Publications by authors named "Brabec R"

Aims: To evaluate the 3-year follow-up results of two children delivered at our institution in 2019 from mothers with a transplanted uterus.

Methods: Observational data on pregnancy outcomes, neonatal course, and growth trajectory in two children born to mothers after uterus transplantation, including 3-year follow-up and neurodevelopmental status assessed using the Bayley Scales of Infant and Toddler Development, third edition (Bayley-III).

Results: Both children were born prematurely via uneventful caesarean sections, to mothers with Mayer-Rokitansky-Küster-Hauser syndrome and a transplanted uterus.

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Objective: Changes in oximeter averaging times have been noted to affect alarm settings. Automated algorithms (A-FiO) assess FiO faster than oximeter averaging, potentially impacting their effectiveness.

Methods: In a single NICU routinely using 15 fabian-PRICO A-FiO systems, neonates were randomly exposed to SpO averaging time settings switched every 12 h among short (2-4 s), medium (10 s), and long (16 s) oximeter averaging times for the entire duration of their A-FiO exposure.

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Background: Surgical risk in patients with unruptured aneurysms is well known. The relative impact of surgery and natural history of subarachnoid haemorrhage (SAH) on patients in good clinical condition (World Federation of Neurological Surgeons [WFNS] grades 1 and 2) is less well quantified. The aim of this study was to determine causes of poor outcome in patients admitted in good grade SAH.

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Objective: The newborns of diabetic mothers suffer from perinatal complications more frequently than the newborns of healthy women.

Methods: We used for 7 days a real time continuous glucose monitoring system (RT-CGMS) to monitor glucose homeostasis and manage glucose administration in a premature newborn of a diabetic mother.

Results: The boy was born at 35 + 5 gestational weeks with typical signs of diabetic fetopathy.

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Cervical total disc replacement (CTDR) aims to decrease the incidence of adjacent segment disease through motion preservation in the operated disc space. Ongoing data collection and increasing number of studies describing heterotopic ossification (HO) resulting in decreased mobility of implants, forced us to carefully evaluate our long-term clinical and morphological results of patients with CTDR. We present the first 54 consecutive patients treated with 65 ProdiscC prostheses during a 12-month period (2/2004-3/2005).

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To evaluate the results of use of T-tube ileostomy in selected cases of intestinal perforation in extremely low birth weight (ELBW) neonates. The records of 288 ELBW neonates treated at author's institution, from 1998 to 2003 were retrospectively reviewed to identify neonates operated for intestinal perforation with T-tube placement. T-tube was inserted into the bowel through the site of perforation or proximally to the perforated gut via separate stab incision.

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The PHSRN sequence of the plasma fibronectin (pFn) cell-binding domain induces human keratinocytes and fibroblasts to invade the naturally serum-free extracellular matrices of sea urchin embryos. The potency of acetylated, amidated PHSRN (Ac-PHSRN-NH(2)) is significantly increased, making it more active on a molar basis than the 120-kDa cell-binding domain of pFn. Arginine is important to this activity because PHSAN and PHSEN are inactive, as is a randomized sequence peptide, Ac-HSPNR-NH(2).

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Using naturally serum-free SU-ECM basement membranes as invasion substrates showed that plasma fibronectin was necessary to stimulate invasion by DU 145 human and metastatic MATLyLu (MLL) rat prostate carcinoma cells. This activity mapped to the PHSRN sequence, which induced invasion through alpha5beta1 integrin. PHSCN, a competitive inhibitor, blocked both PHSRN- and serum-induced invasion.

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We investigated the physiological basis for the trophic effect of glucocorticoids in rat corpora lutea in the absence of pituitary gonadotropins. Immature (Day 29) Sprague-Dawley rats were given eCG and hCG to induce the development of corpora lutea and were hypophysectomized on Day 32. Beginning on Day 40, rats received twice-daily s.

