.

Pregnancy-induced hypertension is associated with an increase in the prevalence of cardiovascular disease risk factors in Japanese women.

Objective: This study assessed whether pregnancy-induced hypertension (PIH) affects the prevalence of cardiovascular disease (CVD) risk factors in later life among Japanese women.

Methods: Study participants were 1,185 women (mean [SD] age, 46.5 [5.

Differences in vascular reactivity between pregnant women with chronic hypertension and preeclampsia.

The purpose of this study was to evaluate the distinct pathogenic mechanisms underlying chronic hypertension in pregnancy and preeclampsia in terms of oxidative stress and vascular reactivity. A total of 17 women with uncomplicated pregnancies, 30 women with preeclampsia and 17 women with chronic hypertension were evaluated. We measured serum derivatives of reactive oxygen metabolites (d-ROMs; marker of oxygen free radicals), flow-mediated vasodilation (FMD; marker of endothelial function) and intima-media thickness in the carotid artery (IMT; marker of atherogenesis) during pregnancy and 1 month after delivery.

Differences in levels of oxidative stress in mothers and neonate: the impact of mode of delivery.

Objective: To determine there are differences in the production levels of oxygen free radical between mothers and neonates by the mode of delivery, we measured oxygen free radical concentrations in maternal vein and umbilical artery.

Methods: Forty-four women with singleton term pregnancies were prospectively recruited and classified into two groups: those who had a spontaneous uncomplicated vaginal delivery (VD group; n = 21), and those who had an elective cesarean delivery (CD group; n = 23). We determined maternal and fetal oxidative stress levels by measuring concentrations of derivatives of reactive oxygen metabolites (d-ROMs) in maternal vein before delivery and on postnatal day 5, and in umbilical artery at delivery.

PP043. Oxidative stress in the maternal body also affects the fetus in preeclamptic women with fetal growth restriction.

The purpose of the present study was to determine whether oxidative stress occurring in the maternal body also affects the fetus in preeclamptic women with FGR. We ∥@consecutively recruited 17 preeclamptic women with FGR, 16 preeclamptic women without FGR, and 16 healthy pregnant women with uncomplicated pregnancy. We measured concentrations of derivatives of reactive oxygen metabolites (d-ROMs) as a marker of oxygen free radicals in a maternal vein, umbilical artery, and umbilical vein.

Increased oxygen free radical production during pregnancy may impair vascular reactivity in preeclamptic women.

To determine whether enhanced oxidative stress during pregnancy impairs vascular endothelial function and improves after delivery in preeclamptic women, we measured serum parameters of oxidative stress and endothelial function during pregnancy and 1 month after delivery in women with or without preeclampsia. We evaluated 18 participants with uncomplicated pregnancies, 11 with mild preeclampsia and 13 with severe preeclampsia. The plasma concentrations of reactive oxygen metabolite derivatives (d-ROMs) were measured, and the biological antioxidant potential (BAP) was determined to evaluate the oxygen free radicals and antioxidants, respectively.

The severity of hypoxic changes and oxidative DNA damage in the placenta of early-onset preeclamptic women and fetal growth restriction.

Objective: To investigate the relation between the severity of hypoxic changes and oxidative DNA damage in the placenta of early and late-onset preeclampic women and fetal growth restriction (FGR), serum parameters of oxidative stress, placental hypoxic change, and oxidative DNA damage were determined.

Methods: We examined 10 participants with uncomplicated pregnancies, 13 with early-onset and 12 with late-onset preeclampsia. Maternal and umbilical plasma derivatives of reactive oxygen metabolites (d-ROMs) were measured as markers of oxygen free radicals.

Increased oxidant generation in the metabolism of hypoxanthine to uric acid and endothelial dysfunction in early-onset and late-onset preeclamptic women.

Objective: The purpose of this study was to evaluate the association of vascular endothelial dysfunction with increased oxidant generation in the metabolism of hypoxanthine to uric acid in early-onset compared to late-onset preeclampsia.

Methods: We investigated 12 women with early-onset preeclampsia, 14 women with late-onset preeclampsia, and 20 women with uncomplicated pregnancies. We measured serum derivatives of reactive oxygen metabolites (d-ROMs) as a marker of oxygen free radicals, serum biological antioxidant potential (BAP), hypoxanthine, uric acid, uric acid clearance (CUA), and flow-mediated vasodilation (FMD) as a marker of endothelial function in preeclamptic women.

