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Direction of estradiol metabolism as a control of its hormonal action--uterotrophic activity of estradiol metabolites.

The uterotrophic activities of the catechol metabolites of estradiol 2-hydroxyestrone, 2-methoxyestrone and 2-hydroxyestradiol were measured under conditions of continuous administration of sc implanted paraffin pellets. The activity of these estrogens was compared to that of estradiol-17beta and its other principal metabolites estrone, estriol and 15alpha-hydroxyestriol (estetrol). The major catechol estrogens, 2-hydroxyestrone and 2-methoxyestrone, and the pregnancy metabolite, 15alpha-hydroxyestriol, exhibited no uterotrophic activity. The minor catecholestrogen, 2-hydroxyestradiol, showed …

Interferential current: a new option for the treatment of sexual complaints in women with premature ovarian insufficiency using systemic hormone therapy: a randomized clinical trial.

OBJECTIVE: The aim of the study was to evaluate the efficacy of interferential current (IC) in the sexual function of women with premature ovarian insufficiency (POI) using systemic hormone therapy (HT), compared to topical estriol. METHODS: A randomized clinical trial with 40 women with POI using systemic HT, who were sexually active and referred for dyspareunia and reduction of lubrication. The women were divided into two treatment groups for 4 weeks: IC group (eight electrotherapy sessions twice a week); or E group (estriol vaginal cream, daily application, 0.5 mg/d). The Female Sexual Fun…

The use of a unique co-culture model of fetoplacental steroidogenesis as a screening tool for endocrine disruptors: The effects of neonicotinoids on aromatase activity and hormone production.

Estrogen biosynthesis during pregnancy is dependent on the collaboration between the fetus producing the androgen precursors, and the placen … lacental co-culture and concordingly, estradiol and estrone production were increased. In contrast, estriol production was strongly inhibited by the neonicotinoids. All three pesticides induced the expression of CYP3A7 in H295R cells, and this induction was reversed by co-treatment of H295R cells with exogenous estriol. CYP3A7 is normally expressed in fet …

Нацеливаюсь на гормональное лечение мозга в менопаузе.

Эстрогены являются нейрозащитными, и менопауза может способствовать нейродегенерации. Эстриол преимущественно связывает бета-рецептор эстрогена (ERβ) в мозге для обеспечения нейрозащиты. Ранее пероральный эстриол повышал скорость когнитивной обработки и уменьшил атрофию коры головного мозга в месяц лечения twelve в случае женщин с множественным склерозом (МС). В данном случае лечение с помощью волдыря, предназначенного для здоровых менопаузальных женщин, содержащих эстриол и прогестерон (Pearlpak), оценивалось с точки зрения его воздействия на когнитивные симптомы, характерные для домена, в ря

Совпадение в аннотации оригинала
Estrogens are neuroprotective, and menopause may contribute to neurodegeneration. Estriol preferentially binds estrogen receptor beta (ERβ) in brain to induce neuroprotection. Previously, oral estriol improved cognitive processing speed and reduced cerebral cortex atrophy at treatment month twelve in women with multiple sclerosis (MS). Here, treatment with a…

Enlarged nuchal translucency and low serum protein concentrations as possible markers for Zellweger syndrome.

We present a case of a fetus in which an enlarged nuchal translucency was detected at 12 weeks' gestation. The karyotype was normal. Subsequent ultrasound examination showed no obvious fetal abnormalities apart from a mild pericardial effusion. Serum screening revealed very low concentrations of estriol and human chorionic gonadotropin. After birth the diagnosis of Zellweger syndrome was made. Nuchal translucency screening, estriol level identification and detailed ultrasound scanning may help to identify fetuses affected by this syndrome.

Intranasal topical estrogen in the management of epistaxis in hereditary hemorrhagic telangiectasia.

CONCLUSION: Application of topical estriol ointment is an effective treatment for hereditary hemorrhagic telangiectasia (HHT) epistaxis. OBJECTIVE: HHT is an autosomal-dominant disease characterized by epistaxis in more than 96% of patients. Management of this major symptom, epistaxis, has not been standardized. This study reports experience with topical application of estriol in patients with HHT. METHODS: Five patients with a confirmed diagnosis of HHT who first visited the hospital between 2012 and 2013 received 0.1% estriol ointment and were guided to apply the ointment twice daily to th…

Maternal serum analyte levels after first-trimester multifetal pregnancy reduction.