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Using spectrofluorimetry and fluorescence microscopy, we analyzed the uptake and degradation of fluorescein isothiocyanate-conjugated bovine serum albumin (FITC-albumin) by the rat visceral yolk sac (VYS) during whole embryo culture. Rat conceptuses exposed continuously to FITC-albumin had linear increases of both acid-soluble and acid-insoluble FITC fluorescence in the VYS. Smaller amounts of FITC fluorescence that were nearly all acid soluble accumulated in the extraembryonic fluid, while the embryo proper did not accumulate a significant amount of fluorescence.

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In this article the pathophysiology and diagnosis of neonatal respiratory distress syndrome as a primarily form of surfactant deficiency is disclosed. Attention is paid to surfactant composition, productive and secretion in the alveoli and metabolic turnover as well. From clinical point the view basic principles concerning the surfactant replacement is discussed.

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The medial preoptic area (MPOA), bed nucleus of the stria terminalis (BNST), and medial amygdaloid nucleus (Me) are essential for male sexual behavior in the Syrian hamster. These nuclei received chemosensory stimuli and gonadal steroid signals, both of which are required for mating behavior. The objective of this study was to compare the distribution of androgen- and estrogen-concentrating neurons in MPOA, BNST, and Me in the adult male hamster using steroid autoradiography for estradiol (E2), testosterone (T) and dihydrotestosterone (DHT).

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To explain the high rate of blood flow in the corpus luteum, we hypothesize that luteal blood vessels offer minimal resistance to flow and are incapable of vasomotion. This hypothesis was tested in rabbits at mid-pseudopregnancy by measuring blood flow in the corpus luteum and ovarian stroma with tracer-labeled microspheres at three levels of arterial blood pressure, which was manipulated by constricting the aorta above the ovarian artery. In addition, the distribution of vascular smooth muscle in the ovary was evaluated with morphological and immunocytochemical techniques.

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The luteotropic roles of prolactin and testosterone (or estradiol formed in luteal tissue) were investigated in hypophysectomized rats with homografts of granulosa lutein tissue. Using this approach, we could determine the effects of prolactin independently of estrogen, since granulosa lutein tissue does not produce estrogen de novo under these conditions. Luteinizing granulosa cells were expressed from the ovaries of immature pregnant mare's serum gonadotropin-primed Fischer 344 rats 6 h after injection of human chorionic gonadotropin.

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The in vitro intestinal ring uptake of prednisolone (11 beta,17,21-trihydroxypregna-1,4-diene-3,20-dione), prednisolone 21-succinate, and prednisolone 21-phosphate was compared in rings prepared from rat jejunum and colon. An HPLC assay was developed to determine whether the drug or intact prodrug was taken up by the tissue. In jejunum and colon, the uptake of prednisolone was limited by its solubility (0.

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On the day after ovulation, the thecal tissue and associated mural granulosa lutein cells of the rabbit corpus luteum were separated from the granulosa lutein 'core' by dissection and these tissues were cultured separately or together (whole corpus luteum) in defined medium for 10 days on stainless-steel grids. The medium was changed completely every 24 h. Replicate tissues were cultured with testosterone (10 ng/ml), but no other hormones were added to the medium.

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Regulation in epidermal differentiation can best be studied if molecular mechanism can be associated with structural and functional changes. Such recognized associations include the cessation of mitosis through inhibition of DNA replication by a G1-inhibitor present in the suprabasal cells, the biosynthesis of a tonofilament-protein as an early event in keratinization, the biosynthesis of HRP0 (histidine-rich protein) and its polymerization to HRPI during the formation of keratohyalin, the conversion of HRPI to HRPII coincident with the loss of the nucleus from the granular cell, and the aggregation of the stratum corneum basic protein and keratin filaments to form fibers in the cornified cell. To this list can now be added changes in specificity for lectin-binding to the cell surface as the keratinocyte progresses toward the cutaneous surface.

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Three fluorescein-labeled lectins have been shown to exhibit specificity for the surface of cells in different layers of the epidermis in the newborn rat. An isolectin from seeds of Bandeiraea simplicifolia with specificity for alpha-D-galactosyl end groups labeled the basal and lower spinous cells; a lectin from Ulex europaeus exhibiting specificity for alpha-L-fucosyl units outlines the surface of spinous cells, and a second lectin from B. simplicifolia, with specificity for N-acetyl-D-glucosamine, labels the cornified cells.

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