Prophylactic administration of melatonin to the mother throughout pregnancy can protect against oxidative cerebral damage in neonatal rats.

Objective: The purpose of this study was to investigate whether prophylactic administration of melatonin to the mother throughout pregnancy could protect against ischemia/reperfusion (I/R)-induced oxidative brain damage in neonatal rats.

Methods: The utero-ovarian arteries were occluded bilaterally for 30 min in female Wistar rats on day 16 of pregnancy to induce fetal ischemia. Reperfusion was achieved by releasing the occlusion and restoring circulation.

Increased asymmetric dimethylarginine and enhanced inflammation are associated with impaired vascular reactivity in women with endometriosis.

Objective: Enhanced inflammatory responses which may inhibit vascular reactivity, are associated with endometriosis development. Asymmetric dimethylarginine (ADMA), an inhibitor of endogenous nitric oxide synthase, is also implicated in endothelial dysfunction. We aimed to determine whether plasma ADMA and systemic inflammation are associated with endothelial function in women with endometriosis.

Adipocytokines and endothelial function in preeclamptic women.

Visceral fat accumulation stimulates the production of adipocytokines in patients with metabolic syndrome. Excess body weight gain during pregnancy is a risk factor for preeclampsia. To evaluate whether the pathogenesis of preeclampsia is similar to that of metabolic syndrome, we measured plasma adipocytokine concentrations and investigated the association between plasma adiponectin concentrations and body weight gain or endothelial function in preeclamptic women.

Therapeutic effects of maternal melatonin administration on ischemia/reperfusion-induced oxidative cerebral damage in neonatal rats.

Background: We have previously demonstrated that prophylactic administration of melatonin to pregnant rats can protect against ischemia/reperfusion (I/R)-induced oxidative cerebral damage in fetal rats. However, the effects of maternal administration of melatonin after an ischemic episode on the brains of neonatal rats exposed to oxidative stress in utero have not been evaluated.

Objectives: The purpose of the present study was to investigate whether maternal administration of melatonin after an ischemic episode can prevent oxidative cerebral damage in neonatal rats.

Melatonin preserves fetal growth in rats by protecting against ischemia/reperfusion-induced oxidative/nitrosative mitochondrial damage in the placenta.

We have previously demonstrated that melatonin protects against ischemia/reperfusion-induced oxidative damage to mitochondria in the fetal rat brain. The purpose of the present study was to evaluate the effects of maternally administered melatonin on ischemia/reperfusion-induced oxidative placental damage and fetal growth restriction in rats. The utero-ovarian arteries were occluded bilaterally for 30 min in rats on day 16 of pregnancy to induce fetal ischemia.

Successful video-assisted thoracic surgery lobectomy in a single-lung patient.

In terms of perioperative management, it is extremely difficult to perform a video-assisted thoracic surgery lobectomy for primary lung cancer in patients previously undergoing a contralateral pneumonectomy. We herein describe the successful video-assisted thoracic surgery lobectomy with systematic mediastinal lymph node dissection in a single-lung patient with clinical stage IA nonsmall cell lung cancer. Our experience indicates surgeons may consider the procedure if the following conditions are met: (1) satisfactory pulmonary function, (2) the selective bronchial blockade of the lobe to be resected, and (3) the effective retraction of the inflated lung.

Effects of iron-unsaturated human lactoferrin on hydrogen peroxide-induced oxidative damage in intestinal epithelial cells.

Human milk (HM) contains various bioactive antioxidants. Lactoferrin (Lf) has been assumed to be one of the major antioxidants in HM. We examined the antioxidative properties of iron-unsaturated human Lf (apo-hLf, the major form of Lf in HM) in two intestinal epithelial cell lines: (1) An intestinal epithelial cell line (IEC-6) were preincubated for 24 h with either 50 microg/mL of apo-hLf, iron-saturated human Lf (holo-hLf), iron-unsaturated bovine transferrin (apo-bTf), or 800 ng/mL of the iron-chelating compound deferoxamine (DFX), followed by hydrogen peroxide (H2O2) challenge to induce oxidative stress.

Comparison of the phospholipid classes in human milk in Japanese mothers of term and preterm infants.

Background: Phospholipids (PLs) play an essential role in the growth and brain development of infants.

Aim: To investigate PL composition in human milk (HM), including lysophosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine, phosphatidylcholine (PC) and sphingomyelin (SM), from healthy Japanese mothers. Analyses were performed on colostrum, transitional milk and mature milk from mothers of preterm and term infants.