OBJECTIVE: Our purpose was to assess the effect of multifetal pregnancy reduction on maternal serum levels of analytes used for screening low-risk women for fetal chromosome abnormalities and neural tube defects. STUDY DESIGN: Peripheral blood samples were obtained between 15.09 and 20.9 weeks' gestation from 10 consecutive women who had undergone first-trimester multifetal pregnancy reduction. The samples were assayed for levels of alpha-fetoprotein, human chorionic gonadotropin, and unconjugated estriol. Analyte concentrations were interpreted within our maternal serum screening program. R…

[Hormonal supervision of threatened abortion. diagnosis and therapy (author's transl)].

In the supervision of threatened abortion echography and cardiotocography take precedence over the determination of pregnancy hormones. In early pregnancy a fall in HCS concentration in the plasma and HCG excretion in the urine is to be considered prognostically unfavorable for the outcome of the pregnancy. The same applies to falling progesterone levels. In late pregnancy a fall of HCS or estriol concentration in the serum or a fall in estriol excretion in the 24 hour urine indicate fetal danger. The decision to end pregnancy can only be made from the complete obstetric situation.

Oxytocin challenge test in monitoring high-risk pregnancies.

Eighty-nine pregnancies, at risk for placental insufficiency, were monitored with serial oxytocin challenge tests (OCT) and estriol determinations on 24-hour urine collections. Intraamniotic catheters were used to accurately record intrauterine pressure in 63% of the tests; 114 of the 116 tests (98%) were adequate for interpretation. Thirteen positive tests were recorded; however, in only 2 cases did the positive OCT predict a dysmature-postmature infant when estriol determinations were normal. Prompt delivery following a positive OCT can significantly reduce the incidence of fetal wastage.

Metabolism of estradiol in greyhounds and German shepherd dogs. An investigation with special reference to hip dysplasia.

Metabolism of estradiol was investigated in 5 dogs, 3 female Greyhounds with radiographically perfect hip joints and 2 female German Shepher … were collected from the dogs for 6--8 days. Determination of urinary estrone, estradiol-17beta, and estriol was made. It was found that most of the injected estradiol was excreted unmetabolized in all dogs. A significant amount of the injected estradiol was converted to estrone and a small amount to estriol. There was no significant difference in the excr …

Further investigation on the predictive value of human placental lactogen in high-risk pregnancies.

Blood samples were taken from 254 women with pregnancies with various complications and 119 completely normal pregnant women for measurement of serum human placental lactogen (hPL) during the third trimester. The value of this test in the management of these pregnancies was retrospectively evaluated through details of outcome. Serum hPL and urinary estriol were compared as tools for assessment of fetal condition. Serum hPL was found to be very efficient in the prenatal diagnosis of intrauterine growth retardation associated with maternal hypertension. Low hPL levels were recorded in all severe…

Hormone replacement therapy plus pelvic floor muscle exercise for postmenopausal stress incontinence. A randomized, controlled trial.

OBJECTIVE: To investigate the effects of the combination of pelvic floor muscle exercise (PFME) and estriol on postmenopausal stress incontinence (SI). STUDY DESIGN: Sixty-six patients with postmenopausal SI were randomized to a group treated with a combination of estriol (1 mg/d) and PFME (group A, n = 32) and a group treated with PFME alone (group B, n = 34). Efficacy was evaluated every three months based on stress scores obtained from a urinary incontinence (UI) questionnaire. RESULTS: A significant decrease in stress score was observed in mild and moderate UI patients in both groups thr…

The triple-marker test in predicting fetal aneuploidy: a compromise between sensitivity and specificity.

OBJECTIVE: to review the contribution of unconjugated estriol in Down's syndrome detection, and influence of maternal age, cut-off choice, and population specificity on the balance between triple-marker test sensitivity and specificity. STUDY DESIGN: Prenatal karyotyping was performed in 2833 pregnant women, 73% of them over the age of 34. Duration of gestation was determined by ultrasound in 98% of women. Prior to amniocentesis, the serum levels of alpha-fetoprotein, human chorionic gonadotropin and unconjugated estriol were evaluated and corrected for weight. The risk of trisomy 21 was calc…

Multiple-marker screening in pregnancies with hydropic and nonhydropic Turner syndrome.

