Publications by authors named "Karner E"

Article Synopsis
  • Preeclampsia (PE) is linked to reduced blood flow to the placenta, which can cause heart function changes in pregnant women; this study investigates these cardiac characteristics and their relationship with NT-proBNP levels.
  • A retrospective analysis of 65 PE-diagnosed pregnant women was conducted using echocardiography, revealing normal left ventricular size and function, but impaired longitudinal contractility and borderline left atrial size.
  • Increased NT-proBNP levels were associated with lower gestational age at delivery and were indicative of maternal cardiac changes, with a high preterm birth rate due to worsening PE or fetal health issues linked to placental insufficiency.
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Background: Biorefineries usually focus on the production of low-value commodities, such as bioethanol, platform chemicals or single cell protein. Shifting production to bioactive compounds, such as antimicrobial peptides, could provide an opportunity to increase the economic viability of biorefineries.

Results: Recombinant production of the antimicrobial peptide pediocin PA-1 in Corynebacterium glutamicum was transferred from yeast extract-based media to minimal media based on lignocellulosic spent sulfite liquor.

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Although programmed cell death ligand 1 (PD-L1) is best known for its role in immune suppression, tumor-intrinsic functions are emerging. Here, we report that tumor cells that express PD-L1 are sensitive to ferroptosis inducers such as imidazole ketone erastin (IKE). PD-L1 promotes ferroptosis sensitivity because it suppresses SLC7A11 expression and diminishes glutathione levels.

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We are interested in the contribution of integrins and the extracellular matrix to epithelial differentiation in carcinomas. This study was motivated by our finding that the Hippo effectors YAP and TAZ can sustain the expression of laminin 332 (LM332), the predominant ECM ligand for the integrin β4, in breast carcinoma cells with epithelial differentiation. More specifically, we observed that YAP and TAZ regulate the transcription of the LAMC2 subunit of LM332.

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This case report presents a patient with a monochorionic twin pregnancy, development of twin-twin transfusion-syndrome (TTTS) and polymicrogyria (PMG) of one fetus. Due to TTTS grade 3, fetoscopic laser ablation was performed at gestational week 16+1. Sonographic follow-up showed a cortical malformation of the right parietal lobe in the former donor, which was identified as PMG by MRI scans.

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(1) Background: Lower birth weight among newborns in higher altitudes has been well documented in previous literature. Several possible causes for this phenomenon have been investigated, including biophysiological adaptation, epigenetic or genetic mechanisms or lifestyle changes. This is the first study to show the effect modification of altitude and parity on the birth weight length ratio (BWLR) in women resident in moderate altitudes compared to a low sea level.

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Article Synopsis
  • Fetal growth restriction (FGR) is linked to higher risks of stillbirth and developmental issues, making early prediction important for better treatment options and outcomes.
  • A study analyzed 1,930 singleton pregnancies with low estimated fetal weight and found that lower levels of pregnancy-associated plasma protein A (PAPP-A) and higher uterine artery Doppler pulsatility index are associated with FGR.
  • The results suggest that monitoring PAPP-A and pulsatility index in the first trimester can help predict cases of FGR, potentially leading to improved care for affected pregnancies.
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Fetal dysrhythmias are common abnormalities, which can be categorized into three types: rhythm irregularities, tachyarrhythmias, and bradyarrhythmias. Fetal arrhythmias, especially in high-risk pregnancies, require special monitoring and treatment. The aim of this study was to assess the stillbirth and early and late neonatal mortality rates for pregnancies complicated by fetal dysrhythmias from one single tertiary referral center from 2000 to 2022.

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Article Synopsis
  • The study focused on the rates of stillbirth and neonatal mortality in pregnancies with congenital heart disease (CHD) and chromosomal trisomies (13, 18, and 21) from 2000-2020.
  • A total of 160 patients were evaluated, with 61.3% of families choosing to terminate the pregnancy; of those who continued, 25.8% experienced fetal death during pregnancy or delivery.
  • Live birth rates varied significantly by trisomy: 47.6% for trisomy 13/18 and 87.8% for trisomy 21, with a substantial portion of trisomy 21 infants surviving their first year.
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We pursued the hypothesis that specific glycans can be used to distinguish breast cancer stem cells (CSCs) and influence their function. Comparison of CSCs and non-CSCs from multiple breast cancer models revealed that CSCs are distinguished by expression of α2,3 sialylated core2 O-linked glycans. We identified a lectin, SLBR-N, which binds to O-linked α2,3 sialic acids, that was able to enrich for CSCs in vitro and in vivo.

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Understanding how cancer cells resist ferroptosis is a significant problem that impacts ongoing efforts to stimulate ferroptosis as a therapeutic strategy. We reported that prominin2 is induced by ferroptotic stimuli and functions to resist ferroptotic death. Although this finding has significant implications for therapy, specific prominin2 inhibitors are not available.