OBJECTIVE: The combination of maternal serum alpha-fetoprotein, unconjugated estriol, and human chorionic gonadotropin levels and maternal age has been used to increase the sensitivity of screening for fetal Down syndrome and trisomy 18 in early-second-trimester pregnancies. We hypothesized that a unique pattern of these analytes also may be characteristic of fetal Turner syndrome, with or without hydrops. STUDY DESIGN: We studied preamniocentesis, second-trimester maternal serum specimens from seven hydropic and eight nonhydropic cases of fetal Turner syndrome. Clinical and pathologic record…

The advantages of using triple-marker screening for chromosomal abnormalities.

OBJECTIVE: Our purpose was to assess the utility of triple-marker serum screening for chromosomal abnormalities. STUDY DESIGN: Our laboratory received 10,605 samples that were between 15 and 22 weeks' gestation for maternal serum screening of chromosomal abnormalities. Triple-marker maternal serum screening consisted of alpha-fetoprotein, human chorionic gonadotropin, and unconjugated estriol in conjunction with maternal age. Women > or = 35 years old were first offered amniocentesis. If they refused amniocentesis, they were offered the screening test. A second-trimester risk for trisomy 21 >…

Adrenal cortical function in the postmature fetus and newborn infant.

The umbilical venous blood concentrations of cortisol, dehydroepiandrosterone sulfate (DHAS), and unconjugated estriol were compared in 54 normal, 37 postterm, and 22 postmature newborns. Pre- and postadrenocorticotropic hormone (ACTH) stimulation levels of serum cortisol and DHAS were compared in the first 2 to 4 days of life in 19 postterm and 15 postmature infants. Comparison was also made between vaginally an cesarean section delivered postterm and postmature newborns. There were significantly greater cord blood cortisol levels in th postmature [260 +/- 22 ng/ml (+/- S.E.)], than in the no…

Placental function and renal tract studies in pre-eclampsia with proteinuria and long-term maternal consequences.

A total of 99 patients with pre-eclampsia and proteinuria were managed conservatively between 30 and 37 weeks of gestation, based on serial urinary estriol, liquor amnii, and renal function studies. The over-all perinatal wastage was 14 per cent, but was 35 per cent in association with subnormal estriol excretion and oligohydramnios (less than 250 ml.). In severe pre-eclampsia (blood pressure greater than 170/110 mm. Hg with proteinuria greater than 5 Gm. per liter) the incidence of subnormal estriol was 73 per cent and, becuase of this and the associated maternal hazards, conservative treatme…

Therapeutic effects of estrogens on inflammatory demyelination in a mouse model of multiple sclerosis.

Multiple Sclerosis (MS) is a neurodegenerative autoimmune disease in which the immune system targets the myelin sheath of nerve axons, leading to a variety of neurological signs. Sex hormones are thought to be important factors in MS since pregnancy and oral contraceptives reduce both symptoms and relapses. During pregnancy, remissions occur primarily in the third trimester when estradiol and estriol are elevated. We have investigated the role of these two hormones in an experimental model of virus-induced MS. Theiler's murine encephalomyelitis virus (TMEV) causes an inflammatory demyelinating…

[Blood lipids and the clinical state of hormone-treated women during menopause].

The aim of the work was to investigate the influence on lipids and lipoproteins in blood serum exerted by smallest, preventing hot flushes, doses of mestranol and diethylstilbestrol administered with chlormadinon by sequential method as well as estriol by cyclic method. In the studied women, prior to treatment, after 1, 3 and 6 months of therapy, the made evaluation also covered the intensity of climacteric symptoms according to Kupermann scale, and the concentration of FSH, LH, estadiol as well as testosterone in blood serum. Moreover the arterial blood pressure and the body mass were measure…

Elevated second-trimester dimeric inhibin A levels identify Down syndrome pregnancies.

OBJECTIVE: Our purpose was to determine whether second-trimester dimeric inhibin A levels distinguish Down syndrome pregnancies from euploid pregnancies. STUDY DESIGN: With use of a commercially available enzyme-linked immunosorbent assay (Serotec, Oxford) inhibin A medians were established in stored sera from 40 to 50 euploid pregnancies at each week of gestation from 14 to 20 weeks and from 33 Down syndrome pregnancies. Maternal serum alpha-fetoprotein, unconjugated estriol, and human chorionic gonadotropin levels measured in each sample before storage were retrieved. The performance of inh…