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Background: Education has a protective effect toward cognitive decline in advanced age and is an important factor contributing to cognitive reserve.

Objective: To elucidate the interaction effect of education and global mental status on cognitive performance of older patients with progressive cognitive decline.

Methods: This retrospective study included 1,392 patients.

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To minimize recurrence following resection of a cerebral metastasis, whole-brain irradiation therapy (WBRT) has been established as the adjuvant standard of care. With prolonged overall survival in cancer patients, deleterious effects of WBRT gain relevance. Sector irradiation (SR) aims to spare uninvolved brain tissue by applying the irradiation to the resection cavity and the tumor bed.

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Objective: Cognitive impairment in multiple system atrophy (MSA) is common, but remain poorly characterized. We evaluated cognitive and behavioral features in MSA patients and assessed between-group differences for MSA subtypes and the effect of orthostatic hypotension (OH) on cognition.

Methods: This retrospective study included 54 patients with clinical diagnosis of possible and probable MSA referred to the Department of Neurology at Medical University of Innsbruck between 2000 and 2018.

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Background And Purpose: CACNA1A encodes the α1 subunit of the neuronal calcium channel P/Q. CACNA1A mutations underlie three allelic disorders: familial hemiplegic migraine type 1 (FHM1), episodic ataxia type 2 (EA2) and spinocerebellar ataxia type 6 (SCA6). A clear-cut genotype-phenotype correlation is often lacking since clinical manifestations may overlap.

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Benzalkonium chloride (BAC), benzethonium chloride (BET), and chloroxylenol (PCMX) are antimicrobial ingredients used in many consumer products and are frequently detected in the environment. In 2016, the U.S.

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Cyanated pentacenes are very promising candidate materials for ambipolar and n-type transistors. However, only a few examples have been obtained to date - all requiring lengthy, multi-step processes. Herein, we present the first preparation of 5,7,12,14-tetracyanopentacene (TCP) and a facile, scaled-up preparation of 6,13-dicyanopentacene (DCP).

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Background: Pallidal deep brain stimulation (DBS) is effective in alleviating motor symptoms of medication refractory cervical dystonia, but little is known about effects on cognitive functions.

Methods: As part of the first randomized, sham-controlled multicenter trial on DBS in medication-refractory primary cervical dystonia (ClinicalTrials.gov, number NCT00148889), a subgroup of 13 patients aged 39 to 69 underwent prospective neuropsychological long-term follow-up assessments.

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Episodic ataxia type 2 (EA2) is an autosomal dominant inherited neurological disorder that is characterized by paroxysmal episodes of ataxia. The causative gene for EA2 is CACNA1A which codes for the alpha 1A subunit of the voltage-gated P/Q-type calcium channel (Cav2.1).

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Patients with mild cognitive impairment (MCI) are by definition still autonomous in daily life and therefore make their own decisions, for example, concerning their own or their partners' health care. Health care information typically contains complex mathematical constructs like proportions, probabilities, and survival rates. The purpose of this study was to investigate whether patients with MCI have difficulties with understanding health numeracy questions and to explore the impact of declining cognitive functions.

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Background: The background of route learning (RL) abilities in Alzheimer disease (AD), mild cognitive impairment (MCI), and normal aging needs further study. We searched for neuropsychological and demographical predictors of RL impairment.

Methods: RL was investigated in a clinical study including subjects classified as early AD (n=37), MCI (n=34), and aged normal controls (n=46).

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Article Synopsis
  • Friedreich ataxia (FRDA) is a common inherited disorder that can lead to cognitive impairments, particularly in attentional and executive functions, though not all patients are affected.
  • A study involving 29 adult FRDA patients compared their neuropsychological performance with that of 28 matched controls, focusing on factors like GAA repeat size and age of disease onset.
  • Results indicate that better cognitive performance is linked to a later onset of the disease, shorter GAA repeat lengths, and lower overall disease burden, highlighting the importance of age at onset as a predictor of cognitive outcomes for patient guidance.
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Executive dysfunction (ED) is a frequent consequence of neurological disorders, such as stroke, trauma or dementia, but also appears in normal aging. We developed a German version of the Frontal Assessment Battery (FAB-D), a short test which has previously been developed (Dubois et al., Neurology 55:1621-1626, 2000) to detect ED during bedside screening.

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Objective: To investigate long-term cognitive outcome, mood, and quality of life in a family with genetically proven familial hemiplegic migraine (FHM).

Background: FHM is a rare autosomal-dominant subtype of migraine with aura, characterized by some degree of hemiparesis during the aura. In a previous study, we showed preserved and impaired cognitive functions in patients with FHM.

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